diff -r 000000000000 -r 4f2f89ce4247 WebCore/bindings/v8/ScriptController.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/bindings/v8/ScriptController.h	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,211 @@
+/*
+ * Copyright (C) 2008, 2009 Google Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef ScriptController_h
+#define ScriptController_h
+
+#include "ScriptControllerBase.h"
+#include "ScriptInstance.h"
+#include "ScriptValue.h"
+
+#include "V8Proxy.h"
+
+#include <v8.h>
+
+#include <wtf/HashMap.h>
+#include <wtf/RefCounted.h>
+#include <wtf/Vector.h>
+
+struct NPObject;
+
+namespace WebCore {
+
+class DOMWrapperWorld;
+class Event;
+class Frame;
+class HTMLPlugInElement;
+class ScriptSourceCode;
+class String;
+class Widget;
+class XSSAuditor;
+
+class ScriptController {
+public:
+    ScriptController(Frame*);
+    ~ScriptController();
+
+    // FIXME: V8Proxy should either be folded into ScriptController
+    // or this accessor should be made JSProxy*
+    V8Proxy* proxy() { return m_proxy.get(); }
+
+    ScriptValue executeScript(const ScriptSourceCode&, ShouldAllowXSS shouldAllowXSS = DoNotAllowXSS);
+    ScriptValue executeScript(const String& script, bool forceUserGesture = false, ShouldAllowXSS shouldAllowXSS = DoNotAllowXSS);
+
+    // Returns true if argument is a JavaScript URL.
+    bool executeIfJavaScriptURL(const KURL&, bool userGesture = false, ShouldReplaceDocumentIfJavaScriptURL shouldReplaceDocumentIfJavaScriptURL = ReplaceDocumentIfJavaScriptURL);
+
+    // This function must be called from the main thread. It is safe to call it repeatedly.
+    static void initializeThreading();
+
+    // Evaluate a script file in the environment of this proxy.
+    // If succeeded, 'succ' is set to true and result is returned
+    // as a string.
+    ScriptValue evaluate(const ScriptSourceCode&, ShouldAllowXSS shouldAllowXSS = DoNotAllowXSS);
+
+    void evaluateInIsolatedWorld(unsigned worldID, const Vector<ScriptSourceCode>&);
+
+    // Executes JavaScript in an isolated world. The script gets its own global scope,
+    // its own prototypes for intrinsic JavaScript objects (String, Array, and so-on),
+    // and its own wrappers for all DOM nodes and DOM constructors.
+    //
+    // If an isolated world with the specified ID already exists, it is reused.
+    // Otherwise, a new world is created.
+    //
+    // If the worldID is 0, a new world is always created.
+    //
+    // FIXME: Get rid of extensionGroup here.
+    void evaluateInIsolatedWorld(unsigned worldID, const Vector<ScriptSourceCode>&, int extensionGroup);
+
+    // Masquerade 'this' as the windowShell.
+    // This is a bit of a hack, but provides reasonable compatibility
+    // with what JSC does as well.
+    ScriptController* windowShell(DOMWrapperWorld*) { return this; }
+    ScriptController* existingWindowShell(DOMWrapperWorld*) { return this; }
+
+    XSSAuditor* xssAuditor() { return m_XSSAuditor.get(); }
+
+    void collectGarbage();
+
+    // Notify V8 that the system is running low on memory.
+    void lowMemoryNotification();
+
+    // Creates a property of the global object of a frame.
+    void bindToWindowObject(Frame*, const String& key, NPObject*);
+
+    PassScriptInstance createScriptInstanceForWidget(Widget*);
+
+    // Check if the javascript engine has been initialized.
+    bool haveInterpreter() const;
+
+    static bool canAccessFromCurrentOrigin(Frame*);
+
+#if ENABLE(INSPECTOR)
+    static void setCaptureCallStackForUncaughtExceptions(bool);
+#endif
+
+    bool canExecuteScripts(ReasonForCallingCanExecuteScripts);
+
+    // FIXME: void* is a compile hack.
+    void attachDebugger(void*);
+
+    // --- Static methods assume we are running VM in single thread, ---
+    // --- and there is only one VM instance.                        ---
+
+    // Returns the frame for the entered context. See comments in
+    // V8Proxy::retrieveFrameForEnteredContext() for more information.
+    static Frame* retrieveFrameForEnteredContext();
+
+    // Returns the frame for the current context. See comments in
+    // V8Proxy::retrieveFrameForEnteredContext() for more information.
+    static Frame* retrieveFrameForCurrentContext();
+
+    // Check whether it is safe to access a frame in another domain.
+    static bool isSafeScript(Frame*);
+
+    // Pass command-line flags to the JS engine.
+    static void setFlags(const char* string, int length);
+
+    // Protect and unprotect the JS wrapper from garbage collected.
+    static void gcProtectJSWrapper(void*);
+    static void gcUnprotectJSWrapper(void*);
+
+    void finishedWithEvent(Event*);
+
+    int eventHandlerLineNumber() const;
+    int eventHandlerColumnNumber() const;
+
+    void setProcessingTimerCallback(bool processingTimerCallback) { m_processingTimerCallback = processingTimerCallback; }
+    // FIXME: Currently we don't use the parameter world at all.
+    // See http://trac.webkit.org/changeset/54182
+    bool processingUserGesture(DOMWrapperWorld* world = 0) const;
+    bool anyPageIsProcessingUserGesture() const;
+
+    void setPaused(bool paused) { m_paused = paused; }
+    bool isPaused() const { return m_paused; }
+
+    const String* sourceURL() const { return m_sourceURL; } // 0 if we are not evaluating any script.
+
+    void clearWindowShell(bool = false);
+    void updateDocument();
+
+    void namedItemAdded(HTMLDocument*, const AtomicString&);
+    void namedItemRemoved(HTMLDocument*, const AtomicString&);
+
+    void updateSecurityOrigin();
+    void clearScriptObjects();
+    void updatePlatformScriptObjects();
+    void cleanupScriptObjectsForPlugin(Widget*);
+
+#if ENABLE(NETSCAPE_PLUGIN_API)
+    NPObject* createScriptObjectForPluginElement(HTMLPlugInElement*);
+    NPObject* windowScriptNPObject();
+#endif
+
+    // Dummy method to avoid a bunch of ifdef's in WebCore.
+    void evaluateInWorld(const ScriptSourceCode&, DOMWrapperWorld*);
+    static void getAllWorlds(Vector<DOMWrapperWorld*>& worlds);
+
+private:
+    Frame* m_frame;
+    const String* m_sourceURL;
+
+    bool m_inExecuteScript;
+
+    bool m_processingTimerCallback;
+    bool m_paused;
+
+    OwnPtr<V8Proxy> m_proxy;
+    typedef HashMap<Widget*, NPObject*> PluginObjectMap;
+
+    // A mapping between Widgets and their corresponding script object.
+    // This list is used so that when the plugin dies, we can immediately
+    // invalidate all sub-objects which are associated with that plugin.
+    // The frame keeps a NPObject reference for each item on the list.
+    PluginObjectMap m_pluginObjects;
+#if ENABLE(NETSCAPE_PLUGIN_API)
+    NPObject* m_windowScriptNPObject;
+#endif
+    // The XSSAuditor associated with this ScriptController.
+    OwnPtr<XSSAuditor> m_XSSAuditor;
+};
+
+} // namespace WebCore
+
+#endif // ScriptController_h