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Re: New Context Menu and mouse-1

From: Eli Zaretskii
Subject: Re: New Context Menu and mouse-1
Date: Fri, 27 Aug 2021 09:55:36 +0300

> From: Juri Linkov <juri@linkov.net>
> Date: Fri, 27 Aug 2021 09:21:21 +0300
> 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.

Why do you need mouse-set-region to be invoked?  And if you do, why
cannot the command bound to down-mouse-3 do that?

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