Removed old media-internals page and rewrote it.

content/browser/resources/media/new/player_manager.js

+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+
+/**
+ * @fileoverview Keeps track of all the existing
+ * PlayerProperty objects and is the entry-point for messages from the backend.
+ */
+var PlayerManager = (function () {
+  "use strict";
+
+  function PlayerManager() {
+    this.players = {};
+    this.renderman = new RenderManager(this);
+
+    var removeCheckbox = document.querySelector("#removal-checkbox");
+    this.shouldRemovePlayer = function () {
+      return removeCheckbox.checked;
+    };
+    removeCheckbox.onclick = function () {
+      if (removeCheckbox.checked) {
+        goog.object.forEach(this.players, function (playerInfo, id) {
+          if (playerInfo.toRemove) {
+            this.removePlayer(id);
+          }
+        }, this);
+      }
+    }.bind(this);
+  }
+
+
+  /**
+   * Adds a player to the list of players to manage.
+   */
+  PlayerManager.prototype.addPlayer = function (id) {
+    if (this.players[id]) {
+      return;
+    }
+    // Make the PlayerProperty and add it to the mapping
+    this.players[id] = new PlayerInfo(id);
+
+    this.renderman.redrawList();
+  };
+
+  PlayerManager.prototype.removePlayer = function (id) {
+    if (this.shouldRemovePlayer()) {
+      delete this.players[id];
+    } else if (this.players[id]) {
+      this.players[id].toRemove = true;
+    }
+    this.renderman.redrawList();
+  };
+
+
+  PlayerManager.prototype.selectPlayer = function (id) {
+    if (!this.players[id]) {
+      throw new Error("[selectPlayer] Id " + id + " does not exist.");
+    }
+
+    this.renderman.select(id);
+  };
+
+  PlayerManager.prototype.updatePlayerInfoNoRecord =
+    function (id, timestamp, key, value) {
+      if (!this.players[id]) {
+        console.error("[updatePlayerInfo] Id " + id +
+          " does not exist");
+        return;
+      }
+
+      this.players[id].addPropertyNoRecord(timestamp, key, value);
+
+
+      // If we can potentially rename the player, do so.
+      if (key === 'name' || key === 'url') {
+        this.renderman.redrawList();
+      }
+
+      this.renderman.update();
+    };
+
+  PlayerManager.prototype.updatePlayerInfo =
+    function (id, timestamp, key, value) {
+      if (!this.players[id]) {
+        console.error("[updatePlayerInfo] Id " + id +
+          " does not exist");
+        return;
+      }
+
+      this.players[id].addProperty(timestamp, key, value);
+
+
+      // If we can potentially rename the player, do so.
+      if (key === 'name' || key === 'url') {
+        this.renderman.redrawList();
+      }
+
+      this.renderman.update();
+    };
+
+  return PlayerManager;
+}());