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libdraw: avoid dropping queued button change mouse events in emouse()

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This commit is contained in:
cinap_lenrek 2016-10-22 00:04:21 +02:00
parent e5dc3ade08
commit 6d97f77c2d
1 changed files with 5 additions and 4 deletions
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9
sys/src/libdraw/event.c
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@ -380,21 +380,22 @@ emouse(void)
{
Mouse m;
Ebuf *eb;
static but[2];
static int lastb;
int b;
if(Smouse < 0)
drawerror(display, "events: mouse not initialized");
for(;;){
eb = ebread(&eslave[Smouse]);
if(!ecanmouse())
b = atoi((char*)eb->buf+1+2*12);
if(b != lastb || !ecanmouse())
break;
free(eb); /* drop queued mouse events */
}
lastb = b;
m.buttons = b;
m.xy.x = atoi((char*)eb->buf+1+0*12);
m.xy.y = atoi((char*)eb->buf+1+1*12);
b = atoi((char*)eb->buf+1+2*12);
m.buttons = b;
m.msec = atoi((char*)eb->buf+1+3*12);
if (logfid)
fprint(logfid, "b: %d xy: %P\n", m.buttons, m.xy);