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      1 /*
      2  * Copyright (C) 2012 Google 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 are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 /**
     32  * @constructor
     33  * @param {WebInspector.Workspace} workspace
     34  */
     35 WebInspector.LiveEditSupport = function(workspace)
     36 {
     37     this._workspaceProvider = new WebInspector.SimpleWorkspaceProvider(workspace, WebInspector.projectTypes.LiveEdit);
     38     WebInspector.debuggerModel.addEventListener(WebInspector.DebuggerModel.Events.GlobalObjectCleared, this._debuggerReset, this);
     39     this._debuggerReset();
     40 }
     41 
     42 WebInspector.LiveEditSupport.prototype = {
     43     /**
     44      * @param {WebInspector.UISourceCode} uiSourceCode
     45      * @return {WebInspector.UISourceCode}
     46      */
     47     uiSourceCodeForLiveEdit: function(uiSourceCode)
     48     {
     49         var rawLocation = uiSourceCode.uiLocationToRawLocation(0, 0);
     50         var debuggerModelLocation = /** @type {WebInspector.DebuggerModel.Location} */ (rawLocation);
     51         var script = WebInspector.debuggerModel.scriptForId(debuggerModelLocation.scriptId);
     52         var uiLocation = script.rawLocationToUILocation(0, 0);
     53 
     54         // FIXME: Support live editing of scripts mapped to some file.
     55         if (uiLocation.uiSourceCode !== uiSourceCode)
     56             return uiLocation.uiSourceCode;
     57         if (this._uiSourceCodeForScriptId[script.scriptId])
     58             return this._uiSourceCodeForScriptId[script.scriptId];
     59 
     60         console.assert(!script.isInlineScript());
     61         var liveEditUISourceCode = this._workspaceProvider.addUniqueFileForURL(script.sourceURL, script, true, script.isContentScript);
     62 
     63         liveEditUISourceCode.setScriptFile(new WebInspector.LiveEditScriptFile(uiSourceCode, liveEditUISourceCode, script.scriptId));
     64         this._uiSourceCodeForScriptId[script.scriptId] = liveEditUISourceCode;
     65         this._scriptIdForUISourceCode.put(liveEditUISourceCode, script.scriptId);
     66         return liveEditUISourceCode;
     67     },
     68 
     69     _debuggerReset: function()
     70     {
     71         /** @type {!Object.<string, WebInspector.UISourceCode>} */
     72         this._uiSourceCodeForScriptId = {};
     73         /** @type {!Map.<WebInspector.UISourceCode, string>} */
     74         this._scriptIdForUISourceCode = new Map();
     75         this._workspaceProvider.reset();
     76     },
     77 }
     78 
     79 /**
     80  * @param {?string} error
     81  * @param {DebuggerAgent.SetScriptSourceError=} errorData
     82  * @param {WebInspector.Script=} contextScript
     83  */
     84 WebInspector.LiveEditSupport.logDetailedError = function(error, errorData, contextScript)
     85 {
     86     if (!errorData) {
     87         WebInspector.showErrorMessage(error);
     88         return;
     89     }
     90     var compileError = errorData.compileError;
     91     if (compileError) {
     92         var message = compileError.message;
     93         if (contextScript)
     94             message += " at " + contextScript.sourceURL + ":" + compileError.lineNumber + ":" + compileError.columnNumber;
     95         WebInspector.showErrorMessage(message);
     96     } else {
     97         WebInspector.showErrorMessage("Unknown LiveEdit error: " + JSON.stringify(errorData) + "; " + error);
     98     }
     99 }
    100 
    101 /**
    102  * @constructor
    103  * @implements {WebInspector.ScriptFile}
    104  * @extends {WebInspector.Object}
    105  * @param {WebInspector.UISourceCode} uiSourceCode
    106  * @param {WebInspector.UISourceCode} liveEditUISourceCode
    107  * @param {string} scriptId
    108  */
    109 WebInspector.LiveEditScriptFile = function(uiSourceCode, liveEditUISourceCode, scriptId)
    110 {
    111     WebInspector.ScriptFile.call(this);
    112     this._uiSourceCode = uiSourceCode;
    113     this._liveEditUISourceCode = liveEditUISourceCode;
    114     this._scriptId = scriptId;
    115     this._liveEditUISourceCode.addEventListener(WebInspector.UISourceCode.Events.WorkingCopyCommitted, this._workingCopyCommitted, this);
    116 }
    117 
    118 WebInspector.LiveEditScriptFile.prototype = {
    119     _workingCopyCommitted: function(event)
    120     {
    121         /**
    122          * @param {?string} error
    123          * @param {DebuggerAgent.SetScriptSourceError=} errorData
    124          */
    125         function innerCallback(error, errorData)
    126         {
    127             if (error) {
    128                 var script = WebInspector.debuggerModel.scriptForId(this._scriptId);
    129                 WebInspector.LiveEditSupport.logDetailedError(error, errorData, script);
    130                 return;
    131             }
    132         }
    133 
    134         var script = WebInspector.debuggerModel.scriptForId(this._scriptId);
    135         WebInspector.debuggerModel.setScriptSource(script.scriptId, this._liveEditUISourceCode.workingCopy(), innerCallback.bind(this));
    136     },
    137 
    138     /**
    139      * @return {boolean}
    140      */
    141     hasDivergedFromVM: function()
    142     {
    143         return true;
    144     },
    145 
    146     /**
    147      * @return {boolean}
    148      */
    149     isDivergingFromVM: function()
    150     {
    151         return false;
    152     },
    153 
    154     /**
    155      * @return {boolean}
    156      */
    157     isMergingToVM: function()
    158     {
    159         return false;
    160     },
    161 
    162     checkMapping: function()
    163     {
    164     },
    165 
    166     __proto__: WebInspector.Object.prototype
    167 }
    168 
    169 /** @type {WebInspector.LiveEditSupport} */
    170 WebInspector.liveEditSupport = null;
    171