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380 lines
11 KiB
380 lines
11 KiB
#define _XOPEN_SOURCE 500
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#include <assert.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include <wayland-client.h>
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#include <wlr/interfaces/wlr_input_device.h>
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#include <wlr/interfaces/wlr_keyboard.h>
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#include <wlr/interfaces/wlr_output.h>
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#include <wlr/interfaces/wlr_pointer.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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#include "util/signal.h"
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static struct wlr_wl_pointer *output_get_pointer(struct wlr_wl_output *output) {
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struct wlr_input_device *wlr_dev;
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wl_list_for_each(wlr_dev, &output->backend->devices, link) {
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if (wlr_dev->type != WLR_INPUT_DEVICE_POINTER) {
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continue;
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}
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struct wlr_wl_pointer *pointer = pointer_get_wl(wlr_dev->pointer);
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if (pointer->output == output) {
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return pointer;
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}
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}
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return NULL;
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}
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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 sx,
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wl_fixed_t sy) {
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struct wlr_wl_backend *backend = data;
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if (surface == NULL) {
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return;
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}
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struct wlr_wl_output *output = wl_surface_get_user_data(surface);
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struct wlr_wl_pointer *pointer = output_get_pointer(output);
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if (output == NULL) {
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return;
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}
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output->enter_serial = serial;
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backend->current_pointer = pointer;
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update_wl_output_cursor(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_wl_backend *backend = data;
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if (surface == NULL) {
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return;
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}
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struct wlr_wl_output *output = wl_surface_get_user_data(surface);
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output->enter_serial = 0;
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if (backend->current_pointer == NULL ||
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backend->current_pointer->output != output) {
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return;
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}
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backend->current_pointer = 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 sx, wl_fixed_t sy) {
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struct wlr_wl_backend *backend = data;
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struct wlr_wl_pointer *pointer = backend->current_pointer;
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if (pointer == NULL) {
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return;
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}
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struct wlr_output *wlr_output = &pointer->output->wlr_output;
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struct wlr_box box = {
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.x = wl_fixed_to_int(sx),
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.y = wl_fixed_to_int(sy),
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};
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wlr_box_transform(&box, wlr_output->transform, wlr_output->width,
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wlr_output->height, &box);
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box.x /= wlr_output->scale;
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box.y /= wlr_output->scale;
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int output_width, output_height;
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wlr_output_effective_resolution(&pointer->output->wlr_output,
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&output_width, &output_height);
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struct wlr_event_pointer_motion_absolute event = {
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.device = &pointer->input_device->wlr_input_device,
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.time_msec = time,
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.x = (double)box.x / output_width,
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.y = (double)box.y / output_height,
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};
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wlr_signal_emit_safe(&pointer->wlr_pointer.events.motion_absolute, &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_wl_backend *backend = data;
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struct wlr_wl_pointer *pointer = backend->current_pointer;
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if (pointer == NULL) {
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return;
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}
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struct wlr_event_pointer_button event = {
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.device = &pointer->input_device->wlr_input_device,
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.button = button,
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.state = state,
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.time_msec = time,
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};
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wlr_signal_emit_safe(&pointer->wlr_pointer.events.button, &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_wl_backend *backend = data;
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struct wlr_wl_pointer *pointer = backend->current_pointer;
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if (pointer == NULL) {
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return;
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}
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struct wlr_event_pointer_axis event = {
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.device = &pointer->input_device->wlr_input_device,
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.delta = wl_fixed_to_double(value),
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.orientation = axis,
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.time_msec = time,
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.source = pointer->axis_source,
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};
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wlr_signal_emit_safe(&pointer->wlr_pointer.events.axis, &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_wl_backend *backend = data;
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struct wlr_wl_pointer *pointer = backend->current_pointer;
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if (pointer == NULL) {
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return;
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}
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pointer->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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// TODO: set keymap
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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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.keycode = key,
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.state = state,
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.time_msec = time,
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.update_state = false,
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};
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wlr_keyboard_notify_key(dev->keyboard, &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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struct wlr_input_device *dev = data;
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assert(dev && dev->keyboard);
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wlr_keyboard_notify_modifiers(dev->keyboard, mods_depressed, mods_latched,
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mods_locked, 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 *wlr_dev) {
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struct wlr_wl_input_device *dev = (struct wlr_wl_input_device *)wlr_dev;
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if (dev->resource) {
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wl_proxy_destroy(dev->resource);
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}
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wl_list_remove(&dev->wlr_input_device.link);
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free(dev);
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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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bool wlr_input_device_is_wl(struct wlr_input_device *dev) {
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return dev->impl == &input_device_impl;
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}
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static struct wlr_wl_input_device *create_wl_input_device(
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struct wlr_wl_backend *backend, enum wlr_input_device_type type) {
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struct wlr_wl_input_device *dev =
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calloc(1, sizeof(struct wlr_wl_input_device));
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if (dev == NULL) {
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wlr_log_errno(L_ERROR, "Allocation failed");
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return NULL;
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}
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dev->backend = backend;
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struct wlr_input_device *wlr_dev = &dev->wlr_input_device;
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unsigned int vendor = 0, product = 0;
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const char *name = "wayland";
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wlr_input_device_init(wlr_dev, type, &input_device_impl, name, vendor,
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product);
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wl_list_insert(&backend->devices, &wlr_dev->link);
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return dev;
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}
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static struct wlr_pointer_impl pointer_impl;
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struct wlr_wl_pointer *pointer_get_wl(struct wlr_pointer *wlr_pointer) {
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assert(wlr_pointer->impl == &pointer_impl);
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return (struct wlr_wl_pointer *)wlr_pointer;
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}
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static void pointer_destroy(struct wlr_pointer *wlr_pointer) {
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struct wlr_wl_pointer *pointer = pointer_get_wl(wlr_pointer);
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wl_list_remove(&pointer->output_destroy.link);
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free(pointer);
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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 void pointer_handle_output_destroy(struct wl_listener *listener,
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void *data) {
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struct wlr_wl_pointer *pointer =
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wl_container_of(listener, pointer, output_destroy);
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wlr_input_device_destroy(&pointer->input_device->wlr_input_device);
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}
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void create_wl_pointer(struct wl_pointer *wl_pointer,
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struct wlr_wl_output *output) {
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struct wlr_wl_backend *backend = output->backend;
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struct wlr_input_device *wlr_dev;
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wl_list_for_each(wlr_dev, &output->backend->devices, link) {
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if (wlr_dev->type != WLR_INPUT_DEVICE_POINTER) {
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continue;
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}
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struct wlr_wl_pointer *pointer = pointer_get_wl(wlr_dev->pointer);
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if (pointer->output == output) {
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return;
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}
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}
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struct wlr_wl_pointer *pointer = calloc(1, sizeof(struct wlr_wl_pointer));
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if (pointer == NULL) {
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wlr_log(L_ERROR, "Allocation failed");
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return;
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}
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pointer->wl_pointer = wl_pointer;
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pointer->output = output;
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wl_signal_add(&output->wlr_output.events.destroy, &pointer->output_destroy);
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pointer->output_destroy.notify = pointer_handle_output_destroy;
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struct wlr_wl_input_device *dev =
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create_wl_input_device(backend, WLR_INPUT_DEVICE_POINTER);
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if (dev == NULL) {
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free(pointer);
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wlr_log(L_ERROR, "Allocation failed");
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return;
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}
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pointer->input_device = dev;
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wlr_dev = &dev->wlr_input_device;
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wlr_dev->pointer = &pointer->wlr_pointer;
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wlr_dev->output_name = strdup(output->wlr_output.name);
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wlr_pointer_init(wlr_dev->pointer, &pointer_impl);
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wlr_signal_emit_safe(&backend->backend.events.new_input, wlr_dev);
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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 wl_pointer *wl_pointer = wl_seat_get_pointer(wl_seat);
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backend->pointer = wl_pointer;
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struct wlr_wl_output *output;
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wl_list_for_each(output, &backend->outputs, link) {
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create_wl_pointer(wl_pointer, output);
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}
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wl_pointer_add_listener(wl_pointer, &pointer_listener, backend);
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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_wl_input_device *dev = create_wl_input_device(backend,
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WLR_INPUT_DEVICE_KEYBOARD);
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if (dev == NULL) {
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wlr_log(L_ERROR, "Allocation failed");
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return;
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}
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struct wlr_input_device *wlr_dev = &dev->wlr_input_device;
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wlr_dev->keyboard = calloc(1, sizeof(struct wlr_keyboard));
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if (!wlr_dev->keyboard) {
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free(dev);
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wlr_log(L_ERROR, "Allocation failed");
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return;
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}
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wlr_keyboard_init(wlr_dev->keyboard, NULL);
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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_dev);
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dev->resource = wl_keyboard;
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wlr_signal_emit_safe(&backend->backend.events.new_input, wlr_dev);
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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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