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-rw-r--r--dwl-patches/patches/tablet-input/tablet-input.patch372
1 files changed, 372 insertions, 0 deletions
diff --git a/dwl-patches/patches/tablet-input/tablet-input.patch b/dwl-patches/patches/tablet-input/tablet-input.patch
new file mode 100644
index 0000000..e7d1211
--- /dev/null
+++ b/dwl-patches/patches/tablet-input/tablet-input.patch
@@ -0,0 +1,372 @@
+From 0659663b7eb9cafbd4f86779084765aa838e29cd Mon Sep 17 00:00:00 2001
+From: A Frederick Christensen <dwl@ivories.org>
+Date: Sat, 17 May 2025 23:26:15 -0500
+Subject: [PATCH] Add tablet input
+
+---
+ Makefile | 6 +-
+ config.def.h | 1 +
+ dwl.c | 231 +++++++++++++++++++++++++++++++++++++++++++++++++++
+ 3 files changed, 237 insertions(+), 1 deletion(-)
+
+diff --git a/Makefile b/Makefile
+index 578194f..e0d1835 100644
+--- a/Makefile
++++ b/Makefile
+@@ -21,7 +21,8 @@ dwl: dwl.o util.o
+ $(CC) dwl.o util.o $(DWLCFLAGS) $(LDFLAGS) $(LDLIBS) -o $@
+ dwl.o: dwl.c client.h config.h config.mk cursor-shape-v1-protocol.h \
+ pointer-constraints-unstable-v1-protocol.h wlr-layer-shell-unstable-v1-protocol.h \
+- wlr-output-power-management-unstable-v1-protocol.h xdg-shell-protocol.h
++ wlr-output-power-management-unstable-v1-protocol.h xdg-shell-protocol.h \
++ tablet-v2-protocol.h
+ util.o: util.c util.h
+
+ # wayland-scanner is a tool which generates C headers and rigging for Wayland
+@@ -45,6 +46,9 @@ wlr-output-power-management-unstable-v1-protocol.h:
+ xdg-shell-protocol.h:
+ $(WAYLAND_SCANNER) server-header \
+ $(WAYLAND_PROTOCOLS)/stable/xdg-shell/xdg-shell.xml $@
++tablet-v2-protocol.h:
++ $(WAYLAND_SCANNER) server-header \
++ $(WAYLAND_PROTOCOLS)/unstable/tablet/tablet-unstable-v2.xml $@
+
+ config.h:
+ cp config.def.h $@
+diff --git a/config.def.h b/config.def.h
+index 22d2171..3ad98ef 100644
+--- a/config.def.h
++++ b/config.def.h
+@@ -4,6 +4,7 @@
+ ((hex >> 8) & 0xFF) / 255.0f, \
+ (hex & 0xFF) / 255.0f }
+ /* appearance */
++static const int tabletmaptosurface = 0; /* map tablet input to surface(1) or monitor(0) */
+ static const int sloppyfocus = 1; /* focus follows mouse */
+ static const int bypass_surface_visibility = 0; /* 1 means idle inhibitors will disable idle tracking even if it's surface isn't visible */
+ static const unsigned int borderpx = 1; /* border pixel of windows */
+diff --git a/dwl.c b/dwl.c
+index 4816159..e8d36ac 100644
+--- a/dwl.c
++++ b/dwl.c
+@@ -51,6 +51,9 @@
+ #include <wlr/types/wlr_session_lock_v1.h>
+ #include <wlr/types/wlr_single_pixel_buffer_v1.h>
+ #include <wlr/types/wlr_subcompositor.h>
++#include <wlr/types/wlr_tablet_tool.h>
++#include <wlr/types/wlr_tablet_pad.h>
++#include <wlr/types/wlr_tablet_v2.h>
+ #include <wlr/types/wlr_viewporter.h>
+ #include <wlr/types/wlr_virtual_keyboard_v1.h>
+ #include <wlr/types/wlr_virtual_pointer_v1.h>
+@@ -268,6 +271,7 @@ 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 createpopup(struct wl_listener *listener, void *data);
++static void createtablet(struct wlr_input_device *device);
+ static void cursorconstrain(struct wlr_pointer_constraint_v1 *constraint);
+ static void cursorframe(struct wl_listener *listener, void *data);
+ static void cursorwarptohint(void);
+@@ -281,6 +285,9 @@ static void destroynotify(struct wl_listener *listener, void *data);
+ static void destroypointerconstraint(struct wl_listener *listener, void *data);
+ static void destroysessionlock(struct wl_listener *listener, void *data);
+ static void destroykeyboardgroup(struct wl_listener *listener, void *data);
++static void destroytablet(struct wl_listener *listener, void *data);
++static void destroytabletsurfacenotify(struct wl_listener *listener, void *data);
++static void destroytablettool(struct wl_listener *listener, void *data);
+ static Monitor *dirtomon(enum wlr_direction dir);
+ static void focusclient(Client *c, int lift);
+ static void focusmon(const Arg *arg);
+@@ -333,6 +340,11 @@ static void spawn(const Arg *arg);
+ static void startdrag(struct wl_listener *listener, void *data);
+ static void tag(const Arg *arg);
+ static void tagmon(const Arg *arg);
++static void tablettoolmotion(struct wlr_tablet_v2_tablet_tool *tool, bool change_x, bool change_y, double x, double y, double dx, double dy);
++static void tablettoolproximity(struct wl_listener *listener, void *data);
++static void tablettoolaxis(struct wl_listener *listener, void *data);
++static void tablettoolbutton(struct wl_listener *listener, void *data);
++static void tablettooltip(struct wl_listener *listener, void *data);
+ static void tile(Monitor *m);
+ static void togglefloating(const Arg *arg);
+ static void togglefullscreen(const Arg *arg);
+@@ -390,6 +402,13 @@ static struct wlr_pointer_constraint_v1 *active_constraint;
+ static struct wlr_cursor *cursor;
+ static struct wlr_xcursor_manager *cursor_mgr;
+
++static struct wlr_tablet_manager_v2 *tablet_mgr;
++static struct wlr_tablet_v2_tablet *tablet = NULL;
++static struct wlr_tablet_v2_tablet_tool *tablet_tool = NULL;
++static struct wlr_tablet_v2_tablet_pad *tablet_pad = NULL;
++static struct wlr_surface *tablet_curr_surface = NULL;
++static struct wl_listener destroy_tablet_surface_listener = {.notify = destroytabletsurfacenotify};
++
+ static struct wlr_scene_rect *root_bg;
+ static struct wlr_session_lock_manager_v1 *session_lock_mgr;
+ static struct wlr_scene_rect *locked_bg;
+@@ -412,6 +431,12 @@ static struct wl_listener cursor_button = {.notify = buttonpress};
+ static struct wl_listener cursor_frame = {.notify = cursorframe};
+ static struct wl_listener cursor_motion = {.notify = motionrelative};
+ static struct wl_listener cursor_motion_absolute = {.notify = motionabsolute};
++static struct wl_listener tablet_device_destroy = {.notify = destroytablet};
++static struct wl_listener tablet_tool_axis = {.notify = tablettoolaxis};
++static struct wl_listener tablet_tool_button = {.notify = tablettoolbutton};
++static struct wl_listener tablet_tool_destroy = {.notify = destroytablettool};
++static struct wl_listener tablet_tool_proximity = {.notify = tablettoolproximity};
++static struct wl_listener tablet_tool_tip = {.notify = tablettooltip};
+ static struct wl_listener gpu_reset = {.notify = gpureset};
+ static struct wl_listener layout_change = {.notify = updatemons};
+ static struct wl_listener new_idle_inhibitor = {.notify = createidleinhibitor};
+@@ -1196,6 +1221,28 @@ createpopup(struct wl_listener *listener, void *data)
+ LISTEN_STATIC(&popup->base->surface->events.commit, commitpopup);
+ }
+
++void
++createtablet(struct wlr_input_device *device)
++{
++ if (!tablet) {
++ struct libinput_device *device_handle = NULL;
++ if (!wlr_input_device_is_libinput(device) ||
++ !(device_handle = wlr_libinput_get_device_handle(device)))
++ return;
++
++ tablet = wlr_tablet_create(tablet_mgr, seat, device);
++ wl_signal_add(&tablet->wlr_device->events.destroy, &tablet_device_destroy);
++ if (libinput_device_config_send_events_get_modes(device_handle)) {
++ libinput_device_config_send_events_set_mode(device_handle, send_events_mode);
++ wlr_cursor_attach_input_device(cursor, device);
++ }
++ } else if (device == tablet->wlr_device) {
++ wlr_log(WLR_ERROR, "createtablet: duplicate device");
++ } else {
++ wlr_log(WLR_ERROR, "createtablet: already have one tablet");
++ }
++}
++
+ void
+ cursorconstrain(struct wlr_pointer_constraint_v1 *constraint)
+ {
+@@ -1380,6 +1427,27 @@ destroykeyboardgroup(struct wl_listener *listener, void *data)
+ free(group);
+ }
+
++void
++destroytablet(struct wl_listener *listener, void *data)
++{
++ tablet = NULL;
++}
++
++void
++destroytabletsurfacenotify(struct wl_listener *listener, void *data)
++{
++ if (tablet_curr_surface)
++ wl_list_remove(&destroy_tablet_surface_listener.link);
++ tablet_curr_surface = NULL;
++}
++
++void
++destroytablettool(struct wl_listener *listener, void *data)
++{
++ destroytabletsurfacenotify(NULL, NULL);
++ tablet_tool = NULL;
++}
++
+ Monitor *
+ dirtomon(enum wlr_direction dir)
+ {
+@@ -1587,6 +1655,12 @@ inputdevice(struct wl_listener *listener, void *data)
+ case WLR_INPUT_DEVICE_POINTER:
+ createpointer(wlr_pointer_from_input_device(device));
+ break;
++ case WLR_INPUT_DEVICE_TABLET:
++ createtablet(device);
++ break;
++ case WLR_INPUT_DEVICE_TABLET_PAD:
++ tablet_pad = wlr_tablet_pad_create(tablet_mgr, seat, device);
++ break;
+ default:
+ /* TODO handle other input device types */
+ break;
+@@ -2580,6 +2654,8 @@ setup(void)
+
+ relative_pointer_mgr = wlr_relative_pointer_manager_v1_create(dpy);
+
++ tablet_mgr = wlr_tablet_v2_create(dpy);
++
+ /*
+ * Creates a cursor, which is a wlroots utility for tracking the cursor
+ * image shown on screen.
+@@ -2609,6 +2685,11 @@ setup(void)
+ wl_signal_add(&cursor->events.button, &cursor_button);
+ wl_signal_add(&cursor->events.axis, &cursor_axis);
+ wl_signal_add(&cursor->events.frame, &cursor_frame);
++ wl_signal_add(&cursor->events.tablet_tool_proximity, &tablet_tool_proximity);
++ wl_signal_add(&cursor->events.tablet_tool_axis, &tablet_tool_axis);
++ wl_signal_add(&cursor->events.tablet_tool_button, &tablet_tool_button);
++ wl_signal_add(&cursor->events.tablet_tool_tip, &tablet_tool_tip);
++
+
+ cursor_shape_mgr = wlr_cursor_shape_manager_v1_create(dpy, 1);
+ wl_signal_add(&cursor_shape_mgr->events.request_set_shape, &request_set_cursor_shape);
+@@ -2704,6 +2785,159 @@ tagmon(const Arg *arg)
+ setmon(sel, dirtomon(arg->i), 0);
+ }
+
++void
++tabletapplymap(double x, double y, struct wlr_input_device *dev)
++{
++ Client *p;
++ struct wlr_box geom = {0};
++ if (tabletmaptosurface && tablet_curr_surface) {
++ toplevel_from_wlr_surface(tablet_curr_surface, &p, NULL);
++ if (p) {
++ for (; client_get_parent(p); p = client_get_parent(p));
++ geom.x = p->geom.x + p->bw;
++ geom.y = p->geom.y + p->bw;
++ geom.width = p->geom.width - 2 * p->bw;
++ geom.height = p->geom.height - 2 * p->bw;
++ }
++ }
++ wlr_cursor_map_input_to_region(cursor, dev, &geom);
++ wlr_cursor_map_input_to_output(cursor, dev, selmon->wlr_output);
++}
++
++void
++tablettoolmotion(struct wlr_tablet_v2_tablet_tool *tool, bool change_x, bool change_y,
++ double x, double y, double dx, double dy)
++{
++ struct wlr_surface *surface = NULL;
++ double sx, sy;
++
++ if (!change_x && !change_y)
++ return;
++
++ tabletapplymap(x, y, tablet->wlr_device);
++
++ // TODO: apply constraints
++ switch (tablet_tool->wlr_tool->type) {
++ case WLR_TABLET_TOOL_TYPE_LENS:
++ case WLR_TABLET_TOOL_TYPE_MOUSE:
++ wlr_cursor_move(cursor, tablet->wlr_device, dx, dy);
++ break;
++ default:
++ wlr_cursor_warp_absolute(cursor, tablet->wlr_device, change_x ? x : NAN, change_y ? y : NAN);
++ break;
++ }
++
++ motionnotify(0, NULL, 0, 0, 0, 0);
++
++ xytonode(cursor->x, cursor->y, &surface, NULL, NULL, &sx, &sy);
++ if (surface && !wlr_surface_accepts_tablet_v2(surface, tablet))
++ surface = NULL;
++
++ if (surface != tablet_curr_surface) {
++ if (tablet_curr_surface) {
++ // TODO: wait until all buttons released before leaving
++ if (tablet_tool)
++ wlr_tablet_v2_tablet_tool_notify_proximity_out(tablet_tool);
++ if (tablet_pad)
++ wlr_tablet_v2_tablet_pad_notify_leave(tablet_pad, tablet_curr_surface);
++ wl_list_remove(&destroy_tablet_surface_listener.link);
++ }
++ if (surface) {
++ if (tablet_pad)
++ wlr_tablet_v2_tablet_pad_notify_enter(tablet_pad, tablet, surface);
++ if (tablet_tool)
++ wlr_tablet_v2_tablet_tool_notify_proximity_in(tablet_tool, tablet, surface);
++ wl_signal_add(&surface->events.destroy, &destroy_tablet_surface_listener);
++ }
++ tablet_curr_surface = surface;
++ }
++
++ if (surface)
++ wlr_tablet_v2_tablet_tool_notify_motion(tablet_tool, sx, sy);
++}
++
++void
++tablettoolproximity(struct wl_listener *listener, void *data)
++{
++ struct wlr_tablet_tool_proximity_event *event = data;
++ struct wlr_tablet_tool *tool = event->tool;
++
++ if (!tablet_tool) {
++ tablet_tool = wlr_tablet_tool_create(tablet_mgr, seat, tool);
++ wl_signal_add(&tablet_tool->wlr_tool->events.destroy, &tablet_tool_destroy);
++ wl_signal_add(&tablet_tool->events.set_cursor, &request_cursor);
++ }
++
++ switch (event->state) {
++ case WLR_TABLET_TOOL_PROXIMITY_OUT:
++ wlr_tablet_v2_tablet_tool_notify_proximity_out(tablet_tool);
++ destroytabletsurfacenotify(NULL, NULL);
++ break;
++ case WLR_TABLET_TOOL_PROXIMITY_IN:
++ tablettoolmotion(tablet_tool, true, true, event->x, event->y, 0, 0);
++ break;
++ }
++}
++
++void
++tablettoolaxis(struct wl_listener *listener, void *data)
++{
++ struct wlr_tablet_tool_axis_event *event = data;
++
++ tablettoolmotion(tablet_tool,
++ event->updated_axes & WLR_TABLET_TOOL_AXIS_X,
++ event->updated_axes & WLR_TABLET_TOOL_AXIS_Y,
++ event->x, event->y, event->dx, event->dy);
++
++ if (event->updated_axes & WLR_TABLET_TOOL_AXIS_PRESSURE)
++ wlr_tablet_v2_tablet_tool_notify_pressure(tablet_tool, event->pressure);
++ if (event->updated_axes & WLR_TABLET_TOOL_AXIS_DISTANCE)
++ wlr_tablet_v2_tablet_tool_notify_distance(tablet_tool, event->distance);
++ if (event->updated_axes & (WLR_TABLET_TOOL_AXIS_TILT_X | WLR_TABLET_TOOL_AXIS_TILT_Y))
++ {
++ printf("DEBUGGING: In axis event handling\n");
++ wlr_tablet_v2_tablet_tool_notify_tilt(tablet_tool, event->tilt_x, event->tilt_y);
++ }
++ if (event->updated_axes & WLR_TABLET_TOOL_AXIS_ROTATION)
++ wlr_tablet_v2_tablet_tool_notify_rotation(tablet_tool, event->rotation);
++ if (event->updated_axes & WLR_TABLET_TOOL_AXIS_SLIDER)
++ wlr_tablet_v2_tablet_tool_notify_slider(tablet_tool, event->slider);
++ if (event->updated_axes & WLR_TABLET_TOOL_AXIS_WHEEL)
++ wlr_tablet_v2_tablet_tool_notify_wheel(tablet_tool, event->wheel_delta, 0);
++}
++
++void
++tablettoolbutton(struct wl_listener *listener, void *data)
++{
++ struct wlr_tablet_tool_button_event *event = data;
++ wlr_tablet_v2_tablet_tool_notify_button(tablet_tool, event->button,
++ (enum zwp_tablet_pad_v2_button_state)event->state);
++}
++
++void
++tablettooltip(struct wl_listener *listener, void *data)
++{
++ struct wlr_tablet_tool_tip_event *event = data;
++
++ if (!tablet_curr_surface) {
++ struct wlr_pointer_button_event fakeptrbtnevent = {
++ .button = BTN_LEFT,
++ .state = event->state == WLR_TABLET_TOOL_TIP_UP ?
++ WL_POINTER_BUTTON_STATE_RELEASED : WL_POINTER_BUTTON_STATE_PRESSED,
++ .time_msec = event->time_msec,
++ };
++ buttonpress(NULL, (void *)&fakeptrbtnevent);
++ }
++
++ if (event->state == WLR_TABLET_TOOL_TIP_UP) {
++ wlr_tablet_v2_tablet_tool_notify_up(tablet_tool);
++ return;
++ }
++
++ wlr_tablet_v2_tablet_tool_notify_down(tablet_tool);
++ wlr_tablet_tool_v2_start_implicit_grab(tablet_tool);
++}
++
+ void
+ tile(Monitor *m)
+ {
+--
+2.49.0
+