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JavaScript  |  2010-06-03  |  4.7 KB  |  104 lines
  1. /*
  2.  * Copyright (C) 2009 Google Inc. All rights reserved.
  3.  * Copyright (C) 2009 Joseph Pecoraro
  4.  *
  5.  * Redistribution and use in source and binary forms, with or without
  6.  * modification, are permitted provided that the following conditions are
  7.  * met:
  8.  *
  9.  *     * Redistributions of source code must retain the above copyright
  10.  * notice, this list of conditions and the following disclaimer.
  11.  *     * Redistributions in binary form must reproduce the above
  12.  * copyright notice, this list of conditions and the following disclaimer
  13.  * in the documentation and/or other materials provided with the
  14.  * distribution.
  15.  *     * Neither the name of Google Inc. nor the names of its
  16.  * contributors may be used to endorse or promote products derived from
  17.  * this software without specific prior written permission.
  18.  *
  19.  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  20.  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  21.  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  22.  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  23.  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  24.  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  25.  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  26.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  27.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  28.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  29.  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  30.  */
  31.  
  32. function InjectedScriptAccess(injectedScriptId) {
  33.     this._injectedScriptId = injectedScriptId;
  34. }
  35.  
  36. InjectedScriptAccess.get = function(injectedScriptId)
  37. {
  38.     return new InjectedScriptAccess(injectedScriptId);
  39. }
  40.  
  41. InjectedScriptAccess.getDefault = function()
  42. {
  43.     return InjectedScriptAccess.get(0);
  44. }
  45.  
  46. InjectedScriptAccess.prototype = {};
  47.  
  48. InjectedScriptAccess._installHandler = function(methodName, async)
  49. {
  50.     InjectedScriptAccess.prototype[methodName] = function()
  51.     {
  52.         var allArgs = Array.prototype.slice.call(arguments);
  53.         var callback = allArgs[allArgs.length - 1];
  54.         var argsString = JSON.stringify(Array.prototype.slice.call(allArgs, 0, allArgs.length - 1));
  55.         
  56.         function myCallback(result, isException)
  57.         {
  58.             if (!isException)
  59.                 callback(result);
  60.             else
  61.                 WebInspector.console.addMessage(new WebInspector.ConsoleTextMessage("Error dispatching: " + methodName));
  62.         }
  63.         var callId = WebInspector.Callback.wrap(myCallback);
  64.  
  65.         InspectorBackend.dispatchOnInjectedScript(callId, this._injectedScriptId, methodName, argsString, !!async);
  66.     };
  67. }
  68.  
  69. // InjectedScriptAccess message forwarding puts some constraints on the way methods are implemented and called:
  70. // - Make sure corresponding methods in InjectedScript return non-null and non-undefined values,
  71. // - Make sure last parameter of all the InjectedSriptAccess.* calls is a callback function.
  72. // We keep these sorted.
  73. InjectedScriptAccess._installHandler("addInspectedNode");
  74. InjectedScriptAccess._installHandler("addStyleSelector");
  75. InjectedScriptAccess._installHandler("applyStyleRuleText");
  76. InjectedScriptAccess._installHandler("applyStyleText");
  77. InjectedScriptAccess._installHandler("clearConsoleMessages");
  78. InjectedScriptAccess._installHandler("evaluate");
  79. InjectedScriptAccess._installHandler("evaluateInCallFrame");
  80. InjectedScriptAccess._installHandler("getCompletions");
  81. InjectedScriptAccess._installHandler("getComputedStyle");
  82. InjectedScriptAccess._installHandler("getInlineStyle");
  83. InjectedScriptAccess._installHandler("getNodePropertyValue");
  84. InjectedScriptAccess._installHandler("getProperties");
  85. InjectedScriptAccess._installHandler("getPrototypes");
  86. InjectedScriptAccess._installHandler("getStyles");
  87. InjectedScriptAccess._installHandler("openInInspectedWindow");
  88. InjectedScriptAccess._installHandler("performSearch");
  89. InjectedScriptAccess._installHandler("pushNodeToFrontend");
  90. InjectedScriptAccess._installHandler("nodeByPath");
  91. InjectedScriptAccess._installHandler("searchCanceled");
  92. InjectedScriptAccess._installHandler("setOuterHTML");
  93. InjectedScriptAccess._installHandler("setPropertyValue");
  94. InjectedScriptAccess._installHandler("setStyleProperty");
  95. InjectedScriptAccess._installHandler("setStyleText");
  96. InjectedScriptAccess._installHandler("toggleStyleEnabled");
  97. InjectedScriptAccess._installHandler("evaluateOnSelf");
  98.  
  99. // Some methods can't run synchronously even on the injected script side (such as DB transactions).
  100. // Mark them as asynchronous here.
  101. InjectedScriptAccess._installHandler("executeSql", true);
  102.  
  103. WebInspector.didDispatchOnInjectedScript = WebInspector.Callback.processCallback;
  104.