From 3c78308f0d74ac6ef112804333f82c098e33bb40 Mon Sep 17 00:00:00 2001
From: Nikita Ivanov <nikita.vyach.ivanov@gmail.com>
Date: Fri, 21 Mar 2025 22:20:54 +0100
Subject: [PATCH] setrule: add/change rules at runtime
---
config.def.h | 4 ++++
dwl.c | 67 +++++++++++++++++++++++++++++++++++++++++++++++++++-
2 files changed, 70 insertions(+), 1 deletion(-)
diff --git a/config.def.h b/config.def.h
index 22d2171..5b05e52 100644
--- a/config.def.h
+++ b/config.def.h
@@ -20,6 +20,9 @@ static const float fullscreen_bg[] = {0.1f, 0.1f, 0.1f, 1.0f}; /* You ca
/* logging */
static int log_level = WLR_ERROR;
+/* Max amount of dynamically added rules */
+#define RULES_MAX 100
+
/* 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 */
@@ -142,6 +145,7 @@ static const Key keys[] = {
{ MODKEY, XKB_KEY_space, setlayout, {0} },
{ MODKEY|WLR_MODIFIER_SHIFT, XKB_KEY_space, togglefloating, {0} },
{ MODKEY, XKB_KEY_e, togglefullscreen, {0} },
+ { MODKEY|WLR_MODIFIER_SHIFT, XKB_KEY_R, setruleisfloating,{0} },
{ MODKEY, XKB_KEY_0, view, {.ui = ~0} },
{ MODKEY|WLR_MODIFIER_SHIFT, XKB_KEY_parenright, tag, {.ui = ~0} },
{ MODKEY, XKB_KEY_comma, focusmon, {.i = WLR_DIRECTION_LEFT} },
diff --git a/dwl.c b/dwl.c
index def2562..8beac1f 100644
--- a/dwl.c
+++ b/dwl.c
@@ -290,6 +290,7 @@ static void focusmon(const Arg *arg);
static void focusstack(const Arg *arg);
static Client *focustop(Monitor *m);
static void fullscreennotify(struct wl_listener *listener, void *data);
+static Rule *getrule(Client *c);
static void gpureset(struct wl_listener *listener, void *data);
static void handlesig(int signo);
static void incnmaster(const Arg *arg);
@@ -331,6 +332,7 @@ 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 setruleisfloating(const Arg *arg);
static void setsel(struct wl_listener *listener, void *data);
static void setup(void);
static void spawn(const Arg *arg);
@@ -413,6 +415,9 @@ static struct wlr_box sgeom;
static struct wl_list mons;
static Monitor *selmon;
+static Rule *drules;
+static size_t druleslen;
+
#ifdef XWAYLAND
static void activatex11(struct wl_listener *listener, void *data);
static void associatex11(struct wl_listener *listener, void *data);
@@ -466,7 +471,7 @@ applyrules(Client *c)
if (!(title = client_get_title(c)))
title = broken;
- for (r = rules; r < END(rules); r++) {
+ for (r = drules; r < drules + druleslen; r++) {
if ((!r->title || strstr(title, r->title))
&& (!r->id || strstr(appid, r->id))) {
c->isfloating = r->isfloating;
@@ -1472,6 +1477,53 @@ fullscreennotify(struct wl_listener *listener, void *data)
setfullscreen(c, client_wants_fullscreen(c));
}
+Rule *
+getrule(Client *c)
+{
+ Rule *r;
+ const Rule *e;
+ const char *appid, *title;
+
+ if (!c)
+ return NULL;
+
+ if (!(appid = client_get_appid(c)))
+ appid = broken;
+ if (!(title = client_get_title(c)))
+ title = broken;
+
+ for (r = drules + druleslen - 1; r >= drules; r--)
+ if ((!r->title || strstr(title, r->title))
+ && (!r->id || strstr(appid, r->id)))
+ goto found;
+
+ if (druleslen >= LENGTH(rules) + RULES_MAX)
+ return NULL; /* No free slots left */
+
+ r = drules + druleslen++;
+
+ /* Use [NULL,NULL] as the default rule if exists */
+ for (e = rules; e < END(rules); e++)
+ if (!e->title && !e->id) {
+ *r = *e;
+ break;
+ }
+
+ /* No default rule found, set reasoble defaults */
+ if (e >= END(rules)) {
+ r->monitor = -1;
+ }
+
+ /* Only set title if appid is unset */
+ if (appid == broken)
+ r->title = strdup(title);
+ else
+ r->id = strdup(appid);
+
+found:
+ return r;
+}
+
void
gpureset(struct wl_listener *listener, void *data)
{
@@ -2417,6 +2469,15 @@ setpsel(struct wl_listener *listener, void *data)
wlr_seat_set_primary_selection(seat, event->source, event->serial);
}
+void
+setruleisfloating(const Arg *arg)
+{
+ Rule *r = getrule(focustop(selmon));
+ if (!r)
+ return;
+ r->isfloating = !r->isfloating;
+}
+
void
setsel(struct wl_listener *listener, void *data)
{
@@ -2645,6 +2706,10 @@ setup(void)
fprintf(stderr, "failed to setup XWayland X server, continuing without it\n");
}
#endif
+
+ drules = ecalloc(LENGTH(rules) + RULES_MAX, sizeof(Rule));
+ memcpy(drules, rules, sizeof(rules));
+ druleslen = LENGTH(rules);
}
void
--
2.49.0