From 50514a2e9afc769d653da53965ba6e7f79adefc9 Mon Sep 17 00:00:00 2001
From: Francisco Tapia <link_1232@yahoo.com.mx>
Date: Mon, 10 Jan 2022 22:09:30 +0100
Subject: [PATCH] [PATCH] Selective fake full screen

---
 config.def.h |  8 ++++----
 dwm.c        | 30 +++++++++++++++++++++++-------
 2 files changed, 27 insertions(+), 11 deletions(-)

diff --git a/config.def.h b/config.def.h
index 2c224fe..8d797b1 100644
--- a/config.def.h
+++ b/config.def.h
@@ -31,10 +31,10 @@ static const Rule rules[] = {
 	 *	WM_CLASS(STRING) = instance, class
 	 *	WM_NAME(STRING) = title
 	 */
-	/* class      instance    title       tags mask     isfloating   isterminal noswallow ignoretransient monitor */
-	{ "Gimp",     NULL,       NULL,       0,            1,           0,         0,        0,              -1 },
-	{ "Firefox",  NULL,       NULL,       1 << 8,       0,           0,         0,        0,              -1 },
-	{ "st",       NULL,       NULL,       0,            0,           1,         1,        0,              -1 },
+	/* class      instance    title       tags mask     isfloating   isfakefullscreen   isterminal noswallow ignoretransient monitor */
+	{ "Gimp",     NULL,       NULL,       0,            1,           0,                 0,         0,        0,              -1 },
+	{ "Firefox",  NULL,       NULL,       1 << 8,       0,           1,                 0,         0,        0,              -1 },
+	{ "st",       NULL,       NULL,       0,            0,           0,                 1,         1,        0,              -1 },
 };
 
 /* layout(s) */
diff --git a/dwm.c b/dwm.c
index 629a1cf..04506e1 100644
--- a/dwm.c
+++ b/dwm.c
@@ -113,7 +113,7 @@ struct Client {
 	int basew, baseh, incw, inch, maxw, maxh, minw, minh;
 	int bw, oldbw;
 	unsigned int tags;
-	int isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen, isterminal, noswallow, ignoretransient;
+	int isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen, isfakefullscreen, isterminal, noswallow, ignoretransient;
 	pid_t pid;
 	Client *next;
 	Client *snext;
@@ -162,6 +162,7 @@ typedef struct {
 	const char *title;
 	unsigned int tags;
 	int isfloating;
+    int isfakefullscreen;
 	int isterminal;
 	int noswallow;
 	int ignoretransient;
@@ -357,6 +358,7 @@ applyrules(Client *c)
 		{
 			c->isterminal = r->isterminal;
 			c->isfloating = r->isfloating;
+            c->isfakefullscreen = r->isfakefullscreen;
 			c->ignoretransient = r->ignoretransient;
 			c->tags |= r->tags;
 			for (m = mons; m && m->num != r->monitor; m = m->next);
@@ -692,7 +694,8 @@ clientmessage(XEvent *e)
 		if (cme->data.l[1] == netatom[NetWMFullscreen]
 		|| cme->data.l[2] == netatom[NetWMFullscreen])
 			setfullscreen(c, (cme->data.l[0] == 1 /* _NET_WM_STATE_ADD    */
-				|| (cme->data.l[0] == 2 /* _NET_WM_STATE_TOGGLE */ && !c->isfullscreen)));
+				      || (cme->data.l[0] == 2 /* _NET_WM_STATE_TOGGLE */
+                                      && (!c->isfullscreen || c->isfakefullscreen))));
 	} else if (cme->message_type == netatom[NetActiveWindow]) {
 		if (c != selmon->sel && !c->isurgent)
 			seturgent(c, 1);
@@ -736,7 +739,8 @@ configurenotify(XEvent *e)
 			updatebars();
 			for (m = mons; m; m = m->next) {
 				for (c = m->clients; c; c = c->next)
-					if (c->isfullscreen)
+					if (c->isfullscreen
+                                        &&  !c->isfakefullscreen)
 						resizeclient(c, m->mx, m->my, m->mw, m->mh);
 				resizebarwin(m);
 			}
@@ -1357,7 +1361,8 @@ movemouse(const Arg *arg)
 
 	if (!(c = selmon->sel))
 		return;
-	if (c->isfullscreen) /* no support moving fullscreen windows by mouse */
+	if (c->isfullscreen
+	&&  !c->isfakefullscreen) /* no support moving fullscreen windows by mouse */
 		return;
 	restack(selmon);
 	ocx = c->x;
@@ -1562,7 +1567,8 @@ resizemouse(const Arg *arg)
 
 	if (!(c = selmon->sel))
 		return;
-	if (c->isfullscreen) /* no support resizing fullscreen windows by mouse */
+	if (c->isfullscreen
+	&&  !c->isfakefullscreen) /* no support resizing fullscreen windows by mouse */
 		return;
 	restack(selmon);
 	ocx = c->x;
@@ -1763,6 +1769,10 @@ setfullscreen(Client *c, int fullscreen)
 		XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32,
 			PropModeReplace, (unsigned char*)&netatom[NetWMFullscreen], 1);
 		c->isfullscreen = 1;
+		if (c->isfakefullscreen) {
+			resizeclient(c, c->x, c->y, c->w, c->h);
+			return;
+		}
 		c->oldstate = c->isfloating;
 		c->oldbw = c->bw;
 		c->bw = 0;
@@ -1773,6 +1783,10 @@ setfullscreen(Client *c, int fullscreen)
 		XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32,
 			PropModeReplace, (unsigned char*)0, 0);
 		c->isfullscreen = 0;
+		if (c->isfakefullscreen) {
+			resizeclient(c, c->x, c->y, c->w, c->h);
+			return;
+		}
 		c->isfloating = c->oldstate;
 		c->bw = c->oldbw;
 		c->x = c->oldx;
@@ -1937,7 +1951,8 @@ showhide(Client *c)
 	if (ISVISIBLE(c)) {
 		/* show clients top down */
 		XMoveWindow(dpy, c->win, c->x, c->y);
-		if ((!c->mon->lt[c->mon->sellt]->arrange || c->isfloating) && !c->isfullscreen)
+		if ((!c->mon->lt[c->mon->sellt]->arrange || c->isfloating)
+                &&  (!c->isfullscreen || c->isfakefullscreen))
 			resize(c, c->x, c->y, c->w, c->h, 0);
 		showhide(c->snext);
 	} else {
@@ -2066,7 +2081,8 @@ togglefloating(const Arg *arg)
 {
 	if (!selmon->sel)
 		return;
-	if (selmon->sel->isfullscreen) /* no support for fullscreen windows */
+	if (selmon->sel->isfullscreen
+	&&  !selmon->sel->isfakefullscreen) /* no support for fullscreen windows */
 		return;
 	selmon->sel->isfloating = !selmon->sel->isfloating || selmon->sel->isfixed;
 	if (selmon->sel->isfloating)