From 42c0bff29b652c3dc8e92dbb41324e19050b86d1 Mon Sep 17 00:00:00 2001
From: Peter Hutterer <peter.hutterer@who-t.net>
Date: Tue, 3 Jun 2025 14:07:40 +1000
Subject: [PATCH] plugin: add internal api to notify plugins of tool
 configuration

Part-of: <https://gitlab.freedesktop.org/libinput/libinput/-/merge_requests/1218>
---
 src/evdev-tablet.c           |  4 ++++
 src/libinput-plugin-system.h |  4 ++++
 src/libinput-plugin.c        | 12 ++++++++++++
 src/libinput-plugin.h        |  8 ++++++++
 4 files changed, 28 insertions(+)

diff --git a/src/evdev-tablet.c b/src/evdev-tablet.c
index b3049f1e..f66003d4 100644
--- a/src/evdev-tablet.c
+++ b/src/evdev-tablet.c
@@ -1193,6 +1193,10 @@ apply_pressure_range_configuration(struct tablet_dispatch *tablet,
 
 	tool->pressure.range.min = tool->pressure.wanted_range.min;
 	tool->pressure.range.max = tool->pressure.wanted_range.max;
+
+	struct libinput *libinput = tablet_libinput_context(tablet);
+	libinput_plugin_system_notify_tablet_tool_configured(&libinput->plugin_system,
+							     tool);
 }
 
 static inline void
diff --git a/src/libinput-plugin-system.h b/src/libinput-plugin-system.h
index 5927240e..13e22fc2 100644
--- a/src/libinput-plugin-system.h
+++ b/src/libinput-plugin-system.h
@@ -82,6 +82,10 @@ void
 libinput_plugin_system_notify_device_ignored(struct libinput_plugin_system *system,
 					     struct libinput_device *device);
 
+void
+libinput_plugin_system_notify_tablet_tool_configured(struct libinput_plugin_system *system,
+						     struct libinput_tablet_tool *tool);
+
 void
 libinput_plugin_system_notify_evdev_frame(struct libinput_plugin_system *system,
 					  struct libinput_device *device,
diff --git a/src/libinput-plugin.c b/src/libinput-plugin.c
index 709a35e1..0001b067 100644
--- a/src/libinput-plugin.c
+++ b/src/libinput-plugin.c
@@ -433,6 +433,18 @@ libinput_plugin_system_notify_device_ignored(struct libinput_plugin_system *syst
 	libinput_plugin_system_drop_unregistered_plugins(system);
 }
 
+void
+libinput_plugin_system_notify_tablet_tool_configured(struct libinput_plugin_system *system,
+						     struct libinput_tablet_tool *tool)
+{
+	struct libinput_plugin *plugin;
+	list_for_each_safe(plugin, &system->plugins, link) {
+		if (plugin->interface->tool_configured)
+			plugin->interface->tool_configured(plugin, tool);
+	}
+	libinput_plugin_system_drop_unregistered_plugins(system);
+}
+
 static void
 libinput_plugin_process_frame(struct libinput_plugin *plugin,
 			      struct libinput_device *device,
diff --git a/src/libinput-plugin.h b/src/libinput-plugin.h
index fc2defb2..c2af29ae 100644
--- a/src/libinput-plugin.h
+++ b/src/libinput-plugin.h
@@ -35,6 +35,7 @@
 struct evdev_frame;
 struct libinput;
 struct libinput_device;
+struct libinput_tablet_tool;
 struct libinput_plugin;
 enum libinput_log_priority;
 
@@ -98,6 +99,13 @@ struct libinput_plugin_interface {
 	void (*evdev_frame)(struct libinput_plugin *plugin,
 			    struct libinput_device *device,
 			    struct evdev_frame *frame);
+
+	/**
+	 * Notification that a configuration option on a tool
+	 * was modified.
+	 */
+	void (*tool_configured)(struct libinput_plugin *plugin,
+				struct libinput_tablet_tool *tool);
 };
 
 /**