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/*
 * Copyright 2006, The Android Open Source Project
 *
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``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.
 */

// TODO: change name to WebFrame.h

#ifndef WEBFRAME_H
#define WEBFRAME_H

#include "FrameLoaderClient.h"
#include "PlatformBridge.h"
#include "PlatformString.h"
#include "WebCoreRefObject.h"
#include <jni.h>
#include <wtf/RefCounted.h>

namespace WebCore {
    class HistoryItem;
    class Image;
    class Page;
    class RenderPart;
    class ResourceHandle;
    class ResourceLoaderAndroid;
    class ResourceRequest;
}

namespace android {

class WebViewCore;

// one instance of WebFrame per Page for calling into Java's BrowserFrame
class WebFrame : public WebCoreRefObject {
  public:
    WebFrame(JNIEnv* env, jobject obj, jobject historyList, WebCore::Page* page);
    ~WebFrame();

    // helper function
    static WebFrame* getWebFrame(const WebCore::Frame* frame);

    virtual PassRefPtr<WebCore::ResourceLoaderAndroid> startLoadingResource(WebCore::ResourceHandle*,
            const WebCore::ResourceRequest& request, bool mainResource,
            bool synchronous);

    void reportError(int errorCode, const WTF::String& description,
            const WTF::String& failingUrl);

    void loadStarted(WebCore::Frame* frame);

    void transitionToCommitted(WebCore::Frame* frame);

    void didFinishLoad(WebCore::Frame* frame);

    void addHistoryItem(WebCore::HistoryItem* item);

    void removeHistoryItem(int index);

    void updateHistoryIndex(int newIndex);

    void setTitle(const WTF::String& title);

    void windowObjectCleared(WebCore::Frame* frame);

    void setProgress(float newProgress);

    const WTF::String userAgentForURL(const WebCore::KURL* url);

    void didReceiveIcon(WebCore::Image* icon);

    void didReceiveTouchIconURL(const WTF::String& url, bool precomposed);
    
    void updateVisitedHistory(const WebCore::KURL& url, bool reload);

    virtual bool canHandleRequest(const WebCore::ResourceRequest& request);

    WebCore::Frame* createWindow(bool dialog, bool userGesture);

    void requestFocus() const;

    void closeWindow(WebViewCore* webViewCore);

    void decidePolicyForFormResubmission(WebCore::FramePolicyFunction func);

    void setUserAgent(WTF::String userAgent) { mUserAgent = userAgent; }

    WTF::String getRawResourceFilename(WebCore::PlatformBridge::rawResId) const;

    float density() const;

    /**
     * When the user initiates a click (via trackball, enter-press, or touch),
     * we set mUserInitiatedClick to true.  If a load happens due to this click,
     * then we ask the application if it wants to override
     * the load. Otherwise, we attempt to load the resource internally.
     * We also check it to determine whether or not to allow webkit to request
     * a scroll.  If it was user initated, the scroll is allowed.
     */
    void setUserInitiatedClick(bool userInitiatedClick) { mUserInitiatedClick = userInitiatedClick; }

    bool userInitiatedClick() { return mUserInitiatedClick; }
    
    WebCore::Page* page() const { return mPage; }

private:
    struct JavaBrowserFrame;
    JavaBrowserFrame* mJavaFrame;
    WebCore::Page* mPage;
    WTF::String mUserAgent;
    bool mUserInitiatedClick;
};

}   // namespace android

#endif // WEBFRAME_H