OpenBoard/src/web/browser/WBWebView.h

/*
 * Copyright (C) 2015-2018 Département de l'Instruction Publique (DIP-SEM)
 *
 * Copyright (C) 2013 Open Education Foundation
 *
 * Copyright (C) 2010-2013 Groupement d'Intérêt Public pour
 * l'Education Numérique en Afrique (GIP ENA)
 *
 * This file is part of OpenBoard.
 *
 * OpenBoard is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, version 3 of the License,
 * with a specific linking exception for the OpenSSL project's
 * "OpenSSL" library (or with modified versions of it that use the
 * same license as the "OpenSSL" library).
 *
 * OpenBoard is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with OpenBoard. If not, see <http://www.gnu.org/licenses/>.
 */




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#ifndef WBWEBVIEW_H
#define WBWEBVIEW_H

#include <QtGui>

#include "WBWebTrapWebView.h"
#include "web/UBWebPage.h"

class WBBrowserWindow;

class WBWebPage : public UBWebPage
{
    Q_OBJECT;

    signals:
        void loadingUrl(const QUrl &url);

    public:
        WBWebPage(QObject *parent = 0);
        WBBrowserWindow *mainWindow();

    protected:
        bool acceptNavigationRequest(QWebFrame *frame, const QNetworkRequest &request, NavigationType type);
        QWebPage *createWindow(QWebPage::WebWindowType type);
        QObject *createPlugin(const QString &classId, const QUrl &url, const QStringList &paramNames, const QStringList &paramValues);

        bool supportsExtension(Extension extension) const {
            if (extension == QWebPage::ErrorPageExtension)
            {
                return true;
            }
            return false;
        }

        bool extension(Extension extension, const ExtensionOption *option = 0, ExtensionReturn *output = 0)
        {
            if (extension != QWebPage::ErrorPageExtension)
                return false;

            ErrorPageExtensionOption *errorOption = (ErrorPageExtensionOption*) option;
            qDebug() << "Error loading " << qPrintable(errorOption->url.toString());
            if(errorOption->domain == QWebPage::QtNetwork)
                qDebug() << "Network error (" << errorOption->error << "): ";
            else if(errorOption->domain == QWebPage::Http)
                qDebug() << "HTTP error (" << errorOption->error << "): ";
            else if(errorOption->domain == QWebPage::WebKit)
                qDebug() << "WebKit error (" << errorOption->error << "): ";

            qDebug() << qPrintable(errorOption->errorString);

            return false;
        }

    private slots:
        void handleUnsupportedContent(QNetworkReply *reply);

    private:
        friend class WBWebView;

        // set the webview mousepressedevent
        Qt::KeyboardModifiers mKeyboardModifiers;
        Qt::MouseButtons mPressedButtons;
        bool mOpenInNewTab;
        QUrl mLoadingUrl;
};

class WBWebView : public WBWebTrapWebView
{
    Q_OBJECT

    public:
        WBWebView(QWidget *parent = 0);
        WBWebPage *webPage() const { return mPage; }

        void load(const QUrl &url);
        void load ( const QNetworkRequest & request, QNetworkAccessManager::Operation operation = QNetworkAccessManager::GetOperation
                , const QByteArray & body = QByteArray());
        QUrl url() const;

        QString lastStatusBarText() const;
        inline int progress() const { return mProgress; }

    protected:
        void mousePressEvent(QMouseEvent *event);
        void mouseReleaseEvent(QMouseEvent *event);
        void contextMenuEvent(QContextMenuEvent *event);
        void wheelEvent(QWheelEvent *event);

    private slots:
        void setProgress(int progress);
        void loadFinished(bool ok);
        void loadStarted();

        void setStatusBarText(const QString &string);

        void downloadRequested(const QNetworkRequest &request);
        void openLinkInNewTab();

    private:
        QString mLastStatusBarText;
        QUrl mInitialUrl;
        int mProgress;
        WBWebPage *mPage;
        QTime mLoadStartTime;
};

#endif //WBWEBVIEW_H