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Context Activation doesn't work [message #488589]

Tue, 29 September 2009 11:17

Ralf Heydenreich

Messages: 235
Registered: July 2009

Senior Member

Hi all,
I want to activate a defined context programmatically. What I've done is
the following:

plugin.xml:

<extension
point="org.eclipse.ui.contexts">
<context
description="Context for editing Sources"
id="my.own.EditorScope"
name="PrivateEditing"
parentId="org.eclipse.xtext.ui.core.XtextEditorScope">
</context>
</extension>

Now, in the Activator class of my plugin I've overwritten the start()
method:

private static final String MYEDITORCONTEXT = "my.own.EditorScope";

@Override
public void start(BundleContext context) throws Exception {
super.start(context);
IContextService contextService =
(IContextService)getWorkbench().getService(IContextService.c lass);
IContextActivation activation =
contextService.activateContext(MYEDITORCONTEXT);
System.out.println("*** NEW CONTEXT: "+activation.getContextId());
}

If I start a new Eclipse Application based on my new plugin (there are
some more plugins, yet), the console tells me that the context was
changed. But if I look in Window -> Preferences -> General -> Keys the
Scheme is always set to Default. I thought that changing the context
changes this, too. Any hints are welcome.

TIA,
Ralf.

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Re: Context Activation doesn't work [message #488650 is a reply to message #488589]

Tue, 29 September 2009 15:32

Paul Webster

Messages: 6859
Registered: July 2009
Location: Ottawa

Senior Member

The context is active. But schemes are something else entirely (groups of keybindings).

Activating a context simply activates it. If you have a keybinding in that context, it will be considered to see if can be an active keybinding.

PW

Paul Webster
http://wiki.eclipse.org/Platform_Command_Framework
http://wiki.eclipse.org/Command_Core_Expressions
http://wiki.eclipse.org/Menu_Contributions

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