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      1 /*
      2  * Copyright (C) 2011 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 function platformExtensionAPI(coreAPI)
     32 {
     33     function getTabId()
     34     {
     35         return tabId;
     36     }
     37     chrome = window.chrome || {};
     38     // Override chrome.devtools as a workaround for a error-throwing getter being exposed
     39     // in extension pages loaded into a non-extension process (only happens for remote client
     40     // extensions)
     41     var devtools_descriptor = Object.getOwnPropertyDescriptor(chrome, "devtools");
     42     if (!devtools_descriptor || devtools_descriptor.get)
     43         Object.defineProperty(chrome, "devtools", { value: {}, enumerable: true });
     44     // Only expose tabId on chrome.devtools.inspectedWindow, not webInspector.inspectedWindow.
     45     chrome.devtools.inspectedWindow = {};
     46     chrome.devtools.inspectedWindow.__defineGetter__("tabId", getTabId);
     47     chrome.devtools.inspectedWindow.__proto__ = coreAPI.inspectedWindow;
     48     chrome.devtools.network = coreAPI.network;
     49     chrome.devtools.panels = coreAPI.panels;
     50 
     51     // default to expose experimental APIs for now.
     52     if (extensionInfo.exposeExperimentalAPIs !== false) {
     53         chrome.experimental = chrome.experimental || {};
     54         chrome.experimental.devtools = chrome.experimental.devtools || {};
     55 
     56         var properties = Object.getOwnPropertyNames(coreAPI);
     57         for (var i = 0; i < properties.length; ++i) {
     58             var descriptor = Object.getOwnPropertyDescriptor(coreAPI, properties[i]);
     59             Object.defineProperty(chrome.experimental.devtools, properties[i], descriptor);
     60         }
     61         chrome.experimental.devtools.inspectedWindow = chrome.devtools.inspectedWindow;
     62     }
     63     if (extensionInfo.exposeWebInspectorNamespace)
     64         window.webInspector = coreAPI;
     65 }
     66