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/**
32 * @constructor
33 */
34WebInspector.HeapSnapshotWorkerDispatcher = function(globalObject, postMessage)
35{
36    this._objects = [];
37    this._global = globalObject;
38    this._postMessage = postMessage;
39}
40
41WebInspector.HeapSnapshotWorkerDispatcher.prototype = {
42    _findFunction: function(name)
43    {
44        var path = name.split(".");
45        var result = this._global;
46        for (var i = 0; i < path.length; ++i)
47            result = result[path[i]];
48        return result;
49    },
50
51    /**
52     * @param {string} name
53     * @param {*} data
54     */
55    sendEvent: function(name, data)
56    {
57        this._postMessage({eventName: name, data: data});
58    },
59
60    dispatchMessage: function(event)
61    {
62        var data = event.data;
63        var response = {callId: data.callId};
64        try {
65            switch (data.disposition) {
66                case "create": {
67                    var constructorFunction = this._findFunction(data.methodName);
68                    this._objects[data.objectId] = new constructorFunction(this);
69                    break;
70                }
71                case "dispose": {
72                    delete this._objects[data.objectId];
73                    break;
74                }
75                case "getter": {
76                    var object = this._objects[data.objectId];
77                    var result = object[data.methodName];
78                    response.result = result;
79                    break;
80                }
81                case "factory": {
82                    var object = this._objects[data.objectId];
83                    var result = object[data.methodName].apply(object, data.methodArguments);
84                    if (result)
85                        this._objects[data.newObjectId] = result;
86                    response.result = !!result;
87                    break;
88                }
89                case "method": {
90                    var object = this._objects[data.objectId];
91                    response.result = object[data.methodName].apply(object, data.methodArguments);
92                    break;
93                }
94            }
95        } catch (e) {
96            response.error = e.toString();
97            response.errorCallStack = e.stack;
98            if (data.methodName)
99                response.errorMethodName = data.methodName;
100        }
101        this._postMessage(response);
102    }
103};
104