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context menu appears on mouseUp under Windows, but on mouseDown under Mac OS [message #630634]

Mon, 04 October 2010 08:57

Patrick Oppermann
Messages: 10
Registered: July 2009

Junior Member

Hi everybody,

in my GEF-based RCP application, I implemented a mouse behavior that
involves dragging with the right mouse button held down. On mouseUp, a
custom context menu is supposed to appear. On Windows everything works
fine, on Mac OSX, however, the context menu (generally) appears at
mouseDown rather than at the mouseUp event, so dragging with the right
mouse button pressed is impossible. This is not only in the GEF diagram
editor, but system-wide. Is there a way to alter this behavior or
suppress the context menu triggering on mouseDown?

Greetings,
Patrick

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Re: context menu appears on mouseUp under Windows, but on mouseDown under Mac OS [message #630888 is a reply to message #630634]

Tue, 05 October 2010 09:18

Lakshmi Shanmugam
Messages: 271
Registered: July 2009
Location: India

Senior Member

Hi,

The pop-up menu appearing on mouse down is the correct platform behavior on Mac. To change this behavior, in the mouse listener you could use Menu.isVisible() to detect if the menu is visible and then call Menu.setVisible(visible) to show/hide the menu when required.

Lakshmi P Shanmugam

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