1/*
2 * Copyright (C) 1999-2001 Harri Porten (porten@kde.org)
3 * Copyright (C) 2001 Peter Kelly (pmk@post.com)
4 * Copyright (C) 2006-2018 Apple Inc. All rights reserved.
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21#pragma once
22
23#include "DOMWrapperWorld.h"
24#include <JavaScriptCore/Strong.h>
25#include <wtf/HashMap.h>
26#include <wtf/RefCounted.h>
27
28namespace JSC {
29class Debugger;
30}
31
32namespace WebCore {
33
34class AbstractDOMWindow;
35class AbstractFrame;
36class JSDOMGlobalObject;
37class JSWindowProxy;
38
39class WindowProxy : public RefCounted<WindowProxy> {
40 WTF_MAKE_FAST_ALLOCATED;
41public:
42 using ProxyMap = HashMap<RefPtr<DOMWrapperWorld>, JSC::Strong<JSWindowProxy>>;
43
44 static Ref<WindowProxy> create(AbstractFrame& frame)
45 {
46 return adoptRef(*new WindowProxy(frame));
47 }
48
49 WEBCORE_EXPORT ~WindowProxy();
50
51 AbstractFrame* frame() const { return m_frame; }
52 void detachFromFrame();
53
54 void destroyJSWindowProxy(DOMWrapperWorld&);
55
56 ProxyMap::ValuesConstIteratorRange jsWindowProxies() const { return m_jsWindowProxies.values(); }
57 Vector<JSC::Strong<JSWindowProxy>> jsWindowProxiesAsVector() const;
58
59 ProxyMap releaseJSWindowProxies() { return std::exchange(m_jsWindowProxies, ProxyMap()); }
60 void setJSWindowProxies(ProxyMap&& windowProxies) { m_jsWindowProxies = WTFMove(windowProxies); }
61
62 JSWindowProxy* jsWindowProxy(DOMWrapperWorld& world)
63 {
64 if (!m_frame)
65 return nullptr;
66
67 if (auto* existingProxy = existingJSWindowProxy(world))
68 return existingProxy;
69
70 return &createJSWindowProxyWithInitializedScript(world);
71 }
72
73 JSWindowProxy* existingJSWindowProxy(DOMWrapperWorld& world) const
74 {
75 auto it = m_jsWindowProxies.find(&world);
76 return (it != m_jsWindowProxies.end()) ? it->value.get() : nullptr;
77 }
78
79 WEBCORE_EXPORT JSDOMGlobalObject* globalObject(DOMWrapperWorld&);
80
81 void clearJSWindowProxiesNotMatchingDOMWindow(AbstractDOMWindow*, bool goingIntoPageCache);
82
83 WEBCORE_EXPORT void setDOMWindow(AbstractDOMWindow*);
84
85 // Debugger can be nullptr to detach any existing Debugger.
86 void attachDebugger(JSC::Debugger*); // Attaches/detaches in all worlds/window proxies.
87
88 WEBCORE_EXPORT AbstractDOMWindow* window() const;
89
90private:
91 explicit WindowProxy(AbstractFrame&);
92
93 JSWindowProxy& createJSWindowProxy(DOMWrapperWorld&);
94 WEBCORE_EXPORT JSWindowProxy& createJSWindowProxyWithInitializedScript(DOMWrapperWorld&);
95
96 AbstractFrame* m_frame;
97 ProxyMap m_jsWindowProxies;
98};
99
100} // namespace WebCore
101