Package eu.webtoolkit.jwt

Class WBootstrap5Theme

java.lang.Object

eu.webtoolkit.jwt.WObject

eu.webtoolkit.jwt.WTheme

eu.webtoolkit.jwt.WBootstrap5Theme

public class WBootstrap5Theme
extends WTheme

Theme based on the Bootstrap 5 CSS framework.

This theme implements support for building a JWt web application that uses Bootstrap 5 as a theme for its (layout and) styling.

Using this theme, various widgets provided by the library are rendered using markup that is compatible with Bootstrap 5. The bootstrap theme is also extended with a proper (compatible) styling of widgets for which bootstrap does not provide styling (table views, tree views, sliders, etc...).

By default, the theme will use CSS and JavaScript resources that are shipped together with the JWt distribution, but you can replace the CSS with custom-built CSS by reimplementing getStyleSheets().

Although this theme styles individual widgets correctly, for your web application's layout you are recommended to use WTemplate in conjunction with Bootstrap's CSS classes. For this we refer to Bootstrap's documentation at https://getbootstrap.com.

Nested Class Summary

Nested classes/interfaces inherited from class eu.webtoolkit.jwt.WObject

WObject.FormData

Constructor Summary

Constructors

Constructor	Description
WBootstrap5Theme()	Constructor.

Method Summary

Modifier and Type	Method	Description
void	apply(WWidget widget, DomElement element, int elementRole)	Applies the theme to a DOM element that renders a widget.
protected void	applyFunctionalStyling(WWidget widget, WWidget child, int widgetRole)	Applies the functional part of the theme to a widget's child.
protected void	applyOptionalStyling(WWidget widget, WWidget child, int widgetRole)	Applies the optional part of the theme to a widget's child.
void	applyValidationStyle(WWidget widget, WValidator.Result validation, EnumSet<ValidationStyleFlag> styles)	Applies a style that indicates the result of validation.
boolean	canBorderBoxElement(DomElement element)
String	getActiveClass()	Returns a generic CSS class name for an active element.
String	getDisabledClass()	Returns a generic CSS class name for a disabled element.
String	getName()	Returns a theme name.
Side	getPanelCollapseIconSide()	Returns which side the WPanel collapse icon should be added on.
String	getResourcesUrl()	Returns the URL where theme-related resources are stored.
List<WLinkedCssStyleSheet>	getStyleSheets()	Returns a vector with stylesheets for the theme.
void	init(WApplication app)	Called when the theme is assigned to a WApplication.
boolean	isCanStyleAnchorAsButton()	Returns whether the theme allows for an anchor to be styled as a button.
void	loadValidationStyling(WApplication app)	Load the required content for validation.
String	utilityCssClass(int utilityCssClassRole)	Returns a generic CSS class name for the chosen role.

Methods inherited from class eu.webtoolkit.jwt.WTheme

apply, applyValidationStyle, serveCss

Methods inherited from class eu.webtoolkit.jwt.WObject

getId, getObjectName, remove, resendFormData, setFormData, setObjectName, tr

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

WBootstrap5Theme

public WBootstrap5Theme()

Constructor.

Method Details

init

public void init(WApplication app)

Description copied from class: WTheme

Called when the theme is assigned to a WApplication.

This allows the theme to do things like load resource bundles when it is added to an application using WApplication#setTheme().

The default implementation does nothing.

Overrides:

init in class WTheme

getName

public String getName()

Description copied from class: WTheme

Returns a theme name.

Returns a unique name for the theme. This name is used by the default implementation of getResourcesUrl() to compute a location for the theme's resources.

Specified by:

getName in class WTheme

getResourcesUrl

public String getResourcesUrl()

Description copied from class: WTheme

Returns the URL where theme-related resources are stored.

The default implementation considers a folder within JWt's resource directory, based on the theme getName().

Overrides:

getResourcesUrl in class WTheme

getStyleSheets

public List<WLinkedCssStyleSheet> getStyleSheets()

Description copied from class: WTheme

Returns a vector with stylesheets for the theme.

This should return a vector with stylesheets that implement the theme. This list may be tailored to the current user agent, which is read from the application environment.

Specified by:

getStyleSheets in class WTheme

apply

public void apply(WWidget widget,
 DomElement element,
 int elementRole)

Description copied from class: WTheme

Applies the theme to a DOM element that renders a widget.

The element is a rendered representation of the widget, and may be further customized to reflect the theme.

Specified by:

apply in class WTheme

getDisabledClass

public String getDisabledClass()

Description copied from class: WTheme

Returns a generic CSS class name for a disabled element.

Specified by:

getDisabledClass in class WTheme

getActiveClass

public String getActiveClass()

Description copied from class: WTheme

Returns a generic CSS class name for an active element.

Specified by:

getActiveClass in class WTheme

utilityCssClass

public String utilityCssClass(int utilityCssClassRole)

Description copied from class: WTheme

Returns a generic CSS class name for the chosen role.

Specified by:

utilityCssClass in class WTheme

isCanStyleAnchorAsButton

public boolean isCanStyleAnchorAsButton()

Description copied from class: WTheme

Returns whether the theme allows for an anchor to be styled as a button.

Specified by:

isCanStyleAnchorAsButton in class WTheme

loadValidationStyling

public void loadValidationStyling(WApplication app)

Description copied from class: WTheme

Load the required content for validation.

The styling, and scripts used for validation are separated. Loading these is not done on theme initialization.

Overrides:

loadValidationStyling in class WTheme

applyValidationStyle

public void applyValidationStyle(WWidget widget,
 WValidator.Result validation,
 EnumSet<ValidationStyleFlag> styles)

Description copied from class: WTheme

Applies a style that indicates the result of validation.

Specified by:

applyValidationStyle in class WTheme

canBorderBoxElement

public boolean canBorderBoxElement(DomElement element)

Specified by:

canBorderBoxElement in class WTheme

getPanelCollapseIconSide

public Side getPanelCollapseIconSide()

Description copied from class: WTheme

Returns which side the WPanel collapse icon should be added on.

Side is assumed to be Side.Left or Side.Right, other sides are not supported.

Overrides:

getPanelCollapseIconSide in class WTheme

applyFunctionalStyling

protected void applyFunctionalStyling(WWidget widget,
 WWidget child,
 int widgetRole)

Description copied from class: WTheme

Applies the functional part of the theme to a widget's child.

Only applies the functional part of the theme. This means that only things that are mandatory for the widget to function properly but depend on the theme are applied.

Specified by:

applyFunctionalStyling in class WTheme

See Also:

• WTheme.apply(WWidget widget, WWidget child, int widgetRole)
• WTheme.applyOptionalStyling(WWidget widget, WWidget child, int widgetRole)

applyOptionalStyling

protected void applyOptionalStyling(WWidget widget,
 WWidget child,
 int widgetRole)

Description copied from class: WTheme

Applies the optional part of the theme to a widget's child.

Only applies the optional part of the theme. This means that only things that are purely cosmetic and do not affect the functionality of the widget are applied.

This should only be called for widgets that have theme styling enabled.

Specified by:

applyOptionalStyling in class WTheme

See Also:

• WTheme.apply(WWidget widget, WWidget child, int widgetRole)
• WTheme.applyFunctionalStyling(WWidget widget, WWidget child, int widgetRole)
• WWidget.setThemeStyleEnabled(boolean enabled)