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Questions on Drag-n-Drop in Forms [message #1145331]

Sat, 19 October 2013 12:33

Uli B

Messages: 36
Registered: January 2012

Member

I have two questions on the drag-n-drop in an outline.

1. Dropping a node as a child of another node seems to be possible only if there's already a child. Can this be changed, so that a node can be dropped as the first child of anode?

2. I would also like to copy nodes with drag-n-drop. Is there a way to implement this?

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Re: Questions on Drag-n-Drop in Forms [message #1145561 is a reply to message #1145331]

Sat, 19 October 2013 16:14

Konstantin Komissarchik

Messages: 1077
Registered: July 2009

Senior Member

Quote:

1. Dropping a node as a child of another node seems to be possible only if there's already a child. Can this be changed, so that a node can be dropped as the first child of anode?

In addition to dropping between nodes in a list, you can also drop onto a node. That will add the dropped to the end of the node's child list. Also works if the node has no children yet.

Quote:

2. I would also like to copy nodes with drag-n-drop. Is there a way to implement this?

There is no facility to customize drag-n-drop behavior in the master details outline. I can see enhancing drag-n-drop with modifiers. Maybe holding down the shift key turns a move into a copy. Please open an enhancement request.

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Re: Questions on Drag-n-Drop in Forms [message #1145654 is a reply to message #1145561]

Sat, 19 October 2013 17:42

Uli B

Messages: 36
Registered: January 2012

Member

1. No, whatever I try, I cannot drop onto a node. There is always the black line above or below the node, and on drop, the node is inserted above or below the destination node, on the same level (Sapphire 0.6.6).

2. See https://bugs.eclipse.org/bugs/show_bug.cgi?id=419913

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Re: Questions on Drag-n-Drop in Forms [message #1148604 is a reply to message #1145654]

Mon, 21 October 2013 16:25

Konstantin Komissarchik

Messages: 1077
Registered: July 2009

Senior Member

Quote:

1. No, whatever I try, I cannot drop onto a node. There is always the black line above or below the node, and on drop, the node is inserted above or below the destination node, on the same level (Sapphire 0.6.6).

It sounds like you have trouble with the case where a node with a child node factory is itself a direct product of a child node factory. So a list within a list without intermediary static nodes. I will try to setup a repro for this scenario. I don't believe any of the existing samples do this.

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Re: Questions on Drag-n-Drop in Forms [message #1148757 is a reply to message #1148604]

Mon, 21 October 2013 18:27

Uli B

Messages: 36
Registered: January 2012

Member

Yes, all nodes are a direct product of a child node factory.

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Re: Questions on Drag-n-Drop in Forms [message #1148882 is a reply to message #1148757]

Mon, 21 October 2013 20:17

Konstantin Komissarchik

Messages: 1077
Registered: July 2009

Senior Member

Both of the issues have been resolved. Please verify and confirm in bugzilla.

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Re: Questions on Drag-n-Drop in Forms [message #1148883 is a reply to message #1148882]

Mon, 21 October 2013 20:18

Konstantin Komissarchik

Messages: 1077
Registered: July 2009

Senior Member

Copy modifier is not supported for DND in forms
https://bugs.eclipse.org/bugs/show_bug.cgi?id=419913

Unable to drop onto a node if the node is itself part of a list
https://bugs.eclipse.org/bugs/show_bug.cgi?id=420021

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Re: Questions on Drag-n-Drop in Forms [message #1150430 is a reply to message #1148883]

Tue, 22 October 2013 19:28

Uli B

Messages: 36
Registered: January 2012

Member

Tried both. Works perfect. Many thanks, also for your fast response.

Now, may I kindly ask for a backport to 0.6.x? The reason is, the Eclipse 3rd party product we are targeting with the Sapphire plugin is still Helios/3.6, and there seem to be no real plans to move forward. According to your announcement, 0.7.x requires at least Indigo/3.7. If so, having the two changes also in 0.6.x would be more than helpful.

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