From 6d05bed883878234124238bc56168a2aab1251f2 Mon Sep 17 00:00:00 2001
From: Jens Peters <jp7677@gmail.com>
Date: Mon, 22 Apr 2024 17:21:55 +0200
Subject: [PATCH] config: add option for forcing mouse emulation

Default is off. Also allow switching with reconfigure.
---
 include/config/rcxml.h | 1 +
 src/config/rcxml.c     | 3 +++
 src/input/tablet.c     | 6 ++++--
 3 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/include/config/rcxml.h b/include/config/rcxml.h
index 41c34c95..1ebfddee 100644
--- a/include/config/rcxml.h
+++ b/include/config/rcxml.h
@@ -94,6 +94,7 @@ struct rcxml {
 
 	/* graphics tablet */
 	struct tablet_config {
+		bool force_mouse_emulation;
 		char *output_name;
 		struct wlr_fbox box;
 		enum rotation rotation;
diff --git a/src/config/rcxml.c b/src/config/rcxml.c
index 67cbd421..741938a9 100644
--- a/src/config/rcxml.c
+++ b/src/config/rcxml.c
@@ -1020,6 +1020,8 @@ entry(xmlNode *node, char *nodename, char *content)
 		} else {
 			wlr_log(WLR_ERROR, "Invalid value for <resize popupShow />");
 		}
+	} else if (!strcasecmp(nodename, "mouseEmulation.tablet")) {
+		set_bool(content, &rc.tablet.force_mouse_emulation);
 	} else if (!strcasecmp(nodename, "mapToOutput.tablet")) {
 		rc.tablet.output_name = xstrdup(content);
 	} else if (!strcasecmp(nodename, "rotate.tablet")) {
@@ -1229,6 +1231,7 @@ rcxml_init(void)
 	rc.doubleclick_time = 500;
 	rc.scroll_factor = 1.0;
 
+	rc.tablet.force_mouse_emulation = false;
 	rc.tablet.output_name = NULL;
 	rc.tablet.rotation = 0;
 	rc.tablet.box = (struct wlr_fbox){0};
diff --git a/src/input/tablet.c b/src/input/tablet.c
index 92a17914..4e856a7b 100644
--- a/src/input/tablet.c
+++ b/src/input/tablet.c
@@ -91,7 +91,8 @@ tablet_get_coords(struct drawing_tablet *tablet, double *x, double *y)
 		rc.tablet.box, x, y);
 	adjust_for_rotation(rc.tablet.rotation, x, y);
 
-	if (!tablet->tablet_v2) {
+	if (rc.tablet.force_mouse_emulation
+			|| !tablet->tablet_v2) {
 		return NULL;
 	}
 
@@ -154,7 +155,8 @@ handle_proximity(struct wl_listener *listener, void *data)
 	double x, y;
 	struct wlr_surface *surface = tablet_get_coords(tablet, &x, &y);
 
-	if (tablet->seat->server->tablet_manager && !tool) {
+	if (!rc.tablet.force_mouse_emulation
+			&& tablet->seat->server->tablet_manager && !tool) {
 		/*
 		 * Unfortunately `wlr_tool` is only present in the events, so
 		 * use proximity for creating a `wlr_tablet_v2_tablet_tool`.