Added support for picture-in-picture in Chrome

src/js/config/states.js

@@ -0,0 +1,10 @@
+// ==========================================================================
+// Plyr states
+// ==========================================================================
+
+export const pip = {
+    active: 'picture-in-picture',
+    inactive: 'inline',
+};
+
+export default { pip };

src/js/plyr.js

@@ -7,6 +7,7 @@
 
 import captions from './captions';
 import defaults from './config/defaults';
+import { pip } from './config/states';
 import { getProviderByUrl, providers, types } from './config/types';
 import Console from './console';
 import controls from './controls';
@@ -896,21 +897,28 @@ class Plyr {
      * TODO: detect outside changes
      */
     set pip(input) {
-        const states = {
-            pip: 'picture-in-picture',
-            inline: 'inline',
-        };
-
         // Bail if no support
         if (!support.pip) {
             return;
         }
 
         // Toggle based on current state if not passed
-        const toggle = is.boolean(input) ? input : this.pip === states.inline;
+        const toggle = is.boolean(input) ? input : !this.pip;
 
         // Toggle based on current state
-        this.media.webkitSetPresentationMode(toggle ? states.pip : states.inline);
+        // Safari
+        if (is.function(this.media.webkitSetPresentationMode)) {
+            this.media.webkitSetPresentationMode(toggle ? pip.active : pip.inactive);
+        }
+
+        // Chrome
+        if (is.function(this.media.requestPictureInPicture)) {
+            if (!this.pip && toggle) {
+                this.media.requestPictureInPicture();
+            } else if (this.pip && !toggle) {
+                document.exitPictureInPicture();
+            }
+        }
     }
 
     /**
@@ -921,7 +929,13 @@ class Plyr {
             return null;
         }
 
-        return this.media.webkitPresentationMode;
+        // Safari
+        if (!is.empty(this.media.webkitPresentationMode)) {
+            return this.media.webkitPresentationMode === pip.active;
+        }
+
+        // Chrome
+        return this.media === document.pictureInPictureElement;
     }
 
     /**

src/js/support.js

@@ -36,8 +36,26 @@ const support = {
     },
 
     // Picture-in-picture support
-    // Safari only currently
-    pip: (() => !browser.isIPhone && is.function(createElement('video').webkitSetPresentationMode))(),
+    // Safari & Chrome only currently
+    pip: (() => {
+        if (browser.isIPhone) {
+            return false;
+        }
+
+        // Safari
+        // https://developer.apple.com/documentation/webkitjs/adding_picture_in_picture_to_your_safari_media_controls
+        if (is.function(createElement('video').webkitSetPresentationMode)) {
+            return true;
+        }
+
+        // Chrome
+        // https://developers.google.com/web/updates/2018/10/watch-video-using-picture-in-picture
+        if (document.pictureInPictureEnabled && !createElement('video').disablePictureInPicture) {
+            return true;
+        }
+
+        return false;
+    })(),
 
     // Airplay support
     // Safari only currently