commit 022d07605412bc5bd9726f74af9355c562ba4957
from: Markus Teich <markus.teich@stusta.mhn.de>
via: Anselm R Garbe <anselm@garbe.us>
date: Tue Mar 28 18:23:34 2017 UTC

Button passthrough when client is not focused

Before this change it is not possible to press a button in a client on the first
click if the client is not yet focused. The first click on the button would
only focus the client and a second click on the button is needed to activate it.
This situation can occur when moving the mouse over a client (therefore focusing
it) and then moving the focus to another client with keyboard shortcuts.

After this commit the behavior is fixed and button presses on unfocused clients
are passed to the client correctly.

commit - 2952b68db88f38be8d34b80c7a7d2c7eb5b2484d
commit + 022d07605412bc5bd9726f74af9355c562ba4957
blob - 3f80b632eca1fbc8b700d9334dde12b997f7dfad
blob + 9c01d1a154e05a0f0d1bd6e486c0fd6d8c9987d5
--- dwm.c
+++ dwm.c
@@ -446,6 +446,8 @@ buttonpress(XEvent *e)
 			click = ClkWinTitle;
 	} else if ((c = wintoclient(ev->window))) {
 		focus(c);
+		restack(selmon);
+		XAllowEvents(dpy, ReplayPointer, CurrentTime);
 		click = ClkClientWin;
 	}
 	for (i = 0; i < LENGTH(buttons); i++)
@@ -932,17 +934,16 @@ grabbuttons(Client *c, int focused)
 		unsigned int i, j;
 		unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
 		XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
-		if (focused) {
-			for (i = 0; i < LENGTH(buttons); i++)
-				if (buttons[i].click == ClkClientWin)
-					for (j = 0; j < LENGTH(modifiers); j++)
-						XGrabButton(dpy, buttons[i].button,
-						            buttons[i].mask | modifiers[j],
-						            c->win, False, BUTTONMASK,
-						            GrabModeAsync, GrabModeSync, None, None);
-		} else
+		if (!focused)
 			XGrabButton(dpy, AnyButton, AnyModifier, c->win, False,
-			            BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
+			            BUTTONMASK, GrabModeSync, GrabModeSync, None, None);
+		for (i = 0; i < LENGTH(buttons); i++)
+			if (buttons[i].click == ClkClientWin)
+				for (j = 0; j < LENGTH(modifiers); j++)
+					XGrabButton(dpy, buttons[i].button,
+					            buttons[i].mask | modifiers[j],
+					            c->win, False, BUTTONMASK,
+					            GrabModeAsync, GrabModeSync, None, None);
 	}
 }