patched files

1 files changed, 233 insertions, 16 deletions

diff --git a/dwl.c b/dwl.c
index 8556cba..227e1c4 100644
--- a/dwl.c
+++ b/dwl.c
@@ -90,7 +90,8 @@ typedef struct {
 } Button;
 
 typedef struct Monitor Monitor;
-typedef struct {
+typedef struct Client Client;
+struct Client{
 	/* Must keep these three elements in this order */
 	unsigned int type; /* XDGShell or X11* */
 	struct wlr_box geom;  /* layout-relative, includes border */
@@ -119,9 +120,12 @@ typedef struct {
 #endif
 	unsigned int bw;
 	unsigned int tags;
-	int isfloating, isurgent, isfullscreen;
+	int isfloating, isurgent, isfullscreen, isterm, noswallow;
 	uint32_t resize; /* configure serial of a pending resize */
-} Client;
+	pid_t pid;
+	Client *swallowing, *swallowedby;
+        char scratchkey;
+};
 
 typedef struct {
 	uint32_t singular_anchor;
@@ -200,7 +204,10 @@ typedef struct {
 	const char *title;
 	unsigned int tags;
 	int isfloating;
+	int isterm;
+	int noswallow;
 	int monitor;
+	const char scratchkey;
 } Rule;
 
 /* function declarations */
@@ -213,6 +220,7 @@ static void arrange(Monitor *m);
 static void arrangelayer(Monitor *m, struct wl_list *list,
 		struct wlr_box *usable_area, int exclusive);
 static void arrangelayers(Monitor *m);
+static void autostartexec(void);
 static void axisnotify(struct wl_listener *listener, void *data);
 static void buttonpress(struct wl_listener *listener, void *data);
 static void chvt(const Arg *arg);
@@ -263,7 +271,7 @@ static void quit(const Arg *arg);
 static void quitsignal(int signo);
 static void rendermon(struct wl_listener *listener, void *data);
 static void requeststartdrag(struct wl_listener *listener, void *data);
-static void resize(Client *c, struct wlr_box geo, int interact);
+static void resize(Client *c, struct wlr_box geo, int interact, int draw_borders);
 static void run(char *startup_cmd);
 static Client *selclient(void);
 static void setcursor(struct wl_listener *listener, void *data);
@@ -277,12 +285,14 @@ static void setsel(struct wl_listener *listener, void *data);
 static void setup(void);
 static void sigchld(int unused);
 static void spawn(const Arg *arg);
+static void spawnscratch(const Arg *arg);
 static void startdrag(struct wl_listener *listener, void *data);
 static void tag(const Arg *arg);
 static void tagmon(const Arg *arg);
 static void tile(Monitor *m);
 static void togglefloating(const Arg *arg);
 static void togglefullscreen(const Arg *arg);
+static void togglescratch(const Arg *arg);
 static void toggletag(const Arg *arg);
 static void toggleview(const Arg *arg);
 static void unmaplayersurfacenotify(struct wl_listener *listener, void *data);
@@ -292,10 +302,15 @@ static void updatetitle(struct wl_listener *listener, void *data);
 static void urgent(struct wl_listener *listener, void *data);
 static void view(const Arg *arg);
 static void virtualkeyboard(struct wl_listener *listener, void *data);
+static void warpcursor(const Client *c);
 static Monitor *xytomon(double x, double y);
 static struct wlr_scene_node *xytonode(double x, double y, struct wlr_surface **psurface,
 		Client **pc, LayerSurface **pl, double *nx, double *ny);
 static void zoom(const Arg *arg);
+static pid_t getparentprocess(pid_t p);
+static int isdescprocess(pid_t p, pid_t c);
+static Client *termforwin(Client *w);
+static void swallow(Client *c, Client *w);
 
 /* variables */
 static const char broken[] = "broken";
@@ -372,7 +387,9 @@ static Atom netatom[NetLast];
 #endif
 
 /* configuration, allows nested code to access above variables */
+#include "push.h"
 #include "config.h"
+#include "push.c"
 
 /* attempt to encapsulate suck into one file */
 #include "client.h"
@@ -380,6 +397,9 @@ static Atom netatom[NetLast];
 /* compile-time check if all tags fit into an unsigned int bit array. */
 struct NumTags { char limitexceeded[LENGTH(tags) > 31 ? -1 : 1]; };
 
+static pid_t *autostart_pids;
+static size_t autostart_len;
+
 /* function implementations */
 void
 applybounds(Client *c, struct wlr_box *bbox)
@@ -407,6 +427,29 @@ applybounds(Client *c, struct wlr_box *bbox)
 }
 
 void
+autostartexec(void) {
+	const char *const *p;
+	size_t i = 0;
+
+	/* count entries */
+	for (p = autostart; *p; autostart_len++, p++)
+		while (*++p);
+
+	autostart_pids = calloc(autostart_len, sizeof(pid_t));
+	for (p = autostart; *p; i++, p++) {
+		if ((autostart_pids[i] = fork()) == 0) {
+			setsid();
+			execvp(*p, (char *const *)p);
+			fprintf(stderr, "dwl: execvp %s\n", *p);
+			perror(" failed");
+			_exit(EXIT_FAILURE);
+		}
+		/* skip arguments */
+		while (*++p);
+	}
+}
+
+void
 applyexclusive(struct wlr_box *usable_area,
 		uint32_t anchor, int32_t exclusive,
 		int32_t margin_top, int32_t margin_right,
@@ -471,6 +514,7 @@ applyrules(Client *c)
 	Monitor *mon = selmon, *m;
 
 	c->isfloating = client_is_float_type(c);
+	c->scratchkey = 0;
 	if (!(appid = client_get_appid(c)))
 		appid = broken;
 	if (!(title = client_get_title(c)))
@@ -480,6 +524,9 @@ applyrules(Client *c)
 		if ((!r->title || strstr(title, r->title))
 				&& (!r->id || strstr(appid, r->id))) {
 			c->isfloating = r->isfloating;
+                        c->scratchkey = r->scratchkey;
+			c->isterm     = r->isterm;
+			c->noswallow  = r->noswallow;
 			newtags |= r->tags;
 			i = 0;
 			wl_list_for_each(m, &mons, link)
@@ -487,6 +534,8 @@ applyrules(Client *c)
 					mon = m;
 		}
 	}
+	c->geom.x = (mon->w.width - c->geom.width) / 2 + mon->m.x;
+	c->geom.y = (mon->w.height - c->geom.height) / 2 + mon->m.y;
 	wlr_scene_node_reparent(c->scene, layers[c->isfloating ? LyrFloat : LyrTile]);
 	setmon(c, mon, newtags);
 }
@@ -501,6 +550,9 @@ arrange(Monitor *m)
 	if (m->lt[m->sellt]->arrange)
 		m->lt[m->sellt]->arrange(m);
 	motionnotify(0);
+        c = selclient();
+        if (cursor_warp && c)
+                warpcursor(c);
 }
 
 void
@@ -771,7 +823,7 @@ closemon(Monitor *m)
 	wl_list_for_each(c, &clients, link) {
 		if (c->isfloating && c->geom.x > m->m.width)
 			resize(c, (struct wlr_box){.x = c->geom.x - m->w.width, .y = c->geom.y,
-				.width = c->geom.width, .height = c->geom.height}, 0);
+				.width = c->geom.width, .height = c->geom.height}, 0, 1);
 		if (c->mon == m)
 			setmon(c, selmon, c->tags);
 	}
@@ -992,6 +1044,8 @@ createnotify(struct wl_listener *listener, void *data)
 	c->surface.xdg = xdg_surface;
 	c->bw = borderpx;
 
+	wl_client_get_credentials(c->surface.xdg->client->client, &c->pid, NULL, NULL);
+
 	LISTEN(&xdg_surface->events.map, &c->map, mapnotify);
 	LISTEN(&xdg_surface->events.unmap, &c->unmap, unmapnotify);
 	LISTEN(&xdg_surface->events.destroy, &c->destroy, destroynotify);
@@ -1131,6 +1185,10 @@ focusclient(Client *c, int lift)
 	if (exclusive_focus)
 		return;
 
+	/* Warp cursor to center of client if it is outside */
+	if (cursor_warp && c)
+		warpcursor(c);
+
 	/* Raise client in stacking order if requested */
 	if (c && lift)
 		wlr_scene_node_raise_to_top(c->scene);
@@ -1253,6 +1311,61 @@ fullscreennotify(struct wl_listener *listener, void *data)
 	setfullscreen(c, fullscreen);
 }
 
+pid_t
+getparentprocess(pid_t p)
+{
+	unsigned int v = 0;
+
+	FILE *f;
+	char buf[256];
+	snprintf(buf, sizeof(buf) - 1, "/proc/%u/stat", (unsigned)p);
+
+	if (!(f = fopen(buf, "r")))
+		return 0;
+
+	fscanf(f, "%*u %*s %*c %u", &v);
+	fclose(f);
+
+	return (pid_t)v;
+}
+
+int
+isdescprocess(pid_t p, pid_t c)
+{
+	while (p != c && c != 0)
+		c = getparentprocess(c);
+
+	return (int)c;
+}
+
+Client *
+termforwin(Client *w)
+{
+	Client *c;
+
+	if (!w->pid || w->isterm || w->noswallow)
+		return NULL;
+
+	wl_list_for_each(c, &clients, link)
+		if (c->isterm && !c->swallowing && c->pid && isdescprocess(c->pid, w->pid))
+			return c;
+
+	return NULL;
+}
+
+void
+swallow(Client *c, Client *w) {
+		c->bw = w->bw;
+		c->isfloating = w->isfloating;
+		c->isurgent = w->isurgent;
+		c->isfullscreen = w->isfullscreen;
+		resize(c, w->geom, 0, 0);
+		wl_list_insert(&w->link, &c->link);
+		wl_list_insert(&w->flink, &c->flink);
+		wlr_scene_node_set_enabled(w->scene, 0);
+		wlr_scene_node_set_enabled(c->scene, 1);
+}
+
 void
 incnmaster(const Arg *arg)
 {
@@ -1442,6 +1555,19 @@ mapnotify(struct wl_listener *listener, void *data)
 		setfullscreen(c, 1);
 
 	c->mon->un_map = 1;
+	if (!c->noswallow) {
+			Client *p = termforwin(c);
+			if (p) {
+					c->swallowedby = p;
+					p->swallowing  = c;
+					wl_list_remove(&c->link);
+					wl_list_remove(&c->flink);
+					swallow(c,p);
+					wl_list_remove(&p->link);
+					wl_list_remove(&p->flink);
+			}
+			arrange(c->mon);
+	}
 }
 
 void
@@ -1452,7 +1578,7 @@ monocle(Monitor *m)
 	wl_list_for_each(c, &clients, link) {
 		if (!VISIBLEON(c, m) || c->isfloating || c->isfullscreen)
 			continue;
-		resize(c, m->w, 0);
+		resize(c, m->w, 0, !smartborders);
 	}
 	focusclient(focustop(m), 1);
 }
@@ -1495,11 +1621,11 @@ motionnotify(uint32_t time)
 	if (cursor_mode == CurMove) {
 		/* Move the grabbed client to the new position. */
 		resize(grabc, (struct wlr_box){.x = cursor->x - grabcx, .y = cursor->y - grabcy,
-			.width = grabc->geom.width, .height = grabc->geom.height}, 1);
+			.width = grabc->geom.width, .height = grabc->geom.height}, 1, 1);
 		return;
 	} else if (cursor_mode == CurResize) {
 		resize(grabc, (struct wlr_box){.x = grabc->geom.x, .y = grabc->geom.y,
-			.width = cursor->x - grabc->geom.x, .height = cursor->y - grabc->geom.y}, 1);
+			.width = cursor->x - grabc->geom.x, .height = cursor->y - grabc->geom.y}, 1, 1);
 		return;
 	}
 
@@ -1717,6 +1843,16 @@ printstatus(void)
 void
 quit(const Arg *arg)
 {
+	size_t i;
+
+	/* kill child processes */
+	for (i = 0; i < autostart_len; i++) {
+		if (0 < autostart_pids[i]) {
+			kill(autostart_pids[i], SIGTERM);
+			waitpid(autostart_pids[i], NULL, 0);
+		}
+	}
+
 	wl_display_terminate(dpy);
 }
 
@@ -1772,10 +1908,11 @@ requeststartdrag(struct wl_listener *listener, void *data)
 }
 
 void
-resize(Client *c, struct wlr_box geo, int interact)
+resize(Client *c, struct wlr_box geo, int interact, int draw_borders)
 {
 	struct wlr_box *bbox = interact ? &sgeom : &c->mon->w;
 	c->geom = geo;
+	c->bw = draw_borders ? borderpx : 0;
 	applybounds(c, bbox);
 
 	/* Update scene-graph, including borders */
@@ -1804,6 +1941,7 @@ run(char *startup_cmd)
 	setenv("WAYLAND_DISPLAY", socket, 1);
 
 	/* Now that the socket exists, run the startup command */
+	autostartexec();
 	if (startup_cmd) {
 		int piperw[2];
 		if (pipe(piperw) < 0)
@@ -1881,6 +2019,8 @@ setfloating(Client *c, int floating)
 {
 	c->isfloating = floating;
 	wlr_scene_node_reparent(c->scene, layers[c->isfloating ? LyrFloat : LyrTile]);
+	if (c->isfloating && !c->bw)
+		resize(c, c->mon->m, 0, 1);
 	arrange(c->mon);
 	printstatus();
 }
@@ -1894,7 +2034,7 @@ setfullscreen(Client *c, int fullscreen)
 
 	if (fullscreen) {
 		c->prev = c->geom;
-		resize(c, c->mon->m, 0);
+		resize(c, c->mon->m, 0, 0);
 		/* The xdg-protocol specifies:
 		 *
 		 * If the fullscreened surface is not opaque, the compositor must make
@@ -1912,7 +2052,7 @@ setfullscreen(Client *c, int fullscreen)
 	} else {
 		/* restore previous size instead of arrange for floating windows since
 		 * client positions are set by the user and cannot be recalculated */
-		resize(c, c->prev, 0);
+		resize(c, c->prev, 0, 1);
 		if (c->fullscreen_bg) {
 			wlr_scene_node_destroy(&c->fullscreen_bg->node);
 			c->fullscreen_bg = NULL;
@@ -1929,6 +2069,12 @@ setlayout(const Arg *arg)
 		selmon->sellt ^= 1;
 	if (arg && arg->v)
 		selmon->lt[selmon->sellt] = (Layout *)arg->v;
+	if (!selmon->lt[selmon->sellt]->arrange) {
+		/* floating layout, draw borders around all clients */
+		Client *c;
+		wl_list_for_each(c, &clients, link)
+			resize(c, c->mon->m, 0, 1);
+	}
 	/* TODO change layout symbol? */
 	arrange(selmon);
 	printstatus();
@@ -1965,7 +2111,7 @@ setmon(Client *c, Monitor *m, unsigned int newtags)
 	}
 	if (m) {
 		/* Make sure window actually overlaps with the monitor */
-		resize(c, c->geom, 0);
+		resize(c, c->geom, 0, 1);
 		wlr_surface_send_enter(client_surface(c), m->wlr_output);
 		c->tags = newtags ? newtags : m->tagset[m->seltags]; /* assign tags of target monitor */
 		arrange(m);
@@ -2179,11 +2325,24 @@ sigchld(int unused)
 	 * setting our own disposition for SIGCHLD.
 	 */
 	pid_t pid;
+
 	if (signal(SIGCHLD, sigchld) == SIG_ERR)
 		die("can't install SIGCHLD handler:");
-	while (0 < (pid = waitpid(-1, NULL, WNOHANG)))
+	while (0 < (pid = waitpid(-1, NULL, WNOHANG))) {
+		pid_t *p, *lim;
 		if (pid == child_pid)
 			child_pid = -1;
+		if (!(p = autostart_pids))
+			continue;
+		lim = &p[autostart_len];
+
+		for (; p < lim; p++) {
+			if (*p == pid) {
+				*p = -1;
+				break;
+			}
+		}
+	}
 }
 
 void
@@ -2197,6 +2356,16 @@ spawn(const Arg *arg)
 	}
 }
 
+void spawnscratch(const Arg *arg)
+{
+	if (fork() == 0) {
+		dup2(STDERR_FILENO, STDOUT_FILENO);
+		setsid();
+		execvp(((char **)arg->v)[1], ((char **)arg->v)+1);
+		die("dwl: execvp %s failed:", ((char **)arg->v)[1]);
+	}
+}
+
 void
 startdrag(struct wl_listener *listener, void *data)
 {
@@ -2234,7 +2403,7 @@ tagmon(const Arg *arg)
 void
 tile(Monitor *m)
 {
-	unsigned int i, n = 0, mw, my, ty;
+	unsigned int i, n = 0, mw, my, ty, draw_borders = 1;
 	Client *c;
 
 	wl_list_for_each(c, &clients, link)
@@ -2243,6 +2412,9 @@ tile(Monitor *m)
 	if (n == 0)
 		return;
 
+	if (n == smartborders)
+		draw_borders = 0;
+
 	if (n > m->nmaster)
 		mw = m->nmaster ? m->w.width * m->mfact : 0;
 	else
@@ -2253,11 +2425,11 @@ tile(Monitor *m)
 			continue;
 		if (i < m->nmaster) {
 			resize(c, (struct wlr_box){.x = m->w.x, .y = m->w.y + my, .width = mw,
-				.height = (m->w.height - my) / (MIN(n, m->nmaster) - i)}, 0);
+				.height = (m->w.height - my) / (MIN(n, m->nmaster) - i)}, 0, draw_borders);
 			my += c->geom.height;
 		} else {
 			resize(c, (struct wlr_box){.x = m->w.x + mw, .y = m->w.y + ty,
-				.width = m->w.width - mw, .height = (m->w.height - ty) / (n - i)}, 0);
+				.width = m->w.width - mw, .height = (m->w.height - ty) / (n - i)}, 0, draw_borders);
 			ty += c->geom.height;
 		}
 		i++;
@@ -2282,6 +2454,29 @@ togglefullscreen(const Arg *arg)
 }
 
 void
+togglescratch(const Arg *arg)
+{
+	Client *c;
+	unsigned int found = 0;
+
+	/* search for first window that matches the scratchkey */
+	wl_list_for_each(c, &clients, link)
+		if (c->scratchkey == ((char**)arg->v)[0][0]) {
+			found = 1;
+			break;
+		}
+
+	if (found) {
+		c->tags = VISIBLEON(c, selmon) ? 0 : selmon->tagset[selmon->seltags];
+
+		focusclient(c->tags == 0 ? focustop(selmon) : c, 1);
+		arrange(selmon);
+	} else{
+		spawnscratch(arg);
+	}
+}
+
+void
 toggletag(const Arg *arg)
 {
 	unsigned int newtags;
@@ -2334,6 +2529,16 @@ unmapnotify(struct wl_listener *listener, void *data)
 		cursor_mode = CurNormal;
 		grabc = NULL;
 	}
+	if (c->swallowing) {
+			c->swallowing->swallowedby = NULL;
+			c->swallowing = NULL;
+	}
+
+	if (c->swallowedby) {
+			swallow(c->swallowedby, c);
+			c->swallowedby->swallowing = NULL;
+			c->swallowedby = NULL;
+	}
 
 	if (c->mon)
 		c->mon->un_map = 1;
@@ -2435,6 +2640,18 @@ virtualkeyboard(struct wl_listener *listener, void *data)
 	createkeyboard(device);
 }
 
+void
+warpcursor(const Client *c) {
+	if (cursor->x < c->geom.x ||
+		cursor->x > c->geom.x + c->geom.width ||
+		cursor->y < c->geom.y ||
+		cursor->y > c->geom.y + c->geom.height)
+		wlr_cursor_warp_closest(cursor,
+			  NULL,
+			  c->geom.x + c->geom.width / 2.0,
+			  c->geom.y + c->geom.height / 2.0);
+}
+
 Monitor *
 xytomon(double x, double y)
 {