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#define _POSIX_C_SOURCE 200809L
#include <assert.h>
#include <libinput.h>
#include <stdlib.h>
#include <wayland-util.h>
#include <wlr/backend/session.h>
#include <wlr/util/log.h>
#include "backend/libinput.h"
#include "util/array.h"
#include "util/signal.h"
struct wlr_input_device *get_appropriate_device(
enum wlr_input_device_type desired_type,
struct libinput_device *libinput_dev) {
struct wl_list *wlr_devices = libinput_device_get_user_data(libinput_dev);
if (!wlr_devices) {
return NULL;
}
struct wlr_libinput_input_device *dev;
wl_list_for_each(dev, wlr_devices, link) {
if (dev->wlr_input_device.type == desired_type) {
return &dev->wlr_input_device;
}
}
return NULL;
}
void destroy_libinput_input_device(struct wlr_libinput_input_device *dev)
{
/**
* TODO remove the redundant wlr_input_device from wlr_libinput_input_device
* wlr_libinput_input_device::wlr_input_device is not owned by its input
* device type, which means we have 2 wlr_input_device to cleanup
*/
if (dev->wlr_input_device._device) {
wlr_input_device_destroy(&dev->wlr_input_device);
}
wlr_input_device_finish(&dev->wlr_input_device);
libinput_device_unref(dev->handle);
wl_list_remove(&dev->link);
free(dev);
}
static struct wlr_input_device *allocate_device(
struct wlr_libinput_backend *backend,
struct libinput_device *libinput_dev, struct wl_list *wlr_devices,
enum wlr_input_device_type type) {
const char *name = libinput_device_get_name(libinput_dev);
struct wlr_libinput_input_device *dev =
calloc(1, sizeof(struct wlr_libinput_input_device));
if (dev == NULL) {
return NULL;
}
struct wlr_input_device *wlr_dev = &dev->wlr_input_device;
libinput_device_get_size(libinput_dev,
&wlr_dev->width_mm, &wlr_dev->height_mm);
const char *output_name = libinput_device_get_output_name(libinput_dev);
if (output_name != NULL) {
wlr_dev->output_name = strdup(output_name);
}
wl_list_insert(wlr_devices, &dev->link);
dev->handle = libinput_dev;
libinput_device_ref(libinput_dev);
wlr_input_device_init(wlr_dev, type, name);
wlr_dev->vendor = libinput_device_get_id_vendor(libinput_dev);
wlr_dev->product = libinput_device_get_id_product(libinput_dev);
return wlr_dev;
}
bool wlr_input_device_is_libinput(struct wlr_input_device *wlr_dev) {
switch (wlr_dev->type) {
case WLR_INPUT_DEVICE_KEYBOARD:
return wlr_dev->keyboard->impl == &libinput_keyboard_impl;
case WLR_INPUT_DEVICE_POINTER:
return wlr_dev->pointer->impl == &libinput_pointer_impl;
case WLR_INPUT_DEVICE_TOUCH:
return wlr_dev->touch->impl == &libinput_touch_impl;
case WLR_INPUT_DEVICE_TABLET_TOOL:
return wlr_dev->tablet->impl == &libinput_tablet_impl;
case WLR_INPUT_DEVICE_TABLET_PAD:
return wlr_dev->tablet_pad->impl == &libinput_tablet_pad_impl;
case WLR_INPUT_DEVICE_SWITCH:
return wlr_dev->switch_device->impl == &libinput_switch_impl;
default:
return false;
}
}
static void handle_device_added(struct wlr_libinput_backend *backend,
struct libinput_device *libinput_dev) {
/*
* Note: the wlr API exposes only devices with a single capability, because
* that meshes better with how Wayland does things and is a bit simpler.
* However, libinput devices often have multiple capabilities - in such
* cases we have to create several devices.
*/
int vendor = libinput_device_get_id_vendor(libinput_dev);
int product = libinput_device_get_id_product(libinput_dev);
const char *name = libinput_device_get_name(libinput_dev);
struct wl_list *wlr_devices = calloc(1, sizeof(struct wl_list));
if (!wlr_devices) {
wlr_log(WLR_ERROR, "Allocation failed");
return;
}
wl_list_init(wlr_devices);
wlr_log(WLR_DEBUG, "Added %s [%d:%d]", name, vendor, product);
if (libinput_device_has_capability(
libinput_dev, LIBINPUT_DEVICE_CAP_KEYBOARD)) {
struct wlr_input_device *wlr_dev = allocate_device(backend,
libinput_dev, wlr_devices, WLR_INPUT_DEVICE_KEYBOARD);
if (!wlr_dev) {
goto fail;
}
wlr_dev->keyboard = create_libinput_keyboard(libinput_dev);
if (!wlr_dev->keyboard) {
free(wlr_dev);
goto fail;
}
wlr_signal_emit_safe(&backend->backend.events.new_input, wlr_dev);
}
if (libinput_device_has_capability(
libinput_dev, LIBINPUT_DEVICE_CAP_POINTER)) {
struct wlr_input_device *wlr_dev = allocate_device(backend,
libinput_dev, wlr_devices, WLR_INPUT_DEVICE_POINTER);
if (!wlr_dev) {
goto fail;
}
wlr_dev->pointer = create_libinput_pointer(libinput_dev);
if (!wlr_dev->pointer) {
free(wlr_dev);
goto fail;
}
wlr_signal_emit_safe(&backend->backend.events.new_input, wlr_dev);
}
if (libinput_device_has_capability(
libinput_dev, LIBINPUT_DEVICE_CAP_TOUCH)) {
struct wlr_input_device *wlr_dev = allocate_device(backend,
libinput_dev, wlr_devices, WLR_INPUT_DEVICE_TOUCH);
if (!wlr_dev) {
goto fail;
}
wlr_dev->touch = create_libinput_touch(libinput_dev);
if (!wlr_dev->touch) {
free(wlr_dev);
goto fail;
}
wlr_signal_emit_safe(&backend->backend.events.new_input, wlr_dev);
}
if (libinput_device_has_capability(libinput_dev,
LIBINPUT_DEVICE_CAP_TABLET_TOOL)) {
struct wlr_input_device *wlr_dev = allocate_device(backend,
libinput_dev, wlr_devices, WLR_INPUT_DEVICE_TABLET_TOOL);
if (!wlr_dev) {
goto fail;
}
wlr_dev->tablet = create_libinput_tablet(libinput_dev);
if (!wlr_dev->tablet) {
free(wlr_dev);
goto fail;
}
wlr_signal_emit_safe(&backend->backend.events.new_input, wlr_dev);
}
if (libinput_device_has_capability(
libinput_dev, LIBINPUT_DEVICE_CAP_TABLET_PAD)) {
struct wlr_input_device *wlr_dev = allocate_device(backend,
libinput_dev, wlr_devices, WLR_INPUT_DEVICE_TABLET_PAD);
if (!wlr_dev) {
goto fail;
}
wlr_dev->tablet_pad = create_libinput_tablet_pad(libinput_dev);
if (!wlr_dev->tablet_pad) {
free(wlr_dev);
goto fail;
}
wlr_signal_emit_safe(&backend->backend.events.new_input, wlr_dev);
}
if (libinput_device_has_capability(
libinput_dev, LIBINPUT_DEVICE_CAP_GESTURE)) {
// TODO
}
if (libinput_device_has_capability(
libinput_dev, LIBINPUT_DEVICE_CAP_SWITCH)) {
struct wlr_input_device *wlr_dev = allocate_device(backend,
libinput_dev, wlr_devices, WLR_INPUT_DEVICE_SWITCH);
if (!wlr_dev) {
goto fail;
}
wlr_dev->switch_device = create_libinput_switch(libinput_dev);
if (!wlr_dev->switch_device) {
free(wlr_dev);
goto fail;
}
wlr_signal_emit_safe(&backend->backend.events.new_input, wlr_dev);
}
if (!wl_list_empty(wlr_devices)) {
struct wl_list **dst = wl_array_add(&backend->wlr_device_lists, sizeof(wlr_devices));
if (!dst) {
goto fail;
}
*dst = wlr_devices;
libinput_device_set_user_data(libinput_dev, wlr_devices);
} else {
free(wlr_devices);
}
return;
fail:
wlr_log(WLR_ERROR, "Could not allocate new device");
struct wlr_libinput_input_device *dev, *tmp_dev;
wl_list_for_each_safe(dev, tmp_dev, wlr_devices, link) {
free(dev);
}
free(wlr_devices);
}
static void handle_device_removed(struct wlr_libinput_backend *backend,
struct libinput_device *libinput_dev) {
struct wl_list *wlr_devices = libinput_device_get_user_data(libinput_dev);
int vendor = libinput_device_get_id_vendor(libinput_dev);
int product = libinput_device_get_id_product(libinput_dev);
const char *name = libinput_device_get_name(libinput_dev);
wlr_log(WLR_DEBUG, "Removing %s [%d:%d]", name, vendor, product);
if (!wlr_devices) {
return;
}
struct wlr_libinput_input_device *dev, *tmp_dev;
wl_list_for_each_safe(dev, tmp_dev, wlr_devices, link) {
destroy_libinput_input_device(dev);
}
size_t i = 0;
struct wl_list **ptr;
wl_array_for_each(ptr, &backend->wlr_device_lists) {
struct wl_list *iter = *ptr;
if (iter == wlr_devices) {
array_remove_at(&backend->wlr_device_lists,
i * sizeof(struct wl_list *), sizeof(struct wl_list *));
break;
}
i++;
}
free(wlr_devices);
}
void handle_libinput_event(struct wlr_libinput_backend *backend,
struct libinput_event *event) {
struct libinput_device *libinput_dev = libinput_event_get_device(event);
enum libinput_event_type event_type = libinput_event_get_type(event);
switch (event_type) {
case LIBINPUT_EVENT_DEVICE_ADDED:
handle_device_added(backend, libinput_dev);
break;
case LIBINPUT_EVENT_DEVICE_REMOVED:
handle_device_removed(backend, libinput_dev);
break;
case LIBINPUT_EVENT_KEYBOARD_KEY:
handle_keyboard_key(event, libinput_dev);
break;
case LIBINPUT_EVENT_POINTER_MOTION:
handle_pointer_motion(event, libinput_dev);
break;
case LIBINPUT_EVENT_POINTER_MOTION_ABSOLUTE:
handle_pointer_motion_abs(event, libinput_dev);
break;
case LIBINPUT_EVENT_POINTER_BUTTON:
handle_pointer_button(event, libinput_dev);
break;
case LIBINPUT_EVENT_POINTER_AXIS:
handle_pointer_axis(event, libinput_dev);
break;
case LIBINPUT_EVENT_TOUCH_DOWN:
handle_touch_down(event, libinput_dev);
break;
case LIBINPUT_EVENT_TOUCH_UP:
handle_touch_up(event, libinput_dev);
break;
case LIBINPUT_EVENT_TOUCH_MOTION:
handle_touch_motion(event, libinput_dev);
break;
case LIBINPUT_EVENT_TOUCH_CANCEL:
handle_touch_cancel(event, libinput_dev);
break;
case LIBINPUT_EVENT_TOUCH_FRAME:
handle_touch_frame(event, libinput_dev);
break;
case LIBINPUT_EVENT_TABLET_TOOL_AXIS:
handle_tablet_tool_axis(event, libinput_dev);
break;
case LIBINPUT_EVENT_TABLET_TOOL_PROXIMITY:
handle_tablet_tool_proximity(event, libinput_dev);
break;
case LIBINPUT_EVENT_TABLET_TOOL_TIP:
handle_tablet_tool_tip(event, libinput_dev);
break;
case LIBINPUT_EVENT_TABLET_TOOL_BUTTON:
handle_tablet_tool_button(event, libinput_dev);
break;
case LIBINPUT_EVENT_TABLET_PAD_BUTTON:
handle_tablet_pad_button(event, libinput_dev);
break;
case LIBINPUT_EVENT_TABLET_PAD_RING:
handle_tablet_pad_ring(event, libinput_dev);
break;
case LIBINPUT_EVENT_TABLET_PAD_STRIP:
handle_tablet_pad_strip(event, libinput_dev);
break;
case LIBINPUT_EVENT_SWITCH_TOGGLE:
handle_switch_toggle(event, libinput_dev);
break;
case LIBINPUT_EVENT_GESTURE_SWIPE_BEGIN:
handle_pointer_swipe_begin(event, libinput_dev);
break;
case LIBINPUT_EVENT_GESTURE_SWIPE_UPDATE:
handle_pointer_swipe_update(event, libinput_dev);
break;
case LIBINPUT_EVENT_GESTURE_SWIPE_END:
handle_pointer_swipe_end(event, libinput_dev);
break;
case LIBINPUT_EVENT_GESTURE_PINCH_BEGIN:
handle_pointer_pinch_begin(event, libinput_dev);
break;
case LIBINPUT_EVENT_GESTURE_PINCH_UPDATE:
handle_pointer_pinch_update(event, libinput_dev);
break;
case LIBINPUT_EVENT_GESTURE_PINCH_END:
handle_pointer_pinch_end(event, libinput_dev);
break;
#if LIBINPUT_HAS_HOLD_GESTURES
case LIBINPUT_EVENT_GESTURE_HOLD_BEGIN:
handle_pointer_hold_begin(event, libinput_dev);
break;
case LIBINPUT_EVENT_GESTURE_HOLD_END:
handle_pointer_hold_end(event, libinput_dev);
break;
#endif
default:
wlr_log(WLR_DEBUG, "Unknown libinput event %d", event_type);
break;
}
}
|
