Added scratchpad

3 files changed, 133 insertions, 2 deletions

diff --git a/config.def.h b/config.def.h
index aa108b2..885ea23 100644
--- a/config.def.h
+++ b/config.def.h
@@ -14,6 +14,7 @@ static const float urgentcolor[]           = COLOR(0x00000055);
 /* This conforms to the xdg-protocol. Set the alpha to zero to restore the old behavior */
 static const float fullscreen_bg[]         = {0.0f, 0.0f, 0.0f, 1.0f}; /* You can also use glsl colors */
 
+#define SCRATCHPAD_COUNT 3
 /* tagging - TAGCOUNT must be no greater than 31 */
 #define TAGCOUNT (9)
 
@@ -134,6 +135,9 @@ static const Key keys[] = {
 	{ MODKEY,                    XKB_KEY_Return,      zoom,             {0} },
 	{ MODKEY,                    XKB_KEY_Tab,         view,             {0} },
 	{ MODKEY|WLR_MODIFIER_SHIFT, XKB_KEY_c,           killclient,       {0} },
+	{ MODKEY|WLR_MODIFIER_SHIFT, XKB_KEY_z,           addscratchpad,    {0} },
+	{ MODKEY|WLR_MODIFIER_CTRL,  XKB_KEY_z,           togglescratchpad, {0} },
+	{ MODKEY,                    XKB_KEY_z,           removescratchpad, {0} },
 	{ MODKEY,                    XKB_KEY_t,           setlayout,        {.v = &layouts[0]} },
 	{ MODKEY,                    XKB_KEY_f,           setlayout,        {.v = &layouts[1]} },
 	{ MODKEY,                    XKB_KEY_m,           setlayout,        {.v = &layouts[2]} },
@@ -146,6 +150,9 @@ static const Key keys[] = {
 	{ MODKEY,                    XKB_KEY_period,      focusmon,         {.i = WLR_DIRECTION_RIGHT} },
 	{ MODKEY|WLR_MODIFIER_SHIFT, XKB_KEY_less,        tagmon,           {.i = WLR_DIRECTION_LEFT} },
 	{ MODKEY|WLR_MODIFIER_SHIFT, XKB_KEY_greater,     tagmon,           {.i = WLR_DIRECTION_RIGHT} },
+	{ MODKEY|WLR_MODIFIER_LOGO,  XKB_KEY_1,           setscratchpad,    {.i = 0} },
+	{ MODKEY|WLR_MODIFIER_LOGO,  XKB_KEY_2,           setscratchpad,    {.i = 1} },
+	{ MODKEY|WLR_MODIFIER_LOGO,  XKB_KEY_3,           setscratchpad,    {.i = 2} },
 	TAGKEYS(          XKB_KEY_1, XKB_KEY_exclam,                        0),
 	TAGKEYS(          XKB_KEY_2, XKB_KEY_at,                            1),
 	TAGKEYS(          XKB_KEY_3, XKB_KEY_numbersign,                    2),
diff --git a/dwl.c b/dwl.c
index 101a45f..9e01685 100644
--- a/dwl.c
+++ b/dwl.c
@@ -140,6 +140,7 @@ typedef struct {
 	uint32_t tags;
 	int isfloating, isurgent, isfullscreen;
 	uint32_t resize; /* configure serial of a pending resize */
+	struct wl_list link_temp;
 } Client;
 
 typedef struct {
@@ -241,6 +242,7 @@ typedef struct {
 } SessionLock;
 
 /* function declarations */
+static void addscratchpad(const Arg *arg);
 static void applybounds(Client *c, struct wlr_box *bbox);
 static void applyrules(Client *c);
 static void arrange(Monitor *m);
@@ -315,6 +317,7 @@ static void printstatus(void);
 static void powermgrsetmode(struct wl_listener *listener, void *data);
 static void quit(const Arg *arg);
 static void rendermon(struct wl_listener *listener, void *data);
+static void removescratchpad(const Arg *arg);
 static void requestdecorationmode(struct wl_listener *listener, void *data);
 static void requeststartdrag(struct wl_listener *listener, void *data);
 static void requestmonstate(struct wl_listener *listener, void *data);
@@ -328,6 +331,7 @@ static void setlayout(const Arg *arg);
 static void setmfact(const Arg *arg);
 static void setmon(Client *c, Monitor *m, uint32_t newtags);
 static void setpsel(struct wl_listener *listener, void *data);
+static void setscratchpad(const Arg *arg);
 static void setsel(struct wl_listener *listener, void *data);
 static void setup(void);
 static void spawn(const Arg *arg);
@@ -337,6 +341,7 @@ 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 togglescratchpad(const Arg *arg);
 static void toggletag(const Arg *arg);
 static void toggleview(const Arg *arg);
 static void unlocksession(struct wl_listener *listener, void *data);
@@ -456,6 +461,11 @@ static struct wlr_xwayland *xwayland;
 /* attempt to encapsulate suck into one file */
 #include "client.h"
 
+static struct wl_list scratchpad_clients[SCRATCHPAD_COUNT];
+static int scratchpad_visible[SCRATCHPAD_COUNT];
+static int scratchpad_sel = 0;
+#include "simple_scratchpad.c"
+
 /* function implementations */
 void
 applybounds(Client *c, struct wlr_box *bbox)
@@ -1329,10 +1339,21 @@ void
 destroynotify(struct wl_listener *listener, void *data)
 {
 	/* Called when the xdg_toplevel is destroyed. */
-	Client *c = wl_container_of(listener, c, destroy);
+	Client *sc, *c = wl_container_of(listener, c, destroy);
 	wl_list_remove(&c->destroy.link);
 	wl_list_remove(&c->set_title.link);
 	wl_list_remove(&c->fullscreen.link);
+	/* Check if destroyed client was part of any scratchpad slot
+	 * and clean it from the list if so. */
+	for (int i = 0; i < SCRATCHPAD_COUNT; i++) {
+		wl_list_for_each(sc, &scratchpad_clients[i], link_temp) {
+			if (sc == c) {
+				wl_list_remove(&c->link_temp);
+				goto scratchpad_destroy_done;
+			}
+		}
+	}
+scratchpad_destroy_done:;
 #ifdef XWAYLAND
 	if (c->type != XDGShell) {
 		wl_list_remove(&c->activate.link);
@@ -2334,11 +2355,24 @@ setcursorshape(struct wl_listener *listener, void *data)
 void
 setfloating(Client *c, int floating)
 {
-	Client *p = client_get_parent(c);
+	Client *sc, *p = client_get_parent(c);
 	c->isfloating = floating;
 	/* If in floating layout do not change the client's layer */
 	if (!c->mon || !client_surface(c)->mapped || !c->mon->lt[c->mon->sellt]->arrange)
 		return;
+	/* Check if unfloated client was part of any scratchpad slot
+	 * and remove it from that slot if so */
+	if (!floating) {
+		for (int i = 0; i < SCRATCHPAD_COUNT; i++) {
+			wl_list_for_each(sc, &scratchpad_clients[i], link_temp) {
+				if (sc == c) {
+					wl_list_remove(&c->link_temp);
+					goto scratchpad_float_done;
+				}
+			}
+		}
+scratchpad_float_done:;
+	}
 	wlr_scene_node_reparent(&c->scene->node, layers[c->isfullscreen ||
 			(p && p->isfullscreen) ? LyrFS
 			: c->isfloating ? LyrFloat : LyrTile]);
@@ -2556,6 +2590,11 @@ setup(void)
 	 */
 	wl_list_init(&clients);
 	wl_list_init(&fstack);
+	wl_list_init(&fstack);
+	for (int j = 0; j < SCRATCHPAD_COUNT; j++) {
+		wl_list_init(&scratchpad_clients[j]);
+		scratchpad_visible[j] = 1;
+	}
 
 	xdg_shell = wlr_xdg_shell_create(dpy, 6);
 	wl_signal_add(&xdg_shell->events.new_toplevel, &new_xdg_toplevel);
diff --git a/simple_scratchpad.c b/simple_scratchpad.c
new file mode 100644
index 0000000..cd62d83
--- /dev/null
+++ b/simple_scratchpad.c
@@ -0,0 +1,85 @@
+/* ************************************************************************** */
+/*                                                 @@@            @@@@@@@@    */
+/*                                                  @@@          @@@@@@@@@@   */
+/*                                                   @@!         @@!   @@@@   */
+/*                                                    !@!        !@!  @!@!@   */
+/*   simple_scratchpad.c                               @!!       @!@ @! !@!   */
+/*                                                      !!!      !@!!!  !!!   */
+/*   By: julmajustus <julmajustus@tutanota.com>          !!:     !!:!   !!!   */
+/*                                                        ::!    :!:    !:!   */
+/*   Created: 2024/12/19 19:35:02 by jmakkone           ::    ::::::: ::   */
+/*   Updated: 2026/05/20 23:58:16 by julmajustus            : :   : : :  :    */
+/*                                                                            */
+/* ************************************************************************** */
+
+void
+addscratchpad(const Arg *arg)
+{
+	Client *cc, *c = focustop(selmon);
+
+	if (!c)
+		return;
+	/* Check if the added client is already a scratchpad client */
+	for (int i = 0; i < SCRATCHPAD_COUNT; i++) {
+		wl_list_for_each(cc, &scratchpad_clients[i], link_temp) {
+			if (cc == c)
+				return;
+		}
+	}
+	if (!c->isfloating) {
+		setfloating(c, 1);
+	}
+	wl_list_insert(&scratchpad_clients[scratchpad_sel], &c->link_temp);
+}
+
+void
+togglescratchpad(const Arg *arg)
+{
+	Client *c;
+	Monitor *m = selmon;
+
+	scratchpad_visible[scratchpad_sel] = !scratchpad_visible[scratchpad_sel];
+	if (scratchpad_visible[scratchpad_sel]) {
+		wl_list_for_each(c, &scratchpad_clients[scratchpad_sel], link_temp) {
+			c->mon = m;
+			c->tags = m->tagset[m->seltags];
+			arrange(m);
+			focusclient(c, 1);
+		}
+	} else {
+		wl_list_for_each(c, &scratchpad_clients[scratchpad_sel], link_temp) {
+			c->tags = 0;
+			focusclient(focustop(m), 1);
+			arrange(m);
+		}
+	}
+}
+
+void
+removescratchpad(const Arg *arg)
+{
+	Client *sc, *c = focustop(selmon);
+	if (!c)
+		return;
+	for (int i = 0; i < SCRATCHPAD_COUNT; i++) {
+		/* Check if c is in scratchpad_clients */
+		wl_list_for_each(sc, &scratchpad_clients[i], link_temp) {
+			if (sc == c) {
+				wl_list_remove(&c->link_temp);
+				return;
+			}
+		}
+	}
+}
+
+void
+setscratchpad(const Arg *arg)
+{
+	int idx = arg->i;
+
+	if (idx < 0)
+		idx = 0;
+	else if (idx >= SCRATCHPAD_COUNT)
+		idx = SCRATCHPAD_COUNT - 1;
+	scratchpad_sel = idx;
+}