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Add AutoEditStrategy to my Source Viewer [message #492817]

Wed, 21 October 2009 20:43

Milton

Messages: 10
Registered: October 2009

Junior Member

Hi, I am trying to change the default auto-indent behavior of an AbstractDecoratedTextEditor. I need to do things like increasing the indentation when the cursor is after an opening bracket { and the user inserts a new line.

To do this I implemented my own IAutoEditStrategy and added the following code in the method createSourceViewer in my subclass of AbstractDecoratedTextEditor:

ISourceViewer viewer = super.createSourceViewer(parent, ruler, styles);
ITextViewerExtension2 viewerExt2 = (ITextViewerExtension2) viewer;
viewerExt2.prependAutoEditStrategy(new TestScriptAutoIndentStrategy(), IDocument.DEFAULT_CONTENT_TYPE);
return viewer;

Nevertheless this is not working. Method customizeDocumentCommand in my IAutoEditStrategy is never called. I tried to search through Eclipse source code to determine how is the default IAutoEditStrategy created and/or assigned to the viewer but couldn't find anything.

Thanks.

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Re: Add AutoEditStrategy to my Source Viewer [message #493171 is a reply to message #492817]

Fri, 23 October 2009 12:52

Dani Megert

Messages: 3802
Registered: July 2009

Senior Member

Milton wrote:
> Hi, I am trying to change the default auto-indent behavior of an
> AbstractDecoratedTextEditor. I need to do things like increasing the
> indentation when the cursor is after an opening bracket { and the user
> inserts a new line.
>
> To do this I implemented my own IAutoEditStrategy and added the
> following code in the method createSourceViewer in my subclass of
> AbstractDecoratedTextEditor:
>
>
> ISourceViewer viewer = super.createSourceViewer(parent, ruler, styles);
> ITextViewerExtension2 viewerExt2 = (ITextViewerExtension2) viewer;
> viewerExt2.prependAutoEditStrategy(new TestScriptAutoIndentStrategy(),
> IDocument.DEFAULT_CONTENT_TYPE);
> return viewer;
This will most likely be overwritten when the viewer is configured. Take
a look at:
org.eclipse.jface.text.source.SourceViewerConfiguration.getA utoEditStrategies(ISourceViewer,
String)

Dani
>
>
> Nevertheless this is not working. Method customizeDocumentCommand in
> my IAutoEditStrategy is never called. I tried to search through
> Eclipse source code to determine how is the default IAutoEditStrategy
> created and/or assigned to the viewer but couldn't find anything.
>
> Thanks.

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Re: Add AutoEditStrategy to my Source Viewer [message #493218 is a reply to message #493171]

Fri, 23 October 2009 16:37

Milton

Messages: 10
Registered: October 2009

Junior Member

Thanks a lot Dani, I changed getAutoEditStrategies in my SourceViewerConfiguration class and that worked.

Milton.

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