v3.3.17

-   Fix YouTube muting after seeking with the progress slider
-   Respect preload="none" when setting quality if the media hasn't been loaded some other way

.eslintrc.json

@@ -32,8 +32,7 @@
                 "message": "Use local parameter instead."
             }
         ],
-        "array-bracket-newline": [2, { "minItems": 2 }],
-        "array-element-newline": [2, { "minItems": 2 }]
+        "no-param-reassign": [2, { "props": false }]
     },
     "parserOptions": {
         "sourceType": "module"

.github/pull_request_template.md

@@ -1,8 +1,8 @@
 ### Link to related issue (if applicable)
 
-### Sumary of proposed changes
+### Summary of proposed changes
 
-### Task list
-
-- [ ] Tested on [supported browsers](https://github.com/sampotts/plyr#browser-support)
-- [ ] Gulp build completed
+### Checklist
+- [ ] Use `develop` as the base branch
+- [ ] Exclude the gulp build from the PR
+- [ ] Test on [supported browsers](https://github.com/sampotts/plyr#browser-support)

.prettierrc

@@ -1,7 +1,7 @@
 {
     "useTabs": false,
     "tabWidth": 4,
-    "printWidth": 160,
+    "printWidth": 120,
     "singleQuote": true,
     "trailingComma": "all"
 }

.travis.yml

@@ -0,0 +1,7 @@
+language: node_js
+node_js:
+  - 'lts/*'
+
+script:
+  - npm run lint
+  - npm run build

CONTRIBUTING.md

@@ -0,0 +1,61 @@
+# Contributing
+
+We welcome bug reports, feature requests and pull requests. If you want to help us out, please follow these guidelines, in order to avoid redundant work.
+
+## Commenting
+When commenting, keep a civil tone and stay on topic. Don't ask for support (use [Stack Overflow](https://stackoverflow.com/) or [our Slack](https://bit.ly/plyr-chat) for that), or post "+1" or "I agree" type of comments. Use the emojis instead.
+
+Asking for the status on issues is discouraged. Unless someone has explicitly said in an issue that it's work in progress, most likely that means no one is working on it. We have a lot to do, and it may not be a top priority for us.
+
+We *may* moderate discussions. We do this to avoid threads being "hijacked", to avoid confusion in case the content is misleading or outdated, and to avoid bothering people with github notifications.
+
+## Reporting issues
+
+Our GitHub issue tracker is for bug reports and feature requests. Don't ask for support here. Use [Stack Overflow](https://stackoverflow.com/) or [our Slack](https://bit.ly/plyr-chat) for that.
+
+Please verify that your issue hasn't already been answered by our [FAQ](https://github.com/sampotts/plyr/wiki/FAQ), and that there isn't already an open issue for it.
+
+When applicable, check that your problem doesn't happen without Plyr (see [FAQ#1](https://github.com/sampotts/plyr/wiki/FAQ#1-does-plyr-work-with--)).
+
+Verify that you are following the documentation, are using the latest version of Plyr, and aren't getting any errors in your own code, causing the issues.
+
+Create one issue per problem or request (i.e. don't combine multiple problems to one git issue). Describe the issue as detailed as possible (see [Replication](#replication))
+
+## Replication
+
+In order to solve a problem, we first need to understand it. Please answer these questions when reporting issues or asking for help in [our Slack](https://bit.ly/plyr-chat).
+
+* Does it happen only with specific options and/or specific browsers?
+* Does is happen only with HTML5 video, audio, YouTube, Vimeo or a specific library?
+* Does the issue happen on [our demo](https://plyr.io/)? If not, please recreate it with a **minimal** example online. You can use our Codepen templates to get started:
+  * [HTML5 video](https://codepen.io/pen?template=bKeqpr)
+  * [HTML5 audio](https://codepen.io/pen?template=rKLywR)
+  * [YouTube](https://codepen.io/pen?template=GGqbbJ)
+  * [Vimeo](https://codepen.io/pen?template=bKeXNq)
+  * [Dash.js integration](https://codepen.io/pen?template=zaBgBy)
+  * [Hls.js integration](https://codepen.io/pen?template=oyLKQb)
+  * [Shaka Player integration](https://codepen.io/pen?template=ZRpzZO)
+
+It's important that you keep the issue description and replication demo **minimal**. If your replication includes frameworks, libraries or customizations, this makes it harder to debug and understand the issue. While it may be relevant to bring this up (ex: "I need Plyr to trigger the event sooner or it breaks Framework X"), please keep these out of your replication demo if they aren't strictly needed to reproduce the issue. If the issue is caused by something a library does that Plyr doesn't handle, it's more helpful for us if you find out what it is, and replicate the same problem without the library. Otherwise any developer who is willing to help out with the issue has to understand the frameworks, libraries and customizations of *your* choice, or no one will try to fix your issue because it's too much work.
+
+## Requesting features and improvements
+
+If you are missing something in Plyr, you can create a GitHub issue for this as well. Since we prioritize fixing bugs first, and may have a lot of other suggestions and architectural changes to work on as well, these may not be at the top of our list. 
+
+If your suggestion is important or urgent to you, you may want to first ensure it's something we want to have in Plyr, and then contribute it as a pull request. [Our Slack](https://bit.ly/plyr-chat) is the best place for questions like this.
+
+## Contributing features and documentation
+
+* Fork Plyr, and create a new branch in your fork, based on the **develop** branch
+
+* To test locally, you can use the demo. First make sure you have installed the dependencies with `npm install` or `yarn`. Run `gulp` to build while you are working, and run a local server from the repository root directory. If you have Python installed, this command should work: `python -m SimpleHTTPServer 8080`. Then go to `http://localhost:8080/demo/`
+
+* Develop and test your modifications.
+
+* Preferably commit your changes as independent logical chunks, with meaningful messages. Make sure you do not commit unnecessary files or changes, such as the build output, or logging and breakpoints you added for testing.
+
+* If your modifications changes the documented behavior or add new features, document these changes in readme.md.
+
+* When finished, push the changes to your GitHub repository and send a pull request to **develop**. Describe what your PR does.
+
+* If the Travis build fails, or if you get a code review with change requests, you can fix these by pushing new or rebased commits to the branch.

controls.md

@@ -2,9 +2,9 @@
 
 This is the markup that is rendered for the Plyr controls. You can use the default controls or provide a customized version of markup based on your needs. You can pass the following to the `controls` option:
 
-*   `Array` of options (this builds the default controls based on your choices)
-*   `String` containing the desired HTML
-*   `Function` that will be executed and should return one of the above
+-   `Array` of options (this builds the default controls based on your choices)
+-   `String` containing the desired HTML
+-   `Function` that will be executed and should return one of the above
 
 ## Using default controls
 
@@ -81,14 +81,14 @@ The classes and data attributes used in your template should match the `selector
 
 You need to add several placeholders to your HTML template that are replaced when rendering:
 
-*   `{id}` - the dynamically generated ID for the player (for form controls)
-*   `{seektime}` - the seek time specified in options for fast forward and rewind
-*   `{title}` - the title of your media, if specified
+-   `{id}` - the dynamically generated ID for the player (for form controls)
+-   `{seektime}` - the seek time specified in options for fast forward and rewind
+-   `{title}` - the title of your media, if specified
 
 ### Limitations
 
-*   Currently the settings menus are not supported with custom controls HTML
-*   AirPlay and PiP buttons can be added but you will have to manage feature detection
+-   Currently the settings menus are not supported with custom controls HTML
+-   AirPlay and PiP buttons can be added but you will have to manage feature detection
 
 ### Example
 
@@ -105,7 +105,7 @@ const controls = `
         <svg role="presentation"><use xlink:href="#plyr-rewind"></use></svg>
         <span class="plyr__tooltip" role="tooltip">Rewind {seektime} secs</span>
     </button>
-    <button type="button" class="plyr__control" aria-pressed="false" aria-label="Play, {title}" data-plyr="play">
+    <button type="button" class="plyr__control" aria-label="Play, {title}" data-plyr="play">
         <svg class="icon--pressed" role="presentation"><use xlink:href="#plyr-pause"></use></svg>
         <svg class="icon--not-pressed" role="presentation"><use xlink:href="#plyr-play"></use></svg>
         <span class="label--pressed plyr__tooltip" role="tooltip">Pause</span>
@@ -116,30 +116,28 @@ const controls = `
         <span class="plyr__tooltip" role="tooltip">Forward {seektime} secs</span>
     </button>
     <div class="plyr__progress">
-        <label for="plyr-seek-{id}" class="plyr__sr-only">Seek</label>
-        <input data-plyr="seek" type="range" min="0" max="100" step="0.01" value="0" id="plyr-seek-{id}">
-        <progress class="plyr__progress--buffer" min="0" max="100" value="0">% buffered</progress>
+        <input data-plyr="seek" type="range" min="0" max="100" step="0.01" value="0" aria-label="Seek">
+        <progress class="plyr__progress__buffer" min="0" max="100" value="0">% buffered</progress>
         <span role="tooltip" class="plyr__tooltip">00:00</span>
     </div>
     <div class="plyr__time plyr__time--current" aria-label="Current time">00:00</div>
     <div class="plyr__time plyr__time--duration" aria-label="Duration">00:00</div>
-    <button type="button" class="plyr__control" aria-pressed="false" aria-label="Mute" data-plyr="mute">
+    <button type="button" class="plyr__control" aria-label="Mute" data-plyr="mute">
         <svg class="icon--pressed" role="presentation"><use xlink:href="#plyr-muted"></use></svg>
         <svg class="icon--not-pressed" role="presentation"><use xlink:href="#plyr-volume"></use></svg>
         <span class="label--pressed plyr__tooltip" role="tooltip">Unmute</span>
         <span class="label--not-pressed plyr__tooltip" role="tooltip">Mute</span>
     </button>
     <div class="plyr__volume">
-        <label for="plyr-volume-{id}" class="plyr__sr-only">Volume</label>
-        <input data-plyr="volume" type="range" min="0" max="1" step="0.05" value="1" autocomplete="off" id="plyr-volume-{id}">
+        <input data-plyr="volume" type="range" min="0" max="1" step="0.05" value="1" autocomplete="off" aria-label="Volume">
     </div>
-    <button type="button" class="plyr__control" aria-pressed="true" aria-label="Enable captions" data-plyr="captions">
+    <button type="button" class="plyr__control" data-plyr="captions">
         <svg class="icon--pressed" role="presentation"><use xlink:href="#plyr-captions-on"></use></svg>
         <svg class="icon--not-pressed" role="presentation"><use xlink:href="#plyr-captions-off"></use></svg>
         <span class="label--pressed plyr__tooltip" role="tooltip">Disable captions</span>
         <span class="label--not-pressed plyr__tooltip" role="tooltip">Enable captions</span>
     </button>
-    <button type="button" class="plyr__control" aria-pressed="false" aria-label="Enter fullscreen" data-plyr="fullscreen">
+    <button type="button" class="plyr__control" data-plyr="fullscreen">
         <svg class="icon--pressed" role="presentation"><use xlink:href="#plyr-exit-fullscreen"></use></svg>
         <svg class="icon--not-pressed" role="presentation"><use xlink:href="#plyr-enter-fullscreen"></use></svg>
         <span class="label--pressed plyr__tooltip" role="tooltip">Exit fullscreen</span>

demo/index.html

@@ -96,7 +96,7 @@
                 <source src="https://cdn.plyr.io/static/demo/View_From_A_Blue_Moon_Trailer-576p.mp4" type="video/mp4" size="576">
                 <source src="https://cdn.plyr.io/static/demo/View_From_A_Blue_Moon_Trailer-720p.mp4" type="video/mp4" size="720">
                 <source src="https://cdn.plyr.io/static/demo/View_From_A_Blue_Moon_Trailer-1080p.mp4" type="video/mp4" size="1080">
-                <source src="https://cdn.plyr.io/static/demo/View_From_A_Blue_Moon_Trailer-1440p.mp4" type="video/mp4" size="1440">
+                <!-- <source src="https://cdn.plyr.io/static/demo/View_From_A_Blue_Moon_Trailer-1440p.mp4" type="video/mp4" size="1440"> -->
 
                 <!-- Caption files -->
                 <track kind="captions" label="English" srclang="en" src="https://cdn.plyr.io/static/demo/View_From_A_Blue_Moon_Trailer-HD.en.vtt"

demo/src/js/demo.js

@@ -143,7 +143,11 @@ import Raven from 'raven-js';
             // Set a new source
             function newSource(type, init) {
                 // Bail if new type isn't known, it's the current type, or current type is empty (video is default) and new type is video
-                if (!(type in types) || (!init && type === currentType) || (!currentType.length && type === types.video)) {
+                if (
+                    !(type in types) ||
+                    (!init && type === currentType) ||
+                    (!currentType.length && type === types.video)
+                ) {
                     return;
                 }
 
@@ -215,10 +219,12 @@ import Raven from 'raven-js';
                     case types.youtube:
                         player.source = {
                             type: 'video',
-                            sources: [{
-                                src: 'https://youtube.com/watch?v=bTqVqk7FSmY',
-                                provider: 'youtube',
-                            }],
+                            sources: [
+                                {
+                                    src: 'https://youtube.com/watch?v=bTqVqk7FSmY',
+                                    provider: 'youtube',
+                                },
+                            ],
                         };
 
                         break;
@@ -226,10 +232,12 @@ import Raven from 'raven-js';
                     case types.vimeo:
                         player.source = {
                             type: 'video',
-                            sources: [{
-                                src: 'https://vimeo.com/76979871',
-                                provider: 'vimeo',
-                            }],
+                            sources: [
+                                {
+                                    src: 'https://vimeo.com/76979871',
+                                    provider: 'vimeo',
+                                },
+                            ],
                         };
 
                         break;

gulpfile.js

@@ -226,9 +226,14 @@ gulp.task('watch', () => {
     gulp.watch(paths.demo.src.sass, tasks.sass);
 });
 
+// Build distribution
+gulp.task('build', () => {
+    run(tasks.clean, tasks.js, tasks.sass, tasks.sprite);
+});
+
 // Default gulp task
 gulp.task('default', () => {
-    run(tasks.clean, tasks.js, tasks.sass, tasks.sprite, 'watch');
+    run('build', 'watch');
 });
 
 // Publish a version to CDN and demo

package.json

@@ -1,6 +1,6 @@
 {
     "name": "plyr",
-    "version": "3.3.8",
+    "version": "3.3.17",
     "description": "A simple, accessible and customizable HTML5, YouTube and Vimeo media player",
     "homepage": "https://plyr.io",
     "main": "./dist/plyr.js",
@@ -20,14 +20,14 @@
         "git-branch": "^2.0.1",
         "gulp": "^3.9.1",
         "gulp-autoprefixer": "^5.0.0",
-        "gulp-better-rollup": "^3.1.0",
+        "gulp-better-rollup": "^3.2.1",
         "gulp-clean-css": "^3.9.4",
         "gulp-concat": "^2.6.1",
         "gulp-filter": "^5.1.0",
         "gulp-header": "^2.0.5",
         "gulp-open": "^3.0.1",
         "gulp-postcss": "^7.0.1",
-        "gulp-rename": "^1.2.3",
+        "gulp-rename": "^1.3.0",
         "gulp-replace": "^1.0.0",
         "gulp-s3": "^0.11.0",
         "gulp-sass": "^4.0.1",
@@ -44,12 +44,12 @@
         "rollup-plugin-commonjs": "^9.1.3",
         "rollup-plugin-node-resolve": "^3.3.0",
         "run-sequence": "^2.2.1",
-        "stylelint": "^9.2.1",
+        "stylelint": "^9.3.0",
         "stylelint-config-prettier": "^3.2.0",
         "stylelint-config-recommended": "^2.1.0",
         "stylelint-config-sass-guidelines": "^5.0.0",
         "stylelint-order": "^0.8.1",
-        "stylelint-scss": "^3.1.0",
+        "stylelint-scss": "^3.1.3",
         "stylelint-selector-bem-pattern": "^2.0.0"
     },
     "keywords": ["HTML5 Video", "HTML5 Audio", "Media Player", "DASH", "Shaka", "WordPress", "HLS"],
@@ -65,6 +65,8 @@
         "doc": "readme.md"
     },
     "scripts": {
+        "build": "gulp build",
+        "lint": "eslint src/js",
         "test": "echo \"Error: no test specified\" && exit 1"
     },
     "author": "Sam Potts <sam@potts.es>",
@@ -72,7 +74,7 @@
         "babel-polyfill": "^6.26.0",
         "custom-event-polyfill": "^0.3.0",
         "loadjs": "^3.5.4",
-        "raven-js": "^3.25.2",
+        "raven-js": "^3.26.2",
         "url-polyfill": "^1.0.13"
     }
 }

plyr.code-workspace

@@ -11,7 +11,8 @@
 		},
 		// Exclude from search
 		"search.exclude": {
-			"dist/": true
+			"dist/": true,
+			"demo/dist/": true
 		},
 		// Linting
 		"stylelint.enable": true,

readme.md

@@ -51,6 +51,10 @@ Some awesome folks have made plugins for CMSs and Components for JavaScript fram
 
 Here's a quick run through on getting up and running. There's also a [demo on Codepen](http://codepen.io/sampotts/pen/jARJYp). You can grab all of the source with [NPM](https://www.npmjs.com/package/plyr) using `npm install plyr`.
 
+### Try Plyr online
+
+You can try Plyr in Codepen using our minimal templates: [HTML5 video](https://codepen.io/pen?template=bKeqpr), [HTML5 audio](https://codepen.io/pen?template=rKLywR), [YouTube](https://codepen.io/pen?template=GGqbbJ), [Vimeo](https://codepen.io/pen?template=bKeXNq). For Streaming we also have example integrations with: [Dash.js](https://codepen.io/pen?template=zaBgBy), [Hls.js](https://codepen.io/pen?template=oyLKQb) and [Shaka Player](https://codepen.io/pen?template=ZRpzZO)
+
 ### HTML
 
 Plyr extends upon the standard [HTML5 media element](https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement) markup so that's all you need for those types.
@@ -128,13 +132,13 @@ See [initialising](#initialising) for more information on advanced setups.
 You can use our CDN (provided by [Fastly](https://www.fastly.com/)) for the JavaScript. There's 2 versions; one with and one without [polyfills](#polyfills). My recommendation would be to manage polyfills seperately as part of your application but to make life easier you can use the polyfilled build.
 
 ```html
-<script src="https://cdn.plyr.io/3.3.8/plyr.js"></script>
+<script src="https://cdn.plyr.io/3.3.17/plyr.js"></script>
 ```
 
 ...or...
 
 ```html
-<script src="https://cdn.plyr.io/3.3.8/plyr.polyfilled.js"></script>
+<script src="https://cdn.plyr.io/3.3.17/plyr.polyfilled.js"></script>
 ```
 
 ### CSS
@@ -148,13 +152,13 @@ Include the `plyr.css` stylsheet into your `<head>`
 If you want to use our CDN (provided by [Fastly](https://www.fastly.com/)) for the default CSS, you can use the following:
 
 ```html
-<link rel="stylesheet" href="https://cdn.plyr.io/3.3.8/plyr.css">
+<link rel="stylesheet" href="https://cdn.plyr.io/3.3.17/plyr.css">
 ```
 
 ### SVG Sprite
 
 The SVG sprite is loaded automatically from our CDN (provided by [Fastly](https://www.fastly.com/)). To change this, see the [options](#options) below. For
-reference, the CDN hosted SVG sprite can be found at `https://cdn.plyr.io/3.3.8/plyr.svg`.
+reference, the CDN hosted SVG sprite can be found at `https://cdn.plyr.io/3.3.17/plyr.svg`.
 
 ## Ads
 
@@ -211,7 +215,7 @@ You can specify a range of arguments for the constructor to use:
 
 *   A CSS string selector that's compatible with [`querySelector`](https://developer.mozilla.org/en-US/docs/Web/API/Document/querySelector)
 *   A [`HTMLElement`](https://developer.mozilla.org/en/docs/Web/API/HTMLElement)
-*   A [`NodeList]`(https://developer.mozilla.org/en-US/docs/Web/API/NodeList)
+*   A [`NodeList`](https://developer.mozilla.org/en-US/docs/Web/API/NodeList)
 *   A [jQuery](https://jquery.com) object
 
 _Note_: If a `NodeList`, `Array`, or jQuery object are passed, the first element will be used for setup. To setup multiple players, see [setting up multiple players](#setting-up-multiple-players) below.
@@ -303,7 +307,7 @@ Note the single quotes encapsulating the JSON and double quotes on the object ke
 | `invertTime`         | Boolean                    | `true`                                                                                                                         | Display the current time as a countdown rather than an incremental counter.                                                                                                                                                                                                                                                                                            |
 | `toggleInvert`       | Boolean                    | `true`                                                                                                                         | Allow users to click to toggle the above.                                                                                                                                                                                                                                                                                                                              |
 | `listeners`          | Object                     | `null`                                                                                                                         | Allows binding of event listeners to the controls before the default handlers. See the `defaults.js` for available listeners. If your handler prevents default on the event (`event.preventDefault()`), the default handler will not fire.                                                                                                                             |
-| `captions`           | Object                     | `{ active: false, language: window.navigator.language.split('-')[0] }`                                                         | `active`: Toggles if captions should be active by default. `language`: Sets the default language to load (if available).                                                                                                                                                                                                                                               |
+| `captions`           | Object                     | `{ active: false, language: 'auto', update: false }`                                                         | `active`: Toggles if captions should be active by default. `language`: Sets the default language to load (if available). 'auto' uses the browser language. `update`: Listen to changes to tracks and update menu. This is needed for some streaming libraries, but can result in unselectable language options).                                                                                                                                                                                                                                               |
 | `fullscreen`         | Object                     | `{ enabled: true, fallback: true, iosNative: false }`                                                                          | `enabled`: Toggles whether fullscreen should be enabled. `fallback`: Allow fallback to a full-window solution. `iosNative`: whether to use native iOS fullscreen when entering fullscreen (no custom controls)                                                                                                                                                         |
 | `ratio`              | String                     | `16:9`                                                                                                                         | The aspect ratio you want to use for embedded players.                                                                                                                                                                                                                                                                                                                 |
 | `storage`            | Object                     | `{ enabled: true, key: 'plyr' }`                                                                                               | `enabled`: Allow use of local storage to store user settings. `key`: The key name to use.                                                                                                                                                                                                                                                                              |
@@ -363,6 +367,7 @@ player.fullscreen.enter(); // Enter fullscreen
 | `airplay()`              | -                | Trigger the airplay dialog on supported devices.                                                           |
 | `toggleControls(toggle)` | Boolean          | Toggle the controls (video only). Takes optional truthy value to force it on/off.                                                        |
 | `on(event, function)`    | String, Function | Add an event listener for the specified event.                                                             |
+| `once(event, function)`    | String, Function | Add an event listener for the specified event once.                                                             |
 | `off(event, function)`   | String, Function | Remove an event listener for the specified event.                                                          |
 | `supports(type)`         | String           | Check support for a mime type.                                                                             |
 | `destroy()`              | -                | Destroy the instance and garbage collect any elements.                                                     |
@@ -407,7 +412,8 @@ player.fullscreen.active; // false;
 | `source`             | ✓      | ✓      | Gets or sets the current source for the player. The setter accepts an object. See [source setter](#source-setter) below for examples.                                                |
 | `poster`             | ✓      | ✓      | Gets or sets the current poster image for the player. The setter accepts a string; the URL for the updated poster image.                                                             |
 | `autoplay`           | ✓      | ✓      | Gets or sets the autoplay state of the player. The setter accepts a boolean.                                                                                                         |
-| `language`           | ✓      | ✓      | Gets or sets the preferred captions language for the player. The setter accepts an ISO two-letter language code. Support for the languages is dependent on the captions you include. |
+| `currentTrack`       | ✓      | ✓      | Gets or sets the caption track by index. `-1` means the track is missing or captions is not active |
+| `language`           | ✓      | ✓      | Gets or sets the preferred captions language for the player. The setter accepts an ISO two-letter language code. Support for the languages is dependent on the captions you include. If your captions don't have any language data, or if you have multiple tracks with the same language, you may want to use `currentTrack` instead. |
 | `fullscreen.active`  | ✓      | -      | Returns a boolean indicating if the current player is in fullscreen mode.                                                                                                            |
 | `fullscreen.enabled` | ✓      | -      | Returns a boolean indicating if the current player has fullscreen enabled.                                                                                                           |
 | `pip`                | ✓      | ✓      | Gets or sets the picture-in-picture state of the player. The setter accepts a boolean. This currently only supported on Safari 10+ on MacOS Sierra+ and iOS 10+.                     |
@@ -607,17 +613,6 @@ document then the shortcuts will work when any element has focus, apart from an
 | `C`        | Toggle captions                        |
 | `L`        | Toggle loop                            |
 
-## Streaming
-
-Because Plyr is an extension of the standard HTML5 video and audio elements, third party streaming plugins can be used with Plyr. Massive thanks to Matias
-Russitto ([@russitto](https://github.com/russitto)) for working on this. Here's a few examples:
-
-*   Using [hls.js](https://github.com/dailymotion/hls.js) - [Demo](http://codepen.io/sampotts/pen/JKEMqB)
-*   Using [Shaka](https://github.com/google/shaka-player) - [Demo](http://codepen.io/sampotts/pen/zBNpVR)
-*   Using [dash.js](https://github.com/Dash-Industry-Forum/dash.js) - [Demo](http://codepen.io/sampotts/pen/BzpJXN)
-
-_Note_: These need updating to use the new v3 syntax but would still work.
-
 ## Fullscreen
 
 Fullscreen in Plyr is supported by all browsers that [currently support it](http://caniuse.com/#feat=fullscreen).

src/js/captions.js

@@ -6,7 +6,21 @@
 import controls from './controls';
 import i18n from './i18n';
 import support from './support';
-import utils from './utils';
+import { dedupe } from './utils/arrays';
+import browser from './utils/browser';
+import {
+    createElement,
+    emptyElement,
+    getAttributesFromSelector,
+    insertAfter,
+    removeElement,
+    toggleClass,
+} from './utils/elements';
+import { on, triggerEvent } from './utils/events';
+import fetch from './utils/fetch';
+import is from './utils/is';
+import { getHTML } from './utils/strings';
+import { parseUrl } from './utils/urls';
 
 const captions = {
     // Setup captions
@@ -16,32 +30,14 @@ const captions = {
             return;
         }
 
-        // Set default language if not set
-        const stored = this.storage.get('language');
-
-        if (!utils.is.empty(stored)) {
-            this.captions.language = stored;
-        }
-
-        if (utils.is.empty(this.captions.language)) {
-            this.captions.language = this.config.captions.language.toLowerCase();
-        }
-
-        // Set captions enabled state if not set
-        if (!utils.is.boolean(this.captions.active)) {
-            const active = this.storage.get('captions');
-
-            if (utils.is.boolean(active)) {
-                this.captions.active = active;
-            } else {
-                this.captions.active = this.config.captions.active;
-            }
-        }
-
         // Only Vimeo and HTML5 video supported at this point
         if (!this.isVideo || this.isYouTube || (this.isHTML5 && !support.textTracks)) {
             // Clear menu and hide
-            if (utils.is.array(this.config.controls) && this.config.controls.includes('settings') && this.config.settings.includes('captions')) {
+            if (
+                is.array(this.config.controls) &&
+                this.config.controls.includes('settings') &&
+                this.config.settings.includes('captions')
+            ) {
                 controls.setCaptionsMenu.call(this);
             }
 
@@ -49,26 +45,12 @@ const captions = {
         }
 
         // Inject the container
-        if (!utils.is.element(this.elements.captions)) {
-            this.elements.captions = utils.createElement('div', utils.getAttributesFromSelector(this.config.selectors.captions));
+        if (!is.element(this.elements.captions)) {
+            this.elements.captions = createElement('div', getAttributesFromSelector(this.config.selectors.captions));
 
-            utils.insertAfter(this.elements.captions, this.elements.wrapper);
+            insertAfter(this.elements.captions, this.elements.wrapper);
         }
 
-        // Set the class hook
-        utils.toggleClass(this.elements.container, this.config.classNames.captions.enabled, !utils.is.empty(captions.getTracks.call(this)));
-
-        // Get tracks
-        const tracks = captions.getTracks.call(this);
-
-        // If no caption file exists, hide container for caption text
-        if (utils.is.empty(tracks)) {
-            return;
-        }
-
-        // Get browser info
-        const browser = utils.getBrowser();
-
         // Fix IE captions if CORS is used
         // Fetch captions and inject as blobs instead (data URIs not supported!)
         if (browser.isIE && window.URL) {
@@ -76,116 +58,274 @@ const captions = {
 
             Array.from(elements).forEach(track => {
                 const src = track.getAttribute('src');
-                const href = utils.parseUrl(src);
+                const url = parseUrl(src);
 
-                if (href.hostname !== window.location.href.hostname && [
-                    'http:',
-                    'https:',
-                ].includes(href.protocol)) {
-                    utils
-                        .fetch(src, 'blob')
+                if (
+                    url !== null &&
+                    url.hostname !== window.location.href.hostname &&
+                    ['http:', 'https:'].includes(url.protocol)
+                ) {
+                    fetch(src, 'blob')
                         .then(blob => {
                             track.setAttribute('src', window.URL.createObjectURL(blob));
                         })
                         .catch(() => {
-                            utils.removeElement(track);
+                            removeElement(track);
                         });
                 }
             });
         }
 
-        // Set language
-        captions.setLanguage.call(this);
+        // Get and set initial data
+        // The "preferred" options are not realized unless / until the wanted language has a match
+        // * languages: Array of user's browser languages.
+        // * language:  The language preferred by user settings or config
+        // * active:    The state preferred by user settings or config
+        // * toggled:   The real captions state
 
-        // Enable UI
-        captions.show.call(this);
+        const languages = dedupe(
+            Array.from(navigator.languages || navigator.userLanguage).map(language => language.split('-')[0]),
+        );
 
-        // Set available languages in list
-        if (utils.is.array(this.config.controls) && this.config.controls.includes('settings') && this.config.settings.includes('captions')) {
+        let language = (this.storage.get('language') || this.config.captions.language || 'auto').toLowerCase();
+
+        // Use first browser language when language is 'auto'
+        if (language === 'auto') {
+            [language] = languages;
+        }
+
+        let active = this.storage.get('captions');
+        if (!is.boolean(active)) {
+            ({ active } = this.config.captions);
+        }
+
+        Object.assign(this.captions, {
+            toggled: false,
+            active,
+            language,
+            languages,
+        });
+
+        // Watch changes to textTracks and update captions menu
+        if (this.isHTML5) {
+            const trackEvents = this.config.captions.update ? 'addtrack removetrack' : 'removetrack';
+            on.call(this, this.media.textTracks, trackEvents, captions.update.bind(this));
+        }
+
+        // Update available languages in list next tick (the event must not be triggered before the listeners)
+        setTimeout(captions.update.bind(this), 0);
+    },
+
+    // Update available language options in settings based on tracks
+    update() {
+        const tracks = captions.getTracks.call(this, true);
+        // Get the wanted language
+        const { active, language, meta, currentTrackNode } = this.captions;
+        const languageExists = Boolean(tracks.find(track => track.language === language));
+
+        // Handle tracks (add event listener and "pseudo"-default)
+        if (this.isHTML5 && this.isVideo) {
+            tracks.filter(track => !meta.get(track)).forEach(track => {
+                this.debug.log('Track added', track);
+                // Attempt to store if the original dom element was "default"
+                meta.set(track, {
+                    default: track.mode === 'showing',
+                });
+
+                // Turn off native caption rendering to avoid double captions
+                track.mode = 'hidden';
+
+                // Add event listener for cue changes
+                on.call(this, track, 'cuechange', () => captions.updateCues.call(this));
+            });
+        }
+
+        // Update language first time it matches, or if the previous matching track was removed
+        if ((languageExists && this.language !== language) || !tracks.includes(currentTrackNode)) {
+            captions.setLanguage.call(this, language);
+            captions.toggle.call(this, active && languageExists);
+        }
+
+        // Enable or disable captions based on track length
+        toggleClass(this.elements.container, this.config.classNames.captions.enabled, !is.empty(tracks));
+
+        // Update available languages in list
+        if ((this.config.controls || []).includes('settings') && this.config.settings.includes('captions')) {
             controls.setCaptionsMenu.call(this);
         }
     },
 
-    // Set the captions language
-    setLanguage() {
-        // Setup HTML5 track rendering
-        if (this.isHTML5 && this.isVideo) {
-            captions.getTracks.call(this).forEach(track => {
-                // Show track
-                utils.on(track, 'cuechange', event => captions.setCue.call(this, event));
+    // Toggle captions display
+    // Used internally for the toggleCaptions method, with the passive option forced to false
+    toggle(input, passive = true) {
+        // If there's no full support
+        if (!this.supported.ui) {
+            return;
+        }
 
-                // Turn off native caption rendering to avoid double captions
-                // eslint-disable-next-line
-                track.mode = 'hidden';
-            });
+        const { toggled } = this.captions; // Current state
+        const activeClass = this.config.classNames.captions.active;
 
-            // Get current track
-            const currentTrack = captions.getCurrentTrack.call(this);
+        // Get the next state
+        // If the method is called without parameter, toggle based on current value
+        const active = is.nullOrUndefined(input) ? !toggled : input;
 
-            // Check if suported kind
-            if (utils.is.track(currentTrack)) {
-                // If we change the active track while a cue is already displayed we need to update it
-                if (Array.from(currentTrack.activeCues || []).length) {
-                    captions.setCue.call(this, currentTrack);
-                }
+        // Update state and trigger event
+        if (active !== toggled) {
+            // When passive, don't override user preferences
+            if (!passive) {
+                this.captions.active = active;
+                this.storage.set({ captions: active });
             }
-        } else if (this.isVimeo && this.captions.active) {
-            this.embed.enableTextTrack(this.language);
+
+            // Force language if the call isn't passive and there is no matching language to toggle to
+            if (!this.language && active && !passive) {
+                const tracks = captions.getTracks.call(this);
+                const track = captions.findTrack.call(this, [this.captions.language, ...this.captions.languages], true);
+
+                // Override user preferences to avoid switching languages if a matching track is added
+                this.captions.language = track.language;
+
+                // Set caption, but don't store in localStorage as user preference
+                captions.set.call(this, tracks.indexOf(track));
+                return;
+            }
+
+            // Toggle state
+            this.elements.buttons.captions.pressed = active;
+
+            // Add class hook
+            toggleClass(this.elements.container, activeClass, active);
+
+            this.captions.toggled = active;
+
+            // Update settings menu
+            controls.updateSetting.call(this, 'captions');
+
+            // Trigger event (not used internally)
+            triggerEvent.call(this, this.media, active ? 'captionsenabled' : 'captionsdisabled');
         }
     },
 
-    // Get the tracks
-    getTracks() {
-        // Return empty array at least
-        if (utils.is.nullOrUndefined(this.media)) {
-            return [];
-        }
-
-        // Only get accepted kinds
-        return Array.from(this.media.textTracks || []).filter(track => [
-            'captions',
-            'subtitles',
-        ].includes(track.kind));
-    },
-
-    // Get the current track for the current language
-    getCurrentTrack() {
+    // Set captions by track index
+    // Used internally for the currentTrack setter with the passive option forced to false
+    set(index, passive = true) {
         const tracks = captions.getTracks.call(this);
 
-        if (!tracks.length) {
-            return null;
+        // Disable captions if setting to -1
+        if (index === -1) {
+            captions.toggle.call(this, false, passive);
+            return;
         }
 
-        // Get track based on current language
-        let track = tracks.find(track => track.language.toLowerCase() === this.language);
-
-        // Get the <track> with default attribute
-        if (!track) {
-            track = utils.getElement.call(this, 'track[default]');
+        if (!is.number(index)) {
+            this.debug.warn('Invalid caption argument', index);
+            return;
         }
 
-        // Get the first track
-        if (!track) {
-            [track] = tracks;
+        if (!(index in tracks)) {
+            this.debug.warn('Track not found', index);
+            return;
         }
 
-        return track;
+        if (this.captions.currentTrack !== index) {
+            this.captions.currentTrack = index;
+            const track = tracks[index];
+            const { language } = track || {};
+
+            // Store reference to node for invalidation on remove
+            this.captions.currentTrackNode = track;
+
+            // Update settings menu
+            controls.updateSetting.call(this, 'captions');
+
+            // When passive, don't override user preferences
+            if (!passive) {
+                this.captions.language = language;
+                this.storage.set({ language });
+            }
+
+            // Handle Vimeo captions
+            if (this.isVimeo) {
+                this.embed.enableTextTrack(language);
+            }
+
+            // Trigger event
+            triggerEvent.call(this, this.media, 'languagechange');
+        }
+
+        // Show captions
+        captions.toggle.call(this, true, passive);
+
+        if (this.isHTML5 && this.isVideo) {
+            // If we change the active track while a cue is already displayed we need to update it
+            captions.updateCues.call(this);
+        }
+    },
+
+    // Set captions by language
+    // Used internally for the language setter with the passive option forced to false
+    setLanguage(input, passive = true) {
+        if (!is.string(input)) {
+            this.debug.warn('Invalid language argument', input);
+            return;
+        }
+        // Normalize
+        const language = input.toLowerCase();
+        this.captions.language = language;
+
+        // Set currentTrack
+        const tracks = captions.getTracks.call(this);
+        const track = captions.findTrack.call(this, [language]);
+        captions.set.call(this, tracks.indexOf(track), passive);
+    },
+
+    // Get current valid caption tracks
+    // If update is false it will also ignore tracks without metadata
+    // This is used to "freeze" the language options when captions.update is false
+    getTracks(update = false) {
+        // Handle media or textTracks missing or null
+        const tracks = Array.from((this.media || {}).textTracks || []);
+        // For HTML5, use cache instead of current tracks when it exists (if captions.update is false)
+        // Filter out removed tracks and tracks that aren't captions/subtitles (for example metadata)
+        return tracks
+            .filter(track => !this.isHTML5 || update || this.captions.meta.has(track))
+            .filter(track => ['captions', 'subtitles'].includes(track.kind));
+    },
+
+    // Match tracks based on languages and get the first
+    findTrack(languages, force = false) {
+        const tracks = captions.getTracks.call(this);
+        const sortIsDefault = track => Number((this.captions.meta.get(track) || {}).default);
+        const sorted = Array.from(tracks).sort((a, b) => sortIsDefault(b) - sortIsDefault(a));
+        let track;
+        languages.every(language => {
+            track = sorted.find(track => track.language === language);
+            return !track; // Break iteration if there is a match
+        });
+        // If no match is found but is required, get first
+        return track || (force ? sorted[0] : undefined);
+    },
+
+    // Get the current track
+    getCurrentTrack() {
+        return captions.getTracks.call(this)[this.currentTrack];
     },
 
     // Get UI label for track
     getLabel(track) {
         let currentTrack = track;
 
-        if (!utils.is.track(currentTrack) && support.textTracks && this.captions.active) {
+        if (!is.track(currentTrack) && support.textTracks && this.captions.toggled) {
             currentTrack = captions.getCurrentTrack.call(this);
         }
 
-        if (utils.is.track(currentTrack)) {
-            if (!utils.is.empty(currentTrack.label)) {
+        if (is.track(currentTrack)) {
+            if (!is.empty(currentTrack.label)) {
                 return currentTrack.label;
             }
 
-            if (!utils.is.empty(currentTrack.language)) {
+            if (!is.empty(currentTrack.language)) {
                 return track.language.toUpperCase();
             }
 
@@ -195,74 +335,48 @@ const captions = {
         return i18n.get('disabled', this.config);
     },
 
-    // Display active caption if it contains text
-    setCue(input) {
-        // Get the track from the event if needed
-        const track = utils.is.event(input) ? input.target : input;
-        const { activeCues } = track;
-        const active = activeCues.length && activeCues[0];
-        const currentTrack = captions.getCurrentTrack.call(this);
-
-        // Only display current track
-        if (track !== currentTrack) {
-            return;
-        }
-
-        // Display a cue, if there is one
-        if (utils.is.cue(active)) {
-            captions.setText.call(this, active.getCueAsHTML());
-        } else {
-            captions.setText.call(this, null);
-        }
-
-        utils.dispatchEvent.call(this, this.media, 'cuechange');
-    },
-
-    // Set the current caption
-    setText(input) {
+    // Update captions using current track's active cues
+    // Also optional array argument in case there isn't any track (ex: vimeo)
+    updateCues(input) {
         // Requires UI
         if (!this.supported.ui) {
             return;
         }
 
-        if (utils.is.element(this.elements.captions)) {
-            const content = utils.createElement('span');
-
-            // Empty the container
-            utils.emptyElement(this.elements.captions);
-
-            // Default to empty
-            const caption = !utils.is.nullOrUndefined(input) ? input : '';
-
-            // Set the span content
-            if (utils.is.string(caption)) {
-                content.innerText = caption.trim();
-            } else {
-                content.appendChild(caption);
-            }
-
-            // Set new caption text
-            this.elements.captions.appendChild(content);
-        } else {
+        if (!is.element(this.elements.captions)) {
             this.debug.warn('No captions element to render to');
-        }
-    },
-
-    // Display captions container and button (for initialization)
-    show() {
-        // Try to load the value from storage
-        let active = this.storage.get('captions');
-
-        // Otherwise fall back to the default config
-        if (!utils.is.boolean(active)) {
-            ({ active } = this.config.captions);
-        } else {
-            this.captions.active = active;
+            return;
         }
 
-        if (active) {
-            utils.toggleClass(this.elements.container, this.config.classNames.captions.active, true);
-            utils.toggleState(this.elements.buttons.captions, true);
+        // Only accept array or empty input
+        if (!is.nullOrUndefined(input) && !Array.isArray(input)) {
+            this.debug.warn('updateCues: Invalid input', input);
+            return;
+        }
+
+        let cues = input;
+
+        // Get cues from track
+        if (!cues) {
+            const track = captions.getCurrentTrack.call(this);
+            cues = Array.from((track || {}).activeCues || [])
+                .map(cue => cue.getCueAsHTML())
+                .map(getHTML);
+        }
+
+        // Set new caption text
+        const content = cues.map(cueText => cueText.trim()).join('\n');
+        const changed = content !== this.elements.captions.innerHTML;
+
+        if (changed) {
+            // Empty the container and create a new child element
+            emptyElement(this.elements.captions);
+            const caption = createElement('span', getAttributesFromSelector(this.config.selectors.caption));
+            caption.innerHTML = content;
+            this.elements.captions.appendChild(caption);
+
+            // Trigger event
+            triggerEvent.call(this, this.media, 'cuechange');
         }
     },
 };

src/js/config/defaults.js

@@ -18,6 +18,10 @@ const defaults = {
     // Only allow one media playing at once (vimeo only)
     autopause: true,
 
+    // Allow inline playback on iOS (this effects YouTube/Vimeo - HTML5 requires the attribute present)
+    // TODO: Remove iosNative fullscreen option in favour of this (logic needs work)
+    playsinline: true,
+
     // Default time to skip when rewind/fast forward
     seekTime: 10,
 
@@ -56,7 +60,7 @@ const defaults = {
     // Sprite (for icons)
     loadSprite: true,
     iconPrefix: 'plyr',
-    iconUrl: 'https://cdn.plyr.io/3.3.8/plyr.svg',
+    iconUrl: 'https://cdn.plyr.io/3.3.12/plyr.svg',
 
     // Blank video (used to prevent errors on source change)
     blankVideo: 'https://cdn.plyr.io/static/blank.mp4',
@@ -89,15 +93,7 @@ const defaults = {
     // Speed default and options to display
     speed: {
         selected: 1,
-        options: [
-            0.5,
-            0.75,
-            1,
-            1.25,
-            1.5,
-            1.75,
-            2,
-        ],
+        options: [0.5, 0.75, 1, 1.25, 1.5, 1.75, 2],
     },
 
     // Keyboard shortcut settings
@@ -115,7 +111,10 @@ const defaults = {
     // Captions settings
     captions: {
         active: false,
-        language: (navigator.language || navigator.userLanguage).split('-')[0],
+        language: 'auto',
+        // Listen to new tracks added after Plyr is initialized.
+        // This is needed for streaming captions, but may result in unselectable options
+        update: false,
     },
 
     // Fullscreen settings
@@ -148,11 +147,7 @@ const defaults = {
         'airplay',
         'fullscreen',
     ],
-    settings: [
-        'captions',
-        'quality',
-        'speed',
-    ],
+    settings: ['captions', 'quality', 'speed'],
 
     // Localisation
     i18n: {
@@ -162,6 +157,7 @@ const defaults = {
         pause: 'Pause',
         fastForward: 'Forward {seektime}s',
         seek: 'Seek',
+        seekLabel: '{currentTime} of {duration}',
         played: 'Played',
         buffered: 'Buffered',
         currentTime: 'Current time',
@@ -176,6 +172,7 @@ const defaults = {
         frameTitle: 'Player for {title}',
         captions: 'Captions',
         settings: 'Settings',
+        menuBack: 'Go back to previous menu',
         speed: 'Speed',
         normal: 'Normal',
         quality: 'Quality',
@@ -187,6 +184,14 @@ const defaults = {
         disabled: 'Disabled',
         enabled: 'Enabled',
         advertisement: 'Ad',
+        qualityBadge: {
+            2160: '4K',
+            1440: 'HD',
+            1080: 'HD',
+            720: 'HD',
+            576: 'SD',
+            480: 'SD',
+        },
     },
 
     // URLs
@@ -198,7 +203,8 @@ const defaults = {
         },
         youtube: {
             sdk: 'https://www.youtube.com/iframe_api',
-            api: 'https://www.googleapis.com/youtube/v3/videos?id={0}&key={1}&fields=items(snippet(title))&part=snippet',
+            api:
+                'https://www.googleapis.com/youtube/v3/videos?id={0}&key={1}&fields=items(snippet(title))&part=snippet',
         },
         googleIMA: {
             sdk: 'https://imasdk.googleapis.com/js/sdkloader/ima3.js',
@@ -311,13 +317,13 @@ const defaults = {
         display: {
             currentTime: '.plyr__time--current',
             duration: '.plyr__time--duration',
-            buffer: '.plyr__progress--buffer',
-            played: '.plyr__progress--played',
-            loop: '.plyr__progress--loop',
+            buffer: '.plyr__progress__buffer',
+            loop: '.plyr__progress__loop', // Used later
             volume: '.plyr__volume--display',
         },
         progress: '.plyr__progress',
         captions: '.plyr__captions',
+        caption: '.plyr__caption',
         menu: {
             quality: '.js-plyr__menu__list--quality',
         },
@@ -334,6 +340,7 @@ const defaults = {
         posterEnabled: 'plyr__poster-enabled',
         ads: 'plyr__ads',
         control: 'plyr__control',
+        controlPressed: 'plyr__control--pressed',
         playing: 'plyr--playing',
         paused: 'plyr--paused',
         stopped: 'plyr--stopped',

src/js/config/types.js

@@ -13,4 +13,22 @@ export const types = {
     video: 'video',
 };
 
+/**
+ * Get provider by URL
+ * @param {string} url
+ */
+export function getProviderByUrl(url) {
+    // YouTube
+    if (/^(https?:\/\/)?(www\.)?(youtube\.com|youtu\.?be)\/.+$/.test(url)) {
+        return providers.youtube;
+    }
+
+    // Vimeo
+    if (/^https?:\/\/player.vimeo.com\/video\/\d{0,9}(?=\b|\/)/.test(url)) {
+        return providers.vimeo;
+    }
+
+    return null;
+}
+
 export default { providers, types };

src/js/fullscreen.js

@@ -3,9 +3,10 @@
 // https://developer.mozilla.org/en-US/docs/Web/API/Fullscreen_API#prefixing
 // ==========================================================================
 
-import utils from './utils';
-
-const browser = utils.getBrowser();
+import browser from './utils/browser';
+import { hasClass, toggleClass, trapFocus } from './utils/elements';
+import { on, triggerEvent } from './utils/events';
+import is from './utils/is';
 
 function onChange() {
     if (!this.enabled) {
@@ -14,16 +15,16 @@ function onChange() {
 
     // Update toggle button
     const button = this.player.elements.buttons.fullscreen;
-    if (utils.is.element(button)) {
-        utils.toggleState(button, this.active);
+    if (is.element(button)) {
+        button.pressed = this.active;
     }
 
     // Trigger an event
-    utils.dispatchEvent.call(this.player, this.target, this.active ? 'enterfullscreen' : 'exitfullscreen', true);
+    triggerEvent.call(this.player, this.target, this.active ? 'enterfullscreen' : 'exitfullscreen', true);
 
     // Trap focus in container
     if (!browser.isIos) {
-        utils.trapFocus.call(this.player, this.target, this.active);
+        trapFocus.call(this.player, this.target, this.active);
     }
 }
 
@@ -42,7 +43,7 @@ function toggleFallback(toggle = false) {
     document.body.style.overflow = toggle ? 'hidden' : '';
 
     // Toggle class hook
-    utils.toggleClass(this.target, this.player.config.classNames.fullscreen.fallback, toggle);
+    toggleClass(this.target, this.player.config.classNames.fullscreen.fallback, toggle);
 
     // Toggle button and fire events
     onChange.call(this);
@@ -62,15 +63,20 @@ class Fullscreen {
 
         // Register event listeners
         // Handle event (incase user presses escape etc)
-        utils.on(document, this.prefix === 'ms' ? 'MSFullscreenChange' : `${this.prefix}fullscreenchange`, () => {
-            // TODO: Filter for target??
-            onChange.call(this);
-        });
+        on.call(
+            this.player,
+            document,
+            this.prefix === 'ms' ? 'MSFullscreenChange' : `${this.prefix}fullscreenchange`,
+            () => {
+                // TODO: Filter for target??
+                onChange.call(this);
+            },
+        );
 
         // Fullscreen toggle on double click
-        utils.on(this.player.elements.container, 'dblclick', event => {
+        on.call(this.player, this.player.elements.container, 'dblclick', event => {
             // Ignore double click in controls
-            if (utils.is.element(this.player.elements.controls) && this.player.elements.controls.contains(event.target)) {
+            if (is.element(this.player.elements.controls) && this.player.elements.controls.contains(event.target)) {
                 return;
             }
 
@@ -83,26 +89,27 @@ class Fullscreen {
 
     // Determine if native supported
     static get native() {
-        return !!(document.fullscreenEnabled || document.webkitFullscreenEnabled || document.mozFullScreenEnabled || document.msFullscreenEnabled);
+        return !!(
+            document.fullscreenEnabled ||
+            document.webkitFullscreenEnabled ||
+            document.mozFullScreenEnabled ||
+            document.msFullscreenEnabled
+        );
     }
 
     // Get the prefix for handlers
     static get prefix() {
         // No prefix
-        if (utils.is.function(document.exitFullscreen)) {
+        if (is.function(document.exitFullscreen)) {
             return '';
         }
 
         // Check for fullscreen support by vendor prefix
         let value = '';
-        const prefixes = [
-            'webkit',
-            'moz',
-            'ms',
-        ];
+        const prefixes = ['webkit', 'moz', 'ms'];
 
         prefixes.some(pre => {
-            if (utils.is.function(document[`${pre}ExitFullscreen`]) || utils.is.function(document[`${pre}CancelFullScreen`])) {
+            if (is.function(document[`${pre}ExitFullscreen`]) || is.function(document[`${pre}CancelFullScreen`])) {
                 value = pre;
                 return true;
             }
@@ -135,7 +142,7 @@ class Fullscreen {
 
         // Fallback using classname
         if (!Fullscreen.native) {
-            return utils.hasClass(this.target, this.player.config.classNames.fullscreen.fallback);
+            return hasClass(this.target, this.player.config.classNames.fullscreen.fallback);
         }
 
         const element = !this.prefix ? document.fullscreenElement : document[`${this.prefix}${this.property}Element`];
@@ -145,7 +152,9 @@ class Fullscreen {
 
     // Get target element
     get target() {
-        return browser.isIos && this.player.config.fullscreen.iosNative ? this.player.media : this.player.elements.container;
+        return browser.isIos && this.player.config.fullscreen.iosNative
+            ? this.player.media
+            : this.player.elements.container;
     }
 
     // Update UI
@@ -157,7 +166,7 @@ class Fullscreen {
         }
 
         // Add styling hook to show button
-        utils.toggleClass(this.player.elements.container, this.player.config.classNames.fullscreen.enabled, this.enabled);
+        toggleClass(this.player.elements.container, this.player.config.classNames.fullscreen.enabled, this.enabled);
     }
 
     // Make an element fullscreen
@@ -175,7 +184,7 @@ class Fullscreen {
             toggleFallback.call(this, true);
         } else if (!this.prefix) {
             this.target.requestFullscreen();
-        } else if (!utils.is.empty(this.prefix)) {
+        } else if (!is.empty(this.prefix)) {
             this.target[`${this.prefix}Request${this.property}`]();
         }
     }
@@ -194,7 +203,7 @@ class Fullscreen {
             toggleFallback.call(this, false);
         } else if (!this.prefix) {
             (document.cancelFullScreen || document.exitFullscreen).call(document);
-        } else if (!utils.is.empty(this.prefix)) {
+        } else if (!is.empty(this.prefix)) {
             const action = this.prefix === 'moz' ? 'Cancel' : 'Exit';
             document[`${this.prefix}${action}${this.property}`]();
         }

src/js/html5.js

@@ -3,40 +3,28 @@
 // ==========================================================================
 
 import support from './support';
-import utils from './utils';
+import { removeElement } from './utils/elements';
+import { triggerEvent } from './utils/events';
 
 const html5 = {
     getSources() {
         if (!this.isHTML5) {
-            return null;
+            return [];
         }
 
-        return this.media.querySelectorAll('source');
+        const sources = Array.from(this.media.querySelectorAll('source'));
+
+        // Filter out unsupported sources
+        return sources.filter(source => support.mime.call(this, source.getAttribute('type')));
     },
 
     // Get quality levels
     getQualityOptions() {
-        if (!this.isHTML5) {
-            return null;
-        }
-
-        // Get sources
-        const sources = html5.getSources.call(this);
-
-        if (utils.is.empty(sources)) {
-            return null;
-        }
-
-        // Get <source> with size attribute
-        const sizes = Array.from(sources).filter(source => !utils.is.empty(source.getAttribute('size')));
-
-        // If none, bail
-        if (utils.is.empty(sizes)) {
-            return null;
-        }
-
-        // Reduce to unique list
-        return utils.dedupe(sizes.map(source => Number(source.getAttribute('size'))));
+        // Get sizes from <source> elements
+        return html5.getSources
+            .call(this)
+            .map(source => Number(source.getAttribute('size')))
+            .filter(Boolean);
     },
 
     extend() {
@@ -51,67 +39,47 @@ const html5 = {
             get() {
                 // Get sources
                 const sources = html5.getSources.call(player);
+                const source = sources.find(source => source.getAttribute('src') === player.source);
 
-                if (utils.is.empty(sources)) {
-                    return null;
-                }
-
-                const matches = Array.from(sources).filter(source => source.getAttribute('src') === player.source);
-
-                if (utils.is.empty(matches)) {
-                    return null;
-                }
-
-                return Number(matches[0].getAttribute('size'));
+                // Return size, if match is found
+                return source && Number(source.getAttribute('size'));
             },
             set(input) {
                 // Get sources
                 const sources = html5.getSources.call(player);
 
-                if (utils.is.empty(sources)) {
+                // Get first match for requested size
+                const source = sources.find(source => Number(source.getAttribute('size')) === input);
+
+                // No matching source found
+                if (!source) {
                     return;
                 }
 
-                // Get matches for requested size
-                const matches = Array.from(sources).filter(source => Number(source.getAttribute('size')) === input);
-
-                // No matches for requested size
-                if (utils.is.empty(matches)) {
-                    return;
-                }
-
-                // Get supported sources
-                const supported = matches.filter(source => support.mime.call(player, source.getAttribute('type')));
-
-                // No supported sources
-                if (utils.is.empty(supported)) {
-                    return;
-                }
-
-                // Trigger change event
-                utils.dispatchEvent.call(player, player.media, 'qualityrequested', false, {
-                    quality: input,
-                });
-
                 // Get current state
-                const { currentTime, playing } = player;
+                const { currentTime, paused, preload, readyState } = player.media;
 
                 // Set new source
-                player.media.src = supported[0].getAttribute('src');
+                player.media.src = source.getAttribute('src');
 
-                // Load new source
-                player.media.load();
+                // Prevent loading if preload="none" and the current source isn't loaded (#1044)
+                if (preload !== 'none' || readyState) {
+                    // Restore time
+                    player.once('loadedmetadata', () => {
+                        player.currentTime = currentTime;
 
-                // Resume playing
-                if (playing) {
-                    player.play();
+                        // Resume playing
+                        if (!paused) {
+                            player.play();
+                        }
+                    });
+
+                    // Load new source
+                    player.media.load();
                 }
 
-                // Restore time
-                player.currentTime = currentTime;
-
                 // Trigger change event
-                utils.dispatchEvent.call(player, player.media, 'qualitychange', false, {
+                triggerEvent.call(player, player.media, 'qualitychange', false, {
                     quality: input,
                 });
             },
@@ -126,7 +94,7 @@ const html5 = {
         }
 
         // Remove child sources
-        utils.removeElement(html5.getSources());
+        removeElement(html5.getSources.call(this));
 
         // Set blank video src attribute
         // This is to prevent a MEDIA_ERR_SRC_NOT_SUPPORTED error

src/js/i18n.js

@@ -2,26 +2,29 @@
 // Plyr internationalization
 // ==========================================================================
 
-import utils from './utils';
+import is from './utils/is';
+import { getDeep } from './utils/objects';
+import { replaceAll } from './utils/strings';
 
 const i18n = {
     get(key = '', config = {}) {
-        if (utils.is.empty(key) || utils.is.empty(config) || !Object.keys(config.i18n).includes(key)) {
+        if (is.empty(key) || is.empty(config)) {
             return '';
         }
 
-        let string = config.i18n[key];
+        let string = getDeep(config.i18n, key);
+
+        if (is.empty(string)) {
+            return '';
+        }
 
         const replace = {
             '{seektime}': config.seekTime,
             '{title}': config.title,
         };
 
-        Object.entries(replace).forEach(([
-            key,
-            value,
-        ]) => {
-            string = utils.replaceAll(string, key, value);
+        Object.entries(replace).forEach(([key, value]) => {
+            string = replaceAll(string, key, value);
         });
 
         return string;

src/js/listeners.js

@@ -4,10 +4,10 @@
 
 import controls from './controls';
 import ui from './ui';
-import utils from './utils';
-
-// Sniff out the browser
-const browser = utils.getBrowser();
+import browser from './utils/browser';
+import { getElement, getElements, getFocusElement, matches, toggleClass, toggleHidden } from './utils/elements';
+import { on, once, toggleListener, triggerEvent } from './utils/events';
+import is from './utils/is';
 
 class Listeners {
     constructor(player) {
@@ -32,7 +32,7 @@ class Listeners {
 
         // If the event is bubbled from the media element
         // Firefox doesn't get the keycode for whatever reason
-        if (!utils.is.number(code)) {
+        if (!is.number(code)) {
             return;
         }
 
@@ -46,35 +46,17 @@ class Listeners {
         // Reset on keyup
         if (pressed) {
             // Which keycodes should we prevent default
-            const preventDefault = [
-                48,
-                49,
-                50,
-                51,
-                52,
-                53,
-                54,
-                56,
-                57,
-                32,
-                75,
-                38,
-                40,
-                77,
-                39,
-                37,
-                70,
-                67,
-                73,
-                76,
-                79,
-            ];
+            const preventDefault = [32, 37, 38, 39, 40, 48, 49, 50, 51, 52, 53, 54, 56, 57, 67, 70, 73, 75, 76, 77, 79];
 
             // Check focused element
             // and if the focused element is not editable (e.g. text input)
             // and any that accept key input http://webaim.org/techniques/keyboard/
-            const focused = utils.getFocusElement();
-            if (utils.is.element(focused) && utils.matches(focused, this.player.config.selectors.editable)) {
+            const focused = getFocusElement();
+            if (
+                is.element(focused) &&
+                (focused !== this.player.elements.inputs.seek &&
+                    matches(focused, this.player.config.selectors.editable))
+            ) {
                 return;
             }
 
@@ -192,41 +174,37 @@ class Listeners {
         this.player.touch = true;
 
         // Add touch class
-        utils.toggleClass(this.player.elements.container, this.player.config.classNames.isTouch, true);
-
-        // Clean up
-        utils.off(document.body, 'touchstart', this.firstTouch);
+        toggleClass(this.player.elements.container, this.player.config.classNames.isTouch, true);
     }
 
     // Global window & document listeners
     global(toggle = true) {
         // Keyboard shortcuts
         if (this.player.config.keyboard.global) {
-            utils.toggleListener(window, 'keydown keyup', this.handleKey, toggle, false);
+            toggleListener.call(this.player, window, 'keydown keyup', this.handleKey, toggle, false);
         }
 
         // Click anywhere closes menu
-        utils.toggleListener(document.body, 'click', this.toggleMenu, toggle);
+        toggleListener.call(this.player, document.body, 'click', this.toggleMenu, toggle);
 
         // Detect touch by events
-        utils.on(document.body, 'touchstart', this.firstTouch);
+        once.call(this.player, document.body, 'touchstart', this.firstTouch);
     }
 
     // Container listeners
     container() {
         // Keyboard shortcuts
         if (!this.player.config.keyboard.global && this.player.config.keyboard.focused) {
-            utils.on(this.player.elements.container, 'keydown keyup', this.handleKey, false);
+            on.call(this.player, this.player.elements.container, 'keydown keyup', this.handleKey, false);
         }
 
         // Detect tab focus
         // Remove class on blur/focusout
-        utils.on(this.player.elements.container, 'focusout', event => {
-            utils.toggleClass(event.target, this.player.config.classNames.tabFocus, false);
+        on.call(this.player, this.player.elements.container, 'focusout', event => {
+            toggleClass(event.target, this.player.config.classNames.tabFocus, false);
         });
-
         // Add classname to tabbed elements
-        utils.on(this.player.elements.container, 'keydown', event => {
+        on.call(this.player, this.player.elements.container, 'keydown', event => {
             if (event.keyCode !== 9) {
                 return;
             }
@@ -234,59 +212,64 @@ class Listeners {
             // Delay the adding of classname until the focus has changed
             // This event fires before the focusin event
             setTimeout(() => {
-                utils.toggleClass(utils.getFocusElement(), this.player.config.classNames.tabFocus, true);
+                toggleClass(getFocusElement(), this.player.config.classNames.tabFocus, true);
             }, 0);
         });
 
         // Toggle controls on mouse events and entering fullscreen
-        utils.on(this.player.elements.container, 'mousemove mouseleave touchstart touchmove enterfullscreen exitfullscreen', event => {
-            const { controls } = this.player.elements;
+        on.call(
+            this.player,
+            this.player.elements.container,
+            'mousemove mouseleave touchstart touchmove enterfullscreen exitfullscreen',
+            event => {
+                const { controls } = this.player.elements;
 
-            // Remove button states for fullscreen
-            if (event.type === 'enterfullscreen') {
-                controls.pressed = false;
-                controls.hover = false;
-            }
+                // Remove button states for fullscreen
+                if (event.type === 'enterfullscreen') {
+                    controls.pressed = false;
+                    controls.hover = false;
+                }
 
-            // Show, then hide after a timeout unless another control event occurs
-            const show = [
-                'touchstart',
-                'touchmove',
-                'mousemove',
-            ].includes(event.type);
+                // Show, then hide after a timeout unless another control event occurs
+                const show = ['touchstart', 'touchmove', 'mousemove'].includes(event.type);
 
-            let delay = 0;
+                let delay = 0;
 
-            if (show) {
-                ui.toggleControls.call(this.player, true);
-                // Use longer timeout for touch devices
-                delay = this.player.touch ? 3000 : 2000;
-            }
+                if (show) {
+                    ui.toggleControls.call(this.player, true);
+                    // Use longer timeout for touch devices
+                    delay = this.player.touch ? 3000 : 2000;
+                }
 
-            // Clear timer
-            clearTimeout(this.player.timers.controls);
-            // Timer to prevent flicker when seeking
-            this.player.timers.controls = setTimeout(() => ui.toggleControls.call(this.player, false), delay);
-        });
+                // Clear timer
+                clearTimeout(this.player.timers.controls);
+                // Timer to prevent flicker when seeking
+                this.player.timers.controls = setTimeout(() => ui.toggleControls.call(this.player, false), delay);
+            },
+        );
     }
 
     // Listen for media events
     media() {
         // Time change on media
-        utils.on(this.player.media, 'timeupdate seeking seeked', event => controls.timeUpdate.call(this.player, event));
+        on.call(this.player, this.player.media, 'timeupdate seeking seeked', event =>
+            controls.timeUpdate.call(this.player, event),
+        );
 
         // Display duration
-        utils.on(this.player.media, 'durationchange loadeddata loadedmetadata', event => controls.durationUpdate.call(this.player, event));
+        on.call(this.player, this.player.media, 'durationchange loadeddata loadedmetadata', event =>
+            controls.durationUpdate.call(this.player, event),
+        );
 
         // Check for audio tracks on load
         // We can't use `loadedmetadata` as it doesn't seem to have audio tracks at that point
-        utils.on(this.player.media, 'loadeddata', () => {
-            utils.toggleHidden(this.player.elements.volume, !this.player.hasAudio);
-            utils.toggleHidden(this.player.elements.buttons.mute, !this.player.hasAudio);
+        on.call(this.player, this.player.media, 'canplay', () => {
+            toggleHidden(this.player.elements.volume, !this.player.hasAudio);
+            toggleHidden(this.player.elements.buttons.mute, !this.player.hasAudio);
         });
 
         // Handle the media finishing
-        utils.on(this.player.media, 'ended', () => {
+        on.call(this.player, this.player.media, 'ended', () => {
             // Show poster on end
             if (this.player.isHTML5 && this.player.isVideo && this.player.config.resetOnEnd) {
                 // Restart
@@ -295,20 +278,28 @@ class Listeners {
         });
 
         // Check for buffer progress
-        utils.on(this.player.media, 'progress playing seeking seeked', event => controls.updateProgress.call(this.player, event));
+        on.call(this.player, this.player.media, 'progress playing seeking seeked', event =>
+            controls.updateProgress.call(this.player, event),
+        );
 
         // Handle volume changes
-        utils.on(this.player.media, 'volumechange', event => controls.updateVolume.call(this.player, event));
+        on.call(this.player, this.player.media, 'volumechange', event =>
+            controls.updateVolume.call(this.player, event),
+        );
 
         // Handle play/pause
-        utils.on(this.player.media, 'playing play pause ended emptied timeupdate', event => ui.checkPlaying.call(this.player, event));
+        on.call(this.player, this.player.media, 'playing play pause ended emptied timeupdate', event =>
+            ui.checkPlaying.call(this.player, event),
+        );
 
         // Loading state
-        utils.on(this.player.media, 'waiting canplay seeked playing', event => ui.checkLoading.call(this.player, event));
+        on.call(this.player, this.player.media, 'waiting canplay seeked playing', event =>
+            ui.checkLoading.call(this.player, event),
+        );
 
         // If autoplay, then load advertisement if required
         // TODO: Show some sort of loading state while the ad manager loads else there's a delay before ad shows
-        utils.on(this.player.media, 'playing', () => {
+        on.call(this.player, this.player.media, 'playing', () => {
             if (!this.player.ads) {
                 return;
             }
@@ -323,15 +314,15 @@ class Listeners {
         // Click video
         if (this.player.supported.ui && this.player.config.clickToPlay && !this.player.isAudio) {
             // Re-fetch the wrapper
-            const wrapper = utils.getElement.call(this.player, `.${this.player.config.classNames.video}`);
+            const wrapper = getElement.call(this.player, `.${this.player.config.classNames.video}`);
 
             // Bail if there's no wrapper (this should never happen)
-            if (!utils.is.element(wrapper)) {
+            if (!is.element(wrapper)) {
                 return;
             }
 
             // On click play, pause ore restart
-            utils.on(wrapper, 'click', () => {
+            on.call(this.player, wrapper, 'click', () => {
                 // Touch devices will just show controls (if we're hiding controls)
                 if (this.player.config.hideControls && this.player.touch && !this.player.paused) {
                     return;
@@ -350,7 +341,8 @@ class Listeners {
 
         // Disable right click
         if (this.player.supported.ui && this.player.config.disableContextMenu) {
-            utils.on(
+            on.call(
+                this.player,
                 this.player.elements.wrapper,
                 'contextmenu',
                 event => {
@@ -361,13 +353,13 @@ class Listeners {
         }
 
         // Volume change
-        utils.on(this.player.media, 'volumechange', () => {
+        on.call(this.player, this.player.media, 'volumechange', () => {
             // Save to storage
             this.player.storage.set({ volume: this.player.volume, muted: this.player.muted });
         });
 
         // Speed change
-        utils.on(this.player.media, 'ratechange', () => {
+        on.call(this.player, this.player.media, 'ratechange', () => {
             // Update UI
             controls.updateSetting.call(this.player, 'speed');
 
@@ -376,49 +368,29 @@ class Listeners {
         });
 
         // Quality request
-        utils.on(this.player.media, 'qualityrequested', event => {
+        on.call(this.player, this.player.media, 'qualityrequested', event => {
             // Save to storage
             this.player.storage.set({ quality: event.detail.quality });
         });
 
         // Quality change
-        utils.on(this.player.media, 'qualitychange', event => {
+        on.call(this.player, this.player.media, 'qualitychange', event => {
             // Update UI
             controls.updateSetting.call(this.player, 'quality', null, event.detail.quality);
         });
 
-        // Caption language change
-        utils.on(this.player.media, 'languagechange', () => {
-            // Update UI
-            controls.updateSetting.call(this.player, 'captions');
-
-            // Save to storage
-            this.player.storage.set({ language: this.player.language });
-        });
-
-        // Captions toggle
-        utils.on(this.player.media, 'captionsenabled captionsdisabled', () => {
-            // Update UI
-            controls.updateSetting.call(this.player, 'captions');
-
-            // Save to storage
-            this.player.storage.set({ captions: this.player.captions.active });
-        });
-
         // Proxy events to container
         // Bubble up key events for Edge
-        utils.on(this.player.media, this.player.config.events.concat([
-            'keyup',
-            'keydown',
-        ]).join(' '), event => {
-            let detail = {};
+        const proxyEvents = this.player.config.events.concat(['keyup', 'keydown']).join(' ');
+        on.call(this.player, this.player.media, proxyEvents, event => {
+            let { detail = {} } = event;
 
             // Get error details from media
             if (event.type === 'error') {
                 detail = this.player.media.error;
             }
 
-            utils.dispatchEvent.call(this.player, this.player.elements.container, event.type, true, detail);
+            triggerEvent.call(this.player, this.player.elements.container, event.type, true, detail);
         });
     }
 
@@ -430,7 +402,7 @@ class Listeners {
         // Run default and custom handlers
         const proxy = (event, defaultHandler, customHandlerKey) => {
             const customHandler = this.player.config.listeners[customHandlerKey];
-            const hasCustomHandler = utils.is.function(customHandler);
+            const hasCustomHandler = is.function(customHandler);
             let returned = true;
 
             // Execute custom handler
@@ -439,33 +411,41 @@ class Listeners {
             }
 
             // Only call default handler if not prevented in custom handler
-            if (returned && utils.is.function(defaultHandler)) {
+            if (returned && is.function(defaultHandler)) {
                 defaultHandler.call(this.player, event);
             }
         };
 
         // Trigger custom and default handlers
-        const on = (element, type, defaultHandler, customHandlerKey, passive = true) => {
+        const bind = (element, type, defaultHandler, customHandlerKey, passive = true) => {
             const customHandler = this.player.config.listeners[customHandlerKey];
-            const hasCustomHandler = utils.is.function(customHandler);
+            const hasCustomHandler = is.function(customHandler);
 
-            utils.on(element, type, event => proxy(event, defaultHandler, customHandlerKey), passive && !hasCustomHandler);
+            on.call(
+                this.player,
+                element,
+                type,
+                event => proxy(event, defaultHandler, customHandlerKey),
+                passive && !hasCustomHandler,
+            );
         };
 
         // Play/pause toggle
-        on(this.player.elements.buttons.play, 'click', this.player.togglePlay, 'play');
+        Array.from(this.player.elements.buttons.play).forEach(button => {
+            bind(button, 'click', this.player.togglePlay, 'play');
+        });
 
         // Pause
-        on(this.player.elements.buttons.restart, 'click', this.player.restart, 'restart');
+        bind(this.player.elements.buttons.restart, 'click', this.player.restart, 'restart');
 
         // Rewind
-        on(this.player.elements.buttons.rewind, 'click', this.player.rewind, 'rewind');
+        bind(this.player.elements.buttons.rewind, 'click', this.player.rewind, 'rewind');
 
         // Rewind
-        on(this.player.elements.buttons.fastForward, 'click', this.player.forward, 'fastForward');
+        bind(this.player.elements.buttons.fastForward, 'click', this.player.forward, 'fastForward');
 
         // Mute toggle
-        on(
+        bind(
             this.player.elements.buttons.mute,
             'click',
             () => {
@@ -475,10 +455,10 @@ class Listeners {
         );
 
         // Captions toggle
-        on(this.player.elements.buttons.captions, 'click', this.player.toggleCaptions);
+        bind(this.player.elements.buttons.captions, 'click', () => this.player.toggleCaptions());
 
         // Fullscreen toggle
-        on(
+        bind(
             this.player.elements.buttons.fullscreen,
             'click',
             () => {
@@ -488,7 +468,7 @@ class Listeners {
         );
 
         // Picture-in-Picture
-        on(
+        bind(
             this.player.elements.buttons.pip,
             'click',
             () => {
@@ -498,15 +478,15 @@ class Listeners {
         );
 
         // Airplay
-        on(this.player.elements.buttons.airplay, 'click', this.player.airplay, 'airplay');
+        bind(this.player.elements.buttons.airplay, 'click', this.player.airplay, 'airplay');
 
         // Settings menu
-        on(this.player.elements.buttons.settings, 'click', event => {
+        bind(this.player.elements.buttons.settings, 'click', event => {
             controls.toggleMenu.call(this.player, event);
         });
 
         // Settings menu
-        on(this.player.elements.settings.form, 'click', event => {
+        bind(this.player.elements.settings.form, 'click', event => {
             event.stopPropagation();
 
             // Go back to home tab on click
@@ -516,16 +496,16 @@ class Listeners {
             };
 
             // Settings menu items - use event delegation as items are added/removed
-            if (utils.matches(event.target, this.player.config.selectors.inputs.language)) {
+            if (matches(event.target, this.player.config.selectors.inputs.language)) {
                 proxy(
                     event,
                     () => {
-                        this.player.language = event.target.value;
+                        this.player.currentTrack = Number(event.target.value);
                         showHomeTab();
                     },
                     'language',
                 );
-            } else if (utils.matches(event.target, this.player.config.selectors.inputs.quality)) {
+            } else if (matches(event.target, this.player.config.selectors.inputs.quality)) {
                 proxy(
                     event,
                     () => {
@@ -534,7 +514,7 @@ class Listeners {
                     },
                     'quality',
                 );
-            } else if (utils.matches(event.target, this.player.config.selectors.inputs.speed)) {
+            } else if (matches(event.target, this.player.config.selectors.inputs.speed)) {
                 proxy(
                     event,
                     () => {
@@ -550,25 +530,27 @@ class Listeners {
         });
 
         // Set range input alternative "value", which matches the tooltip time (#954)
-        on(this.player.elements.inputs.seek, 'mousedown mousemove', event => {
+        bind(this.player.elements.inputs.seek, 'mousedown mousemove', event => {
             const clientRect = this.player.elements.progress.getBoundingClientRect();
             const percent = 100 / clientRect.width * (event.pageX - clientRect.left);
             event.currentTarget.setAttribute('seek-value', percent);
         });
 
         // Pause while seeking
-        on(this.player.elements.inputs.seek, 'mousedown mouseup keydown keyup touchstart touchend', event => {
+        bind(this.player.elements.inputs.seek, 'mousedown mouseup keydown keyup touchstart touchend', event => {
             const seek = event.currentTarget;
 
+            const code = event.keyCode ? event.keyCode : event.which;
+            const eventType = event.type;
+
+            if ((eventType === 'keydown' || eventType === 'keyup') && (code !== 39 && code !== 37)) {
+                return;
+            }
             // Was playing before?
             const play = seek.hasAttribute('play-on-seeked');
 
             // Done seeking
-            const done = [
-                'mouseup',
-                'touchend',
-                'keyup',
-            ].includes(event.type);
+            const done = ['mouseup', 'touchend', 'keyup'].includes(event.type);
 
             // If we're done seeking and it was playing, resume playback
             if (play && done) {
@@ -581,7 +563,7 @@ class Listeners {
         });
 
         // Seek
-        on(
+        bind(
             this.player.elements.inputs.seek,
             inputEvent,
             event => {
@@ -590,7 +572,7 @@ class Listeners {
                 // If it exists, use seek-value instead of "value" for consistency with tooltip time (#954)
                 let seekTo = seek.getAttribute('seek-value');
 
-                if (utils.is.empty(seekTo)) {
+                if (is.empty(seekTo)) {
                     seekTo = seek.value;
                 }
 
@@ -603,8 +585,8 @@ class Listeners {
 
         // Current time invert
         // Only if one time element is used for both currentTime and duration
-        if (this.player.config.toggleInvert && !utils.is.element(this.player.elements.display.duration)) {
-            on(this.player.elements.display.currentTime, 'click', () => {
+        if (this.player.config.toggleInvert && !is.element(this.player.elements.display.duration)) {
+            bind(this.player.elements.display.currentTime, 'click', () => {
                 // Do nothing if we're at the start
                 if (this.player.currentTime === 0) {
                     return;
@@ -617,7 +599,7 @@ class Listeners {
         }
 
         // Volume
-        on(
+        bind(
             this.player.elements.inputs.volume,
             inputEvent,
             event => {
@@ -628,33 +610,32 @@ class Listeners {
 
         // Polyfill for lower fill in <input type="range"> for webkit
         if (browser.isWebkit) {
-            on(utils.getElements.call(this.player, 'input[type="range"]'), 'input', event => {
-                controls.updateRangeFill.call(this.player, event.target);
+            Array.from(getElements.call(this.player, 'input[type="range"]')).forEach(element => {
+                bind(element, 'input', event => controls.updateRangeFill.call(this.player, event.target));
             });
         }
 
         // Seek tooltip
-        on(this.player.elements.progress, 'mouseenter mouseleave mousemove', event => controls.updateSeekTooltip.call(this.player, event));
+        bind(this.player.elements.progress, 'mouseenter mouseleave mousemove', event =>
+            controls.updateSeekTooltip.call(this.player, event),
+        );
 
         // Update controls.hover state (used for ui.toggleControls to avoid hiding when interacting)
-        on(this.player.elements.controls, 'mouseenter mouseleave', event => {
+        bind(this.player.elements.controls, 'mouseenter mouseleave', event => {
             this.player.elements.controls.hover = !this.player.touch && event.type === 'mouseenter';
         });
 
         // Update controls.pressed state (used for ui.toggleControls to avoid hiding when interacting)
-        on(this.player.elements.controls, 'mousedown mouseup touchstart touchend touchcancel', event => {
-            this.player.elements.controls.pressed = [
-                'mousedown',
-                'touchstart',
-            ].includes(event.type);
+        bind(this.player.elements.controls, 'mousedown mouseup touchstart touchend touchcancel', event => {
+            this.player.elements.controls.pressed = ['mousedown', 'touchstart'].includes(event.type);
         });
 
         // Focus in/out on controls
-        on(this.player.elements.controls, 'focusin focusout', event => {
+        bind(this.player.elements.controls, 'focusin focusout', event => {
             const { config, elements, timers } = this.player;
 
             // Skip transition to prevent focus from scrolling the parent element
-            utils.toggleClass(elements.controls, config.classNames.noTransition, event.type === 'focusin');
+            toggleClass(elements.controls, config.classNames.noTransition, event.type === 'focusin');
 
             // Toggle
             ui.toggleControls.call(this.player, event.type === 'focusin');
@@ -663,7 +644,7 @@ class Listeners {
             if (event.type === 'focusin') {
                 // Restore transition
                 setTimeout(() => {
-                    utils.toggleClass(elements.controls, config.classNames.noTransition, false);
+                    toggleClass(elements.controls, config.classNames.noTransition, false);
                 }, 0);
 
                 // Delay a little more for keyboard users
@@ -677,7 +658,7 @@ class Listeners {
         });
 
         // Mouse wheel for volume
-        on(
+        bind(
             this.player.elements.inputs.volume,
             'wheel',
             event => {
@@ -710,7 +691,10 @@ class Listeners {
                 }
 
                 // Don't break page scrolling at max and min
-                if ((direction === 1 && this.player.media.volume < 1) || (direction === -1 && this.player.media.volume > 0)) {
+                if (
+                    (direction === 1 && this.player.media.volume < 1) ||
+                    (direction === -1 && this.player.media.volume > 0)
+                ) {
                     event.preventDefault();
                 }
             },
@@ -718,11 +702,6 @@ class Listeners {
             false,
         );
     }
-
-    // Reset on destroy
-    clear() {
-        this.global(false);
-    }
 }
 
 export default Listeners;

src/js/media.js

@@ -5,7 +5,7 @@
 import html5 from './html5';
 import vimeo from './plugins/vimeo';
 import youtube from './plugins/youtube';
-import utils from './utils';
+import { createElement, toggleClass, wrap } from './utils/elements';
 
 const media = {
     // Setup media
@@ -17,50 +17,41 @@ const media = {
         }
 
         // Add type class
-        utils.toggleClass(this.elements.container, this.config.classNames.type.replace('{0}', this.type), true);
+        toggleClass(this.elements.container, this.config.classNames.type.replace('{0}', this.type), true);
 
         // Add provider class
-        utils.toggleClass(this.elements.container, this.config.classNames.provider.replace('{0}', this.provider), true);
+        toggleClass(this.elements.container, this.config.classNames.provider.replace('{0}', this.provider), true);
 
         // Add video class for embeds
         // This will require changes if audio embeds are added
         if (this.isEmbed) {
-            utils.toggleClass(this.elements.container, this.config.classNames.type.replace('{0}', 'video'), true);
+            toggleClass(this.elements.container, this.config.classNames.type.replace('{0}', 'video'), true);
         }
 
         // Inject the player wrapper
         if (this.isVideo) {
             // Create the wrapper div
-            this.elements.wrapper = utils.createElement('div', {
+            this.elements.wrapper = createElement('div', {
                 class: this.config.classNames.video,
             });
 
             // Wrap the video in a container
-            utils.wrap(this.media, this.elements.wrapper);
+            wrap(this.media, this.elements.wrapper);
 
             // Faux poster container
-            this.elements.poster = utils.createElement('div', {
+            this.elements.poster = createElement('div', {
                 class: this.config.classNames.poster,
             });
 
             this.elements.wrapper.appendChild(this.elements.poster);
         }
 
-        if (this.isEmbed) {
-            switch (this.provider) {
-                case 'youtube':
-                    youtube.setup.call(this);
-                    break;
-
-                case 'vimeo':
-                    vimeo.setup.call(this);
-                    break;
-
-                default:
-                    break;
-            }
-        } else if (this.isHTML5) {
+        if (this.isHTML5) {
             html5.extend.call(this);
+        } else if (this.isYouTube) {
+            youtube.setup.call(this);
+        } else if (this.isVimeo) {
+            vimeo.setup.call(this);
         }
     },
 };

src/js/plugins/ads.js

@@ -7,7 +7,12 @@
 /* global google */
 
 import i18n from '../i18n';
-import utils from '../utils';
+import { createElement } from './../utils/elements';
+import { triggerEvent } from './../utils/events';
+import is from './../utils/is';
+import loadScript from './../utils/loadScript';
+import { formatTime } from './../utils/time';
+import { buildUrlParams } from './../utils/urls';
 
 class Ads {
     /**
@@ -44,7 +49,7 @@ class Ads {
     }
 
     get enabled() {
-        return this.player.isVideo && this.player.config.ads.enabled && !utils.is.empty(this.publisherId);
+        return this.player.isVideo && this.player.config.ads.enabled && !is.empty(this.publisherId);
     }
 
     /**
@@ -53,9 +58,8 @@ class Ads {
     load() {
         if (this.enabled) {
             // Check if the Google IMA3 SDK is loaded or load it ourselves
-            if (!utils.is.object(window.google) || !utils.is.object(window.google.ima)) {
-                utils
-                    .loadScript(this.player.config.urls.googleIMA.sdk)
+            if (!is.object(window.google) || !is.object(window.google.ima)) {
+                loadScript(this.player.config.urls.googleIMA.sdk)
                     .then(() => {
                         this.ready();
                     })
@@ -103,7 +107,7 @@ class Ads {
 
         const base = 'https://go.aniview.com/api/adserver6/vast/';
 
-        return `${base}?${utils.buildUrlParams(params)}`;
+        return `${base}?${buildUrlParams(params)}`;
     }
 
     /**
@@ -116,7 +120,7 @@ class Ads {
      */
     setupIMA() {
         // Create the container for our advertisements
-        this.elements.container = utils.createElement('div', {
+        this.elements.container = createElement('div', {
             class: this.player.config.classNames.ads,
         });
         this.player.elements.container.appendChild(this.elements.container);
@@ -146,7 +150,11 @@ class Ads {
             this.loader = new google.ima.AdsLoader(this.elements.displayContainer);
 
             // Listen and respond to ads loaded and error events
-            this.loader.addEventListener(google.ima.AdsManagerLoadedEvent.Type.ADS_MANAGER_LOADED, event => this.onAdsManagerLoaded(event), false);
+            this.loader.addEventListener(
+                google.ima.AdsManagerLoadedEvent.Type.ADS_MANAGER_LOADED,
+                event => this.onAdsManagerLoaded(event),
+                false,
+            );
             this.loader.addEventListener(google.ima.AdErrorEvent.Type.AD_ERROR, error => this.onAdError(error), false);
 
             // Request video ads
@@ -184,7 +192,7 @@ class Ads {
         }
 
         const update = () => {
-            const time = utils.formatTime(Math.max(this.manager.getRemainingTime(), 0));
+            const time = formatTime(Math.max(this.manager.getRemainingTime(), 0));
             const label = `${i18n.get('advertisement', this.player.config)} - ${time}`;
             this.elements.container.setAttribute('data-badge-text', label);
         };
@@ -212,14 +220,14 @@ class Ads {
         this.cuePoints = this.manager.getCuePoints();
 
         // Add advertisement cue's within the time line if available
-        if (!utils.is.empty(this.cuePoints)) {
+        if (!is.empty(this.cuePoints)) {
             this.cuePoints.forEach(cuePoint => {
                 if (cuePoint !== 0 && cuePoint !== -1 && cuePoint < this.player.duration) {
                     const seekElement = this.player.elements.progress;
 
-                    if (utils.is.element(seekElement)) {
+                    if (is.element(seekElement)) {
                         const cuePercentage = 100 / this.player.duration * cuePoint;
-                        const cue = utils.createElement('span', {
+                        const cue = createElement('span', {
                             class: this.player.config.classNames.cues,
                         });
 
@@ -266,7 +274,7 @@ class Ads {
         // Proxy event
         const dispatchEvent = type => {
             const event = `ads${type.replace(/_/g, '').toLowerCase()}`;
-            utils.dispatchEvent.call(this.player, this.player.media, event);
+            triggerEvent.call(this.player, this.player.media, event);
         };
 
         switch (event.type) {
@@ -393,7 +401,7 @@ class Ads {
         this.player.on('seeked', () => {
             const seekedTime = this.player.currentTime;
 
-            if (utils.is.empty(this.cuePoints)) {
+            if (is.empty(this.cuePoints)) {
                 return;
             }
 
@@ -530,9 +538,9 @@ class Ads {
     trigger(event, ...args) {
         const handlers = this.events[event];
 
-        if (utils.is.array(handlers)) {
+        if (is.array(handlers)) {
             handlers.forEach(handler => {
-                if (utils.is.function(handler)) {
+                if (is.function(handler)) {
                     handler.apply(this, args);
                 }
             });
@@ -546,7 +554,7 @@ class Ads {
      * @return {Ads}
      */
     on(event, callback) {
-        if (!utils.is.array(this.events[event])) {
+        if (!is.array(this.events[event])) {
             this.events[event] = [];
         }
 
@@ -577,7 +585,7 @@ class Ads {
      * @param {string} from
      */
     clearSafetyTimer(from) {
-        if (!utils.is.nullOrUndefined(this.safetyTimer)) {
+        if (!is.nullOrUndefined(this.safetyTimer)) {
             this.player.debug.log(`Safety timer cleared from: ${from}`);
 
             clearTimeout(this.safetyTimer);

src/js/plugins/vimeo.js

@@ -5,28 +5,57 @@
 import captions from './../captions';
 import controls from './../controls';
 import ui from './../ui';
-import utils from './../utils';
+import { createElement, replaceElement, toggleClass } from './../utils/elements';
+import { triggerEvent } from './../utils/events';
+import fetch from './../utils/fetch';
+import is from './../utils/is';
+import loadScript from './../utils/loadScript';
+import { format, stripHTML } from './../utils/strings';
+import { buildUrlParams } from './../utils/urls';
+
+// Parse Vimeo ID from URL
+function parseId(url) {
+    if (is.empty(url)) {
+        return null;
+    }
+
+    if (is.number(Number(url))) {
+        return url;
+    }
+
+    const regex = /^.*(vimeo.com\/|video\/)(\d+).*/;
+    return url.match(regex) ? RegExp.$2 : url;
+}
+
+// Get aspect ratio for dimensions
+function getAspectRatio(width, height) {
+    const getRatio = (w, h) => (h === 0 ? w : getRatio(h, w % h));
+    const ratio = getRatio(width, height);
+    return `${width / ratio}:${height / ratio}`;
+}
 
 // Set playback state and trigger change (only on actual change)
 function assurePlaybackState(play) {
+    if (play && !this.embed.hasPlayed) {
+        this.embed.hasPlayed = true;
+    }
     if (this.media.paused === play) {
         this.media.paused = !play;
-        utils.dispatchEvent.call(this, this.media, play ? 'play' : 'pause');
+        triggerEvent.call(this, this.media, play ? 'play' : 'pause');
     }
 }
 
 const vimeo = {
     setup() {
         // Add embed class for responsive
-        utils.toggleClass(this.elements.wrapper, this.config.classNames.embed, true);
+        toggleClass(this.elements.wrapper, this.config.classNames.embed, true);
 
         // Set intial ratio
         vimeo.setAspectRatio.call(this);
 
         // Load the API if not already
-        if (!utils.is.object(window.Vimeo)) {
-            utils
-                .loadScript(this.config.urls.vimeo.sdk)
+        if (!is.object(window.Vimeo)) {
+            loadScript(this.config.urls.vimeo.sdk)
                 .then(() => {
                     vimeo.ready.call(this);
                 })
@@ -41,8 +70,8 @@ const vimeo = {
     // Set aspect ratio
     // For Vimeo we have an extra 300% height <div> to hide the standard controls and UI
     setAspectRatio(input) {
-        const ratio = utils.is.string(input) ? input.split(':') : this.config.ratio.split(':');
-        const padding = 100 / ratio[0] * ratio[1];
+        const [x, y] = (is.string(input) ? input : this.config.ratio).split(':');
+        const padding = 100 / x * y;
         this.elements.wrapper.style.paddingBottom = `${padding}%`;
 
         if (this.supported.ui) {
@@ -70,34 +99,37 @@ const vimeo = {
             gesture: 'media',
             playsinline: !this.config.fullscreen.iosNative,
         };
-        const params = utils.buildUrlParams(options);
+        const params = buildUrlParams(options);
 
         // Get the source URL or ID
         let source = player.media.getAttribute('src');
 
         // Get from <div> if needed
-        if (utils.is.empty(source)) {
+        if (is.empty(source)) {
             source = player.media.getAttribute(player.config.attributes.embed.id);
         }
 
-        const id = utils.parseVimeoId(source);
+        const id = parseId(source);
 
         // Build an iframe
-        const iframe = utils.createElement('iframe');
-        const src = utils.format(player.config.urls.vimeo.iframe, id, params);
+        const iframe = createElement('iframe');
+        const src = format(player.config.urls.vimeo.iframe, id, params);
         iframe.setAttribute('src', src);
         iframe.setAttribute('allowfullscreen', '');
         iframe.setAttribute('allowtransparency', '');
         iframe.setAttribute('allow', 'autoplay');
 
+        // Get poster, if already set
+        const { poster } = player;
+
         // Inject the package
-        const wrapper = utils.createElement('div', { class: player.config.classNames.embedContainer });
+        const wrapper = createElement('div', { poster, class: player.config.classNames.embedContainer });
         wrapper.appendChild(iframe);
-        player.media = utils.replaceElement(wrapper, player.media);
+        player.media = replaceElement(wrapper, player.media);
 
         // Get poster image
-        utils.fetch(utils.format(player.config.urls.vimeo.api, id), 'json').then(response => {
-            if (utils.is.empty(response)) {
+        fetch(format(player.config.urls.vimeo.api, id), 'json').then(response => {
+            if (is.empty(response)) {
                 return;
             }
 
@@ -108,7 +140,7 @@ const vimeo = {
             url.pathname = `${url.pathname.split('_')[0]}.jpg`;
 
             // Set and show poster
-            ui.setPoster.call(player, url.href);
+            ui.setPoster.call(player, url.href).catch(() => {});
         });
 
         // Setup instance
@@ -153,19 +185,20 @@ const vimeo = {
 
                 // Get current paused state and volume etc
                 const { embed, media, paused, volume } = player;
+                const restorePause = paused && !embed.hasPlayed;
 
                 // Set seeking state and trigger event
                 media.seeking = true;
-                utils.dispatchEvent.call(player, media, 'seeking');
+                triggerEvent.call(player, media, 'seeking');
 
                 // If paused, mute until seek is complete
-                Promise.resolve(paused && embed.setVolume(0))
+                Promise.resolve(restorePause && embed.setVolume(0))
                     // Seek
                     .then(() => embed.setCurrentTime(time))
                     // Restore paused
-                    .then(() => paused && embed.pause())
+                    .then(() => restorePause && embed.pause())
                     // Restore volume
-                    .then(() => paused && embed.setVolume(volume))
+                    .then(() => restorePause && embed.setVolume(volume))
                     .catch(() => {
                         // Do nothing
                     });
@@ -183,7 +216,7 @@ const vimeo = {
                     .setPlaybackRate(input)
                     .then(() => {
                         speed = input;
-                        utils.dispatchEvent.call(player, player.media, 'ratechange');
+                        triggerEvent.call(player, player.media, 'ratechange');
                     })
                     .catch(error => {
                         // Hide menu item (and menu if empty)
@@ -203,7 +236,7 @@ const vimeo = {
             set(input) {
                 player.embed.setVolume(input).then(() => {
                     volume = input;
-                    utils.dispatchEvent.call(player, player.media, 'volumechange');
+                    triggerEvent.call(player, player.media, 'volumechange');
                 });
             },
         });
@@ -215,11 +248,11 @@ const vimeo = {
                 return muted;
             },
             set(input) {
-                const toggle = utils.is.boolean(input) ? input : false;
+                const toggle = is.boolean(input) ? input : false;
 
                 player.embed.setVolume(toggle ? 0 : player.config.volume).then(() => {
                     muted = toggle;
-                    utils.dispatchEvent.call(player, player.media, 'volumechange');
+                    triggerEvent.call(player, player.media, 'volumechange');
                 });
             },
         });
@@ -231,7 +264,7 @@ const vimeo = {
                 return loop;
             },
             set(input) {
-                const toggle = utils.is.boolean(input) ? input : player.config.loop.active;
+                const toggle = is.boolean(input) ? input : player.config.loop.active;
 
                 player.embed.setLoop(toggle).then(() => {
                     loop = toggle;
@@ -264,11 +297,8 @@ const vimeo = {
         });
 
         // Set aspect ratio based on video size
-        Promise.all([
-            player.embed.getVideoWidth(),
-            player.embed.getVideoHeight(),
-        ]).then(dimensions => {
-            const ratio = utils.getAspectRatio(dimensions[0], dimensions[1]);
+        Promise.all([player.embed.getVideoWidth(), player.embed.getVideoHeight()]).then(dimensions => {
+            const ratio = getAspectRatio(dimensions[0], dimensions[1]);
             vimeo.setAspectRatio.call(this, ratio);
         });
 
@@ -286,13 +316,13 @@ const vimeo = {
         // Get current time
         player.embed.getCurrentTime().then(value => {
             currentTime = value;
-            utils.dispatchEvent.call(player, player.media, 'timeupdate');
+            triggerEvent.call(player, player.media, 'timeupdate');
         });
 
         // Get duration
         player.embed.getDuration().then(value => {
             player.media.duration = value;
-            utils.dispatchEvent.call(player, player.media, 'durationchange');
+            triggerEvent.call(player, player.media, 'durationchange');
         });
 
         // Get captions
@@ -301,18 +331,21 @@ const vimeo = {
             captions.setup.call(player);
         });
 
-        player.embed.on('cuechange', data => {
-            let cue = null;
-
-            if (data.cues.length) {
-                cue = utils.stripHTML(data.cues[0].text);
-            }
-
-            captions.setText.call(player, cue);
+        player.embed.on('cuechange', ({ cues = [] }) => {
+            const strippedCues = cues.map(cue => stripHTML(cue.text));
+            captions.updateCues.call(player, strippedCues);
         });
 
         player.embed.on('loaded', () => {
-            if (utils.is.element(player.embed.element) && player.supported.ui) {
+            // Assure state and events are updated on autoplay
+            player.embed.getPaused().then(paused => {
+                assurePlaybackState.call(player, !paused);
+                if (!paused) {
+                    triggerEvent.call(player, player.media, 'playing');
+                }
+            });
+
+            if (is.element(player.embed.element) && player.supported.ui) {
                 const frame = player.embed.element;
 
                 // Fix keyboard focus issues
@@ -323,7 +356,7 @@ const vimeo = {
 
         player.embed.on('play', () => {
             assurePlaybackState.call(player, true);
-            utils.dispatchEvent.call(player, player.media, 'playing');
+            triggerEvent.call(player, player.media, 'playing');
         });
 
         player.embed.on('pause', () => {
@@ -333,16 +366,16 @@ const vimeo = {
         player.embed.on('timeupdate', data => {
             player.media.seeking = false;
             currentTime = data.seconds;
-            utils.dispatchEvent.call(player, player.media, 'timeupdate');
+            triggerEvent.call(player, player.media, 'timeupdate');
         });
 
         player.embed.on('progress', data => {
             player.media.buffered = data.percent;
-            utils.dispatchEvent.call(player, player.media, 'progress');
+            triggerEvent.call(player, player.media, 'progress');
 
             // Check all loaded
             if (parseInt(data.percent, 10) === 1) {
-                utils.dispatchEvent.call(player, player.media, 'canplaythrough');
+                triggerEvent.call(player, player.media, 'canplaythrough');
             }
 
             // Get duration as if we do it before load, it gives an incorrect value
@@ -350,24 +383,24 @@ const vimeo = {
             player.embed.getDuration().then(value => {
                 if (value !== player.media.duration) {
                     player.media.duration = value;
-                    utils.dispatchEvent.call(player, player.media, 'durationchange');
+                    triggerEvent.call(player, player.media, 'durationchange');
                 }
             });
         });
 
         player.embed.on('seeked', () => {
             player.media.seeking = false;
-            utils.dispatchEvent.call(player, player.media, 'seeked');
+            triggerEvent.call(player, player.media, 'seeked');
         });
 
         player.embed.on('ended', () => {
             player.media.paused = true;
-            utils.dispatchEvent.call(player, player.media, 'ended');
+            triggerEvent.call(player, player.media, 'ended');
         });
 
         player.embed.on('error', detail => {
             player.media.error = detail;
-            utils.dispatchEvent.call(player, player.media, 'error');
+            triggerEvent.call(player, player.media, 'error');
         });
 
         // Rebuild UI

src/js/plugins/youtube.js

@@ -4,88 +4,81 @@
 
 import controls from './../controls';
 import ui from './../ui';
-import utils from './../utils';
+import { dedupe } from './../utils/arrays';
+import { createElement, replaceElement, toggleClass } from './../utils/elements';
+import { triggerEvent } from './../utils/events';
+import fetch from './../utils/fetch';
+import is from './../utils/is';
+import loadImage from './../utils/loadImage';
+import loadScript from './../utils/loadScript';
+import { format, generateId } from './../utils/strings';
+
+// Parse YouTube ID from URL
+function parseId(url) {
+    if (is.empty(url)) {
+        return null;
+    }
+
+    const regex = /^.*(youtu.be\/|v\/|u\/\w\/|embed\/|watch\?v=|&v=)([^#&?]*).*/;
+    return url.match(regex) ? RegExp.$2 : url;
+}
 
 // Standardise YouTube quality unit
 function mapQualityUnit(input) {
-    switch (input) {
-        case 'hd2160':
-            return 2160;
+    const qualities = {
+        hd2160: 2160,
+        hd1440: 1440,
+        hd1080: 1080,
+        hd720: 720,
+        large: 480,
+        medium: 360,
+        small: 240,
+        tiny: 144,
+    };
 
-        case 2160:
-            return 'hd2160';
+    const entry = Object.entries(qualities).find(entry => entry.includes(input));
 
-        case 'hd1440':
-            return 1440;
-
-        case 1440:
-            return 'hd1440';
-
-        case 'hd1080':
-            return 1080;
-
-        case 1080:
-            return 'hd1080';
-
-        case 'hd720':
-            return 720;
-
-        case 720:
-            return 'hd720';
-
-        case 'large':
-            return 480;
-
-        case 480:
-            return 'large';
-
-        case 'medium':
-            return 360;
-
-        case 360:
-            return 'medium';
-
-        case 'small':
-            return 240;
-
-        case 240:
-            return 'small';
-
-        default:
-            return 'default';
+    if (entry) {
+        // Get the match corresponding to the input
+        return entry.find(value => value !== input);
     }
+
+    return 'default';
 }
 
 function mapQualityUnits(levels) {
-    if (utils.is.empty(levels)) {
+    if (is.empty(levels)) {
         return levels;
     }
 
-    return utils.dedupe(levels.map(level => mapQualityUnit(level)));
+    return dedupe(levels.map(level => mapQualityUnit(level)));
 }
 
 // Set playback state and trigger change (only on actual change)
 function assurePlaybackState(play) {
+    if (play && !this.embed.hasPlayed) {
+        this.embed.hasPlayed = true;
+    }
     if (this.media.paused === play) {
         this.media.paused = !play;
-        utils.dispatchEvent.call(this, this.media, play ? 'play' : 'pause');
+        triggerEvent.call(this, this.media, play ? 'play' : 'pause');
     }
 }
 
 const youtube = {
     setup() {
         // Add embed class for responsive
-        utils.toggleClass(this.elements.wrapper, this.config.classNames.embed, true);
+        toggleClass(this.elements.wrapper, this.config.classNames.embed, true);
 
         // Set aspect ratio
         youtube.setAspectRatio.call(this);
 
         // Setup API
-        if (utils.is.object(window.YT) && utils.is.function(window.YT.Player)) {
+        if (is.object(window.YT) && is.function(window.YT.Player)) {
             youtube.ready.call(this);
         } else {
             // Load the API
-            utils.loadScript(this.config.urls.youtube.sdk).catch(error => {
+            loadScript(this.config.urls.youtube.sdk).catch(error => {
                 this.debug.warn('YouTube API failed to load', error);
             });
 
@@ -112,10 +105,10 @@ const youtube = {
         // Try via undocumented API method first
         // This method disappears now and then though...
         // https://github.com/sampotts/plyr/issues/709
-        if (utils.is.function(this.embed.getVideoData)) {
+        if (is.function(this.embed.getVideoData)) {
             const { title } = this.embed.getVideoData();
 
-            if (utils.is.empty(title)) {
+            if (is.empty(title)) {
                 this.config.title = title;
                 ui.setTitle.call(this);
                 return;
@@ -124,13 +117,12 @@ const youtube = {
 
         // Or via Google API
         const key = this.config.keys.google;
-        if (utils.is.string(key) && !utils.is.empty(key)) {
-            const url = utils.format(this.config.urls.youtube.api, videoId, key);
+        if (is.string(key) && !is.empty(key)) {
+            const url = format(this.config.urls.youtube.api, videoId, key);
 
-            utils
-                .fetch(url)
+            fetch(url)
                 .then(result => {
-                    if (utils.is.object(result)) {
+                    if (is.object(result)) {
                         this.config.title = result.items[0].snippet.title;
                         ui.setTitle.call(this);
                     }
@@ -151,7 +143,7 @@ const youtube = {
 
         // Ignore already setup (race condition)
         const currentId = player.media.getAttribute('id');
-        if (!utils.is.empty(currentId) && currentId.startsWith('youtube-')) {
+        if (!is.empty(currentId) && currentId.startsWith('youtube-')) {
             return;
         }
 
@@ -159,30 +151,36 @@ const youtube = {
         let source = player.media.getAttribute('src');
 
         // Get from <div> if needed
-        if (utils.is.empty(source)) {
+        if (is.empty(source)) {
             source = player.media.getAttribute(this.config.attributes.embed.id);
         }
 
         // Replace the <iframe> with a <div> due to YouTube API issues
-        const videoId = utils.parseYouTubeId(source);
-        const id = utils.generateId(player.provider);
-        const container = utils.createElement('div', { id });
-        player.media = utils.replaceElement(container, player.media);
+        const videoId = parseId(source);
+        const id = generateId(player.provider);
 
-        // Set poster image
+        // Get poster, if already set
+        const { poster } = player;
+
+        // Replace media element
+        const container = createElement('div', { id, poster });
+        player.media = replaceElement(container, player.media);
+
+        // Id to poster wrapper
         const posterSrc = format => `https://img.youtube.com/vi/${videoId}/${format}default.jpg`;
 
         // Check thumbnail images in order of quality, but reject fallback thumbnails (120px wide)
-        utils.loadImage(posterSrc('maxres'), 121) // Higest quality and unpadded
-            .catch(() => utils.loadImage(posterSrc('sd'), 121)) // 480p padded 4:3
-            .catch(() => utils.loadImage(posterSrc('hq'))) // 360p padded 4:3. Always exists
+        loadImage(posterSrc('maxres'), 121) // Higest quality and unpadded
+            .catch(() => loadImage(posterSrc('sd'), 121)) // 480p padded 4:3
+            .catch(() => loadImage(posterSrc('hq'))) // 360p padded 4:3. Always exists
             .then(image => ui.setPoster.call(player, image.src))
             .then(posterSrc => {
                 // If the image is padded, use background-size "cover" instead (like youtube does too with their posters)
                 if (!posterSrc.includes('maxres')) {
                     player.elements.poster.style.backgroundSize = 'cover';
                 }
-            });
+            })
+            .catch(() => {});
 
         // Setup instance
         // https://developers.google.com/youtube/iframe_api_reference
@@ -208,49 +206,26 @@ const youtube = {
             },
             events: {
                 onError(event) {
-                    // If we've already fired an error, don't do it again
-                    // YouTube fires onError twice
-                    if (utils.is.object(player.media.error)) {
-                        return;
+                    // YouTube may fire onError twice, so only handle it once
+                    if (!player.media.error) {
+                        const code = event.data;
+                        // Messages copied from https://developers.google.com/youtube/iframe_api_reference#onError
+                        const message =
+                            {
+                                2: 'The request contains an invalid parameter value. For example, this error occurs if you specify a video ID that does not have 11 characters, or if the video ID contains invalid characters, such as exclamation points or asterisks.',
+                                5: 'The requested content cannot be played in an HTML5 player or another error related to the HTML5 player has occurred.',
+                                100: 'The video requested was not found. This error occurs when a video has been removed (for any reason) or has been marked as private.',
+                                101: 'The owner of the requested video does not allow it to be played in embedded players.',
+                                150: 'The owner of the requested video does not allow it to be played in embedded players.',
+                            }[code] || 'An unknown error occured';
+
+                        player.media.error = { code, message };
+
+                        triggerEvent.call(player, player.media, 'error');
                     }
-
-                    const detail = {
-                        code: event.data,
-                    };
-
-                    // Messages copied from https://developers.google.com/youtube/iframe_api_reference#onError
-                    switch (event.data) {
-                        case 2:
-                            detail.message =
-                                'The request contains an invalid parameter value. For example, this error occurs if you specify a video ID that does not have 11 characters, or if the video ID contains invalid characters, such as exclamation points or asterisks.';
-                            break;
-
-                        case 5:
-                            detail.message =
-                                'The requested content cannot be played in an HTML5 player or another error related to the HTML5 player has occurred.';
-                            break;
-
-                        case 100:
-                            detail.message =
-                                'The video requested was not found. This error occurs when a video has been removed (for any reason) or has been marked as private.';
-                            break;
-
-                        case 101:
-                        case 150:
-                            detail.message = 'The owner of the requested video does not allow it to be played in embedded players.';
-                            break;
-
-                        default:
-                            detail.message = 'An unknown error occured';
-                            break;
-                    }
-
-                    player.media.error = detail;
-
-                    utils.dispatchEvent.call(player, player.media, 'error');
                 },
                 onPlaybackQualityChange() {
-                    utils.dispatchEvent.call(player, player.media, 'qualitychange', false, {
+                    triggerEvent.call(player, player.media, 'qualitychange', false, {
                         quality: player.media.quality,
                     });
                 },
@@ -261,7 +236,7 @@ const youtube = {
                     // Get current speed
                     player.media.playbackRate = instance.getPlaybackRate();
 
-                    utils.dispatchEvent.call(player, player.media, 'ratechange');
+                    triggerEvent.call(player, player.media, 'ratechange');
                 },
                 onReady(event) {
                     // Get the instance
@@ -295,14 +270,14 @@ const youtube = {
                             return Number(instance.getCurrentTime());
                         },
                         set(time) {
-                            // If paused, mute audio preventively (YouTube starts playing on seek if the video hasn't been played yet).
-                            if (player.paused) {
+                            // If paused and never played, mute audio preventively (YouTube starts playing on seek if the video hasn't been played yet).
+                            if (player.paused && !player.embed.hasPlayed) {
                                 player.embed.mute();
                             }
 
                             // Set seeking state and trigger event
                             player.media.seeking = true;
-                            utils.dispatchEvent.call(player, player.media, 'seeking');
+                            triggerEvent.call(player, player.media, 'seeking');
 
                             // Seek after events sent
                             instance.seekTo(time);
@@ -325,15 +300,7 @@ const youtube = {
                             return mapQualityUnit(instance.getPlaybackQuality());
                         },
                         set(input) {
-                            const quality = input;
-
-                            // Set via API
-                            instance.setPlaybackQuality(mapQualityUnit(quality));
-
-                            // Trigger request event
-                            utils.dispatchEvent.call(player, player.media, 'qualityrequested', false, {
-                                quality,
-                            });
+                            instance.setPlaybackQuality(mapQualityUnit(input));
                         },
                     });
 
@@ -346,7 +313,7 @@ const youtube = {
                         set(input) {
                             volume = input;
                             instance.setVolume(volume * 100);
-                            utils.dispatchEvent.call(player, player.media, 'volumechange');
+                            triggerEvent.call(player, player.media, 'volumechange');
                         },
                     });
 
@@ -357,10 +324,10 @@ const youtube = {
                             return muted;
                         },
                         set(input) {
-                            const toggle = utils.is.boolean(input) ? input : muted;
+                            const toggle = is.boolean(input) ? input : muted;
                             muted = toggle;
                             instance[toggle ? 'mute' : 'unMute']();
-                            utils.dispatchEvent.call(player, player.media, 'volumechange');
+                            triggerEvent.call(player, player.media, 'volumechange');
                         },
                     });
 
@@ -386,8 +353,8 @@ const youtube = {
                         player.media.setAttribute('tabindex', -1);
                     }
 
-                    utils.dispatchEvent.call(player, player.media, 'timeupdate');
-                    utils.dispatchEvent.call(player, player.media, 'durationchange');
+                    triggerEvent.call(player, player.media, 'timeupdate');
+                    triggerEvent.call(player, player.media, 'durationchange');
 
                     // Reset timer
                     clearInterval(player.timers.buffering);
@@ -399,7 +366,7 @@ const youtube = {
 
                         // Trigger progress only when we actually buffer something
                         if (player.media.lastBuffered === null || player.media.lastBuffered < player.media.buffered) {
-                            utils.dispatchEvent.call(player, player.media, 'progress');
+                            triggerEvent.call(player, player.media, 'progress');
                         }
 
                         // Set last buffer point
@@ -410,7 +377,7 @@ const youtube = {
                             clearInterval(player.timers.buffering);
 
                             // Trigger event
-                            utils.dispatchEvent.call(player, player.media, 'canplaythrough');
+                            triggerEvent.call(player, player.media, 'canplaythrough');
                         }
                     }, 200);
 
@@ -424,15 +391,12 @@ const youtube = {
                     // Reset timer
                     clearInterval(player.timers.playing);
 
-                    const seeked = player.media.seeking && [
-                        1,
-                        2,
-                    ].includes(event.data);
+                    const seeked = player.media.seeking && [1, 2].includes(event.data);
 
                     if (seeked) {
                         // Unset seeking and fire seeked event
                         player.media.seeking = false;
-                        utils.dispatchEvent.call(player, player.media, 'seeked');
+                        triggerEvent.call(player, player.media, 'seeked');
                     }
 
                     // Handle events
@@ -445,11 +409,11 @@ const youtube = {
                     switch (event.data) {
                         case -1:
                             // Update scrubber
-                            utils.dispatchEvent.call(player, player.media, 'timeupdate');
+                            triggerEvent.call(player, player.media, 'timeupdate');
 
                             // Get loaded % from YouTube
                             player.media.buffered = instance.getVideoLoadedFraction();
-                            utils.dispatchEvent.call(player, player.media, 'progress');
+                            triggerEvent.call(player, player.media, 'progress');
 
                             break;
 
@@ -462,23 +426,23 @@ const youtube = {
                                 instance.stopVideo();
                                 instance.playVideo();
                             } else {
-                                utils.dispatchEvent.call(player, player.media, 'ended');
+                                triggerEvent.call(player, player.media, 'ended');
                             }
 
                             break;
 
                         case 1:
                             // Restore paused state (YouTube starts playing on seek if the video hasn't been played yet)
-                            if (player.media.paused) {
+                            if (player.media.paused && !player.embed.hasPlayed) {
                                 player.media.pause();
                             } else {
                                 assurePlaybackState.call(player, true);
 
-                                utils.dispatchEvent.call(player, player.media, 'playing');
+                                triggerEvent.call(player, player.media, 'playing');
 
                                 // Poll to get playback progress
                                 player.timers.playing = setInterval(() => {
-                                    utils.dispatchEvent.call(player, player.media, 'timeupdate');
+                                    triggerEvent.call(player, player.media, 'timeupdate');
                                 }, 50);
 
                                 // Check duration again due to YouTube bug
@@ -486,11 +450,14 @@ const youtube = {
                                 // https://code.google.com/p/gdata-issues/issues/detail?id=8690
                                 if (player.media.duration !== instance.getDuration()) {
                                     player.media.duration = instance.getDuration();
-                                    utils.dispatchEvent.call(player, player.media, 'durationchange');
+                                    triggerEvent.call(player, player.media, 'durationchange');
                                 }
 
                                 // Get quality
-                                controls.setQualityMenu.call(player, mapQualityUnits(instance.getAvailableQualityLevels()));
+                                controls.setQualityMenu.call(
+                                    player,
+                                    mapQualityUnits(instance.getAvailableQualityLevels()),
+                                );
                             }
 
                             break;
@@ -508,7 +475,7 @@ const youtube = {
                             break;
                     }
 
-                    utils.dispatchEvent.call(player, player.elements.container, 'statechange', false, {
+                    triggerEvent.call(player, player.elements.container, 'statechange', false, {
                         code: event.data,
                     });
                 },

src/js/plyr.js

@@ -1,14 +1,15 @@
 // ==========================================================================
 // Plyr
-// plyr.js v3.3.8
+// plyr.js v3.3.17
 // https://github.com/sampotts/plyr
 // License: The MIT License (MIT)
 // ==========================================================================
 
 import captions from './captions';
+import defaults from './config/defaults';
+import { getProviderByUrl, providers, types } from './config/types';
 import Console from './console';
 import controls from './controls';
-import defaults from './defaults';
 import Fullscreen from './fullscreen';
 import Listeners from './listeners';
 import media from './media';
@@ -16,9 +17,14 @@ import Ads from './plugins/ads';
 import source from './source';
 import Storage from './storage';
 import support from './support';
-import { providers, types } from './types';
 import ui from './ui';
-import utils from './utils';
+import { closest } from './utils/arrays';
+import { createElement, hasClass, removeElement, replaceElement, toggleClass, wrap } from './utils/elements';
+import { off, on, once, triggerEvent, unbindListeners } from './utils/events';
+import is from './utils/is';
+import loadSprite from './utils/loadSprite';
+import { cloneDeep, extend } from './utils/objects';
+import { parseUrl } from './utils/urls';
 
 // Private properties
 // TODO: Use a WeakMap for private globals
@@ -41,18 +47,18 @@ class Plyr {
         this.media = target;
 
         // String selector passed
-        if (utils.is.string(this.media)) {
+        if (is.string(this.media)) {
             this.media = document.querySelectorAll(this.media);
         }
 
         // jQuery, NodeList or Array passed, use first element
-        if ((window.jQuery && this.media instanceof jQuery) || utils.is.nodeList(this.media) || utils.is.array(this.media)) {
+        if ((window.jQuery && this.media instanceof jQuery) || is.nodeList(this.media) || is.array(this.media)) {
             // eslint-disable-next-line
             this.media = this.media[0];
         }
 
         // Set config
-        this.config = utils.extend(
+        this.config = extend(
             {},
             defaults,
             Plyr.defaults,
@@ -84,7 +90,8 @@ class Plyr {
         // Captions
         this.captions = {
             active: null,
-            currentTrack: null,
+            currentTrack: -1,
+            meta: new WeakMap(),
         };
 
         // Fullscreen
@@ -96,7 +103,6 @@ class Plyr {
         this.options = {
             speed: [],
             quality: [],
-            captions: [],
         };
 
         // Debugging
@@ -108,7 +114,7 @@ class Plyr {
         this.debug.log('Support', support);
 
         // We need an element to setup
-        if (utils.is.nullOrUndefined(this.media) || !utils.is.element(this.media)) {
+        if (is.nullOrUndefined(this.media) || !is.element(this.media)) {
             this.debug.error('Setup failed: no suitable element passed');
             return;
         }
@@ -144,7 +150,6 @@ class Plyr {
         // Embed properties
         let iframe = null;
         let url = null;
-        let params = null;
 
         // Different setup based on type
         switch (type) {
@@ -153,10 +158,10 @@ class Plyr {
                 iframe = this.media.querySelector('iframe');
 
                 // <iframe> type
-                if (utils.is.element(iframe)) {
+                if (is.element(iframe)) {
                     // Detect provider
-                    url = iframe.getAttribute('src');
-                    this.provider = utils.getProviderByUrl(url);
+                    url = parseUrl(iframe.getAttribute('src'));
+                    this.provider = getProviderByUrl(url.toString());
 
                     // Rework elements
                     this.elements.container = this.media;
@@ -166,24 +171,20 @@ class Plyr {
                     this.elements.container.className = '';
 
                     // Get attributes from URL and set config
-                    params = utils.getUrlParams(url);
-                    if (!utils.is.empty(params)) {
-                        const truthy = [
-                            '1',
-                            'true',
-                        ];
+                    if (url.searchParams.length) {
+                        const truthy = ['1', 'true'];
 
-                        if (truthy.includes(params.autoplay)) {
+                        if (truthy.includes(url.searchParams.get('autoplay'))) {
                             this.config.autoplay = true;
                         }
-                        if (truthy.includes(params.loop)) {
+                        if (truthy.includes(url.searchParams.get('loop'))) {
                             this.config.loop.active = true;
                         }
 
                         // TODO: replace fullscreen.iosNative with this playsinline config option
                         // YouTube requires the playsinline in the URL
                         if (this.isYouTube) {
-                            this.config.playsinline = truthy.includes(params.playsinline);
+                            this.config.playsinline = truthy.includes(url.searchParams.get('playsinline'));
                         } else {
                             this.config.playsinline = true;
                         }
@@ -197,7 +198,7 @@ class Plyr {
                 }
 
                 // Unsupported or missing provider
-                if (utils.is.empty(this.provider) || !Object.keys(providers).includes(this.provider)) {
+                if (is.empty(this.provider) || !Object.keys(providers).includes(this.provider)) {
                     this.debug.error('Setup failed: Invalid provider');
                     return;
                 }
@@ -245,6 +246,8 @@ class Plyr {
             return;
         }
 
+        this.eventListeners = [];
+
         // Create listeners
         this.listeners = new Listeners(this);
 
@@ -255,14 +258,11 @@ class Plyr {
         this.media.plyr = this;
 
         // Wrap media
-        if (!utils.is.element(this.elements.container)) {
-            this.elements.container = utils.createElement('div');
-            utils.wrap(this.media, this.elements.container);
+        if (!is.element(this.elements.container)) {
+            this.elements.container = createElement('div');
+            wrap(this.media, this.elements.container);
         }
 
-        // Allow focus to be captured
-        this.elements.container.setAttribute('tabindex', 0);
-
         // Add style hook
         ui.addStyleHook.call(this);
 
@@ -271,7 +271,7 @@ class Plyr {
 
         // Listen for events if debugging
         if (this.config.debug) {
-            utils.on(this.elements.container, this.config.events.join(' '), event => {
+            on.call(this, this.elements.container, this.config.events.join(' '), event => {
                 this.debug.log(`event: ${event.type}`);
             });
         }
@@ -330,7 +330,7 @@ class Plyr {
      * Play the media, or play the advertisement (if they are not blocked)
      */
     play() {
-        if (!utils.is.function(this.media.play)) {
+        if (!is.function(this.media.play)) {
             return null;
         }
 
@@ -342,7 +342,7 @@ class Plyr {
      * Pause the media
      */
     pause() {
-        if (!this.playing || !utils.is.function(this.media.pause)) {
+        if (!this.playing || !is.function(this.media.pause)) {
             return;
         }
 
@@ -383,7 +383,7 @@ class Plyr {
      */
     togglePlay(input) {
         // Toggle based on current state if nothing passed
-        const toggle = utils.is.boolean(input) ? input : !this.playing;
+        const toggle = is.boolean(input) ? input : !this.playing;
 
         if (toggle) {
             this.play();
@@ -399,7 +399,7 @@ class Plyr {
         if (this.isHTML5) {
             this.pause();
             this.restart();
-        } else if (utils.is.function(this.media.stop)) {
+        } else if (is.function(this.media.stop)) {
             this.media.stop();
         }
     }
@@ -416,7 +416,7 @@ class Plyr {
      * @param {number} seekTime - how far to rewind in seconds. Defaults to the config.seekTime
      */
     rewind(seekTime) {
-        this.currentTime = this.currentTime - (utils.is.number(seekTime) ? seekTime : this.config.seekTime);
+        this.currentTime = this.currentTime - (is.number(seekTime) ? seekTime : this.config.seekTime);
     }
 
     /**
@@ -424,7 +424,7 @@ class Plyr {
      * @param {number} seekTime - how far to fast forward in seconds. Defaults to the config.seekTime
      */
     forward(seekTime) {
-        this.currentTime = this.currentTime + (utils.is.number(seekTime) ? seekTime : this.config.seekTime);
+        this.currentTime = this.currentTime + (is.number(seekTime) ? seekTime : this.config.seekTime);
     }
 
     /**
@@ -432,21 +432,16 @@ class Plyr {
      * @param {number} input - where to seek to in seconds. Defaults to 0 (the start)
      */
     set currentTime(input) {
-        let targetTime = 0;
-
-        if (utils.is.number(input)) {
-            targetTime = input;
+        // Bail if media duration isn't available yet
+        if (!this.duration) {
+            return;
         }
 
-        // Normalise targetTime
-        if (targetTime < 0) {
-            targetTime = 0;
-        } else if (targetTime > this.duration) {
-            targetTime = this.duration;
-        }
+        // Validate input
+        const inputIsValid = is.number(input) && input > 0;
 
         // Set
-        this.media.currentTime = targetTime;
+        this.media.currentTime = inputIsValid ? Math.min(input, this.duration) : 0;
 
         // Logging
         this.debug.log(`Seeking to ${this.currentTime} seconds`);
@@ -466,7 +461,7 @@ class Plyr {
         const { buffered } = this.media;
 
         // YouTube / Vimeo return a float between 0-1
-        if (utils.is.number(buffered)) {
+        if (is.number(buffered)) {
             return buffered;
         }
 
@@ -494,11 +489,11 @@ class Plyr {
         // Faux duration set via config
         const fauxDuration = parseFloat(this.config.duration);
 
-        // True duration
-        const realDuration = this.media ? Number(this.media.duration) : 0;
+        // Media duration can be NaN before the media has loaded
+        const duration = (this.media || {}).duration || 0;
 
-        // If custom duration is funky, use regular duration
-        return !Number.isNaN(fauxDuration) ? fauxDuration : realDuration;
+        // If config duration is funky, use regular duration
+        return fauxDuration || duration;
     }
 
     /**
@@ -510,17 +505,17 @@ class Plyr {
         const max = 1;
         const min = 0;
 
-        if (utils.is.string(volume)) {
+        if (is.string(volume)) {
             volume = Number(volume);
         }
 
         // Load volume from storage if no value specified
-        if (!utils.is.number(volume)) {
+        if (!is.number(volume)) {
             volume = this.storage.get('volume');
         }
 
         // Use config if all else fails
-        if (!utils.is.number(volume)) {
+        if (!is.number(volume)) {
             ({ volume } = this.config);
         }
 
@@ -540,7 +535,7 @@ class Plyr {
         this.media.volume = volume;
 
         // If muted, and we're increasing volume manually, reset muted state
-        if (!utils.is.empty(value) && this.muted && volume > 0) {
+        if (!is.empty(value) && this.muted && volume > 0) {
             this.muted = false;
         }
     }
@@ -558,7 +553,7 @@ class Plyr {
      */
     increaseVolume(step) {
         const volume = this.media.muted ? 0 : this.volume;
-        this.volume = volume + (utils.is.number(step) ? step : 1);
+        this.volume = volume + (is.number(step) ? step : 1);
     }
 
     /**
@@ -567,7 +562,7 @@ class Plyr {
      */
     decreaseVolume(step) {
         const volume = this.media.muted ? 0 : this.volume;
-        this.volume = volume - (utils.is.number(step) ? step : 1);
+        this.volume = volume - (is.number(step) ? step : 1);
     }
 
     /**
@@ -578,12 +573,12 @@ class Plyr {
         let toggle = mute;
 
         // Load muted state from storage
-        if (!utils.is.boolean(toggle)) {
+        if (!is.boolean(toggle)) {
             toggle = this.storage.get('muted');
         }
 
         // Use config if all else fails
-        if (!utils.is.boolean(toggle)) {
+        if (!is.boolean(toggle)) {
             toggle = this.config.muted;
         }
 
@@ -629,15 +624,15 @@ class Plyr {
     set speed(input) {
         let speed = null;
 
-        if (utils.is.number(input)) {
+        if (is.number(input)) {
             speed = input;
         }
 
-        if (!utils.is.number(speed)) {
+        if (!is.number(speed)) {
             speed = this.storage.get('speed');
         }
 
-        if (!utils.is.number(speed)) {
+        if (!is.number(speed)) {
             speed = this.config.speed.selected;
         }
 
@@ -674,36 +669,31 @@ class Plyr {
      * @param {number} input - Quality level
      */
     set quality(input) {
-        let quality = null;
+        const config = this.config.quality;
+        const options = this.options.quality;
 
-        if (!utils.is.empty(input)) {
-            quality = Number(input);
-        }
-
-        if (!utils.is.number(quality) || quality === 0) {
-            quality = this.storage.get('quality');
-        }
-
-        if (!utils.is.number(quality)) {
-            quality = this.config.quality.selected;
-        }
-
-        if (!utils.is.number(quality)) {
-            quality = this.config.quality.default;
-        }
-
-        if (!this.options.quality.length) {
+        if (!options.length) {
             return;
         }
 
-        if (!this.options.quality.includes(quality)) {
-            const closest = utils.closest(this.options.quality, quality);
-            this.debug.warn(`Unsupported quality option: ${quality}, using ${closest} instead`);
-            quality = closest;
+        let quality = [
+            !is.empty(input) && Number(input),
+            this.storage.get('quality'),
+            config.selected,
+            config.default,
+        ].find(is.number);
+
+        if (!options.includes(quality)) {
+            const value = closest(options, quality);
+            this.debug.warn(`Unsupported quality option: ${quality}, using ${value} instead`);
+            quality = value;
         }
 
+        // Trigger request event
+        triggerEvent.call(this, this.media, 'qualityrequested', false, { quality });
+
         // Update config
-        this.config.quality.selected = quality;
+        config.selected = quality;
 
         // Set quality
         this.media.quality = quality;
@@ -722,7 +712,7 @@ class Plyr {
      * @param {boolean} input - Whether to loop or not
      */
     set loop(input) {
-        const toggle = utils.is.boolean(input) ? input : this.config.loop.active;
+        const toggle = is.boolean(input) ? input : this.config.loop.active;
         this.config.loop.active = toggle;
         this.media.loop = toggle;
 
@@ -802,7 +792,7 @@ class Plyr {
             return;
         }
 
-        ui.setPoster.call(this, input);
+        ui.setPoster.call(this, input, false).catch(() => {});
     }
 
     /**
@@ -821,7 +811,7 @@ class Plyr {
      * @param {boolean} input - Whether to autoplay or not
      */
     set autoplay(input) {
-        const toggle = utils.is.boolean(input) ? input : this.config.autoplay;
+        const toggle = is.boolean(input) ? input : this.config.autoplay;
         this.config.autoplay = toggle;
     }
 
@@ -837,88 +827,39 @@ class Plyr {
      * @param {boolean} input - Whether to enable captions
      */
     toggleCaptions(input) {
-        // If there's no full support
-        if (!this.supported.ui) {
-            return;
-        }
-
-        // If the method is called without parameter, toggle based on current value
-        const show = utils.is.boolean(input) ? input : !this.elements.container.classList.contains(this.config.classNames.captions.active);
-
-        // Nothing to change...
-        if (this.captions.active === show) {
-            return;
-        }
-
-        // Set global
-        this.captions.active = show;
-
-        // Toggle state
-        utils.toggleState(this.elements.buttons.captions, this.captions.active);
-
-        // Add class hook
-        utils.toggleClass(this.elements.container, this.config.classNames.captions.active, this.captions.active);
-
-        // Trigger an event
-        utils.dispatchEvent.call(this, this.media, this.captions.active ? 'captionsenabled' : 'captionsdisabled');
+        captions.toggle.call(this, input, false);
     }
 
     /**
-     * Set the captions language
+     * Set the caption track by index
+     * @param {number} - Caption index
+     */
+    set currentTrack(input) {
+        captions.set.call(this, input, false);
+    }
+
+    /**
+     * Get the current caption track index (-1 if disabled)
+     */
+    get currentTrack() {
+        const { toggled, currentTrack } = this.captions;
+        return toggled ? currentTrack : -1;
+    }
+
+    /**
+     * Set the wanted language for captions
+     * Since tracks can be added later it won't update the actual caption track until there is a matching track
      * @param {string} - Two character ISO language code (e.g. EN, FR, PT, etc)
      */
     set language(input) {
-        // Nothing specified
-        if (!utils.is.string(input)) {
-            return;
-        }
-
-        // If empty string is passed, assume disable captions
-        if (utils.is.empty(input)) {
-            this.toggleCaptions(false);
-            return;
-        }
-
-        // Normalize
-        const language = input.toLowerCase();
-
-        // Check for support
-        if (!this.options.captions.includes(language)) {
-            this.debug.warn(`Unsupported language option: ${language}`);
-            return;
-        }
-
-        // Ensure captions are enabled
-        this.toggleCaptions(true);
-
-        // Enabled only
-        if (language === 'enabled') {
-            return;
-        }
-
-        // If nothing to change, bail
-        if (this.language === language) {
-            return;
-        }
-
-        // Update config
-        this.captions.language = language;
-
-        // Clear caption
-        captions.setText.call(this, null);
-
-        // Update captions
-        captions.setLanguage.call(this);
-
-        // Trigger an event
-        utils.dispatchEvent.call(this, this.media, 'languagechange');
+        captions.setLanguage.call(this, input, false);
     }
 
     /**
-     * Get the current captions language
+     * Get the current track's language
      */
     get language() {
-        return this.captions.language;
+        return (captions.getCurrentTrack.call(this) || {}).language;
     }
 
     /**
@@ -938,7 +879,7 @@ class Plyr {
         }
 
         // Toggle based on current state if not passed
-        const toggle = utils.is.boolean(input) ? input : this.pip === states.inline;
+        const toggle = is.boolean(input) ? input : this.pip === states.inline;
 
         // Toggle based on current state
         this.media.webkitSetPresentationMode(toggle ? states.pip : states.inline);
@@ -974,22 +915,22 @@ class Plyr {
         // Don't toggle if missing UI support or if it's audio
         if (this.supported.ui && !this.isAudio) {
             // Get state before change
-            const isHidden = utils.hasClass(this.elements.container, this.config.classNames.hideControls);
+            const isHidden = hasClass(this.elements.container, this.config.classNames.hideControls);
 
             // Negate the argument if not undefined since adding the class to hides the controls
             const force = typeof toggle === 'undefined' ? undefined : !toggle;
 
             // Apply and get updated state
-            const hiding = utils.toggleClass(this.elements.container, this.config.classNames.hideControls, force);
+            const hiding = toggleClass(this.elements.container, this.config.classNames.hideControls, force);
 
             // Close menu
-            if (hiding && this.config.controls.includes('settings') && !utils.is.empty(this.config.settings)) {
+            if (hiding && this.config.controls.includes('settings') && !is.empty(this.config.settings)) {
                 controls.toggleMenu.call(this, false);
             }
             // Trigger event on change
             if (hiding !== isHidden) {
                 const eventName = hiding ? 'controlshidden' : 'controlsshown';
-                utils.dispatchEvent.call(this, this.media, eventName);
+                triggerEvent.call(this, this.media, eventName);
             }
             return !hiding;
         }
@@ -1002,16 +943,23 @@ class Plyr {
      * @param {function} callback - Callback for when event occurs
      */
     on(event, callback) {
-        utils.on(this.elements.container, event, callback);
+        on.call(this, this.elements.container, event, callback);
+    }
+    /**
+     * Add event listeners once
+     * @param {string} event - Event type
+     * @param {function} callback - Callback for when event occurs
+     */
+    once(event, callback) {
+        once.call(this, this.elements.container, event, callback);
     }
-
     /**
      * Remove event listeners
      * @param {string} event - Event type
      * @param {function} callback - Callback for when event occurs
      */
     off(event, callback) {
-        utils.off(this.elements.container, event, callback);
+        off(this.elements.container, event, callback);
     }
 
     /**
@@ -1037,10 +985,10 @@ class Plyr {
             if (soft) {
                 if (Object.keys(this.elements).length) {
                     // Remove elements
-                    utils.removeElement(this.elements.buttons.play);
-                    utils.removeElement(this.elements.captions);
-                    utils.removeElement(this.elements.controls);
-                    utils.removeElement(this.elements.wrapper);
+                    removeElement(this.elements.buttons.play);
+                    removeElement(this.elements.captions);
+                    removeElement(this.elements.controls);
+                    removeElement(this.elements.wrapper);
 
                     // Clear for GC
                     this.elements.buttons.play = null;
@@ -1050,21 +998,21 @@ class Plyr {
                 }
 
                 // Callback
-                if (utils.is.function(callback)) {
+                if (is.function(callback)) {
                     callback();
                 }
             } else {
                 // Unbind listeners
-                this.listeners.clear();
+                unbindListeners.call(this);
 
                 // Replace the container with the original element provided
-                utils.replaceElement(this.elements.original, this.elements.container);
+                replaceElement(this.elements.original, this.elements.container);
 
                 // Event
-                utils.dispatchEvent.call(this, this.elements.original, 'destroyed', true);
+                triggerEvent.call(this, this.elements.original, 'destroyed', true);
 
                 // Callback
-                if (utils.is.function(callback)) {
+                if (is.function(callback)) {
                     callback.call(this.elements.original);
                 }
 
@@ -1082,50 +1030,37 @@ class Plyr {
         // Stop playback
         this.stop();
 
-        // Type specific stuff
-        switch (`${this.provider}:${this.type}`) {
-            case 'html5:video':
-            case 'html5:audio':
-                // Clear timeout
-                clearTimeout(this.timers.loading);
+        // Provider specific stuff
+        if (this.isHTML5) {
+            // Clear timeout
+            clearTimeout(this.timers.loading);
 
-                // Restore native video controls
-                ui.toggleNativeControls.call(this, true);
+            // Restore native video controls
+            ui.toggleNativeControls.call(this, true);
 
-                // Clean up
-                done();
+            // Clean up
+            done();
+        } else if (this.isYouTube) {
+            // Clear timers
+            clearInterval(this.timers.buffering);
+            clearInterval(this.timers.playing);
 
-                break;
+            // Destroy YouTube API
+            if (this.embed !== null && is.function(this.embed.destroy)) {
+                this.embed.destroy();
+            }
 
-            case 'youtube:video':
-                // Clear timers
-                clearInterval(this.timers.buffering);
-                clearInterval(this.timers.playing);
+            // Clean up
+            done();
+        } else if (this.isVimeo) {
+            // Destroy Vimeo API
+            // then clean up (wait, to prevent postmessage errors)
+            if (this.embed !== null) {
+                this.embed.unload().then(done);
+            }
 
-                // Destroy YouTube API
-                if (this.embed !== null && utils.is.function(this.embed.destroy)) {
-                    this.embed.destroy();
-                }
-
-                // Clean up
-                done();
-
-                break;
-
-            case 'vimeo:video':
-                // Destroy Vimeo API
-                // then clean up (wait, to prevent postmessage errors)
-                if (this.embed !== null) {
-                    this.embed.unload().then(done);
-                }
-
-                // Vimeo does not always return
-                setTimeout(done, 200);
-
-                break;
-
-            default:
-                break;
+            // Vimeo does not always return
+            setTimeout(done, 200);
         }
     }
 
@@ -1153,7 +1088,7 @@ class Plyr {
      * @param {string} [id] - Unique ID
      */
     static loadSprite(url, id) {
-        return utils.loadSprite(url, id);
+        return loadSprite(url, id);
     }
 
     /**
@@ -1164,15 +1099,15 @@ class Plyr {
     static setup(selector, options = {}) {
         let targets = null;
 
-        if (utils.is.string(selector)) {
+        if (is.string(selector)) {
             targets = Array.from(document.querySelectorAll(selector));
-        } else if (utils.is.nodeList(selector)) {
+        } else if (is.nodeList(selector)) {
             targets = Array.from(selector);
-        } else if (utils.is.array(selector)) {
-            targets = selector.filter(i => utils.is.element(i));
+        } else if (is.array(selector)) {
+            targets = selector.filter(is.element);
         }
 
-        if (utils.is.empty(targets)) {
+        if (is.empty(targets)) {
             return null;
         }
 
@@ -1180,6 +1115,6 @@ class Plyr {
     }
 }
 
-Plyr.defaults = utils.cloneDeep(defaults);
+Plyr.defaults = cloneDeep(defaults);
 
 export default Plyr;

src/js/plyr.polyfilled.js

@@ -1,6 +1,6 @@
 // ==========================================================================
 // Plyr Polyfilled Build
-// plyr.js v3.3.8
+// plyr.js v3.3.17
 // https://github.com/sampotts/plyr
 // License: The MIT License (MIT)
 // ==========================================================================

src/js/source.js

@@ -2,23 +2,25 @@
 // Plyr source update
 // ==========================================================================
 
+import { providers } from './config/types';
 import html5 from './html5';
 import media from './media';
 import support from './support';
-import { providers } from './types';
 import ui from './ui';
-import utils from './utils';
+import { createElement, insertElement, removeElement } from './utils/elements';
+import is from './utils/is';
+import { getDeep } from './utils/objects';
 
 const source = {
     // Add elements to HTML5 media (source, tracks, etc)
     insertElements(type, attributes) {
-        if (utils.is.string(attributes)) {
-            utils.insertElement(type, this.media, {
+        if (is.string(attributes)) {
+            insertElement(type, this.media, {
                 src: attributes,
             });
-        } else if (utils.is.array(attributes)) {
+        } else if (is.array(attributes)) {
             attributes.forEach(attribute => {
-                utils.insertElement(type, this.media, attribute);
+                insertElement(type, this.media, attribute);
             });
         }
     },
@@ -26,7 +28,7 @@ const source = {
     // Update source
     // Sources are not checked for support so be careful
     change(input) {
-        if (!utils.is.object(input) || !('sources' in input) || !input.sources.length) {
+        if (!getDeep(input, 'sources.length')) {
             this.debug.warn('Invalid source format');
             return;
         }
@@ -42,47 +44,34 @@ const source = {
                 this.options.quality = [];
 
                 // Remove elements
-                utils.removeElement(this.media);
+                removeElement(this.media);
                 this.media = null;
 
                 // Reset class name
-                if (utils.is.element(this.elements.container)) {
+                if (is.element(this.elements.container)) {
                     this.elements.container.removeAttribute('class');
                 }
 
                 // Set the type and provider
-                this.type = input.type;
-                this.provider = !utils.is.empty(input.sources[0].provider) ? input.sources[0].provider : providers.html5;
+                const { sources, type } = input;
+                const [{ provider = providers.html5, src }] = sources;
+                const tagName = provider === 'html5' ? type : 'div';
+                const attributes = provider === 'html5' ? {} : { src };
 
-                // Check for support
-                this.supported = support.check(this.type, this.provider, this.config.playsinline);
-
-                // Create new markup
-                switch (`${this.provider}:${this.type}`) {
-                    case 'html5:video':
-                        this.media = utils.createElement('video');
-                        break;
-
-                    case 'html5:audio':
-                        this.media = utils.createElement('audio');
-                        break;
-
-                    case 'youtube:video':
-                    case 'vimeo:video':
-                        this.media = utils.createElement('div', {
-                            src: input.sources[0].src,
-                        });
-                        break;
-
-                    default:
-                        break;
-                }
+                Object.assign(this, {
+                    provider,
+                    type,
+                    // Check for support
+                    supported: support.check(type, provider, this.config.playsinline),
+                    // Create new element
+                    media: createElement(tagName, attributes),
+                });
 
                 // Inject the new element
                 this.elements.container.appendChild(this.media);
 
                 // Autoplay the new source?
-                if (utils.is.boolean(input.autoplay)) {
+                if (is.boolean(input.autoplay)) {
                     this.config.autoplay = input.autoplay;
                 }
 
@@ -94,7 +83,7 @@ const source = {
                     if (this.config.autoplay) {
                         this.media.setAttribute('autoplay', '');
                     }
-                    if (!utils.is.empty(input.poster)) {
+                    if (!is.empty(input.poster)) {
                         this.poster = input.poster;
                     }
                     if (this.config.loop.active) {
@@ -113,7 +102,7 @@ const source = {
 
                 // Set new sources for html5
                 if (this.isHTML5) {
-                    source.insertElements.call(this, 'source', input.sources);
+                    source.insertElements.call(this, 'source', sources);
                 }
 
                 // Set video title

src/js/storage.js

@@ -2,7 +2,8 @@
 // Plyr storage
 // ==========================================================================
 
-import utils from './utils';
+import is from './utils/is';
+import { extend } from './utils/objects';
 
 class Storage {
     constructor(player) {
@@ -31,19 +32,19 @@ class Storage {
     }
 
     get(key) {
-        if (!Storage.supported) {
+        if (!Storage.supported || !this.enabled) {
             return null;
         }
 
         const store = window.localStorage.getItem(this.key);
 
-        if (utils.is.empty(store)) {
+        if (is.empty(store)) {
             return null;
         }
 
         const json = JSON.parse(store);
 
-        return utils.is.string(key) && key.length ? json[key] : json;
+        return is.string(key) && key.length ? json[key] : json;
     }
 
     set(object) {
@@ -53,7 +54,7 @@ class Storage {
         }
 
         // Can only store objectst
-        if (!utils.is.object(object)) {
+        if (!is.object(object)) {
             return;
         }
 
@@ -61,12 +62,12 @@ class Storage {
         let storage = this.get();
 
         // Default to empty object
-        if (utils.is.empty(storage)) {
+        if (is.empty(storage)) {
             storage = {};
         }
 
         // Update the working copy of the values
-        utils.extend(storage, object);
+        extend(storage, object);
 
         // Update storage
         window.localStorage.setItem(this.key, JSON.stringify(storage));

src/js/support.js

@@ -2,7 +2,19 @@
 // Plyr support checks
 // ==========================================================================
 
-import utils from './utils';
+import { transitionEndEvent } from './utils/animation';
+import browser from './utils/browser';
+import { createElement } from './utils/elements';
+import is from './utils/is';
+
+// Default codecs for checking mimetype support
+const defaultCodecs = {
+    'audio/ogg': 'vorbis',
+    'audio/wav': '1',
+    'video/webm': 'vp8, vorbis',
+    'video/mp4': 'avc1.42E01E, mp4a.40.2',
+    'video/ogg': 'theora',
+};
 
 // Check for feature support
 const support = {
@@ -13,32 +25,9 @@ const support = {
     // Check for support
     // Basic functionality vs full UI
     check(type, provider, playsinline) {
-        let api = false;
-        let ui = false;
-        const browser = utils.getBrowser();
         const canPlayInline = browser.isIPhone && playsinline && support.playsinline;
-
-        switch (`${provider}:${type}`) {
-            case 'html5:video':
-                api = support.video;
-                ui = api && support.rangeInput && (!browser.isIPhone || canPlayInline);
-                break;
-
-            case 'html5:audio':
-                api = support.audio;
-                ui = api && support.rangeInput;
-                break;
-
-            case 'youtube:video':
-            case 'vimeo:video':
-                api = true;
-                ui = support.rangeInput && (!browser.isIPhone || canPlayInline);
-                break;
-
-            default:
-                api = support.audio && support.video;
-                ui = api && support.rangeInput;
-        }
+        const api = support[type] || provider !== 'html5';
+        const ui = api && support.rangeInput && (type !== 'video' || !browser.isIPhone || canPlayInline);
 
         return {
             api,
@@ -48,14 +37,11 @@ const support = {
 
     // Picture-in-picture support
     // Safari only currently
-    pip: (() => {
-        const browser = utils.getBrowser();
-        return !browser.isIPhone && utils.is.function(utils.createElement('video').webkitSetPresentationMode);
-    })(),
+    pip: (() => !browser.isIPhone && is.function(createElement('video').webkitSetPresentationMode))(),
 
     // Airplay support
     // Safari only currently
-    airplay: utils.is.function(window.WebKitPlaybackTargetAvailabilityEvent),
+    airplay: is.function(window.WebKitPlaybackTargetAvailabilityEvent),
 
     // Inline playback support
     // https://webkit.org/blog/6784/new-video-policies-for-ios/
@@ -64,83 +50,34 @@ const support = {
     // Check for mime type support against a player instance
     // Credits: http://diveintohtml5.info/everything.html
     // Related: http://www.leanbackplayer.com/test/h5mt.html
-    mime(type) {
-        const { media } = this;
-
-        try {
-            // Bail if no checking function
-            if (!this.isHTML5 || !utils.is.function(media.canPlayType)) {
-                return false;
-            }
-
-            // Check directly if codecs specified
-            if (type.includes('codecs=')) {
-                return media.canPlayType(type).replace(/no/, '');
-            }
-
-            // Type specific checks
-            if (this.isVideo) {
-                switch (type) {
-                    case 'video/webm':
-                        return media.canPlayType('video/webm; codecs="vp8, vorbis"').replace(/no/, '');
-
-                    case 'video/mp4':
-                        return media.canPlayType('video/mp4; codecs="avc1.42E01E, mp4a.40.2"').replace(/no/, '');
-
-                    case 'video/ogg':
-                        return media.canPlayType('video/ogg; codecs="theora"').replace(/no/, '');
-
-                    default:
-                        return false;
-                }
-            } else if (this.isAudio) {
-                switch (type) {
-                    case 'audio/mpeg':
-                        return media.canPlayType('audio/mpeg;').replace(/no/, '');
-
-                    case 'audio/ogg':
-                        return media.canPlayType('audio/ogg; codecs="vorbis"').replace(/no/, '');
-
-                    case 'audio/wav':
-                        return media.canPlayType('audio/wav; codecs="1"').replace(/no/, '');
-
-                    default:
-                        return false;
-                }
-            }
-        } catch (e) {
+    mime(inputType) {
+        const [mediaType] = inputType.split('/');
+        if (!this.isHTML5 || mediaType !== this.type) {
             return false;
         }
 
-        // If we got this far, we're stuffed
-        return false;
+        let type;
+        if (inputType && inputType.includes('codecs=')) {
+            // Use input directly
+            type = inputType;
+        } else if (inputType === 'audio/mpeg') {
+            // Skip codec
+            type = 'audio/mpeg;';
+        } else if (inputType in defaultCodecs) {
+            // Use codec
+            type = `${inputType}; codecs="${defaultCodecs[inputType]}"`;
+        }
+
+        try {
+            return Boolean(type && this.media.canPlayType(type).replace(/no/, ''));
+        } catch (err) {
+            return false;
+        }
     },
 
     // Check for textTracks support
     textTracks: 'textTracks' in document.createElement('video'),
 
-    // Check for passive event listener support
-    // https://github.com/WICG/EventListenerOptions/blob/gh-pages/explainer.md
-    // https://www.youtube.com/watch?v=NPM6172J22g
-    passiveListeners: (() => {
-        // Test via a getter in the options object to see if the passive property is accessed
-        let supported = false;
-        try {
-            const options = Object.defineProperty({}, 'passive', {
-                get() {
-                    supported = true;
-                    return null;
-                },
-            });
-            window.addEventListener('test', null, options);
-            window.removeEventListener('test', null, options);
-        } catch (e) {
-            // Do nothing
-        }
-
-        return supported;
-    })(),
-
     // <input type="range"> Sliders
     rangeInput: (() => {
         const range = document.createElement('input');
@@ -153,7 +90,7 @@ const support = {
     touch: 'ontouchstart' in document.documentElement,
 
     // Detect transitions support
-    transitions: utils.transitionEndEvent !== false,
+    transitions: transitionEndEvent !== false,
 
     // Reduced motion iOS & MacOS setting
     // https://webkit.org/blog/7551/responsive-design-for-motion/

src/js/ui.js

@@ -6,15 +6,16 @@ import captions from './captions';
 import controls from './controls';
 import i18n from './i18n';
 import support from './support';
-import utils from './utils';
-
-// Sniff out the browser
-const browser = utils.getBrowser();
+import browser from './utils/browser';
+import { getElement, toggleClass } from './utils/elements';
+import { ready, triggerEvent } from './utils/events';
+import is from './utils/is';
+import loadImage from './utils/loadImage';
 
 const ui = {
     addStyleHook() {
-        utils.toggleClass(this.elements.container, this.config.selectors.container.replace('.', ''), true);
-        utils.toggleClass(this.elements.container, this.config.classNames.uiSupported, this.supported.ui);
+        toggleClass(this.elements.container, this.config.selectors.container.replace('.', ''), true);
+        toggleClass(this.elements.container, this.config.classNames.uiSupported, this.supported.ui);
     },
 
     // Toggle native HTML5 media controls
@@ -44,7 +45,7 @@ const ui = {
         }
 
         // Inject custom controls if not present
-        if (!utils.is.element(this.elements.controls)) {
+        if (!is.element(this.elements.controls)) {
             // Inject custom controls
             controls.inject.call(this);
 
@@ -55,8 +56,10 @@ const ui = {
         // Remove native controls
         ui.toggleNativeControls.call(this);
 
-        // Captions
-        captions.setup.call(this);
+        // Setup captions for HTML5
+        if (this.isHTML5) {
+            captions.setup.call(this);
+        }
 
         // Reset volume
         this.volume = null;
@@ -83,31 +86,41 @@ const ui = {
         ui.checkPlaying.call(this);
 
         // Check for picture-in-picture support
-        utils.toggleClass(this.elements.container, this.config.classNames.pip.supported, support.pip && this.isHTML5 && this.isVideo);
+        toggleClass(
+            this.elements.container,
+            this.config.classNames.pip.supported,
+            support.pip && this.isHTML5 && this.isVideo,
+        );
 
         // Check for airplay support
-        utils.toggleClass(this.elements.container, this.config.classNames.airplay.supported, support.airplay && this.isHTML5);
+        toggleClass(this.elements.container, this.config.classNames.airplay.supported, support.airplay && this.isHTML5);
 
         // Add iOS class
-        utils.toggleClass(this.elements.container, this.config.classNames.isIos, browser.isIos);
+        toggleClass(this.elements.container, this.config.classNames.isIos, browser.isIos);
 
         // Add touch class
-        utils.toggleClass(this.elements.container, this.config.classNames.isTouch, this.touch);
+        toggleClass(this.elements.container, this.config.classNames.isTouch, this.touch);
 
         // Ready for API calls
         this.ready = true;
 
         // Ready event at end of execution stack
         setTimeout(() => {
-            utils.dispatchEvent.call(this, this.media, 'ready');
+            triggerEvent.call(this, this.media, 'ready');
         }, 0);
 
         // Set the title
         ui.setTitle.call(this);
 
         // Assure the poster image is set, if the property was added before the element was created
-        if (this.poster && this.elements.poster && !this.elements.poster.style.backgroundImage) {
-            ui.setPoster.call(this, this.poster);
+        if (this.poster) {
+            ui.setPoster.call(this, this.poster, false).catch(() => {});
+        }
+
+        // Manually set the duration if user has overridden it.
+        // The event listeners for it doesn't get called if preload is disabled (#701)
+        if (this.config.duration) {
+            controls.durationUpdate.call(this);
         }
     },
 
@@ -117,31 +130,26 @@ const ui = {
         let label = i18n.get('play', this.config);
 
         // If there's a media title set, use that for the label
-        if (utils.is.string(this.config.title) && !utils.is.empty(this.config.title)) {
+        if (is.string(this.config.title) && !is.empty(this.config.title)) {
             label += `, ${this.config.title}`;
-
-            // Set container label
-            this.elements.container.setAttribute('aria-label', this.config.title);
         }
 
         // If there's a play button, set label
-        if (utils.is.nodeList(this.elements.buttons.play)) {
-            Array.from(this.elements.buttons.play).forEach(button => {
-                button.setAttribute('aria-label', label);
-            });
-        }
+        Array.from(this.elements.buttons.play || []).forEach(button => {
+            button.setAttribute('aria-label', label);
+        });
 
         // Set iframe title
         // https://github.com/sampotts/plyr/issues/124
         if (this.isEmbed) {
-            const iframe = utils.getElement.call(this, 'iframe');
+            const iframe = getElement.call(this, 'iframe');
 
-            if (!utils.is.element(iframe)) {
+            if (!is.element(iframe)) {
                 return;
             }
 
             // Default to media type
-            const title = !utils.is.empty(this.config.title) ? this.config.title : 'video';
+            const title = !is.empty(this.config.title) ? this.config.title : 'video';
             const format = i18n.get('frameTitle', this.config);
 
             iframe.setAttribute('title', format.replace('{title}', title));
@@ -150,51 +158,66 @@ const ui = {
 
     // Toggle poster
     togglePoster(enable) {
-        utils.toggleClass(this.elements.container, this.config.classNames.posterEnabled, enable);
+        toggleClass(this.elements.container, this.config.classNames.posterEnabled, enable);
     },
 
     // Set the poster image (async)
-    setPoster(poster) {
-        // Set property regardless of validity
-        this.media.setAttribute('poster', poster);
-
-        // Bail if element is missing
-        if (!utils.is.element(this.elements.poster)) {
-            return Promise.reject();
+    // Used internally for the poster setter, with the passive option forced to false
+    setPoster(poster, passive = true) {
+        // Don't override if call is passive
+        if (passive && this.poster) {
+            return Promise.reject(new Error('Poster already set'));
         }
 
-        // Load the image, and set poster if successful
-        const loadPromise = utils.loadImage(poster)
-            .then(() => {
-                this.elements.poster.style.backgroundImage = `url('${poster}')`;
-                Object.assign(this.elements.poster.style, {
-                    backgroundImage: `url('${poster}')`,
-                    // Reset backgroundSize as well (since it can be set to "cover" for padded thumbnails for youtube)
-                    backgroundSize: '',
-                });
-                ui.togglePoster.call(this, true);
-                return poster;
-            });
+        // Set property synchronously to respect the call order
+        this.media.setAttribute('poster', poster);
 
-        // Hide the element if the poster can't be loaded (otherwise it will just be a black element covering the video)
-        loadPromise.catch(() => ui.togglePoster.call(this, false));
-
-        // Return the promise so the caller can use it as well
-        return loadPromise;
+        // Wait until ui is ready
+        return (
+            ready
+                .call(this)
+                // Load image
+                .then(() => loadImage(poster))
+                .catch(err => {
+                    // Hide poster on error unless it's been set by another call
+                    if (poster === this.poster) {
+                        ui.togglePoster.call(this, false);
+                    }
+                    // Rethrow
+                    throw err;
+                })
+                .then(() => {
+                    // Prevent race conditions
+                    if (poster !== this.poster) {
+                        throw new Error('setPoster cancelled by later call to setPoster');
+                    }
+                })
+                .then(() => {
+                    Object.assign(this.elements.poster.style, {
+                        backgroundImage: `url('${poster}')`,
+                        // Reset backgroundSize as well (since it can be set to "cover" for padded thumbnails for youtube)
+                        backgroundSize: '',
+                    });
+                    ui.togglePoster.call(this, true);
+                    return poster;
+                })
+        );
     },
 
     // Check playing state
     checkPlaying(event) {
         // Class hooks
-        utils.toggleClass(this.elements.container, this.config.classNames.playing, this.playing);
-        utils.toggleClass(this.elements.container, this.config.classNames.paused, this.paused);
-        utils.toggleClass(this.elements.container, this.config.classNames.stopped, this.stopped);
+        toggleClass(this.elements.container, this.config.classNames.playing, this.playing);
+        toggleClass(this.elements.container, this.config.classNames.paused, this.paused);
+        toggleClass(this.elements.container, this.config.classNames.stopped, this.stopped);
 
-        // Set ARIA state
-        utils.toggleState(this.elements.buttons.play, this.playing);
+        // Set state
+        Array.from(this.elements.buttons.play || []).forEach(target => {
+            target.pressed = this.playing;
+        });
 
         // Only update controls on non timeupdate events
-        if (utils.is.event(event) && event.type === 'timeupdate') {
+        if (is.event(event) && event.type === 'timeupdate') {
             return;
         }
 
@@ -204,10 +227,7 @@ const ui = {
 
     // Check if media is loading
     checkLoading(event) {
-        this.loading = [
-            'stalled',
-            'waiting',
-        ].includes(event.type);
+        this.loading = ['stalled', 'waiting'].includes(event.type);
 
         // Clear timer
         clearTimeout(this.timers.loading);
@@ -215,7 +235,7 @@ const ui = {
         // Timer to prevent flicker when seeking
         this.timers.loading = setTimeout(() => {
             // Update progress bar loading class state
-            utils.toggleClass(this.elements.container, this.config.classNames.loading, this.loading);
+            toggleClass(this.elements.container, this.config.classNames.loading, this.loading);
 
             // Update controls visibility
             ui.toggleControls.call(this);

src/js/utils.js

@@ -1,864 +0,0 @@
-// ==========================================================================
-// Plyr utils
-// ==========================================================================
-
-import loadjs from 'loadjs';
-import Storage from './storage';
-import support from './support';
-import { providers } from './types';
-
-const utils = {
-    // Check variable types
-    is: {
-        object(input) {
-            return this.getConstructor(input) === Object;
-        },
-        number(input) {
-            return this.getConstructor(input) === Number && !Number.isNaN(input);
-        },
-        string(input) {
-            return this.getConstructor(input) === String;
-        },
-        boolean(input) {
-            return this.getConstructor(input) === Boolean;
-        },
-        function(input) {
-            return this.getConstructor(input) === Function;
-        },
-        array(input) {
-            return !this.nullOrUndefined(input) && Array.isArray(input);
-        },
-        weakMap(input) {
-            return this.instanceof(input, WeakMap);
-        },
-        nodeList(input) {
-            return this.instanceof(input, NodeList);
-        },
-        element(input) {
-            return this.instanceof(input, Element);
-        },
-        textNode(input) {
-            return this.getConstructor(input) === Text;
-        },
-        event(input) {
-            return this.instanceof(input, Event);
-        },
-        cue(input) {
-            return this.instanceof(input, TextTrackCue) || this.instanceof(input, VTTCue);
-        },
-        track(input) {
-            return this.instanceof(input, TextTrack) || (!this.nullOrUndefined(input) && this.string(input.kind));
-        },
-        url(input) {
-            return !this.nullOrUndefined(input) && /(ftp|http|https):\/\/(\w+:{0,1}\w*@)?(\S+)(:[0-9]+)?(\/|\/([\w#!:.?+=&%@!\-/]))?/.test(input);
-        },
-        nullOrUndefined(input) {
-            return input === null || typeof input === 'undefined';
-        },
-        empty(input) {
-            return (
-                this.nullOrUndefined(input) ||
-                ((this.string(input) || this.array(input) || this.nodeList(input)) && !input.length) ||
-                (this.object(input) && !Object.keys(input).length)
-            );
-        },
-        instanceof(input, constructor) {
-            return Boolean(input && constructor && input instanceof constructor);
-        },
-        getConstructor(input) {
-            return !this.nullOrUndefined(input) ? input.constructor : null;
-        },
-    },
-
-    // Unfortunately, due to mixed support, UA sniffing is required
-    getBrowser() {
-        return {
-            isIE: /* @cc_on!@ */ false || !!document.documentMode,
-            isWebkit: 'WebkitAppearance' in document.documentElement.style && !/Edge/.test(navigator.userAgent),
-            isIPhone: /(iPhone|iPod)/gi.test(navigator.platform),
-            isIos: /(iPad|iPhone|iPod)/gi.test(navigator.platform),
-        };
-    },
-
-    // Fetch wrapper
-    // Using XHR to avoid issues with older browsers
-    fetch(url, responseType = 'text') {
-        return new Promise((resolve, reject) => {
-            try {
-                const request = new XMLHttpRequest();
-
-                // Check for CORS support
-                if (!('withCredentials' in request)) {
-                    return;
-                }
-
-                request.addEventListener('load', () => {
-                    if (responseType === 'text') {
-                        try {
-                            resolve(JSON.parse(request.responseText));
-                        } catch (e) {
-                            resolve(request.responseText);
-                        }
-                    } else {
-                        resolve(request.response);
-                    }
-                });
-
-                request.addEventListener('error', () => {
-                    throw new Error(request.statusText);
-                });
-
-                request.open('GET', url, true);
-
-                // Set the required response type
-                request.responseType = responseType;
-
-                request.send();
-            } catch (e) {
-                reject(e);
-            }
-        });
-    },
-
-    // Load image avoiding xhr/fetch CORS issues
-    // Server status can't be obtained this way unfortunately, so this uses "naturalWidth" to determine if the image has loaded.
-    // By default it checks if it is at least 1px, but you can add a second argument to change this.
-    loadImage(src, minWidth = 1) {
-        return new Promise((resolve, reject) => {
-            const image = new Image();
-            const handler = () => {
-                delete image.onload;
-                delete image.onerror;
-                (image.naturalWidth >= minWidth ? resolve : reject)(image);
-            };
-            Object.assign(image, {onload: handler, onerror: handler, src});
-        });
-    },
-
-    // Load an external script
-    loadScript(url) {
-        return new Promise((resolve, reject) => {
-            loadjs(url, {
-                success: resolve,
-                error: reject,
-            });
-        });
-    },
-
-    // Load an external SVG sprite
-    loadSprite(url, id) {
-        if (!utils.is.string(url)) {
-            return;
-        }
-
-        const prefix = 'cache-';
-        const hasId = utils.is.string(id);
-        let isCached = false;
-
-        const exists = () => document.querySelectorAll(`#${id}`).length;
-
-        function injectSprite(data) {
-            // Check again incase of race condition
-            if (hasId && exists()) {
-                return;
-            }
-
-            // Inject content
-            this.innerHTML = data;
-
-            // Inject the SVG to the body
-            document.body.insertBefore(this, document.body.childNodes[0]);
-        }
-
-        // Only load once if ID set
-        if (!hasId || !exists()) {
-            const useStorage = Storage.supported;
-
-            // Create container
-            const container = document.createElement('div');
-            utils.toggleHidden(container, true);
-
-            if (hasId) {
-                container.setAttribute('id', id);
-            }
-
-            // Check in cache
-            if (useStorage) {
-                const cached = window.localStorage.getItem(prefix + id);
-                isCached = cached !== null;
-
-                if (isCached) {
-                    const data = JSON.parse(cached);
-                    injectSprite.call(container, data.content);
-                    return;
-                }
-            }
-
-            // Get the sprite
-            utils
-                .fetch(url)
-                .then(result => {
-                    if (utils.is.empty(result)) {
-                        return;
-                    }
-
-                    if (useStorage) {
-                        window.localStorage.setItem(
-                            prefix + id,
-                            JSON.stringify({
-                                content: result,
-                            }),
-                        );
-                    }
-
-                    injectSprite.call(container, result);
-                })
-                .catch(() => {});
-        }
-    },
-
-    // Generate a random ID
-    generateId(prefix) {
-        return `${prefix}-${Math.floor(Math.random() * 10000)}`;
-    },
-
-    // Wrap an element
-    wrap(elements, wrapper) {
-        // Convert `elements` to an array, if necessary.
-        const targets = elements.length ? elements : [elements];
-
-        // Loops backwards to prevent having to clone the wrapper on the
-        // first element (see `child` below).
-        Array.from(targets)
-            .reverse()
-            .forEach((element, index) => {
-                const child = index > 0 ? wrapper.cloneNode(true) : wrapper;
-
-                // Cache the current parent and sibling.
-                const parent = element.parentNode;
-                const sibling = element.nextSibling;
-
-                // Wrap the element (is automatically removed from its current
-                // parent).
-                child.appendChild(element);
-
-                // If the element had a sibling, insert the wrapper before
-                // the sibling to maintain the HTML structure; otherwise, just
-                // append it to the parent.
-                if (sibling) {
-                    parent.insertBefore(child, sibling);
-                } else {
-                    parent.appendChild(child);
-                }
-            });
-    },
-
-    // Create a DocumentFragment
-    createElement(type, attributes, text) {
-        // Create a new <element>
-        const element = document.createElement(type);
-
-        // Set all passed attributes
-        if (utils.is.object(attributes)) {
-            utils.setAttributes(element, attributes);
-        }
-
-        // Add text node
-        if (utils.is.string(text)) {
-            element.innerText = text;
-        }
-
-        // Return built element
-        return element;
-    },
-
-    // Inaert an element after another
-    insertAfter(element, target) {
-        target.parentNode.insertBefore(element, target.nextSibling);
-    },
-
-    // Insert a DocumentFragment
-    insertElement(type, parent, attributes, text) {
-        // Inject the new <element>
-        parent.appendChild(utils.createElement(type, attributes, text));
-    },
-
-    // Remove element(s)
-    removeElement(element) {
-        if (utils.is.nodeList(element) || utils.is.array(element)) {
-            Array.from(element).forEach(utils.removeElement);
-            return;
-        }
-
-        if (!utils.is.element(element) || !utils.is.element(element.parentNode)) {
-            return;
-        }
-
-        element.parentNode.removeChild(element);
-    },
-
-    // Remove all child elements
-    emptyElement(element) {
-        let { length } = element.childNodes;
-
-        while (length > 0) {
-            element.removeChild(element.lastChild);
-            length -= 1;
-        }
-    },
-
-    // Replace element
-    replaceElement(newChild, oldChild) {
-        if (!utils.is.element(oldChild) || !utils.is.element(oldChild.parentNode) || !utils.is.element(newChild)) {
-            return null;
-        }
-
-        oldChild.parentNode.replaceChild(newChild, oldChild);
-
-        return newChild;
-    },
-
-    // Set attributes
-    setAttributes(element, attributes) {
-        if (!utils.is.element(element) || utils.is.empty(attributes)) {
-            return;
-        }
-
-        Object.entries(attributes).forEach(([
-            key,
-            value,
-        ]) => {
-            element.setAttribute(key, value);
-        });
-    },
-
-    // Get an attribute object from a string selector
-    getAttributesFromSelector(sel, existingAttributes) {
-        // For example:
-        // '.test' to { class: 'test' }
-        // '#test' to { id: 'test' }
-        // '[data-test="test"]' to { 'data-test': 'test' }
-
-        if (!utils.is.string(sel) || utils.is.empty(sel)) {
-            return {};
-        }
-
-        const attributes = {};
-        const existing = existingAttributes;
-
-        sel.split(',').forEach(s => {
-            // Remove whitespace
-            const selector = s.trim();
-            const className = selector.replace('.', '');
-            const stripped = selector.replace(/[[\]]/g, '');
-
-            // Get the parts and value
-            const parts = stripped.split('=');
-            const key = parts[0];
-            const value = parts.length > 1 ? parts[1].replace(/["']/g, '') : '';
-
-            // Get the first character
-            const start = selector.charAt(0);
-
-            switch (start) {
-                case '.':
-                    // Add to existing classname
-                    if (utils.is.object(existing) && utils.is.string(existing.class)) {
-                        existing.class += ` ${className}`;
-                    }
-
-                    attributes.class = className;
-                    break;
-
-                case '#':
-                    // ID selector
-                    attributes.id = selector.replace('#', '');
-                    break;
-
-                case '[':
-                    // Attribute selector
-                    attributes[key] = value;
-
-                    break;
-
-                default:
-                    break;
-            }
-        });
-
-        return attributes;
-    },
-
-    // Toggle hidden
-    toggleHidden(element, hidden) {
-        if (!utils.is.element(element)) {
-            return;
-        }
-
-        let hide = hidden;
-
-        if (!utils.is.boolean(hide)) {
-            hide = !element.hasAttribute('hidden');
-        }
-
-        if (hide) {
-            element.setAttribute('hidden', '');
-        } else {
-            element.removeAttribute('hidden');
-        }
-    },
-
-    // Mirror Element.classList.toggle, with IE compatibility for "force" argument
-    toggleClass(element, className, force) {
-        if (utils.is.element(element)) {
-            let method = 'toggle';
-            if (typeof force !== 'undefined') {
-                method = force ? 'add' : 'remove';
-            }
-
-            element.classList[method](className);
-            return element.classList.contains(className);
-        }
-
-        return null;
-    },
-
-    // Has class name
-    hasClass(element, className) {
-        return utils.is.element(element) && element.classList.contains(className);
-    },
-
-    // Element matches selector
-    matches(element, selector) {
-        const prototype = { Element };
-
-        function match() {
-            return Array.from(document.querySelectorAll(selector)).includes(this);
-        }
-
-        const matches = prototype.matches || prototype.webkitMatchesSelector || prototype.mozMatchesSelector || prototype.msMatchesSelector || match;
-
-        return matches.call(element, selector);
-    },
-
-    // Find all elements
-    getElements(selector) {
-        return this.elements.container.querySelectorAll(selector);
-    },
-
-    // Find a single element
-    getElement(selector) {
-        return this.elements.container.querySelector(selector);
-    },
-
-    // Get the focused element
-    getFocusElement() {
-        let focused = document.activeElement;
-
-        if (!focused || focused === document.body) {
-            focused = null;
-        } else {
-            focused = document.querySelector(':focus');
-        }
-
-        return focused;
-    },
-
-    // Trap focus inside container
-    trapFocus(element = null, toggle = false) {
-        if (!utils.is.element(element)) {
-            return;
-        }
-
-        const focusable = utils.getElements.call(this, 'button:not(:disabled), input:not(:disabled), [tabindex]');
-        const first = focusable[0];
-        const last = focusable[focusable.length - 1];
-
-        const trap = event => {
-            // Bail if not tab key or not fullscreen
-            if (event.key !== 'Tab' || event.keyCode !== 9) {
-                return;
-            }
-
-            // Get the current focused element
-            const focused = utils.getFocusElement();
-
-            if (focused === last && !event.shiftKey) {
-                // Move focus to first element that can be tabbed if Shift isn't used
-                first.focus();
-                event.preventDefault();
-            } else if (focused === first && event.shiftKey) {
-                // Move focus to last element that can be tabbed if Shift is used
-                last.focus();
-                event.preventDefault();
-            }
-        };
-
-        if (toggle) {
-            utils.on(this.elements.container, 'keydown', trap, false);
-        } else {
-            utils.off(this.elements.container, 'keydown', trap, false);
-        }
-    },
-
-    // Toggle event listener
-    toggleListener(elements, event, callback, toggle = false, passive = true, capture = false) {
-        // Bail if no elemetns, event, or callback
-        if (utils.is.empty(elements) || utils.is.empty(event) || !utils.is.function(callback)) {
-            return;
-        }
-
-        // If a nodelist is passed, call itself on each node
-        if (utils.is.nodeList(elements) || utils.is.array(elements)) {
-            // Create listener for each node
-            Array.from(elements).forEach(element => {
-                if (element instanceof Node) {
-                    utils.toggleListener.call(null, element, event, callback, toggle, passive, capture);
-                }
-            });
-
-            return;
-        }
-
-        // Allow multiple events
-        const events = event.split(' ');
-
-        // Build options
-        // Default to just the capture boolean for browsers with no passive listener support
-        let options = capture;
-
-        // If passive events listeners are supported
-        if (support.passiveListeners) {
-            options = {
-                // Whether the listener can be passive (i.e. default never prevented)
-                passive,
-                // Whether the listener is a capturing listener or not
-                capture,
-            };
-        }
-
-        // If a single node is passed, bind the event listener
-        events.forEach(type => {
-            elements[toggle ? 'addEventListener' : 'removeEventListener'](type, callback, options);
-        });
-    },
-
-    // Bind event handler
-    on(element, events = '', callback, passive = true, capture = false) {
-        utils.toggleListener(element, events, callback, true, passive, capture);
-    },
-
-    // Unbind event handler
-    off(element, events = '', callback, passive = true, capture = false) {
-        utils.toggleListener(element, events, callback, false, passive, capture);
-    },
-
-    // Trigger event
-    dispatchEvent(element, type = '', bubbles = false, detail = {}) {
-        // Bail if no element
-        if (!utils.is.element(element) || utils.is.empty(type)) {
-            return;
-        }
-
-        // Create and dispatch the event
-        const event = new CustomEvent(type, {
-            bubbles,
-            detail: Object.assign({}, detail, {
-                plyr: this,
-            }),
-        });
-
-        // Dispatch the event
-        element.dispatchEvent(event);
-    },
-
-    // Toggle aria-pressed state on a toggle button
-    // http://www.ssbbartgroup.com/blog/how-not-to-misuse-aria-states-properties-and-roles
-    toggleState(element, input) {
-        // If multiple elements passed
-        if (utils.is.array(element) || utils.is.nodeList(element)) {
-            Array.from(element).forEach(target => utils.toggleState(target, input));
-            return;
-        }
-
-        // Bail if no target
-        if (!utils.is.element(element)) {
-            return;
-        }
-
-        // Get state
-        const pressed = element.getAttribute('aria-pressed') === 'true';
-        const state = utils.is.boolean(input) ? input : !pressed;
-
-        // Set the attribute on target
-        element.setAttribute('aria-pressed', state);
-    },
-
-    // Format string
-    format(input, ...args) {
-        if (utils.is.empty(input)) {
-            return input;
-        }
-
-        return input.toString().replace(/{(\d+)}/g, (match, i) => (utils.is.string(args[i]) ? args[i] : ''));
-    },
-
-    // Get percentage
-    getPercentage(current, max) {
-        if (current === 0 || max === 0 || Number.isNaN(current) || Number.isNaN(max)) {
-            return 0;
-        }
-
-        return (current / max * 100).toFixed(2);
-    },
-
-    // Time helpers
-    getHours(value) {
-        return parseInt((value / 60 / 60) % 60, 10);
-    },
-    getMinutes(value) {
-        return parseInt((value / 60) % 60, 10);
-    },
-    getSeconds(value) {
-        return parseInt(value % 60, 10);
-    },
-
-    // Format time to UI friendly string
-    formatTime(time = 0, displayHours = false, inverted = false) {
-        // Bail if the value isn't a number
-        if (!utils.is.number(time)) {
-            return this.formatTime(null, displayHours, inverted);
-        }
-
-        // Format time component to add leading zero
-        const format = value => `0${value}`.slice(-2);
-
-        // Breakdown to hours, mins, secs
-        let hours = this.getHours(time);
-        const mins = this.getMinutes(time);
-        const secs = this.getSeconds(time);
-
-        // Do we need to display hours?
-        if (displayHours || hours > 0) {
-            hours = `${hours}:`;
-        } else {
-            hours = '';
-        }
-
-        // Render
-        return `${inverted ? '-' : ''}${hours}${format(mins)}:${format(secs)}`;
-    },
-
-    // Replace all occurances of a string in a string
-    replaceAll(input = '', find = '', replace = '') {
-        return input.replace(new RegExp(find.toString().replace(/([.*+?^=!:${}()|[\]/\\])/g, '\\$1'), 'g'), replace.toString());
-    },
-
-    // Convert to title case
-    toTitleCase(input = '') {
-        return input.toString().replace(/\w\S*/g, text => text.charAt(0).toUpperCase() + text.substr(1).toLowerCase());
-    },
-
-    // Convert string to pascalCase
-    toPascalCase(input = '') {
-        let string = input.toString();
-
-        // Convert kebab case
-        string = utils.replaceAll(string, '-', ' ');
-
-        // Convert snake case
-        string = utils.replaceAll(string, '_', ' ');
-
-        // Convert to title case
-        string = utils.toTitleCase(string);
-
-        // Convert to pascal case
-        return utils.replaceAll(string, ' ', '');
-    },
-
-    // Convert string to pascalCase
-    toCamelCase(input = '') {
-        let string = input.toString();
-
-        // Convert to pascal case
-        string = utils.toPascalCase(string);
-
-        // Convert first character to lowercase
-        return string.charAt(0).toLowerCase() + string.slice(1);
-    },
-
-    // Deep extend destination object with N more objects
-    extend(target = {}, ...sources) {
-        if (!sources.length) {
-            return target;
-        }
-
-        const source = sources.shift();
-
-        if (!utils.is.object(source)) {
-            return target;
-        }
-
-        Object.keys(source).forEach(key => {
-            if (utils.is.object(source[key])) {
-                if (!Object.keys(target).includes(key)) {
-                    Object.assign(target, { [key]: {} });
-                }
-
-                utils.extend(target[key], source[key]);
-            } else {
-                Object.assign(target, { [key]: source[key] });
-            }
-        });
-
-        return utils.extend(target, ...sources);
-    },
-
-    // Remove duplicates in an array
-    dedupe(array) {
-        if (!utils.is.array(array)) {
-            return array;
-        }
-
-        return array.filter((item, index) => array.indexOf(item) === index);
-    },
-
-    // Clone nested objects
-    cloneDeep(object) {
-        return JSON.parse(JSON.stringify(object));
-    },
-
-    // Get the closest value in an array
-    closest(array, value) {
-        if (!utils.is.array(array) || !array.length) {
-            return null;
-        }
-
-        return array.reduce((prev, curr) => (Math.abs(curr - value) < Math.abs(prev - value) ? curr : prev));
-    },
-
-    // Get the provider for a given URL
-    getProviderByUrl(url) {
-        // YouTube
-        if (/^(https?:\/\/)?(www\.)?(youtube\.com|youtu\.?be)\/.+$/.test(url)) {
-            return providers.youtube;
-        }
-
-        // Vimeo
-        if (/^https?:\/\/player.vimeo.com\/video\/\d{0,9}(?=\b|\/)/.test(url)) {
-            return providers.vimeo;
-        }
-
-        return null;
-    },
-
-    // Parse YouTube ID from URL
-    parseYouTubeId(url) {
-        if (utils.is.empty(url)) {
-            return null;
-        }
-
-        const regex = /^.*(youtu.be\/|v\/|u\/\w\/|embed\/|watch\?v=|&v=)([^#&?]*).*/;
-        return url.match(regex) ? RegExp.$2 : url;
-    },
-
-    // Parse Vimeo ID from URL
-    parseVimeoId(url) {
-        if (utils.is.empty(url)) {
-            return null;
-        }
-
-        if (utils.is.number(Number(url))) {
-            return url;
-        }
-
-        const regex = /^.*(vimeo.com\/|video\/)(\d+).*/;
-        return url.match(regex) ? RegExp.$2 : url;
-    },
-
-    // Convert a URL to a location object
-    parseUrl(url) {
-        const parser = document.createElement('a');
-        parser.href = url;
-        return parser;
-    },
-
-    // Get URL query parameters
-    getUrlParams(input) {
-        let search = input;
-
-        // Parse URL if needed
-        if (input.startsWith('http://') || input.startsWith('https://')) {
-            ({ search } = this.parseUrl(input));
-        }
-
-        if (this.is.empty(search)) {
-            return null;
-        }
-
-        const hashes = search.slice(search.indexOf('?') + 1).split('&');
-
-        return hashes.reduce((params, hash) => {
-            const [
-                key,
-                val,
-            ] = hash.split('=');
-
-            return Object.assign(params, { [key]: decodeURIComponent(val) });
-        }, {});
-    },
-
-    // Convert object to URL parameters
-    buildUrlParams(input) {
-        if (!utils.is.object(input)) {
-            return '';
-        }
-
-        return Object.keys(input)
-            .map(key => `${encodeURIComponent(key)}=${encodeURIComponent(input[key])}`)
-            .join('&');
-    },
-
-    // Remove HTML from a string
-    stripHTML(source) {
-        const fragment = document.createDocumentFragment();
-        const element = document.createElement('div');
-        fragment.appendChild(element);
-        element.innerHTML = source;
-        return fragment.firstChild.innerText;
-    },
-
-    // Get aspect ratio for dimensions
-    getAspectRatio(width, height) {
-        const getRatio = (w, h) => (h === 0 ? w : getRatio(h, w % h));
-        const ratio = getRatio(width, height);
-        return `${width / ratio}:${height / ratio}`;
-    },
-
-    // Get the transition end event
-    get transitionEndEvent() {
-        const element = document.createElement('span');
-
-        const events = {
-            WebkitTransition: 'webkitTransitionEnd',
-            MozTransition: 'transitionend',
-            OTransition: 'oTransitionEnd otransitionend',
-            transition: 'transitionend',
-        };
-
-        const type = Object.keys(events).find(event => element.style[event] !== undefined);
-
-        return utils.is.string(type) ? events[type] : false;
-    },
-
-    // Force repaint of element
-    repaint(element) {
-        setTimeout(() => {
-            utils.toggleHidden(element, true);
-            element.offsetHeight; // eslint-disable-line
-            utils.toggleHidden(element, false);
-        }, 0);
-    },
-};
-
-export default utils;

src/js/utils/animation.js

@@ -0,0 +1,30 @@
+// ==========================================================================
+// Animation utils
+// ==========================================================================
+
+import { toggleHidden } from './elements';
+import is from './is';
+
+export const transitionEndEvent = (() => {
+    const element = document.createElement('span');
+
+    const events = {
+        WebkitTransition: 'webkitTransitionEnd',
+        MozTransition: 'transitionend',
+        OTransition: 'oTransitionEnd otransitionend',
+        transition: 'transitionend',
+    };
+
+    const type = Object.keys(events).find(event => element.style[event] !== undefined);
+
+    return is.string(type) ? events[type] : false;
+})();
+
+// Force repaint of element
+export function repaint(element) {
+    setTimeout(() => {
+        toggleHidden(element, true);
+        element.offsetHeight; // eslint-disable-line
+        toggleHidden(element, false);
+    }, 0);
+}

src/js/utils/arrays.js

@@ -0,0 +1,23 @@
+// ==========================================================================
+// Array utils
+// ==========================================================================
+
+import is from './is';
+
+// Remove duplicates in an array
+export function dedupe(array) {
+    if (!is.array(array)) {
+        return array;
+    }
+
+    return array.filter((item, index) => array.indexOf(item) === index);
+}
+
+// Get the closest value in an array
+export function closest(array, value) {
+    if (!is.array(array) || !array.length) {
+        return null;
+    }
+
+    return array.reduce((prev, curr) => (Math.abs(curr - value) < Math.abs(prev - value) ? curr : prev));
+}

src/js/utils/browser.js

@@ -0,0 +1,13 @@
+// ==========================================================================
+// Browser sniffing
+// Unfortunately, due to mixed support, UA sniffing is required
+// ==========================================================================
+
+const browser = {
+    isIE: /* @cc_on!@ */ false || !!document.documentMode,
+    isWebkit: 'WebkitAppearance' in document.documentElement.style && !/Edge/.test(navigator.userAgent),
+    isIPhone: /(iPhone|iPod)/gi.test(navigator.platform),
+    isIos: /(iPad|iPhone|iPod)/gi.test(navigator.platform),
+};
+
+export default browser;

src/js/utils/elements.js

@@ -0,0 +1,285 @@
+// ==========================================================================
+// Element utils
+// ==========================================================================
+
+import { toggleListener } from './events';
+import is from './is';
+
+// Wrap an element
+export function wrap(elements, wrapper) {
+    // Convert `elements` to an array, if necessary.
+    const targets = elements.length ? elements : [elements];
+
+    // Loops backwards to prevent having to clone the wrapper on the
+    // first element (see `child` below).
+    Array.from(targets)
+        .reverse()
+        .forEach((element, index) => {
+            const child = index > 0 ? wrapper.cloneNode(true) : wrapper;
+
+            // Cache the current parent and sibling.
+            const parent = element.parentNode;
+            const sibling = element.nextSibling;
+
+            // Wrap the element (is automatically removed from its current
+            // parent).
+            child.appendChild(element);
+
+            // If the element had a sibling, insert the wrapper before
+            // the sibling to maintain the HTML structure; otherwise, just
+            // append it to the parent.
+            if (sibling) {
+                parent.insertBefore(child, sibling);
+            } else {
+                parent.appendChild(child);
+            }
+        });
+}
+
+// Set attributes
+export function setAttributes(element, attributes) {
+    if (!is.element(element) || is.empty(attributes)) {
+        return;
+    }
+
+    // Assume null and undefined attributes should be left out,
+    // Setting them would otherwise convert them to "null" and "undefined"
+    Object.entries(attributes)
+        .filter(([, value]) => !is.nullOrUndefined(value))
+        .forEach(([key, value]) => element.setAttribute(key, value));
+}
+
+// Create a DocumentFragment
+export function createElement(type, attributes, text) {
+    // Create a new <element>
+    const element = document.createElement(type);
+
+    // Set all passed attributes
+    if (is.object(attributes)) {
+        setAttributes(element, attributes);
+    }
+
+    // Add text node
+    if (is.string(text)) {
+        element.innerText = text;
+    }
+
+    // Return built element
+    return element;
+}
+
+// Inaert an element after another
+export function insertAfter(element, target) {
+    target.parentNode.insertBefore(element, target.nextSibling);
+}
+
+// Insert a DocumentFragment
+export function insertElement(type, parent, attributes, text) {
+    // Inject the new <element>
+    parent.appendChild(createElement(type, attributes, text));
+}
+
+// Remove element(s)
+export function removeElement(element) {
+    if (is.nodeList(element) || is.array(element)) {
+        Array.from(element).forEach(removeElement);
+        return;
+    }
+
+    if (!is.element(element) || !is.element(element.parentNode)) {
+        return;
+    }
+
+    element.parentNode.removeChild(element);
+}
+
+// Remove all child elements
+export function emptyElement(element) {
+    let { length } = element.childNodes;
+
+    while (length > 0) {
+        element.removeChild(element.lastChild);
+        length -= 1;
+    }
+}
+
+// Replace element
+export function replaceElement(newChild, oldChild) {
+    if (!is.element(oldChild) || !is.element(oldChild.parentNode) || !is.element(newChild)) {
+        return null;
+    }
+
+    oldChild.parentNode.replaceChild(newChild, oldChild);
+
+    return newChild;
+}
+
+// Get an attribute object from a string selector
+export function getAttributesFromSelector(sel, existingAttributes) {
+    // For example:
+    // '.test' to { class: 'test' }
+    // '#test' to { id: 'test' }
+    // '[data-test="test"]' to { 'data-test': 'test' }
+
+    if (!is.string(sel) || is.empty(sel)) {
+        return {};
+    }
+
+    const attributes = {};
+    const existing = existingAttributes;
+
+    sel.split(',').forEach(s => {
+        // Remove whitespace
+        const selector = s.trim();
+        const className = selector.replace('.', '');
+        const stripped = selector.replace(/[[\]]/g, '');
+
+        // Get the parts and value
+        const parts = stripped.split('=');
+        const key = parts[0];
+        const value = parts.length > 1 ? parts[1].replace(/["']/g, '') : '';
+
+        // Get the first character
+        const start = selector.charAt(0);
+
+        switch (start) {
+            case '.':
+                // Add to existing classname
+                if (is.object(existing) && is.string(existing.class)) {
+                    existing.class += ` ${className}`;
+                }
+
+                attributes.class = className;
+                break;
+
+            case '#':
+                // ID selector
+                attributes.id = selector.replace('#', '');
+                break;
+
+            case '[':
+                // Attribute selector
+                attributes[key] = value;
+
+                break;
+
+            default:
+                break;
+        }
+    });
+
+    return attributes;
+}
+
+// Toggle hidden
+export function toggleHidden(element, hidden) {
+    if (!is.element(element)) {
+        return;
+    }
+
+    let hide = hidden;
+
+    if (!is.boolean(hide)) {
+        hide = !element.hasAttribute('hidden');
+    }
+
+    if (hide) {
+        element.setAttribute('hidden', '');
+    } else {
+        element.removeAttribute('hidden');
+    }
+}
+
+// Mirror Element.classList.toggle, with IE compatibility for "force" argument
+export function toggleClass(element, className, force) {
+    if (is.element(element)) {
+        let method = 'toggle';
+        if (typeof force !== 'undefined') {
+            method = force ? 'add' : 'remove';
+        }
+
+        element.classList[method](className);
+        return element.classList.contains(className);
+    }
+
+    return null;
+}
+
+// Has class name
+export function hasClass(element, className) {
+    return is.element(element) && element.classList.contains(className);
+}
+
+// Element matches selector
+export function matches(element, selector) {
+    const prototype = { Element };
+
+    function match() {
+        return Array.from(document.querySelectorAll(selector)).includes(this);
+    }
+
+    const matches =
+        prototype.matches ||
+        prototype.webkitMatchesSelector ||
+        prototype.mozMatchesSelector ||
+        prototype.msMatchesSelector ||
+        match;
+
+    return matches.call(element, selector);
+}
+
+// Find all elements
+export function getElements(selector) {
+    return this.elements.container.querySelectorAll(selector);
+}
+
+// Find a single element
+export function getElement(selector) {
+    return this.elements.container.querySelector(selector);
+}
+
+// Get the focused element
+export function getFocusElement() {
+    let focused = document.activeElement;
+
+    if (!focused || focused === document.body) {
+        focused = null;
+    } else {
+        focused = document.querySelector(':focus');
+    }
+
+    return focused;
+}
+
+// Trap focus inside container
+export function trapFocus(element = null, toggle = false) {
+    if (!is.element(element)) {
+        return;
+    }
+
+    const focusable = getElements.call(this, 'button:not(:disabled), input:not(:disabled), [tabindex]');
+    const first = focusable[0];
+    const last = focusable[focusable.length - 1];
+
+    const trap = event => {
+        // Bail if not tab key or not fullscreen
+        if (event.key !== 'Tab' || event.keyCode !== 9) {
+            return;
+        }
+
+        // Get the current focused element
+        const focused = getFocusElement();
+
+        if (focused === last && !event.shiftKey) {
+            // Move focus to first element that can be tabbed if Shift isn't used
+            first.focus();
+            event.preventDefault();
+        } else if (focused === first && event.shiftKey) {
+            // Move focus to last element that can be tabbed if Shift is used
+            last.focus();
+            event.preventDefault();
+        }
+    };
+
+    toggleListener.call(this, this.elements.container, 'keydown', trap, toggle, false);
+}

src/js/utils/events.js

@@ -0,0 +1,120 @@
+// ==========================================================================
+// Event utils
+// ==========================================================================
+
+import is from './is';
+
+// Check for passive event listener support
+// https://github.com/WICG/EventListenerOptions/blob/gh-pages/explainer.md
+// https://www.youtube.com/watch?v=NPM6172J22g
+const supportsPassiveListeners = (() => {
+    // Test via a getter in the options object to see if the passive property is accessed
+    let supported = false;
+    try {
+        const options = Object.defineProperty({}, 'passive', {
+            get() {
+                supported = true;
+                return null;
+            },
+        });
+        window.addEventListener('test', null, options);
+        window.removeEventListener('test', null, options);
+    } catch (e) {
+        // Do nothing
+    }
+
+    return supported;
+})();
+
+// Toggle event listener
+export function toggleListener(element, event, callback, toggle = false, passive = true, capture = false) {
+    // Bail if no element, event, or callback
+    if (!element || !('addEventListener' in element) || is.empty(event) || !is.function(callback)) {
+        return;
+    }
+
+    // Allow multiple events
+    const events = event.split(' ');
+
+    // Build options
+    // Default to just the capture boolean for browsers with no passive listener support
+    let options = capture;
+
+    // If passive events listeners are supported
+    if (supportsPassiveListeners) {
+        options = {
+            // Whether the listener can be passive (i.e. default never prevented)
+            passive,
+            // Whether the listener is a capturing listener or not
+            capture,
+        };
+    }
+
+    // If a single node is passed, bind the event listener
+    events.forEach(type => {
+        if (this && this.eventListeners && toggle) {
+            // Cache event listener
+            this.eventListeners.push({ element, type, callback, options });
+        }
+
+        element[toggle ? 'addEventListener' : 'removeEventListener'](type, callback, options);
+    });
+}
+
+// Bind event handler
+export function on(element, events = '', callback, passive = true, capture = false) {
+    toggleListener.call(this, element, events, callback, true, passive, capture);
+}
+
+// Unbind event handler
+export function off(element, events = '', callback, passive = true, capture = false) {
+    toggleListener.call(this, element, events, callback, false, passive, capture);
+}
+
+// Bind once-only event handler
+export function once(element, events = '', callback, passive = true, capture = false) {
+    function onceCallback(...args) {
+        off(element, events, onceCallback, passive, capture);
+        callback.apply(this, args);
+    }
+
+    toggleListener.call(this, element, events, onceCallback, true, passive, capture);
+}
+
+// Trigger event
+export function triggerEvent(element, type = '', bubbles = false, detail = {}) {
+    // Bail if no element
+    if (!is.element(element) || is.empty(type)) {
+        return;
+    }
+
+    // Create and dispatch the event
+    const event = new CustomEvent(type, {
+        bubbles,
+        detail: Object.assign({}, detail, {
+            plyr: this,
+        }),
+    });
+
+    // Dispatch the event
+    element.dispatchEvent(event);
+}
+
+// Unbind all cached event listeners
+export function unbindListeners() {
+    if (this && this.eventListeners) {
+        this.eventListeners.forEach(item => {
+            const { element, type, callback, options } = item;
+            element.removeEventListener(type, callback, options);
+        });
+
+        this.eventListeners = [];
+    }
+}
+
+// Run method when / if player is ready
+export function ready() {
+    return new Promise(
+        resolve => (this.ready ? setTimeout(resolve, 0) : on.call(this, this.elements.container, 'ready', resolve)),
+    ).then(() => {});
+}

src/js/utils/fetch.js

@@ -0,0 +1,42 @@
+// ==========================================================================
+// Fetch wrapper
+// Using XHR to avoid issues with older browsers
+// ==========================================================================
+
+export default function fetch(url, responseType = 'text') {
+    return new Promise((resolve, reject) => {
+        try {
+            const request = new XMLHttpRequest();
+
+            // Check for CORS support
+            if (!('withCredentials' in request)) {
+                return;
+            }
+
+            request.addEventListener('load', () => {
+                if (responseType === 'text') {
+                    try {
+                        resolve(JSON.parse(request.responseText));
+                    } catch (e) {
+                        resolve(request.responseText);
+                    }
+                } else {
+                    resolve(request.response);
+                }
+            });
+
+            request.addEventListener('error', () => {
+                throw new Error(request.status);
+            });
+
+            request.open('GET', url, true);
+
+            // Set the required response type
+            request.responseType = responseType;
+
+            request.send();
+        } catch (e) {
+            reject(e);
+        }
+    });
+}

src/js/utils/is.js

@@ -0,0 +1,67 @@
+// ==========================================================================
+// Type checking utils
+// ==========================================================================
+
+const getConstructor = input => (input !== null && typeof input !== 'undefined' ? input.constructor : null);
+
+const instanceOf = (input, constructor) => Boolean(input && constructor && input instanceof constructor);
+
+const is = {
+    object(input) {
+        return getConstructor(input) === Object;
+    },
+    number(input) {
+        return getConstructor(input) === Number && !Number.isNaN(input);
+    },
+    string(input) {
+        return getConstructor(input) === String;
+    },
+    boolean(input) {
+        return getConstructor(input) === Boolean;
+    },
+    function(input) {
+        return getConstructor(input) === Function;
+    },
+    array(input) {
+        return !is.nullOrUndefined(input) && Array.isArray(input);
+    },
+    weakMap(input) {
+        return instanceOf(input, WeakMap);
+    },
+    nodeList(input) {
+        return instanceOf(input, NodeList);
+    },
+    element(input) {
+        return instanceOf(input, Element);
+    },
+    textNode(input) {
+        return getConstructor(input) === Text;
+    },
+    event(input) {
+        return instanceOf(input, Event);
+    },
+    cue(input) {
+        return instanceOf(input, window.TextTrackCue) || instanceOf(input, window.VTTCue);
+    },
+    track(input) {
+        return instanceOf(input, TextTrack) || (!is.nullOrUndefined(input) && is.string(input.kind));
+    },
+    url(input) {
+        return (
+            !is.nullOrUndefined(input) &&
+            /(ftp|http|https):\/\/(\w+:{0,1}\w*@)?(\S+)(:[0-9]+)?(\/|\/([\w#!:.?+=&%@!\-/]))?/.test(input)
+        );
+    },
+    nullOrUndefined(input) {
+        return input === null || typeof input === 'undefined';
+    },
+    empty(input) {
+        return (
+            is.nullOrUndefined(input) ||
+            ((is.string(input) || is.array(input) || is.nodeList(input)) && !input.length) ||
+            (is.object(input) && !Object.keys(input).length)
+        );
+    },
+};
+
+export default is;

src/js/utils/loadImage.js

@@ -0,0 +1,19 @@
+// ==========================================================================
+// Load image avoiding xhr/fetch CORS issues
+// Server status can't be obtained this way unfortunately, so this uses "naturalWidth" to determine if the image has loaded
+// By default it checks if it is at least 1px, but you can add a second argument to change this
+// ==========================================================================
+
+export default function loadImage(src, minWidth = 1) {
+    return new Promise((resolve, reject) => {
+        const image = new Image();
+
+        const handler = () => {
+            delete image.onload;
+            delete image.onerror;
+            (image.naturalWidth >= minWidth ? resolve : reject)(image);
+        };
+
+        Object.assign(image, { onload: handler, onerror: handler, src });
+    });
+}

src/js/utils/loadScript.js

@@ -0,0 +1,14 @@
+// ==========================================================================
+// Load an external script
+// ==========================================================================
+
+import loadjs from 'loadjs';
+
+export default function loadScript(url) {
+    return new Promise((resolve, reject) => {
+        loadjs(url, {
+            success: resolve,
+            error: reject,
+        });
+    });
+}

src/js/utils/loadSprite.js

@@ -0,0 +1,76 @@
+// ==========================================================================
+// Sprite loader
+// ==========================================================================
+
+import Storage from './../storage';
+import fetch from './fetch';
+import is from './is';
+
+// Load an external SVG sprite
+export default function loadSprite(url, id) {
+    if (!is.string(url)) {
+        return;
+    }
+
+    const prefix = 'cache';
+    const hasId = is.string(id);
+    let isCached = false;
+
+    const exists = () => document.getElementById(id) !== null;
+
+    const update = (container, data) => {
+        container.innerHTML = data;
+
+        // Check again incase of race condition
+        if (hasId && exists()) {
+            return;
+        }
+
+        // Inject the SVG to the body
+        document.body.insertAdjacentElement('afterbegin', container);
+    };
+
+    // Only load once if ID set
+    if (!hasId || !exists()) {
+        const useStorage = Storage.supported;
+
+        // Create container
+        const container = document.createElement('div');
+        container.setAttribute('hidden', '');
+
+        if (hasId) {
+            container.setAttribute('id', id);
+        }
+
+        // Check in cache
+        if (useStorage) {
+            const cached = window.localStorage.getItem(`${prefix}-${id}`);
+            isCached = cached !== null;
+
+            if (isCached) {
+                const data = JSON.parse(cached);
+                update(container, data.content);
+            }
+        }
+
+        // Get the sprite
+        fetch(url)
+            .then(result => {
+                if (is.empty(result)) {
+                    return;
+                }
+
+                if (useStorage) {
+                    window.localStorage.setItem(
+                        `${prefix}-${id}`,
+                        JSON.stringify({
+                            content: result,
+                        }),
+                    );
+                }
+
+                update(container, result);
+            })
+            .catch(() => {});
+    }
+}

src/js/utils/objects.js

@@ -0,0 +1,42 @@
+// ==========================================================================
+// Object utils
+// ==========================================================================
+
+import is from './is';
+
+// Clone nested objects
+export function cloneDeep(object) {
+    return JSON.parse(JSON.stringify(object));
+}
+
+// Get a nested value in an object
+export function getDeep(object, path) {
+    return path.split('.').reduce((obj, key) => obj && obj[key], object);
+}
+
+// Deep extend destination object with N more objects
+export function extend(target = {}, ...sources) {
+    if (!sources.length) {
+        return target;
+    }
+
+    const source = sources.shift();
+
+    if (!is.object(source)) {
+        return target;
+    }
+
+    Object.keys(source).forEach(key => {
+        if (is.object(source[key])) {
+            if (!Object.keys(target).includes(key)) {
+                Object.assign(target, { [key]: {} });
+            }
+
+            extend(target[key], source[key]);
+        } else {
+            Object.assign(target, { [key]: source[key] });
+        }
+    });
+
+    return extend(target, ...sources);
+}

src/js/utils/strings.js

@@ -0,0 +1,85 @@
+// ==========================================================================
+// String utils
+// ==========================================================================
+
+import is from './is';
+
+// Generate a random ID
+export function generateId(prefix) {
+    return `${prefix}-${Math.floor(Math.random() * 10000)}`;
+}
+
+// Format string
+export function format(input, ...args) {
+    if (is.empty(input)) {
+        return input;
+    }
+
+    return input.toString().replace(/{(\d+)}/g, (match, i) => args[i].toString());
+}
+
+// Get percentage
+export function getPercentage(current, max) {
+    if (current === 0 || max === 0 || Number.isNaN(current) || Number.isNaN(max)) {
+        return 0;
+    }
+
+    return (current / max * 100).toFixed(2);
+}
+
+// Replace all occurances of a string in a string
+export function replaceAll(input = '', find = '', replace = '') {
+    return input.replace(
+        new RegExp(find.toString().replace(/([.*+?^=!:${}()|[\]/\\])/g, '\\$1'), 'g'),
+        replace.toString(),
+    );
+}
+
+// Convert to title case
+export function toTitleCase(input = '') {
+    return input.toString().replace(/\w\S*/g, text => text.charAt(0).toUpperCase() + text.substr(1).toLowerCase());
+}
+
+// Convert string to pascalCase
+export function toPascalCase(input = '') {
+    let string = input.toString();
+
+    // Convert kebab case
+    string = replaceAll(string, '-', ' ');
+
+    // Convert snake case
+    string = replaceAll(string, '_', ' ');
+
+    // Convert to title case
+    string = toTitleCase(string);
+
+    // Convert to pascal case
+    return replaceAll(string, ' ', '');
+}
+
+// Convert string to pascalCase
+export function toCamelCase(input = '') {
+    let string = input.toString();
+
+    // Convert to pascal case
+    string = toPascalCase(string);
+
+    // Convert first character to lowercase
+    return string.charAt(0).toLowerCase() + string.slice(1);
+}
+
+// Remove HTML from a string
+export function stripHTML(source) {
+    const fragment = document.createDocumentFragment();
+    const element = document.createElement('div');
+    fragment.appendChild(element);
+    element.innerHTML = source;
+    return fragment.firstChild.innerText;
+}
+
+// Like outerHTML, but also works for DocumentFragment
+export function getHTML(element) {
+    const wrapper = document.createElement('div');
+    wrapper.appendChild(element);
+    return wrapper.innerHTML;
+}

src/js/utils/time.js

@@ -0,0 +1,36 @@
+// ==========================================================================
+// Time utils
+// ==========================================================================
+
+import is from './is';
+
+// Time helpers
+export const getHours = value => parseInt((value / 60 / 60) % 60, 10);
+export const getMinutes = value => parseInt((value / 60) % 60, 10);
+export const getSeconds = value => parseInt(value % 60, 10);
+
+// Format time to UI friendly string
+export function formatTime(time = 0, displayHours = false, inverted = false) {
+    // Bail if the value isn't a number
+    if (!is.number(time)) {
+        return formatTime(null, displayHours, inverted);
+    }
+
+    // Format time component to add leading zero
+    const format = value => `0${value}`.slice(-2);
+
+    // Breakdown to hours, mins, secs
+    let hours = getHours(time);
+    const mins = getMinutes(time);
+    const secs = getSeconds(time);
+
+    // Do we need to display hours?
+    if (displayHours || hours > 0) {
+        hours = `${hours}:`;
+    } else {
+        hours = '';
+    }
+
+    // Render
+    return `${inverted && time > 0 ? '-' : ''}${hours}${format(mins)}:${format(secs)}`;
+}

src/js/utils/urls.js

@@ -0,0 +1,39 @@
+// ==========================================================================
+// URL utils
+// ==========================================================================
+
+import is from './is';
+
+/**
+ * Parse a string to a URL object
+ * @param {string} input - the URL to be parsed
+ * @param {boolean} safe - failsafe parsing
+ */
+export function parseUrl(input, safe = true) {
+    let url = input;
+
+    if (safe) {
+        const parser = document.createElement('a');
+        parser.href = url;
+        url = parser.href;
+    }
+
+    try {
+        return new URL(url);
+    } catch (e) {
+        return null;
+    }
+}
+
+// Convert object to URLSearchParams
+export function buildUrlParams(input) {
+    const params = new URLSearchParams();
+
+    if (is.object(input)) {
+        Object.entries(input).forEach(([key, value]) => {
+            params.set(key, value);
+        });
+    }
+
+    return params;
+}

src/sass/components/captions.scss

@@ -21,7 +21,7 @@
     transition: transform 0.4s ease-in-out;
     width: 100%;
 
-    span {
+    .plyr__caption {
         background: $plyr-captions-bg;
         border-radius: 2px;
         box-decoration-break: clone;

src/sass/components/control.scss

@@ -34,10 +34,10 @@
 }
 
 // Change icons on state change
-.plyr__control[aria-pressed='false'] .icon--pressed,
-.plyr__control[aria-pressed='true'] .icon--not-pressed,
-.plyr__control[aria-pressed='false'] .label--pressed,
-.plyr__control[aria-pressed='true'] .label--not-pressed {
+.plyr__control:not(.plyr__control--pressed) .icon--pressed,
+.plyr__control.plyr__control--pressed .icon--not-pressed,
+.plyr__control:not(.plyr__control--pressed) .label--pressed,
+.plyr__control.plyr__control--pressed .label--not-pressed {
     display: none;
 }
 

src/sass/components/progress.scss

@@ -5,16 +5,21 @@
 .plyr__progress {
     display: flex;
     flex: 1;
-    position: relative;
-    margin-right: $plyr-range-thumb-height;
     left: $plyr-range-thumb-height / 2;
+    margin-right: $plyr-range-thumb-height;
+    position: relative;
+
+    input[type='range'],
+    &__buffer {
+        margin-left: -($plyr-range-thumb-height / 2);
+        margin-right: -($plyr-range-thumb-height / 2);
+        // Offset the range thumb in order to be able to calculate the relative progress (#954)
+        width: calc(100% + #{$plyr-range-thumb-height});
+    }
 
     input[type='range'] {
         position: relative;
         z-index: 2;
-        // Offset the range thumb in order to be able to calculate the relative progress (#954)
-        width: calc(100% + #{$plyr-range-thumb-height}) !important;
-        margin: 0 -#{$plyr-range-thumb-height / 2} !important;
     }
 
     // Seek tooltip to show time
@@ -24,18 +29,17 @@
     }
 }
 
-.plyr__progress--buffer {
+.plyr__progress__buffer {
     -webkit-appearance: none; /* stylelint-disable-line */
     background: transparent;
     border: 0;
     border-radius: 100px;
     height: $plyr-range-track-height;
     left: 0;
-    margin: -($plyr-range-track-height / 2) 0 0;
+    margin-top: -($plyr-range-track-height / 2);
     padding: 0;
     position: absolute;
     top: 50%;
-    width: 100%;
 
     &::-webkit-progress-bar {
         background: transparent;
@@ -63,17 +67,17 @@
     }
 }
 
-.plyr--video .plyr__progress--buffer {
+.plyr--video .plyr__progress__buffer {
     box-shadow: 0 1px 1px rgba(#000, 0.15);
     color: $plyr-video-progress-buffered-bg;
 }
 
-.plyr--audio .plyr__progress--buffer {
+.plyr--audio .plyr__progress__buffer {
     color: $plyr-audio-progress-buffered-bg;
 }
 
 // Loading state
-.plyr--loading .plyr__progress--buffer {
+.plyr--loading .plyr__progress__buffer {
     animation: plyr-progress 1s linear infinite;
     background-image: linear-gradient(
         -45deg,
@@ -90,10 +94,10 @@
     color: transparent;
 }
 
-.plyr--video.plyr--loading .plyr__progress--buffer {
+.plyr--video.plyr--loading .plyr__progress__buffer {
     background-color: $plyr-video-progress-buffered-bg;
 }
 
-.plyr--audio.plyr--loading .plyr__progress--buffer {
+.plyr--audio.plyr--loading .plyr__progress__buffer {
     background-color: $plyr-audio-progress-buffered-bg;
 }

src/sass/plyr.scss

@@ -31,12 +31,12 @@
 @import 'components/controls';
 @import 'components/embed';
 @import 'components/menus';
-@import 'components/progress';
-@import 'components/poster';
 @import 'components/sliders';
+@import 'components/poster';
 @import 'components/times';
 @import 'components/tooltips';
 @import 'components/video';
+@import 'components/progress';
 @import 'components/volume';
 
 @import 'states/fullscreen';