Removed old media-internals page and rewrote it.

content/browser/resources/media/main/playerManager.js

+/**
+ * @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;
+}());