Apple tv plus (#541)

* add support for traversing shadowRoot's; enables apple tv support.

inject.js

@@ -180,7 +180,7 @@
       var observer=new MutationObserver((mutations) => {
         mutations.forEach((mutation) => {
           if (mutation.type === 'attributes' && (mutation.attributeName === 'src' || mutation.attributeName === 'currentSrc')){
-            var controller = document.querySelector(`div[data-vscid="${this.id}"]`);
+            var controller = getController(this.id)
             if(!controller){
               return;
             }
@@ -268,6 +268,9 @@
           // insert before parent to bypass overlay
           this.parent.parentElement.insertBefore(fragment, this.parent);
           break;
+        case (location.hostname == 'tv.apple.com'):
+          // insert after parent for correct stacking context
+          this.parent.getRootNode().querySelector('.scrim').prepend(fragment);
 
         default:
           // Note: when triggered via a MutationRecord, it's possible that the
@@ -333,6 +336,32 @@
       return true;
     }
   }
+  function getShadow(parent) {
+    let result = []
+    function getChild(parent) {
+      if (parent.firstElementChild) {
+        var child = parent.firstElementChild
+        do {
+          result = result.concat(child)
+          getChild(child)
+          if (child.shadowRoot) {
+            result = result.concat(getShadow(child.shadowRoot))
+          }
+          child = child.nextElementSibling
+        } while (child)
+      }
+    }
+    getChild(parent)
+    return result
+  }
+  function getController(id){
+    return getShadow(document.body).filter(x => {
+      return x.attributes['data-vscid'] &&
+      x.tagName == 'DIV' &&
+      x.attributes['data-vscid'].value==`${id}`
+    })[0]
+  }
+
   function initializeNow(document) {
       if (!tc.settings.enabled) return;
       // enforce init-once due to redundant callers
@@ -380,7 +409,7 @@
           }
 
           // Ignore keydown event if typing in a page without vsc
-          if (!document.querySelector(".vsc-controller")) {
+          if (!getShadow(document.body).filter(x => x.tagName == 'vsc-controller')) {
             return false;
           }
 
@@ -424,6 +453,8 @@
         // Process the DOM nodes lazily
         requestIdleCallback(_ => {
           mutations.forEach(function(mutation) {
+            switch (mutation.type) {
+              case 'childList':
                 forEach.call(mutation.addedNodes, function(node) {
                   if (typeof node === "function")
                     return;
@@ -434,10 +465,29 @@
                     return;
                   checkForVideo(node, node.parentNode || mutation.target, false);
                 });
+                break;
+              case 'attributes':
+                if (mutation.target.attributes['aria-hidden'].value == "false") {
+                  var flattenedNodes = getShadow(document.body)
+                  var node = flattenedNodes.filter(x => x.tagName == 'VIDEO')[0]
+                  if (node) {
+                    var oldController = flattenedNodes.filter(x => x.classList.contains('vsc-controller'))[0]
+                    if (oldController) {
+                      oldController.remove()
+                    }
+                    checkForVideo(node, node.parentNode || mutation.target, true);
+                  }
+                }
+                break;
+            };
           });
         }, {timeout: 1000});
       });
-      observer.observe(document, { childList: true, subtree: true });
+      observer.observe(document, {
+        attributeFilter: ['aria-hidden'],
+        childList: true,
+        subtree: true
+      });
 
       if (tc.settings.audioBoolean) {
         var mediaTags = document.querySelectorAll('video,audio');
@@ -459,9 +509,11 @@
 
   function runAction(action, document, value, e) {
     if (tc.settings.audioBoolean) {
-      var mediaTags = document.querySelectorAll('video,audio');
+      var mediaTags = getShadow(document.body).filter(x => {
+        return x.tagName == 'AUDIO' || x.tagName == 'VIDEO'
+      });
     } else {
-      var mediaTags = document.querySelectorAll('video');
+      var mediaTags = getShadow(document.body).filter(x => x.tagName == 'VIDEO');
     }
 
     mediaTags.forEach = Array.prototype.forEach;
@@ -473,8 +525,7 @@
 
     mediaTags.forEach(function(v) {
       var id = v.dataset['vscid'];
-      var controller = document.querySelector(`div[data-vscid="${id}"]`);
+      var controller = getController(id)
-
       // Don't change video speed if the video has a different controller
       if (e && !(targetController == controller)) {
         return;