The double-click behaviour is defined in the tool behavior provider.
If you didn’t do so already you must first create a tool behavior provider and add it to the diagram type provider as described here.
There is one method of the tool behavior provider to overwrite:
The method getDoubleClickFeature has to return the custom feature to execute on double-click for the given context.
In this example we want to execute the ”Rename EClass” feature we implemented previously on double-click.
You can see the complete implementation of the double-click behavior here:
@Override public ICustomFeature getDoubleClickFeature(IDoubleClickContext context) { ICustomFeature customFeature = new TutorialRenameEClassFeature(getFeatureProvider()); // canExecute() tests especially if the context contains a EClass if (customFeature.canExecute(context)) { return customFeature; }
return super.getDoubleClickFeature(context); }
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Now start the editor and create a new EClass. Double-click that EClass and the rename dialog appears, which allows changing the class name.