From f754a57438a46dafcc0ad6c13ad1d66dc05a21b4 Mon Sep 17 00:00:00 2001
From: Joe <rbo@gmx.us>
Date: Fri, 28 Feb 2025 20:59:22 +0100
Subject: swallowd
---
patches/applied/swallow.patch | 240 ++++++++++++++++++++++++++++++++++++++++++
1 file changed, 240 insertions(+)
create mode 100644 patches/applied/swallow.patch
(limited to 'patches/applied')
diff --git a/patches/applied/swallow.patch b/patches/applied/swallow.patch
new file mode 100644
index 0000000..b4581c4
--- /dev/null
+++ b/patches/applied/swallow.patch
@@ -0,0 +1,240 @@
+From 4b80c425c9f414bc079a0e61f5a3ef42eea85476 Mon Sep 17 00:00:00 2001
+From: choc <notchoc@proton.me>
+Date: Fri, 15 Sep 2023 10:36:21 +0800
+Subject: [PATCH] implement swallow
+
+---
+ client.h | 12 ++++++
+ config.def.h | 7 ++--
+ dwl.c | 112 ++++++++++++++++++++++++++++++++++++++++++++++++---
+ 3 files changed, 123 insertions(+), 8 deletions(-)
+
+diff --git a/client.h b/client.h
+index 42f225f..bc9cad2 100644
+--- a/client.h
++++ b/client.h
+@@ -131,6 +131,18 @@ client_get_appid(Client *c)
+ return c->surface.xdg->toplevel->app_id;
+ }
+
++static inline int
++client_get_pid(Client *c)
++{
++ pid_t pid;
++#ifdef XWAYLAND
++ if (client_is_x11(c))
++ return c->surface.xwayland->pid;
++#endif
++ wl_client_get_credentials(c->surface.xdg->client->client, &pid, NULL, NULL);
++ return pid;
++}
++
+ static inline void
+ client_get_clip(Client *c, struct wlr_box *clip)
+ {
+diff --git a/config.def.h b/config.def.h
+index 22d2171..7e5fef1 100644
+--- a/config.def.h
++++ b/config.def.h
+@@ -22,10 +22,11 @@ static int log_level = WLR_ERROR;
+
+ /* NOTE: ALWAYS keep a rule declared even if you don't use rules (e.g leave at least one example) */
+ static const Rule rules[] = {
+- /* app_id title tags mask isfloating monitor */
++ /* app_id title tags mask isfloating isterm noswallow monitor */
+ /* examples: */
+- { "Gimp_EXAMPLE", NULL, 0, 1, -1 }, /* Start on currently visible tags floating, not tiled */
+- { "firefox_EXAMPLE", NULL, 1 << 8, 0, -1 }, /* Start on ONLY tag "9" */
++ { "Gimp_EXAMPLE", NULL, 0, 1, 0, 0, -1 }, /* Start on currently visible tags floating, not tiled */
++ { "firefox_EXAMPLE", NULL, 1 << 8, 0, 0, 0, -1 }, /* Start on ONLY tag "9" */
++ { "foot", NULL, 0, 0, 1, 1, -1 }, /* make foot swallow clients that are not foot */
+ };
+
+ /* layout(s) */
+diff --git a/dwl.c b/dwl.c
+index dc0437e..c6a5e9d 100644
+--- a/dwl.c
++++ b/dwl.c
+@@ -103,7 +103,8 @@ 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 */
+@@ -138,9 +139,11 @@ typedef struct {
+ #endif
+ unsigned int bw;
+ uint32_t 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;
++};
+
+ typedef struct {
+ uint32_t mod;
+@@ -229,6 +232,8 @@ typedef struct {
+ const char *title;
+ uint32_t tags;
+ int isfloating;
++ int isterm;
++ int noswallow;
+ int monitor;
+ } Rule;
+
+@@ -351,6 +356,10 @@ static Monitor *xytomon(double x, double y);
+ static void 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";
+@@ -461,10 +470,14 @@ applyrules(Client *c)
+ if (!(title = client_get_title(c)))
+ title = broken;
+
++ c->pid = client_get_pid(c);
++
+ for (r = rules; r < END(rules); r++) {
+ if ((!r->title || strstr(title, r->title))
+ && (!r->id || strstr(appid, r->id))) {
+ c->isfloating = r->isfloating;
++ c->isterm = r->isterm;
++ c->noswallow = r->noswallow;
+ newtags |= r->tags;
+ i = 0;
+ wl_list_for_each(m, &mons, link) {
+@@ -473,6 +486,21 @@ applyrules(Client *c)
+ }
+ }
+ }
++ if (!c->noswallow && !client_is_float_type(c)
++ && !c->surface.xdg->initial_commit) {
++ 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);
++ mon = p->mon;
++ newtags = p->tags;
++ }
++ }
+ setmon(c, mon, newtags);
+ }
+
+@@ -1467,6 +1495,63 @@ handlesig(int signo)
+ }
+ }
+
++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, &fstack, flink)
++ 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;
++ c->tags = w->tags;
++ c->geom = w->geom;
++ wl_list_insert(&w->link, &c->link);
++ wl_list_insert(&w->flink, &c->flink);
++ wlr_scene_node_set_enabled(&w->scene->node, 0);
++ wlr_scene_node_set_enabled(&c->scene->node, 1);
++}
++
+ void
+ incnmaster(const Arg *arg)
+ {
+@@ -2746,15 +2831,32 @@ unmapnotify(struct wl_listener *listener, void *data)
+ grabc = NULL;
+ }
+
++ if (c->swallowedby)
++ swallow(c->swallowedby, c);
++
+ if (client_is_unmanaged(c)) {
+ if (c == exclusive_focus) {
+ exclusive_focus = NULL;
+ focusclient(focustop(selmon), 1);
+ }
+ } else {
+- wl_list_remove(&c->link);
++ if (!c->swallowing)
++ wl_list_remove(&c->link);
+ setmon(c, NULL, 0);
+- wl_list_remove(&c->flink);
++ if (!c->swallowing)
++ wl_list_remove(&c->flink);
++ }
++
++ if (c->swallowedby) {
++ c->swallowedby->prev = c->geom;
++ setfullscreen(c->swallowedby, c->isfullscreen);
++ c->swallowedby->swallowing = NULL;
++ c->swallowedby = NULL;
++ }
++
++ if (c->swallowing) {
++ c->swallowing->swallowedby = NULL;
++ c->swallowing = NULL;
+ }
+
+ wlr_scene_node_destroy(&c->scene->node);
+--
+2.43.0
+
--
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