src/third_party/trace-viewer/src/cc/layer_tree_impl.js

   1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 'use strict';
   6
   7 tvcm.require('tracing.trace_model.object_instance');
   8 tvcm.require('cc.layer_impl');
   9
  10 tvcm.exportTo('cc', function() {
  11   var ObjectSnapshot = tracing.trace_model.ObjectSnapshot;
  12
  13   /**
  14    * @constructor
  15    */
  16   function LayerTreeImplSnapshot() {
  17     ObjectSnapshot.apply(this, arguments);
  18   }
  19
  20   LayerTreeImplSnapshot.prototype = {
  21     __proto__: ObjectSnapshot.prototype,
  22
  23     preInitialize: function() {
  24       cc.preInitializeObject(this);
  25       this.layerTreeHostImpl = undefined;
  26       this.whichTree = undefined;
  27     },
  28
  29     initialize: function() {
  30       cc.moveRequiredFieldsFromArgsToToplevel(
  31           this, ['rootLayer',
  32             'renderSurfaceLayerList']);
  33       this.rootLayer.layerTreeImpl = this;
  34     },
  35
  36     iterLayers: function(func, thisArg) {
  37       var visitedLayers = {};
  38       function visitLayer(layer, depth, isMask, isReplica) {
  39         if (visitedLayers[layer.layerId])
  40           return;
  41         visitedLayers[layer.layerId] = true;
  42         func.call(thisArg, layer, depth, isMask, isReplica);
  43         for (var i = 0; i < layer.children.length; i++)
  44           visitLayer(layer.children[i], depth + 1);
  45         if (layer.maskLayer)
  46           visitLayer(layer.maskLayer, depth + 1, true, false);
  47         if (layer.replicaLayer)
  48           visitLayer(layer.replicaLayer, depth + 1, false, true);
  49       }
  50       visitLayer(this.rootLayer, 0, false, false);
  51     },
  52     findLayerWithId: function(id) {
  53       var foundLayer = undefined;
  54       function visitLayer(layer) {
  55         if (layer.layerId == id)
  56           foundLayer = layer;
  57       }
  58       this.iterLayers(visitLayer);
  59       return foundLayer;
  60     }
  61   };
  62
  63   ObjectSnapshot.register('cc::LayerTreeImpl', LayerTreeImplSnapshot);
  64
  65   return {
  66     LayerTreeImplSnapshot: LayerTreeImplSnapshot
  67   };
  68 });