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Adding a Part from another plug-in to a Perspective [message #791932]

Mon, 06 February 2012 12:36

Christoph Keimel

Messages: 482
Registered: December 2010
Location: Germany

Senior Member

Hello

Please consider the following architecture of plug-ins:
- app
- contrib.a
- contrib.b

app ist the basic application. It has a TrimmedWindow, a PerspectiveStack and a basic Perspective with a PartStack (stack.main) in its application model.

contrib.a contributes a Part (contrib.a.part) to be shown in the main PartStack (stack.main).

contrib.b contributes a second perspective to the PerspectiveStack. This Perspective also wants to use the Part (contrib.a.part) contributed in contrib.a.

Could you please advice me on how to best share parts in this way.

Thank you!
Christoph

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Re: Adding a Part from another plug-in to a Perspective [message #791959 is a reply to message #791932]

Mon, 06 February 2012 13:11

Thomas Schindl

Messages: 6651
Registered: July 2009

Senior Member

To share a part instance between stacks you need to contribute the MPart
to the sharedElements of the MTrimmedWindow and *link* them into the
Stack using MPlaceholder!

If the Part is contributed through contrib.a you need to add a
dependency to it in contrib.b's MANIFEST.MF to ensure the contrib.a
fragment is merged before contrib.b.

To reference an Element in contrib.b inside the Placeholder you need to
"import" it into the fragment. I've just tried this and it gives me an
exception in the editor :-(

I've logged https://bugs.eclipse.org/bugs/show_bug.cgi?id=370713

Tom

Am 06.02.12 13:36, schrieb Christoph Keimel:
> Hello
>
> Please consider the following architecture of plug-ins:
> - app
> - contrib.a
> - contrib.b
>
> app ist the basic application. It has a TrimmedWindow, a
> PerspectiveStack and a basic Perspective with a PartStack (stack.main)
> in its application model.
> contrib.a contributes a Part (contrib.a.part) to be shown in the main
> PartStack (stack.main).
>
> contrib.b contributes a second perspective to the PerspectiveStack. This
> Perspective also wants to use the Part (contrib.a.part) contributed in
> contrib.a.
>
> Could you please advice me on how to best share parts in this way.
>
> Thank you!
> Christoph
>
>
>

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Re: Adding a Part from another plug-in to a Perspective [message #791984 is a reply to message #791932]

Mon, 06 February 2012 13:40

Christoph Keimel

Messages: 482
Registered: December 2010
Location: Germany

Senior Member

Hi Tom

Thanks for the quick reply. I wanted to verify the bug you posted.

Contributing to the sharedElements in contrib.a works. I can also use a Placeholder to add the Part to a PartStack in contrib.a.

I can then add a Part from contrib.a to the Imports-Node in contrib.b. I can also find the ID of the Part I want to import. I run into Problems when I want to create the Placeholder: Unfortunately I can not see this Part when I press the "Find..." button next to the "Reference" attribute.

I don't get an exception though either. Maybe my XMI-Editor is too old (from /e4/updates/0.11)?

Is it possible to manually add the reference in the XMI to the <children xsi:type="advanced:Placeholder" ... > element?

Greetings
Christoph

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Re: Adding a Part from another plug-in to a Perspective [message #791996 is a reply to message #791984]

Mon, 06 February 2012 13:49

Thomas Schindl

Messages: 6651
Registered: July 2009

Senior Member

It's exactly that Exception that I describe in the bug. The "Find ..."
button in the PlaceHolder-Editor is none functional.

You can naturally edit the file manually I guess the XMI-Definition has
to look like this:

<imports xsi:type="basic:Part" xmi:id="_UtzqgFDDEeG1afXU1XNLJA"
elementId="fff"/>
.....
<children xsi:type="advanced:Placeholder"
xmi:id="_QWfsAFDDEeG1afXU1XNLJA" ref="_UtzqgFDDEeG1afXU1XNLJA"/>

where the value of ref is the element from the imports above.

Tom

Am 06.02.12 14:40, schrieb Christoph Keimel:
> Hi Tom
>
> Thanks for the quick reply. I wanted to verify the bug you posted.
>
> Contributing to the sharedElements in contrib.a works. I can also use a
> Placeholder to add the Part to a PartStack in contrib.a.
>
> I can then add a Part from contrib.a to the Imports-Node in contrib.b. I
> can also find the ID of the Part I want to import. I run into Problems
> when I want to create the Placeholder: Unfortunately I can not see this
> Part when I press the "Find..." button next to the "Reference" attribute.
> I don't get an exception though either. Maybe my XMI-Editor is too old
> (from /e4/updates/0.11)?
>
> Is it possible to manually add the reference in the XMI to the <children
> xsi:type="advanced:Placeholder" ... > element?
> Greetings
> Christoph

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