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-rw-r--r--testing/web-platform/tests/encrypted-media/polyfill/edge-keystatuses.js144
1 files changed, 0 insertions, 144 deletions
diff --git a/testing/web-platform/tests/encrypted-media/polyfill/edge-keystatuses.js b/testing/web-platform/tests/encrypted-media/polyfill/edge-keystatuses.js
deleted file mode 100644
index 886144459..000000000
--- a/testing/web-platform/tests/encrypted-media/polyfill/edge-keystatuses.js
+++ /dev/null
@@ -1,144 +0,0 @@
-(function() {
-
- // This polyfill fixes the following problems with Edge browser
- // (1) Various maplike methods for keystatuses are not supported or suported incorrectly
- // (2) Key Ids exposed in keystatuses are incorrect (byte swaps)
- if ( navigator.userAgent.toLowerCase().indexOf('edge') > -1 ) {
- ///////////////////////////////////////////////////////////////////////////////////////////////
- // The following function is the core of this JS patch. The rest of this file is infrastructure
- // required to enable this function
- ///////////////////////////////////////////////////////////////////////////////////////////////
- function _proxyKeyStatusesChange( event ) {
- this._keyStatuses.clear();
- var keyStatuses = [];
- this._session.keyStatuses.forEach( function( keyId, status ) {
- var newKeyId = new Uint8Array( keyId );
-
- function swap( arr, a, b ) { var t = arr[a]; arr[a] = arr[b]; arr[b] = t; }
- swap( newKeyId, 0, 3 );
- swap( newKeyId, 1, 2 );
- swap( newKeyId, 4, 5 );
- swap( newKeyId, 6, 7 );
-
- keyStatuses.push( { key: newKeyId, status: status, ord: arrayBufferAsString( newKeyId ) } );
- });
-
- function lexicographical( a, b ) { return a < b ? -1 : a === b ? 0 : +1; }
- function lexicographicalkey( a, b ) { return lexicographical( a.ord, b.ord ); }
-
- keyStatuses.sort( lexicographicalkey ).forEach( function( obj ) {
- this._keyStatuses._set( obj.key, obj.status );
- }.bind( this ) );
-
- this.dispatchEvent( event );
- };
- ///////////////////////////////////////////////////////////////////////////////////////////////
-
- // Override MediaKeys.createSession
- var _mediaKeysCreateSession = MediaKeys.prototype.createSession;
- MediaKeys.prototype.createSession = function ( sessionType ) {
- return new MediaKeySession( _mediaKeysCreateSession.call( this, sessionType ) );
- };
-
- // MediaKeySession proxy
- function MediaKeySession( session ) {
- EventTarget.call( this );
- this._session = session;
- this._keyStatuses = new MediaKeyStatusMap();
- this._session.addEventListener("keystatuseschange",this._onKeyStatusesChange.bind(this));
- this._session.addEventListener("message",this.dispatchEvent.bind(this));
- }
-
- MediaKeySession.prototype = Object.create( EventTarget.prototype );
-
- Object.defineProperties( MediaKeySession.prototype, {
- sessionId: { get: function() { return this._session.sessionId; } },
- expiration: { get: function() { return this._session.expiration; } },
- closed: { get: function() { return this._session.closed; } },
- keyStatuses:{ get: function() { return this._keyStatuses; } }
- });
-
- [ "generateRequest", "load", "update", "remove", "close" ].forEach( function( fnname ) {
- MediaKeySession.prototype[ fnname ] = function() {
- return window.MediaKeySession.prototype[ fnname ].apply( this._session, arguments );
- }
- } );
-
- MediaKeySession.prototype._onKeyStatusesChange = _proxyKeyStatusesChange;
-
- // MediaKeyStatusMap proxy
- //
- // We need a proxy class to replace the broken MediaKeyStatusMap one. We cannot use a
- // regular Map directly because we need get and has methods to compare by value not
- // as references.
- function MediaKeyStatusMap() { this._map = new Map(); }
-
- Object.defineProperties( MediaKeyStatusMap.prototype, {
- size: { get: function() { return this._map.size; } },
- forEach: { get: function() { return function( f ) { return this._map.forEach( f ); } } },
- entries: { get: function() { return function() { return this._map.entries(); } } },
- values: { get: function() { return function() { return this._map.values(); } } },
- keys: { get: function() { return function() { return this._map.keys(); } } },
- clear: { get: function() { return function() { return this._map.clear(); } } } } );
-
- MediaKeyStatusMap.prototype[ Symbol.iterator ] = function() { return this._map[ Symbol.iterator ]() };
-
- MediaKeyStatusMap.prototype.has = function has( keyId ) {
- for ( var k of this._map.keys() ) { if ( arrayBufferEqual( k, keyId ) ) return true; }
- return false;
- };
-
- MediaKeyStatusMap.prototype.get = function get( keyId ) {
- for ( var k of this._map.entries() ) { if ( arrayBufferEqual( k[ 0 ], keyId ) ) return k[ 1 ]; }
- };
-
- MediaKeyStatusMap.prototype._set = function _set( keyId, status ) {
- this._map.set( new Uint8Array( keyId ), status );
- };
-
- function arrayBufferEqual(buf1, buf2)
- {
- if (buf1.byteLength !== buf2.byteLength) return false;
- var a1 = Array.from( new Int8Array(buf1) ), a2 = Array.from( new Int8Array(buf2) );
- return a1.every( function( x, i ) { return x === a2[i]; } );
- }
-
- // EventTarget
- function EventTarget(){
- this.listeners = {};
- };
-
- EventTarget.prototype.listeners = null;
-
- EventTarget.prototype.addEventListener = function(type, callback){
- if(!(type in this.listeners)) {
- this.listeners[type] = [];
- }
- this.listeners[type].push(callback);
- };
-
- EventTarget.prototype.removeEventListener = function(type, callback){
- if(!(type in this.listeners)) {
- return;
- }
- var stack = this.listeners[type];
- for(var i = 0, l = stack.length; i < l; i++){
- if(stack[i] === callback){
- stack.splice(i, 1);
- return this.removeEventListener(type, callback);
- }
- }
- };
-
- EventTarget.prototype.dispatchEvent = function(event){
- if(!(event.type in this.listeners)) {
- return;
- }
- var stack = this.listeners[event.type];
- event.target = this;
- for(var i = 0, l = stack.length; i < l; i++) {
- stack[i].call(this, event);
- }
- };
- }
-})();