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      1 /*
      2  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
     17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 /**
     27  * @constructor
     28  * @extends {WebInspector.SidebarPane}
     29  */
     30 WebInspector.CallStackSidebarPane = function()
     31 {
     32     WebInspector.SidebarPane.call(this, WebInspector.UIString("Call Stack"));
     33     this._model = WebInspector.debuggerModel;
     34 
     35     this.bodyElement.addEventListener("keydown", this._keyDown.bind(this), true);
     36     this.bodyElement.tabIndex = 0;
     37 }
     38 
     39 WebInspector.CallStackSidebarPane.prototype = {
     40     update: function(callFrames)
     41     {
     42         this.bodyElement.removeChildren();
     43         delete this._statusMessageElement;
     44         this.placards = [];
     45 
     46         if (!callFrames) {
     47             var infoElement = document.createElement("div");
     48             infoElement.className = "info";
     49             infoElement.textContent = WebInspector.UIString("Not Paused");
     50             this.bodyElement.appendChild(infoElement);
     51             return;
     52         }
     53 
     54         for (var i = 0; i < callFrames.length; ++i) {
     55             var callFrame = callFrames[i];
     56             var placard = new WebInspector.CallStackSidebarPane.Placard(callFrame, this);
     57             placard.element.addEventListener("click", this._placardSelected.bind(this, placard), false);
     58             this.placards.push(placard);
     59             this.bodyElement.appendChild(placard.element);
     60         }
     61     },
     62 
     63     setSelectedCallFrame: function(x)
     64     {
     65         for (var i = 0; i < this.placards.length; ++i) {
     66             var placard = this.placards[i];
     67             placard.selected = (placard._callFrame === x);
     68         }
     69     },
     70 
     71     /**
     72      * @param {Event=} event
     73      * @return {boolean}
     74      */
     75     _selectNextCallFrameOnStack: function(event)
     76     {
     77         var index = this._selectedCallFrameIndex();
     78         if (index == -1)
     79             return true;
     80         this._selectedPlacardByIndex(index + 1);
     81         return true;
     82     },
     83 
     84     /**
     85      * @param {Event=} event
     86      * @return {boolean}
     87      */
     88     _selectPreviousCallFrameOnStack: function(event)
     89     {
     90         var index = this._selectedCallFrameIndex();
     91         if (index == -1)
     92             return true;
     93         this._selectedPlacardByIndex(index - 1);
     94         return true;
     95     },
     96 
     97     /**
     98      * @param {number} index
     99      */
    100     _selectedPlacardByIndex: function(index)
    101     {
    102         if (index < 0 || index >= this.placards.length)
    103             return;
    104         this._placardSelected(this.placards[index])
    105     },
    106 
    107     /**
    108      * @return {number}
    109      */
    110     _selectedCallFrameIndex: function()
    111     {
    112         if (!this._model.selectedCallFrame())
    113             return -1;
    114         for (var i = 0; i < this.placards.length; ++i) {
    115             var placard = this.placards[i];
    116             if (placard._callFrame === this._model.selectedCallFrame())
    117                 return i;
    118         }
    119         return -1;
    120     },
    121 
    122     _placardSelected: function(placard)
    123     {
    124         this._model.setSelectedCallFrame(placard._callFrame);
    125     },
    126 
    127     _copyStackTrace: function()
    128     {
    129         var text = "";
    130         for (var i = 0; i < this.placards.length; ++i)
    131             text += this.placards[i].title + " (" + this.placards[i].subtitle + ")\n";
    132         InspectorFrontendHost.copyText(text);
    133     },
    134 
    135     /**
    136      * @param {function(!Array.<!WebInspector.KeyboardShortcut.Descriptor>, function(Event=):boolean)} registerShortcutDelegate
    137      */
    138     registerShortcuts: function(registerShortcutDelegate)
    139     {
    140         registerShortcutDelegate(WebInspector.ScriptsPanelDescriptor.ShortcutKeys.NextCallFrame, this._selectNextCallFrameOnStack.bind(this));
    141         registerShortcutDelegate(WebInspector.ScriptsPanelDescriptor.ShortcutKeys.PrevCallFrame, this._selectPreviousCallFrameOnStack.bind(this));
    142     },
    143 
    144     setStatus: function(status)
    145     {
    146         if (!this._statusMessageElement) {
    147             this._statusMessageElement = document.createElement("div");
    148             this._statusMessageElement.className = "info";
    149             this.bodyElement.appendChild(this._statusMessageElement);
    150         }
    151         if (typeof status === "string")
    152             this._statusMessageElement.textContent = status;
    153         else {
    154             this._statusMessageElement.removeChildren();
    155             this._statusMessageElement.appendChild(status);
    156         }
    157     },
    158 
    159     _keyDown: function(event)
    160     {
    161         if (event.altKey || event.shiftKey || event.metaKey || event.ctrlKey)
    162             return;
    163 
    164         if (event.keyIdentifier === "Up") {
    165             this._selectPreviousCallFrameOnStack();
    166             event.consume();
    167         } else if (event.keyIdentifier === "Down") {
    168             this._selectNextCallFrameOnStack();
    169             event.consume();
    170         }
    171     },
    172 
    173     __proto__: WebInspector.SidebarPane.prototype
    174 }
    175 
    176 /**
    177  * @constructor
    178  * @extends {WebInspector.Placard}
    179  * @param {WebInspector.DebuggerModel.CallFrame} callFrame
    180  * @param {WebInspector.CallStackSidebarPane} pane
    181  */
    182 WebInspector.CallStackSidebarPane.Placard = function(callFrame, pane)
    183 {
    184     WebInspector.Placard.call(this, callFrame.functionName || WebInspector.UIString("(anonymous function)"), "");
    185     callFrame.createLiveLocation(this._update.bind(this));
    186     this.element.addEventListener("contextmenu", this._placardContextMenu.bind(this), true);
    187     this._callFrame = callFrame;
    188     this._pane = pane;
    189 }
    190 
    191 WebInspector.CallStackSidebarPane.Placard.prototype = {
    192     _update: function(uiLocation)
    193     {
    194         this.subtitle = uiLocation.linkText().trimMiddle(100);
    195     },
    196 
    197     _placardContextMenu: function(event)
    198     {
    199         var contextMenu = new WebInspector.ContextMenu(event);
    200 
    201         if (WebInspector.debuggerModel.canSetScriptSource()) {
    202             contextMenu.appendItem(WebInspector.UIString(WebInspector.useLowerCaseMenuTitles() ? "Restart frame" : "Restart Frame"), this._restartFrame.bind(this));
    203             contextMenu.appendSeparator();
    204         }
    205         contextMenu.appendItem(WebInspector.UIString(WebInspector.useLowerCaseMenuTitles() ? "Copy stack trace" : "Copy Stack Trace"), this._pane._copyStackTrace.bind(this._pane));
    206 
    207         contextMenu.show();
    208     },
    209 
    210     _restartFrame: function()
    211     {
    212         this._callFrame.restart(undefined);
    213     },
    214 
    215     __proto__: WebInspector.Placard.prototype
    216 }
    217