How to show a hover popup with SWT StyledText

Question

I am using SWT's StyledText and I am wondering how I would detect if the user hovers over a word for more then 3 seconds. An example of what I mean is how Eclipse has a popup that shows, when you hover over a text.

score 3 · Accepted Answer · answered Jan 19 '16 at 08:13

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You can use a 'mouse track listener' to listen for mouse hover events. However you can't set the hover time for this:

control.addMouseTrackListener(MouseTrackListener)

MouseTrackListener has three events - mouseEnter, mouseExit and mouseHover.

answered Jan 19 '16 at 08:13

greg-449

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score 3 · Answer 2 · edited May 23 '17 at 10:27

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While you can implementet text hover yourself, with a MouseTrackListener like suggested by Greg, you can also use the JFace TextViewer.

The TextViewer provides a higher-level abstraction for text hover. With its setTextHover() methods you can set a callback, that is informed when a text hover for a certain region should be shown.

This is also the method that is used by Eclipse text editors.

edited May 23 '17 at 10:27

Community

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answered Jan 19 '16 at 09:30

Rüdiger Herrmann

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score 0 · Answer 3 · answered Jan 19 '16 at 02:11

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I believe those are tooltips that appear when you hover over a text for e.g. in Java editor. See here for tooltip doc and here for examples on how real production code uses eclipse tooltips.

answered Jan 19 '16 at 02:11

SomeDude

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How to show a hover popup with SWT StyledText

3 Answers3