com.vaadin.flow.component.contextmenu.
Class MenuItemBase<C extends ContextMenuBase<C,I,S>,I extends MenuItemBase<C,I,S>,S extends SubMenuBase<C,I,S>>
Type Parameters:
C
- the context menu type
I
- the menu item type
S
- the sub menu type
All Implemented Interfaces:
AttachNotifier
, DetachNotifier
, HasAriaLabel
, HasComponents
, HasElement
, HasEnabled
, HasStyle
, HasText
, Serializable
Direct Known Subclasses:
Base class for item component used inside ContextMenu
s.
Author:
Vaadin Ltd.
See Also:
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Nested Class Summary
Nested classes/interfaces inherited from interface com.vaadin.flow.component.HasText
HasText.WhiteSpace
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionvoid
addThemeNames
(String... themeNames) Adds one or more theme names to this item.
protected abstract S
protected void
executeJsWhenAttached
(String expression, Serializable... parameters) Gets the context menu component that this item belongs to.
Gets the sub menu API for this menu item.
boolean
hasThemeName
(String themeName) Checks if the item has the given theme name.
boolean
Gets whether this item toggles a checkmark icon when clicked.
boolean
Gets the checked state of this item.
boolean
Gets whether the item is set to be disabled when clicked.
boolean
Gets whether clicking this item keeps the menu open.
boolean
Gets whether this item has a sub menu attached to it or not.
void
removeThemeNames
(String... themeNames) Removes one or more theme names from this item.
void
setCheckable
(boolean checkable) Sets the checkable state of this menu item.
void
setChecked
(boolean checked) Sets the checked state of this item.
void
setDisableOnClick
(boolean disableOnClick) Sets whether the item should be disabled when clicked.
void
setEnabled
(boolean enabled) Sets the UI object explicitly disabled or enabled.
void
setKeepOpen
(boolean keepOpen) Sets the keep open state of this menu item.
Methods inherited from class com.vaadin.flow.component.Component
addListener, findAncestor, fireEvent, from, get, getChildren, getElement, getEventBus, getId, getListeners, getLocale, getParent, getTranslation, getTranslation, getTranslation, getTranslation, getTranslation, getTranslation, getUI, hasListener, isAttached, isTemplateMapped, isVisible, onAttach, onDetach, onEnabledStateChanged, removeFromParent, scrollIntoView, scrollIntoView, set, setElement, setId, setVisible
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Methods inherited from interface com.vaadin.flow.component.AttachNotifier
addAttachListener
Methods inherited from interface com.vaadin.flow.component.DetachNotifier
addDetachListener
Methods inherited from interface com.vaadin.flow.component.HasAriaLabel
getAriaLabel, getAriaLabelledBy, setAriaLabel, setAriaLabelledBy
Methods inherited from interface com.vaadin.flow.component.HasComponents
add, add, add, addComponentAsFirst, addComponentAtIndex, remove, remove, removeAll
Methods inherited from interface com.vaadin.flow.component.HasElement
getElement
Methods inherited from interface com.vaadin.flow.component.HasEnabled
isEnabled
Methods inherited from interface com.vaadin.flow.component.HasStyle
addClassName, addClassNames, getClassName, getClassNames, getStyle, hasClassName, removeClassName, removeClassNames, setClassName, setClassName
Methods inherited from interface com.vaadin.flow.component.HasText
getText, getWhiteSpace, setText, setWhiteSpace
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Constructor Details
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MenuItemBase
Default constructor
Parameters:
contextMenu
- the context menu to which this item belongs to
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Method Details
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getContextMenu
Gets the context menu component that this item belongs to.
Returns:
the context-menu component
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getSubMenu
Gets the sub menu API for this menu item. Adding content to the returned sub menu makes this component a parent item which opens the sub menu overlay. When the sub menu has no content, it won't be rendered.
Returns:
the sub menu that can be opened via this item
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isParentItem
public boolean isParentItem()Gets whether this item has a sub menu attached to it or not.
Returns:
true
if this component has a sub menu with content inside it,false
otherwiseSee Also:
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setCheckable
public void setCheckable(boolean checkable) Sets the checkable state of this menu item. A checkable item toggles a checkmark icon when clicked. Changes in the checked state can be handled in the item's click handler with
isChecked()
.Setting a checked item un-checkable also makes it un-checked.
Parameters:
checkable
-true
to enable toggling the checked-state of this menu item by clicking,false
to disable it.Throws:
IllegalStateException
- if setting a parent item checkable -
isCheckable
public boolean isCheckable()Gets whether this item toggles a checkmark icon when clicked.
Returns:
the checkable state of the item
See Also:
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setChecked
public void setChecked(boolean checked) Sets the checked state of this item. A checked item displays a checkmark icon next to it. The checked state is also toggled by clicking the item.
Note that the item needs to be explicitly set as checkable via
setCheckable(boolean)
in order to check it.Parameters:
checked
-true
to check this item,false
to un-check itThrows:
IllegalStateException
- if trying to check the item when it's checkable -
isChecked
public boolean isChecked()Gets the checked state of this item. The item can be checked and un-checked with
setChecked(boolean)
or by clicking it when it is checkable. A checked item displays a checkmark icon inside it.Returns:
true
if the item is checked,false
otherwiseSee Also:
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setKeepOpen
public void setKeepOpen(boolean keepOpen) Sets the keep open state of this menu item. An item that marked as keep open prevents menu from closing when clicked.
Parameters:
keepOpen
-true
to enable keeping the menu open when toggle this item selection,false
to disable it. -
isKeepOpen
public boolean isKeepOpen()Gets whether clicking this item keeps the menu open.
Returns:
the keep open state of the item
See Also:
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setDisableOnClick
public void setDisableOnClick(boolean disableOnClick) Sets whether the item should be disabled when clicked.
When set to
true
, the item will be immediately disabled on the client-side when clicked, preventing further clicks until re-enabled from the server-side.Parameters:
disableOnClick
- whether the item should be disabled when clicked -
isDisableOnClick
public boolean isDisableOnClick()Gets whether the item is set to be disabled when clicked.
Returns:
whether the item is set to be disabled on click
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setEnabled
public void setEnabled(boolean enabled) Description copied from interface:
HasEnabled
Sets the UI object explicitly disabled or enabled.
Specified by:
setEnabled
in interfaceHasEnabled
Parameters:
enabled
- iffalse
then explicitly disables the object, iftrue
then enables the object so that its state depends on parent -
addThemeNames
Adds one or more theme names to this item. Multiple theme names can be specified by using multiple parameters.
Parameters:
themeNames
- the theme name or theme names to be added to the item -
removeThemeNames
Removes one or more theme names from this item. Multiple theme names can be specified by using multiple parameters.
Parameters:
themeNames
- the theme name or theme names to be removed from the item -
hasThemeName
Checks if the item has the given theme name.
Parameters:
themeName
- the theme name to check forReturns:
true
if the item has the given theme name,false
otherwise -
createSubMenu
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executeJsWhenAttached
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