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272 lines
9.9 KiB
272 lines
9.9 KiB
#define _POSIX_C_SOURCE 200809L
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#include <string.h>
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#include <assert.h>
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#include <libinput.h>
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#include <stdlib.h>
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#include <wlr/interfaces/wlr_tablet_tool.h>
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#include <wlr/util/log.h>
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#include "backend/libinput.h"
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struct tablet_tool {
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struct wlr_tablet_tool wlr_tool;
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struct libinput_tablet_tool *handle;
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struct wl_list link; // wlr_libinput_input_device::tablet_tools
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};
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const struct wlr_tablet_impl libinput_tablet_impl = {
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.name = "libinput-tablet-tool",
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};
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void init_device_tablet(struct wlr_libinput_input_device *dev) {
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const char *name = libinput_device_get_name(dev->handle);
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struct wlr_tablet *wlr_tablet = &dev->tablet;
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wlr_tablet_init(wlr_tablet, &libinput_tablet_impl, name);
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wlr_tablet->base.vendor = libinput_device_get_id_vendor(dev->handle);
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wlr_tablet->base.product = libinput_device_get_id_product(dev->handle);
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libinput_device_get_size(dev->handle, &wlr_tablet->width_mm,
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&wlr_tablet->height_mm);
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struct udev_device *udev = libinput_device_get_udev_device(dev->handle);
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char **dst = wl_array_add(&wlr_tablet->paths, sizeof(char *));
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*dst = strdup(udev_device_get_syspath(udev));
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wl_list_init(&dev->tablet_tools);
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}
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static void tool_destroy(struct tablet_tool *tool) {
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wl_signal_emit_mutable(&tool->wlr_tool.events.destroy, &tool->wlr_tool);
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libinput_tablet_tool_unref(tool->handle);
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libinput_tablet_tool_set_user_data(tool->handle, NULL);
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wl_list_remove(&tool->link);
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free(tool);
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}
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void finish_device_tablet(struct wlr_libinput_input_device *dev) {
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struct tablet_tool *tool, *tmp;
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wl_list_for_each_safe(tool, tmp, &dev->tablet_tools, link) {
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tool_destroy(tool);
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}
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wlr_tablet_finish(&dev->tablet);
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}
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struct wlr_libinput_input_device *device_from_tablet(
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struct wlr_tablet *wlr_tablet) {
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assert(wlr_tablet->impl == &libinput_tablet_impl);
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struct wlr_libinput_input_device *dev =
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wl_container_of(wlr_tablet, dev, tablet);
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return dev;
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}
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static enum wlr_tablet_tool_type wlr_type_from_libinput_type(
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enum libinput_tablet_tool_type value) {
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switch (value) {
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case LIBINPUT_TABLET_TOOL_TYPE_PEN:
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return WLR_TABLET_TOOL_TYPE_PEN;
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case LIBINPUT_TABLET_TOOL_TYPE_ERASER:
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return WLR_TABLET_TOOL_TYPE_ERASER;
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case LIBINPUT_TABLET_TOOL_TYPE_BRUSH:
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return WLR_TABLET_TOOL_TYPE_BRUSH;
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case LIBINPUT_TABLET_TOOL_TYPE_PENCIL:
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return WLR_TABLET_TOOL_TYPE_PENCIL;
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case LIBINPUT_TABLET_TOOL_TYPE_AIRBRUSH:
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return WLR_TABLET_TOOL_TYPE_AIRBRUSH;
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case LIBINPUT_TABLET_TOOL_TYPE_MOUSE:
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return WLR_TABLET_TOOL_TYPE_MOUSE;
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case LIBINPUT_TABLET_TOOL_TYPE_LENS:
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return WLR_TABLET_TOOL_TYPE_LENS;
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case LIBINPUT_TABLET_TOOL_TYPE_TOTEM:
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return WLR_TABLET_TOOL_TYPE_TOTEM;
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}
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abort(); // unreachable
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}
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static struct tablet_tool *get_tablet_tool(
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struct wlr_libinput_input_device *dev,
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struct libinput_tablet_tool *libinput_tool) {
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struct tablet_tool *tool =
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libinput_tablet_tool_get_user_data(libinput_tool);
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if (tool) {
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return tool;
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}
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tool = calloc(1, sizeof(struct tablet_tool));
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if (tool == NULL) {
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wlr_log_errno(WLR_ERROR, "failed to allocate wlr_libinput_tablet_tool");
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return NULL;
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}
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tool->wlr_tool.type = wlr_type_from_libinput_type(
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libinput_tablet_tool_get_type(libinput_tool));
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tool->wlr_tool.hardware_serial =
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libinput_tablet_tool_get_serial(libinput_tool);
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tool->wlr_tool.hardware_wacom =
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libinput_tablet_tool_get_tool_id(libinput_tool);
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tool->wlr_tool.pressure = libinput_tablet_tool_has_pressure(libinput_tool);
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tool->wlr_tool.distance = libinput_tablet_tool_has_distance(libinput_tool);
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tool->wlr_tool.tilt = libinput_tablet_tool_has_tilt(libinput_tool);
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tool->wlr_tool.rotation = libinput_tablet_tool_has_rotation(libinput_tool);
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tool->wlr_tool.slider = libinput_tablet_tool_has_slider(libinput_tool);
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tool->wlr_tool.wheel = libinput_tablet_tool_has_wheel(libinput_tool);
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wl_signal_init(&tool->wlr_tool.events.destroy);
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tool->handle = libinput_tablet_tool_ref(libinput_tool);
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libinput_tablet_tool_set_user_data(libinput_tool, tool);
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wl_list_insert(&dev->tablet_tools, &tool->link);
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return tool;
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}
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void handle_tablet_tool_axis(struct libinput_event *event,
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struct wlr_tablet *wlr_tablet) {
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struct libinput_event_tablet_tool *tevent =
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libinput_event_get_tablet_tool_event(event);
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struct wlr_libinput_input_device *dev = device_from_tablet(wlr_tablet);
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struct tablet_tool *tool =
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get_tablet_tool(dev, libinput_event_tablet_tool_get_tool(tevent));
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struct wlr_tablet_tool_axis_event wlr_event = { 0 };
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wlr_event.tablet = wlr_tablet;
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wlr_event.tool = &tool->wlr_tool;
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wlr_event.time_msec =
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usec_to_msec(libinput_event_tablet_tool_get_time_usec(tevent));
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if (libinput_event_tablet_tool_x_has_changed(tevent)) {
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wlr_event.updated_axes |= WLR_TABLET_TOOL_AXIS_X;
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wlr_event.x = libinput_event_tablet_tool_get_x_transformed(tevent, 1);
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wlr_event.dx = libinput_event_tablet_tool_get_dx(tevent);
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}
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if (libinput_event_tablet_tool_y_has_changed(tevent)) {
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wlr_event.updated_axes |= WLR_TABLET_TOOL_AXIS_Y;
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wlr_event.y = libinput_event_tablet_tool_get_y_transformed(tevent, 1);
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wlr_event.dy = libinput_event_tablet_tool_get_dy(tevent);
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}
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if (libinput_event_tablet_tool_pressure_has_changed(tevent)) {
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wlr_event.updated_axes |= WLR_TABLET_TOOL_AXIS_PRESSURE;
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wlr_event.pressure = libinput_event_tablet_tool_get_pressure(tevent);
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}
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if (libinput_event_tablet_tool_distance_has_changed(tevent)) {
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wlr_event.updated_axes |= WLR_TABLET_TOOL_AXIS_DISTANCE;
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wlr_event.distance = libinput_event_tablet_tool_get_distance(tevent);
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}
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if (libinput_event_tablet_tool_tilt_x_has_changed(tevent)) {
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wlr_event.updated_axes |= WLR_TABLET_TOOL_AXIS_TILT_X;
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wlr_event.tilt_x = libinput_event_tablet_tool_get_tilt_x(tevent);
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}
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if (libinput_event_tablet_tool_tilt_y_has_changed(tevent)) {
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wlr_event.updated_axes |= WLR_TABLET_TOOL_AXIS_TILT_Y;
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wlr_event.tilt_y = libinput_event_tablet_tool_get_tilt_y(tevent);
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}
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if (libinput_event_tablet_tool_rotation_has_changed(tevent)) {
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wlr_event.updated_axes |= WLR_TABLET_TOOL_AXIS_ROTATION;
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wlr_event.rotation = libinput_event_tablet_tool_get_rotation(tevent);
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}
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if (libinput_event_tablet_tool_slider_has_changed(tevent)) {
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wlr_event.updated_axes |= WLR_TABLET_TOOL_AXIS_SLIDER;
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wlr_event.slider = libinput_event_tablet_tool_get_slider_position(tevent);
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}
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if (libinput_event_tablet_tool_wheel_has_changed(tevent)) {
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wlr_event.updated_axes |= WLR_TABLET_TOOL_AXIS_WHEEL;
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wlr_event.wheel_delta = libinput_event_tablet_tool_get_wheel_delta(tevent);
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}
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wl_signal_emit_mutable(&wlr_tablet->events.axis, &wlr_event);
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}
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void handle_tablet_tool_proximity(struct libinput_event *event,
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struct wlr_tablet *wlr_tablet) {
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struct libinput_event_tablet_tool *tevent =
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libinput_event_get_tablet_tool_event(event);
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struct wlr_libinput_input_device *dev = device_from_tablet(wlr_tablet);
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struct tablet_tool *tool =
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get_tablet_tool(dev, libinput_event_tablet_tool_get_tool(tevent));
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struct wlr_tablet_tool_proximity_event wlr_event = { 0 };
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wlr_event.tablet = wlr_tablet;
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wlr_event.tool = &tool->wlr_tool;
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wlr_event.time_msec =
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usec_to_msec(libinput_event_tablet_tool_get_time_usec(tevent));
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wlr_event.x = libinput_event_tablet_tool_get_x_transformed(tevent, 1);
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wlr_event.y = libinput_event_tablet_tool_get_y_transformed(tevent, 1);
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switch (libinput_event_tablet_tool_get_proximity_state(tevent)) {
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case LIBINPUT_TABLET_TOOL_PROXIMITY_STATE_OUT:
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wlr_event.state = WLR_TABLET_TOOL_PROXIMITY_OUT;
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break;
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case LIBINPUT_TABLET_TOOL_PROXIMITY_STATE_IN:
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wlr_event.state = WLR_TABLET_TOOL_PROXIMITY_IN;
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break;
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}
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wl_signal_emit_mutable(&wlr_tablet->events.proximity, &wlr_event);
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if (libinput_event_tablet_tool_get_proximity_state(tevent) ==
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LIBINPUT_TABLET_TOOL_PROXIMITY_STATE_IN) {
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handle_tablet_tool_axis(event, wlr_tablet);
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}
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// If the tool is not unique, libinput will not find it again after the
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// proximity out, so we should destroy it
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if (!libinput_tablet_tool_is_unique(tool->handle)
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&& libinput_event_tablet_tool_get_proximity_state(tevent) ==
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LIBINPUT_TABLET_TOOL_PROXIMITY_STATE_OUT) {
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// The tool isn't unique, it can't be on multiple tablets
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tool_destroy(tool);
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}
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}
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void handle_tablet_tool_tip(struct libinput_event *event,
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struct wlr_tablet *wlr_tablet) {
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handle_tablet_tool_axis(event, wlr_tablet);
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struct libinput_event_tablet_tool *tevent =
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libinput_event_get_tablet_tool_event(event);
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struct wlr_libinput_input_device *dev = device_from_tablet(wlr_tablet);
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struct tablet_tool *tool =
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get_tablet_tool(dev, libinput_event_tablet_tool_get_tool(tevent));
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struct wlr_tablet_tool_tip_event wlr_event = { 0 };
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wlr_event.tablet = wlr_tablet;
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wlr_event.tool = &tool->wlr_tool;
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wlr_event.time_msec =
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usec_to_msec(libinput_event_tablet_tool_get_time_usec(tevent));
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wlr_event.x = libinput_event_tablet_tool_get_x_transformed(tevent, 1);
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wlr_event.y = libinput_event_tablet_tool_get_y_transformed(tevent, 1);
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switch (libinput_event_tablet_tool_get_tip_state(tevent)) {
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case LIBINPUT_TABLET_TOOL_TIP_UP:
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wlr_event.state = WLR_TABLET_TOOL_TIP_UP;
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break;
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case LIBINPUT_TABLET_TOOL_TIP_DOWN:
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wlr_event.state = WLR_TABLET_TOOL_TIP_DOWN;
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break;
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}
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wl_signal_emit_mutable(&wlr_tablet->events.tip, &wlr_event);
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}
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void handle_tablet_tool_button(struct libinput_event *event,
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struct wlr_tablet *wlr_tablet) {
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handle_tablet_tool_axis(event, wlr_tablet);
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struct libinput_event_tablet_tool *tevent =
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libinput_event_get_tablet_tool_event(event);
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struct wlr_libinput_input_device *dev = device_from_tablet(wlr_tablet);
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struct tablet_tool *tool =
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get_tablet_tool(dev, libinput_event_tablet_tool_get_tool(tevent));
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struct wlr_tablet_tool_button_event wlr_event = { 0 };
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wlr_event.tablet = wlr_tablet;
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wlr_event.tool = &tool->wlr_tool;
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wlr_event.time_msec =
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usec_to_msec(libinput_event_tablet_tool_get_time_usec(tevent));
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wlr_event.button = libinput_event_tablet_tool_get_button(tevent);
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switch (libinput_event_tablet_tool_get_button_state(tevent)) {
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case LIBINPUT_BUTTON_STATE_RELEASED:
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wlr_event.state = WLR_BUTTON_RELEASED;
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break;
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case LIBINPUT_BUTTON_STATE_PRESSED:
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wlr_event.state = WLR_BUTTON_PRESSED;
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break;
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}
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wl_signal_emit_mutable(&wlr_tablet->events.button, &wlr_event);
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}
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