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1/*
2 * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
3 * Copyright (C) 2006 Alexey Proskuryakov (ap@nypop.com)
4 * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
5 * Copyright (C) 2008 Eric Seidel <eric@webkit.org>
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
20 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
21 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
22 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
23 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
24 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#import "config.h"
30#import "ScriptController.h"
31
32#import "DOMAbstractViewFrame.h"
33#import "DOMWindow.h"
34#import "Frame.h"
35#import "FrameLoader.h"
36#import "FrameLoaderClient.h"
37#import "JSDOMWindow.h"
38#import "WebScriptObjectPrivate.h"
39#import "Widget.h"
40#import <JavaScriptCore/APICast.h>
41#import <runtime/JSLock.h>
42
43#if ENABLE(NETSCAPE_PLUGIN_API)
44#import "c_instance.h"
45#import "NP_jsobject.h"
46#import "npruntime_impl.h"
47#endif
48
49#import "objc_instance.h"
50#import "runtime_root.h"
51#import "runtime.h"
52
53#if ENABLE(MAC_JAVA_BRIDGE)
54#import "jni_instance.h"
55#endif
56
57@interface NSObject (WebPlugin)
58- (id)objectForWebScript;
59- (NPObject *)createPluginScriptableObject;
60- (PassRefPtr<JSC::Bindings::Instance>)createPluginBindingsInstance:(PassRefPtr<JSC::Bindings::RootObject>)rootObject;
61@end
62
63using namespace JSC::Bindings;
64
65namespace WebCore {
66
67PassScriptInstance ScriptController::createScriptInstanceForWidget(Widget* widget)
68{
69    NSView* widgetView = widget->platformWidget();
70    if (!widgetView)
71        return 0;
72
73    RefPtr<RootObject> rootObject = createRootObject(widgetView);
74
75    if ([widgetView respondsToSelector:@selector(createPluginBindingsInstance:)])
76        return [widgetView createPluginBindingsInstance:rootObject.release()];
77
78    if ([widgetView respondsToSelector:@selector(objectForWebScript)]) {
79        id objectForWebScript = [widgetView objectForWebScript];
80        if (!objectForWebScript)
81            return 0;
82        return JSC::Bindings::ObjcInstance::create(objectForWebScript, rootObject.release());
83    }
84
85    if ([widgetView respondsToSelector:@selector(createPluginScriptableObject)]) {
86#if !ENABLE(NETSCAPE_PLUGIN_API)
87        return 0;
88#else
89        NPObject* npObject = [widgetView createPluginScriptableObject];
90        if (!npObject)
91            return 0;
92        RefPtr<Instance> instance = JSC::Bindings::CInstance::create(npObject, rootObject.release());
93        // -createPluginScriptableObject returns a retained NPObject.  The caller is expected to release it.
94        _NPN_ReleaseObject(npObject);
95        return instance.release();
96#endif
97    }
98
99#if ENABLE(MAC_JAVA_BRIDGE)
100    jobject applet = m_frame->loader()->client()->javaApplet(widgetView);
101    if (!applet)
102        return 0;
103    return JSC::Bindings::JavaInstance::create(applet, rootObject.release());
104#else
105    return 0;
106#endif
107}
108
109WebScriptObject* ScriptController::windowScriptObject()
110{
111    if (!isEnabled())
112        return 0;
113
114    if (!m_windowScriptObject) {
115        JSC::JSLock lock(JSC::SilenceAssertionsOnly);
116        JSC::Bindings::RootObject* root = bindingRootObject();
117        m_windowScriptObject = [WebScriptObject scriptObjectForJSObject:toRef(windowShell()) originRootObject:root rootObject:root];
118    }
119
120    ASSERT([m_windowScriptObject.get() isKindOfClass:[DOMAbstractView class]]);
121    return m_windowScriptObject.get();
122}
123
124void ScriptController::updatePlatformScriptObjects()
125{
126    if (m_windowScriptObject) {
127        JSC::Bindings::RootObject* root = bindingRootObject();
128        [m_windowScriptObject.get() _setOriginRootObject:root andRootObject:root];
129    }
130}
131
132void ScriptController::disconnectPlatformScriptObjects()
133{
134    if (m_windowScriptObject) {
135        ASSERT([m_windowScriptObject.get() isKindOfClass:[DOMAbstractView class]]);
136        [(DOMAbstractView *)m_windowScriptObject.get() _disconnectFrame];
137    }
138}
139
140#if ENABLE(MAC_JAVA_BRIDGE)
141
142static pthread_t mainThread;
143
144static void updateStyleIfNeededForBindings(JSC::ExecState*, JSC::JSObject* rootObject)
145{
146    if (pthread_self() != mainThread)
147        return;
148
149    if (!rootObject)
150        return;
151
152    JSDOMWindow* window = static_cast<JSDOMWindow*>(rootObject);
153    if (!window)
154        return;
155
156    Frame* frame = window->impl()->frame();
157    if (!frame)
158        return;
159
160    frame->document()->updateStyleIfNeeded();
161}
162
163void ScriptController::initJavaJSBindings()
164{
165    mainThread = pthread_self();
166    JSC::Bindings::JavaJSObject::initializeJNIThreading();
167    JSC::Bindings::Instance::setDidExecuteFunction(updateStyleIfNeededForBindings);
168}
169
170#endif
171
172}
173