Adding steam patch

README.md

@@ -15,7 +15,7 @@ Refer to [https://dwm.suckless.org/](https://dwm.suckless.org/) for details on t
 
 ### Changelog:
 
-2020-08-10 - Added cool autostart and insets patches
+2020-08-10 - Added cool autostart, insets and steam patches
 
 2020-08-02 - Added reorganizetags patch
 
@@ -446,6 +446,9 @@ Refer to [https://dwm.suckless.org/](https://dwm.suckless.org/) for details on t
    - [statuspadding](https://dwm.suckless.org/patches/statuspadding/)
       - adds configuration options for horizontal and vertical padding in the status bar
 
+   - [steam](https://github.com/bakkeby/patches/wiki/steam)
+      - a minor patch that works around the issue of floating Steam windows jumping around the screen when they receive focus
+
    - [sticky](https://dwm.suckless.org/patches/sticky/)
       - adds toggleable keyboard shortcut to make a client 'sticky', i.e. visible on all tags
 

dwm.c

@@ -294,6 +294,9 @@ struct Client {
 	int isterminal, noswallow;
 	pid_t pid;
 	#endif // SWALLOW_PATCH
+	#if STEAM_PATCH
+	int issteam;
+	#endif // STEAM_PATCH
 	#if STICKY_PATCH
 	int issticky;
 	#endif // STICKY_PATCH
@@ -685,6 +688,11 @@ applyrules(Client *c)
 	gettextprop(c->win, wmatom[WMWindowRole], role, sizeof(role));
 	#endif // WINDOWROLERULE_PATCH
 
+	#if STEAM_PATCH
+	if (strstr(class, "Steam") || strstr(class, "steam_app_"))
+		c->issteam = 1;
+	#endif // STEAM_PATCH
+
 	for (i = 0; i < LENGTH(rules); i++) {
 		r = &rules[i];
 		if ((!r->title || strstr(c->name, r->title))
@@ -1198,6 +1206,18 @@ configurerequest(XEvent *e)
 			c->bw = ev->border_width;
 		else if (c->isfloating || !selmon->lt[selmon->sellt]->arrange) {
 			m = c->mon;
+			#if STEAM_PATCH
+			if (!c->issteam) {
+				if (ev->value_mask & CWX) {
+					c->oldx = c->x;
+					c->x = m->mx + ev->x;
+				}
+				if (ev->value_mask & CWY) {
+					c->oldy = c->y;
+					c->y = m->my + ev->y;
+				}
+			}
+			#else
 			if (ev->value_mask & CWX) {
 				c->oldx = c->x;
 				c->x = m->mx + ev->x;
@@ -1206,6 +1226,7 @@ configurerequest(XEvent *e)
 				c->oldy = c->y;
 				c->y = m->my + ev->y;
 			}
+			#endif // STEAM_PATCH
 			if (ev->value_mask & CWWidth) {
 				c->oldw = c->w;
 				c->w = ev->width;

patches.def.h

@@ -717,6 +717,17 @@
  */
 #define STACKER_PATCH 0
 
+/* Steam, and steam windows (games), trigger a ConfigureNotify request every time the window
+ * gets focus. More so, the configure event passed along from Steam tends to have the wrong
+ * x and y co-ordinates which can make the window, if floating, jump around the screen.
+ *
+ * This patch works around this age-old issue by ignoring the x and y co-ordinates for
+ * ConfigureNotify requests relating to Steam windows.
+ *
+ * https://github.com/bakkeby/patches/wiki/steam
+ */
+#define STEAM_PATCH 0
+
 /* Adds toggleable keyboard shortcut to make a client 'sticky', i.e. visible on all tags.
  * https://dwm.suckless.org/patches/sticky/
  */