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backend/libinput: rework touch interface

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The wlr_libinput_input_device now owns its wlr_touch, instead of creating
a new wlr_libinput_input_device for it.
This commit is contained in:
Simon Zeni 2022-02-23 14:06:02 -05:00 • committed by Kirill Primak
parent d750c5ac67
commit 4f4dd95223
4 changed files with 63 additions and 87 deletions
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96
backend/libinput/touch.c
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@ -1,113 +1,87 @@
#include <assert.h>
#include <libinput.h>
#include <stdlib.h>
#include <wlr/backend/session.h>
#include <wlr/interfaces/wlr_touch.h>
#include <wlr/types/wlr_input_device.h>
#include <wlr/util/log.h>
#include "backend/libinput.h"
#include "util/signal.h"
const struct wlr_touch_impl libinput_touch_impl;
static void touch_destroy(struct wlr_touch *touch) {
/* wlr_touch belongs to the wlr_libinput_input_device */
}
struct wlr_touch *create_libinput_touch(
struct libinput_device *libinput_dev) {
assert(libinput_dev);
struct wlr_touch *wlr_touch = calloc(1, sizeof(struct wlr_touch));
if (!wlr_touch) {
wlr_log(WLR_ERROR, "Unable to allocate wlr_touch");
return NULL;
}
const char *name = libinput_device_get_name(libinput_dev);
const struct wlr_touch_impl libinput_touch_impl = {
.destroy = touch_destroy,
};
void init_device_touch(struct wlr_libinput_input_device *dev) {
const char *name = libinput_device_get_name(dev->handle);
struct wlr_touch *wlr_touch = &dev->touch;
wlr_touch_init(wlr_touch, &libinput_touch_impl, name);
wlr_touch->base.vendor = libinput_device_get_id_vendor(libinput_dev);
wlr_touch->base.product = libinput_device_get_id_product(libinput_dev);
return wlr_touch;
wlr_touch->base.vendor = libinput_device_get_id_vendor(dev->handle);
wlr_touch->base.product = libinput_device_get_id_product(dev->handle);
}
struct wlr_libinput_input_device *device_from_touch(
struct wlr_touch *wlr_touch) {
assert(wlr_touch->impl == &libinput_touch_impl);
struct wlr_libinput_input_device *dev =
wl_container_of(wlr_touch, dev, touch);
return dev;
}
void handle_touch_down(struct libinput_event *event,
struct libinput_device *libinput_dev) {
struct wlr_input_device *wlr_dev =
get_appropriate_device(WLR_INPUT_DEVICE_TOUCH, libinput_dev);
if (!wlr_dev) {
wlr_log(WLR_DEBUG, "Got a touch event for a device with no touch?");
return;
}
struct wlr_touch *touch) {
struct libinput_event_touch *tevent =
libinput_event_get_touch_event(event);
struct wlr_event_touch_down wlr_event = { 0 };
wlr_event.device = wlr_dev;
wlr_event.device = &touch->base;
wlr_event.time_msec =
usec_to_msec(libinput_event_touch_get_time_usec(tevent));
wlr_event.touch_id = libinput_event_touch_get_seat_slot(tevent);
wlr_event.x = libinput_event_touch_get_x_transformed(tevent, 1);
wlr_event.y = libinput_event_touch_get_y_transformed(tevent, 1);
wlr_signal_emit_safe(&wlr_dev->touch->events.down, &wlr_event);
wlr_signal_emit_safe(&touch->events.down, &wlr_event);
}
void handle_touch_up(struct libinput_event *event,
struct libinput_device *libinput_dev) {
struct wlr_input_device *wlr_dev =
get_appropriate_device(WLR_INPUT_DEVICE_TOUCH, libinput_dev);
if (!wlr_dev) {
wlr_log(WLR_DEBUG, "Got a touch event for a device with no touch?");
return;
}
struct wlr_touch *touch) {
struct libinput_event_touch *tevent =
libinput_event_get_touch_event(event);
struct wlr_event_touch_up wlr_event = { 0 };
wlr_event.device = wlr_dev;
wlr_event.device = &touch->base;
wlr_event.time_msec =
usec_to_msec(libinput_event_touch_get_time_usec(tevent));
wlr_event.touch_id = libinput_event_touch_get_seat_slot(tevent);
wlr_signal_emit_safe(&wlr_dev->touch->events.up, &wlr_event);
wlr_signal_emit_safe(&touch->events.up, &wlr_event);
}
void handle_touch_motion(struct libinput_event *event,
struct libinput_device *libinput_dev) {
struct wlr_input_device *wlr_dev =
get_appropriate_device(WLR_INPUT_DEVICE_TOUCH, libinput_dev);
if (!wlr_dev) {
wlr_log(WLR_DEBUG, "Got a touch event for a device with no touch?");
return;
}
struct wlr_touch *touch) {
struct libinput_event_touch *tevent =
libinput_event_get_touch_event(event);
struct wlr_event_touch_motion wlr_event = { 0 };
wlr_event.device = wlr_dev;
wlr_event.device = &touch->base;
wlr_event.time_msec =
usec_to_msec(libinput_event_touch_get_time_usec(tevent));
wlr_event.touch_id = libinput_event_touch_get_seat_slot(tevent);
wlr_event.x = libinput_event_touch_get_x_transformed(tevent, 1);
wlr_event.y = libinput_event_touch_get_y_transformed(tevent, 1);
wlr_signal_emit_safe(&wlr_dev->touch->events.motion, &wlr_event);
wlr_signal_emit_safe(&touch->events.motion, &wlr_event);
}
void handle_touch_cancel(struct libinput_event *event,
struct libinput_device *libinput_dev) {
struct wlr_input_device *wlr_dev =
get_appropriate_device(WLR_INPUT_DEVICE_TOUCH, libinput_dev);
if (!wlr_dev) {
wlr_log(WLR_DEBUG, "Got a touch event for a device with no touch?");
return;
}
struct wlr_touch *touch) {
struct libinput_event_touch *tevent =
libinput_event_get_touch_event(event);
struct wlr_event_touch_cancel wlr_event = { 0 };
wlr_event.device = wlr_dev;
wlr_event.device = &touch->base;
wlr_event.time_msec =
usec_to_msec(libinput_event_touch_get_time_usec(tevent));
wlr_event.touch_id = libinput_event_touch_get_seat_slot(tevent);
wlr_signal_emit_safe(&wlr_dev->touch->events.cancel, &wlr_event);
wlr_signal_emit_safe(&touch->events.cancel, &wlr_event);
}
void handle_touch_frame(struct libinput_event *event,
struct libinput_device *libinput_dev) {
struct wlr_input_device *wlr_dev =
get_appropriate_device(WLR_INPUT_DEVICE_TOUCH, libinput_dev);
if (!wlr_dev) {
wlr_log(WLR_DEBUG, "Got a touch event for a device with no touch?");
return;
}
wlr_signal_emit_safe(&wlr_dev->touch->events.frame, NULL);
struct wlr_touch *touch) {
wlr_signal_emit_safe(&touch->events.frame, NULL);
}