Merge WebKit at r75315: Initial merge by git.

Change-Id: I570314b346ce101c935ed22a626b48c2af266b84

1 files changed, 212 insertions, 0 deletions

diff --git a/Source/WebCore/bindings/js/ScriptController.h b/Source/WebCore/bindings/js/ScriptController.h
new file mode 100644
index 0000000..413b88a
--- /dev/null
+++ b/Source/WebCore/bindings/js/ScriptController.h
@@ -0,0 +1,212 @@
+/*
+ *  Copyright (C) 1999 Harri Porten (porten@kde.org)
+ *  Copyright (C) 2001 Peter Kelly (pmk@post.com)
+ *  Copyright (C) 2008 Apple Inc. All rights reserved.
+ *  Copyright (C) 2008 Eric Seidel <eric@webkit.org>
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License as published by the Free Software Foundation; either
+ *  version 2 of the License, or (at your option) any later version.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#ifndef ScriptController_h
+#define ScriptController_h
+
+#include "JSDOMWindowShell.h"
+#include "ScriptControllerBase.h"
+#include "ScriptInstance.h"
+#include <runtime/Protect.h>
+#include <wtf/Forward.h>
+#include <wtf/RefPtr.h>
+
+#if PLATFORM(MAC)
+#include <wtf/RetainPtr.h>
+
+#ifdef __OBJC__
+@class WebScriptObject;
+#else
+class WebScriptObject;
+#endif
+#endif
+
+struct NPObject;
+
+namespace JSC {
+    class JSGlobalObject;
+
+    namespace Bindings {
+        class RootObject;
+    }
+}
+
+namespace WebCore {
+
+class Event;
+class EventListener;
+class HTMLPlugInElement;
+class Frame;
+class Node;
+class ScriptSourceCode;
+class ScriptValue;
+class Widget;
+class XSSAuditor;
+
+typedef HashMap<void*, RefPtr<JSC::Bindings::RootObject> > RootObjectMap;
+
+class ScriptController {
+    friend class ScriptCachedFrameData;
+    typedef WTF::HashMap< RefPtr<DOMWrapperWorld>, JSC::ProtectedPtr<JSDOMWindowShell> > ShellMap;
+
+public:
+    ScriptController(Frame*);
+    ~ScriptController();
+
+    static PassRefPtr<DOMWrapperWorld> createWorld();
+
+    JSDOMWindowShell* createWindowShell(DOMWrapperWorld*);
+    void destroyWindowShell(DOMWrapperWorld*);
+
+    JSDOMWindowShell* windowShell(DOMWrapperWorld* world)
+    {
+        ShellMap::iterator iter = m_windowShells.find(world);
+        return (iter != m_windowShells.end()) ? iter->second.get() : initScript(world);
+    }
+    JSDOMWindowShell* existingWindowShell(DOMWrapperWorld* world) const
+    {
+        ShellMap::const_iterator iter = m_windowShells.find(world);
+        return (iter != m_windowShells.end()) ? iter->second.get() : 0;
+    }
+    JSDOMWindow* globalObject(DOMWrapperWorld* world)
+    {
+        return windowShell(world)->window();
+    }
+
+    static void getAllWorlds(Vector<DOMWrapperWorld*>&);
+
+    ScriptValue executeScript(const ScriptSourceCode&, ShouldAllowXSS shouldAllowXSS = DoNotAllowXSS);
+    ScriptValue executeScript(const String& script, bool forceUserGesture = false, ShouldAllowXSS shouldAllowXSS = DoNotAllowXSS);
+    ScriptValue executeScriptInWorld(DOMWrapperWorld* world, const String& script, bool forceUserGesture = false, ShouldAllowXSS shouldAllowXSS = DoNotAllowXSS);
+
+    // Returns true if argument is a JavaScript URL.
+    bool executeIfJavaScriptURL(const KURL&, ShouldReplaceDocumentIfJavaScriptURL shouldReplaceDocumentIfJavaScriptURL = ReplaceDocumentIfJavaScriptURL);
+
+    // This function must be called from the main thread. It is safe to call it repeatedly.
+    // Darwin is an exception to this rule: it is OK to call this function from any thread, even reentrantly.
+    static void initializeThreading();
+
+    ScriptValue evaluate(const ScriptSourceCode&, ShouldAllowXSS shouldAllowXSS = DoNotAllowXSS);
+    ScriptValue evaluateInWorld(const ScriptSourceCode&, DOMWrapperWorld*, ShouldAllowXSS shouldAllowXSS = DoNotAllowXSS);
+
+    int eventHandlerLineNumber() const;
+    
+    void setProcessingTimerCallback(bool b) { m_processingTimerCallback = b; }
+    static bool processingUserGesture();
+    bool anyPageIsProcessingUserGesture() const;
+
+    static bool canAccessFromCurrentOrigin(Frame*);
+    bool canExecuteScripts(ReasonForCallingCanExecuteScripts);
+
+    // Debugger can be 0 to detach any existing Debugger.
+    void attachDebugger(JSC::Debugger*); // Attaches/detaches in all worlds/window shells.
+    void attachDebugger(JSDOMWindowShell*, JSC::Debugger*);
+
+    void setPaused(bool b) { m_paused = b; }
+    bool isPaused() const { return m_paused; }
+
+    void setAllowPopupsFromPlugin(bool allowPopupsFromPlugin) { m_allowPopupsFromPlugin = allowPopupsFromPlugin; }
+    bool allowPopupsFromPlugin() const { return m_allowPopupsFromPlugin; }
+    
+    const String* sourceURL() const { return m_sourceURL; } // 0 if we are not evaluating any script
+
+    void clearWindowShell(bool goingIntoPageCache = false);
+    void updateDocument();
+
+    void namedItemAdded(HTMLDocument*, const AtomicString&) { }
+    void namedItemRemoved(HTMLDocument*, const AtomicString&) { }
+
+    // Notifies the ScriptController that the securityOrigin of the current
+    // document was modified.  For example, this method is called when
+    // document.domain is set.  This method is *not* called when a new document
+    // is attached to a frame because updateDocument() is called instead.
+    void updateSecurityOrigin();
+
+    void clearScriptObjects();
+    void cleanupScriptObjectsForPlugin(void*);
+
+    void updatePlatformScriptObjects();
+
+    PassScriptInstance createScriptInstanceForWidget(Widget*);
+    JSC::Bindings::RootObject* bindingRootObject();
+    JSC::Bindings::RootObject* cacheableBindingRootObject();
+
+    PassRefPtr<JSC::Bindings::RootObject> createRootObject(void* nativeHandle);
+
+#if ENABLE(INSPECTOR)
+    static void setCaptureCallStackForUncaughtExceptions(bool);
+#endif
+
+#if PLATFORM(MAC)
+#if ENABLE(JAVA_BRIDGE)
+    static void initJavaJSBindings();
+#endif
+    WebScriptObject* windowScriptObject();
+#endif
+
+    JSC::JSObject* jsObjectForPluginElement(HTMLPlugInElement*);
+    
+#if ENABLE(NETSCAPE_PLUGIN_API)
+    NPObject* createScriptObjectForPluginElement(HTMLPlugInElement*);
+    NPObject* windowScriptNPObject();
+#endif
+    
+    XSSAuditor* xssAuditor() { return m_XSSAuditor.get(); }
+
+private:
+    JSDOMWindowShell* initScript(DOMWrapperWorld* world);
+
+    void disconnectPlatformScriptObjects();
+
+    bool isJavaScriptAnchorNavigation() const;
+
+    ShellMap m_windowShells;
+    Frame* m_frame;
+    const String* m_sourceURL;
+
+    bool m_inExecuteScript;
+
+    bool m_processingTimerCallback;
+    bool m_paused;
+    bool m_allowPopupsFromPlugin;
+
+    // The root object used for objects bound outside the context of a plugin, such
+    // as NPAPI plugins. The plugins using these objects prevent a page from being cached so they
+    // are safe to invalidate() when WebKit navigates away from the page that contains them.
+    RefPtr<JSC::Bindings::RootObject> m_bindingRootObject;
+    // Unlike m_bindingRootObject these objects are used in pages that are cached, so they are not invalidate()'d.
+    // This ensures they are still available when the page is restored.
+    RefPtr<JSC::Bindings::RootObject> m_cacheableBindingRootObject;
+    RootObjectMap m_rootObjects;
+#if ENABLE(NETSCAPE_PLUGIN_API)
+    NPObject* m_windowScriptNPObject;
+#endif
+#if PLATFORM(MAC)
+    RetainPtr<WebScriptObject> m_windowScriptObject;
+#endif
+    
+    // The XSSAuditor associated with this ScriptController.
+    OwnPtr<XSSAuditor> m_XSSAuditor;
+};
+
+} // namespace WebCore
+
+#endif // ScriptController_h