Re: New Context Menu and mouse-1

[Juri Linkov]

Other apps support the following optimal mouse gesture:

1. Press down-mouse-1 and move the mouse to select the region;
2. Without releasing mouse-1, click mouse-3 to pop up the context menu;
3. Release mouse-1 on the menu item "Cut", thus deleting the region.

This allows selecting and deleting the region with just 2 mouse clicks.
The same works almost perfectly in Emacs with a single snag:
while dragging mouse-1, visually it looks like the region is selected,
but really the region don't get selected until mouse-1 is released
and calls 'mouse-set-region' bound to [drag-mouse-1].

But while using the above gesture, [drag-mouse-1] (mouse-set-region) is
never invoked:

 <down-mouse-1>             ;; mouse-drag-region
 <mouse-movement>           ;; anonymous-command
 <mouse-movement>           ;; anonymous-command
 <mouse-movement>           ;; anonymous-command
 <down-mouse-3> <cut>       ;; kill-region

I have no idea how this could be fixed.

Maybe mouse--drag-set-mark-and-point should set the real region when
called from lambda bound to [mouse-movement] by set-transient-map in
mouse-drag-track?