mouse shortcuts: allow using forcemousemod (e.g. shift) - st - Personal fork of st
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       ---
 (DIR) commit a2c479c4c8d035c11a91e4b954a9f161bf4c7150
 (DIR) parent d2b75db8d7519a20af8bf09e9c205507f9ff828c
 (HTM) Author: Avi Halachmi (:avih) <avihpit@yahoo.com>
       Date:   Thu, 24 Oct 2019 15:42:07 +0300
       
       mouse shortcuts: allow using forcemousemod (e.g. shift)
       
       The recent mouse shurtcuts commits allow customization, but ignore
       forcemousemod mask (default: shift) as a modifier, for no good reason
       other than following the behavior of the KB shortcuts.
       
       Allow using forcemousemod too, which now can be used to invoke
       different shortcuts, though the automatic effect of forcemousemod will
       be lost for buttons which use mask with forcemousemod.
       
       E.g. the default is:
       
       static uint forcemousemod = ShiftMask;
       ...
       { XK_ANY_MOD,           Button4, ttysend,        {.s = "\031"} },
       ...
       
       where ttysend will be invoked for button4 with any mod when not in mouse
       mode, and with shift when in mouse mode.
       
       Now it's possible to do this:
       { ShiftMask,            Button4, ttysend,        {.s = "foo"} },
       { XK_ANY_MOD,           Button4, ttysend,        {.s = "\031"} },
       
       Which will invoke ttysend("foo") while shift is held and ttysend("\031")
       otherwise. Shift still overrides mouse mode, but will now send "foo".
       
       Previously with this setup the second binding was always invoked
       because the forceousemod mask was always removed from the event.
       
       Buttons which don't use forcemousemod behave the same as before.
       
       This is useful e.g. for the scrollback mouse patch, which wants to
       configure shift+wheel for scrollback, while keeping the normal behavior
       without shift.
       
       Diffstat:
         M x.c                                 |       3 ++-
       
       1 file changed, 2 insertions(+), 1 deletion(-)
       ---
 (DIR) diff --git a/x.c b/x.c
       @@ -426,7 +426,8 @@ mouseaction(XEvent *e, uint release)
                for (ms = mshortcuts; ms < mshortcuts + LEN(mshortcuts); ms++) {
                        if (ms->release == release &&
                            ms->button == e->xbutton.button &&
       -                    match(ms->mod, e->xbutton.state & ~forcemousemod)) {
       +                    (match(ms->mod, e->xbutton.state) ||  /* exact or forced */
       +                     match(ms->mod, e->xbutton.state & ~forcemousemod))) {
                                ms->func(&(ms->arg));
                                return 1;
                        }