X-Git-Url: https://jasonwoof.com/gitweb/?a=blobdiff_plain;f=client.c;h=725f70bd5d07dc8879af37053845f964c4b22c8b;hb=bda53ac6ad834824e8e5d5678ccd638a122c173a;hp=9c0428a0db4c7e5a3c6857cda281e085054997da;hpb=7b6d5ff29863e4bc7ba787357133ffb9bc5157e6;p=dwm.git

diff --git a/client.c b/client.c
index 9c0428a..725f70b 100644
--- a/client.c
+++ b/client.c
@@ -11,11 +11,17 @@
 /* static functions */
 
 static void
-grabbuttons(Client *c, Bool focus)
-{
+detachstack(Client *c) {
+	Client **tc;
+	for(tc=&stack; *tc && *tc != c; tc=&(*tc)->snext);
+	*tc = c->snext;
+}
+
+static void
+grabbuttons(Client *c, Bool focused) {
 	XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
 
-	if(focus) {
+	if(focused) {
 		XGrabButton(dpy, Button1, MODKEY, c->win, False, BUTTONMASK,
 				GrabModeAsync, GrabModeSync, None, None);
 		XGrabButton(dpy, Button1, MODKEY | LockMask, c->win, False, BUTTONMASK,
@@ -46,12 +52,10 @@ grabbuttons(Client *c, Bool focus)
 	else
 		XGrabButton(dpy, AnyButton, AnyModifier, c->win, False, BUTTONMASK,
 				GrabModeAsync, GrabModeSync, None, None);
-
 }
 
 static void
-resizetitle(Client *c)
-{
+resizetitle(Client *c) {
 	c->tw = textw(c->name);
 	if(c->tw > c->w)
 		c->tw = c->w + 2;
@@ -61,48 +65,53 @@ resizetitle(Client *c)
 		XMoveResizeWindow(dpy, c->twin, c->tx, c->ty, c->tw, c->th);
 	else
 		XMoveResizeWindow(dpy, c->twin, c->tx + 2 * sw, c->ty, c->tw, c->th);
-
 }
 
 static int
-xerrordummy(Display *dsply, XErrorEvent *ee)
-{
+xerrordummy(Display *dsply, XErrorEvent *ee) {
 	return 0;
 }
 
 /* extern functions */
 
 void
-ban(Client *c)
-{
+ban(Client *c) {
 	XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
 	XMoveWindow(dpy, c->twin, c->tx + 2 * sw, c->ty);
 }
 
 void
-focus(Client *c)
-{
-	Client *old = sel;
+focus(Client *c) {
+	Client *old;
 
-	if(!issel)
+	if(!issel || (c && !isvisible(c)))
 		return;
 	if(!sel)
 		sel = c;
 	else if(sel != c) {
-		if(sel->ismax)
+		if(maximized)
 			togglemax(NULL);
+		old = sel;
 		sel = c;
-		grabbuttons(old, False);
-		drawtitle(old);
+		if(old) {
+			grabbuttons(old, False);
+			drawtitle(old);
+		}
+	}
+	if(c) {
+		detachstack(c);
+		c->snext = stack;
+		stack = c;
+		grabbuttons(c, True);
+		drawtitle(c);
+		XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
 	}
-	grabbuttons(c, True);
-	drawtitle(c);
-	XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
+	else
+		XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
 }
 
 Client *
-getclient(Window w)
-{
+getclient(Window w) {
 	Client *c;
 
 	for(c = clients; c; c = c->next)
@@ -112,8 +121,7 @@ getclient(Window w)
 }
 
 Client *
-getctitle(Window w)
-{
+getctitle(Window w) {
 	Client *c;
 
 	for(c = clients; c; c = c->next)
@@ -123,8 +131,7 @@ getctitle(Window w)
 }
 
 void
-gravitate(Client *c, Bool invert)
-{
+gravitate(Client *c, Bool invert) {
 	int dx = 0, dy = 0;
 
 	switch(c->grav) {
@@ -178,8 +185,7 @@ gravitate(Client *c, Bool invert)
 }
 
 void
-killclient(Arg *arg)
-{
+killclient(Arg *arg) {
 	if(!sel)
 		return;
 	if(sel->proto & PROTODELWIN)
@@ -189,10 +195,8 @@ killclient(Arg *arg)
 }
 
 void
-manage(Window w, XWindowAttributes *wa)
-{
-	unsigned int i;
-	Client *c, *tc;
+manage(Window w, XWindowAttributes *wa) {
+	Client *c;
 	Window trans;
 	XSetWindowAttributes twa;
 
@@ -206,7 +210,7 @@ manage(Window w, XWindowAttributes *wa)
 	c->th = bh;
 
 	c->border = 0;
-	setsize(c);
+	updatesize(c);
 
 	if(c->x + c->w + 2 > sw)
 		c->x = sw - c->w - 2;
@@ -230,35 +234,30 @@ manage(Window w, XWindowAttributes *wa)
 			DefaultVisual(dpy, screen),
 			CWOverrideRedirect | CWBackPixmap | CWEventMask, &twa);
 
-	if(clients)
-		clients->prev = c;
-	c->next = clients;
-	clients = c;
-
 	grabbuttons(c, False);
-
-	if((tc = getclient(trans))) /* inherit tags */
-		for(i = 0; i < ntags; i++)
-			c->tags[i] = tc->tags[i];
-	else
-		settags(c);
+	settags(c, getclient(trans));
 	if(!c->isfloat)
 		c->isfloat = trans
 			|| (c->maxw && c->minw &&
 				c->maxw == c->minw && c->maxh == c->minh);
-	settitle(c);
-	if(isvisible(c))
-		sel = c;
-	arrange(NULL);
+
+	if(clients)
+		clients->prev = c;
+	c->next = clients;
+	c->snext = stack;
+	stack = clients = c;
+
+	updatetitle(c);
+	ban(c);
 	XMapWindow(dpy, c->win);
 	XMapWindow(dpy, c->twin);
 	if(isvisible(c))
 		focus(c);
+	arrange(NULL);
 }
 
 void
-resize(Client *c, Bool sizehints, Corner sticky)
-{
+resize(Client *c, Bool sizehints, Corner sticky) {
 	int bottom = c->y + c->h;
 	int right = c->x + c->w;
 	XWindowChanges wc;
@@ -282,6 +281,16 @@ resize(Client *c, Bool sizehints, Corner sticky)
 	if(sticky == BotLeft || sticky == BotRight)
 		c->y = bottom - c->h;
 
+	/* offscreen appearance fixes */
+	if(c->x + c->w < 0)
+		c->x = 0;
+	if(c->y + c->h < bh)
+		c->y = bh;
+	if(c->x > sw)
+		c->x = sw - c->w;
+	if(c->y > sh)
+		c->y = sh - c->h;
+
 	resizetitle(c);
 	wc.x = c->x;
 	wc.y = c->y;
@@ -291,13 +300,12 @@ resize(Client *c, Bool sizehints, Corner sticky)
 		wc.border_width = 0;
 	else
 		wc.border_width = 1;
-	XConfigureWindow(dpy, c->win, CWX|CWY|CWWidth|CWHeight|CWBorderWidth, &wc);
+	XConfigureWindow(dpy, c->win, CWX | CWY | CWWidth | CWHeight | CWBorderWidth, &wc);
 	XSync(dpy, False);
 }
 
 void
-setsize(Client *c)
-{
+updatesize(Client *c) {
 	long msize;
 	XSizeHints size;
 
@@ -335,8 +343,7 @@ setsize(Client *c)
 }
 
 void
-settitle(Client *c)
-{
+updatetitle(Client *c) {
 	char **list = NULL;
 	int n;
 	XTextProperty name;
@@ -363,15 +370,15 @@ settitle(Client *c)
 }
 
 void
-togglemax(Arg *arg)
-{
+togglemax(Arg *arg) {
 	int ox, oy, ow, oh;
+	Client *c;
 	XEvent ev;
 
 	if(!sel)
 		return;
 
-	if((sel->ismax = !sel->ismax)) {
+	if((maximized = !maximized)) {
 		ox = sel->x;
 		oy = sel->y;
 		ow = sel->w;
@@ -382,6 +389,9 @@ togglemax(Arg *arg)
 		sel->h = sh - 2 - bh;
 
 		restack();
+		for(c = getnext(clients); c; c = getnext(c->next))
+			if(c != sel)
+				ban(c);
 		resize(sel, arrange == dofloat, TopLeft);
 
 		sel->x = ox;
@@ -390,42 +400,33 @@ togglemax(Arg *arg)
 		sel->h = oh;
 	}
 	else
-		resize(sel, False, TopLeft);
+		arrange(NULL);
 	while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
 }
 
 void
-unmanage(Client *c)
-{
-	Client *tc;
-	Window trans;
+unmanage(Client *c) {
+	Client *nc;
+
+	/* The server grab construct avoids race conditions. */
 	XGrabServer(dpy);
 	XSetErrorHandler(xerrordummy);
 
-	XGetTransientForHint(dpy, c->win, &trans);
+	detach(c);
+	detachstack(c);
+	if(sel == c) {
+		for(nc = stack; nc && !isvisible(nc); nc = nc->snext);
+		focus(nc);
+	}
 
 	XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
 	XDestroyWindow(dpy, c->twin);
 
-	if(c->prev)
-		c->prev->next = c->next;
-	if(c->next)
-		c->next->prev = c->prev;
-	if(c == clients)
-		clients = c->next;
-	if(sel == c) {
-		if(trans && (tc = getclient(trans)) && isvisible(tc))
-			sel = tc;
-		else
-			sel = getnext(clients);
-	}
 	free(c->tags);
 	free(c);
 
 	XSync(dpy, False);
 	XSetErrorHandler(xerror);
 	XUngrabServer(dpy);
-	if(sel)
-		focus(sel);
 	arrange(NULL);
 }