Unexpected behaviour of drag_window

[feelingnothing]

[feelingnothing]

After some test i figured that on windows it requires being called only on start, but losing focus after possible only with cursor going out of application

[emilk]

Perhaps winit::Window::drag_window should only be called once (even if an egui app sets the drag_window flag many frames). Since everything works well on my mac it is hard for me to figure out. Perhaps you can take a look at egui-winit/src/epi.rs and see if you can fix it? egui-winit would need to save some state (is_dragging_window) and then only call drag_window if drag_window && !is_dragging_window.

[a-liashenko]

I've checked this bug and looks like we should call drag_window() only after the mouse left click.
It works fine, but I'm not sure how it can work with touch screens. Do we have the same event from winit?

@emilk what do you think about it?

• Bugfix/drag window #1108

[a-liashenko]

But this solution is still far from the best. The application should call drag_window just after LMB drag_window.
For now, drag_window is called only during the redraw event. And I'm not sure how we can get frame output just after LMB.