270 lines
8.4 KiB
C
270 lines
8.4 KiB
C
#define _XOPEN_SOURCE 500
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#include <assert.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <string.h>
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#include <wayland-client.h>
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#include <wlr/interfaces/wlr_output.h>
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#include <wlr/interfaces/wlr_input_device.h>
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#include <wlr/interfaces/wlr_pointer.h>
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#include <wlr/interfaces/wlr_keyboard.h>
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#include <wlr/interfaces/wlr_touch.h>
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#include <wlr/util/log.h>
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#include "backend/wayland.h"
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static void pointer_handle_enter(void *data, struct wl_pointer *wl_pointer,
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uint32_t serial, struct wl_surface *surface, wl_fixed_t surface_x,
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wl_fixed_t surface_y) {
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struct wlr_input_device *dev = data;
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assert(dev && dev->pointer && dev->pointer->state);
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struct wlr_output* output = wlr_wl_output_for_surface(dev->state->backend,
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surface);
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if (!output) {
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wlr_log(L_ERROR, "pointer entered invalid surface");
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return;
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}
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dev->pointer->state->current_output = output;
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}
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static void pointer_handle_leave(void *data, struct wl_pointer *wl_pointer,
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uint32_t serial, struct wl_surface *surface) {
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struct wlr_input_device *dev = data;
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assert(dev && dev->pointer && dev->pointer->state);
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dev->pointer->state->current_output = NULL;
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}
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static void pointer_handle_motion(void *data, struct wl_pointer *wl_pointer,
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uint32_t time, wl_fixed_t surface_x, wl_fixed_t surface_y) {
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struct wlr_input_device *dev = data;
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assert(dev && dev->pointer && dev->pointer->state);
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struct wlr_pointer_state *state = dev->pointer->state;
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if(!state->current_output) {
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wlr_log(L_ERROR, "pointer motion event without current output");
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return;
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}
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int width, height;
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wl_egl_window_get_attached_size(state->current_output->state->egl_window,
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&width, &height);
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struct wlr_event_pointer_motion_absolute wlr_event;
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wlr_event.time_sec = time / 1000;
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wlr_event.time_usec = time * 1000;
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wlr_event.width_mm = width;
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wlr_event.height_mm = height;
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wlr_event.x_mm = wl_fixed_to_double(surface_x);
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wlr_event.y_mm = wl_fixed_to_double(surface_y);
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wl_signal_emit(&dev->pointer->events.motion_absolute, &wlr_event);
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}
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static void pointer_handle_button(void *data, struct wl_pointer *wl_pointer,
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uint32_t serial, uint32_t time, uint32_t button, uint32_t state) {
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struct wlr_input_device *dev = data;
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assert(dev && dev->pointer);
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struct wlr_event_pointer_button wlr_event;
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wlr_event.button = button;
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wlr_event.state = state;
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wlr_event.time_sec = time / 1000;
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wlr_event.time_usec = time * 1000;
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wl_signal_emit(&dev->pointer->events.button, &wlr_event);
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}
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static void pointer_handle_axis(void *data, struct wl_pointer *wl_pointer,
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uint32_t time, uint32_t axis, wl_fixed_t value) {
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struct wlr_input_device *dev = data;
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assert(dev && dev->pointer);
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struct wlr_event_pointer_axis wlr_event;
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wlr_event.delta = value;
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wlr_event.orientation = axis;
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wlr_event.time_sec = time / 1000;
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wlr_event.time_usec = time * 1000;
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wlr_event.source = dev->pointer->state->axis_source;
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wl_signal_emit(&dev->pointer->events.axis, &wlr_event);
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}
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static void pointer_handle_frame(void *data, struct wl_pointer *wl_pointer) {
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}
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static void pointer_handle_axis_source(void *data, struct wl_pointer *wl_pointer,
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uint32_t axis_source) {
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struct wlr_input_device *dev = data;
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assert(dev && dev->pointer && dev->pointer->state);
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dev->pointer->state->axis_source = axis_source;
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}
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static void pointer_handle_axis_stop(void *data, struct wl_pointer *wl_pointer,
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uint32_t time, uint32_t axis) {
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}
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static void pointer_handle_axis_discrete(void *data, struct wl_pointer *wl_pointer,
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uint32_t axis, int32_t discrete) {
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}
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static const struct wl_pointer_listener pointer_listener = {
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.enter = pointer_handle_enter,
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.leave = pointer_handle_leave,
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.motion = pointer_handle_motion,
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.button = pointer_handle_button,
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.axis = pointer_handle_axis,
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.frame = pointer_handle_frame,
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.axis_source = pointer_handle_axis_source,
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.axis_stop = pointer_handle_axis_stop,
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.axis_discrete = pointer_handle_axis_discrete
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};
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static void keyboard_handle_keymap(void *data, struct wl_keyboard *wl_keyboard,
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uint32_t format, int32_t fd, uint32_t size) {
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}
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static void keyboard_handle_enter(void *data, struct wl_keyboard *wl_keyboard,
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uint32_t serial, struct wl_surface *surface, struct wl_array *keys) {
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}
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static void keyboard_handle_leave(void *data, struct wl_keyboard *wl_keyboard,
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uint32_t serial, struct wl_surface *surface) {
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}
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static void keyboard_handle_key(void *data, struct wl_keyboard *wl_keyboard,
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uint32_t serial, uint32_t time, uint32_t key, uint32_t state) {
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struct wlr_input_device *dev = data;
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assert(dev && dev->keyboard);
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struct wlr_event_keyboard_key wlr_event;
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wlr_event.keycode = key;
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wlr_event.state = state;
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wlr_event.time_sec = time / 1000;
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wlr_event.time_usec = time * 1000;
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wl_signal_emit(&dev->keyboard->events.key, &wlr_event);
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}
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static void keyboard_handle_modifiers(void *data, struct wl_keyboard *wl_keyboard,
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uint32_t serial, uint32_t mods_depressed, uint32_t mods_latched,
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uint32_t mods_locked, uint32_t group) {
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}
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static void keyboard_handle_repeat_info(void *data, struct wl_keyboard *wl_keyboard,
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int32_t rate, int32_t delay) {
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}
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static struct wl_keyboard_listener keyboard_listener = {
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.keymap = keyboard_handle_keymap,
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.enter = keyboard_handle_enter,
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.leave = keyboard_handle_leave,
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.key = keyboard_handle_key,
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.modifiers = keyboard_handle_modifiers,
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.repeat_info = keyboard_handle_repeat_info
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};
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static void input_device_destroy(struct wlr_input_device_state *state) {
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wl_signal_emit(&state->backend->backend.events.input_remove, state->wlr_device);
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if (state->resource)
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wl_proxy_destroy(state->resource);
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free(state);
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}
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static struct wlr_input_device_impl input_device_impl = {
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.destroy = input_device_destroy
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};
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static void pointer_destroy(struct wlr_pointer_state *state) {
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free(state);
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}
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static struct wlr_pointer_impl pointer_impl = {
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.destroy = pointer_destroy
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};
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static struct wlr_input_device *allocate_device(struct wlr_wl_backend *backend,
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enum wlr_input_device_type type) {
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struct wlr_input_device_state *devstate;
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if (!(devstate = calloc(1, sizeof(struct wlr_input_device_state)))) {
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wlr_log(L_ERROR, "Allocation failed: %s", strerror(errno));
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return NULL;
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}
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devstate->backend = backend;
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int vendor = 0;
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int product = 0;
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const char *name = "wayland";
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struct wlr_input_device *wlr_device = wlr_input_device_create(
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type, &input_device_impl, devstate,
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name, vendor, product);
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if (!wlr_device) {
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free(devstate);
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return NULL;
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}
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devstate->wlr_device = wlr_device;
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list_add(backend->devices, wlr_device);
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return wlr_device;
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}
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static void seat_handle_capabilities(void *data, struct wl_seat *wl_seat,
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enum wl_seat_capability caps) {
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struct wlr_wl_backend *backend = data;
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assert(backend->seat == wl_seat);
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if ((caps & WL_SEAT_CAPABILITY_POINTER)) {
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wlr_log(L_DEBUG, "seat %p offered pointer", (void*) wl_seat);
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struct wlr_pointer_state *pointer_state;
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if (!(pointer_state = calloc(1, sizeof(struct wlr_pointer_state)))) {
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wlr_log(L_ERROR, "Unable to allocate wlr_pointer_state");
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return;
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}
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struct wlr_input_device *wlr_device;
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if (!(wlr_device = allocate_device(backend, WLR_INPUT_DEVICE_POINTER))) {
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free(pointer_state);
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wlr_log(L_ERROR, "Unable to allocate wlr_device for pointer");
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return;
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}
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struct wl_pointer *wl_pointer = wl_seat_get_pointer(wl_seat);
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wl_pointer_add_listener(wl_pointer, &pointer_listener, wlr_device);
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wlr_device->pointer = wlr_pointer_create(&pointer_impl, pointer_state);
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wlr_device->state->resource = wl_pointer;
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wl_signal_emit(&backend->backend.events.input_add, wlr_device);
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}
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if ((caps & WL_SEAT_CAPABILITY_KEYBOARD)) {
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wlr_log(L_DEBUG, "seat %p offered keyboard", (void*) wl_seat);
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struct wlr_input_device *wlr_device = allocate_device(backend,
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WLR_INPUT_DEVICE_KEYBOARD);
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if (!wlr_device) {
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wlr_log(L_ERROR, "Unable to allocate wl_pointer device");
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return;
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}
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struct wl_keyboard *wl_keyboard = wl_seat_get_keyboard(wl_seat);
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wl_keyboard_add_listener(wl_keyboard, &keyboard_listener, wlr_device);
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wlr_device->keyboard = wlr_keyboard_create(NULL, NULL);
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wlr_device->state->resource = wl_keyboard;
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wl_signal_emit(&backend->backend.events.input_add, wlr_device);
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}
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}
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static void seat_handle_name(void *data, struct wl_seat *wl_seat, const char *name) {
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struct wlr_wl_backend *backend = data;
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assert(backend->seat == wl_seat);
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// Do we need to check if seatName was previously set for name change?
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free(backend->seat_name);
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backend->seat_name = strdup(name);
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}
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const struct wl_seat_listener seat_listener = {
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.capabilities = seat_handle_capabilities,
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.name = seat_handle_name,
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};
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