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SWTBot Drag and Drop - Tree to Editor [message #1398877]

Fri, 11 July 2014 18:37

Devin Nelson

Messages: 4
Registered: June 2014

Junior Member

I need to perform a drag-and-drop operation as part of one of my tests for my RCP application. The dragged item is a node in a treeviewer and the target location is an editor.

I can't figure out how to do this with the provided drag-and-drop methods. I could create my own implementation if I could figure out how to control mouse position, but all of the methods calls I've found so far are private/protected. I did try and use treeItem.display to get/set cursor location but was hit with an Invlaid Thread Access exception.

Thanks in advance for any direction on this.

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Re: SWTBot Drag and Drop - Tree to Editor [message #1403427 is a reply to message #1398877]

Wed, 23 July 2014 15:38

Devin Nelson

Messages: 4
Registered: June 2014

Junior Member

Should have updated this a while back, but don't want to leave a thread hanging so I'll add my findings:

I ended up having to use reflection to get the canvas object from my viewer, and then was able to pass that into the dragAndDrop() method that SWTBot has for SWTBotTreeItems. Worked in a pinch, though you can't give it x/y-coordinates (like you can when bringing from the palette), so it is still not ideal.

SWTBotView view = gefBot.viewByTitle("My View");
SWTBotTree tree = view.bot().tree();
SWTBotTreeItem treeItem = tree.expandNode("Parent Node Name", targetNodeName);

SWTBotGefViewer viewer = editor.getSWTBotGefViewer();
SWTBotGefFigureCanvas canvas = null;

for (Field f : viewer.getClass().getDeclaredFields()) {
    if ("canvas".equals(f.getName())) {
        f.setAccessible(true);
        try {
            canvas = (SWTBotGefFigureCanvas) f.get(viewer);
        } catch (IllegalArgumentException e) {
            e.printStackTrace(); 
        } catch (IllegalAccessException e) {
            e.printStackTrace(); 
        }
    }
}

Assert.assertNotNull(canvas);
treeItem.dragAndDrop(canvas);

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