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Creating a text-hung eclipse plugin

I would like to make an Eclipse plugin (text editor). I would “read” the text under the cursor and show a dynamically generated hover depending on the text. Now I have a problem that I do not know how I can read the text and “add” the hang.

This is my first Eclipse plugin , so I'm happy for every piece of advice I can get.

Edit:

I would like to integrate it into the default Eclipse Java editor. I tried to create a new plugin with an editor template, but I think this is the wrong way.

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The answer from PKeidel is exactly what I'm looking for :)

Thanks PKeidel

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Your mistake is that you created a completely new editor instead of the plug-in for your existing Java editor. Plugins will be activated using extension points . In your case, you should use org.eclipse.jdt.ui.javaEditorTextHovers more ....

 <plugin> <extension point="org.eclipse.jdt.ui.javaEditorTextHovers"> <hover activate="true" class="path.to_your.hoverclass" id="id.path.to_your.hoverclass"> </hover> </extension> </plugin>


The class argument contains the path to your class, which implements IJavaEditorTextHover .

 public class LangHover implements IJavaEditorTextHover { @Override public String getHoverInfo(ITextViewer textviewer, IRegion region) { if(youWantToShowAOwnHover) return "Your own hover Text goes here""; return null; // Shows the default Hover (Java Docs) } }

That should do it; -)

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