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