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/*
 * Copyright (c) 2012 Yoann Blein
 * Licensed under the simplified BSD license.
 * See Documentation/Licenses/BSD-simplified.txt for more information.
 */

#include "ScreenSharingController.h"

#include <Swiften/ScreenSharing/ScreenSharingManager.h>
#include <Swiften/ScreenSharing/IncomingScreenSharing.h>
#include <Swiften/ScreenSharing/OutgoingScreenSharing.h>
#include <Swiften/ScreenSharing/Image.h>
#include <Swiften/Network/TimerFactory.h>
#include <Swiften/Network/Timer.h>
#include "Swift/QtUI/ScreenSharing/QtDesktopScreenGrabber.h"
#include "Swift/Controllers/UIInterfaces/RemoteScreenWindowFactory.h"
#include "Swift/Controllers/UIInterfaces/RemoteScreenWindow.h"

#include <boost/bind.hpp>

namespace Swift {

ScreenSharingController::ScreenSharingController(ScreenSharingManager *screenSharingManager, RemoteScreenWindowFactory* remoteScreenViewerFactory, TimerFactory* timerFactory)
	: screenSharingManager(screenSharingManager), remoteScreenWindowFactory(remoteScreenViewerFactory), remoteScreenWindow(0),
	  grabTimer(timerFactory->createTimer(500)), screenGrabber(new QtDesktopScreenGrabber)
{
	screenSharingManager->onIncomingScreenSharing.connect(boost::bind(&ScreenSharingController::handleIncomingScreenSharing, this, _1));
	grabTimer->onTick.connect(boost::bind(&ScreenSharingController::handleGrabTimerTick, this));
}

ScreenSharingController::~ScreenSharingController()
{
	grabTimer->onTick.disconnect(boost::bind(&ScreenSharingController::handleGrabTimerTick, this));
	delete remoteScreenWindow;
}

boost::shared_ptr<OutgoingScreenSharing> ScreenSharingController::createOugoingScreenSharing(const JID& to)
{
	if (!oss) {
		oss = screenSharingManager->createOutgoingScreenSharing(to);
		if (oss) {
			oss->onReady.connect(boost::bind(&ScreenSharingController::handleOssReady, this));
			oss->onFinished.connect(boost::bind(&ScreenSharingController::handleOutgoingFinished, this));
			const Image& image = screenGrabber->grab();
			oss->start(image.width, image.height);
		}
		return oss;
	}
	return boost::shared_ptr<OutgoingScreenSharing>();
}

void ScreenSharingController::handleIncomingScreenSharing(boost::shared_ptr<IncomingScreenSharing> incomingScreenSharing)
{
	if (iss) {
		incomingScreenSharing->cancel();
	} else {
		iss = incomingScreenSharing;
		iss->accept();
		iss->onFinished.connect(boost::bind(&ScreenSharingController::handleIncomingFinished, this));
		remoteScreenWindow = remoteScreenWindowFactory->createRemoteScreenViewer(iss);
//		onNewIncomingScreenSharing(iss);
	}
}

void ScreenSharingController::handleGrabTimerTick()
{
	if (oss) {
		grabTimer->start();
		oss->addImage(screenGrabber->grab());
	}
}

void ScreenSharingController::handleOssReady()
{
	handleGrabTimerTick();
}

void ScreenSharingController::handleIncomingFinished()
{
	iss->onFinished.disconnect(boost::bind(&ScreenSharingController::handleIncomingFinished, this));
	iss.reset();
	delete remoteScreenWindow;
	remoteScreenWindow = 0;
}

void ScreenSharingController::handleOutgoingFinished()
{
	oss->onReady.disconnect(boost::bind(&ScreenSharingController::handleOssReady, this));
	oss->onFinished.disconnect(boost::bind(&ScreenSharingController::handleOutgoingFinished, this));
	oss.reset();
}

}