| // Copyright 2013 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. |
| |
| var ClientRenderer = (function() { |
| var ClientRenderer = function() { |
| this.playerListElement = document.getElementById('player-list'); |
| this.propertiesTable = |
| document.getElementById('property-table').querySelector('tbody'); |
| this.logTable = document.getElementById('log').querySelector('tbody'); |
| this.graphElement = document.getElementById('graphs'); |
| this.propertyName = document.getElementById('property-name'); |
| |
| this.selectedPlayer = null; |
| this.selectedAudioComponentType = null; |
| this.selectedAudioComponentId = null; |
| this.selectedAudioCompontentData = null; |
| |
| this.selectedPlayerLogIndex = 0; |
| |
| this.filterFunction = function() { return true; }; |
| this.filterText = document.getElementById('filter-text'); |
| this.filterText.onkeyup = this.onTextChange_.bind(this); |
| |
| this.bufferCanvas = document.createElement('canvas'); |
| this.bufferCanvas.width = media.BAR_WIDTH; |
| this.bufferCanvas.height = media.BAR_HEIGHT; |
| |
| this.clipboardTextarea = document.getElementById('clipboard-textarea'); |
| this.clipboardButton = document.getElementById('copy-button'); |
| this.clipboardButton.onclick = this.copyToClipboard_.bind(this); |
| |
| this.hiddenKeys = ['component_id', 'component_type', 'owner_id']; |
| }; |
| |
| function removeChildren(element) { |
| while (element.hasChildNodes()) { |
| element.removeChild(element.lastChild); |
| } |
| }; |
| |
| function createButton(text, select_cb) { |
| var button = document.createElement('button'); |
| |
| button.appendChild(document.createTextNode(text)); |
| button.onclick = function() { |
| select_cb(); |
| }; |
| |
| return button; |
| }; |
| |
| ClientRenderer.prototype = { |
| /** |
| * Called when an audio component is added to the collection. |
| * @param componentType Integer AudioComponent enum value; must match values |
| * from the AudioLogFactory::AudioComponent enum. |
| * @param components The entire map of components (name -> dict). |
| */ |
| audioComponentAdded: function(componentType, components) { |
| this.redrawAudioComponentList_(componentType, components); |
| |
| // Redraw the component if it's currently selected. |
| if (this.selectedAudioComponentType == componentType && |
| this.selectedAudioComponentId && |
| this.selectedAudioComponentId in components) { |
| this.selectAudioComponent_( |
| componentType, this.selectedAudioComponentId, |
| components[this.selectedAudioComponentId]); |
| } |
| }, |
| |
| /** |
| * Called when an audio component is removed from the collection. |
| * @param componentType Integer AudioComponent enum value; must match values |
| * from the AudioLogFactory::AudioComponent enum. |
| * @param components The entire map of components (name -> dict). |
| */ |
| audioComponentRemoved: function(componentType, components) { |
| this.redrawAudioComponentList_(componentType, components); |
| |
| // Clear the component if it was previously currently selected. |
| if (this.selectedAudioComponentType == componentType && |
| !(this.selectedAudioComponentId in components)) { |
| this.selectAudioComponent_(null, null, {}); |
| } |
| }, |
| |
| /** |
| * Called when a player is added to the collection. |
| * @param players The entire map of id -> player. |
| * @param player_added The player that is added. |
| */ |
| playerAdded: function(players, playerAdded) { |
| this.redrawPlayerList_(players); |
| }, |
| |
| /** |
| * Called when a playre is removed from the collection. |
| * @param players The entire map of id -> player. |
| * @param player_added The player that was removed. |
| */ |
| playerRemoved: function(players, playerRemoved) { |
| this.redrawPlayerList_(players); |
| }, |
| |
| /** |
| * Called when a property on a player is changed. |
| * @param players The entire map of id -> player. |
| * @param player The player that had its property changed. |
| * @param key The name of the property that was changed. |
| * @param value The new value of the property. |
| */ |
| playerUpdated: function(players, player, key, value) { |
| if (player === this.selectedPlayer) { |
| this.drawProperties_(player.properties); |
| this.drawLog_(); |
| this.drawGraphs_(); |
| } |
| if (key === 'name' || key === 'url') { |
| this.redrawPlayerList_(players); |
| } |
| }, |
| |
| redrawAudioComponentList_: function(componentType, components) { |
| function redrawList(renderer, baseName, element) { |
| var fragment = document.createDocumentFragment(); |
| for (id in components) { |
| var li = document.createElement('li'); |
| var friendlyName = baseName + ' ' + id; |
| li.appendChild(createButton( |
| friendlyName, renderer.selectAudioComponent_.bind( |
| renderer, componentType, id, components[id], friendlyName))); |
| fragment.appendChild(li); |
| } |
| removeChildren(element); |
| element.appendChild(fragment); |
| } |
| |
| switch (componentType) { |
| case 0: |
| redrawList(this, 'Controller', document.getElementById( |
| 'audio-input-controller-list')); |
| break; |
| case 1: |
| redrawList(this, 'Controller', document.getElementById( |
| 'audio-output-controller-list')); |
| break; |
| case 2: |
| redrawList(this, 'Stream', document.getElementById( |
| 'audio-output-stream-list')); |
| break; |
| default: |
| break; |
| } |
| }, |
| |
| selectAudioComponent_: function( |
| componentType, componentId, componentData, friendlyName) { |
| this.selectedPlayer = null; |
| this.selectedAudioComponentType = componentType; |
| this.selectedAudioComponentId = componentId; |
| this.selectedAudioCompontentData = componentData; |
| this.drawProperties_(componentData); |
| removeChildren(this.logTable); |
| removeChildren(this.graphElement); |
| |
| removeChildren(this.propertyName); |
| this.propertyName.appendChild(document.createTextNode(friendlyName)); |
| }, |
| |
| redrawPlayerList_: function(players) { |
| var fragment = document.createDocumentFragment(); |
| for (id in players) { |
| var player = players[id]; |
| var usableName = player.properties.name || |
| player.properties.url || |
| 'Player ' + player.id; |
| |
| var li = document.createElement('li'); |
| li.appendChild(createButton( |
| usableName, this.selectPlayer_.bind(this, player))); |
| fragment.appendChild(li); |
| } |
| removeChildren(this.playerListElement); |
| this.playerListElement.appendChild(fragment); |
| }, |
| |
| selectPlayer_: function(player) { |
| this.selectedPlayer = player; |
| this.selectedPlayerLogIndex = 0; |
| this.selectedAudioComponentType = null; |
| this.selectedAudioComponentId = null; |
| this.selectedAudioCompontentData = null; |
| this.drawProperties_(player.properties); |
| |
| removeChildren(this.logTable); |
| removeChildren(this.graphElement); |
| this.drawLog_(); |
| this.drawGraphs_(); |
| removeChildren(this.propertyName); |
| this.propertyName.appendChild(document.createTextNode('Player')); |
| }, |
| |
| drawProperties_: function(propertyMap) { |
| removeChildren(this.propertiesTable); |
| var sortedKeys = Object.keys(propertyMap).sort(); |
| for (var i = 0; i < sortedKeys.length; ++i) { |
| var key = sortedKeys[i]; |
| if (this.hiddenKeys.indexOf(key) >= 0) |
| continue; |
| |
| var value = propertyMap[key]; |
| var row = this.propertiesTable.insertRow(-1); |
| var keyCell = row.insertCell(-1); |
| var valueCell = row.insertCell(-1); |
| |
| keyCell.appendChild(document.createTextNode(key)); |
| valueCell.appendChild(document.createTextNode(value)); |
| } |
| }, |
| |
| appendEventToLog_: function(event) { |
| if (this.filterFunction(event.key)) { |
| var row = this.logTable.insertRow(-1); |
| |
| var timestampCell = row.insertCell(-1); |
| timestampCell.classList.add('timestamp'); |
| timestampCell.appendChild(document.createTextNode( |
| util.millisecondsToString(event.time))); |
| row.insertCell(-1).appendChild(document.createTextNode(event.key)); |
| row.insertCell(-1).appendChild(document.createTextNode(event.value)); |
| } |
| }, |
| |
| drawLog_: function() { |
| var toDraw = this.selectedPlayer.allEvents.slice( |
| this.selectedPlayerLogIndex); |
| toDraw.forEach(this.appendEventToLog_.bind(this)); |
| this.selectedPlayerLogIndex = this.selectedPlayer.allEvents.length; |
| }, |
| |
| drawGraphs_: function() { |
| function addToGraphs(name, graph, graphElement) { |
| var li = document.createElement('li'); |
| li.appendChild(graph); |
| li.appendChild(document.createTextNode(name)); |
| graphElement.appendChild(li); |
| } |
| |
| var url = this.selectedPlayer.properties.url; |
| if (!url) { |
| return; |
| } |
| |
| var cache = media.cacheForUrl(url); |
| |
| var player = this.selectedPlayer; |
| var props = player.properties; |
| |
| var cacheExists = false; |
| var bufferExists = false; |
| |
| if (props['buffer_start'] !== undefined && |
| props['buffer_current'] !== undefined && |
| props['buffer_end'] !== undefined && |
| props['total_bytes'] !== undefined) { |
| this.drawBufferGraph_(props['buffer_start'], |
| props['buffer_current'], |
| props['buffer_end'], |
| props['total_bytes']); |
| bufferExists = true; |
| } |
| |
| if (cache) { |
| if (player.properties['total_bytes']) { |
| cache.size = Number(player.properties['total_bytes']); |
| } |
| cache.generateDetails(); |
| cacheExists = true; |
| |
| } |
| |
| if (!this.graphElement.hasChildNodes()) { |
| if (bufferExists) { |
| addToGraphs('buffer', this.bufferCanvas, this.graphElement); |
| } |
| if (cacheExists) { |
| addToGraphs('cache read', cache.readCanvas, this.graphElement); |
| addToGraphs('cache write', cache.writeCanvas, this.graphElement); |
| } |
| } |
| }, |
| |
| drawBufferGraph_: function(start, current, end, size) { |
| var ctx = this.bufferCanvas.getContext('2d'); |
| var width = this.bufferCanvas.width; |
| var height = this.bufferCanvas.height; |
| ctx.fillStyle = '#aaa'; |
| ctx.fillRect(0, 0, width, height); |
| |
| var scale_factor = width / size; |
| var left = start * scale_factor; |
| var middle = current * scale_factor; |
| var right = end * scale_factor; |
| |
| ctx.fillStyle = '#a0a'; |
| ctx.fillRect(left, 0, middle - left, height); |
| ctx.fillStyle = '#aa0'; |
| ctx.fillRect(middle, 0, right - middle, height); |
| }, |
| |
| copyToClipboard_: function() { |
| var properties = this.selectedAudioCompontentData || |
| this.selectedPlayer.properties || false; |
| if (!properties) { |
| return; |
| } |
| var stringBuffer = []; |
| |
| for (var key in properties) { |
| var value = properties[key]; |
| stringBuffer.push(key.toString()); |
| stringBuffer.push(': '); |
| stringBuffer.push(value.toString()); |
| stringBuffer.push('\n'); |
| } |
| |
| this.clipboardTextarea.value = stringBuffer.join(''); |
| this.clipboardTextarea.classList.remove('hiddenClipboard'); |
| this.clipboardTextarea.focus(); |
| this.clipboardTextarea.select(); |
| |
| // Hide the clipboard element when it loses focus. |
| this.clipboardTextarea.onblur = function(event) { |
| setTimeout(function(element) { |
| event.target.classList.add('hiddenClipboard'); |
| }, 0); |
| }; |
| }, |
| |
| onTextChange_: function(event) { |
| var text = this.filterText.value.toLowerCase(); |
| var parts = text.split(',').map(function(part) { |
| return part.trim(); |
| }).filter(function(part) { |
| return part.trim().length > 0; |
| }); |
| |
| this.filterFunction = function(text) { |
| text = text.toLowerCase(); |
| return parts.length === 0 || parts.some(function(part) { |
| return text.indexOf(part) != -1; |
| }); |
| }; |
| |
| if (this.selectedPlayer) { |
| removeChildren(this.logTable); |
| this.selectedPlayerLogIndex = 0; |
| this.drawLog_(); |
| } |
| }, |
| }; |
| |
| return ClientRenderer; |
| })(); |