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Diffstat (limited to 'examples/gestures/browser/webview.cpp')
| -rw-r--r-- | examples/gestures/browser/webview.cpp | 363 |
1 files changed, 0 insertions, 363 deletions
diff --git a/examples/gestures/browser/webview.cpp b/examples/gestures/browser/webview.cpp deleted file mode 100644 index e50872f..0000000 --- a/examples/gestures/browser/webview.cpp +++ /dev/null @@ -1,363 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). -** Contact: Nokia Corporation (qt-info@nokia.com) -** -** This file is part of the examples 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 either Technology Preview License Agreement or the -** Beta Release License Agreement. -** -** 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 1.0, included in the file LGPL_EXCEPTION.txt in this -** package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 3.0 as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU General Public License version 3.0 requirements will be -** met: http://www.gnu.org/copyleft/gpl.html. -** -** If you are unsure which license is appropriate for your use, please -** contact the sales department at http://www.qtsoftware.com/contact. -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#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/QGesture> -#include <QtGui/QMenu> -#include <QtGui/QMessageBox> -#include <QtGui/QMouseEvent> - -#include <QtWebKit/QWebHitTestResult> - -#include <QtUiTools/QUiLoader> - -#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 ¶mNames, const QStringList ¶mValues) -{ - 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); - 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)) - , m_currentPanFrame(0) -{ - grabGesture(Qt::PanGesture); - setPage(m_page); - connect(page(), SIGNAL(statusBarMessage(const QString&)), - SLOT(setStatusBarText(const QString&))); - connect(this, SIGNAL(loadProgress(int)), - this, SLOT(setProgress(int))); - connect(this, SIGNAL(loadFinished(bool)), - this, SLOT(loadFinished())); - connect(page(), SIGNAL(loadingUrl(const QUrl&)), - this, SIGNAL(urlChanged(const QUrl &))); - connect(page(), SIGNAL(downloadRequested(const QNetworkRequest &)), - this, SLOT(downloadRequested(const 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); -} - -bool WebView::event(QEvent *event) -{ - if (event->type() == QEvent::Gesture) - { - gestureEvent(static_cast<QGestureEvent*>(event)); - return true; - } - return QWebView::event(event); -} - -void WebView::gestureEvent(QGestureEvent *event) -{ - if (const QGesture *g = event->gesture(Qt::PanGesture)) { - if (g->state() == Qt::GestureUpdated) { - if (m_currentPanFrame) { - m_panSpeed = g->pos() - g->lastPos(); - m_currentPanFrame->scroll(-m_panSpeed.x(), -m_panSpeed.y()); - } - } else if (g->state() == Qt::GestureStarted) { - startTimer(20); - m_currentPanFrame = 0; - if (QWebFrame *frame = page()->mainFrame()) { - QWebHitTestResult result = frame->hitTestContent(g->startPos()); - if (!result.isNull()) - m_currentPanFrame = result.frame(); - while (m_currentPanFrame && - m_currentPanFrame->scrollBarMinimum(Qt::Vertical) == 0 && - m_currentPanFrame->scrollBarMaximum(Qt::Vertical) == 0 && - m_currentPanFrame->scrollBarMinimum(Qt::Horizontal) == 0 && - m_currentPanFrame->scrollBarMaximum(Qt::Horizontal) == 0) { - m_currentPanFrame = m_currentPanFrame->parentFrame(); - } - } - } else { - } - event->accept(); - } -} - -static QPoint deaccelerate(const QPoint &speed, int a = 1, int max = 64) -{ - int x = qBound(-max, speed.x(), max); - int y = qBound(-max, speed.y(), max); - x = (x == 0) ? x : (x > 0) ? qMax(0, x - a) : qMin(0, x + a); - y = (y == 0) ? y : (y > 0) ? qMax(0, y - a) : qMin(0, y + a); - return QPoint(x, y); -} - -void WebView::timerEvent(QTimerEvent *event) -{ - m_panSpeed = deaccelerate(m_panSpeed); - if (m_panSpeed.isNull()) - killTimer(event->timerId()); - if (m_currentPanFrame) - m_currentPanFrame->scroll(-m_panSpeed.x(), -m_panSpeed.y()); -} |