com.trolltech.qt.webkit
Class QWebPage

java.lang.Object
  extended by com.trolltech.qt.internal.QSignalEmitterInternal
      extended by com.trolltech.qt.QSignalEmitter
          extended by com.trolltech.qt.QtJambiObject
              extended by com.trolltech.qt.core.QObject
                  extended by com.trolltech.qt.webkit.QWebPage
All Implemented Interfaces:
QtJambiInterface

public class QWebPage
extends QObject

The QWebPage class provides an object to view and edit web documents. QWebPage holds a main frame responsible for web content, settings, the history of navigated links and actions. This class can be used, together with QWebFrame, to provide functionality like QWebView in a widget-less environment.

QWebPage's API is very similar to QWebView, as you are still provided with common functions like action() (known as pageAction() in QWebView), triggerAction(), findText() and settings(). More QWebView-like functions can be found in the main frame of QWebPage, obtained via QWebPage::mainFrame(). For example, the load(), setUrl() and setHtml() unctions for QWebPage can be accessed using QWebFrame.

The loadStarted() signal is emitted when the page begins to load.The loadProgress() signal, on the other hand, is emitted whenever an element of the web page completes loading, such as an embedded image, a script, etc. Finally, the loadFinished() signal is emitted when the page has loaded completely. Its argument, either true or false, indicates whether or not the load operation succeeded.

Using QWebPage in a Widget-less Environment

Before you begin painting a QWebPage object, you need to set the size of the viewport by calling setViewportSize(). Then, you invoke the main frame's render function (QWebFrame::render()). An example of this is shown in the code snippet below.

Suppose we have a Thumbnail class as follows:

class Thumbnailer extends QObject
{
    public Signal0 finished = new Signal0();

    public Thumbnailer(QUrl url) { ... }

    private void render(Boolean b) { ... }

    private QWebPage page;

}
The Thumbnail's constructor takes in a url. We connect our QWebPage object's loadFinished() signal to our private slot, render().
    public Thumbnailer(QUrl url)
    {
        page.mainFrame().load(url);
        page.loadFinished.connect(this, "render(Boolean)");
    }
The render() function shows how we can paint a thumbnail using a QWebPage object.
    void render(Boolean b)
    {
        page.setViewportSize(page.mainFrame().contentsSize());
        QImage image = new QImage(page.viewportSize(), QImage.Format.Format_ARGB32);
        QPainter painter = new QPainter(image);

        page.mainFrame().render(painter);
        painter.end();

        QImage thumbnail = image.scaled(400, 400);
        thumbnail.save("thumbnail.png");

        finished.emit();
    }
We begin by setting the viewportSize and then we instantiate a QImage object, image, with the same size as our viewportSize. This image is then sent as a parameter to painter. Next, we render the contents of the main frame and its subframes into painter. Finally, we save the scaled image.

See also:
QWebFrame.


Nested Class Summary
static class QWebPage.Extension
          This enum describes the types of extensions that the page can support.
static class QWebPage.FindFlag
          This enum describes the options available to QWebPage's findText() function.
static class QWebPage.FindFlags
           
static class QWebPage.LinkDelegationPolicy
          This enum defines the delegation policies a webpage can have when activating links and emitting the linkClicked() signal.
static class QWebPage.NavigationType
          This enum describes the types of navigation available when browsing through hyperlinked documents.
static class QWebPage.WebAction
          This enum describes the types of action which can be performed on the web page.
static class QWebPage.WebWindowType
           
 
Nested classes/interfaces inherited from class com.trolltech.qt.QSignalEmitter
QSignalEmitter.AbstractSignal, QSignalEmitter.PrivateSignal0, QSignalEmitter.PrivateSignal1, QSignalEmitter.PrivateSignal2, QSignalEmitter.PrivateSignal3, QSignalEmitter.PrivateSignal4, QSignalEmitter.PrivateSignal5, QSignalEmitter.PrivateSignal6, QSignalEmitter.PrivateSignal7, QSignalEmitter.PrivateSignal8, QSignalEmitter.PrivateSignal9, QSignalEmitter.Signal0, QSignalEmitter.Signal1, QSignalEmitter.Signal2, QSignalEmitter.Signal3, QSignalEmitter.Signal4, QSignalEmitter.Signal5, QSignalEmitter.Signal6, QSignalEmitter.Signal7, QSignalEmitter.Signal8, QSignalEmitter.Signal9
 
Nested classes/interfaces inherited from class com.trolltech.qt.internal.QSignalEmitterInternal
com.trolltech.qt.internal.QSignalEmitterInternal.AbstractSignalInternal
 
Field Summary
 QSignalEmitter.Signal0 contentsChanged
          This signal is emitted whenever the text in form elements changes as well as other editable content.
 QSignalEmitter.Signal2 databaseQuotaExceeded
          This signal takes 2 generic argument(s).
 QSignalEmitter.Signal1 downloadRequested
          This signal takes 1 generic argument(s).
 QSignalEmitter.Signal1 frameCreated
          This signal takes 1 generic argument(s).
 QSignalEmitter.Signal1 geometryChangeRequested
          This signal takes 1 generic argument(s).
 QSignalEmitter.Signal1 linkClicked
          This signal takes 1 generic argument(s).
 QSignalEmitter.Signal3 linkHovered
          This signal takes 3 generic argument(s).
 QSignalEmitter.Signal1 loadFinished
          This signal takes 1 generic argument(s).
 QSignalEmitter.Signal1 loadProgress
          This signal takes 1 generic argument(s).
 QSignalEmitter.Signal0 loadStarted
          This signal is emitted when a new load of the page is started.
 QSignalEmitter.Signal1 menuBarVisibilityChangeRequested
          This signal takes 1 generic argument(s).
 QSignalEmitter.Signal0 microFocusChanged
          This signal is emitted when for example the position of the cursor in an editable form element changes.
 QSignalEmitter.Signal1 printRequested
          This signal takes 1 generic argument(s).
 QSignalEmitter.Signal1 repaintRequested
          This signal takes 1 generic argument(s).
 QSignalEmitter.Signal1 restoreFrameStateRequested
          This signal takes 1 generic argument(s).
 QSignalEmitter.Signal2 saveFrameStateRequested
          This signal takes 2 generic argument(s).
 QSignalEmitter.Signal3 scrollRequested
          This signal takes 3 generic argument(s).
 QSignalEmitter.Signal0 selectionChanged
          This signal is emitted whenever the selection changes.
 QSignalEmitter.Signal1 statusBarMessage
          This signal takes 1 generic argument(s).
 QSignalEmitter.Signal1 statusBarVisibilityChangeRequested
          This signal takes 1 generic argument(s).
 QSignalEmitter.Signal1 toolBarVisibilityChangeRequested
          This signal takes 1 generic argument(s).
 QSignalEmitter.Signal1 unsupportedContent
          This signal takes 1 generic argument(s).
 QSignalEmitter.Signal0 windowCloseRequested
          This signal is emitted whenever the page requests the web browser window to be closed, for example through the JavaScript window.close() call.
 
Fields inherited from class com.trolltech.qt.internal.QSignalEmitterInternal
currentSender
 
Constructor Summary
QWebPage()
          Constructs an empty QWebView with parent parent.
QWebPage(QObject parent)
          Constructs an empty QWebView with parent parent.
 
Method Summary
protected  boolean acceptNavigationRequest(QWebFrame frame, QNetworkRequest request, QWebPage.NavigationType type)
          This function is called whenever WebKit requests to navigate frame to the resource specified by request by means of the specified navigation type type.
 QAction action(QWebPage.WebAction action)
          Returns a QAction for the specified WebAction action.
 long bytesReceived()
          Returns the number of bytes that were received from the network to render the current page.
protected  java.lang.String chooseFile(QWebFrame originatingFrame, java.lang.String oldFile)
          This function is called when the web content requests a file name, for example as a result of the user clicking on a "file upload" button in a HTML form.
protected  QObject createPlugin(java.lang.String classid, QUrl url, java.util.List paramNames, java.util.List paramValues)
          This function is called whenever WebKit encounters a HTML object element with type "application/x-qt-plugin".
 QMenu createStandardContextMenu()
          This function creates the standard context menu which is shown when the user clicks on the web page with the right mouse button.
protected  QWebPage createWindow(QWebPage.WebWindowType type)
          This function is called whenever WebKit wants to create a new window of the given type, for example when a JavaScript program requests to open a document in a new window.
 QWebFrame currentFrame()
          Returns the frame currently active.
 boolean findText(java.lang.String subString)
          Finds the next occurrence of the string, subString, in the page, using the given options.
 boolean findText(java.lang.String subString, QWebPage.FindFlag[] options)
           
 boolean findText(java.lang.String subString, QWebPage.FindFlags options)
          Finds the next occurrence of the string, subString, in the page, using the given options.
 boolean focusNextPrevChild(boolean next)
          Similar to QWidget.:focusNextPrevChild it focuses the next focusable web element if next is true; otherwise the previous element is focused.
 boolean forwardUnsupportedContent()
          This property holds whether QWebPage should forward unsupported content through the unsupportedContent signal.
 QWebHistory history()
          Returns a pointer to the view's history of navigated web pages.
 java.lang.Object inputMethodQuery(Qt.InputMethodQuery property)
          This method is used by the input method to query a set of properties of the page to be able to support complex input method operations as support for surrounding text and reconversions.
 boolean isContentEditable()
          This property holds whether the content in this QWebPage is editable or not.
 boolean isModified()
          This property holds whether the page contains unsubmitted form data.
protected  void javaScriptAlert(QWebFrame originatingFrame, java.lang.String msg)
          This function is called whenever a JavaScript program running inside frame calls the alert() function with the message msg.
protected  boolean javaScriptConfirm(QWebFrame originatingFrame, java.lang.String msg)
          This function is called whenever a JavaScript program running inside frame calls the confirm() function with the message, msg.
protected  void javaScriptConsoleMessage(java.lang.String message, int lineNumber, java.lang.String sourceID)
          This function is called whenever a JavaScript program tries to print a message to the web browser's console.
protected  java.lang.String javaScriptPrompt(QWebFrame originatingFrame, java.lang.String msg, java.lang.String defaultValue)
          This function is called whenever a JavaScript program running inside frame tries to prompt the user for input.
 QWebPage.LinkDelegationPolicy linkDelegationPolicy()
          This property holds how QWebPage should delegate the handling of links through the linkClicked() signal.
 QWebFrame mainFrame()
          Returns the main frame of the page.
 QNetworkAccessManager networkAccessManager()
          Returns the QNetworkAccessManager that is responsible for serving network requests for this QWebPage.
 QPalette palette()
          This property holds the page's palette.
 QWebPluginFactory pluginFactory()
          Returns the QWebPluginFactory that is responsible for creating plugins embedded into this QWebPage.
 java.lang.String selectedText()
          This property holds the text currently selected.
 void setContentEditable(boolean editable)
          This property holds whether the content in this QWebPage is editable or not.
 void setForwardUnsupportedContent(boolean forward)
          This property holds whether QWebPage should forward unsupported content through the unsupportedContent signal.
 void setLinkDelegationPolicy(QWebPage.LinkDelegationPolicy policy)
          This property holds how QWebPage should delegate the handling of links through the linkClicked() signal.
 void setNetworkAccessManager(QNetworkAccessManager manager)
          Sets the QNetworkAccessManagermanager responsible for serving network requests for this QWebPage.
 void setPalette(QPalette palette)
          This property holds the page's palette.
 void setPluginFactory(QWebPluginFactory factory)
          Sets the QWebPluginFactoryfactory responsible for creating plugins embedded into this QWebPage.
 QWebSettings settings()
          Returns a pointer to the page's settings object.
 void setView(QWidget view)
          Sets the view that is associated with the web page.
 void setViewportSize(QSize size)
          This property holds the size of the viewport.
 boolean supportsExtension(QWebPage.Extension extension)
          This virtual function returns true if the web page supports extension; otherwise false is returned.
 boolean swallowContextMenuEvent(QContextMenuEvent event)
          Filters the context menu event, event, through handlers for scrollbars and custom event handlers in the web page.
 long totalBytes()
          Returns the total number of bytes that were received from the network to render the current page, including extra content such as embedded images.
 void triggerAction(QWebPage.WebAction action)
          This function can be called to trigger the specified action.
 void triggerAction(QWebPage.WebAction action, boolean checked)
          This function can be called to trigger the specified action.
 QUndoStack undoStack()
          Returns a pointer to the undo stack used for editable content.
 void updatePositionDependentActions(QPoint pos)
          Updates the page's actions depending on the position pos.
protected  java.lang.String userAgentForUrl(QUrl url)
          This function is called when a user agent for HTTP requests is needed.
 QWidget view()
          Returns the view widget that is associated with the web page.
 QSize viewportSize()
          This property holds the size of the viewport.
 
Methods inherited from class com.trolltech.qt.core.QObject
childEvent, children, connectSlotsByName, customEvent, disposeLater, dumpObjectInfo, dumpObjectTree, dynamicPropertyNames, event, eventFilter, findChild, findChild, findChild, findChildren, findChildren, findChildren, findChildren, indexOfProperty, installEventFilter, isWidgetType, killTimer, moveToThread, objectName, parent, properties, property, removeEventFilter, setObjectName, setParent, setProperty, startTimer, timerEvent, toString, userProperty
 
Methods inherited from class com.trolltech.qt.QtJambiObject
dispose, disposed, equals, finalize, reassignNativeResources, tr, tr, tr
 
Methods inherited from class com.trolltech.qt.QSignalEmitter
blockSignals, disconnect, disconnect, signalsBlocked, signalSender, thread
 
Methods inherited from class com.trolltech.qt.internal.QSignalEmitterInternal
__qt_signalInitialization
 
Methods inherited from class java.lang.Object
clone, getClass, hashCode, notify, notifyAll, wait, wait, wait
 
Methods inherited from interface com.trolltech.qt.QtJambiInterface
disableGarbageCollection, nativeId, nativePointer, reenableGarbageCollection, setJavaOwnership
 

Field Detail

contentsChanged

public final QSignalEmitter.Signal0 contentsChanged
This signal is emitted whenever the text in form elements changes as well as other editable content.

See also:
contentEditable, QWebFrame::toHtml(), and QWebFrame::toPlainText().


databaseQuotaExceeded

public final QSignalEmitter.Signal2 databaseQuotaExceeded

This signal takes 2 generic argument(s). We list their type and the name they go by in the description of this signal. <com.trolltech.qt.webkit.QWebFrame(named: frame), java.lang.String(named: databaseName)>:

This signal is emitted whenever the web site shown in frame is asking to store data to the database databaseName and the quota allocated to that web site is exceeded.


downloadRequested

public final QSignalEmitter.Signal1 downloadRequested

This signal takes 1 generic argument(s). We list their type and the name they go by in the description of this signal. <com.trolltech.qt.network.QNetworkRequest(named: request)>:

This signal is emitted when the user decides to download a link. The url of the link as well as additional meta-information is contained in request.

See also:
unsupportedContent() .


frameCreated

public final QSignalEmitter.Signal1 frameCreated

This signal takes 1 generic argument(s). We list their type and the name they go by in the description of this signal. <com.trolltech.qt.webkit.QWebFrame(named: frame)>:

This signal is emitted whenever the page creates a new frame.


geometryChangeRequested

public final QSignalEmitter.Signal1 geometryChangeRequested

This signal takes 1 generic argument(s). We list their type and the name they go by in the description of this signal. <com.trolltech.qt.core.QRect(named: geom)>:

This signal is emitted whenever the document wants to change the position and size of the page to geom. This can happen for example through JavaScript.


linkClicked

public final QSignalEmitter.Signal1 linkClicked

This signal takes 1 generic argument(s). We list their type and the name they go by in the description of this signal. <com.trolltech.qt.core.QUrl(named: url)>:

This signal is emitted whenever the user clicks on a link and the page's linkDelegationPolicy property is set to delegate the link handling for the specified url.

By default no links are delegated and are handled by QWebPage instead.

See also:
linkHovered() .


linkHovered

public final QSignalEmitter.Signal3 linkHovered

This signal takes 3 generic argument(s). We list their type and the name they go by in the description of this signal. <java.lang.String(named: link), java.lang.String(named: title), java.lang.String(named: textContent)>:

This signal is emitted when the mouse is hovering over a link. The first parameter is the link url, the second is the link title if any, and third textContent is the text content. Method is emitter with both empty parameters when the mouse isn't hovering over any link element.

See also:
linkClicked() .


loadFinished

public final QSignalEmitter.Signal1 loadFinished

This signal takes 1 generic argument(s). We list their type and the name they go by in the description of this signal. <java.lang.Boolean(named: ok)>:

This signal is emitted when a load of the page is finished. ok will indicate whether the load was successful or any error occurred.

See also:
loadStarted() .


loadProgress

public final QSignalEmitter.Signal1 loadProgress

This signal takes 1 generic argument(s). We list their type and the name they go by in the description of this signal. <java.lang.Integer(named: progress)>:

This signal is emitted when the global progress status changes. The current value is provided by progress and scales from 0 to 100, which is the default range of QProgressBar. It accumulates changes from all the child frames.

See also:
bytesReceived().


loadStarted

public final QSignalEmitter.Signal0 loadStarted
This signal is emitted when a new load of the page is started.

See also:
loadFinished() .


menuBarVisibilityChangeRequested

public final QSignalEmitter.Signal1 menuBarVisibilityChangeRequested

This signal takes 1 generic argument(s). We list their type and the name they go by in the description of this signal. <java.lang.Boolean(named: visible)>:

This signal is emitted whenever the visibility of the menubar in a web browser window that hosts QWebPage should be changed to visible.


microFocusChanged

public final QSignalEmitter.Signal0 microFocusChanged
This signal is emitted when for example the position of the cursor in an editable form element changes. It is used inform input methods about the new on-screen position where the user is able to enter text. This signal is usually connected to QWidget's updateMicroFocus() slot.


printRequested

public final QSignalEmitter.Signal1 printRequested

This signal takes 1 generic argument(s). We list their type and the name they go by in the description of this signal. <com.trolltech.qt.webkit.QWebFrame(named: frame)>:

This signal is emitted whenever the page requests the web browser to print frame, for example through the JavaScript window. rint() call.

See also:
QWebFrame::print(), and QPrintPreviewDialog.


repaintRequested

public final QSignalEmitter.Signal1 repaintRequested

This signal takes 1 generic argument(s). We list their type and the name they go by in the description of this signal. <com.trolltech.qt.core.QRect(named: dirtyRect)>:

This signal is emitted whenever this QWebPage should be updated and no view was set. dirtyRect contains the area that needs to be updated. To paint the QWebPage get the mainFrame() and call the render(QPainter*, const QRegion&) method with the dirtyRect as the second parameter.

See also:
mainFrame(), and view().


restoreFrameStateRequested

public final QSignalEmitter.Signal1 restoreFrameStateRequested

This signal takes 1 generic argument(s). We list their type and the name they go by in the description of this signal. <com.trolltech.qt.webkit.QWebFrame(named: frame)>:

This signal is emitted when the load of frame is finished and the application may now update its state accordingly.


saveFrameStateRequested

public final QSignalEmitter.Signal2 saveFrameStateRequested

This signal takes 2 generic argument(s). We list their type and the name they go by in the description of this signal. <com.trolltech.qt.webkit.QWebFrame(named: frame), com.trolltech.qt.QNativePointer(named: item)>:

This signal is emitted shortly before the history of navigated pages in frame is changed, for example when navigating back in the history.

The provided QWebHistoryItem, item, holds the history entry of the frame before the change.

A potential use-case for this signal is to store custom data in the QWebHistoryItem associated to the frame, using QWebHistoryItem::setUserData().


scrollRequested

public final QSignalEmitter.Signal3 scrollRequested

This signal takes 3 generic argument(s). We list their type and the name they go by in the description of this signal. <java.lang.Integer(named: dx), java.lang.Integer(named: dy), com.trolltech.qt.core.QRect(named: rectToScroll)>:

This signal is emitted whenever the content given by rectToScroll needs to be scrolled dx and dy downwards and no view was set.

See also:
view().


selectionChanged

public final QSignalEmitter.Signal0 selectionChanged
This signal is emitted whenever the selection changes.

See also:
selectedText().


statusBarMessage

public final QSignalEmitter.Signal1 statusBarMessage

This signal takes 1 generic argument(s). We list their type and the name they go by in the description of this signal. <java.lang.String(named: text)>:

This signal is emitted when the statusbar text is changed by the page.


statusBarVisibilityChangeRequested

public final QSignalEmitter.Signal1 statusBarVisibilityChangeRequested

This signal takes 1 generic argument(s). We list their type and the name they go by in the description of this signal. <java.lang.Boolean(named: visible)>:

This signal is emitted whenever the visibility of the statusbar in a web browser window that hosts QWebPage should be changed to visible.


toolBarVisibilityChangeRequested

public final QSignalEmitter.Signal1 toolBarVisibilityChangeRequested

This signal takes 1 generic argument(s). We list their type and the name they go by in the description of this signal. <java.lang.Boolean(named: visible)>:

This signal is emitted whenever the visibility of the toolbar in a web browser window that hosts QWebPage should be changed to visible.


unsupportedContent

public final QSignalEmitter.Signal1 unsupportedContent

This signal takes 1 generic argument(s). We list their type and the name they go by in the description of this signal. <com.trolltech.qt.network.QNetworkReply(named: reply)>:

This signals is emitted when webkit cannot handle a link the user navigated to.

At signal emissions time the meta data of the QNetworkReplyreply is available.

Note: This signal is only emitted if the forwardUnsupportedContent property is set to true.

See also:
downloadRequested() .


windowCloseRequested

public final QSignalEmitter.Signal0 windowCloseRequested
This signal is emitted whenever the page requests the web browser window to be closed, for example through the JavaScript window.close() call.

Constructor Detail

QWebPage

public QWebPage()
Constructs an empty QWebView with parent parent.


QWebPage

public QWebPage(QObject parent)
Constructs an empty QWebView with parent parent.

Method Detail

action

public final QAction action(QWebPage.WebAction action)
Returns a QAction for the specified WebAction action.

The action is owned by the QWebPage but you can customize the look by changing its properties.

QWebPage also takes care of implementing the action, so that upon triggering the corresponding action is performed on the page.

See also:
triggerAction().


bytesReceived

public final long bytesReceived()
Returns the number of bytes that were received from the network to render the current page.

See also:
totalBytes().


createStandardContextMenu

public final QMenu createStandardContextMenu()
This function creates the standard context menu which is shown when the user clicks on the web page with the right mouse button. It is called from the default contextMenuEvent() handler. The popup menu's ownership is transferred to the caller.


currentFrame

public final QWebFrame currentFrame()
Returns the frame currently active.

See also:
mainFrame(), and frameCreated() .


findText

public final boolean findText(java.lang.String subString,
                              QWebPage.FindFlag[] options)

findText

public final boolean findText(java.lang.String subString)
Finds the next occurrence of the string, subString, in the page, using the given options. Returns true of subString was found and selects the match visually; otherwise returns false.


findText

public final boolean findText(java.lang.String subString,
                              QWebPage.FindFlags options)
Finds the next occurrence of the string, subString, in the page, using the given options. Returns true of subString was found and selects the match visually; otherwise returns false.


focusNextPrevChild

public final boolean focusNextPrevChild(boolean next)
Similar to QWidget.:focusNextPrevChild it focuses the next focusable web element if next is true; otherwise the previous element is focused.

Returns true if it can find a new focusable element, or false if it can't.


forwardUnsupportedContent

public final boolean forwardUnsupportedContent()
This property holds whether QWebPage should forward unsupported content through the unsupportedContent signal. If disabled the download of such content is aborted immediately.

By default unsupported content is not forwarded.


history

public final QWebHistory history()
Returns a pointer to the view's history of navigated web pages.


inputMethodQuery

public final java.lang.Object inputMethodQuery(Qt.InputMethodQuery property)
This method is used by the input method to query a set of properties of the page to be able to support complex input method operations as support for surrounding text and reconversions.

property specifies which property is queried.

See also:
QWidget::inputMethodEvent(), QInputMethodEvent, and QInputContext.


isContentEditable

public final boolean isContentEditable()
This property holds whether the content in this QWebPage is editable or not. If this property is enabled the contents of the page can be edited by the user through a visible cursor. If disabled (the default) only HTML elements in the web page with their contenteditable attribute set are editable.


isModified

public final boolean isModified()
This property holds whether the page contains unsubmitted form data. By default, this property is false.


linkDelegationPolicy

public final QWebPage.LinkDelegationPolicy linkDelegationPolicy()
This property holds how QWebPage should delegate the handling of links through the linkClicked() signal. The default is to delegate no links.


mainFrame

public final QWebFrame mainFrame()
Returns the main frame of the page.

The main frame provides access to the hierarchy of sub-frames and is also needed if you want to explicitly render a web page into a given painter.

See also:
currentFrame().


networkAccessManager

public final QNetworkAccessManager networkAccessManager()
Returns the QNetworkAccessManager that is responsible for serving network requests for this QWebPage.

See also:
setNetworkAccessManager().


palette

public final QPalette palette()
This property holds the page's palette. The base brush of the palette is used to draw the background of the main frame.

By default, this property contains the application's default palette.


pluginFactory

public final QWebPluginFactory pluginFactory()
Returns the QWebPluginFactory that is responsible for creating plugins embedded into this QWebPage. If no plugin factory is installed a null pointer is returned.

See also:
setPluginFactory().


selectedText

public final java.lang.String selectedText()
This property holds the text currently selected. By default, this property contains an empty string.

See also:
selectionChanged() .


setContentEditable

public final void setContentEditable(boolean editable)
This property holds whether the content in this QWebPage is editable or not. If this property is enabled the contents of the page can be edited by the user through a visible cursor. If disabled (the default) only HTML elements in the web page with their contenteditable attribute set are editable.


setForwardUnsupportedContent

public final void setForwardUnsupportedContent(boolean forward)
This property holds whether QWebPage should forward unsupported content through the unsupportedContent signal. If disabled the download of such content is aborted immediately.

By default unsupported content is not forwarded.


setLinkDelegationPolicy

public final void setLinkDelegationPolicy(QWebPage.LinkDelegationPolicy policy)
This property holds how QWebPage should delegate the handling of links through the linkClicked() signal. The default is to delegate no links.


setNetworkAccessManager

public final void setNetworkAccessManager(QNetworkAccessManager manager)
Sets the QNetworkAccessManagermanager responsible for serving network requests for this QWebPage.

See also:
networkAccessManager().


setPalette

public final void setPalette(QPalette palette)
This property holds the page's palette. The base brush of the palette is used to draw the background of the main frame.

By default, this property contains the application's default palette.


setPluginFactory

public final void setPluginFactory(QWebPluginFactory factory)
Sets the QWebPluginFactoryfactory responsible for creating plugins embedded into this QWebPage.

Note: The plugin factory is only used if the QWebSettings::PluginsEnabled attribute is enabled.

See also:
pluginFactory().


setView

public final void setView(QWidget view)
Sets the view that is associated with the web page.

See also:
view().


setViewportSize

public final void setViewportSize(QSize size)
This property holds the size of the viewport. The size affects for example the visibility of scrollbars if the document is larger than the viewport.

By default, for a newly-created Web page, this property contains a size with zero width and height.


settings

public final QWebSettings settings()
Returns a pointer to the page's settings object.

See also:
QWebSettings::globalSettings().


swallowContextMenuEvent

public final boolean swallowContextMenuEvent(QContextMenuEvent event)
Filters the context menu event, event, through handlers for scrollbars and custom event handlers in the web page. Returns true if the event was handled; otherwise false.

A web page may swallow a context menu event through a custom event handler, allowing for context menus to be implemented in HTML/JavaScript. This is used by Google Maps, for example.


totalBytes

public final long totalBytes()
Returns the total number of bytes that were received from the network to render the current page, including extra content such as embedded images.

See also:
bytesReceived().


undoStack

public final QUndoStack undoStack()
Returns a pointer to the undo stack used for editable content.


updatePositionDependentActions

public final void updatePositionDependentActions(QPoint pos)
Updates the page's actions depending on the position pos. For example if pos is over an image element the CopyImageToClipboard action is enabled.


view

public final QWidget view()
Returns the view widget that is associated with the web page.

See also:
setView().


viewportSize

public final QSize viewportSize()
This property holds the size of the viewport. The size affects for example the visibility of scrollbars if the document is larger than the viewport.

By default, for a newly-created Web page, this property contains a size with zero width and height.


acceptNavigationRequest

protected boolean acceptNavigationRequest(QWebFrame frame,
                                          QNetworkRequest request,
                                          QWebPage.NavigationType type)
This function is called whenever WebKit requests to navigate frame to the resource specified by request by means of the specified navigation type type.

The default implementation interprets the page's linkDelegationPolicy and emits linkClicked accordingly or returns true to let QWebPage handle the navigation itself.


chooseFile

protected java.lang.String chooseFile(QWebFrame originatingFrame,
                                      java.lang.String oldFile)
This function is called when the web content requests a file name, for example as a result of the user clicking on a "file upload" button in a HTML form.

A suggested filename may be provided in suggestedFile. The frame originating the request is provided as parentFrame.


createPlugin

protected QObject createPlugin(java.lang.String classid,
                               QUrl url,
                               java.util.List paramNames,
                               java.util.List paramValues)
This function is called whenever WebKit encounters a HTML object element with type "application/x-qt-plugin". The classid, url, paramNames and paramValues correspond to the HTML object element attributes and child elements to configure the embeddable object.


createWindow

protected QWebPage createWindow(QWebPage.WebWindowType type)
This function is called whenever WebKit wants to create a new window of the given type, for example when a JavaScript program requests to open a document in a new window.

If the new window can be created, the new window's QWebPage is returned; otherwise a null pointer is returned.

If the view associated with the web page is a QWebView object, then the default implementation forwards the request to QWebView's createWindow() function; otherwise it returns a null pointer.

See also:
acceptNavigationRequest().


javaScriptAlert

protected void javaScriptAlert(QWebFrame originatingFrame,
                               java.lang.String msg)
This function is called whenever a JavaScript program running inside frame calls the alert() function with the message msg.

The default implementation shows the message, msg, with QMessageBox::information.


javaScriptConfirm

protected boolean javaScriptConfirm(QWebFrame originatingFrame,
                                    java.lang.String msg)
This function is called whenever a JavaScript program running inside frame calls the confirm() function with the message, msg. Returns true if the user confirms the message; otherwise returns false.

The default implementation executes the query using QMessageBox::information with QMessageBox::Yes and QMessageBox::No buttons.


javaScriptConsoleMessage

protected void javaScriptConsoleMessage(java.lang.String message,
                                        int lineNumber,
                                        java.lang.String sourceID)
This function is called whenever a JavaScript program tries to print a message to the web browser's console.

For example in case of evaluation errors the source URL may be provided in sourceID as well as the lineNumber.

The default implementation prints nothing.


supportsExtension

public boolean supportsExtension(QWebPage.Extension extension)
This virtual function returns true if the web page supports extension; otherwise false is returned.

See also:
extension().


triggerAction

public final void triggerAction(QWebPage.WebAction action)
This function can be called to trigger the specified action. It is also called by QtWebKit if the user triggers the action, for example through a context menu item.

If action is a checkable action then checked specified whether the action is toggled or not.

See also:
action().


triggerAction

public void triggerAction(QWebPage.WebAction action,
                          boolean checked)
This function can be called to trigger the specified action. It is also called by QtWebKit if the user triggers the action, for example through a context menu item.

If action is a checkable action then checked specified whether the action is toggled or not.

See also:
action().


userAgentForUrl

protected java.lang.String userAgentForUrl(QUrl url)
This function is called when a user agent for HTTP requests is needed. You can reimplement this function to dynamically return different user agents for different URLs, based on the url parameter.

The default implementation returns the following value:

"Mozilla/5.0 (%Platform%; %Security%; %Subplatform%; %Locale%) AppleWebKit/%WebKitVersion% (KHTML, like Gecko, Safari/419.3) %AppVersion"

In this string the following values are replaced at run-time:


javaScriptPrompt

protected java.lang.String javaScriptPrompt(QWebFrame originatingFrame,
                                            java.lang.String msg,
                                            java.lang.String defaultValue)
This function is called whenever a JavaScript program running inside frame tries to prompt the user for input. The program may provide an optional message, msg, as well as a default value for the input in defaultValue.

If the prompt was cancelled by the user the implementation should return false; otherwise the result should be written to result and true should be returned.

The default implementation uses QInputDialog::getText.