WebCore/inspector/front-end/DebuggerModel.js

   1 /*
   2  * Copyright (C) 2010 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 WebInspector.DebuggerModel = function()
  32 {
  33     this._breakpoints = {};
  34 }
  35
  36 WebInspector.DebuggerModel.prototype = {
  37     setOneTimeBreakpoint: function(sourceID, line)
  38     {
  39         var breakpoint = new WebInspector.Breakpoint(this, sourceID, undefined, line, true, undefined);
  40         if (this._breakpoints[breakpoint.id])
  41             return;
  42         if (this._oneTimeBreakpoint)
  43             InspectorBackend.removeBreakpoint(this._oneTimeBreakpoint.sourceID, this._oneTimeBreakpoint.line);
  44         this._oneTimeBreakpoint = breakpoint;
  45         // FIXME(40669): one time breakpoint will be persisted in inspector settings if not hit.
  46         this._setBreakpointOnBackend(breakpoint, true);
  47     },
  48
  49     removeOneTimeBreakpoint: function()
  50     {
  51         if (this._oneTimeBreakpoint) {
  52             InspectorBackend.removeBreakpoint(this._oneTimeBreakpoint.sourceID, this._oneTimeBreakpoint.line);
  53             delete this._oneTimeBreakpoint;
  54         }
  55     },
  56
  57     setBreakpoint: function(sourceID, url, line, enabled, condition)
  58     {
  59         var breakpoint = this._setBreakpoint(sourceID, url, line, enabled, condition);
  60         if (breakpoint)
  61             this._setBreakpointOnBackend(breakpoint);
  62     },
  63
  64     breakpointRestored: function(sourceID, url, line, enabled, condition)
  65     {
  66         this._setBreakpoint(sourceID, url, line, enabled, condition);
  67     },
  68
  69     queryBreakpoints: function(filter)
  70     {
  71         var breakpoints = [];
  72         for (var id in this._breakpoints) {
  73            var breakpoint = this._breakpoints[id];
  74            if (filter(breakpoint))
  75                breakpoints.push(breakpoint);
  76         }
  77         return breakpoints;
  78     },
  79
  80     findBreakpoint: function(sourceID, lineNumber)
  81     {
  82         var breakpointId = WebInspector.Breakpoint.jsBreakpointId(sourceID, lineNumber);
  83         return this._breakpoints[breakpointId];
  84     },
  85
  86     reset: function()
  87     {
  88         this._breakpoints = {};
  89         delete this._oneTimeBreakpoint;
  90     },
  91
  92     _setBreakpoint: function(sourceID, url, line, enabled, condition)
  93     {
  94         var breakpoint = new WebInspector.Breakpoint(this, sourceID, url, line, enabled, condition);
  95         if (this._breakpoints[breakpoint.id])
  96             return;
  97         if (this._oneTimeBreakpoint && (this._oneTimeBreakpoint.id == breakpoint.id))
  98             delete this._oneTimeBreakpoint;
  99         this._breakpoints[breakpoint.id] = breakpoint;
 100         breakpoint.addEventListener("removed", this._breakpointRemoved, this);
 101         this.dispatchEventToListeners("breakpoint-added", breakpoint);
 102         return breakpoint;
 103     },
 104
 105     _breakpointRemoved: function(event)
 106     {
 107         delete this._breakpoints[event.target.id];
 108     },
 109
 110     _setBreakpointOnBackend: function(breakpoint, isOneTime)
 111     {
 112         function didSetBreakpoint(success, line)
 113         {
 114             if (success && line == breakpoint.line)
 115                 return;
 116             if (isOneTime) {
 117                 if (success)
 118                     this._oneTimeBreakpoint.line = line;
 119                 else
 120                     delete this._oneTimeBreakpoint;
 121             } else {
 122                 breakpoint.remove();
 123                 if (success)
 124                     this._setBreakpoint(breakpoint.sourceID, breakpoint.url, line, breakpoint.enabled, breakpoint.condition);
 125             }
 126         }
 127         InspectorBackend.setBreakpoint(breakpoint.sourceID, breakpoint.line, breakpoint.enabled, breakpoint.condition, didSetBreakpoint.bind(this));
 128     },
 129
 130     debuggerPaused: function(details)
 131     {
 132         this.dispatchEventToListeners("debugger-paused", details.callFrames);
 133
 134         if (details.eventType === WebInspector.DebuggerEventTypes.JavaScriptPause)
 135             return;
 136         if (details.eventType === WebInspector.DebuggerEventTypes.NativeBreakpoint) {
 137             this.dispatchEventToListeners("native-breakpoint-hit", details.eventData);
 138             return;
 139         }
 140
 141         var breakpointId = WebInspector.Breakpoint.jsBreakpointId(details.callFrames[0].sourceID, details.callFrames[0].line);
 142         var breakpoint = this._breakpoints[breakpointId];
 143         if (!breakpoint)
 144             return;
 145         breakpoint.hit = true;
 146         this._lastHitBreakpoint = breakpoint;
 147         this.dispatchEventToListeners("script-breakpoint-hit", breakpoint);
 148     },
 149
 150     debuggerResumed: function()
 151     {
 152         this.dispatchEventToListeners("debugger-resumed");
 153
 154         if (!this._lastHitBreakpoint)
 155             return;
 156         this._lastHitBreakpoint.hit = false;
 157         delete this._lastHitBreakpoint;
 158     }
 159 }
 160
 161 WebInspector.DebuggerModel.prototype.__proto__ = WebInspector.Object.prototype;
 162
 163 WebInspector.DebuggerEventTypes = {
 164     JavaScriptPause: 0,
 165     JavaScriptBreakpoint: 1,
 166     NativeBreakpoint: 2
 167 };