/****************************************************************************+
−
**+
−
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).+
−
** All rights reserved.+
−
** Contact: Nokia Corporation (qt-info@nokia.com)+
−
**+
−
** This file is part of the demonstration applications of the Qt Toolkit.+
−
**+
−
** $QT_BEGIN_LICENSE:LGPL$+
−
** No Commercial Usage+
−
** This file contains pre-release code and may not be distributed.+
−
** You may use this file in accordance with the terms and conditions+
−
** contained in the Technology Preview License Agreement accompanying+
−
** this package.+
−
**+
−
** GNU Lesser General Public License Usage+
−
** Alternatively, this file may be used under the terms of the GNU Lesser+
−
** General Public License version 2.1 as published by the Free Software+
−
** Foundation and appearing in the file LICENSE.LGPL included in the+
−
** packaging of this file.  Please review the following information to+
−
** ensure the GNU Lesser General Public License version 2.1 requirements+
−
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
−
**+
−
** In addition, as a special exception, Nokia gives you certain additional+
−
** rights.  These rights are described in the Nokia Qt LGPL Exception+
−
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
−
**+
−
** If you have questions regarding the use of this file, please contact+
−
** Nokia at qt-info@nokia.com.+
−
**+
−
**+
−
**+
−
**+
−
**+
−
**+
−
**+
−
**+
−
** $QT_END_LICENSE$+
−
**+
−
****************************************************************************/+
−
+
−
#include "browserapplication.h"+
−
#include "browsermainwindow.h"+
−
#include "cookiejar.h"+
−
#include "downloadmanager.h"+
−
#include "networkaccessmanager.h"+
−
#include "tabwidget.h"+
−
#include "webview.h"+
−
+
−
#include <QtGui/QClipboard>+
−
#include <QtGui/QMenu>+
−
#include <QtGui/QMessageBox>+
−
#include <QtGui/QMouseEvent>+
−
+
−
#include <QtWebKit/QWebHitTestResult>+
−
+
−
#ifndef QT_NO_UITOOLS+
−
#include <QtUiTools/QUiLoader>+
−
#endif  //QT_NO_UITOOLS+
−
+
−
#include <QtCore/QDebug>+
−
#include <QtCore/QBuffer>+
−
+
−
WebPage::WebPage(QObject *parent)+
−
    : QWebPage(parent)+
−
    , m_keyboardModifiers(Qt::NoModifier)+
−
    , m_pressedButtons(Qt::NoButton)+
−
    , m_openInNewTab(false)+
−
{+
−
    setNetworkAccessManager(BrowserApplication::networkAccessManager());+
−
    connect(this, SIGNAL(unsupportedContent(QNetworkReply*)),+
−
            this, SLOT(handleUnsupportedContent(QNetworkReply*)));+
−
}+
−
+
−
BrowserMainWindow *WebPage::mainWindow()+
−
{+
−
    QObject *w = this->parent();+
−
    while (w) {+
−
        if (BrowserMainWindow *mw = qobject_cast<BrowserMainWindow*>(w))+
−
            return mw;+
−
        w = w->parent();+
−
    }+
−
    return BrowserApplication::instance()->mainWindow();+
−
}+
−
+
−
bool WebPage::acceptNavigationRequest(QWebFrame *frame, const QNetworkRequest &request, NavigationType type)+
−
{+
−
    // ctrl open in new tab+
−
    // ctrl-shift open in new tab and select+
−
    // ctrl-alt open in new window+
−
    if (type == QWebPage::NavigationTypeLinkClicked+
−
        && (m_keyboardModifiers & Qt::ControlModifier+
−
            || m_pressedButtons == Qt::MidButton)) {+
−
        bool newWindow = (m_keyboardModifiers & Qt::AltModifier);+
−
        WebView *webView;+
−
        if (newWindow) {+
−
            BrowserApplication::instance()->newMainWindow();+
−
            BrowserMainWindow *newMainWindow = BrowserApplication::instance()->mainWindow();+
−
            webView = newMainWindow->currentTab();+
−
            newMainWindow->raise();+
−
            newMainWindow->activateWindow();+
−
            webView->setFocus();+
−
        } else {+
−
            bool selectNewTab = (m_keyboardModifiers & Qt::ShiftModifier);+
−
            webView = mainWindow()->tabWidget()->newTab(selectNewTab);+
−
        }+
−
        webView->load(request);+
−
        m_keyboardModifiers = Qt::NoModifier;+
−
        m_pressedButtons = Qt::NoButton;+
−
        return false;+
−
    }+
−
    if (frame == mainFrame()) {+
−
        m_loadingUrl = request.url();+
−
        emit loadingUrl(m_loadingUrl);+
−
    }+
−
    return QWebPage::acceptNavigationRequest(frame, request, type);+
−
}+
−
+
−
QWebPage *WebPage::createWindow(QWebPage::WebWindowType type)+
−
{+
−
    Q_UNUSED(type);+
−
    if (m_keyboardModifiers & Qt::ControlModifier || m_pressedButtons == Qt::MidButton)+
−
        m_openInNewTab = true;+
−
    if (m_openInNewTab) {+
−
        m_openInNewTab = false;+
−
        return mainWindow()->tabWidget()->newTab()->page();+
−
    }+
−
    BrowserApplication::instance()->newMainWindow();+
−
    BrowserMainWindow *mainWindow = BrowserApplication::instance()->mainWindow();+
−
    return mainWindow->currentTab()->page();+
−
}+
−
+
−
#if !defined(QT_NO_UITOOLS)+
−
QObject *WebPage::createPlugin(const QString &classId, const QUrl &url, const QStringList &paramNames, const QStringList &paramValues)+
−
{+
−
    Q_UNUSED(url);+
−
    Q_UNUSED(paramNames);+
−
    Q_UNUSED(paramValues);+
−
    QUiLoader loader;+
−
    return loader.createWidget(classId, view());+
−
}+
−
#endif // !defined(QT_NO_UITOOLS)+
−
+
−
void WebPage::handleUnsupportedContent(QNetworkReply *reply)+
−
{+
−
    if (reply->error() == QNetworkReply::NoError) {+
−
        BrowserApplication::downloadManager()->handleUnsupportedContent(reply);+
−
        return;+
−
    }+
−
+
−
    QFile file(QLatin1String(":/notfound.html"));+
−
    bool isOpened = file.open(QIODevice::ReadOnly);+
−
    Q_ASSERT(isOpened);+
−
    Q_UNUSED(isOpened)+
−
+
−
    QString title = tr("Error loading page: %1").arg(reply->url().toString());+
−
    QString html = QString(QLatin1String(file.readAll()))+
−
                        .arg(title)+
−
                        .arg(reply->errorString())+
−
                        .arg(reply->url().toString());+
−
+
−
    QBuffer imageBuffer;+
−
    imageBuffer.open(QBuffer::ReadWrite);+
−
    QIcon icon = view()->style()->standardIcon(QStyle::SP_MessageBoxWarning, 0, view());+
−
    QPixmap pixmap = icon.pixmap(QSize(32,32));+
−
    if (pixmap.save(&imageBuffer, "PNG")) {+
−
        html.replace(QLatin1String("IMAGE_BINARY_DATA_HERE"),+
−
                     QString(QLatin1String(imageBuffer.buffer().toBase64())));+
−
    }+
−
+
−
    QList<QWebFrame*> frames;+
−
    frames.append(mainFrame());+
−
    while (!frames.isEmpty()) {+
−
        QWebFrame *frame = frames.takeFirst();+
−
        if (frame->url() == reply->url()) {+
−
            frame->setHtml(html, reply->url());+
−
            return;+
−
        }+
−
        QList<QWebFrame *> children = frame->childFrames();+
−
        foreach(QWebFrame *frame, children)+
−
            frames.append(frame);+
−
    }+
−
    if (m_loadingUrl == reply->url()) {+
−
        mainFrame()->setHtml(html, reply->url());+
−
    }+
−
}+
−
+
−
+
−
WebView::WebView(QWidget* parent)+
−
    : QWebView(parent)+
−
    , m_progress(0)+
−
    , m_page(new WebPage(this))+
−
{+
−
    setPage(m_page);+
−
    connect(page(), SIGNAL(statusBarMessage(QString)),+
−
            SLOT(setStatusBarText(QString)));+
−
    connect(this, SIGNAL(loadProgress(int)),+
−
            this, SLOT(setProgress(int)));+
−
    connect(this, SIGNAL(loadFinished(bool)),+
−
            this, SLOT(loadFinished()));+
−
    connect(page(), SIGNAL(loadingUrl(QUrl)),+
−
            this, SIGNAL(urlChanged(QUrl)));+
−
    connect(page(), SIGNAL(downloadRequested(QNetworkRequest)),+
−
            this, SLOT(downloadRequested(QNetworkRequest)));+
−
    page()->setForwardUnsupportedContent(true);+
−
+
−
}+
−
+
−
void WebView::contextMenuEvent(QContextMenuEvent *event)+
−
{+
−
    QWebHitTestResult r = page()->mainFrame()->hitTestContent(event->pos());+
−
    if (!r.linkUrl().isEmpty()) {+
−
        QMenu menu(this);+
−
        menu.addAction(pageAction(QWebPage::OpenLinkInNewWindow));+
−
        menu.addAction(tr("Open in New Tab"), this, SLOT(openLinkInNewTab()));+
−
        menu.addSeparator();+
−
        menu.addAction(pageAction(QWebPage::DownloadLinkToDisk));+
−
        // Add link to bookmarks...+
−
        menu.addSeparator();+
−
        menu.addAction(pageAction(QWebPage::CopyLinkToClipboard));+
−
        if (page()->settings()->testAttribute(QWebSettings::DeveloperExtrasEnabled))+
−
            menu.addAction(pageAction(QWebPage::InspectElement));+
−
        menu.exec(mapToGlobal(event->pos()));+
−
        return;+
−
    }+
−
    QWebView::contextMenuEvent(event);+
−
}+
−
+
−
void WebView::wheelEvent(QWheelEvent *event)+
−
{+
−
    if (QApplication::keyboardModifiers() & Qt::ControlModifier) {+
−
        int numDegrees = event->delta() / 8;+
−
        int numSteps = numDegrees / 15;+
−
        setTextSizeMultiplier(textSizeMultiplier() + numSteps * 0.1);+
−
        event->accept();+
−
        return;+
−
    }+
−
    QWebView::wheelEvent(event);+
−
}+
−
+
−
void WebView::openLinkInNewTab()+
−
{+
−
    m_page->m_openInNewTab = true;+
−
    pageAction(QWebPage::OpenLinkInNewWindow)->trigger();+
−
}+
−
+
−
void WebView::setProgress(int progress)+
−
{+
−
    m_progress = progress;+
−
}+
−
+
−
void WebView::loadFinished()+
−
{+
−
    if (100 != m_progress) {+
−
        qWarning() << "Recieved finished signal while progress is still:" << progress()+
−
                   << "Url:" << url();+
−
    }+
−
    m_progress = 0;+
−
}+
−
+
−
void WebView::loadUrl(const QUrl &url)+
−
{+
−
    m_initialUrl = url;+
−
    load(url);+
−
}+
−
+
−
QString WebView::lastStatusBarText() const+
−
{+
−
    return m_statusBarText;+
−
}+
−
+
−
QUrl WebView::url() const+
−
{+
−
    QUrl url = QWebView::url();+
−
    if (!url.isEmpty())+
−
        return url;+
−
+
−
    return m_initialUrl;+
−
}+
−
+
−
void WebView::mousePressEvent(QMouseEvent *event)+
−
{+
−
    m_page->m_pressedButtons = event->buttons();+
−
    m_page->m_keyboardModifiers = event->modifiers();+
−
    QWebView::mousePressEvent(event);+
−
}+
−
+
−
void WebView::mouseReleaseEvent(QMouseEvent *event)+
−
{+
−
    QWebView::mouseReleaseEvent(event);+
−
    if (!event->isAccepted() && (m_page->m_pressedButtons & Qt::MidButton)) {+
−
        QUrl url(QApplication::clipboard()->text(QClipboard::Selection));+
−
        if (!url.isEmpty() && url.isValid() && !url.scheme().isEmpty()) {+
−
            setUrl(url);+
−
        }+
−
    }+
−
}+
−
+
−
void WebView::setStatusBarText(const QString &string)+
−
{+
−
    m_statusBarText = string;+
−
}+
−
+
−
void WebView::downloadRequested(const QNetworkRequest &request)+
−
{+
−
    BrowserApplication::downloadManager()->download(request);+
−
}+
−
+
−