The QWebView class provides a widget that is used to view and edit web documents.
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| QWebView (QWidget *parent=0) |
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virtual | ~QWebView () |
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bool | event (QEvent *event) override |
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bool | findText (const QString &subString, QWebPage::FindFlags options=0) |
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QWebHistory * | history () const |
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QVariant | inputMethodQuery (Qt::InputMethodQuery property) const override |
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void | load (const QNetworkRequest &request, QNetworkAccessManager::Operation operation=QNetworkAccessManager::GetOperation, const QByteArray &body=QByteArray ()) |
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void | load (const QUrl &url) |
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QWebPage * | page () const |
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QAction * | pageAction (QWebPage::WebAction action) const |
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void | setContent (const QByteArray &data, const QString &mimeType=QString (), const QUrl &baseUrl=QUrl ()) |
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void | setHtml (const QString &html, const QUrl &baseUrl=QUrl ()) |
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void | setPage (QWebPage *page) |
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void | setRenderHint (QPainter::RenderHint hint, bool enabled=true) |
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void | setTextSizeMultiplier (qreal factor) |
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QWebSettings * | settings () const |
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void | setUrl (const QUrl &url) |
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QSize | sizeHint () const override |
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qreal | textSizeMultiplier () const |
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void | triggerPageAction (QWebPage::WebAction action, bool checked=false) |
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QUrl | url () const |
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| QWidget (QWidget *parent=nullptr, Qt::WindowFlags flags=Qt::EmptyFlag) |
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| ~QWidget () |
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bool | acceptDrops () const |
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QString | accessibleDescription () const |
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QString | accessibleName () const |
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QList< QAction * > | actions () const |
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void | activateWindow () |
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void | addAction (QAction *action) |
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void | addActions (const QList< QAction * > &actions) |
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void | adjustSize () |
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bool | autoFillBackground () const |
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QPalette::ColorRole | backgroundRole () const |
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QBackingStore * | backingStore () const |
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QSize | baseSize () const |
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QWidget * | childAt (const QPoint &position) const |
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QWidget * | childAt (int x, int y) const |
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QRect | childrenRect () const |
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QRegion | childrenRegion () const |
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void | clearFocus () |
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void | clearMask () |
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QMargins | contentsMargins () const |
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QRect | contentsRect () const |
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Qt::ContextMenuPolicy | contextMenuPolicy () const |
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QCursor | cursor () const |
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WId | effectiveWinId () const |
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void | ensurePolished () const |
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Qt::FocusPolicy | focusPolicy () const |
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QWidget * | focusProxy () const |
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QWidget * | focusWidget () const |
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const QFont & | font () const |
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QFontInfo | fontInfo () const |
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QFontMetrics | fontMetrics () const |
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QPalette::ColorRole | foregroundRole () const |
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QRect | frameGeometry () const |
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QSize | frameSize () const |
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const QRect & | geometry () const |
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void | getContentsMargins (int *left, int *top, int *right, int *bottom) const |
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QPixmap | grab (const QRect &rectangle=QRect (QPoint (0, 0), QSize (-1,-1))) |
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void | grabGesture (Qt::GestureType gestureType, Qt::GestureFlags flags=Qt::GestureFlags ()) |
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void | grabKeyboard () |
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void | grabMouse () |
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void | grabMouse (const QCursor &cursor) |
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int | grabShortcut (const QKeySequence &key, Qt::ShortcutContext context=Qt::WindowShortcut) |
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QGraphicsEffect * | graphicsEffect () const |
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QGraphicsProxyWidget * | graphicsProxyWidget () const |
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bool | hasEditFocus () const |
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bool | hasFocus () const |
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virtual bool | hasHeightForWidth () const |
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bool | hasMouseTracking () const |
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int | height () const |
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virtual int | heightForWidth (int width) const |
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Qt::InputMethodHints | inputMethodHints () const |
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void | insertAction (QAction *before, QAction *action) |
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void | insertActions (QAction *before, QList< QAction * > actions) |
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bool | isActiveWindow () const |
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bool | isAncestorOf (const QWidget *child) const |
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bool | isEnabled () const |
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bool | isEnabledTo (const QWidget *parent) const |
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bool | isEnabledToTLW () const |
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bool | isFullScreen () const |
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bool | isHidden () const |
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bool | isMaximized () const |
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bool | isMinimized () const |
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bool | isModal () const |
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bool | isTopLevel () const |
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bool | isVisible () const |
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bool | isVisibleTo (const QWidget *parent) const |
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bool | isWindow () const |
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bool | isWindowModified () const |
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QLayout * | layout () const |
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Qt::LayoutDirection | layoutDirection () const |
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QLocale | locale () const |
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QPoint | mapFrom (const QWidget *parent, const QPoint &pos) const |
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QPoint | mapFromGlobal (const QPoint &pos) const |
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QPoint | mapFromParent (const QPoint &pos) const |
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QPoint | mapTo (const QWidget *parent, const QPoint &pos) const |
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QPoint | mapToGlobal (const QPoint &pos) const |
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QPoint | mapToParent (const QPoint &pos) const |
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QRegion | mask () const |
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int | maximumHeight () const |
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QSize | maximumSize () const |
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int | maximumWidth () const |
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int | minimumHeight () const |
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QSize | minimumSize () const |
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virtual QSize | minimumSizeHint () const |
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int | minimumWidth () const |
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void | move (const QPoint &point) |
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void | move (int x, int y) |
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QWidget * | nativeParentWidget () const |
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QWidget * | nextInFocusChain () const |
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QRect | normalGeometry () const |
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void | overrideWindowFlags (Qt::WindowFlags flags) |
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QPaintEngine * | paintEngine () const override |
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const QPalette & | palette () const |
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QWidget * | parentWidget () const |
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QPoint | pos () const |
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QWidget * | previousInFocusChain () const |
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QRect | rect () const |
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void | releaseKeyboard () |
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void | releaseMouse () |
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void | releaseShortcut (int id) |
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void | removeAction (QAction *action) |
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void | render (QPaintDevice *target, const QPoint &targetOffset=QPoint (), const QRegion &sourceRegion=QRegion (), RenderFlags renderFlags=RenderFlags (DrawWindowBackground|DrawChildren)) |
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void | render (QPainter *painter, const QPoint &targetOffset=QPoint (), const QRegion &sourceRegion=QRegion (), RenderFlags renderFlags=RenderFlags (DrawWindowBackground|DrawChildren)) |
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void | repaint (const QRect &rect) |
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void | repaint (const QRegion ®ion) |
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void | repaint (int x, int y, int w, int h) |
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void | resize (const QSize &size) |
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void | resize (int w, int h) |
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bool | restoreGeometry (const QByteArray &geometry) |
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QByteArray | saveGeometry () const |
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void | scroll (int dx, int dy) |
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void | scroll (int dx, int dy, const QRect &rect) |
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void | setAcceptDrops (bool on) |
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void | setAccessibleDescription (const QString &description) |
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void | setAccessibleName (const QString &name) |
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void | setAttribute (Qt::WidgetAttribute attribute, bool enable=true) |
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void | setAutoFillBackground (bool enable) |
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void | setBackgroundRole (QPalette::ColorRole role) |
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void | setBaseSize (const QSize &size) |
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void | setBaseSize (int basew, int baseh) |
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void | setContentsMargins (const QMargins &margins) |
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void | setContentsMargins (int left, int top, int right, int bottom) |
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void | setContextMenuPolicy (Qt::ContextMenuPolicy policy) |
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void | setCursor (const QCursor &cursor) |
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void | setEditFocus (bool enable) |
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void | setFixedHeight (int h) |
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void | setFixedSize (const QSize &size) |
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void | setFixedSize (int w, int h) |
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void | setFixedWidth (int w) |
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void | setFocus (Qt::FocusReason reason) |
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void | setFocusPolicy (Qt::FocusPolicy policy) |
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void | setFocusProxy (QWidget *widget) |
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void | setFont (const QFont &font) |
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void | setForegroundRole (QPalette::ColorRole role) |
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void | setGeometry (const QRect &rect) |
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void | setGeometry (int x, int y, int w, int h) |
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void | setGraphicsEffect (QGraphicsEffect *effect) |
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void | setInputMethodHints (Qt::InputMethodHints hints) |
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void | setLayout (QLayout *layout) |
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void | setLayoutDirection (Qt::LayoutDirection direction) |
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void | setLocale (const QLocale &locale) |
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void | setMask (const QBitmap &bitmap) |
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void | setMask (const QRegion ®ion) |
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void | setMaximumHeight (int maxh) |
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void | setMaximumSize (const QSize &size) |
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void | setMaximumSize (int maxw, int maxh) |
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void | setMaximumWidth (int maxw) |
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void | setMinimumHeight (int minh) |
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void | setMinimumSize (const QSize &size) |
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void | setMinimumSize (int minw, int minh) |
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void | setMinimumWidth (int minw) |
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void | setMouseTracking (bool enable) |
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void | setPalette (const QPalette &palette) |
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void | setParent (QWidget *parent) |
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void | setParent (QWidget *parent, Qt::WindowFlags flags) |
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void | setShortcutAutoRepeat (int id, bool enable=true) |
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void | setShortcutEnabled (int id, bool enable=true) |
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void | setSizeIncrement (const QSize &size) |
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void | setSizeIncrement (int w, int h) |
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void | setSizePolicy (QSizePolicy policy) |
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void | setSizePolicy (QSizePolicy::Policy horizontal, QSizePolicy::Policy vertical) |
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void | setStatusTip (const QString &data) |
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void | setStyle (QStyle *style) |
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void | setToolTip (const QString &data) |
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void | setToolTipDuration (int msec) |
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void | setUpdatesEnabled (bool enable) |
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void | setWhatsThis (const QString &str) |
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void | setWindowFilePath (const QString &filePath) |
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void | setWindowFlags (Qt::WindowFlags flags) |
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void | setWindowIcon (const QIcon &icon) |
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void | setWindowModality (Qt::WindowModality windowModality) |
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void | setWindowOpacity (qreal level) |
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void | setWindowRole (const QString &role) |
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void | setWindowState (Qt::WindowStates windowState) |
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QSize | size () const |
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QSize | sizeIncrement () const |
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QSizePolicy | sizePolicy () const |
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void | stackUnder (QWidget *widget) |
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QString | statusTip () const |
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QStyle * | style () const |
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QString | styleSheet () const |
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bool | testAttribute (Qt::WidgetAttribute attribute) const |
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QString | toolTip () const |
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int | toolTipDuration () const |
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QWidget * | topLevelWidget () const |
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bool | underMouse () const |
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void | ungrabGesture (Qt::GestureType gestureType) |
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void | unsetCursor () |
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void | unsetLayoutDirection () |
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void | unsetLocale () |
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void | update (const QRect &rect) |
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void | update (const QRegion ®ion) |
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void | update (int x, int y, int w, int h) |
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void | updateGeometry () |
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bool | updatesEnabled () const |
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QRegion | visibleRegion () const |
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QString | whatsThis () const |
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int | width () const |
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QWidget * | window () const |
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QString | windowFilePath () const |
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Qt::WindowFlags | windowFlags () const |
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QWindow * | windowHandle () const |
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QIcon | windowIcon () const |
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Qt::WindowModality | windowModality () const |
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qreal | windowOpacity () const |
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QString | windowRole () const |
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Qt::WindowStates | windowState () const |
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QString | windowTitle () const |
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Qt::WindowType | windowType () const |
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WId | winId () const |
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int | x () const |
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int | y () const |
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| QObject (QObject *parent=nullptr) |
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| ~QObject () |
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bool | blockSignals (bool block) |
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const QList< QObject * > & | children () const |
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bool | connect (const QObject *sender, const QString &signalMethod, const QString &location, const QString &slotMethod, Qt::ConnectionType type=Qt::AutoConnection) |
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bool | connect (const QObject *sender, const QString &signalMethod, const QString &slotMethod, Qt::ConnectionType type=Qt::AutoConnection) |
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bool | disconnect (const QObject *receiver, const QString &slotMethod=QString ()) const |
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bool | disconnect (const QString &signalMethod, const QString &location, const QObject *receiver=nullptr, const QString &slotMethod=QString ()) const |
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bool | disconnect (const QString &signalMethod=QString (), const QObject *receiver=nullptr, const QString &slotMethod=QString ()) const |
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void | dumpObjectInfo () |
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void | dumpObjectTree () |
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QList< QString > | dynamicPropertyNames () const |
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virtual bool | event (QEvent *event) |
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virtual bool | eventFilter (QObject *watched, QEvent *event) |
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template<typename T > |
T | findChild (const QString &childName=QString ()) const |
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template<class T > |
QList< T > | findChildren (const QRegularExpression ®Exp, Qt::FindChildOptions options=Qt::FindChildrenRecursively) const |
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template<class T > |
QList< T > | findChildren (const QString &childName=QString (), Qt::FindChildOptions options=Qt::FindChildrenRecursively) const |
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bool | inherits (const QString &className) const |
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void | installEventFilter (QObject *filterObj) |
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bool | isWidgetType () const |
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bool | isWindowType () const |
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void | killTimer (int id) |
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const QMetaObject * | metaObject () const |
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void | moveToThread (QThread *targetThread) |
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QString | objectName () const |
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QObject * | parent () const |
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template<class T = QVariant> |
T | property (const QString &name) const |
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void | removeEventFilter (QObject *obj) |
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void | setObjectName (const QString &name) |
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void | setParent (QObject *parent) |
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bool | setProperty (const QString &name, const QVariant &value) |
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bool | signalsBlocked () const |
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int | startTimer (int interval, Qt::TimerType timerType=Qt::CoarseTimer) |
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QThread * | thread () const |
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virtual | ~QPaintDevice () |
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int | colorCount () const |
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int | depth () const |
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int | devicePixelRatio () const |
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qreal | devicePixelRatioF () const |
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int | height () const |
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int | heightMM () const |
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int | logicalDpiX () const |
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int | logicalDpiY () const |
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bool | paintingActive () const |
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int | physicalDpiX () const |
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int | physicalDpiY () const |
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int | width () const |
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int | widthMM () const |
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using | RenderFlags = QFlags< RenderFlag > |
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enum | RenderFlag |
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enum | PaintDeviceMetric |
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static QWidget * | createWindowContainer (QWindow *window, QWidget *parent=nullptr, Qt::WindowFlags flags=Qt::EmptyFlag) |
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static QWidget * | find (WId id) |
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static QWidget * | keyboardGrabber () |
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static QWidget * | mouseGrabber () |
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static void | setTabOrder (QWidget *firstWidget, QWidget *secondWidget) |
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static bool | connect (const QObject *sender, const QMetaMethod &signalMethod, const QObject *receiver, const QMetaMethod &slotMethod, Qt::ConnectionType type=Qt::AutoConnection) |
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static bool | connect (const QObject *sender, const QString &signalMethod, const QObject *receiver, const QString &slotMethod, Qt::ConnectionType type=Qt::AutoConnection, const QString &location=QString ()) |
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static bool | connect (const QObject *sender, const QString &signalMethod, const QString &location, const QObject *receiver, const QString &slotMethod, Qt::ConnectionType type=Qt::AutoConnection) |
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template<class Sender , class SignalClass , class... SignalArgs, class Receiver , class SlotClass , class... SlotArgs, class SlotReturn > |
static bool | connect (const Sender *sender, void (SignalClass::*signalMethod)(SignalArgs...), const Receiver *receiver, SlotReturn (SlotClass::*slotMethod)(SlotArgs...), Qt::ConnectionType type=Qt::AutoConnection) |
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template<class Sender , class SignalClass , class... SignalArgs, class Receiver , class T > |
static bool | connect (const Sender *sender, void (SignalClass::*signalMethod)(SignalArgs...), const Receiver *receiver, T slotLambda, Qt::ConnectionType type=Qt::AutoConnection) |
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static bool | disconnect (const QObject *sender, const QMetaMethod &signalMethod, const QObject *receiver, const QMetaMethod &slotMethod) |
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static bool | disconnect (const QObject *sender, const QString &signalMethod, const QObject *receiver, const QString &slotMethod) |
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static bool | disconnect (const QObject *sender, const QString &signalMethod, const QString &location, const QObject *receiver, const QString &slotMethod) |
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static bool | disconnect (const QObject *sender, std::nullptr_t, const QObject *receiver, std::nullptr_t) |
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template<class Sender , class SignalClass , class... SignalArgs, class Receiver , class SlotClass , class... SlotArgs, class SlotReturn > |
static bool | disconnect (const Sender *sender, void (SignalClass::*signalMethod)(SignalArgs...), const Receiver *receiver, SlotReturn (SlotClass::*slotMethod)(SlotArgs...)) |
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template<class Sender , class SignalClass , class... SignalArgs, class Receiver > |
static bool | disconnect (const Sender *sender, void (SignalClass::*signalMethod)(SignalArgs...), const Receiver *receiver, std::nullptr_t slotMethod=nullptr) |
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template<class Sender , class SignalClass , class... SignalArgs, class Receiver , class T > |
static bool | disconnect (const Sender *sender, void (SignalClass::*signalMethod)(SignalArgs...), const Receiver *receiver, T slotMethod) |
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static QMetaObject & | staticMetaObject () |
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static QString | tr (const char *text, const char *comment=nullptr, std::optional< int > numArg=std::optional< int >()) |
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void | updateMicroFocus () |
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| QWidgetList |
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| WId |
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T | qobject_cast (QObject *object) |
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| QObjectList |
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The QWebView class provides a widget that is used to view and edit web documents. QWebView is the main widget component of the CsWebKit web browsing library. It can be used in various applications to display web content live from the Internet.
A web site can be loaded onto QWebView with the load() function. Like all CopperSpice widgets, the show() function must be invoked in order to display QWebView. The snippet below illustrates this:
view->
load(
QUrl(
"https://www.copperspice.com"));
Alternatively, setUrl() can also be used to load a web site. If you have the HTML content readily available, you can use setHtml() instead.
The loadStarted() signal is emitted when the view begins loading. The loadProgress() signal, on the other hand, is emitted whenever an element of the web view completes loading, such as an embedded image, a script, etc. Finally, the loadFinished() signal is emitted when the view has loaded completely. It's argument - either true
or false
- indicates load success or failure.
The page() function returns a pointer to the web page object. Refer to the "Elements of QWebView" for an explanation of how the web page is related to the view. To modify your web view's settings, you can access the QWebSettings object with the settings() function. With QWebSettings, you can change the default fonts, enable or disable features such as JavaScript and plugins.
The title of an HTML document can be accessed with the title() property. Additionally, a web site may also specify an icon, which can be accessed using the icon() property. If the title or the icon changes, the corresponding titleChanged() and iconChanged() signals will be emitted. The textSizeMultiplier() property can be used to change the overall size of the text displayed in the web view.
If you require a custom context menu, you can implement it by reimplementing contextMenuEvent() and populating your QMenu with the actions obtained from pageAction(). More functionality such as reloading the view, copying selected text to the clipboard, or pasting into the view, is also encapsulated within the QAction objects returned by pageAction(). These actions can be programmatically triggered using triggerPageAction(). Alternatively, the actions can be added to a toolbar or a menu directly. QWebView maintains the state of the returned actions but allows modification of action properties such as text or icon.
A QWebView can be printed onto a QPrinter using the print() function. This function is marked as a slot and can be conveniently connected to QPrintPreviewDialog's paintRequested() signal.
If you want to provide support for web sites that allow the user to open new windows, such as pop-up windows, you can subclass QWebView and reimplement the createWindow() function.
Elements of QWebView
QWebView consists of other objects such as QWebFrame and QWebPage. The flowchart below shows these elements are related.
- Note
- It is possible to use QWebPage and QWebFrame without using QWebView. Since CsWebKit depends on CsGui you must still use a QApplication instead of QCoreApplication.
- See also
- selectionChanged()