Source/WebCore/inspector/front-end/ScopeChainSidebarPane.js

   1 /*
   2  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
   3  * Copyright (C) 2011 Google Inc. All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
  15  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  17  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
  18  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  19  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  20  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  21  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  22  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  24  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  25  */
  26
  27 WebInspector.ScopeChainSidebarPane = function()
  28 {
  29     WebInspector.SidebarPane.call(this, WebInspector.UIString("Scope Variables"));
  30     this._sections = [];
  31     this._expandedSections = {};
  32     this._expandedProperties = [];
  33 }
  34
  35 WebInspector.ScopeChainSidebarPane.prototype = {
  36     update: function(callFrame)
  37     {
  38         this.bodyElement.removeChildren();
  39
  40         if (!callFrame) {
  41             var infoElement = document.createElement("div");
  42             infoElement.className = "info";
  43             infoElement.textContent = WebInspector.UIString("Not Paused");
  44             this.bodyElement.appendChild(infoElement);
  45             return;
  46         }
  47
  48         for (var i = 0; i < this._sections.length; ++i) {
  49             var section = this._sections[i];
  50             if (!section.title)
  51                 continue;
  52             if (section.expanded)
  53                 this._expandedSections[section.title] = true;
  54             else
  55                 delete this._expandedSections[section.title];
  56         }
  57
  58         this._sections = [];
  59
  60         var foundLocalScope = false;
  61         var scopeChain = callFrame.scopeChain;
  62         for (var i = 0; i < scopeChain.length; ++i) {
  63             var scope = scopeChain[i];
  64             var title = null;
  65             var subtitle = scope.object.description;
  66             var emptyPlaceholder = null;
  67             var extraProperties = null;
  68
  69             switch (scope.type) {
  70                 case "local":
  71                     foundLocalScope = true;
  72                     title = WebInspector.UIString("Local");
  73                     emptyPlaceholder = WebInspector.UIString("No Variables");
  74                     subtitle = null;
  75                     if (callFrame.this)
  76                         extraProperties = [ new WebInspector.RemoteObjectProperty("this", WebInspector.RemoteObject.fromPayload(callFrame.this)) ];
  77                     if (i == 0) {
  78                         var details = WebInspector.debuggerModel.debuggerPausedDetails;
  79                         var exception = details.reason === WebInspector.ScriptsPanel.BreakReason.Exception ? details.auxData : 0;
  80                         if (exception) {
  81                             extraProperties = extraProperties || [];
  82                             extraProperties.push(new WebInspector.RemoteObjectProperty("<exception>", WebInspector.RemoteObject.fromPayload(exception)));
  83                         }
  84                     }
  85                     break;
  86                 case "closure":
  87                     title = WebInspector.UIString("Closure");
  88                     emptyPlaceholder = WebInspector.UIString("No Variables");
  89                     subtitle = null;
  90                     break;
  91                 case "catch":
  92                     title = WebInspector.UIString("Catch");
  93                     break;
  94                 case "with":
  95                     title = WebInspector.UIString("With Block");
  96                     break;
  97                 case "global":
  98                     title = WebInspector.UIString("Global");
  99                     break;
 100             }
 101
 102             if (!title || title === subtitle)
 103                 subtitle = null;
 104
 105             var section = new WebInspector.ObjectPropertiesSection(WebInspector.RemoteObject.fromPayload(scope.object), title, subtitle, emptyPlaceholder, true, extraProperties, WebInspector.ScopeVariableTreeElement);
 106             section.editInSelectedCallFrameWhenPaused = true;
 107             section.pane = this;
 108
 109             if (!foundLocalScope || scope.type === "local" || title in this._expandedSections)
 110                 section.expanded = true;
 111
 112             this._sections.push(section);
 113             this.bodyElement.appendChild(section.element);
 114         }
 115     }
 116 }
 117
 118 WebInspector.ScopeChainSidebarPane.prototype.__proto__ = WebInspector.SidebarPane.prototype;
 119
 120 WebInspector.ScopeVariableTreeElement = function(property)
 121 {
 122     WebInspector.ObjectPropertyTreeElement.call(this, property);
 123 }
 124
 125 WebInspector.ScopeVariableTreeElement.prototype = {
 126     onattach: function()
 127     {
 128         WebInspector.ObjectPropertyTreeElement.prototype.onattach.call(this);
 129         if (this.hasChildren && this.propertyIdentifier in this.treeOutline.section.pane._expandedProperties)
 130             this.expand();
 131     },
 132
 133     onexpand: function()
 134     {
 135         this.treeOutline.section.pane._expandedProperties[this.propertyIdentifier] = true;
 136     },
 137
 138     oncollapse: function()
 139     {
 140         delete this.treeOutline.section.pane._expandedProperties[this.propertyIdentifier];
 141     },
 142
 143     get propertyIdentifier()
 144     {
 145         if ("_propertyIdentifier" in this)
 146             return this._propertyIdentifier;
 147         var section = this.treeOutline.section;
 148         this._propertyIdentifier = section.title + ":" + (section.subtitle ? section.subtitle + ":" : "") + this.propertyPath;
 149         return this._propertyIdentifier;
 150     },
 151
 152     get propertyPath()
 153     {
 154         if ("_propertyPath" in this)
 155             return this._propertyPath;
 156
 157         var current = this;
 158         var result;
 159
 160         do {
 161             if (result)
 162                 result = current.property.name + "." + result;
 163             else
 164                 result = current.property.name;
 165             current = current.parent;
 166         } while (current && !current.root);
 167
 168         this._propertyPath = result;
 169         return result;
 170     }
 171 }
 172
 173 WebInspector.ScopeVariableTreeElement.prototype.__proto__ = WebInspector.ObjectPropertyTreeElement.prototype;