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#include "fbgui.h"
#include "downloadManager.h"
#include "javascriptInterface.h"

#include <iostream>
#include <QUrl>
#include <QDir>
#include <QHostInfo>
#include <QtWebKit>
#include <QPlainTextEdit>

// Note: Absolute paths. binPath empty init, set in main() after QApplication instanciated.
QString binPath("");
QString downloadPath(binPath + "/downloads");
QUrl baseURL(DEFAULT_URL);
bool debug = false;
int updateInterval = DEFAULT_UPDATE_INTERVAL;
//-------------------------------------------------------------------------------------------
fbgui::fbgui()
{
	/* debug console test */
	if (debug){
		logView = new QTextEdit(this);
		logView->resize(QSize(640, 480));
		QPalette qp;
		qp.setColor(QPalette::Base, Qt::black);
		logView->setPalette(qp);
		logView->setTextColor(Qt::green);
		logView->setVisible(false);
		logView->setPlainText("empty console.");
	}

	/* initialize "browser" */
	checkHost();
	webView = new QWebView(this);
	webView->load(baseURL);

	/* initialize javascript interface */
	javascriptInterface* jsi = new javascriptInterface(webView->page()->mainFrame());
	QObject::connect(jsi, SIGNAL(quitFbgui()), this, SLOT(close()));

	QObject::connect(webView->page()->mainFrame(), SIGNAL(javaScriptWindowObjectCleared()),
						  jsi, SLOT(attachToDOM()));
	/* initialize download manager */
	downloadManager* dm = new downloadManager();
	QObject::connect(dm, SIGNAL(downloadInfo(QString, double)), jsi, SLOT(downloadInfo(QString, double)));
	QObject::connect(jsi, SIGNAL(requestFile(QString&)), dm, SLOT(downloadFile(QString&)));
	QObject::connect(dm, SIGNAL(updateProgress(int, double, QString)), jsi, SLOT(updateProgressBar(int, double, QString)));
	QObject::connect(dm, SIGNAL(downloadQueueEmpty()), jsi, SLOT(callbackOnDlQueueFinished()));

	setWindowTitle("fbgui");
	setAttribute(Qt::WA_QuitOnClose, true);
	setWindowFlags(Qt::FramelessWindowHint);
	resize(QSize(800, 600));
	setCentralWidget(webView);
	showFullScreen();
	show();
}
//-------------------------------------------------------------------------------------------
void fbgui::keyPressEvent(QKeyEvent *event){
	/* test */
	if (event->key() == Qt::Key_F4){
		if (!logView->isVisible()){
			logView->append(QString("check passed."));
			logView->raise();
			logView->setVisible(true);
		}
		else {
			logView->lower();
			logView->setVisible(false);
		}
	}
}
//-------------------------------------------------------------------------------------------
void fbgui::checkHost() const
{
	QHostInfo hostInfo = QHostInfo::fromName(baseURL.host());
	if (hostInfo.error() != QHostInfo::NoError){
		qDebug() << "Lookup of " << baseURL.host() << "failed. Exiting...";
		exit(EXIT_FAILURE);
	}
}