From cd67c8386b0188daa15348c1d0d99187a556e461 Mon Sep 17 00:00:00 2001
From: choc <notchoc@proton.me>
Date: Mon, 2 Jan 2023 13:00:29 +0800
Subject: [PATCH] passthrough: allow pausing keybind handling

also allows for bitcarrying-esque control of nested instances
---
 config.def.h |  4 ++++
 dwl.c        | 14 ++++++++++++++
 2 files changed, 18 insertions(+)

diff --git a/config.def.h b/config.def.h
index 646a3d6..2d14e2a 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;
 
+/* passthrough */
+static int passthrough = 0;
+
 static const Rule rules[] = {
 	/* app_id             title       tags mask     isfloating   monitor */
 	/* examples: */
@@ -156,6 +159,7 @@ static const Key keys[] = {
 	TAGKEYS(          XKB_KEY_7, XKB_KEY_ampersand,                  6),
 	TAGKEYS(          XKB_KEY_8, XKB_KEY_asterisk,                   7),
 	TAGKEYS(          XKB_KEY_9, XKB_KEY_parenleft,                  8),
+	{ WLR_MODIFIER_ALT|WLR_MODIFIER_LOGO|WLR_MODIFIER_CTRL|WLR_MODIFIER_SHIFT, XKB_KEY_Escape, togglepassthrough, {0} },
 	{ MODKEY|WLR_MODIFIER_SHIFT, XKB_KEY_Q,          quit,           {0} },
 
 	/* Ctrl-Alt-Backspace and Ctrl-Alt-Fx used to be handled by X server */
diff --git a/dwl.c b/dwl.c
index 9fb50a7..a1c65b4 100644
--- a/dwl.c
+++ b/dwl.c
@@ -339,6 +339,7 @@ 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 togglepassthrough(const Arg *arg);
 static void toggletag(const Arg *arg);
 static void toggleview(const Arg *arg);
 static void unlocksession(struct wl_listener *listener, void *data);
@@ -620,6 +621,11 @@ buttonpress(struct wl_listener *listener, void *data)
 		for (b = buttons; b < END(buttons); b++) {
 			if (CLEANMASK(mods) == CLEANMASK(b->mod) &&
 					event->button == b->button && b->func) {
+				if (passthrough) {
+					if (b->func != togglepassthrough) continue;
+					b->func(&b->arg);
+					break;
+				}
 				b->func(&b->arg);
 				return;
 			}
@@ -1509,6 +1515,8 @@ keybinding(uint32_t mods, xkb_keysym_t sym)
 	for (k = keys; k < END(keys); k++) {
 		if (CLEANMASK(mods) == CLEANMASK(k->mod)
 				&& sym == k->keysym && k->func) {
+			if (passthrough && k->func != togglepassthrough)
+				continue;
 			k->func(&k->arg);
 			return 1;
 		}
@@ -2677,6 +2685,12 @@ togglefullscreen(const Arg *arg)
 		setfullscreen(sel, !sel->isfullscreen);
 }
 
+void
+togglepassthrough(const Arg *arg)
+{
+	passthrough = !passthrough;
+}
+
 void
 toggletag(const Arg *arg)
 {
-- 
2.43.0

