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 : m_domWindow(0)
48 {
49 JSLock lock(SilenceAssertionsOnly);
50
51 ScriptController* scriptController = frame->script();
52 ScriptController::ShellMap& windowShells = scriptController->m_windowShells;
53
54 ScriptController::ShellMap::iterator windowShellsEnd = windowShells.end();
55 for (ScriptController::ShellMap::iterator iter = windowShells.begin(); iter != windowShellsEnd; ++iter) {
56 JSDOMWindow* window = iter->second->window();
57 m_windows.add(iter->first.get(), Strong<JSDOMWindow>(window->globalData(), window));
58 m_domWindow = window->impl();
59 }
60
61 scriptController->attachDebugger(0);
62 }
63
domWindow() const64 DOMWindow* ScriptCachedFrameData::domWindow() const
65 {
66 return m_domWindow;
67 }
68
~ScriptCachedFrameData()69 ScriptCachedFrameData::~ScriptCachedFrameData()
70 {
71 clear();
72 }
73
restore(Frame * frame)74 void ScriptCachedFrameData::restore(Frame* frame)
75 {
76 JSLock lock(SilenceAssertionsOnly);
77
78 ScriptController* scriptController = frame->script();
79 ScriptController::ShellMap& windowShells = scriptController->m_windowShells;
80
81 ScriptController::ShellMap::iterator windowShellsEnd = windowShells.end();
82 for (ScriptController::ShellMap::iterator iter = windowShells.begin(); iter != windowShellsEnd; ++iter) {
83 DOMWrapperWorld* world = iter->first.get();
84 JSDOMWindowShell* windowShell = iter->second.get();
85
86 if (JSDOMWindow* window = m_windows.get(world).get())
87 windowShell->setWindow(window->globalData(), window);
88 else {
89 windowShell->setWindow(frame->domWindow());
90
91 if (Page* page = frame->page()) {
92 scriptController->attachDebugger(windowShell, page->debugger());
93 windowShell->window()->setProfileGroup(page->group().identifier());
94 }
95 }
96 }
97 }
98
clear()99 void ScriptCachedFrameData::clear()
100 {
101 if (m_windows.isEmpty())
102 return;
103
104 JSLock lock(SilenceAssertionsOnly);
105 m_windows.clear();
106 gcController().garbageCollectSoon();
107 }
108
109 } // namespace WebCore
110