From a5ef1a0a857849164ac300520050810e13615f7b Mon Sep 17 00:00:00 2001
From: Aryadev Chavali <aryadev@aryadevchavali.com>
Date: Wed, 24 Jul 2024 16:19:34 +0100
Subject: Added dwm-sticky patch

Make sticky windows, which are kinda like Mod-Shift-0 tagged windows
but easier to manage.
---
 dwm.c | 49 ++++++++++++++++++++++++++++++++++++++++++-------
 1 file changed, 42 insertions(+), 7 deletions(-)

(limited to 'dwm.c')

diff --git a/dwm.c b/dwm.c
index 46e6f84..1a88bf2 100644
--- a/dwm.c
+++ b/dwm.c
@@ -50,8 +50,7 @@
 #define INTERSECT(x,y,w,h,m)    (MAX(0, MIN((x)+(w),(m)->wx+(m)->ww) - MAX((x),(m)->wx)) \
                                * MAX(0, MIN((y)+(h),(m)->wy+(m)->wh) - MAX((y),(m)->wy)))
 #define ISVISIBLEONTAG(C, T)    ((C->tags & T))
-#define ISVISIBLE(C)            ((C->tags & C->mon->tagset[C->mon->seltags]))
-/* #define ISVISIBLE(C)            ISVISIBLEONTAG(C, C->mon->tagset[C->mon->seltags]) */
+#define ISVISIBLE(C)            ((C->tags & C->mon->tagset[C->mon->seltags]) || C->issticky)
 #define LENGTH(X)               (sizeof X / sizeof X[0])
 #define MOUSEMASK               (BUTTONMASK|PointerMotionMask)
 #define WIDTH(X)                ((X)->w + 2 * (X)->bw)
@@ -63,7 +62,7 @@
 enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */
 enum { SchemeNorm, SchemeSel, SchemeStatus, SchemeTagsSel, SchemeTagsNorm, SchemeInfoSel, SchemeInfoNorm }; /* color schemes */
 enum { NetSupported, NetWMName, NetWMState, NetWMCheck,
-       NetWMFullscreen, NetActiveWindow, NetWMWindowType,
+       NetWMFullscreen, NetWMSticky, NetActiveWindow, NetWMWindowType,
        NetWMWindowTypeDialog, NetClientList, NetLast }; /* EWMH atoms */
 enum { WMProtocols, WMDelete, WMState, WMTakeFocus, WMLast }; /* default atoms */
 enum { ClkTagBar, ClkLtSymbol, ClkStatusText, ClkWinTitle,
@@ -94,7 +93,7 @@ struct Client {
 	int basew, baseh, incw, inch, maxw, maxh, minw, minh, hintsvalid;
 	int bw, oldbw;
 	unsigned int tags;
-	int isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen;
+	int isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen, issticky;
 	Client *next;
 	Client *snext;
 	Monitor *mon;
@@ -207,6 +206,7 @@ static void sendmon(Client *c, Monitor *m);
 static void setclientstate(Client *c, long state);
 static void setfocus(Client *c);
 static void setfullscreen(Client *c, int fullscreen);
+static void setsticky(Client *c, int sticky);
 static void setgaps(const Arg *arg);
 static void setlayout(const Arg *arg);
 static void setmfact(const Arg *arg);
@@ -219,6 +219,7 @@ static void tagmon(const Arg *arg);
 static void tile(Monitor *m);
 static void togglebar(const Arg *arg);
 static void togglefloating(const Arg *arg);
+static void togglesticky(const Arg *arg);
 static void togglescratch(const Arg *arg);
 static void toggletag(const Arg *arg);
 static void toggleview(const Arg *arg);
@@ -572,9 +573,14 @@ clientmessage(XEvent *e)
 		return;
 	if (cme->message_type == netatom[NetWMState]) {
 		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[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)));
+		if (cme->data.l[1] == netatom[NetWMSticky]
+				|| cme->data.l[2] == netatom[NetWMSticky])
+			setsticky(c, (cme->data.l[0] == 1 ||
+										(cme->data.l[0] == 2 && !c->issticky)));
 	} else if (cme->message_type == netatom[NetActiveWindow]) {
 		if (c != selmon->sel && !c->isurgent)
 			seturgent(c, 1);
@@ -1630,6 +1636,22 @@ setfullscreen(Client *c, int fullscreen)
 	}
 }
 
+void
+setsticky(Client *c, int sticky)
+{
+
+	if(sticky && !c->issticky) {
+		XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32,
+										PropModeReplace, (unsigned char *) &netatom[NetWMSticky], 1);
+		c->issticky = 1;
+	} else if(!sticky && c->issticky){
+		XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32,
+										PropModeReplace, (unsigned char *)0, 0);
+		c->issticky = 0;
+		arrange(c->mon);
+	}
+}
+
 void
 setgaps(const Arg *arg)
 {
@@ -1710,6 +1732,7 @@ setup(void)
 	netatom[NetWMState] = XInternAtom(dpy, "_NET_WM_STATE", False);
 	netatom[NetWMCheck] = XInternAtom(dpy, "_NET_SUPPORTING_WM_CHECK", False);
 	netatom[NetWMFullscreen] = XInternAtom(dpy, "_NET_WM_STATE_FULLSCREEN", False);
+	netatom[NetWMSticky] = XInternAtom(dpy, "_NET_WM_STATE_STICKY", False);
 	netatom[NetWMWindowType] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE", False);
 	netatom[NetWMWindowTypeDialog] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_DIALOG", False);
 	netatom[NetClientList] = XInternAtom(dpy, "_NET_CLIENT_LIST", False);
@@ -1868,6 +1891,15 @@ togglefloating(const Arg *arg)
 	arrange(selmon);
 }
 
+void
+togglesticky(const Arg *arg)
+{
+	if (!selmon->sel)
+		return;
+	setsticky(selmon->sel, !selmon->sel->issticky);
+	arrange(selmon);
+}
+
 void
 togglescratch(const Arg *arg)
 {
@@ -2208,6 +2240,9 @@ updatewindowtype(Client *c)
 
 	if (state == netatom[NetWMFullscreen])
 		setfullscreen(c, 1);
+	if (state == netatom[NetWMSticky]) {
+		setsticky(c, 1);
+	}
 	if (wtype == netatom[NetWMWindowTypeDialog])
 		c->isfloating = 1;
 }
-- 
cgit v1.2.3-13-gbd6f