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From 620a68ffbcecf996916a8fd637f0bcff7a72e004 Mon Sep 17 00:00:00 2001
From: Ben Collerson <benc@benc.cc>
Date: Sat, 15 Jun 2024 12:34:01 +1000
Subject: [PATCH] input device rules
* customise input device handling
* ignore unwanted input devices
* configure a toggle for an input device
---
config.def.h | 13 ++++++++++
dwl.c | 68 ++++++++++++++++++++++++++++++++++++++++++++++++++--
2 files changed, 79 insertions(+), 2 deletions(-)
diff --git a/config.def.h b/config.def.h
index a784eb4f..88006d79 100644
--- a/config.def.h
+++ b/config.def.h
@@ -57,6 +57,18 @@ static const struct xkb_rule_names xkb_rules = {
.options = NULL,
};
+/* input devices */
+static const InputRule inputrules[] = {
+ /* name kbcreate ptrcreate */
+ /* ignore bad device - like a touchpad ;) */
+ { "BAD DEVICE", NULL, NULL },
+ /* ungroup ydotool device - fixes a bug */
+ { "ydotoold virtual device", createungroupedkeyboard, createpointer },
+ /* put your touchpad name here to enable toggle touchpad */
+ { "Elan Touchpad", createkeyboard, createtogglepointer },
+ { NULL, createkeyboard, createpointer },
+};
+
static const int repeat_rate = 25;
static const int repeat_delay = 600;
@@ -139,6 +151,7 @@ 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, XKB_KEY_u, togglepointer, {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 3dba2bf5..a11c7587 100644
--- a/dwl.c
+++ b/dwl.c
@@ -141,6 +141,12 @@ typedef struct {
uint32_t resize; /* configure serial of a pending resize */
} Client;
+typedef struct {
+ const char *name;
+ void (*kbcreate)(struct wlr_keyboard *);
+ void (*ptrcreate)(struct wlr_pointer *);
+} InputRule;
+
typedef struct {
uint32_t mod;
xkb_keysym_t keysym;
@@ -266,6 +272,8 @@ static void createmon(struct wl_listener *listener, void *data);
static void createnotify(struct wl_listener *listener, void *data);
static void createpointer(struct wlr_pointer *pointer);
static void createpointerconstraint(struct wl_listener *listener, void *data);
+static void createtogglepointer(struct wlr_pointer *pointer);
+static void createungroupedkeyboard(struct wlr_keyboard *keyboard);
static void cursorconstrain(struct wlr_pointer_constraint_v1 *constraint);
static void cursorframe(struct wl_listener *listener, void *data);
static void cursorwarptohint(void);
@@ -335,6 +343,7 @@ 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 togglepointer(const Arg *arg);
static void toggletag(const Arg *arg);
static void toggleview(const Arg *arg);
static void unlocksession(struct wl_listener *listener, void *data);
@@ -406,6 +415,8 @@ static struct wlr_box sgeom;
static struct wl_list mons;
static Monitor *selmon;
+static struct libinput_device *togglepointerdevice = NULL;
+
#ifdef XWAYLAND
static void activatex11(struct wl_listener *listener, void *data);
static void associatex11(struct wl_listener *listener, void *data);
@@ -1092,6 +1103,33 @@ createpointerconstraint(struct wl_listener *listener, void *data)
&pointer_constraint->destroy, destroypointerconstraint);
}
+void
+createtogglepointer(struct wlr_pointer *pointer)
+{
+ struct libinput_device *device;
+
+ createpointer(pointer);
+
+ if (wlr_input_device_is_libinput(&pointer->base)
+ && (device = wlr_libinput_get_device_handle(&pointer->base))) {
+ togglepointerdevice = device;
+ }
+}
+
+void
+createungroupedkeyboard(struct wlr_keyboard *keyboard)
+{
+ /* for keyboards that need their own keyboard group */
+ KeyboardGroup *group = createkeyboardgroup();
+
+ /* Set the keymap to match the group keymap */
+ wlr_keyboard_set_keymap(keyboard, group->wlr_group->keyboard.keymap);
+ LISTEN(&keyboard->base.events.destroy, &group->destroy, destroykeyboardgroup);
+
+ /* Add the new keyboard to the group */
+ wlr_keyboard_group_add_keyboard(group->wlr_group, keyboard);
+}
+
void
cursorconstrain(struct wlr_pointer_constraint_v1 *constraint)
{
@@ -1467,13 +1505,27 @@ inputdevice(struct wl_listener *listener, void *data)
* available. */
struct wlr_input_device *device = data;
uint32_t caps;
+ const InputRule *r;
switch (device->type) {
case WLR_INPUT_DEVICE_KEYBOARD:
- createkeyboard(wlr_keyboard_from_input_device(device));
+ for (r = inputrules; r < END(inputrules); r++) {
+ if (!r->name || strstr(device->name, r->name)) {
+ if (r->kbcreate)
+ r->kbcreate(wlr_keyboard_from_input_device(device));
+ break;
+ }
+ }
+
break;
case WLR_INPUT_DEVICE_POINTER:
- createpointer(wlr_pointer_from_input_device(device));
+ for (r = inputrules; r < END(inputrules); r++) {
+ if (!r->name || strstr(device->name, r->name)) {
+ if (r->ptrcreate)
+ r->ptrcreate(wlr_pointer_from_input_device(device));
+ break;
+ }
+ }
break;
default:
/* TODO handle other input device types */
@@ -2647,6 +2699,18 @@ togglefullscreen(const Arg *arg)
setfullscreen(sel, !sel->isfullscreen);
}
+void
+togglepointer(const Arg *arg)
+{
+ if (!togglepointerdevice)
+ return;
+
+ libinput_device_config_send_events_set_mode(
+ togglepointerdevice,
+ libinput_device_config_send_events_get_mode(togglepointerdevice) ^ LIBINPUT_CONFIG_SEND_EVENTS_DISABLED
+ );
+}
+
void
toggletag(const Arg *arg)
{
--
2.45.2
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