Package org.eclipse.ui.texteditor
Class ShiftAction
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- All Implemented Interfaces:
IAction
,IReadOnlyDependent
,IUpdate
public class ShiftAction extends TextEditorAction implements IReadOnlyDependent
Action for shifting code to the right or left by one indentation level.- Since:
- 2.0
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Field Summary
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Fields inherited from interface org.eclipse.jface.action.IAction
AS_CHECK_BOX, AS_DROP_DOWN_MENU, AS_PUSH_BUTTON, AS_RADIO_BUTTON, AS_UNSPECIFIED, CHECKED, DESCRIPTION, ENABLED, HANDLED, IMAGE, RESULT, TEXT, TOOL_TIP_TEXT
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Constructor Summary
Constructors Constructor Description ShiftAction(ResourceBundle bundle, String prefix, ITextEditor editor, int operationCode)
Creates and initializes the action for the given text editor and operation code.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description boolean
isEnabled(boolean isWritable)
Returns whether the actions would be enabled if its target would be enabled given the writable state described byisWritable
.void
run()
TheTextOperationAction
implementation of thisIAction
method runs the operation with the current operation code.void
setEditor(ITextEditor editor)
Retargets this action to the given editor.void
update()
Always enables this action if it is connected to a text editor.protected void
updateForTab()
Enablement when tab key is pressed - the current selection has to be cover multiple lines.-
Methods inherited from class org.eclipse.ui.texteditor.TextEditorAction
canModifyEditor, getTextEditor, validateEditorInputState
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Methods inherited from class org.eclipse.ui.texteditor.ResourceAction
getString, initialize, setHelpContextId
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Methods inherited from class org.eclipse.jface.action.Action
convertAccelerator, convertAccelerator, findKeyCode, findKeyString, findModifier, findModifierString, getAccelerator, getActionDefinitionId, getDescription, getDisabledImageDescriptor, getHelpListener, getHoverImageDescriptor, getId, getImageDescriptor, getMenuCreator, getStyle, getText, getToolTipText, isChecked, isEnabled, isHandled, notifyResult, removeAcceleratorText, removeMnemonics, runWithEvent, setAccelerator, setActionDefinitionId, setChecked, setDescription, setDisabledImageDescriptor, setEnabled, setHelpListener, setHoverImageDescriptor, setId, setImageDescriptor, setMenuCreator, setText, setToolTipText
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Methods inherited from class org.eclipse.jface.action.AbstractAction
addPropertyChangeListener, firePropertyChange, firePropertyChange, removePropertyChangeListener
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Methods inherited from class org.eclipse.core.commands.common.EventManager
addListenerObject, clearListeners, getListeners, isListenerAttached, removeListenerObject
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Constructor Detail
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ShiftAction
public ShiftAction(ResourceBundle bundle, String prefix, ITextEditor editor, int operationCode)
Creates and initializes the action for the given text editor and operation code. The action configures its visual representation from the given resource bundle. The action works by asking the text editor at the time for its text operation target adapter (usinggetAdapter(ITextOperationTarget.class)
. The action runs that operation with the given opcode.- Parameters:
bundle
- the resource bundleprefix
- a prefix to be prepended to the various resource keys (described inResourceAction
constructor), ornull
if noneeditor
- the text editoroperationCode
- the operation code- See Also:
TextEditorAction(ResourceBundle, String, ITextEditor)
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Method Detail
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run
public void run()
TheTextOperationAction
implementation of thisIAction
method runs the operation with the current operation code.- Specified by:
run
in interfaceIAction
- Overrides:
run
in classAction
- See Also:
How radio buttons are handled
,How check boxes are handled
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update
public void update()
Description copied from class:TextEditorAction
Always enables this action if it is connected to a text editor. If the associated editor isnull
, the action is disabled. Subclasses may override.- Specified by:
update
in interfaceIUpdate
- Overrides:
update
in classTextEditorAction
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updateForTab
protected void updateForTab()
Enablement when tab key is pressed - the current selection has to be cover multiple lines.- Since:
- 3.0
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setEditor
public void setEditor(ITextEditor editor)
Description copied from class:TextEditorAction
Retargets this action to the given editor.- Overrides:
setEditor
in classTextEditorAction
- Parameters:
editor
- the new editor, ornull
if none
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isEnabled
public boolean isEnabled(boolean isWritable)
Description copied from interface:IReadOnlyDependent
Returns whether the actions would be enabled if its target would be enabled given the writable state described byisWritable
.isEnabled()
andisEnabled(boolean)
holds the following invariants: isEnabled() == false, if isEnabled(true) == false || isEnabled(false) == false isEnabled() == true, if isEnabled(true) == true || isEnabled(false) == true- Specified by:
isEnabled
in interfaceIReadOnlyDependent
- Parameters:
isWritable
- the writable state- Returns:
- the hypothetical enable state of the action
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