1 /*
2 * Copyright (c) 2008, Google Inc. All rights reserved.
3 * Copyright (C) 2008 Apple Inc. All Rights Reserved.
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 #include "config.h"
33 #include "ScriptCachedFrameData.h"
34
35 #include "Frame.h"
36 #include "GCController.h"
37 #include "Page.h"
38 #include "PageGroup.h"
39 #include <runtime/JSLock.h>
40 #include "ScriptController.h"
41
42 using namespace JSC;
43
44 namespace WebCore {
45
ScriptCachedFrameData(Frame * frame)46 ScriptCachedFrameData::ScriptCachedFrameData(Frame* frame)
47 {
48 JSLock lock(SilenceAssertionsOnly);
49
50 ScriptController* scriptController = frame->script();
51 if (scriptController->haveWindowShell()) {
52 m_window = scriptController->windowShell()->window();
53 scriptController->attachDebugger(0);
54 }
55 }
56
domWindow() const57 DOMWindow* ScriptCachedFrameData::domWindow() const {
58 return m_window ? m_window->impl() : 0;
59 }
60
~ScriptCachedFrameData()61 ScriptCachedFrameData::~ScriptCachedFrameData()
62 {
63 clear();
64 }
65
restore(Frame * frame)66 void ScriptCachedFrameData::restore(Frame* frame)
67 {
68 Page* page = frame->page();
69
70 JSLock lock(SilenceAssertionsOnly);
71
72 ScriptController* scriptController = frame->script();
73 if (scriptController->haveWindowShell()) {
74 JSDOMWindowShell* windowShell = scriptController->windowShell();
75 if (m_window) {
76 windowShell->setWindow(m_window.get());
77 } else {
78 windowShell->setWindow(frame->domWindow());
79 scriptController->attachDebugger(page->debugger());
80 windowShell->window()->setProfileGroup(page->group().identifier());
81 }
82 }
83 }
84
clear()85 void ScriptCachedFrameData::clear()
86 {
87 JSLock lock(SilenceAssertionsOnly);
88
89 if (!m_window) {
90 m_window = 0;
91 gcController().garbageCollectSoon();
92 }
93 }
94
95 } // namespace WebCore
96