1 : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 : /* ***** BEGIN LICENSE BLOCK *****
3 : * Version: MPL 1.1/GPL 2.0/LGPL 2.1
4 : *
5 : * The contents of this file are subject to the Mozilla Public License Version
6 : * 1.1 (the "License"); you may not use this file except in compliance with
7 : * the License. You may obtain a copy of the License at
8 : * http://www.mozilla.org/MPL/
9 : *
10 : * Software distributed under the License is distributed on an "AS IS" basis,
11 : * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
12 : * for the specific language governing rights and limitations under the
13 : * License.
14 : *
15 : * The Original Code is mozilla.org code.
16 : *
17 : * The Initial Developer of the Original Code is
18 : * Mozilla Foundation.
19 : * Portions created by the Initial Developer are Copyright (C) 2007
20 : * the Initial Developer. All Rights Reserved.
21 : *
22 : * Contributor(s):
23 : * Jeff Walden <jwalden+code@mit.edu> (original author)
24 : *
25 : * Alternatively, the contents of this file may be used under the terms of
26 : * either of the GNU General Public License Version 2 or later (the "GPL"),
27 : * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
28 : * in which case the provisions of the GPL or the LGPL are applicable instead
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32 : * decision by deleting the provisions above and replace them with the notice
33 : * and other provisions required by the GPL or the LGPL. If you do not delete
34 : * the provisions above, a recipient may use your version of this file under
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36 : *
37 : * ***** END LICENSE BLOCK ***** */
38 :
39 : #include "nsDOMMessageEvent.h"
40 : #include "nsContentUtils.h"
41 : #include "jsapi.h"
42 :
43 1464 : NS_IMPL_CYCLE_COLLECTION_CLASS(nsDOMMessageEvent)
44 :
45 0 : NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(nsDOMMessageEvent, nsDOMEvent)
46 0 : if (tmp->mDataRooted) {
47 0 : tmp->UnrootData();
48 : }
49 0 : NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(mSource)
50 0 : NS_IMPL_CYCLE_COLLECTION_UNLINK_END
51 :
52 0 : NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(nsDOMMessageEvent, nsDOMEvent)
53 0 : NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS
54 0 : NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mSource)
55 0 : NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
56 :
57 0 : NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN(nsDOMMessageEvent)
58 0 : if (JSVAL_IS_GCTHING(tmp->mData)) {
59 0 : void *gcThing = JSVAL_TO_GCTHING(tmp->mData);
60 0 : NS_IMPL_CYCLE_COLLECTION_TRACE_JS_CALLBACK(gcThing, "mData")
61 : }
62 0 : NS_IMPL_CYCLE_COLLECTION_TRACE_END
63 :
64 : DOMCI_DATA(MessageEvent, nsDOMMessageEvent)
65 :
66 0 : NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(nsDOMMessageEvent)
67 0 : NS_INTERFACE_MAP_ENTRY(nsIDOMMessageEvent)
68 0 : NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(MessageEvent)
69 0 : NS_INTERFACE_MAP_END_INHERITING(nsDOMEvent)
70 :
71 0 : NS_IMPL_ADDREF_INHERITED(nsDOMMessageEvent, nsDOMEvent)
72 0 : NS_IMPL_RELEASE_INHERITED(nsDOMMessageEvent, nsDOMEvent)
73 :
74 0 : nsDOMMessageEvent::nsDOMMessageEvent(nsPresContext* aPresContext,
75 : nsEvent* aEvent)
76 : : nsDOMEvent(aPresContext, aEvent),
77 : mData(JSVAL_VOID),
78 0 : mDataRooted(false)
79 : {
80 0 : }
81 :
82 0 : nsDOMMessageEvent::~nsDOMMessageEvent()
83 : {
84 0 : if (mDataRooted)
85 0 : UnrootData();
86 0 : }
87 :
88 : void
89 0 : nsDOMMessageEvent::RootData()
90 : {
91 0 : NS_ASSERTION(!mDataRooted, "...");
92 0 : NS_HOLD_JS_OBJECTS(this, nsDOMMessageEvent);
93 0 : mDataRooted = true;
94 0 : }
95 :
96 : void
97 0 : nsDOMMessageEvent::UnrootData()
98 : {
99 0 : NS_ASSERTION(mDataRooted, "...");
100 0 : NS_DROP_JS_OBJECTS(this, nsDOMMessageEvent);
101 0 : mDataRooted = false;
102 0 : mData = JSVAL_VOID;
103 0 : }
104 :
105 : NS_IMETHODIMP
106 0 : nsDOMMessageEvent::GetData(JSContext* aCx, jsval* aData)
107 : {
108 0 : *aData = mData;
109 0 : if (!JS_WrapValue(aCx, aData))
110 0 : return NS_ERROR_FAILURE;
111 0 : return NS_OK;
112 : }
113 :
114 : NS_IMETHODIMP
115 0 : nsDOMMessageEvent::GetOrigin(nsAString& aOrigin)
116 : {
117 0 : aOrigin = mOrigin;
118 0 : return NS_OK;
119 : }
120 :
121 : NS_IMETHODIMP
122 0 : nsDOMMessageEvent::GetLastEventId(nsAString& aLastEventId)
123 : {
124 0 : aLastEventId = mLastEventId;
125 0 : return NS_OK;
126 : }
127 :
128 : NS_IMETHODIMP
129 0 : nsDOMMessageEvent::GetSource(nsIDOMWindow** aSource)
130 : {
131 0 : NS_IF_ADDREF(*aSource = mSource);
132 0 : return NS_OK;
133 : }
134 :
135 : NS_IMETHODIMP
136 0 : nsDOMMessageEvent::InitMessageEvent(const nsAString& aType,
137 : bool aCanBubble,
138 : bool aCancelable,
139 : const jsval& aData,
140 : const nsAString& aOrigin,
141 : const nsAString& aLastEventId,
142 : nsIDOMWindow* aSource)
143 : {
144 0 : nsresult rv = nsDOMEvent::InitEvent(aType, aCanBubble, aCancelable);
145 0 : NS_ENSURE_SUCCESS(rv, rv);
146 :
147 : // Allowing double-initialization seems a little silly, but we have a test
148 : // for it so it might be important ...
149 0 : if (mDataRooted)
150 0 : UnrootData();
151 0 : mData = aData;
152 0 : RootData();
153 0 : mOrigin = aOrigin;
154 0 : mLastEventId = aLastEventId;
155 0 : mSource = aSource;
156 :
157 0 : return NS_OK;
158 : }
159 :
160 : nsresult
161 0 : NS_NewDOMMessageEvent(nsIDOMEvent** aInstancePtrResult,
162 : nsPresContext* aPresContext,
163 : nsEvent* aEvent)
164 : {
165 0 : nsDOMMessageEvent* it = new nsDOMMessageEvent(aPresContext, aEvent);
166 :
167 0 : return CallQueryInterface(it, aInstancePtrResult);
168 4392 : }
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