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E4 way to react on part hide / show [message #1709423]

Mon, 28 September 2015 11:07

Patrik Suzzi

Messages: 2
Registered: February 2018

Junior Member

Hallo,

I am an Eclipse E4 user, and I would like to know if there is a Best Practices for Eclipse4 on how to react to part hide & show.

This is my example:

I have two parts:
PartMaster : allows the user to select one element.
PartDetail : displays details of the element selected in Master.

Both these two parts are contained, in a container that can be hidden or displayed, depending on user interaction.

My scope is to react to part hide / show.
As example: when the user makes the two parts visible again, I want to re-select an element in PartMaster, and update the visualization in PartDetail.

To achieve this, need to execute a "selection" code, when PartMaster is displayed again.

So, my question is: what are the best practices on hook the display / hide events on an E4 Part ?

Kind Regards
Patrik

[Updated on: Tue, 29 September 2015 09:01] by Moderator

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Re: E4 way to react on part hide / show [message #1713194 is a reply to message #1709423]

Mon, 02 November 2015 09:09

Alexander Bunkowski

Messages: 29
Registered: February 2014

Junior Member

Hey Patrik.

here I had some problems with the part visible mechanism reacting to UIEvents.UILifeCycle.BRINGTOTOP https://www.eclipse.org/forums/index.php/m/1699991/
Maybe this is sufficient for your case.

If you need to get notified on perspective switch as well (like me) the only reliable way I found is:

				ePartService.addPartListener(new PartListenerAdapter() {
					@Override
					public void partBroughtToTop(MPart part) {
						if (part == targetMPart) {
							//react here
						}
					}
				});

I did a lot of part visibility stuff, let me now if this helped you or if you need more details.

[Updated on: Mon, 02 November 2015 09:10]

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