src/third_party/WebKit/Source/devtools/front_end/sources/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 /**
  28  * @constructor
  29  * @extends {WebInspector.SidebarPane}
  30  */
  31 WebInspector.ScopeChainSidebarPane = function()
  32 {
  33     WebInspector.SidebarPane.call(this, WebInspector.UIString("Scope Variables"));
  34     this._sections = [];
  35     this._expandedSections = {};
  36     this._expandedProperties = [];
  37 }
  38
  39 WebInspector.ScopeChainSidebarPane.prototype = {
  40     /**
  41      * @param {?WebInspector.DebuggerModel.CallFrame} callFrame
  42      */
  43     update: function(callFrame)
  44     {
  45         this.bodyElement.removeChildren();
  46
  47         if (!callFrame) {
  48             var infoElement = createElement("div");
  49             infoElement.className = "info";
  50             infoElement.textContent = WebInspector.UIString("Not Paused");
  51             this.bodyElement.appendChild(infoElement);
  52             return;
  53         }
  54
  55         for (var i = 0; i < this._sections.length; ++i) {
  56             var section = this._sections[i];
  57             if (!section.title)
  58                 continue;
  59             if (section.expanded)
  60                 this._expandedSections[section.title] = true;
  61             else
  62                 delete this._expandedSections[section.title];
  63         }
  64
  65         this._sections = [];
  66
  67         var foundLocalScope = false;
  68         var scopeChain = callFrame.scopeChain;
  69         for (var i = 0; i < scopeChain.length; ++i) {
  70             var scope = scopeChain[i];
  71             var title = null;
  72             var subtitle = scope.object.description;
  73             var emptyPlaceholder = null;
  74             var extraProperties = [];
  75             var declarativeScope;
  76
  77             switch (scope.type) {
  78             case DebuggerAgent.ScopeType.Local:
  79                 foundLocalScope = true;
  80                 title = WebInspector.UIString("Local");
  81                 emptyPlaceholder = WebInspector.UIString("No Variables");
  82                 subtitle = undefined;
  83                 var thisObject = callFrame.thisObject();
  84                 if (thisObject)
  85                     extraProperties.push(new WebInspector.RemoteObjectProperty("this", thisObject));
  86                 if (i == 0) {
  87                     var details = callFrame.target().debuggerModel.debuggerPausedDetails();
  88                     if (!callFrame.isAsync()) {
  89                         var exception = details.exception();
  90                         if (exception)
  91                             extraProperties.push(new WebInspector.RemoteObjectProperty("<exception>", exception));
  92                     }
  93                     var returnValue = callFrame.returnValue();
  94                     if (returnValue)
  95                         extraProperties.push(new WebInspector.RemoteObjectProperty("<return>", returnValue));
  96                 }
  97                 declarativeScope = true;
  98                 break;
  99             case DebuggerAgent.ScopeType.Closure:
 100                 title = WebInspector.UIString("Closure");
 101                 emptyPlaceholder = WebInspector.UIString("No Variables");
 102                 subtitle = undefined;
 103                 declarativeScope = true;
 104                 break;
 105             case DebuggerAgent.ScopeType.Catch:
 106                 title = WebInspector.UIString("Catch");
 107                 subtitle = undefined;
 108                 declarativeScope = true;
 109                 break;
 110             case DebuggerAgent.ScopeType.With:
 111                 title = WebInspector.UIString("With Block");
 112                 declarativeScope = false;
 113                 break;
 114             case DebuggerAgent.ScopeType.Global:
 115                 title = WebInspector.UIString("Global");
 116                 declarativeScope = false;
 117                 break;
 118             }
 119
 120             if (!title || title === subtitle)
 121                 subtitle = undefined;
 122
 123             var runtimeModel = callFrame.target().runtimeModel;
 124             if (declarativeScope)
 125                 var scopeObject = runtimeModel.createScopeRemoteObject(scope.object, new WebInspector.ScopeRef(i, callFrame.id, undefined));
 126             else
 127                 var scopeObject = runtimeModel.createRemoteObject(scope.object);
 128
 129             var section = new WebInspector.ObjectPropertiesSection(scopeObject, title, subtitle, emptyPlaceholder, true, extraProperties, WebInspector.ScopeVariableTreeElement);
 130             section.editInSelectedCallFrameWhenPaused = true;
 131             section.pane = this;
 132
 133             if (scope.type === DebuggerAgent.ScopeType.Global)
 134                 section.expanded = false;
 135             else if (!foundLocalScope || scope.type === DebuggerAgent.ScopeType.Local || title in this._expandedSections)
 136                 section.expanded = true;
 137
 138             this._sections.push(section);
 139             this.bodyElement.appendChild(section.element);
 140         }
 141     },
 142
 143     __proto__: WebInspector.SidebarPane.prototype
 144 }
 145
 146 /**
 147  * @constructor
 148  * @extends {WebInspector.ObjectPropertyTreeElement}
 149  * @param {!WebInspector.RemoteObjectProperty} property
 150  */
 151 WebInspector.ScopeVariableTreeElement = function(property)
 152 {
 153     WebInspector.ObjectPropertyTreeElement.call(this, property);
 154 }
 155
 156 WebInspector.ScopeVariableTreeElement.prototype = {
 157     onattach: function()
 158     {
 159         WebInspector.ObjectPropertyTreeElement.prototype.onattach.call(this);
 160         if (this.hasChildren && this.propertyIdentifier in this.treeOutline.section.pane._expandedProperties)
 161             this.expand();
 162     },
 163
 164     onexpand: function()
 165     {
 166         this.treeOutline.section.pane._expandedProperties[this.propertyIdentifier] = true;
 167     },
 168
 169     oncollapse: function()
 170     {
 171         delete this.treeOutline.section.pane._expandedProperties[this.propertyIdentifier];
 172     },
 173
 174     get propertyIdentifier()
 175     {
 176         if ("_propertyIdentifier" in this)
 177             return this._propertyIdentifier;
 178         var section = this.treeOutline.section;
 179         this._propertyIdentifier = section.title + ":" + (section.subtitle ? section.subtitle + ":" : "") + this.propertyPath();
 180         return this._propertyIdentifier;
 181     },
 182
 183     __proto__: WebInspector.ObjectPropertyTreeElement.prototype
 184 }