X-Git-Url: https://jasonwoof.com/gitweb/?a=blobdiff_plain;f=dwm.c;h=a4447f6707480cfe9407ce5d87f44853815c1286;hb=a73de0cff42588d3dc3b40e4e8b198c847208dca;hp=c9495ec1fd12cb43b5466e2303e0a60a9a8dfb9d;hpb=883e09b2eb8b6a42289bc5a64294df4122d90e38;p=dwm.git

diff --git a/dwm.c b/dwm.c
index c9495ec..a4447f6 100644
--- a/dwm.c
+++ b/dwm.c
@@ -57,6 +57,7 @@ enum { WMProtocols, WMDelete, WMName, WMState, WMLast };/* default atoms */
 
 /* typedefs */
 typedef struct Client Client;
+
 struct Client {
 	char name[256];
 	int x, y, w, h;
@@ -185,6 +186,7 @@ void updatebarpos(void);
 void updatesizehints(Client *c);
 void updatetitle(Client *c);
 void view(const char *arg);
+void viewprevtag(const char *arg);	/* views previous selected tags */
 int xerror(Display *dpy, XErrorEvent *ee);
 int xerrordummy(Display *dsply, XErrorEvent *ee);
 int xerrorstart(Display *dsply, XErrorEvent *ee);
@@ -195,7 +197,7 @@ char stext[256];
 double mwfact;
 int screen, sx, sy, sw, sh, wax, way, waw, wah;
 int (*xerrorxlib)(Display *, XErrorEvent *);
-unsigned int bh, bpos, ntags;
+unsigned int bh, bpos;
 unsigned int blw = 0;
 unsigned int ltidx = 0; /* default */
 unsigned int nlayouts = 0;
@@ -218,7 +220,6 @@ void (*handler[LASTEvent]) (XEvent *) = {
 Atom wmatom[WMLast], netatom[NetLast];
 Bool otherwm, readin;
 Bool running = True;
-Bool *seltags;
 Bool selscreen = True;
 Client *clients = NULL;
 Client *sel = NULL;
@@ -232,6 +233,11 @@ Regs *regs = NULL;
 /* configuration, allows nested code to access above variables */
 #include "config.h"
 
+/* Statically define the number of tags. */
+unsigned int ntags = sizeof tags / sizeof tags[0];
+Bool seltags[sizeof tags / sizeof tags[0]] = {[0] = True};
+Bool prevtags[sizeof tags / sizeof tags[0]] = {[0] = True};
+
 /* functions*/
 void
 applyrules(Client *c) {
@@ -261,8 +267,7 @@ applyrules(Client *c) {
 	if(ch.res_name)
 		XFree(ch.res_name);
 	if(!matched)
-		for(i = 0; i < ntags; i++)
-			c->tags[i] = seltags[i];
+		memcpy(c->tags, seltags, sizeof seltags);
 }
 
 void
@@ -393,7 +398,6 @@ cleanup(void) {
 	XFreeCursor(dpy, cursor[CurMove]);
 	XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
 	XSync(dpy, False);
-	free(seltags);
 }
 
 void
@@ -999,14 +1003,13 @@ leavenotify(XEvent *e) {
 
 void
 manage(Window w, XWindowAttributes *wa) {
-	unsigned int i;
 	Client *c, *t = NULL;
 	Window trans;
 	Status rettrans;
 	XWindowChanges wc;
 
 	c = emallocz(sizeof(Client));
-	c->tags = emallocz(ntags * sizeof(Bool));
+	c->tags = emallocz(sizeof seltags);
 	c->win = w;
 	c->x = wa->x;
 	c->y = wa->y;
@@ -1041,8 +1044,7 @@ manage(Window w, XWindowAttributes *wa) {
 	if((rettrans = XGetTransientForHint(dpy, w, &trans) == Success))
 		for(t = clients; t && t->win != trans; t = t->next);
 	if(t)
-		for(i = 0; i < ntags; i++)
-			c->tags[i] = t->tags[i];
+		memcpy(c->tags, t->tags, sizeof seltags);
 	applyrules(c);
 	if(!c->isfloating)
 		c->isfloating = (rettrans == Success) || c->isfixed;
@@ -1467,9 +1469,6 @@ setup(void) {
 
 	/* init tags */
 	compileregs();
-	ntags = sizeof tags / sizeof tags[0];
-	seltags = emallocz(sizeof(Bool) * ntags);
-	seltags[0] = True;
 
 	/* init appearance */
 	dc.norm[ColBorder] = getcolor(NORMBORDERCOLOR);
@@ -1840,6 +1839,7 @@ void
 view(const char *arg) {
 	unsigned int i;
 
+	memcpy(prevtags, seltags, sizeof seltags);
 	for(i = 0; i < ntags; i++)
 		seltags[i] = arg == NULL;
 	i = idxoftag(arg);
@@ -1849,6 +1849,16 @@ view(const char *arg) {
 }
 
 void
+viewprevtag(const char *arg) {
+	static Bool tmptags[sizeof tags / sizeof tags[0]];
+
+	memcpy(tmptags, seltags, sizeof seltags);
+	memcpy(seltags, prevtags, sizeof seltags);
+	memcpy(prevtags, tmptags, sizeof seltags);
+	arrange();
+}
+
+void
 zoom(const char *arg) {
 	Client *c;