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Diffstat (limited to 'src/3rdparty/webkit/WebKit/qt/Api/qgraphicswebview.cpp')
| -rw-r--r-- | src/3rdparty/webkit/WebKit/qt/Api/qgraphicswebview.cpp | 822 |
1 files changed, 822 insertions, 0 deletions
diff --git a/src/3rdparty/webkit/WebKit/qt/Api/qgraphicswebview.cpp b/src/3rdparty/webkit/WebKit/qt/Api/qgraphicswebview.cpp new file mode 100644 index 0000000..d8d9d64 --- /dev/null +++ b/src/3rdparty/webkit/WebKit/qt/Api/qgraphicswebview.cpp @@ -0,0 +1,822 @@ +/* + Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies) + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public License + along with this library; see the file COPYING.LIB. If not, write to + the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + Boston, MA 02110-1301, USA. +*/ + +#include "config.h" +#include "qgraphicswebview.h" + +#include "qwebframe.h" +#include "qwebpage.h" +#include "qwebpage_p.h" +#include "QWebPageClient.h" +#include <QtGui/QGraphicsScene> +#include <QtGui/QGraphicsView> +#include <QtGui/qapplication.h> +#include <QtGui/qgraphicssceneevent.h> +#include <QtGui/qstyleoption.h> +#if defined(Q_WS_X11) +#include <QX11Info> +#endif + +class QGraphicsWebViewPrivate : public QWebPageClient { +public: + QGraphicsWebViewPrivate(QGraphicsWebView* parent) + : q(parent) + , page(0) + , interactive(true) + , progress(1.0) + {} + + virtual void scroll(int dx, int dy, const QRect&); + virtual void update(const QRect& dirtyRect); + + virtual QCursor cursor() const; + virtual void updateCursor(const QCursor& cursor); + + virtual int screenNumber() const; + virtual WId winId() const; + + void _q_doLoadProgress(int progress); + void _q_doLoadFinished(bool success); + void _q_setStatusBarMessage(const QString& message); + + QGraphicsWebView* q; + QWebPage* page; + + QString statusBarMessage; + bool interactive; + qreal progress; +}; + +void QGraphicsWebViewPrivate::_q_doLoadProgress(int progress) +{ + if (qFuzzyCompare(this->progress, qreal(progress / 100.))) + return; + + this->progress = progress / 100.; + + emit q->progressChanged(this->progress); +} + +void QGraphicsWebViewPrivate::_q_doLoadFinished(bool success) +{ + // If the page had no title, still make sure it gets the signal + if (q->title().isEmpty()) + emit q->urlChanged(q->url()); + + if (success) + emit q->loadFinished(); + else + emit q->loadFailed(); +} + +void QGraphicsWebViewPrivate::scroll(int dx, int dy, const QRect& rectToScroll) +{ + q->scroll(qreal(dx), qreal(dy), QRectF(rectToScroll)); +} + +void QGraphicsWebViewPrivate::update(const QRect & dirtyRect) +{ + q->update(QRectF(dirtyRect)); +} + +QCursor QGraphicsWebViewPrivate::cursor() const +{ + return q->cursor(); +} + +void QGraphicsWebViewPrivate::updateCursor(const QCursor& cursor) +{ + q->setCursor(cursor); +} + +int QGraphicsWebViewPrivate::screenNumber() const +{ +#if defined(Q_WS_X11) + const QList<QGraphicsView*> views = q->scene()->views(); + + if (!views.isEmpty()) + return views.at(0)->x11Info().screen(); +#endif + + return 0; +} + +WId QGraphicsWebViewPrivate::winId() const +{ + const QList<QGraphicsView*> views = q->scene()->views(); + + if (!views.isEmpty()) + return views.at(0)->winId(); + + return 0; +} + +void QGraphicsWebViewPrivate::_q_setStatusBarMessage(const QString& s) +{ + statusBarMessage = s; + emit q->statusChanged(); +} + +/*! + \class QGraphicsWebView + \brief The QGraphicsWebView class allows web content to be added to a GraphicsView. + \since 4.6 + + A WebGraphicsItem renders web content based on a URL or set data. + + If the width and height of the item is not set, they will + dynamically adjust to a size appropriate for the content. + This width may be large (eg. 980) for typical online web pages. +*/ + +/*! + Constructs an empty QGraphicsWebView with parent \a parent. + + \sa load() +*/ +QGraphicsWebView::QGraphicsWebView(QGraphicsItem* parent) + : QGraphicsWidget(parent) + , d(new QGraphicsWebViewPrivate(this)) +{ +#if QT_VERSION >= 0x040600 + setFlag(QGraphicsItem::ItemUsesExtendedStyleOption, true); +#endif + setAcceptHoverEvents(true); + setFocusPolicy(Qt::StrongFocus); +} + +/*! + Destroys the web graphicsitem. +*/ +QGraphicsWebView::~QGraphicsWebView() +{ + if (d->page) + d->page->d->view = 0; + + if (d->page && d->page->parent() == this) + delete d->page; + + delete d; +} + +/*! + Returns a pointer to the underlying web page. + + \sa setPage() +*/ +QWebPage* QGraphicsWebView::page() const +{ + if (!d->page) { + QGraphicsWebView* that = const_cast<QGraphicsWebView*>(this); + QWebPage* page = new QWebPage(that); + + // Default to not having a background, in the case + // the page doesn't provide one. + QPalette palette = QApplication::palette(); + palette.setBrush(QPalette::Base, QColor::fromRgbF(0, 0, 0, 0)); + page->setPalette(palette); + + that->setPage(page); + } + + return d->page; +} + +/*! \reimp +*/ +void QGraphicsWebView::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget*) +{ + page()->mainFrame()->render(painter, option->exposedRect.toRect()); +} + +/*! \reimp +*/ +bool QGraphicsWebView::sceneEvent(QEvent* event) +{ + // Re-implemented in order to allows fixing event-related bugs in patch releases. + return QGraphicsWidget::sceneEvent(event); +} + +/*! \reimp +*/ +bool QGraphicsWebView::event(QEvent* event) +{ + // Re-implemented in order to allows fixing event-related bugs in patch releases. + + if (d->page) { +#ifndef QT_NO_CURSOR +#if QT_VERSION >= 0x040400 + } else if (event->type() == QEvent::CursorChange) { + // An unsetCursor will set the cursor to Qt::ArrowCursor. + // Thus this cursor change might be a QWidget::unsetCursor() + // If this is not the case and it came from WebCore, the + // QWebPageClient already has set its cursor internally + // to Qt::ArrowCursor, so updating the cursor is always + // right, as it falls back to the last cursor set by + // WebCore. + // FIXME: Add a QEvent::CursorUnset or similar to Qt. + if (cursor().shape() == Qt::ArrowCursor) + d->resetCursor(); +#endif +#endif + } + return QGraphicsWidget::event(event); +} + +/*! + Makes \a page the new web page of the web graphicsitem. + + The parent QObject of the provided page remains the owner + of the object. If the current document is a child of the web + view, it will be deleted. + + \sa page() +*/ +void QGraphicsWebView::setPage(QWebPage* page) +{ + if (d->page == page) + return; + + if (d->page) { + d->page->d->client = 0; // unset the page client + if (d->page->parent() == this) + delete d->page; + else + d->page->disconnect(this); + } + + d->page = page; + if (!d->page) + return; + d->page->d->client = d; // set the page client + + QSize size = geometry().size().toSize(); + page->setViewportSize(size); + + QWebFrame* mainFrame = d->page->mainFrame(); + + connect(mainFrame, SIGNAL(titleChanged(const QString&)), + this, SIGNAL(titleChanged(const QString&))); + connect(mainFrame, SIGNAL(iconChanged()), + this, SIGNAL(iconChanged())); + connect(mainFrame, SIGNAL(urlChanged(const QUrl&)), + this, SIGNAL(urlChanged(const QUrl&))); + connect(d->page, SIGNAL(loadStarted()), + this, SIGNAL(loadStarted())); + connect(d->page, SIGNAL(loadProgress(int)), + this, SLOT(_q_doLoadProgress(int))); + connect(d->page, SIGNAL(loadFinished(bool)), + this, SLOT(_q_doLoadFinished(bool))); + connect(d->page, SIGNAL(statusBarMessage(const QString&)), + this, SLOT(_q_setStatusBarMessage(const QString&))); +} + +/*! + \property QGraphicsWebView::url + \brief the url of the web page currently viewed + + Setting this property clears the view and loads the URL. + + By default, this property contains an empty, invalid URL. + + \sa load(), urlChanged() +*/ + +void QGraphicsWebView::setUrl(const QUrl &url) +{ + page()->mainFrame()->setUrl(url); +} + +QUrl QGraphicsWebView::url() const +{ + if (d->page) + return d->page->mainFrame()->url(); + + return QUrl(); +} + +/*! + \property QGraphicsWebView::title + \brief the title of the web page currently viewed + + By default, this property contains an empty string. + + \sa titleChanged() +*/ +QString QGraphicsWebView::title() const +{ + if (d->page) + return d->page->mainFrame()->title(); + + return QString(); +} + +/*! + \property QGraphicsWebView::icon + \brief the icon associated with the web page currently viewed + + By default, this property contains a null icon. + + \sa iconChanged(), QWebSettings::iconForUrl() +*/ +QIcon QGraphicsWebView::icon() const +{ + if (d->page) + return d->page->mainFrame()->icon(); + + return QIcon(); +} + +/*! + \property QGraphicsWebView::zoomFactor + \since 4.5 + \brief the zoom factor for the view +*/ + +void QGraphicsWebView::setZoomFactor(qreal factor) +{ + if (factor == page()->mainFrame()->zoomFactor()) + return; + + page()->mainFrame()->setZoomFactor(factor); + emit zoomFactorChanged(); +} + +qreal QGraphicsWebView::zoomFactor() const +{ + return page()->mainFrame()->zoomFactor(); +} + +/*! \reimp +*/ +void QGraphicsWebView::updateGeometry() +{ + QGraphicsWidget::updateGeometry(); + + if (!d->page) + return; + + QSize size = geometry().size().toSize(); + d->page->setViewportSize(size); +} + +/*! \reimp +*/ +void QGraphicsWebView::setGeometry(const QRectF& rect) +{ + QGraphicsWidget::setGeometry(rect); + + if (!d->page) + return; + + // NOTE: call geometry() as setGeometry ensures that + // the geometry is within legal bounds (minimumSize, maximumSize) + QSize size = geometry().size().toSize(); + d->page->setViewportSize(size); +} + +/*! + \brief The load status message associated to the web graphicsitem + + Provides the latest status message set during the load of a URL. + Commonly shown by Status Bar widgets. + + \sa statusChanged() +*/ + +QString QGraphicsWebView::status() const +{ + return d->statusBarMessage; +} + +/*! + Convenience slot that stops loading the document. + + \sa reload(), loadFinished() +*/ +void QGraphicsWebView::stop() +{ + if (d->page) + d->page->triggerAction(QWebPage::Stop); +} + +/*! + Convenience slot that loads the previous document in the list of documents + built by navigating links. Does nothing if there is no previous document. + + \sa forward() +*/ +void QGraphicsWebView::back() +{ + if (d->page) + d->page->triggerAction(QWebPage::Back); +} + +/*! + Convenience slot that loads the next document in the list of documents + built by navigating links. Does nothing if there is no next document. + + \sa back() +*/ +void QGraphicsWebView::forward() +{ + if (d->page) + d->page->triggerAction(QWebPage::Forward); +} + +/*! + Reloads the current document. + + \sa stop(), loadStarted() +*/ +void QGraphicsWebView::reload() +{ + if (d->page) + d->page->triggerAction(QWebPage::Reload); +} + +/*! + \property QGraphicsWebView::progress + \brief the progress of loading the current URL, from 0 to 1. +*/ +qreal QGraphicsWebView::progress() const +{ + return d->progress; +} + +/*! + Loads the specified \a url and displays it. + + \note The view remains the same until enough data has arrived to display the new \a url. + + \sa setUrl(), url(), urlChanged() +*/ +void QGraphicsWebView::load(const QUrl& url) +{ + page()->mainFrame()->load(url); +} + +/*! + \fn void QGraphicsWebView::load(const QNetworkRequest &request, QNetworkAccessManager::Operation operation, const QByteArray &body) + + Loads a network request, \a request, using the method specified in \a operation. + + \a body is optional and is only used for POST operations. + + \note The view remains the same until enough data has arrived to display the new url. + + \sa url(), urlChanged() +*/ + +void QGraphicsWebView::load(const QNetworkRequest& request, + QNetworkAccessManager::Operation operation, + const QByteArray& body) +{ + page()->mainFrame()->load(request, operation, body); +} + +/*! + Sets the content of the web graphicsitem to the specified \a html. + + External objects such as stylesheets or images referenced in the HTML + document are located relative to \a baseUrl. + + The \a html is loaded immediately; external objects are loaded asynchronously. + + When using this method, WebKit assumes that external resources such as + JavaScript programs or style sheets are encoded in UTF-8 unless otherwise + specified. For example, the encoding of an external script can be specified + through the charset attribute of the HTML script tag. Alternatively, the + encoding can also be specified by the web server. + + \sa load(), setContent(), QWebFrame::toHtml() +*/ +void QGraphicsWebView::setHtml(const QString& html, const QUrl& baseUrl) +{ + page()->mainFrame()->setHtml(html, baseUrl); +} + +QString QGraphicsWebView::toHtml() const +{ + return page()->mainFrame()->toHtml(); +} + +/*! + Sets the content of the web graphicsitem to the specified content \a data. If the \a mimeType argument + is empty it is currently assumed that the content is HTML but in future versions we may introduce + auto-detection. + + External objects referenced in the content are located relative to \a baseUrl. + + The \a data is loaded immediately; external objects are loaded asynchronously. + + \sa load(), setHtml(), QWebFrame::toHtml() +*/ +void QGraphicsWebView::setContent(const QByteArray& data, const QString& mimeType, const QUrl& baseUrl) +{ + page()->mainFrame()->setContent(data, mimeType, baseUrl); +} + +/*! + Returns a pointer to the view's history of navigated web pages. + + It is equivalent to + + \snippet webkitsnippets/qtwebkit_qwebview_snippet.cpp 0 +*/ +QWebHistory* QGraphicsWebView::history() const +{ + return page()->history(); +} + +/*! + \property QGraphicsWebView::interactive + \brief controls whether the item responds to mouse and key events. +*/ + +bool QGraphicsWebView::isInteractive() const +{ + return d->interactive; +} + +void QGraphicsWebView::setInteractive(bool allowed) +{ + if (d->interactive == allowed) + return; + + d->interactive = allowed; + emit interactivityChanged(); +} + +/*! + Returns a pointer to the view/page specific settings object. + + It is equivalent to + + \snippet webkitsnippets/qtwebkit_qwebview_snippet.cpp 1 + + \sa QWebSettings::globalSettings() +*/ +QWebSettings* QGraphicsWebView::settings() const +{ + return page()->settings(); +} + +/*! \reimp +*/ +void QGraphicsWebView::hoverMoveEvent(QGraphicsSceneHoverEvent* ev) +{ + if (d->interactive && d->page) { + const bool accepted = ev->isAccepted(); + QMouseEvent me = QMouseEvent(QEvent::MouseMove, + ev->pos().toPoint(), Qt::NoButton, + Qt::NoButton, Qt::NoModifier); + d->page->setView(ev->widget()); + d->page->event(&me); + ev->setAccepted(accepted); + } + + if (!ev->isAccepted()) + QGraphicsItem::hoverMoveEvent(ev); +} + +/*! \reimp +*/ +void QGraphicsWebView::hoverLeaveEvent(QGraphicsSceneHoverEvent* ev) +{ + Q_UNUSED(ev); +} + +/*! \reimp +*/ +void QGraphicsWebView::mouseMoveEvent(QGraphicsSceneMouseEvent* ev) +{ + if (d->interactive && d->page) { + const bool accepted = ev->isAccepted(); + d->page->event(ev); + ev->setAccepted(accepted); + } + + if (!ev->isAccepted()) + QGraphicsItem::mouseMoveEvent(ev); +} + +/*! \reimp +*/ +void QGraphicsWebView::mousePressEvent(QGraphicsSceneMouseEvent* ev) +{ + if (d->interactive && d->page) { + const bool accepted = ev->isAccepted(); + d->page->event(ev); + ev->setAccepted(accepted); + } + + if (!ev->isAccepted()) + QGraphicsItem::mousePressEvent(ev); +} + +/*! \reimp +*/ +void QGraphicsWebView::mouseReleaseEvent(QGraphicsSceneMouseEvent* ev) +{ + if (d->interactive && d->page) { + const bool accepted = ev->isAccepted(); + d->page->event(ev); + ev->setAccepted(accepted); + } + + if (!ev->isAccepted()) + QGraphicsItem::mouseReleaseEvent(ev); +} + +/*! \reimp +*/ +void QGraphicsWebView::mouseDoubleClickEvent(QGraphicsSceneMouseEvent* ev) +{ + if (d->interactive && d->page) { + const bool accepted = ev->isAccepted(); + d->page->event(ev); + ev->setAccepted(accepted); + } + + if (!ev->isAccepted()) + QGraphicsItem::mouseDoubleClickEvent(ev); +} + +/*! \reimp +*/ +void QGraphicsWebView::keyPressEvent(QKeyEvent* ev) +{ + if (d->interactive && d->page) + d->page->event(ev); + + if (!ev->isAccepted()) + QGraphicsItem::keyPressEvent(ev); +} + +/*! \reimp +*/ +void QGraphicsWebView::keyReleaseEvent(QKeyEvent* ev) +{ + if (d->interactive && d->page) + d->page->event(ev); + + if (!ev->isAccepted()) + QGraphicsItem::keyReleaseEvent(ev); +} + +/*! \reimp +*/ +void QGraphicsWebView::focusInEvent(QFocusEvent* ev) +{ + if (d->page) + d->page->event(ev); + else + QGraphicsItem::focusInEvent(ev); +} + +/*! \reimp +*/ +void QGraphicsWebView::focusOutEvent(QFocusEvent* ev) +{ + if (d->page) + d->page->event(ev); + else + QGraphicsItem::focusOutEvent(ev); +} + +/*! \reimp +*/ +bool QGraphicsWebView::focusNextPrevChild(bool next) +{ + if (d->page) + return d->page->focusNextPrevChild(next); + + return QGraphicsWidget::focusNextPrevChild(next); +} + +/*! \reimp +*/ +void QGraphicsWebView::dragEnterEvent(QGraphicsSceneDragDropEvent* ev) +{ +#ifndef QT_NO_DRAGANDDROP + //if (d->page) + // d->page->event(ev); + //Just remove this line below when the code above is working + Q_UNUSED(ev); +#else + Q_UNUSED(ev); +#endif +} + +/*! \reimp +*/ +void QGraphicsWebView::dragLeaveEvent(QGraphicsSceneDragDropEvent* ev) +{ +#ifndef QT_NO_DRAGANDDROP + if (d->interactive && d->page) { + const bool accepted = ev->isAccepted(); + d->page->event(ev); + ev->setAccepted(accepted); + } + + if (!ev->isAccepted()) + QGraphicsWidget::dragLeaveEvent(ev); +#else + Q_UNUSED(ev); +#endif +} + +/*! \reimp +*/ +void QGraphicsWebView::dragMoveEvent(QGraphicsSceneDragDropEvent* ev) +{ +#ifndef QT_NO_DRAGANDDROP + if (d->interactive && d->page) { + const bool accepted = ev->isAccepted(); + d->page->event(ev); + ev->setAccepted(accepted); + } + + if (!ev->isAccepted()) + QGraphicsWidget::dragMoveEvent(ev); +#else + Q_UNUSED(ev); +#endif +} + +/*! \reimp +*/ +void QGraphicsWebView::dropEvent(QGraphicsSceneDragDropEvent* ev) +{ +#ifndef QT_NO_DRAGANDDROP + if (d->interactive && d->page) { + const bool accepted = ev->isAccepted(); + d->page->event(ev); + ev->setAccepted(accepted); + } + + if (!ev->isAccepted()) + QGraphicsWidget::dropEvent(ev); +#else + Q_UNUSED(ev); +#endif +} + +#ifndef QT_NO_CONTEXTMENU +/*! \reimp +*/ +void QGraphicsWebView::contextMenuEvent(QGraphicsSceneContextMenuEvent* ev) +{ + if (d->page) { + const bool accepted = ev->isAccepted(); + d->page->event(ev); + ev->setAccepted(accepted); + } +} +#endif // QT_NO_CONTEXTMENU + +#ifndef QT_NO_WHEELEVENT +/*! \reimp +*/ +void QGraphicsWebView::wheelEvent(QGraphicsSceneWheelEvent* ev) +{ + if (d->interactive && d->page) { + const bool accepted = ev->isAccepted(); + d->page->event(ev); + ev->setAccepted(accepted); + } + + if (!ev->isAccepted()) + QGraphicsItem::wheelEvent(ev); +} +#endif // QT_NO_WHEELEVENT + +/*! \reimp +*/ +void QGraphicsWebView::inputMethodEvent(QInputMethodEvent* ev) +{ + if (d->interactive && d->page) + d->page->event(ev); + + if (!ev->isAccepted()) + QGraphicsItem::inputMethodEvent(ev); +} + +#include "moc_qgraphicswebview.cpp" |