/*

 * Copyright (C) 2010 Google Inc. All rights reserved.

 *

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 * 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,

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 */

#include "config.h"

#include "WebGeolocationServiceBridgeImpl.h"

#include "Chrome.h"

#include "ChromeClientImpl.h"

#include "Frame.h"

#include "Geolocation.h"

#include "GeolocationServiceChromium.h"

#include "Geoposition.h"

#include "Page.h"

#include "PositionError.h"

#include "PositionOptions.h"

#include "WebFrame.h"

#include "WebFrameImpl.h"

#include "WebGeolocationService.h"

#include "WebGeolocationServiceBridge.h"

#include "WebViewClient.h"

#include "WebViewImpl.h"

#if ENABLE(GEOLOCATION)

using WebCore::Coordinates;

using WebCore::Frame;

using WebCore::Geolocation;

using WebCore::GeolocationServiceBridge;

using WebCore::GeolocationServiceChromium;

using WebCore::GeolocationServiceClient;

using WebCore::Geoposition;

using WebCore::PositionError;

using WebCore::PositionOptions;

using WebCore::String;

namespace WebKit {

class WebGeolocationServiceBridgeImpl : public GeolocationServiceBridge, public WebGeolocationServiceBridge {

public:

    explicit WebGeolocationServiceBridgeImpl(GeolocationServiceChromium*);

    virtual ~WebGeolocationServiceBridgeImpl();

    // GeolocationServiceBridge

    virtual bool startUpdating(PositionOptions*);

    virtual void stopUpdating();

    virtual void suspend();

    virtual void resume();

    virtual int getBridgeId() const;

    virtual void attachBridgeIfNeeded();

    // WebGeolocationServiceBridge

    virtual void setIsAllowed(bool allowed);

    virtual void setLastPosition(double latitude, double longitude, bool providesAltitude, double altitude, double accuracy, bool providesAltitudeAccuracy, double altitudeAccuracy, bool providesHeading, double heading, bool providesSpeed, double speed, long long timestamp);

    virtual void setLastError(int errorCode, const WebString& message);

private:

    WebViewClient* getWebViewClient();

    // GeolocationServiceChromium owns us, we only have a pointer back to it.

    GeolocationServiceChromium* m_GeolocationServiceChromium;

    int m_bridgeId;

};

GeolocationServiceBridge* createGeolocationServiceBridgeImpl(GeolocationServiceChromium* geolocationServiceChromium)

{

    return new WebGeolocationServiceBridgeImpl(geolocationServiceChromium);

}

WebGeolocationServiceBridgeImpl::WebGeolocationServiceBridgeImpl(GeolocationServiceChromium* geolocationServiceChromium)

    : m_GeolocationServiceChromium(geolocationServiceChromium)

    , m_bridgeId(0)

{

}

WebGeolocationServiceBridgeImpl::~WebGeolocationServiceBridgeImpl()

{

    WebKit::WebViewClient* webViewClient = getWebViewClient();

    // Geolocation has an OwnPtr to us, and it's destroyed after the frame has

    // been potentially disconnected. In this case, it calls stopUpdating()

    // has been called and we have already detached ourselves.

    if (!webViewClient)

        ASSERT(!m_bridgeId);

    else if (m_bridgeId)

        webViewClient->geolocationService()->detachBridge(m_bridgeId);

}

bool WebGeolocationServiceBridgeImpl::startUpdating(PositionOptions* positionOptions)

{

    attachBridgeIfNeeded();

    getWebViewClient()->geolocationService()->startUpdating(m_bridgeId, m_GeolocationServiceChromium->frame()->document()->url(), positionOptions->enableHighAccuracy());

    return true;

}

void WebGeolocationServiceBridgeImpl::stopUpdating()

{

    WebViewClient* webViewClient = getWebViewClient();

    if (m_bridgeId && webViewClient) {

        WebGeolocationService* geolocationService = webViewClient->geolocationService();

        geolocationService->stopUpdating(m_bridgeId);

        geolocationService->detachBridge(m_bridgeId);

    }

    m_bridgeId = 0;

}

void WebGeolocationServiceBridgeImpl::suspend()

{

    getWebViewClient()->geolocationService()->suspend(m_bridgeId);

}

void WebGeolocationServiceBridgeImpl::resume()

{

    getWebViewClient()->geolocationService()->resume(m_bridgeId);

}

int WebGeolocationServiceBridgeImpl::getBridgeId() const

{

    return m_bridgeId;

}

void WebGeolocationServiceBridgeImpl::attachBridgeIfNeeded()

{

    if (!m_bridgeId)

        m_bridgeId = getWebViewClient()->geolocationService()->attachBridge(this);

}

void WebGeolocationServiceBridgeImpl::setIsAllowed(bool allowed)

{

    m_GeolocationServiceChromium->setIsAllowed(allowed);

}

void WebGeolocationServiceBridgeImpl::setLastPosition(double latitude, double longitude, bool providesAltitude, double altitude, double accuracy, bool providesAltitudeAccuracy, double altitudeAccuracy, bool providesHeading, double heading, bool providesSpeed, double speed, long long timestamp)

{

    RefPtr<Geoposition> geoposition = Geoposition::create(Coordinates::create(latitude, longitude, providesAltitude, altitude, accuracy, providesAltitudeAccuracy, altitudeAccuracy, providesHeading, heading, providesSpeed, speed), timestamp);

    m_GeolocationServiceChromium->setLastPosition(geoposition);

}

void WebGeolocationServiceBridgeImpl::setLastError(int errorCode, const WebString& message)

{

    m_GeolocationServiceChromium->setLastError(errorCode, message);

}

WebViewClient* WebGeolocationServiceBridgeImpl::getWebViewClient()

{

    Frame* frame = m_GeolocationServiceChromium->frame();

    if (!frame || !frame->page())

        return 0;

    WebKit::ChromeClientImpl* chromeClientImpl = static_cast<WebKit::ChromeClientImpl*>(frame->page()->chrome()->client());

    WebKit::WebViewClient* webViewClient = chromeClientImpl->webView()->client();

    return webViewClient;

}

} // namespace WebKit

#endif // ENABLE(GEOLOCATION)