Represents the CEF browser view. More...

#include <QCefView.h>

Public Types
enum	CefWindowOpenDisposition
	Represents the CEF pop-up windows open disposition. More...

Signals
void	loadingStateChanged (const int &browserId, bool isLoading, bool canGoBack, bool canGoForward)
	Gets called on loading state changed.

void	loadStart (const int &browserId, const QString &frameId, bool isMainFrame, int transitionType)
	Gets called on loading starts.

void	loadEnd (const int &browserId, const QString &frameId, bool isMainFrame, int httpStatusCode)
	Gets called on loading ends.

void	loadError (const int &browserId, const QString &frameId, bool isMainFrame, int errorCode, const QString &errorMsg, const QString &failedUrl)
	Gets called on loading failed due to error.

void	draggableRegionChanged (const QRegion &draggableRegion, const QRegion &nonDraggableRegion)
	Gets called on draggable region changed.

void	addressChanged (const QString &frameId, const QString &url)
	Gets called on the address changed.

void	titleChanged (const QString &title)
	Gets called on title changed.

void	faviconURLChanged (const QStringList &urls)
	Gets called on favicon url changed.

void	fullscreenModeChanged (bool fullscreen)
	Gets called on fullscreen mode changed.

void	statusMessage (const QString &message)
	Gets called on status message changed.

void	consoleMessage (const QString &message, int level)
	Gets called on console message from the web content.

void	loadingProgressChanged (double progress)
	Gets called on loading progress changed.

void	cefUrlRequest (const int &browserId, const QString &frameId, const QString &url)
	Gets called on built-in scheme URL access.

void	cefQueryRequest (const int &browserId, const QString &frameId, const QCefQuery &query)
	Gets called on new QCefQuery request.

void	invokeMethod (const int &browserId, const QString &frameId, const QString &method, const QVariantList &arguments)
	Gets called on invoking method request from web content(Javascript)

void	reportJavascriptResult (const int &browserId, const QString &frameId, const QString &context, const QVariant &result)
	Gets called on the result of the javascript executed with executeJavascriptWithResult returned.

void	nativeBrowserCreated (QWindow *window)
	Gets called after the native browser window created. This slot does not work for OSR mode.

Public Member Functions
	QCefView (const QString &url, const QCefSetting setting, QWidget parent=nullptr, Qt::WindowFlags f=Qt::WindowFlags())
	Constructs a QCefView instance.

	QCefView (QWidget *parent=nullptr, Qt::WindowFlags f=Qt::WindowFlags())
	Constructs a QCefView instance.

	~QCefView ()
	Destructs the QCefView instance.

void	addLocalFolderResource (const QString &path, const QString &url, int priority=0)
	Adds a url mapping item with local web resource directory.

void	addArchiveResource (const QString &path, const QString &url, const QString &password="", int priority=0)
	Adds a url mapping item with local archive (.zip) file which contains the web resource.

int	browserId ()
	Gets the browser id.

void	navigateToString (const QString &content)
	Navigates to the content.

void	navigateToUrl (const QString &url)
	Navigates to the URL.

bool	browserCanGoBack ()
	Checks whether the browser can go back.

bool	browserCanGoForward ()
	Checks whether the browser can go forward.

void	browserGoBack ()
	Requires the browser to go back.

void	browserGoForward ()
	Requires the browser to go forward.

bool	browserIsLoading ()
	Checks whether the browser is loading.

void	browserReload ()
	Requires the browser to reload.

void	browserStopLoad ()
	Requires the browser to stop load.

bool	triggerEvent (const QCefEvent &event)
	Triggers the event for main frame.

bool	triggerEvent (const QCefEvent &event, const QString &frameId)
	Triggers the event for specified frame.

bool	broadcastEvent (const QCefEvent &event)
	Broad cast the event for all frames.

bool	responseQCefQuery (const QCefQuery &query)
	Response the QCefQuery request.

bool	executeJavascript (const QString &frameId, const QString &code, const QString &url)
	Executes javascript code in specified frame, this method does not report the result of the javascript. To get the result of the javascript execution use executeJavascriptWithResult

bool	executeJavascriptWithResult (const QString &frameId, const QString &code, const QString &url, const QString &context)
	Executes javascript code in specified frame and the result will be reported through reportJavascriptResult signal.

bool	setPreference (const QString &name, const QVariant &value, const QString &error)
	Sets the preference for this browser.

void	setOSRFrameRate (int fps)
	Sets the frame rate for OSR (Off-Screen Rendering).

bool	hasDevTools ()
	Detects whether this browser has a devtools opened.

void	showDevTools ()
	Opens the devtools dialog.

void	closeDevTools ()
	Closes the devtools dialog.

void	setAllowDrag (bool allow)
	Sets whether dragging is allowed.

bool	allowDrag () const
	Indicates whether drag operations are allowed.

void	setZoomLevel (double level)
	Sets zoom level.

double	zoomLevel ()
	Get the zoom level value.

QVariant	inputMethodQuery (Qt::InputMethodQuery query) const override
	Please refer to QWidget::inputMethodQuery.

Static Public Attributes
static const QString	MainFrameID
	The main frame identity.

static const QString	AllFrameID
	The identifier for all frames.

Protected Member Functions
virtual QCefView *	onNewBrowser (const QString &sourceFrameId, const QString &url, const QString &name, QCefView::CefWindowOpenDisposition targetDisposition, QRect &rect, QCefSetting &settings)
	Gets called before a new browser created (only for browser created by non-JavaScript)

virtual bool	onNewPopup (const QString &frameId, const QString &targetUrl, QString &targetFrameName, QCefView::CefWindowOpenDisposition targetDisposition, QRect &rect, QCefSetting &settings, bool &disableJavascriptAccess)
	Gets called before the popup browser created (only for browser created by JavaScript)

virtual void	onNewDownloadItem (const QSharedPointer< QCefDownloadItem > &item, const QString &suggestedName)
	Gets called on new download item was required. Keep reference to the download item and call QCefDownloadItem::start method to allow and start the download, Ignore the download item to disallow the download.

virtual void	onUpdateDownloadItem (const QSharedPointer< QCefDownloadItem > &item)
	Gets called on download item updated. To get this method called QCefDownloadItem::start method must be called in newDownloadItem method.

virtual bool	onRequestCloseFromWeb ()
	Gets called on close request from web.

QPaintEngine *	paintEngine () const override
	Please refer to QWidget::paintEngine.

void	paintEvent (QPaintEvent *event) override
	Please refer to QWidget::paintEvent.

bool	event (QEvent *event) override

Detailed Description

Represents the CEF browser view.

Member Enumeration Documentation

◆ CefWindowOpenDisposition

enum QCefView::CefWindowOpenDisposition

Represents the CEF pop-up windows open disposition.

Enumerator
CefWindowOpenDispositionUnknown
CefWindowOpenDispositionCurrentTab
CefWindowOpenDispositionSingletonTab
CefWindowOpenDispositionNewForeGroundTab
CefWindowOpenDispositionNewBackgroundTab
CefWindowOpenDispositionNewPopup
CefWindowOpenDispositionNewWindow
CefWindowOpenDispositionSaveToDisk
CefWindowOpenDispositionOffTheRecord
CefWindowOpenDispositionIgnoreAction

Constructor & Destructor Documentation

◆ QCefView() [1/2]

QCefView::QCefView	(	const QString &	url,
		const QCefSetting *	setting,
		QWidget *	parent = nullptr,
		Qt::WindowFlags	f = Qt::WindowFlags() )

Constructs a QCefView instance.

Parameters

url	The target url
setting	The QCefSetting instance
parent	The parent
f	The Qt WindowFlags

◆ QCefView() [2/2]

QCefView::QCefView	(	QWidget *	parent = nullptr,
		Qt::WindowFlags	f = Qt::WindowFlags() )

Constructs a QCefView instance.

Parameters

parent	The parent
f	The Qt WindowFlags

◆ ~QCefView()

QCefView::~QCefView ( )

Destructs the QCefView instance.

Member Function Documentation

◆ addLocalFolderResource()

void QCefView::addLocalFolderResource	(	const QString &	path,
		const QString &	url,
		int	priority = 0 )

Adds a url mapping item with local web resource directory.

Parameters

path	The path to the local resource directory
url	The url to be mapped to
priority	The priority

◆ addArchiveResource()

void QCefView::addArchiveResource	(	const QString &	path,
		const QString &	url,
		const QString &	password = "",
		int	priority = 0 )

Adds a url mapping item with local archive (.zip) file which contains the web resource.

Parameters

path	The path to the local archive file
url	The url to be mapped to
password	The password of the archive
priority	The priority

◆ browserId()

int QCefView::browserId ( )

Gets the browser id.

Returns: The browser id

◆ navigateToString()

void QCefView::navigateToString ( const QString & content )

Navigates to the content.

Parameters

content The content

◆ navigateToUrl()

void QCefView::navigateToUrl ( const QString & url )

Navigates to the URL.

Parameters

url The url

◆ browserCanGoBack()

bool QCefView::browserCanGoBack ( )

Checks whether the browser can go back.

Returns: True if can; otherwise false

◆ browserCanGoForward()

bool QCefView::browserCanGoForward ( )

Checks whether the browser can go forward.

Returns: True if can; otherwise false

◆ browserGoBack()

void QCefView::browserGoBack ( )

Requires the browser to go back.

◆ browserGoForward()

void QCefView::browserGoForward ( )

Requires the browser to go forward.

◆ browserIsLoading()

bool QCefView::browserIsLoading ( )

Checks whether the browser is loading.

Returns: True if it is loading; otherwise false

◆ browserReload()

void QCefView::browserReload ( )

Requires the browser to reload.

◆ browserStopLoad()

void QCefView::browserStopLoad ( )

Requires the browser to stop load.

◆ triggerEvent() [1/2]

bool QCefView::triggerEvent ( const QCefEvent & event )

Triggers the event for main frame.

Parameters

event The QCefEvent instance

Returns: True on successful; otherwise false

◆ triggerEvent() [2/2]

bool QCefView::triggerEvent	(	const QCefEvent &	event,
		const QString &	frameId )

Triggers the event for specified frame.

Parameters

event	The QCefEvent instance
frameId	The frame id

Returns: True on successful; otherwise false

◆ broadcastEvent()

bool QCefView::broadcastEvent ( const QCefEvent & event )

Broad cast the event for all frames.

Parameters

event The QCefEvent instance

Returns: True on successful; otherwise false

◆ responseQCefQuery()

bool QCefView::responseQCefQuery ( const QCefQuery & query )

Response the QCefQuery request.

Parameters

query The query instance

Returns: True on successful; otherwise false

◆ executeJavascript()

bool QCefView::executeJavascript	(	const QString &	frameId,
		const QString &	code,
		const QString &	url )

Executes javascript code in specified frame, this method does not report the result of the javascript. To get the result of the javascript execution use executeJavascriptWithResult

Parameters

frameId	The frame id
code	The javascript code
url	The URL where the script in question can be found, if any. The renderer may request this URL to show the developer the source of the error

Returns: True on successful; otherwise false

◆ executeJavascriptWithResult()

bool QCefView::executeJavascriptWithResult	(	const QString &	frameId,
		const QString &	code,
		const QString &	url,
		const QString &	context )

Executes javascript code in specified frame and the result will be reported through reportJavascriptResult signal.

Parameters

frameId	The frame id
code	The javascript code
url	The URL where the script in question can be found, if any. The renderer may request this URL to show the developer the source of the error
context	The context used to identify the one execution

Returns: True on successful; otherwise false

◆ setPreference()

bool QCefView::setPreference	(	const QString &	name,
		const QVariant &	value,
		const QString &	error )

Sets the preference for this browser.

Parameters

name	The preference name
value	The preference value, if this value is QVariant::UnknownType or QVariant::Invalid, the preference will be restored to default value
error	The error message populated on failure

Returns: True on successful; otherwise false

◆ setOSRFrameRate()

void QCefView::setOSRFrameRate ( int fps )

Sets the frame rate for OSR (Off-Screen Rendering).

Parameters

fps	The desired frame rate in frames per second.

◆ hasDevTools()

bool QCefView::hasDevTools ( )

Detects whether this browser has a devtools opened.

Returns: True if opend already; otherwise false

◆ showDevTools()

void QCefView::showDevTools ( )

Opens the devtools dialog.

◆ closeDevTools()

void QCefView::closeDevTools ( )

Closes the devtools dialog.

◆ setAllowDrag()

void QCefView::setAllowDrag ( bool allow )

Sets whether dragging is allowed.

Parameters

allow True to allow dragging; false to disable it.

◆ allowDrag()

bool QCefView::allowDrag ( ) const

Indicates whether drag operations are allowed.

Returns: true if drag operations are permitted; otherwise, false.

◆ setZoomLevel()

void QCefView::setZoomLevel ( double level )

Sets zoom level.

Parameters

level The zoom level value.

◆ zoomLevel()

double QCefView::zoomLevel ( )

Get the zoom level value.

Returns: the zoom level value.

◆ loadingStateChanged

void QCefView::loadingStateChanged	(	const int &	browserId,
		bool	isLoading,
		bool	canGoBack,
		bool	canGoForward )

signal

Gets called on loading state changed.

Parameters

browserId	Indicates the browser id
isLoading	Indicates the browser is loading
canGoBack	Indicates the browser can go back
canGoForward	Indicates the browser can go forward

◆ loadStart

void QCefView::loadStart	(	const int &	browserId,
		const QString &	frameId,
		bool	isMainFrame,
		int	transitionType )

signal

Gets called on loading starts.

Parameters

browserId	Indicates the browser id
frameId	Indicates the frame id
isMainFrame	Indicates the whether this is the main frame
transitionType	transition type

◆ loadEnd

void QCefView::loadEnd	(	const int &	browserId,
		const QString &	frameId,
		bool	isMainFrame,
		int	httpStatusCode )

signal

Gets called on loading ends.

Parameters

browserId	Indicates the browser id
frameId	Indicates the frame id
isMainFrame	Indicates the whether this is the main frame
httpStatusCode	The HTTP status code

◆ loadError

void QCefView::loadError	(	const int &	browserId,
		const QString &	frameId,
		bool	isMainFrame,
		int	errorCode,
		const QString &	errorMsg,
		const QString &	failedUrl )

signal

Gets called on loading failed due to error.

Parameters

browserId	Indicates the browser id
frameId	Indicates the frame id
isMainFrame	Indicates the whether this is the main frame
errorCode	The error code
errorMsg	The error message
failedUrl	The url caused the failure

◆ draggableRegionChanged

void QCefView::draggableRegionChanged	(	const QRegion &	draggableRegion,
		const QRegion &	nonDraggableRegion )

signal

Gets called on draggable region changed.

Parameters

draggableRegion	The new draggable region
nonDraggableRegion	The new non-draggable region

◆ addressChanged

void QCefView::addressChanged	(	const QString &	frameId,
		const QString &	url )

signal

Gets called on the address changed.

Parameters

frameId	The frame id
url	The address

◆ titleChanged

void QCefView::titleChanged ( const QString & title )

signal

Gets called on title changed.

Parameters

title The title

◆ faviconURLChanged

void QCefView::faviconURLChanged ( const QStringList & urls )

signal

Gets called on favicon url changed.

Parameters

urls The urls

◆ fullscreenModeChanged

void QCefView::fullscreenModeChanged ( bool fullscreen )

signal

Gets called on fullscreen mode changed.

Parameters

fullscreen The current fullscreen mode

◆ statusMessage

void QCefView::statusMessage ( const QString & message )

signal

Gets called on status message changed.

Parameters

message The status message

◆ consoleMessage

void QCefView::consoleMessage	(	const QString &	message,
		int	level )

signal

Gets called on console message from the web content.

Parameters

message	The message
level	The level

◆ loadingProgressChanged

void QCefView::loadingProgressChanged ( double progress )

signal

Gets called on loading progress changed.

Parameters

progress Current progress

◆ cefUrlRequest

void QCefView::cefUrlRequest	(	const int &	browserId,
		const QString &	frameId,
		const QString &	url )

signal

Gets called on built-in scheme URL access.

Parameters

browserId	The browser id
frameId	The frame id
url	The full url

◆ cefQueryRequest

void QCefView::cefQueryRequest	(	const int &	browserId,
		const QString &	frameId,
		const QCefQuery &	query )

signal

Gets called on new QCefQuery request.

Parameters

browserId	The browser id
frameId	The frame id
query	The query request

◆ invokeMethod

void QCefView::invokeMethod	(	const int &	browserId,
		const QString &	frameId,
		const QString &	method,
		const QVariantList &	arguments )

signal

Gets called on invoking method request from web content(Javascript)

Parameters

browserId	The browser id
frameId	The frame id
method	The method name
arguments	The arguments list

◆ reportJavascriptResult

void QCefView::reportJavascriptResult	(	const int &	browserId,
		const QString &	frameId,
		const QString &	context,
		const QVariant &	result )

signal

Gets called on the result of the javascript executed with executeJavascriptWithResult returned.

Parameters

browserId	The browser id
frameId	The frame id
context	The context
result	The result

◆ nativeBrowserCreated

void QCefView::nativeBrowserCreated ( QWindow * window )

signal

Gets called after the native browser window created. This slot does not work for OSR mode.

Parameters

window The native browser windows

◆ onNewBrowser()

virtual QCefView * QCefView::onNewBrowser	(	const QString &	sourceFrameId,
		const QString &	url,
		const QString &	name,
		QCefView::CefWindowOpenDisposition	targetDisposition,
		QRect &	rect,
		QCefSetting &	settings )

protectedvirtual

Gets called before a new browser created (only for browser created by non-JavaScript)

Parameters

sourceFrameId	The source frame id
url	The target URL
name	The target name
targetDisposition	Target window open method
rect	Rect to be used for the popup
settings	Settings to be used for the popup

Returns

True to cancel the popup; false to allow

◆ onNewPopup()

virtual bool QCefView::onNewPopup	(	const QString &	frameId,
		const QString &	targetUrl,
		QString &	targetFrameName,
		QCefView::CefWindowOpenDisposition	targetDisposition,
		QRect &	rect,
		QCefSetting &	settings,
		bool &	disableJavascriptAccess )

protectedvirtual

Gets called before the popup browser created (only for browser created by JavaScript)

Parameters

frameId	The source frame id
targetUrl	The target URL
targetFrameName	The target name
targetDisposition	Target window open method
rect	Rect to be used for the popup
settings	Settings to be used for the popup
disableJavascriptAccess	The output value to receive the Javascript access switch

Returns: True to cancel the popup; false to allow

◆ onNewDownloadItem()

virtual void QCefView::onNewDownloadItem	(	const QSharedPointer< QCefDownloadItem > &	item,
		const QString &	suggestedName )

protectedvirtual

Gets called on new download item was required. Keep reference to the download item and call QCefDownloadItem::start method to allow and start the download, Ignore the download item to disallow the download.

Parameters

item	The new download item
suggestedName	The new suggested name

◆ onUpdateDownloadItem()

virtual void QCefView::onUpdateDownloadItem ( const QSharedPointer< QCefDownloadItem > & item )

protectedvirtual

Gets called on download item updated. To get this method called QCefDownloadItem::start method must be called in newDownloadItem method.

Parameters

item	The download item

◆ onRequestCloseFromWeb()

virtual bool QCefView::onRequestCloseFromWeb ( )

protectedvirtual

Gets called on close request from web.

Returns: True to allow the close, false to cancel the close

◆ inputMethodQuery()

QVariant QCefView::inputMethodQuery ( Qt::InputMethodQuery query ) const

override

Please refer to QWidget::inputMethodQuery.

◆ paintEngine()

QPaintEngine * QCefView::paintEngine ( ) const

overrideprotected

Please refer to QWidget::paintEngine.

◆ paintEvent()

void QCefView::paintEvent ( QPaintEvent * event )

overrideprotected

Please refer to QWidget::paintEvent.

Parameters

event

◆ event()

bool QCefView::event ( QEvent * event )

overrideprotected

Parameters

event

Returns

Member Data Documentation

◆ MainFrameID

const QString QCefView::MainFrameID

static

The main frame identity.

◆ AllFrameID

const QString QCefView::AllFrameID

static

The identifier for all frames.

Public Types

Signals

Public Member Functions

Static Public Attributes

Protected Member Functions

Detailed Description

Member Enumeration Documentation

◆ CefWindowOpenDisposition

Constructor & Destructor Documentation

◆ QCefView() [1/2]

◆ QCefView() [2/2]

◆ ~QCefView()

Member Function Documentation

◆ addLocalFolderResource()

◆ addArchiveResource()

◆ browserId()

◆ navigateToString()

◆ navigateToUrl()

◆ browserCanGoBack()

◆ browserCanGoForward()

◆ browserGoBack()

◆ browserGoForward()

◆ browserIsLoading()

◆ browserReload()

◆ browserStopLoad()

◆ triggerEvent() [1/2]

◆ triggerEvent() [2/2]

◆ broadcastEvent()

◆ responseQCefQuery()

◆ executeJavascript()

◆ executeJavascriptWithResult()

◆ setPreference()

◆ setOSRFrameRate()

◆ hasDevTools()

◆ showDevTools()

◆ closeDevTools()

◆ setAllowDrag()

◆ allowDrag()

◆ setZoomLevel()

◆ zoomLevel()

◆ loadingStateChanged

◆ loadStart

◆ loadEnd

◆ loadError

◆ draggableRegionChanged

◆ addressChanged

◆ titleChanged

◆ faviconURLChanged

◆ fullscreenModeChanged

◆ statusMessage

◆ consoleMessage

◆ loadingProgressChanged

◆ cefUrlRequest

◆ cefQueryRequest

◆ invokeMethod

◆ reportJavascriptResult

◆ nativeBrowserCreated

◆ onNewBrowser()

◆ onNewPopup()

◆ onNewDownloadItem()

◆ onUpdateDownloadItem()

◆ onRequestCloseFromWeb()

◆ inputMethodQuery()

◆ paintEngine()

◆ paintEvent()

◆ event()

Member Data Documentation

◆ MainFrameID

◆ AllFrameID