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 "CommonVM.h"
36#include "Document.h"
37#include "Frame.h"
38#include "GCController.h"
39#include "Page.h"
40#include "PageConsoleClient.h"
41#include "PageGroup.h"
42#include "ScriptController.h"
43#include <JavaScriptCore/JSLock.h>
44#include <JavaScriptCore/StrongInlines.h>
45#include <JavaScriptCore/WeakGCMapInlines.h>
46
47namespace WebCore {
48using namespace JSC;
49
50ScriptCachedFrameData::ScriptCachedFrameData(Frame& frame)
51{
52 JSLockHolder lock(commonVM());
53
54 for (auto windowProxy : frame.windowProxy().jsWindowProxiesAsVector()) {
55 auto* window = jsCast<JSDOMWindow*>(windowProxy->window());
56 m_windows.add(&windowProxy->world(), Strong<JSDOMWindow>(window->vm(), window));
57 window->setConsoleClient(nullptr);
58 }
59
60 frame.windowProxy().attachDebugger(nullptr);
61}
62
63ScriptCachedFrameData::~ScriptCachedFrameData()
64{
65 clear();
66}
67
68void ScriptCachedFrameData::restore(Frame& frame)
69{
70 JSLockHolder lock(commonVM());
71
72 Page* page = frame.page();
73
74 for (auto windowProxy : frame.windowProxy().jsWindowProxiesAsVector()) {
75 auto* world = &windowProxy->world();
76
77 if (auto* window = m_windows.get(world).get())
78 windowProxy->setWindow(window->vm(), *window);
79 else {
80 ASSERT(frame.document()->domWindow());
81 auto& domWindow = *frame.document()->domWindow();
82 if (&windowProxy->wrapped() == &domWindow)
83 continue;
84
85 windowProxy->setWindow(domWindow);
86
87 if (page) {
88 windowProxy->attachDebugger(page->debugger());
89 windowProxy->window()->setProfileGroup(page->group().identifier());
90 }
91 }
92
93 if (page)
94 windowProxy->window()->setConsoleClient(&page->console());
95 }
96}
97
98void ScriptCachedFrameData::clear()
99{
100 if (m_windows.isEmpty())
101 return;
102
103 JSLockHolder lock(commonVM());
104 m_windows.clear();
105 GCController::singleton().garbageCollectSoon();
106}
107
108} // namespace WebCore
109