Package org.eclipse.ui.texteditor

Class ShiftAction

java.lang.Object

org.eclipse.core.commands.common.EventManager

org.eclipse.jface.action.AbstractAction

org.eclipse.jface.action.Action

org.eclipse.ui.texteditor.ResourceAction

org.eclipse.ui.texteditor.TextEditorAction

org.eclipse.ui.texteditor.ShiftAction

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

Field Summary

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

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.

Method Summary

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 by isWritable.
void	run()	The TextOperationAction implementation of this IAction 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

Methods inherited from class org.eclipse.ui.texteditor.ResourceAction

getString, initialize, setHelpContextId

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

Methods inherited from class org.eclipse.jface.action.AbstractAction

addPropertyChangeListener, firePropertyChange, firePropertyChange, removePropertyChangeListener

Methods inherited from class org.eclipse.core.commands.common.EventManager

addListenerObject, clearListeners, getListeners, isListenerAttached, removeListenerObject

Methods inherited from class java.lang.Object

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

Constructor Details

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 (using getAdapter(ITextOperationTarget.class). The action runs that operation with the given opcode.

Parameters:

bundle - the resource bundle

prefix - a prefix to be prepended to the various resource keys (described in ResourceAction constructor), or null if none

editor - the text editor

operationCode - the operation code

See Also:

• TextEditorAction(ResourceBundle, String, ITextEditor)

Method Details

run

public void run()

The TextOperationAction implementation of this IAction method runs the operation with the current operation code.

Specified by:

run in interface IAction

Overrides:

run in class Action

See Also:

• How radio buttons are handled
• How check boxes are handled

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 is null, the action is disabled. Subclasses may override.

Specified by:

update in interface IUpdate

Overrides:

update in class TextEditorAction

updateForTab

protected void updateForTab()

Enablement when tab key is pressed - the current selection has to be cover multiple lines.

Since:

3.0

setEditor

public void setEditor(ITextEditor editor)

Description copied from class: TextEditorAction

Retargets this action to the given editor.

Overrides:

setEditor in class TextEditorAction

Parameters:

editor - the new editor, or null if none

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 by isWritable. isEnabled() and isEnabled(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 interface IReadOnlyDependent

Parameters:

isWritable - the writable state

Returns:

the hypothetical enable state of the action