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/*
 * Copyright (C) 2006 Zack Rusin <zack@kde.org>
 * Copyright (C) 2006 Apple Computer, Inc.  All rights reserved.
 * Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies)
 * Copyright (C) 2008 Collabora Ltd. All rights reserved.
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. 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.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``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 APPLE COMPUTER, INC. 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 FrameLoaderClientQt_H
#define FrameLoaderClientQt_H

#include <qobject.h>
#include <QUrl>

#include "FrameLoaderClient.h"
#include "KURL.h"
#include "Frame.h"
#include "FrameLoader.h"
#include "RefCounted.h"
#include "ResourceResponse.h"
#include "PluginView.h"
class QWebFrame;

namespace WebCore {

    class AuthenticationChallenge;
    class DocumentLoader;
    class Element;
    class FormState;
    class NavigationAction;
    class String;
    class ResourceLoader;

    struct LoadErrorResetToken;

    class FrameLoaderClientQt : public QObject, public FrameLoaderClient {
        Q_OBJECT

        friend class ::QWebFrame;
        void callPolicyFunction(FramePolicyFunction function, PolicyAction action);
    private slots:
        void slotCallPolicyFunction(int);
    signals:
        void sigCallPolicyFunction(int);
        void loadStarted();
        void loadProgress(int d);
        void loadFinished(bool);
        void titleChanged(const QString& title);

    public:
        FrameLoaderClientQt();
        ~FrameLoaderClientQt();
        virtual void frameLoaderDestroyed();

        void setFrame(QWebFrame* webFrame, Frame* frame);
        QWebFrame* webFrame() const;

        virtual bool hasWebView() const; // mainly for assertions

        virtual void makeRepresentation(DocumentLoader*);
        virtual void forceLayout();
        virtual void forceLayoutForNonHTML();

        virtual void setCopiesOnScroll();

        virtual void detachedFromParent2();
        virtual void detachedFromParent3();

        virtual void assignIdentifierToInitialRequest(unsigned long identifier, WebCore::DocumentLoader*, const WebCore::ResourceRequest&);

        virtual void dispatchWillSendRequest(WebCore::DocumentLoader*, unsigned long, WebCore::ResourceRequest&, const WebCore::ResourceResponse&);
        virtual bool shouldUseCredentialStorage(DocumentLoader*, unsigned long identifier);
        virtual void dispatchDidReceiveAuthenticationChallenge(DocumentLoader*, unsigned long identifier, const AuthenticationChallenge&);
        virtual void dispatchDidCancelAuthenticationChallenge(DocumentLoader*, unsigned long identifier, const AuthenticationChallenge&);
        virtual void dispatchDidReceiveResponse(WebCore::DocumentLoader*, unsigned long, const WebCore::ResourceResponse&);
        virtual void dispatchDidReceiveContentLength(WebCore::DocumentLoader*, unsigned long, int);
        virtual void dispatchDidFinishLoading(WebCore::DocumentLoader*, unsigned long);
        virtual void dispatchDidFailLoading(WebCore::DocumentLoader*, unsigned long, const WebCore::ResourceError&);
        virtual bool dispatchDidLoadResourceFromMemoryCache(WebCore::DocumentLoader*, const WebCore::ResourceRequest&, const WebCore::ResourceResponse&, int);

        virtual void dispatchDidHandleOnloadEvents();
        virtual void dispatchDidReceiveServerRedirectForProvisionalLoad();
        virtual void dispatchDidCancelClientRedirect();
        virtual void dispatchWillPerformClientRedirect(const KURL&, double interval, double fireDate);
        virtual void dispatchDidChangeLocationWithinPage();
        virtual void dispatchWillClose();
        virtual void dispatchDidReceiveIcon();
        virtual void dispatchDidStartProvisionalLoad();
        virtual void dispatchDidReceiveTitle(const String& title);
        virtual void dispatchDidCommitLoad();
        virtual void dispatchDidFailProvisionalLoad(const ResourceError&);
        virtual void dispatchDidFailLoad(const WebCore::ResourceError&);
        virtual void dispatchDidFinishDocumentLoad();
        virtual void dispatchDidFinishLoad();
        virtual void dispatchDidFirstLayout();
        virtual void dispatchDidFirstVisuallyNonEmptyLayout();

        virtual WebCore::Frame* dispatchCreatePage();
        virtual void dispatchShow();

        virtual void dispatchDecidePolicyForMIMEType(FramePolicyFunction function, const WebCore::String&, const WebCore::ResourceRequest&);
        virtual void dispatchDecidePolicyForNewWindowAction(FramePolicyFunction function, const WebCore::NavigationAction&, const WebCore::ResourceRequest&, PassRefPtr<FormState>, const WebCore::String&);
        virtual void dispatchDecidePolicyForNavigationAction(FramePolicyFunction function, const WebCore::NavigationAction&, const WebCore::ResourceRequest&, PassRefPtr<FormState>);
        virtual void cancelPolicyCheck();

        virtual void dispatchUnableToImplementPolicy(const WebCore::ResourceError&);

        virtual void dispatchWillSubmitForm(FramePolicyFunction, PassRefPtr<FormState>);

        virtual void dispatchDidLoadMainResource(DocumentLoader*);
        virtual void revertToProvisionalState(DocumentLoader*);
        virtual void setMainDocumentError(DocumentLoader*, const ResourceError&);

        virtual void postProgressStartedNotification();
        virtual void postProgressEstimateChangedNotification();
        virtual void postProgressFinishedNotification();

        virtual void setMainFrameDocumentReady(bool);

        virtual void startDownload(const WebCore::ResourceRequest&);

        virtual void willChangeTitle(DocumentLoader*);
        virtual void didChangeTitle(DocumentLoader*);

        virtual void committedLoad(WebCore::DocumentLoader*, const char*, int);
        virtual void finishedLoading(DocumentLoader*);

        virtual void updateGlobalHistory();
        virtual bool shouldGoToHistoryItem(HistoryItem*) const;

        virtual ResourceError cancelledError(const ResourceRequest&);
        virtual ResourceError blockedError(const ResourceRequest&);
        virtual ResourceError cannotShowURLError(const ResourceRequest&);
        virtual ResourceError interruptForPolicyChangeError(const ResourceRequest&);

        virtual ResourceError cannotShowMIMETypeError(const ResourceResponse&);
        virtual ResourceError fileDoesNotExistError(const ResourceResponse&);
        virtual ResourceError pluginWillHandleLoadError(const ResourceResponse&);

        virtual bool shouldFallBack(const ResourceError&);

        virtual bool canHandleRequest(const WebCore::ResourceRequest&) const;
        virtual bool canShowMIMEType(const String& MIMEType) const;
        virtual bool representationExistsForURLScheme(const String& URLScheme) const;
        virtual String generatedMIMETypeForURLScheme(const String& URLScheme) const;

        virtual void frameLoadCompleted();
        virtual void saveViewStateToItem(WebCore::HistoryItem*);
        virtual void restoreViewState();
        virtual void provisionalLoadStarted();
        virtual void didFinishLoad();
        virtual void prepareForDataSourceReplacement();

        virtual WTF::PassRefPtr<WebCore::DocumentLoader> createDocumentLoader(const WebCore::ResourceRequest&, const WebCore::SubstituteData&);
        virtual void setTitle(const String& title, const KURL&);

        virtual String userAgent(const WebCore::KURL&);

        virtual void savePlatformDataToCachedPage(WebCore::CachedPage*);
        virtual void transitionToCommittedFromCachedPage(WebCore::CachedPage*);
        virtual void transitionToCommittedForNewPage();

        virtual bool canCachePage() const;
        virtual void download(WebCore::ResourceHandle*, const WebCore::ResourceRequest&, const WebCore::ResourceRequest&, const WebCore::ResourceResponse&);

        virtual PassRefPtr<Frame> createFrame(const KURL& url, const String& name, HTMLFrameOwnerElement* ownerElement,
                                   const String& referrer, bool allowsScrolling, int marginWidth, int marginHeight) ;
        virtual Widget* createPlugin(const IntSize&, Element*, const KURL&, const Vector<String>&, const Vector<String>&, const String&, bool);
        virtual void redirectDataToPlugin(Widget* pluginWidget);

        virtual Widget* createJavaAppletWidget(const IntSize&, Element*, const KURL& baseURL, const Vector<String>& paramNames, const Vector<String>& paramValues);

        virtual ObjectContentType objectContentType(const KURL& url, const String& mimeType);
        virtual String overrideMediaType() const;

        virtual void windowObjectCleared();
        virtual void didPerformFirstNavigation() const;

        virtual void registerForIconNotification(bool);

        QString chooseFile(const QString& oldFile);

    private:
        Frame *m_frame;
        QWebFrame *m_webFrame;
        ResourceResponse m_response;
        bool m_firstData;
        FramePolicyFunction m_policyFunction;

        // Plugin view to redirect data to
        WebCore::PluginView* m_pluginView;
        bool m_hasSentResponseToPlugin;

        bool m_loadSucceeded;
    };

}

#endif