Alessandro Bonazzi
8c43d5cf2f
Files correlati : cg0.exe cg0700a.msk cg0700b.msk cg3.exe cg4.exe Bug : Commento: Merge 1.0 libraries
317 lines
10 KiB
C++
317 lines
10 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Contact: http://www.qt.io/licensing/
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**
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** This file is part of the demonstration applications of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see http://www.qt.io/terms-conditions. For further
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** information use the contact form at http://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** As a special exception, The Qt Company gives you certain additional
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** rights. These rights are described in The Qt Company LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "browserapplication.h"
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#include "browsermainwindow.h"
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#include "cookiejar.h"
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#include "downloadmanager.h"
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#include "networkaccessmanager.h"
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#include "tabwidget.h"
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#include "webview.h"
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#include <QtGui/QClipboard>
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#include <QtGui/QMenu>
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#include <QtGui/QMessageBox>
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#include <QtGui/QMouseEvent>
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#include <QtWebKit/QWebHitTestResult>
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#ifndef QT_NO_UITOOLS
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#include <QtUiTools/QUiLoader>
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#endif //QT_NO_UITOOLS
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#include <QtCore/QDebug>
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#include <QtCore/QBuffer>
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WebPage::WebPage(QObject *parent)
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: QWebPage(parent)
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, m_keyboardModifiers(Qt::NoModifier)
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, m_pressedButtons(Qt::NoButton)
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, m_openInNewTab(false)
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{
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setNetworkAccessManager(BrowserApplication::networkAccessManager());
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connect(this, SIGNAL(unsupportedContent(QNetworkReply*)),
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this, SLOT(handleUnsupportedContent(QNetworkReply*)));
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}
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BrowserMainWindow *WebPage::mainWindow()
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{
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QObject *w = this->parent();
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while (w) {
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if (BrowserMainWindow *mw = qobject_cast<BrowserMainWindow*>(w))
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return mw;
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w = w->parent();
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}
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return BrowserApplication::instance()->mainWindow();
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}
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bool WebPage::acceptNavigationRequest(QWebFrame *frame, const QNetworkRequest &request, NavigationType type)
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{
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// ctrl open in new tab
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// ctrl-shift open in new tab and select
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// ctrl-alt open in new window
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if (type == QWebPage::NavigationTypeLinkClicked
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&& (m_keyboardModifiers & Qt::ControlModifier
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|| m_pressedButtons == Qt::MidButton)) {
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bool newWindow = (m_keyboardModifiers & Qt::AltModifier);
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WebView *webView;
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if (newWindow) {
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BrowserApplication::instance()->newMainWindow();
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BrowserMainWindow *newMainWindow = BrowserApplication::instance()->mainWindow();
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webView = newMainWindow->currentTab();
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newMainWindow->raise();
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newMainWindow->activateWindow();
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webView->setFocus();
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} else {
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bool selectNewTab = (m_keyboardModifiers & Qt::ShiftModifier);
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webView = mainWindow()->tabWidget()->newTab(selectNewTab);
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}
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webView->load(request);
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m_keyboardModifiers = Qt::NoModifier;
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m_pressedButtons = Qt::NoButton;
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return false;
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}
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if (frame == mainFrame()) {
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m_loadingUrl = request.url();
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emit loadingUrl(m_loadingUrl);
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}
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return QWebPage::acceptNavigationRequest(frame, request, type);
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}
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QWebPage *WebPage::createWindow(QWebPage::WebWindowType type)
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{
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Q_UNUSED(type);
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if (m_keyboardModifiers & Qt::ControlModifier || m_pressedButtons == Qt::MidButton)
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m_openInNewTab = true;
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if (m_openInNewTab) {
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m_openInNewTab = false;
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return mainWindow()->tabWidget()->newTab()->page();
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}
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BrowserApplication::instance()->newMainWindow();
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BrowserMainWindow *mainWindow = BrowserApplication::instance()->mainWindow();
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return mainWindow->currentTab()->page();
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}
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#if !defined(QT_NO_UITOOLS)
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QObject *WebPage::createPlugin(const QString &classId, const QUrl &url, const QStringList ¶mNames, const QStringList ¶mValues)
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{
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Q_UNUSED(url);
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Q_UNUSED(paramNames);
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Q_UNUSED(paramValues);
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QUiLoader loader;
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return loader.createWidget(classId, view());
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}
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#endif // !defined(QT_NO_UITOOLS)
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void WebPage::handleUnsupportedContent(QNetworkReply *reply)
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{
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QString errorString = reply->errorString();
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if (m_loadingUrl != reply->url()) {
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// sub resource of this page
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qWarning() << "Resource" << reply->url().toEncoded() << "has unknown Content-Type, will be ignored.";
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reply->deleteLater();
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return;
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}
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if (reply->error() == QNetworkReply::NoError && !reply->header(QNetworkRequest::ContentTypeHeader).isValid()) {
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errorString = "Unknown Content-Type";
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}
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QFile file(QLatin1String(":/notfound.html"));
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bool isOpened = file.open(QIODevice::ReadOnly);
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Q_ASSERT(isOpened);
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Q_UNUSED(isOpened)
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QString title = tr("Error loading page: %1").arg(reply->url().toString());
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QString html = QString(QLatin1String(file.readAll()))
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.arg(title)
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.arg(errorString)
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.arg(reply->url().toString());
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QBuffer imageBuffer;
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imageBuffer.open(QBuffer::ReadWrite);
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QIcon icon = view()->style()->standardIcon(QStyle::SP_MessageBoxWarning, 0, view());
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QPixmap pixmap = icon.pixmap(QSize(32,32));
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if (pixmap.save(&imageBuffer, "PNG")) {
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html.replace(QLatin1String("IMAGE_BINARY_DATA_HERE"),
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QString(QLatin1String(imageBuffer.buffer().toBase64())));
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}
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QList<QWebFrame*> frames;
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frames.append(mainFrame());
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while (!frames.isEmpty()) {
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QWebFrame *frame = frames.takeFirst();
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if (frame->url() == reply->url()) {
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frame->setHtml(html, reply->url());
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return;
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}
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QList<QWebFrame *> children = frame->childFrames();
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foreach(QWebFrame *frame, children)
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frames.append(frame);
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}
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if (m_loadingUrl == reply->url()) {
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mainFrame()->setHtml(html, reply->url());
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}
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}
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WebView::WebView(QWidget* parent)
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: QWebView(parent)
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, m_progress(0)
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, m_page(new WebPage(this))
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{
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setPage(m_page);
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connect(page(), SIGNAL(statusBarMessage(QString)),
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SLOT(setStatusBarText(QString)));
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connect(this, SIGNAL(loadProgress(int)),
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this, SLOT(setProgress(int)));
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connect(this, SIGNAL(loadFinished(bool)),
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this, SLOT(loadFinished()));
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connect(page(), SIGNAL(loadingUrl(QUrl)),
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this, SIGNAL(urlChanged(QUrl)));
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connect(page(), SIGNAL(downloadRequested(QNetworkRequest)),
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this, SLOT(downloadRequested(QNetworkRequest)));
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page()->setForwardUnsupportedContent(true);
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}
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void WebView::contextMenuEvent(QContextMenuEvent *event)
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{
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QWebHitTestResult r = page()->mainFrame()->hitTestContent(event->pos());
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if (!r.linkUrl().isEmpty()) {
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QMenu menu(this);
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menu.addAction(pageAction(QWebPage::OpenLinkInNewWindow));
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menu.addAction(tr("Open in New Tab"), this, SLOT(openLinkInNewTab()));
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menu.addSeparator();
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menu.addAction(pageAction(QWebPage::DownloadLinkToDisk));
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// Add link to bookmarks...
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menu.addSeparator();
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menu.addAction(pageAction(QWebPage::CopyLinkToClipboard));
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if (page()->settings()->testAttribute(QWebSettings::DeveloperExtrasEnabled))
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menu.addAction(pageAction(QWebPage::InspectElement));
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menu.exec(mapToGlobal(event->pos()));
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return;
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}
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QWebView::contextMenuEvent(event);
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}
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void WebView::wheelEvent(QWheelEvent *event)
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{
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if (QApplication::keyboardModifiers() & Qt::ControlModifier) {
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int numDegrees = event->delta() / 8;
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int numSteps = numDegrees / 15;
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setTextSizeMultiplier(textSizeMultiplier() + numSteps * 0.1);
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event->accept();
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return;
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}
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QWebView::wheelEvent(event);
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}
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void WebView::openLinkInNewTab()
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{
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m_page->m_openInNewTab = true;
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pageAction(QWebPage::OpenLinkInNewWindow)->trigger();
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}
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void WebView::setProgress(int progress)
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{
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m_progress = progress;
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}
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void WebView::loadFinished()
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{
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if (100 != m_progress) {
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qWarning() << "Received finished signal while progress is still:" << progress()
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<< "Url:" << url();
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}
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m_progress = 0;
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}
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void WebView::loadUrl(const QUrl &url)
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{
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m_initialUrl = url;
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load(url);
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}
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QString WebView::lastStatusBarText() const
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{
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return m_statusBarText;
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}
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QUrl WebView::url() const
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{
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QUrl url = QWebView::url();
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if (!url.isEmpty())
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return url;
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return m_initialUrl;
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}
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void WebView::mousePressEvent(QMouseEvent *event)
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{
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m_page->m_pressedButtons = event->buttons();
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m_page->m_keyboardModifiers = event->modifiers();
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QWebView::mousePressEvent(event);
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}
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void WebView::mouseReleaseEvent(QMouseEvent *event)
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{
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QWebView::mouseReleaseEvent(event);
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if (!event->isAccepted() && (m_page->m_pressedButtons & Qt::MidButton)) {
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QUrl url(QApplication::clipboard()->text(QClipboard::Selection));
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if (!url.isEmpty() && url.isValid() && !url.scheme().isEmpty()) {
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setUrl(url);
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}
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}
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}
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void WebView::setStatusBarText(const QString &string)
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{
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m_statusBarText = string;
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}
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void WebView::downloadRequested(const QNetworkRequest &request)
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{
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BrowserApplication::downloadManager()->download(request);
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}
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