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/*
 * Copyright (C) 2010 Apple 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:
 * 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 INC. AND ITS 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 APPLE INC. OR ITS 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 WebFrameLoaderClient_h
#define WebFrameLoaderClient_h

#include <WebCore/FrameLoaderClient.h>

namespace WebKit {

class PluginView;
class WebFrame;
    
class WebFrameLoaderClient : public WebCore::FrameLoaderClient {
public:
    WebFrameLoaderClient(WebFrame*);
    ~WebFrameLoaderClient();

    WebFrame* webFrame() const { return m_frame; }

    bool frameHasCustomRepresentation() const { return m_frameHasCustomRepresentation; }

private:
    virtual void frameLoaderDestroyed();

    virtual bool hasHTMLView() const;
    virtual bool hasWebView() const;
    
    virtual void makeRepresentation(WebCore::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 identifier, WebCore::ResourceRequest&, const WebCore::ResourceResponse& redirectResponse);
    virtual bool shouldUseCredentialStorage(WebCore::DocumentLoader*, unsigned long identifier);
    virtual void dispatchDidReceiveAuthenticationChallenge(WebCore::DocumentLoader*, unsigned long identifier, const WebCore::AuthenticationChallenge&);
    virtual void dispatchDidCancelAuthenticationChallenge(WebCore::DocumentLoader*, unsigned long identifier, const WebCore::AuthenticationChallenge&);        
#if USE(PROTECTION_SPACE_AUTH_CALLBACK)
    virtual bool canAuthenticateAgainstProtectionSpace(WebCore::DocumentLoader*, unsigned long identifier, const WebCore::ProtectionSpace&);
#endif
    virtual void dispatchDidReceiveResponse(WebCore::DocumentLoader*, unsigned long identifier, const WebCore::ResourceResponse&);
    virtual void dispatchDidReceiveContentLength(WebCore::DocumentLoader*, unsigned long identifier, int lengthReceived);
    virtual void dispatchDidFinishLoading(WebCore::DocumentLoader*, unsigned long identifier);
    virtual void dispatchDidFailLoading(WebCore::DocumentLoader*, unsigned long identifier, const WebCore::ResourceError&);
    virtual bool dispatchDidLoadResourceFromMemoryCache(WebCore::DocumentLoader*, const WebCore::ResourceRequest&, const WebCore::ResourceResponse&, int length);
    virtual void dispatchDidLoadResourceByXMLHttpRequest(unsigned long identifier, const WTF::String&);
    
    virtual void dispatchDidHandleOnloadEvents();
    virtual void dispatchDidReceiveServerRedirectForProvisionalLoad();
    virtual void dispatchDidCancelClientRedirect();
    virtual void dispatchWillPerformClientRedirect(const WebCore::KURL&, double interval, double fireDate);
    virtual void dispatchDidChangeLocationWithinPage();
    virtual void dispatchDidPushStateWithinPage();
    virtual void dispatchDidReplaceStateWithinPage();
    virtual void dispatchDidPopStateWithinPage();
    virtual void dispatchWillClose();
    virtual void dispatchDidReceiveIcon();
    virtual void dispatchDidStartProvisionalLoad();
    virtual void dispatchDidReceiveTitle(const String& title);
    virtual void dispatchDidChangeIcons();
    virtual void dispatchDidCommitLoad();
    virtual void dispatchDidFailProvisionalLoad(const WebCore::ResourceError&);
    virtual void dispatchDidFailLoad(const WebCore::ResourceError&);
    virtual void dispatchDidFinishDocumentLoad();
    virtual void dispatchDidFinishLoad();
    virtual void dispatchDidFirstLayout();
    virtual void dispatchDidFirstVisuallyNonEmptyLayout();
    
    virtual WebCore::Frame* dispatchCreatePage(const WebCore::NavigationAction&);
    virtual void dispatchShow();
    
    virtual void dispatchDecidePolicyForResponse(WebCore::FramePolicyFunction, const WebCore::ResourceResponse&, const WebCore::ResourceRequest&);
    virtual void dispatchDecidePolicyForNewWindowAction(WebCore::FramePolicyFunction, const WebCore::NavigationAction&, const WebCore::ResourceRequest&, PassRefPtr<WebCore::FormState>, const String& frameName);
    virtual void dispatchDecidePolicyForNavigationAction(WebCore::FramePolicyFunction, const WebCore::NavigationAction&, const WebCore::ResourceRequest&, PassRefPtr<WebCore::FormState>);
    virtual void cancelPolicyCheck();
    
    virtual void dispatchUnableToImplementPolicy(const WebCore::ResourceError&);
    
    virtual void dispatchWillSendSubmitEvent(WebCore::HTMLFormElement*) { }
    virtual void dispatchWillSubmitForm(WebCore::FramePolicyFunction, PassRefPtr<WebCore::FormState>);
    
    virtual void dispatchDidLoadMainResource(WebCore::DocumentLoader*);
    virtual void revertToProvisionalState(WebCore::DocumentLoader*);
    virtual void setMainDocumentError(WebCore::DocumentLoader*, const WebCore::ResourceError&);
    
    // Maybe these should go into a ProgressTrackerClient some day
    virtual void willChangeEstimatedProgress();
    virtual void didChangeEstimatedProgress();
    virtual void postProgressStartedNotification();
    virtual void postProgressEstimateChangedNotification();
    virtual void postProgressFinishedNotification();
    
    virtual void setMainFrameDocumentReady(bool);
    
    virtual void startDownload(const WebCore::ResourceRequest&);
    
    virtual void willChangeTitle(WebCore::DocumentLoader*);
    virtual void didChangeTitle(WebCore::DocumentLoader*);
    
    virtual void committedLoad(WebCore::DocumentLoader*, const char*, int);
    virtual void finishedLoading(WebCore::DocumentLoader*);
    
    virtual void updateGlobalHistory();
    virtual void updateGlobalHistoryRedirectLinks();
    
    virtual bool shouldGoToHistoryItem(WebCore::HistoryItem*) const;
    virtual bool shouldStopLoadingForHistoryItem(WebCore::HistoryItem*) const;
    virtual void dispatchDidAddBackForwardItem(WebCore::HistoryItem*) const;
    virtual void dispatchDidRemoveBackForwardItem(WebCore::HistoryItem*) const;
    virtual void dispatchDidChangeBackForwardIndex() const;

    virtual void didDisplayInsecureContent();
    virtual void didRunInsecureContent(WebCore::SecurityOrigin*, const WebCore::KURL&);

    virtual WebCore::ResourceError cancelledError(const WebCore::ResourceRequest&);
    virtual WebCore::ResourceError blockedError(const WebCore::ResourceRequest&);
    virtual WebCore::ResourceError cannotShowURLError(const WebCore::ResourceRequest&);
    virtual WebCore::ResourceError interruptForPolicyChangeError(const WebCore::ResourceRequest&);
    
    virtual WebCore::ResourceError cannotShowMIMETypeError(const WebCore::ResourceResponse&);
    virtual WebCore::ResourceError fileDoesNotExistError(const WebCore::ResourceResponse&);
    virtual WebCore::ResourceError pluginWillHandleLoadError(const WebCore::ResourceResponse&);
    
    virtual bool shouldFallBack(const WebCore::ResourceError&);
    
    virtual bool canHandleRequest(const WebCore::ResourceRequest&) const;
    virtual bool canShowMIMEType(const String& MIMEType) const;
    virtual bool canShowMIMETypeAsHTML(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 PassRefPtr<WebCore::DocumentLoader> createDocumentLoader(const WebCore::ResourceRequest&, const WebCore::SubstituteData&);
    virtual void setTitle(const String& title, const WebCore::KURL&);
    
    virtual String userAgent(const WebCore::KURL&);
    
    virtual void savePlatformDataToCachedFrame(WebCore::CachedFrame*);
    virtual void transitionToCommittedFromCachedFrame(WebCore::CachedFrame*);
    virtual void transitionToCommittedForNewPage();

    virtual void didSaveToPageCache();
    virtual void didRestoreFromPageCache();

    virtual void dispatchDidBecomeFrameset(bool);

    virtual bool canCachePage() const;
    virtual void download(WebCore::ResourceHandle*, const WebCore::ResourceRequest&, const WebCore::ResourceRequest&, const WebCore::ResourceResponse&);
    
    virtual PassRefPtr<WebCore::Frame> createFrame(const WebCore::KURL& url, const String& name, WebCore::HTMLFrameOwnerElement* ownerElement,
                                          const String& referrer, bool allowsScrolling, int marginWidth, int marginHeight);
    virtual void didTransferChildFrameToNewDocument(WebCore::Page*);
    virtual void transferLoadingResourceFromPage(unsigned long, WebCore::DocumentLoader*, const WebCore::ResourceRequest&, WebCore::Page*);
    
    virtual PassRefPtr<WebCore::Widget> createPlugin(const WebCore::IntSize&, WebCore::HTMLPlugInElement*, const WebCore::KURL&, const Vector<String>&, const Vector<String>&, const String&, bool loadManually);
    virtual void redirectDataToPlugin(WebCore::Widget* pluginWidget);
    
    virtual PassRefPtr<WebCore::Widget> createJavaAppletWidget(const WebCore::IntSize&, WebCore::HTMLAppletElement*, const WebCore::KURL& baseURL, const Vector<String>& paramNames, const Vector<String>& paramValues);
    
    virtual WebCore::ObjectContentType objectContentType(const WebCore::KURL& url, const String& mimeType);
    virtual String overrideMediaType() const;

    virtual void dispatchDidClearWindowObjectInWorld(WebCore::DOMWrapperWorld*);

    virtual void documentElementAvailable();
    virtual void didPerformFirstNavigation() const; // "Navigation" here means a transition from one page to another that ends up in the back/forward list.
    
    virtual void registerForIconNotification(bool listen = true);
    
#if PLATFORM(MAC)
    virtual RemoteAXObjectRef accessibilityRemoteObject();
    
#if ENABLE(MAC_JAVA_BRIDGE)
    virtual jobject javaApplet(NSView*);
#endif
    virtual NSCachedURLResponse* willCacheResponse(WebCore::DocumentLoader*, unsigned long identifier, NSCachedURLResponse*) const;
#endif
#if USE(CFNETWORK)
    virtual bool shouldCacheResponse(WebCore::DocumentLoader*, unsigned long identifier, const WebCore::ResourceResponse&, const unsigned char* data, unsigned long long length);
#endif
    
    virtual bool shouldUsePluginDocument(const String& /*mimeType*/) const;

    virtual void didChangeScrollOffset();

    virtual PassRefPtr<WebCore::FrameNetworkingContext> createNetworkingContext();

    WebFrame* m_frame;
    RefPtr<PluginView> m_pluginView;
    bool m_hasSentResponseToPluginView;
    bool m_frameHasCustomRepresentation;
};

} // namespace WebKit

#endif // WebFrameLoaderClient_h