Remove old cc-frame-viewer now that it is upstreamed into trace_viewer

tools/cc-frame-viewer/src/model/layer_tree_host_impl.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.
- */
-'use strict';
-
-base.require('base.bbox2');
-base.require('model.constants');
-base.require('model.tile');
-base.require('model.layer_tree_impl');
-
-base.exportTo('ccfv.model', function() {
-
-  var constants = ccfv.model.constants;
-
-  /**
-   * Represents the history of a specific cc::LayerTreeHostImpl over time.
-   *
-   * @constructor
-   */
-  function LayerTreeHostImplHistory(id) {
-    this.id = id;
-    this.lthiSnapshots = [];
-
-    this.allTileHistories_ = {};
-    this.allTilesBBox_ = undefined;
-
-    this.allLayerImplHistories_ = {};
-  };
-
-  LayerTreeHostImplHistory.prototype = {
-    createNewLTHI: function() {
-      var snapshotNumber = this.lthiSnapshots.length + 1;
-      var lthi = new LayerTreeHostImpl(this, snapshotNumber);
-      this.lthiSnapshots.push(lthi);
-      this.allTilesBBox_ = undefined;
-      this.allContentsScales_ = undefined;
-      return lthi;
-    },
-
-    getOrCreateTileHistory: function(tileID) {
-      if (!this.allTileHistories_[tileID])
-        this.allTileHistories_[tileID] = new ccfv.model.TileHistory(tileID);
-      return this.allTileHistories_[tileID];
-    },
-
-    getOrCreateLayerImplHistory: function(layerID) {
-      if (!this.allLayerImplHistories_[layerID])
-        this.allLayerImplHistories_[layerID] =
-            new ccfv.model.LayerImplHistory(layerID);
-      return this.allLayerImplHistories_[layerID];
-    },
-
-    get allContentsScales() {
-      if (this.allContentsScales_ !== undefined)
-        return this.allContentsScales_;
-
-      var scales = {};
-      for (var tileID in this.allTileHistories_) {
-        var tileHistory = this.allTileHistories_[tileID];
-        scales[tileHistory.contentsScale] = true;
-      }
-      this.allContentsScales_ = base.dictionaryKeys(scales);
-      return this.allContentsScales_;
-    },
-
-    get allTilesBBox() {
-      if (!this.allTilesBBox_) {
-        var bbox = new base.BBox2();
-        for (var tileID in this.allTileHistories_) {
-          var tileHistory = this.allTileHistories_[tileID];
-          for (var snapshotNumber in tileHistory.tilesBySnapshotNumber) {
-            var tile = tileHistory.tilesBySnapshotNumber[snapshotNumber];
-            if (tile.priority[0].current_screen_quad)
-              bbox.addQuad(tile.priority[0].current_screen_quad);
-            if (tile.priority[1].current_screen_quad)
-              bbox.addQuad(tile.priority[1].current_screen_quad);
-          }
-        }
-        this.allTilesBBox_ = bbox;
-      }
-      return this.allTilesBBox_;
-    },
-  };
-
-  /**
-   * Represents a snapshot of the cc::LayerTreeHostImpl at an instant in time.
-   *
-   * @constructor
-   */
-  function LayerTreeHostImpl(history, snapshotNumber) {
-    this.history = history;
-    this.snapshotNumber = snapshotNumber;
-    this.deviceViewportSize = {}
-
-    this.allTiles = [];
-
-    // These fields are affected by the rebuildIfNeeded_() flow.
-    this.pendingTree = new ccfv.model.LayerTreeImpl(
-        this, constants.PENDING_TREE);
-    this.activeTree = new ccfv.model.LayerTreeImpl(
-        this, constants.ACTIVE_TREE);
-
-    this.tilesForTree_ = undefined;
-    this.inactiveTiles_ = [];
-  }
-
-  LayerTreeHostImpl.prototype = {
-    get id() {
-      return this.history.id;
-    },
-
-    getTree: function(whichTree) {
-      if (whichTree === constants.ACTIVE_TREE)
-        return this.activeTree;
-      else if (whichTree === constants.PENDING_TREE)
-        return this.pendingTree;
-      else
-        throw new Error('Active or pending only.');
-    },
-
-    getOrCreateTile: function(tileID) {
-      var tileHistory = this.history.getOrCreateTileHistory(tileID);
-      var tile = tileHistory.getOrCreateTileForLTHI(this);
-      this.allTiles.push(tile);
-
-      this.activeTree.setTilesDirty();
-      this.pendingTree.setTilesDirty();
-      this.tilesForTree_ = undefined;
-      this.inactiveTiles_ = undefined;
-
-      return tile;
-    },
-
-    get inactiveTiles() {
-      if (this.inactiveTiles_ === undefined)
-        this.rebuildTiles_();
-      return this.inactiveTiles_;
-    },
-
-    getTilesForTree: function(which_tree) {
-      if (this.tilesForTree_ === undefined)
-        this.rebuildTiles_();
-      return this.tilesForTree_[which_tree];
-    },
-
-    rebuildTiles_: function()  {
-      this.tilesForTree_ = [[], []];
-      this.inactiveTiles_ = [];
-      this.allTiles.forEach(function(tile) {
-        if (tile.priority[constants.ACTIVE_TREE].is_live)
-          this.tilesForTree_[constants.ACTIVE_TREE].push(tile);
-        if (tile.priority[constants.PENDING_TREE].is_live)
-          this.tilesForTree_[constants.PENDING_TREE].push(tile);
-        if (tile.priority[constants.PENDING_TREE].is_live == false &&
-            tile.priority[constants.ACTIVE_TREE].is_live == false)
-          this.inactiveTiles_.push(tile);
-      }, this);
-    },
-  };
-
-  return {
-    LayerTreeHostImpl: LayerTreeHostImpl,
-    LayerTreeHostImplHistory: LayerTreeHostImplHistory
-  };
-});