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Diffstat (limited to 'src/declarative/fx/qmlgraphicswebview.cpp')
| -rw-r--r-- | src/declarative/fx/qmlgraphicswebview.cpp | 1388 |
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diff --git a/src/declarative/fx/qmlgraphicswebview.cpp b/src/declarative/fx/qmlgraphicswebview.cpp new file mode 100644 index 0000000..d9044cf --- /dev/null +++ b/src/declarative/fx/qmlgraphicswebview.cpp @@ -0,0 +1,1388 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the QtDeclarative module 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 qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QDebug> +#include <QPen> +#include <QFile> +#include <QEvent> +#include <QMouseEvent> +#include <QKeyEvent> +#include <QBasicTimer> +#include <QApplication> +#include <QGraphicsSceneMouseEvent> +#include <QtWebKit/QWebPage> +#include <QtWebKit/QWebFrame> +#include <QtWebKit/QWebElement> +#include <QtWebKit/QWebSettings> + +#include "qml.h" +#include "qmlengine.h" +#include "qmlstate.h" +#include "qlistmodelinterface.h" + +#include "qmlgraphicswebview.h" +#include <private/qmlgraphicspainteditem_p.h> + +QT_BEGIN_NAMESPACE +QML_DEFINE_TYPE(Qt,4,6,(QT_VERSION&0x00ff00)>>8,WebView,QmlGraphicsWebView) +QML_DEFINE_NOCREATE_TYPE(QAction) + +static const int MAX_DOUBLECLICK_TIME=500; // XXX need better gesture system + +class QmlGraphicsWebSettings : public QObject { + Q_OBJECT + + Q_PROPERTY(QString standardFontFamily READ standardFontFamily WRITE setStandardFontFamily) + Q_PROPERTY(QString fixedFontFamily READ fixedFontFamily WRITE setFixedFontFamily) + Q_PROPERTY(QString serifFontFamily READ serifFontFamily WRITE setSerifFontFamily) + Q_PROPERTY(QString sansSerifFontFamily READ sansSerifFontFamily WRITE setSansSerifFontFamily) + Q_PROPERTY(QString cursiveFontFamily READ cursiveFontFamily WRITE setCursiveFontFamily) + Q_PROPERTY(QString fantasyFontFamily READ fantasyFontFamily WRITE setFantasyFontFamily) + + Q_PROPERTY(int minimumFontSize READ minimumFontSize WRITE setMinimumFontSize) + Q_PROPERTY(int minimumLogicalFontSize READ minimumLogicalFontSize WRITE setMinimumLogicalFontSize) + Q_PROPERTY(int defaultFontSize READ defaultFontSize WRITE setDefaultFontSize) + Q_PROPERTY(int defaultFixedFontSize READ defaultFixedFontSize WRITE setDefaultFixedFontSize) + + Q_PROPERTY(bool autoLoadImages READ autoLoadImages WRITE setAutoLoadImages) + Q_PROPERTY(bool javascriptEnabled READ javascriptEnabled WRITE setJavascriptEnabled) + Q_PROPERTY(bool javaEnabled READ javaEnabled WRITE setJavaEnabled) + Q_PROPERTY(bool pluginsEnabled READ pluginsEnabled WRITE setPluginsEnabled) + Q_PROPERTY(bool privateBrowsingEnabled READ privateBrowsingEnabled WRITE setPrivateBrowsingEnabled) + Q_PROPERTY(bool javascriptCanOpenWindows READ javascriptCanOpenWindows WRITE setJavascriptCanOpenWindows) + Q_PROPERTY(bool javascriptCanAccessClipboard READ javascriptCanAccessClipboard WRITE setJavascriptCanAccessClipboard) + Q_PROPERTY(bool developerExtrasEnabled READ developerExtrasEnabled WRITE setDeveloperExtrasEnabled) + Q_PROPERTY(bool linksIncludedInFocusChain READ linksIncludedInFocusChain WRITE setLinksIncludedInFocusChain) + Q_PROPERTY(bool zoomTextOnly READ zoomTextOnly WRITE setZoomTextOnly) + Q_PROPERTY(bool printElementBackgrounds READ printElementBackgrounds WRITE setPrintElementBackgrounds) + Q_PROPERTY(bool offlineStorageDatabaseEnabled READ offlineStorageDatabaseEnabled WRITE setOfflineStorageDatabaseEnabled) + Q_PROPERTY(bool offlineWebApplicationCacheEnabled READ offlineWebApplicationCacheEnabled WRITE setOfflineWebApplicationCacheEnabled) + Q_PROPERTY(bool localStorageDatabaseEnabled READ localStorageDatabaseEnabled WRITE setLocalStorageDatabaseEnabled) + Q_PROPERTY(bool localContentCanAccessRemoteUrls READ localContentCanAccessRemoteUrls WRITE setLocalContentCanAccessRemoteUrls) + +public: + QmlGraphicsWebSettings() {} + + QString standardFontFamily() const { return s->fontFamily(QWebSettings::StandardFont); } + void setStandardFontFamily(const QString& f) { s->setFontFamily(QWebSettings::StandardFont,f); } + QString fixedFontFamily() const { return s->fontFamily(QWebSettings::FixedFont); } + void setFixedFontFamily(const QString& f) { s->setFontFamily(QWebSettings::FixedFont,f); } + QString serifFontFamily() const { return s->fontFamily(QWebSettings::SerifFont); } + void setSerifFontFamily(const QString& f) { s->setFontFamily(QWebSettings::SerifFont,f); } + QString sansSerifFontFamily() const { return s->fontFamily(QWebSettings::SansSerifFont); } + void setSansSerifFontFamily(const QString& f) { s->setFontFamily(QWebSettings::SansSerifFont,f); } + QString cursiveFontFamily() const { return s->fontFamily(QWebSettings::CursiveFont); } + void setCursiveFontFamily(const QString& f) { s->setFontFamily(QWebSettings::CursiveFont,f); } + QString fantasyFontFamily() const { return s->fontFamily(QWebSettings::FantasyFont); } + void setFantasyFontFamily(const QString& f) { s->setFontFamily(QWebSettings::FantasyFont,f); } + + int minimumFontSize() const { return s->fontSize(QWebSettings::MinimumFontSize); } + void setMinimumFontSize(int size) { s->setFontSize(QWebSettings::MinimumFontSize,size); } + int minimumLogicalFontSize() const { return s->fontSize(QWebSettings::MinimumLogicalFontSize); } + void setMinimumLogicalFontSize(int size) { s->setFontSize(QWebSettings::MinimumLogicalFontSize,size); } + int defaultFontSize() const { return s->fontSize(QWebSettings::DefaultFontSize); } + void setDefaultFontSize(int size) { s->setFontSize(QWebSettings::DefaultFontSize,size); } + int defaultFixedFontSize() const { return s->fontSize(QWebSettings::DefaultFixedFontSize); } + void setDefaultFixedFontSize(int size) { s->setFontSize(QWebSettings::DefaultFixedFontSize,size); } + + bool autoLoadImages() const { return s->testAttribute(QWebSettings::AutoLoadImages); } + void setAutoLoadImages(bool on) { s->setAttribute(QWebSettings::AutoLoadImages, on); } + bool javascriptEnabled() const { return s->testAttribute(QWebSettings::JavascriptEnabled); } + void setJavascriptEnabled(bool on) { s->setAttribute(QWebSettings::JavascriptEnabled, on); } + bool javaEnabled() const { return s->testAttribute(QWebSettings::JavaEnabled); } + void setJavaEnabled(bool on) { s->setAttribute(QWebSettings::JavaEnabled, on); } + bool pluginsEnabled() const { return s->testAttribute(QWebSettings::PluginsEnabled); } + void setPluginsEnabled(bool on) { s->setAttribute(QWebSettings::PluginsEnabled, on); } + bool privateBrowsingEnabled() const { return s->testAttribute(QWebSettings::PrivateBrowsingEnabled); } + void setPrivateBrowsingEnabled(bool on) { s->setAttribute(QWebSettings::PrivateBrowsingEnabled, on); } + bool javascriptCanOpenWindows() const { return s->testAttribute(QWebSettings::JavascriptCanOpenWindows); } + void setJavascriptCanOpenWindows(bool on) { s->setAttribute(QWebSettings::JavascriptCanOpenWindows, on); } + bool javascriptCanAccessClipboard() const { return s->testAttribute(QWebSettings::JavascriptCanAccessClipboard); } + void setJavascriptCanAccessClipboard(bool on) { s->setAttribute(QWebSettings::JavascriptCanAccessClipboard, on); } + bool developerExtrasEnabled() const { return s->testAttribute(QWebSettings::DeveloperExtrasEnabled); } + void setDeveloperExtrasEnabled(bool on) { s->setAttribute(QWebSettings::DeveloperExtrasEnabled, on); } + bool linksIncludedInFocusChain() const { return s->testAttribute(QWebSettings::LinksIncludedInFocusChain); } + void setLinksIncludedInFocusChain(bool on) { s->setAttribute(QWebSettings::LinksIncludedInFocusChain, on); } + bool zoomTextOnly() const { return s->testAttribute(QWebSettings::ZoomTextOnly); } + void setZoomTextOnly(bool on) { s->setAttribute(QWebSettings::ZoomTextOnly, on); } + bool printElementBackgrounds() const { return s->testAttribute(QWebSettings::PrintElementBackgrounds); } + void setPrintElementBackgrounds(bool on) { s->setAttribute(QWebSettings::PrintElementBackgrounds, on); } + bool offlineStorageDatabaseEnabled() const { return s->testAttribute(QWebSettings::OfflineStorageDatabaseEnabled); } + void setOfflineStorageDatabaseEnabled(bool on) { s->setAttribute(QWebSettings::OfflineStorageDatabaseEnabled, on); } + bool offlineWebApplicationCacheEnabled() const { return s->testAttribute(QWebSettings::OfflineWebApplicationCacheEnabled); } + void setOfflineWebApplicationCacheEnabled(bool on) { s->setAttribute(QWebSettings::OfflineWebApplicationCacheEnabled, on); } + bool localStorageDatabaseEnabled() const { return s->testAttribute(QWebSettings::LocalStorageDatabaseEnabled); } + void setLocalStorageDatabaseEnabled(bool on) { s->setAttribute(QWebSettings::LocalStorageDatabaseEnabled, on); } + bool localContentCanAccessRemoteUrls() const { return s->testAttribute(QWebSettings::LocalContentCanAccessRemoteUrls); } + void setLocalContentCanAccessRemoteUrls(bool on) { s->setAttribute(QWebSettings::LocalContentCanAccessRemoteUrls, on); } + + QWebSettings *s; +}; + +QML_DECLARE_TYPE(QmlGraphicsWebSettings) +QML_DEFINE_NOCREATE_TYPE(QmlGraphicsWebSettings) + +class QmlGraphicsWebViewPrivate : public QmlGraphicsPaintedItemPrivate +{ + Q_DECLARE_PUBLIC(QmlGraphicsWebView) + +public: + QmlGraphicsWebViewPrivate() + : QmlGraphicsPaintedItemPrivate(), page(0), preferredwidth(0), pagewidth(0), + progress(1.0), status(QmlGraphicsWebView::Null), pending(PendingNone), + newWindowComponent(0), newWindowParent(0), + windowObjects(this), + rendering(true) + { + } + + QUrl url; // page url might be different if it has not loaded yet + QWebPage *page; + + int preferredwidth; + int pagewidth; + qreal progress; + QmlGraphicsWebView::Status status; + QString statusText; + enum { PendingNone, PendingUrl, PendingHtml, PendingContent } pending; + QUrl pending_url; + QString pending_string; + QByteArray pending_data; + mutable QmlGraphicsWebSettings settings; + QmlComponent *newWindowComponent; + QmlGraphicsItem *newWindowParent; + + void updateWindowObjects(); + class WindowObjectList : public QmlConcreteList<QObject *> + { + public: + WindowObjectList(QmlGraphicsWebViewPrivate *p) + : priv(p) {} + virtual void append(QObject *v) { + QmlConcreteList<QObject *>::append(v); + priv->updateWindowObjects(); + } + private: + QmlGraphicsWebViewPrivate *priv; + } windowObjects; + + bool rendering; +}; + +/*! + \qmlclass WebView + \brief The WebView item allows you to add web content to a canvas. + \inherits Item + + A WebView renders web content based on a URL. + + 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 for typical online web pages. + + If the preferredWidth is set, the width will be this amount or larger, + usually laying out the web content to fit the preferredWidth. + + \qml + WebView { + url: "http://www.nokia.com" + width: 490 + height: 400 + scale: 0.5 + smooth: true + } + \endqml + + \image webview.png + + The item includes no scrolling, scaling, + toolbars, etc., those must be implemented around WebView. See the WebBrowser example + for a demonstration of this. +*/ + +/*! + \internal + \class QmlGraphicsWebView + \brief The QmlGraphicsWebView class allows you to add web content to a QmlView. + + A WebView renders web content base on a URL. + + \image webview.png + + The item includes no scrolling, scaling, + toolbars, etc., those must be implemented around WebView. See the WebBrowser example + for a demonstration of this. + + A QmlGraphicsWebView object can be instantiated in Qml using the tag \l WebView. +*/ + +QmlGraphicsWebView::QmlGraphicsWebView(QmlGraphicsItem *parent) + : QmlGraphicsPaintedItem(*(new QmlGraphicsWebViewPrivate), parent) +{ + init(); +} + +QmlGraphicsWebView::QmlGraphicsWebView(QmlGraphicsWebViewPrivate &dd, QmlGraphicsItem *parent) + : QmlGraphicsPaintedItem(dd, parent) +{ + init(); +} + +QmlGraphicsWebView::~QmlGraphicsWebView() +{ + Q_D(QmlGraphicsWebView); + delete d->page; +} + +void QmlGraphicsWebView::init() +{ + Q_D(QmlGraphicsWebView); + + setAcceptHoverEvents(true); + setAcceptedMouseButtons(Qt::LeftButton); + setFlag(QGraphicsItem::ItemHasNoContents, false); + + d->page = 0; +} + +void QmlGraphicsWebView::componentComplete() +{ + QmlGraphicsPaintedItem::componentComplete(); + Q_D(QmlGraphicsWebView); + switch (d->pending) { + case QmlGraphicsWebViewPrivate::PendingUrl: + setUrl(d->pending_url); + break; + case QmlGraphicsWebViewPrivate::PendingHtml: + setHtml(d->pending_string, d->pending_url); + break; + case QmlGraphicsWebViewPrivate::PendingContent: + setContent(d->pending_data, d->pending_string, d->pending_url); + break; + default: + break; + } + d->pending = QmlGraphicsWebViewPrivate::PendingNone; + d->updateWindowObjects(); +} + +QmlGraphicsWebView::Status QmlGraphicsWebView::status() const +{ + Q_D(const QmlGraphicsWebView); + return d->status; +} + + +/*! + \qmlproperty real WebView::progress + This property holds the progress of loading the current URL, from 0 to 1. + + \sa onLoadFinished() onLoadFailed() +*/ +qreal QmlGraphicsWebView::progress() const +{ + Q_D(const QmlGraphicsWebView); + return d->progress; +} + +void QmlGraphicsWebView::doLoadStarted() +{ + Q_D(QmlGraphicsWebView); + + if (!d->url.isEmpty()) { + d->status = Loading; + emit statusChanged(d->status); + } + emit loadStarted(); +} + +void QmlGraphicsWebView::doLoadProgress(int p) +{ + Q_D(QmlGraphicsWebView); + if (d->progress == p/100.0) + return; + d->progress = p/100.0; + emit progressChanged(); +} + +void QmlGraphicsWebView::pageUrlChanged() +{ + Q_D(QmlGraphicsWebView); + + // Reset zooming to full + qreal zf = 1.0; + if (d->preferredwidth) { + if (d->pagewidth) + zf = qreal(d->preferredwidth)/d->pagewidth; + page()->mainFrame()->setZoomFactor(zf); + page()->setViewportSize(QSize(d->preferredwidth,-1)); + } else { + page()->mainFrame()->setZoomFactor(zf); + page()->setViewportSize(QSize(-1,-1)); + } + emit zooming(zf,0,0); + expandToWebPage(); + + if ((d->url.isEmpty() && page()->mainFrame()->url() != QUrl(QLatin1String("about:blank"))) + || d->url != page()->mainFrame()->url()) + { + d->url = page()->mainFrame()->url(); + if (d->url == QUrl(QLatin1String("about:blank"))) + d->url = QUrl(); + emit urlChanged(); + } +} + +void QmlGraphicsWebView::doLoadFinished(bool ok) +{ + Q_D(QmlGraphicsWebView); + + if (title().isEmpty()) + pageUrlChanged(); // XXX bug 232556 - pages with no title never get urlChanged() + + if (ok) { + d->status = d->url.isEmpty() ? Null : Ready; + emit loadFinished(); + } else { + d->status = Error; + emit loadFailed(); + } + emit statusChanged(d->status); +} + +/*! + \qmlproperty url WebView::url + This property holds the URL to the page displayed in this item. It can be set, + but also can change spontaneously (eg. because of network redirection). + + If the url is empty, the page is blank. + + The url is always absolute (QML will resolve relative URL strings in the context + of the containing QML document). +*/ +QUrl QmlGraphicsWebView::url() const +{ + Q_D(const QmlGraphicsWebView); + return d->url; +} + +void QmlGraphicsWebView::setUrl(const QUrl &url) +{ + Q_D(QmlGraphicsWebView); + if (url == d->url) + return; + + if (isComponentComplete()) { + d->url = url; + qreal zf = 1.0; + if (d->preferredwidth) { + if (d->pagewidth) + zf = qreal(d->preferredwidth)/d->pagewidth; + page()->setViewportSize(QSize(d->preferredwidth,-1)); + } else { + page()->setViewportSize(QSize(-1,-1)); + } + page()->mainFrame()->setZoomFactor(zf); + QUrl seturl = url; + if (seturl.isEmpty()) + seturl = QUrl(QLatin1String("about:blank")); + + Q_ASSERT(!seturl.isRelative()); + + page()->mainFrame()->load(seturl); + + emit urlChanged(); + } else { + d->pending = d->PendingUrl; + d->pending_url = url; + } +} + +/*! + \qmlproperty int WebView::preferredWidth + This property holds the ideal width for displaying the current URL. +*/ +int QmlGraphicsWebView::preferredWidth() const +{ + Q_D(const QmlGraphicsWebView); + return d->preferredwidth; +} + +void QmlGraphicsWebView::setPreferredWidth(int iw) +{ + Q_D(QmlGraphicsWebView); + if (d->preferredwidth == iw) return; + if (d->pagewidth) { + if (d->preferredwidth) { + setZoomFactor(zoomFactor()*iw/d->preferredwidth); + } else { + setZoomFactor(qreal(iw)/d->pagewidth); + } + } + d->preferredwidth = iw; + expandToWebPage(); + emit preferredWidthChanged(); +} + +/*! + \qmlproperty int WebView::webPageWidth + This property holds the page width suggested to the web engine. +*/ +int QmlGraphicsWebView::webPageWidth() const +{ + Q_D(const QmlGraphicsWebView); + return d->pagewidth; +} + +void QmlGraphicsWebView::setWebPageWidth(int pw) +{ + Q_D(QmlGraphicsWebView); + if (d->pagewidth == pw) return; + d->pagewidth = pw; + expandToWebPage(); +} + +/*! + Evaluates the \a scriptSource JavaScript inside the main frame + context and returns the result of the last executed statement. +*/ +QVariant QmlGraphicsWebView::evaluateJavaScript(const QString &scriptSource) +{ + return this->page()->mainFrame()->evaluateJavaScript(scriptSource); +} + +void QmlGraphicsWebView::focusChanged(bool hasFocus) +{ + QFocusEvent e(hasFocus ? QEvent::FocusIn : QEvent::FocusOut); + page()->event(&e); + QmlGraphicsItem::focusChanged(hasFocus); +} + +void QmlGraphicsWebView::contentsSizeChanged(const QSize&) +{ + expandToWebPage(); +} + +void QmlGraphicsWebView::expandToWebPage() +{ + Q_D(QmlGraphicsWebView); + QSize cs = page()->mainFrame()->contentsSize(); + qreal zoom = zoomFactor(); + if (cs.width() < d->preferredwidth*zoom) + cs.setWidth(d->preferredwidth*zoom); + if (widthValid()) + cs.setWidth(width()); + if (heightValid()) + cs.setHeight(height()); + if (cs != page()->viewportSize()) { + page()->setViewportSize(cs); + clearCache(); + setImplicitWidth(cs.width()); + setImplicitHeight(cs.height()); + } +} + +void QmlGraphicsWebView::geometryChanged(const QRectF &newGeometry, + const QRectF &oldGeometry) +{ + if (newGeometry.size() != oldGeometry.size()) + expandToWebPage(); + QmlGraphicsPaintedItem::geometryChanged(newGeometry, oldGeometry); +} + +void QmlGraphicsWebView::paintPage(const QRect& r) +{ + Q_D(QmlGraphicsWebView); + if (d->page->mainFrame()->contentsSize() != contentsSize()) + setContentsSize(d->page->mainFrame()->contentsSize()); + dirtyCache(r); + update(); +} + +/*! + \qmlproperty int WebView::pixelCacheSize + + This property holds the maximum number of pixels of image cache to + allow. The default is 0.1 megapixels. The cache will not be larger + than the (unscaled) size of the WebView. +*/ +int QmlGraphicsWebView::pixelCacheSize() const +{ + Q_D(const QmlGraphicsWebView); + return d->max_imagecache_size; +} + +void QmlGraphicsWebView::setPixelCacheSize(int pixels) +{ + Q_D(QmlGraphicsWebView); + if (pixels < d->max_imagecache_size) { + int cachesize=0; + for (int i=0; i<d->imagecache.count(); ++i) { + QRect area = d->imagecache[i]->area; + cachesize += area.width()*area.height(); + } + while (d->imagecache.count() && cachesize > pixels) { + int oldest=-1; + int age=-1; + for (int i=0; i<d->imagecache.count(); ++i) { + int a = d->imagecache[i]->age; + if (a > age) { + oldest = i; + age = a; + } + } + cachesize -= d->imagecache[oldest]->area.width()*d->imagecache[oldest]->area.height(); + d->imagecache.removeAt(oldest); + } + } + d->max_imagecache_size = pixels; +} + +/*! + \qmlproperty list<object> WebView::javaScriptWindowObjects + + This property is a list of object that are available from within + the webview's JavaScript context. + + The \a object will be inserted as a child of the frame's window + object, under the name given by the attached property \c WebView.windowObjectName. + + \qml + WebView { + javaScriptWindowObjects: Object { + WebView.windowObjectName: "coordinates" + } + } + \endqml + + Properties of the object will be exposed as JavaScript properties and slots as + JavaScript methods. + + If Javascript is not enabled for this page, then this property does nothing. +*/ +QmlList<QObject *> *QmlGraphicsWebView::javaScriptWindowObjects() +{ + Q_D(QmlGraphicsWebView); + return &d->windowObjects; +} + +class QmlGraphicsWebViewAttached : public QObject +{ + Q_OBJECT + Q_PROPERTY(QString windowObjectName READ windowObjectName WRITE setWindowObjectName) +public: + QmlGraphicsWebViewAttached(QObject *parent) + : QObject(parent) + { + } + + QString windowObjectName() const + { + return m_windowObjectName; + } + + void setWindowObjectName(const QString &n) + { + m_windowObjectName = n; + } + +private: + QString m_windowObjectName; +}; + +QmlGraphicsWebViewAttached *QmlGraphicsWebView::qmlAttachedProperties(QObject *o) +{ + return new QmlGraphicsWebViewAttached(o); +} + +void QmlGraphicsWebViewPrivate::updateWindowObjects() +{ + Q_Q(QmlGraphicsWebView); + if (!q->isComponentComplete() || !page) + return; + + for (int ii = 0; ii < windowObjects.count(); ++ii) { + QObject *object = windowObjects.at(ii); + QmlGraphicsWebViewAttached *attached = static_cast<QmlGraphicsWebViewAttached *>(qmlAttachedPropertiesObject<QmlGraphicsWebView>(object)); + if (attached && !attached->windowObjectName().isEmpty()) { + page->mainFrame()->addToJavaScriptWindowObject(attached->windowObjectName(), object); + } + } +} + +bool QmlGraphicsWebView::renderingEnabled() const +{ + Q_D(const QmlGraphicsWebView); + return d->rendering; +} + +void QmlGraphicsWebView::setRenderingEnabled(bool enabled) +{ + Q_D(QmlGraphicsWebView); + if (d->rendering == enabled) + return; + d->rendering = enabled; + setCacheFrozen(!enabled); + if (enabled) + clearCache(); +} + + +void QmlGraphicsWebView::drawContents(QPainter *p, const QRect &r) +{ + Q_D(QmlGraphicsWebView); + if (d->rendering) + page()->mainFrame()->render(p,r); +} + +static QMouseEvent *sceneMouseEventToMouseEvent(QGraphicsSceneMouseEvent *e) +{ + QEvent::Type t; + switch(e->type()) { + default: + case QEvent::GraphicsSceneMousePress: + t = QEvent::MouseButtonPress; + break; + case QEvent::GraphicsSceneMouseRelease: + t = QEvent::MouseButtonRelease; + break; + case QEvent::GraphicsSceneMouseMove: + t = QEvent::MouseMove; + break; + case QGraphicsSceneEvent::GraphicsSceneMouseDoubleClick: + t = QEvent::MouseButtonDblClick; + break; + } + + QMouseEvent *me = new QMouseEvent(t, e->pos().toPoint(), e->button(), e->buttons(), 0); + return me; +} + +static QMouseEvent *sceneHoverMoveEventToMouseEvent(QGraphicsSceneHoverEvent *e) +{ + QEvent::Type t = QEvent::MouseMove; + + QMouseEvent *me = new QMouseEvent(t, e->pos().toPoint(), Qt::NoButton, Qt::NoButton, 0); + + return me; +} + + +/*! + \qmlsignal WebView::onDoubleClick(clickx,clicky) + + The WebView does not pass double-click events to the web engine, but rather + emits this signals. +*/ + +void QmlGraphicsWebView::mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event) +{ + QMouseEvent *me = sceneMouseEventToMouseEvent(event); + emit doubleClick(me->x(),me->y()); + delete me; +} + +void QmlGraphicsWebView::heuristicZoom(int clickX, int clickY) +{ + Q_D(QmlGraphicsWebView); + qreal ozf = zoomFactor(); + QRect showarea = elementAreaAt(clickX, clickY, 1, 1); + qreal z = qreal(preferredWidth())*ozf/showarea.width()*.95; + if ((z/ozf > 0.99 && z/ozf <1.01) || z < qreal(d->preferredwidth)/d->pagewidth) { + // zoom out + z = qreal(d->preferredwidth)/d->pagewidth; + } + QRectF r(showarea.left()/ozf*z, showarea.top()/ozf*z, showarea.width()/ozf*z, showarea.height()/ozf*z); + emit zooming(z,r.x()+r.width()/2, r.y()+r.height()/2); +} + +void QmlGraphicsWebView::mousePressEvent(QGraphicsSceneMouseEvent *event) +{ + setFocus (true); + QMouseEvent *me = sceneMouseEventToMouseEvent(event); + page()->event(me); + event->setAccepted( +/* + It is not correct to send the press event upwards, if it is not accepted by WebKit + e.g. push button does not work, if done so as QGraphicsScene will not send the release event at all to WebKit + Might be a bug in WebKit, though + */ +#if 1 //QT_VERSION <= 0x040500 // XXX see bug 230835 + true +#else + me->isAccepted() +#endif + ); + delete me; + if (!event->isAccepted()) { + QmlGraphicsPaintedItem::mousePressEvent(event); + } +} + +void QmlGraphicsWebView::mouseReleaseEvent(QGraphicsSceneMouseEvent *event) +{ + QMouseEvent *me = sceneMouseEventToMouseEvent(event); + page()->event(me); + event->setAccepted( +/* + It is not correct to send the press event upwards, if it is not accepted by WebKit + e.g. push button does not work, if done so as QGraphicsScene will not send all the events to WebKit + */ +#if 1 //QT_VERSION <= 0x040500 // XXX see bug 230835 + true +#else + me->isAccepted() +#endif + ); + delete me; + if (!event->isAccepted()) { + QmlGraphicsPaintedItem::mouseReleaseEvent(event); + } +} + +void QmlGraphicsWebView::mouseMoveEvent(QGraphicsSceneMouseEvent *event) +{ + QMouseEvent *me = sceneMouseEventToMouseEvent(event); + page()->event(me); + event->setAccepted( +/* + It is not correct to send the press event upwards, if it is not accepted by WebKit + e.g. push button does not work, if done so as QGraphicsScene will not send the release event at all to WebKit + Might be a bug in WebKit, though + */ +#if 1 // QT_VERSION <= 0x040500 // XXX see bug 230835 + true +#else + me->isAccepted() +#endif + ); + delete me; + if (!event->isAccepted()) + QmlGraphicsPaintedItem::mouseMoveEvent(event); + +} +void QmlGraphicsWebView::hoverMoveEvent (QGraphicsSceneHoverEvent * event) +{ + QMouseEvent *me = sceneHoverMoveEventToMouseEvent(event); + page()->event(me); + event->setAccepted( +#if QT_VERSION <= 0x040500 // XXX see bug 230835 + true +#else + me->isAccepted() +#endif + ); + delete me; + if (!event->isAccepted()) + QmlGraphicsPaintedItem::hoverMoveEvent(event); +} + +void QmlGraphicsWebView::keyPressEvent(QKeyEvent* event) +{ + page()->event(event); + if (!event->isAccepted()) + QmlGraphicsPaintedItem::keyPressEvent(event); +} + +void QmlGraphicsWebView::keyReleaseEvent(QKeyEvent* event) +{ + page()->event(event); + if (!event->isAccepted()) + QmlGraphicsPaintedItem::keyReleaseEvent(event); +} + +bool QmlGraphicsWebView::sceneEvent(QEvent *event) +{ + if (event->type() == QEvent::KeyPress) { + QKeyEvent *k = static_cast<QKeyEvent *>(event); + if (k->key() == Qt::Key_Tab || k->key() == Qt::Key_Backtab) { + if (!(k->modifiers() & (Qt::ControlModifier | Qt::AltModifier))) { //### Add MetaModifier? + page()->event(event); + if (event->isAccepted()) + return true; + } + } + } + return QmlGraphicsPaintedItem::sceneEvent(event); +} + + + +/*! + \qmlproperty action WebView::back + This property holds the action for causing the previous URL in the history to be displayed. +*/ +QAction *QmlGraphicsWebView::backAction() const +{ + return page()->action(QWebPage::Back); +} + +/*! + \qmlproperty action WebView::forward + This property holds the action for causing the next URL in the history to be displayed. +*/ +QAction *QmlGraphicsWebView::forwardAction() const +{ + return page()->action(QWebPage::Forward); +} + +/*! + \qmlproperty action WebView::reload + This property holds the action for reloading with the current URL +*/ +QAction *QmlGraphicsWebView::reloadAction() const +{ + return page()->action(QWebPage::Reload); +} + +/*! + \qmlproperty action WebView::stop + This property holds the action for stopping loading with the current URL +*/ +QAction *QmlGraphicsWebView::stopAction() const +{ + return page()->action(QWebPage::Stop); +} + +/*! + \qmlproperty real WebView::title + This property holds the title of the web page currently viewed + + By default, this property contains an empty string. +*/ +QString QmlGraphicsWebView::title() const +{ + return page()->mainFrame()->title(); +} + + + +/*! + \qmlproperty pixmap WebView::icon + This property holds the icon associated with the web page currently viewed +*/ +QPixmap QmlGraphicsWebView::icon() const +{ + return page()->mainFrame()->icon().pixmap(QSize(256,256)); +} + + +/*! + \qmlproperty real WebView::textSizeMultiplier + This property holds the multiplier used to scale the text in a Web page +*/ +void QmlGraphicsWebView::setTextSizeMultiplier(qreal factor) +{ + page()->mainFrame()->setTextSizeMultiplier(factor); +} + +qreal QmlGraphicsWebView::textSizeMultiplier() const +{ + return page()->mainFrame()->textSizeMultiplier(); +} + +/*! + \qmlproperty real WebView::zoomFactor + This property holds the multiplier used to scale the contents of a Web page. +*/ +void QmlGraphicsWebView::setZoomFactor(qreal factor) +{ + Q_D(QmlGraphicsWebView); + if (factor == page()->mainFrame()->zoomFactor()) + return; + + page()->mainFrame()->setZoomFactor(factor); + page()->setViewportSize(QSize(d->pagewidth*factor,-1)); + expandToWebPage(); + + emit zoomFactorChanged(); +} + +qreal QmlGraphicsWebView::zoomFactor() const +{ + return page()->mainFrame()->zoomFactor(); +} + +/*! + \qmlproperty string WebView::statusText + + This property is the current status suggested by the current web page. In a web browser, + such status is often shown in some kind of status bar. +*/ +void QmlGraphicsWebView::setStatusText(const QString& s) +{ + Q_D(QmlGraphicsWebView); + d->statusText = s; + emit statusTextChanged(); +} + +void QmlGraphicsWebView::windowObjectCleared() +{ + Q_D(QmlGraphicsWebView); + d->updateWindowObjects(); +} + +QString QmlGraphicsWebView::statusText() const +{ + Q_D(const QmlGraphicsWebView); + return d->statusText; +} + +QWebPage *QmlGraphicsWebView::page() const +{ + Q_D(const QmlGraphicsWebView); + + if (!d->page) { + QmlGraphicsWebView *self = const_cast<QmlGraphicsWebView*>(this); + QWebPage *wp = new QmlGraphicsWebPage(self); + + // QML items don't default to having a background, + // even though most we pages will set one anyway. + QPalette pal = QApplication::palette(); + pal.setBrush(QPalette::Base, QColor::fromRgbF(0, 0, 0, 0)); + wp->setPalette(pal); + + wp->setNetworkAccessManager(qmlEngine(this)->networkAccessManager()); + + self->setPage(wp); + + return wp; + } + + return d->page; +} + + +// The QObject interface to settings(). +/*! + \qmlproperty string WebView::settings.standardFontFamily + \qmlproperty string WebView::settings.fixedFontFamily + \qmlproperty string WebView::settings.serifFontFamily + \qmlproperty string WebView::settings.sansSerifFontFamily + \qmlproperty string WebView::settings.cursiveFontFamily + \qmlproperty string WebView::settings.fantasyFontFamily + + \qmlproperty int WebView::settings.minimumFontSize + \qmlproperty int WebView::settings.minimumLogicalFontSize + \qmlproperty int WebView::settings.defaultFontSize + \qmlproperty int WebView::settings.defaultFixedFontSize + + \qmlproperty bool WebView::settings.autoLoadImages + \qmlproperty bool WebView::settings.javascriptEnabled + \qmlproperty bool WebView::settings.javaEnabled + \qmlproperty bool WebView::settings.pluginsEnabled + \qmlproperty bool WebView::settings.privateBrowsingEnabled + \qmlproperty bool WebView::settings.javascriptCanOpenWindows + \qmlproperty bool WebView::settings.javascriptCanAccessClipboard + \qmlproperty bool WebView::settings.developerExtrasEnabled + \qmlproperty bool WebView::settings.linksIncludedInFocusChain + \qmlproperty bool WebView::settings.zoomTextOnly + \qmlproperty bool WebView::settings.printElementBackgrounds + \qmlproperty bool WebView::settings.offlineStorageDatabaseEnabled + \qmlproperty bool WebView::settings.offlineWebApplicationCacheEnabled + \qmlproperty bool WebView::settings.localStorageDatabaseEnabled + \qmlproperty bool WebView::settings.localContentCanAccessRemoteUrls + + These properties give access to the settings controlling the web view. + + See QWebSettings for details of these properties. + + \qml + WebView { + settings.pluginsEnabled: true + settings.standardFontFamily: "Arial" + ... + } + \endqml +*/ +QmlGraphicsWebSettings *QmlGraphicsWebView::settingsObject() const +{ + Q_D(const QmlGraphicsWebView); + d->settings.s = page()->settings(); + return &d->settings; +} + +void QmlGraphicsWebView::setPage(QWebPage *page) +{ + Q_D(QmlGraphicsWebView); + if (d->page == page) + return; + if (d->page) { + if (d->page->parent() == this) { + delete d->page; + } else { + d->page->disconnect(this); + } + } + d->page = page; + d->page->setViewportSize(QSize( + d->preferredwidth>0 ? d->preferredwidth : -1, -1)); + d->page->mainFrame()->setScrollBarPolicy(Qt::Horizontal,Qt::ScrollBarAlwaysOff); + d->page->mainFrame()->setScrollBarPolicy(Qt::Vertical,Qt::ScrollBarAlwaysOff); + connect(d->page,SIGNAL(repaintRequested(QRect)),this,SLOT(paintPage(QRect))); + connect(d->page->mainFrame(),SIGNAL(urlChanged(QUrl)),this,SLOT(pageUrlChanged())); + connect(d->page->mainFrame(), SIGNAL(titleChanged(QString)), this, SIGNAL(titleChanged(QString))); + connect(d->page->mainFrame(), SIGNAL(iconChanged()), this, SIGNAL(iconChanged())); + connect(d->page->mainFrame(), SIGNAL(contentsSizeChanged(QSize)), this, SLOT(contentsSizeChanged(QSize))); + + connect(d->page,SIGNAL(loadStarted()),this,SLOT(doLoadStarted())); + connect(d->page,SIGNAL(loadProgress(int)),this,SLOT(doLoadProgress(int))); + connect(d->page,SIGNAL(loadFinished(bool)),this,SLOT(doLoadFinished(bool))); + connect(d->page,SIGNAL(statusBarMessage(QString)),this,SLOT(setStatusText(QString))); + + connect(d->page->mainFrame(),SIGNAL(javaScriptWindowObjectCleared()),this,SLOT(windowObjectCleared())); +} + +/*! + \qmlsignal WebView::onLoadStarted() + + This handler is called when the web engine begins loading + a page. + + \sa progress onLoadFinished() onLoadFailed() +*/ + +/*! + \qmlsignal WebView::onLoadFinished() + + This handler is called when the web engine finishes loading + a page, including any component content. + + \sa progress onLoadFailed() +*/ + +/*! + \qmlsignal WebView::onLoadFailed() + + This handler is called when the web engine fails loading + a page or any component content. + + \sa progress onLoadFinished() +*/ + +void QmlGraphicsWebView::load(const QNetworkRequest &request, + QNetworkAccessManager::Operation operation, + const QByteArray &body) +{ + page()->mainFrame()->load(request, operation, body); +} + +QString QmlGraphicsWebView::html() const +{ + return page()->mainFrame()->toHtml(); +} + +/*! + \qmlproperty string WebView::html + This property holds HTML text set directly + + The html property can be set as a string. + + \qml + WebView { + html: "<p>This is <b>HTML</b>." + } + \endqml +*/ +void QmlGraphicsWebView::setHtml(const QString &html, const QUrl &baseUrl) +{ + Q_D(QmlGraphicsWebView); + page()->setViewportSize(QSize( + d->preferredwidth>0 ? d->preferredwidth : width(), height())); + if (isComponentComplete()) + page()->mainFrame()->setHtml(html, baseUrl); + else { + d->pending = d->PendingHtml; + d->pending_url = baseUrl; + d->pending_string = html; + } +} + +void QmlGraphicsWebView::setContent(const QByteArray &data, const QString &mimeType, const QUrl &baseUrl) +{ + Q_D(QmlGraphicsWebView); + page()->setViewportSize(QSize( + d->preferredwidth>0 ? d->preferredwidth : width(), height())); + + if (isComponentComplete()) + page()->mainFrame()->setContent(data,mimeType,qmlContext(this)->resolvedUrl(baseUrl)); + else { + d->pending = d->PendingContent; + d->pending_url = baseUrl; + d->pending_string = mimeType; + d->pending_data = data; + } +} + +QWebHistory *QmlGraphicsWebView::history() const +{ + return page()->history(); +} + +QWebSettings *QmlGraphicsWebView::settings() const +{ + return page()->settings(); +} + +QmlGraphicsWebView *QmlGraphicsWebView::createWindow(QWebPage::WebWindowType type) +{ + Q_D(QmlGraphicsWebView); + switch (type) { + case QWebPage::WebBrowserWindow: { + if (!d->newWindowComponent && d->newWindowParent) + qWarning("WebView::newWindowComponent not set - WebView::newWindowParent ignored"); + else if (d->newWindowComponent && !d->newWindowParent) + qWarning("WebView::newWindowParent not set - WebView::newWindowComponent ignored"); + else if (d->newWindowComponent && d->newWindowParent) { + QmlGraphicsWebView *webview = 0; + QmlContext *windowContext = new QmlContext(qmlContext(this)); + + QObject *nobj = d->newWindowComponent->create(windowContext); + if (nobj) { + windowContext->setParent(nobj); + QmlGraphicsItem *item = qobject_cast<QmlGraphicsItem *>(nobj); + if (!item) { + delete nobj; + } else { + webview = item->findChild<QmlGraphicsWebView*>(); + if (!webview) { + delete item; + } else { + item->setParent(d->newWindowParent); + } + } + } else { + delete windowContext; + } + + return webview; + } + } + break; + case QWebPage::WebModalDialog: { + // Not supported + } + } + return 0; +} + +/*! + \qmlproperty component WebView::newWindowComponent + + This property holds the component to use for new windows. + The component must have a WebView somewhere in its structure. + + When the web engine requests a new window, it will be an instance of + this component. + + The parent of the new window is set by newWindowParent. It must be set. +*/ +QmlComponent *QmlGraphicsWebView::newWindowComponent() const +{ + Q_D(const QmlGraphicsWebView); + return d->newWindowComponent; +} + +void QmlGraphicsWebView::setNewWindowComponent(QmlComponent *newWindow) +{ + Q_D(QmlGraphicsWebView); + delete d->newWindowComponent; + d->newWindowComponent = newWindow; +} + + +/*! + \qmlproperty item WebView::newWindowParent + + The parent item for new windows. + + \sa newWindowComponent +*/ +QmlGraphicsItem *QmlGraphicsWebView::newWindowParent() const +{ + Q_D(const QmlGraphicsWebView); + return d->newWindowParent; +} + +void QmlGraphicsWebView::setNewWindowParent(QmlGraphicsItem *parent) +{ + Q_D(QmlGraphicsWebView); + delete d->newWindowParent; + d->newWindowParent = parent; +} + +/*! + Returns the area of the largest element at position (\a x,\a y) that is no larger + than \a maxwidth by \a maxheight pixels. + + May return an area larger in the case when no smaller element is at the position. +*/ +QRect QmlGraphicsWebView::elementAreaAt(int x, int y, int maxwidth, int maxheight) const +{ + QWebHitTestResult hit = page()->mainFrame()->hitTestContent(QPoint(x,y)); + QWebElement element = hit.enclosingBlockElement(); + QWebElement parent = element.parent(); + if (maxwidth<=0) maxwidth = INT_MAX; + if (maxheight<=0) maxheight = INT_MAX; + while (!parent.isNull() && parent.geometry().width() <= maxwidth && parent.geometry().height() <= maxheight) { + element = parent; + parent = element.parent(); + } + return element.geometry(); +} + +/*! + \internal + \class QmlGraphicsWebPage + \brief The QmlGraphicsWebPage class is a QWebPage that can create QML plugins. + + \sa QmlGraphicsWebView +*/ +QmlGraphicsWebPage::QmlGraphicsWebPage(QmlGraphicsWebView *parent) : + QWebPage(parent) +{ +} + +QmlGraphicsWebPage::~QmlGraphicsWebPage() +{ +} + +/* + Qt WebKit does not understand non-QWidget plugins, so dummy widgets + are created, parented to a single dummy tool window. + + The requirements for QML object plugins are input to the Qt WebKit + non-QWidget plugin support, which will obsolete this kludge. +*/ +class QWidget_Dummy_Plugin : public QWidget +{ + Q_OBJECT +public: + static QWidget *dummy_shared_parent() + { + static QWidget *dsp = 0; + if (!dsp) { + dsp = new QWidget(0,Qt::Tool); + dsp->setGeometry(-10000,-10000,0,0); + dsp->show(); + } + return dsp; + } + QWidget_Dummy_Plugin(const QUrl& url, QmlGraphicsWebView *view, const QStringList ¶mNames, const QStringList ¶mValues) : + QWidget(dummy_shared_parent()), + propertyNames(paramNames), + propertyValues(paramValues), + webview(view) + { + QmlEngine *engine = qmlEngine(webview); + component = new QmlComponent(engine, url, this); + item = 0; + if (component->isLoading()) + connect(component, SIGNAL(statusChanged(QmlComponent::Status)), this, SLOT(qmlLoaded())); + else + qmlLoaded(); + } + +public Q_SLOTS: + void qmlLoaded() + { + if (component->isError()) { + // ### Could instead give these errors to the WebView to handle. + qWarning() << component->errors(); + return; + } + item = qobject_cast<QmlGraphicsItem*>(component->create(qmlContext(webview))); + item->setParent(webview); + QString jsObjName; + for (int i=0; i<propertyNames.count(); ++i) { + if (propertyNames[i] != QLatin1String("type") && propertyNames[i] != QLatin1String("data")) { + item->setProperty(propertyNames[i].toUtf8(),propertyValues[i]); + if (propertyNames[i] == QLatin1String("objectname")) + jsObjName = propertyValues[i]; + } + } + if (!jsObjName.isNull()) { + QWebFrame *f = webview->page()->mainFrame(); + f->addToJavaScriptWindowObject(jsObjName, item); + } + resizeEvent(0); + delete component; + component = 0; + } + void resizeEvent(QResizeEvent*) + { + if (item) { + item->setX(x()); + item->setY(y()); + item->setWidth(width()); + item->setHeight(height()); + } + } + +private: + QmlComponent *component; + QmlGraphicsItem *item; + QStringList propertyNames, propertyValues; + QmlGraphicsWebView *webview; +}; + +QmlGraphicsWebView *QmlGraphicsWebPage::viewItem() +{ + return static_cast<QmlGraphicsWebView*>(parent()); +} + +QObject *QmlGraphicsWebPage::createPlugin(const QString &, const QUrl &url, const QStringList ¶mNames, const QStringList ¶mValues) +{ + QUrl comp = qmlContext(viewItem())->resolvedUrl(url); + return new QWidget_Dummy_Plugin(comp,viewItem(),paramNames,paramValues); +} + +QWebPage *QmlGraphicsWebPage::createWindow(WebWindowType type) +{ + QmlGraphicsWebView *newView = viewItem()->createWindow(type); + if (newView) + return newView->page(); + return 0; +} + +QT_END_NAMESPACE + +#include "qfxwebview.moc" |