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MultiPageEditorPart and menu contribution [message #756649]

Mon, 14 November 2011 10:13

Jan Krakora
Messages: 477
Registered: December 2009
Location: Prague

Senior Member

Hi guys,

I have an Editor part and several menu contributions with <visibleWhen> expression bounded to the activeEditorId property. It's working as expected, the menu is visible only when this editor is active.

Now I would like to create a multi page editor (MultiPageEditorPart). This multi page editor contains several editors and one of them is the editor part mentioned earlier. But when I select the tab containing the editor part, my menu contribution is not visible.

When I turn tracing on, I can see that the multi page editor part is the active editor all the time regardless of the selected tab. That's not what I've expected. I thought that when I select a tab containing an editor part, the multi page editor part activates (somehow) this editor part.

I'm I missing something?

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Re: MultiPageEditorPart and menu contribution [message #756661 is a reply to message #756649]

Mon, 14 November 2011 10:35

Paul Webster
Messages: 6857
Registered: July 2009
Location: Ottawa

Senior Member

You're seeing correctly. The MPEP is an editor, and the contained editors are not exposed to the workbench framework. It cannot see them as they are. The MPEP has to do the work to provide whatever commands its current active editor is.

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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Re: MultiPageEditorPart and menu contribution [message #756674 is a reply to message #756661]

Mon, 14 November 2011 11:03

Jan Krakora
Messages: 477
Registered: December 2009
Location: Prague

Senior Member

Yes, but how to do that? Those nested editors can be contributed from 3rd party plugins, where its programmers use menu contributions as I wrote before. How can I(as the MPEP programmer), enable theirs menu contributions bounded to the activeEditorId property? Or it's just impossible?

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Re: MultiPageEditorPart and menu contribution [message #756706 is a reply to message #756674]

Mon, 14 November 2011 13:16

Paul Webster
Messages: 6857
Registered: July 2009
Location: Ottawa

Senior Member

In the main menu bar, you have 2 situations.

1) if they used org.eclipse.ui.menus to make their commands available and tied it to their editor ID, you'd have to provide something similar tied to the MPEP editor id. If they tied their handlers to their activeEditorId, I'm not sure there's much you can do as the handler wouldn't be available even if the menu item was. If they activated their handler through the IHandlerService from their site, that would continue to work.

2) if they used the EditorActionBarContributors to contribute actions instead, then you're out of luck without copying their code and doing all of the work they used to do.

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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Re: MultiPageEditorPart and menu contribution [message #756812 is a reply to message #756706]

Tue, 15 November 2011 04:04

Jan Krakora
Messages: 477
Registered: December 2009
Location: Prague

Senior Member

Thank you

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Re: MultiPageEditorPart and menu contribution [message #756881 is a reply to message #756812]

Tue, 15 November 2011 07:32

Paul Webster
Messages: 6857
Registered: July 2009
Location: Ottawa

Senior Member

I'll just add that the work that is being done in Eclipse 4 is restructuring the framework so that an embedded editor like this can just continue to work as it did. But we won't be exposing that functionality fully until Eclipse 4.3.

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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