ITextEditorExtension (Eclipse Platform API Specification)

All Known Implementing Classes:

AbstractDecoratedTextEditor, AbstractTextEditor, StatusTextEditor, TextEditor
```
public interface ITextEditorExtension
```
Extension interface for ITextEditor. Adds the following functions:
- status fields
- read-only state of the editor's input
- ruler context menu listeners.
Since:

2.0

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`addRulerContextMenuListener(IMenuListener listener)`	Adds a ruler context menu listener to the editor.
`boolean`	`isEditorInputReadOnly()`	Returns whether the editor's input is read-only.
`void`	`removeRulerContextMenuListener(IMenuListener listener)`	Removes a ruler context menu listener from the editor.
`void`	`setStatusField(IStatusField field, String category)`	Informs the editor which status field is to be used when posting status information in the given category.

- Method Detail
  - setStatusField
```
void setStatusField(IStatusField field,
                    String category)
```
    Informs the editor which status field is to be used when posting status information in the given category.
    
    Parameters:
    
    field - the status field to be used
    
    category - the status information category
    
    See Also:
    
    ITextEditorActionConstants
  - isEditorInputReadOnly
```
boolean isEditorInputReadOnly()
```
    Returns whether the editor's input is read-only. The semantics of this method is orthogonal to isEditable as it talks about the editor input, i.e. the domain element, and not about the editor document.
    
    Returns:
    
    true if the editor input is read-only
  - addRulerContextMenuListener
```
void addRulerContextMenuListener(IMenuListener listener)
```
    Adds a ruler context menu listener to the editor.
    
    Parameters:
    
    listener - the listener
  - removeRulerContextMenuListener
```
void removeRulerContextMenuListener(IMenuListener listener)
```
    Removes a ruler context menu listener from the editor.
    
    Parameters:
    
    listener - the listener