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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 "BridgeJSC.h"
33#import "DOMAbstractViewFrame.h"
34#import "DOMWindow.h"
35#import "Frame.h"
36#import "FrameLoader.h"
37#import "FrameLoaderClient.h"
38#import "JSDOMWindow.h"
39#import "WebScriptObjectPrivate.h"
40#import "Widget.h"
41#import "objc_instance.h"
42#import "runtime_root.h"
43#import <JavaScriptCore/APICast.h>
44#import <runtime/JSLock.h>
45
46#if ENABLE(NETSCAPE_PLUGIN_API)
47#import "c_instance.h"
48#import "NP_jsobject.h"
49#import "npruntime_impl.h"
50#endif
51
52#if ENABLE(JAVA_BRIDGE)
53#import "JavaInstanceJSC.h"
54#endif
55
56@interface NSObject (WebPlugin)
57- (id)objectForWebScript;
58- (NPObject *)createPluginScriptableObject;
59- (PassRefPtr<JSC::Bindings::Instance>)createPluginBindingsInstance:(PassRefPtr<JSC::Bindings::RootObject>)rootObject;
60@end
61
62using namespace JSC::Bindings;
63
64namespace WebCore {
65
66PassScriptInstance ScriptController::createScriptInstanceForWidget(Widget* widget)
67{
68    NSView* widgetView = widget->platformWidget();
69    if (!widgetView)
70        return 0;
71
72    RefPtr<RootObject> rootObject = createRootObject(widgetView);
73
74    if ([widgetView respondsToSelector:@selector(createPluginBindingsInstance:)])
75        return [widgetView createPluginBindingsInstance:rootObject.release()];
76
77    if ([widgetView respondsToSelector:@selector(objectForWebScript)]) {
78        id objectForWebScript = [widgetView objectForWebScript];
79        if (!objectForWebScript)
80            return 0;
81        return JSC::Bindings::ObjcInstance::create(objectForWebScript, rootObject.release());
82    }
83
84    if ([widgetView respondsToSelector:@selector(createPluginScriptableObject)]) {
85#if !ENABLE(NETSCAPE_PLUGIN_API)
86        return 0;
87#else
88        NPObject* npObject = [widgetView createPluginScriptableObject];
89        if (!npObject)
90            return 0;
91        RefPtr<Instance> instance = JSC::Bindings::CInstance::create(npObject, rootObject.release());
92        // -createPluginScriptableObject returns a retained NPObject.  The caller is expected to release it.
93        _NPN_ReleaseObject(npObject);
94        return instance.release();
95#endif
96    }
97
98#if ENABLE(JAVA_BRIDGE)
99    jobject applet = m_frame->loader()->client()->javaApplet(widgetView);
100    if (!applet)
101        return 0;
102    return JSC::Bindings::JavaInstance::create(applet, rootObject.release());
103#else
104    return 0;
105#endif
106}
107
108WebScriptObject* ScriptController::windowScriptObject()
109{
110    if (!canExecuteScripts(NotAboutToExecuteScript))
111        return 0;
112
113    if (!m_windowScriptObject) {
114        JSC::JSLock lock(JSC::SilenceAssertionsOnly);
115        JSC::Bindings::RootObject* root = bindingRootObject();
116        m_windowScriptObject = [WebScriptObject scriptObjectForJSObject:toRef(windowShell(pluginWorld())) originRootObject:root rootObject:root];
117    }
118
119    ASSERT([m_windowScriptObject.get() isKindOfClass:[DOMAbstractView class]]);
120    return m_windowScriptObject.get();
121}
122
123void ScriptController::updatePlatformScriptObjects()
124{
125    if (m_windowScriptObject) {
126        JSC::Bindings::RootObject* root = bindingRootObject();
127        [m_windowScriptObject.get() _setOriginRootObject:root andRootObject:root];
128    }
129}
130
131void ScriptController::disconnectPlatformScriptObjects()
132{
133    if (m_windowScriptObject) {
134        ASSERT([m_windowScriptObject.get() isKindOfClass:[DOMAbstractView class]]);
135        [(DOMAbstractView *)m_windowScriptObject.get() _disconnectFrame];
136    }
137}
138
139#if ENABLE(JAVA_BRIDGE)
140
141static pthread_t mainThread;
142
143static void updateStyleIfNeededForBindings(JSC::ExecState*, JSC::JSObject* rootObject)
144{
145    if (pthread_self() != mainThread)
146        return;
147
148    if (!rootObject)
149        return;
150
151    JSDOMWindow* window = static_cast<JSDOMWindow*>(rootObject);
152    if (!window)
153        return;
154
155    Frame* frame = window->impl()->frame();
156    if (!frame)
157        return;
158
159    frame->document()->updateStyleIfNeeded();
160}
161
162void ScriptController::initJavaJSBindings()
163{
164    mainThread = pthread_self();
165    JSC::Bindings::JavaJSObject::initializeJNIThreading();
166    JSC::Bindings::Instance::setDidExecuteFunction(updateStyleIfNeededForBindings);
167}
168
169#endif
170
171}
172