MeVisLab Scripting Reference
MLABWebEngineViewControl Class Reference

#include <mlabWebEngineViewControl.h>

Inherits MLABSimpleWidgetControl.

Direct QtWebEngine access

void setUrl (const QUrl &url)
 
void setUrlFromFileName (const QString &absoluteFileName)
 
void setUrlFromString (const QString &urlString)
 
void setHtmlFromString (const QString &html, const QUrl &baseUrl=QUrl())
 
QString selectedText ()
 
QWebEnginePage * webPage ()
 
void setWebPage (QWebEnginePage *page)
 
QWebEngineView * webView ()
 
void addObjectToWebChannel (const QString &name, QObject *object)
 
void removeObjectFromWebChannel (QObject *object)
 
void runJavaScript (const QString &script)
 
void runJavaScript (const QString &script, const QVariant &resultCallback)
 
void openDevTools ()
 
void setPrintingEnabled (bool enabled)
 
bool isPrintingEnabled () const
 
void printPage (QPrinter *printer, const QVariant &resultCallback)
 
bool showPrintDialog ()
 
void showFindTool ()
 
void loadStarted ()
 
void loadProgress (float progress)
 
void loadFinished (bool success)
 
void linkClicked (const QUrl &)
 
void selectionChanged ()
 
void urlChanged (const QUrl &)
 

Additional Inherited Members

- Public Types inherited from MLABWidgetControl
enum  TitleType
 
- Public Slots inherited from MLABWidgetControl
void adjustSize ()
 
virtual void setEnabled (bool flag)
 
virtual void setVisible (bool flag)
 
virtual bool isVisible ()
 
virtual void setFocus ()
 
virtual bool hasFocus ()
 
virtual void setToolTip (const QString &string)
 
virtual void setWhatsThis (const QString &string)
 
void displayWhatsThis ()
 
void displayWhatsThis (const QString &text)
 
virtual void setTitle (const QString &)
 
QWidget * widget ()
 
QLayout * layout ()
 
virtual QString windowHandle ()
 
virtual bool createScreenshot (const QString &filename, bool grabFromScreen=true, bool scaleToLowRes=false)
 
bool isReloadable () const
 
void reload (MLABTree *tree)
 
QString createGlobalScreenshot ()
 
QString applicationName ()
 
QSize size ()
 
int width ()
 
int height ()
 
int minWidth ()
 
int minHeight ()
 
int maxWidth ()
 
int maxHeight ()
 
virtual void setMinWidth (int s)
 
virtual void setMinHeight (int s)
 
void setMaxWidth (int s)
 
void setMaxHeight (int s)
 
QSize sizeHint ()
 
QSize minSize ()
 
QSize maxSize ()
 
void setMinSize (QSize size)
 
void setMaxSize (QSize size)
 
void updateLayout ()
 
int windowID ()
 
MLABWidgetControlcontrol (const QString &name)
 
float scaleFactor ()
 
MLABModulemodule ()
 
QString getType ()
 
QString getName ()
 
bool acceptDrops ()
 
void setAcceptDrops (bool flag)
 
void raiseWidget ()
 
void setStyleSheetFromString (const QString &styleSheetText)
 
void setStyleSheetFromFile (const QString &styleSheetFileName)
 
MLABTreetree ()
 
void updateMaxSize ()
 
bool expandX ()
 
bool expandY ()
 
MLABTreePtr getDefaultTagValues () const
 
virtual bool hasUncommittedChanges () const
 
virtual void applyUncommittedChanges ()
 
virtual void revertUncommittedChanges ()
 
MLABFieldfield () const
 
virtual QString py_toString ()
 
- Public Member Functions inherited from MLABWidgetControl
bool createScreenshot (QWidget *widget, const QString &filename, int x=0, int y=0, int w=-1, int h=-1, bool grabFromScreen=true, bool scaleToLowRes=false)
 
void setStyle (MLABStyle *proto)
 
MLABStyle * style ()
 
QString buildTitleString (MLABField *optionalField, bool splitUppercase, TitleType *resultTitleType=nullptr)
 
void evaluateVisibleOnExpression ()
 
- Static Public Member Functions inherited from MLABWidgetControl
static bool showMDLFileForWidget (QWidget *w)
 
static bool showHelpContextMenuForWidget (QWidget *w)
 
static QKeySequence getKeySequence (const MLABTree *attrib)
 
static QString trimString (const QString &s, QWidget *w, trim mode)
 
- Protected Slots inherited from MLABWidgetControl
void emitResizeCommand ()
 
void updateEnabledState ()
 
void setVisibleDelayed (bool visible)
 
void tooltipFieldChanged ()
 
- Protected Member Functions inherited from MLABWidgetControl
void setupEditedField ()
 
virtual void internalReload ()
 
virtual void addDefaultTagValues (MLABTree *tree) const
 
void addDefaultTagValue (MLABTree *tree, const QString &tagName, const QString &tagValue) const
 
void addDefaultTagValue (MLABTree *tree, const QString &tagName, const char *tagValue) const
 
void addDefaultTagValue (MLABTree *tree, const QString &tagName, bool tagValue) const
 
void addDefaultTagValue (MLABTree *tree, const QString &tagName, int tagValue) const
 
void addDefaultTagValue (MLABTree *tree, const QString &tagName, unsigned int tagValue) const
 
void addDefaultTagValue (MLABTree *tree, const QString &tagName, float tagValue) const
 
void addDefaultTagValue (MLABTree *tree, const QString &tagName, double tagValue) const
 
bool verifyThatParentsHaveDifferentAlignGroups (const QString &alignGroup, bool isXAlign)
 
MLABFieldlookupField (const QString fieldname, MLABTree *tree, const char *classname=nullptr, bool warn=true)
 
QPixmap readPixmap (MLABTree *tree)
 
QPixmap readPixmap (const QString &filename)
 
QPixmap readPixmap (MLABTree *tree, float scale)
 
QPixmap readPixmap (const QString &filename, float scale)
 
QImage readImage (MLABTree *tree, float scale)
 
QImage readImage (const QString &filename, float scale)
 
void updateMaxSize (bool maygrow)
 
QString trimString (const QString &s, QWidget *w)
 
void setupScaleFactor ()
 
QString uniqueGroupString ()
 
bool createIconSet (QIcon &icon, QAbstractButton *button=nullptr, bool autoScale=false)
 
bool createIconSetPixmap (QIcon &iconset, const QString &name, QIcon::Mode mode, QIcon::State state, bool resize=false, QSize *scaleSize=nullptr)
 
bool createIconSet (MLABTree *tree, QIcon &icon, QAbstractButton *button=nullptr, bool autoScale=false)
 
bool createIconSetPixmap (MLABTree *tree, QIcon &iconset, const QString &name, QIcon::Mode mode, QIcon::State state, bool resize=false, QSize *scaleSize=nullptr)
 
QSize defaultIconSize ()
 
virtual void applyStyle ()
 
QString loadStyleSheetFile (const QString &styleSheetFileName)
 
- Static Protected Member Functions inherited from MLABWidgetControl
static QString loadTextFileWithReplacedMDLVariables (const QString &filename)
 
static bool shouldExpandCheck (MLABTree *t)
 
static QString removeStyleSheetComments (const QString &style)
 
- Protected Attributes inherited from MLABWidgetControl
struct MLABWidgetControl::__flags _flags
 
MLABTreePtr _tree
 
MLABTreePtr _prototype
 
MLABStylePtr _style
 
QWidget * _widget
 
int _windowId
 
float _scale
 
MLABWidgetControlContextInfo * _info
 
int _controlType
 
QString _alignGroupX
 
QString _alignGroupY
 
QString _alignGroupLabels
 
QString _alignChildX
 
QString _alignChildY
 
int _maxColIndex
 
int _maxRowIndex
 
int _layoutXDepth
 
int _layoutYDepth
 
QPointer< MLABModule_module
 
QPointer< MLABField_field
 
QPointer< MLABField_tooltipField
 
MLABFieldExpressionEvaluator * _visibleOnEvaluator
 
trim _trim
 
bool _isReloadable
 
- Static Protected Attributes inherited from MLABWidgetControl
static MLABTreePtr _currentAttrib
 
static int _uniqAlignGroupCounter
 
static const bool expandXDefault = false
 
static const bool expandYDefault = false
 
static const QString alignXDefault
 
static const QString alignYDefault
 
static const QString bgModeDefault
 
static const QString editBgModeDefault
 
static const QString buttonBgModeDefault
 
static const int colspanDefault = 1
 

Detailed Description

WebEngineView control offers a HTML browser engine based on Chromium/QtWebEngine.

To facilitate debugging of the control, you can enable the logConsoleOutput MDL tag. Another option is to set the environment variable QTWEBENGINE_REMOTE_DEBUGGING to a port number (e.g. 4567) and then connect a Google Chrome browser to http://127.0.0.1:4567/ to use the remote debugging tools.

MDL reference: WebEngineView

Member Function Documentation

◆ addObjectToWebChannel

void MLABWebEngineViewControl::addObjectToWebChannel ( const QString &  name,
QObject *  object 
)
slot

Registers the given object to the web channel It needs to be called before setting the content via setUrl().

It requires the usage of qwebchannel.js inside of the html document.

◆ isPrintingEnabled

bool MLABWebEngineViewControl::isPrintingEnabled ( ) const
inlineslot

Return if printing is enabled.

◆ openDevTools

void MLABWebEngineViewControl::openDevTools ( )
slot

Open a new window with developer tools for this web view.

◆ printPage

void MLABWebEngineViewControl::printPage ( QPrinter *  printer,
const QVariant &  resultCallback 
)
slot

Prints the current QWebEnginePage using the given printer.

Calls the result callback with a success indicating boolean, if the callback is valid. Otherwise prints an error in case of a failure. You must ensure that printer stays valid until the result callback has been called.

◆ removeObjectFromWebChannel

void MLABWebEngineViewControl::removeObjectFromWebChannel ( QObject *  object)
slot

Deregister an object previously registered with addObjectToWebChannel.

This acts the same as if the registered object was destroyed.

◆ runJavaScript [1/2]

void MLABWebEngineViewControl::runJavaScript ( const QString &  script)
slot

Runs the given script (asynchronously).

◆ runJavaScript [2/2]

void MLABWebEngineViewControl::runJavaScript ( const QString &  script,
const QVariant &  resultCallback 
)
slot

Runs the given script (asynchronously) and calls the result callback with the result of the last JavaScript statement.

◆ selectedText

QString MLABWebEngineViewControl::selectedText ( )
slot

Returns the currently selected text.

◆ setHtmlFromString

void MLABWebEngineViewControl::setHtmlFromString ( const QString &  html,
const QUrl &  baseUrl = QUrl() 
)
slot

Set the html data from the given string.

If no baseUrl is given, the base url is the of the MDL code that created this WebView.

◆ setPrintingEnabled

void MLABWebEngineViewControl::setPrintingEnabled ( bool  enabled)
slot

Sets if printing is enabled (connects current QWebEnginePage::printRequested() to showPrintDialog() slot if enabled is true).

◆ setUrl

void MLABWebEngineViewControl::setUrl ( const QUrl &  url)
slot

Set the url to load.

◆ setUrlFromFileName

void MLABWebEngineViewControl::setUrlFromFileName ( const QString &  absoluteFileName)
slot

Set the url from the given local filename.

◆ setUrlFromString

void MLABWebEngineViewControl::setUrlFromString ( const QString &  urlString)
slot

Set the url from the given string.

◆ setWebPage

void MLABWebEngineViewControl::setWebPage ( QWebEnginePage *  page)
slot

Allows to set your own QWebEnginePage, which you can derive using Python.

MDL link delegation and redirection to debug output will not work with your own widget, but you can re-implement that in Python.

◆ showPrintDialog

bool MLABWebEngineViewControl::showPrintDialog ( )
slot

Shows a print dialog which starts printing, if the user accepts it. Returns if the user accepted it.

◆ webPage

QWebEnginePage * MLABWebEngineViewControl::webPage ( )
slot

Get the access to the underlying page.

Import QtWebEngineWidgets to allow full scripting of this class.

from PythonQt import QtWebEngineWidgets

◆ webView

QWebEngineView * MLABWebEngineViewControl::webView ( )
slot

Get the access to the underlying view.

Import QtWebEngineWidgets to allow full scripting of this class.

from PythonQt import QtWebEngineWidgets