mirror of
https://gitlab.freedesktop.org/wlroots/wlroots.git
synced 2024-11-25 16:42:26 +00:00
2285e36b0c
This allows wlroots based compositors to properly use graphic tablets with the wayland backend. This should be a decent quality of life improvement when working on tablet related features.
572 lines
17 KiB
C
572 lines
17 KiB
C
#define _POSIX_C_SOURCE 200809L
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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 <time.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 "pointer-gestures-unstable-v1-client-protocol.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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assert(output);
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struct wlr_wl_pointer *pointer = output_get_pointer(output);
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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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assert(output);
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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_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 = wl_fixed_to_double(sx) / wlr_output->width,
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.y = wl_fixed_to_double(sy) / wlr_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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.delta_discrete = pointer->axis_discrete,
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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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pointer->axis_discrete = 0;
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}
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static void pointer_handle_frame(void *data, struct wl_pointer *wl_pointer) {
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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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wlr_signal_emit_safe(&pointer->wlr_pointer.events.frame,
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&pointer->wlr_pointer);
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}
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static void pointer_handle_axis_source(void *data,
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struct wl_pointer *wl_pointer, 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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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 = 0,
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.delta_discrete = 0,
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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_axis_discrete(void *data,
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struct wl_pointer *wl_pointer, uint32_t axis, int32_t discrete) {
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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_discrete = 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 uint32_t get_current_time_msec(void) {
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struct timespec now;
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clock_gettime(CLOCK_MONOTONIC, &now);
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return now.tv_nsec / 1000;
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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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struct wlr_input_device *dev = data;
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uint32_t time = get_current_time_msec();
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uint32_t *keycode_ptr;
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wl_array_for_each(keycode_ptr, keys) {
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struct wlr_event_keyboard_key event = {
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.keycode = *keycode_ptr,
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.state = WLR_KEY_PRESSED,
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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, &event);
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}
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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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struct wlr_input_device *dev = data;
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uint32_t time = get_current_time_msec();
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uint32_t pressed[dev->keyboard->num_keycodes + 1];
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memcpy(pressed, dev->keyboard->keycodes,
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dev->keyboard->num_keycodes * sizeof(uint32_t));
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for (size_t i = 0; i < sizeof(pressed)/sizeof(pressed[0]); ++i) {
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uint32_t keycode = pressed[i];
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struct wlr_event_keyboard_key event = {
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.keycode = keycode,
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.state = WLR_KEY_RELEASED,
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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, &event);
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}
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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,
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struct wl_keyboard *wl_keyboard, int32_t rate, int32_t delay) {
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// This space is intentionally left blank
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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 struct wlr_wl_input_device *get_wl_input_device_from_input_device(
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struct wlr_input_device *wlr_dev) {
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assert(wlr_input_device_is_wl(wlr_dev));
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return (struct wlr_wl_input_device *)wlr_dev;
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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 =
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get_wl_input_device_from_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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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(WLR_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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if (pointer->output->backend->current_pointer == pointer) {
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pointer->output->backend->current_pointer = NULL;
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}
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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 gesture_swipe_begin(void *data,
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struct zwp_pointer_gesture_swipe_v1 *zwp_pointer_gesture_swipe_v1,
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uint32_t serial, uint32_t time,
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struct wl_surface *surface, uint32_t fingers) {
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struct wlr_wl_input_device *input_device = (struct wlr_wl_input_device *)data;
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struct wlr_input_device *wlr_dev = &input_device->wlr_input_device;
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struct wlr_event_pointer_swipe_begin wlr_event = {
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.device = wlr_dev,
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.time_msec = time,
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.fingers = fingers,
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};
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input_device->fingers = fingers;
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wlr_signal_emit_safe(&wlr_dev->pointer->events.swipe_begin, &wlr_event);
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}
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static void gesture_swipe_update(void *data,
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struct zwp_pointer_gesture_swipe_v1 *zwp_pointer_gesture_swipe_v1,
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uint32_t time, wl_fixed_t dx, wl_fixed_t dy) {
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struct wlr_wl_input_device *input_device = (struct wlr_wl_input_device *)data;
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struct wlr_input_device *wlr_dev = &input_device->wlr_input_device;
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struct wlr_event_pointer_swipe_update wlr_event = {
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.device = wlr_dev,
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.time_msec = time,
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.fingers = input_device->fingers,
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.dx = wl_fixed_to_double(dx),
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.dy = wl_fixed_to_double(dy),
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};
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wlr_signal_emit_safe(&wlr_dev->pointer->events.swipe_update, &wlr_event);
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}
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static void gesture_swipe_end(void *data,
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struct zwp_pointer_gesture_swipe_v1 *zwp_pointer_gesture_swipe_v1,
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uint32_t serial, uint32_t time, int32_t cancelled) {
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struct wlr_wl_input_device *input_device = (struct wlr_wl_input_device *)data;
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struct wlr_input_device *wlr_dev = &input_device->wlr_input_device;
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struct wlr_event_pointer_swipe_end wlr_event = {
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.device = wlr_dev,
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.time_msec = time,
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.cancelled = cancelled,
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};
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wlr_signal_emit_safe(&wlr_dev->pointer->events.swipe_end, &wlr_event);
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}
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static struct zwp_pointer_gesture_swipe_v1_listener gesture_swipe_impl = {
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.begin = gesture_swipe_begin,
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.update = gesture_swipe_update,
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.end = gesture_swipe_end,
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};
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static void gesture_pinch_begin(void *data,
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struct zwp_pointer_gesture_pinch_v1 *zwp_pointer_gesture_pinch_v1,
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uint32_t serial, uint32_t time,
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struct wl_surface *surface, uint32_t fingers) {
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struct wlr_wl_input_device *input_device = (struct wlr_wl_input_device *)data;
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struct wlr_input_device *wlr_dev = &input_device->wlr_input_device;
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struct wlr_event_pointer_pinch_begin wlr_event = {
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.device = wlr_dev,
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.time_msec = time,
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.fingers = fingers,
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};
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input_device->fingers = fingers;
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wlr_signal_emit_safe(&wlr_dev->pointer->events.pinch_begin, &wlr_event);
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}
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static void gesture_pinch_update(void *data,
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struct zwp_pointer_gesture_pinch_v1 *zwp_pointer_gesture_pinch_v1,
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uint32_t time, wl_fixed_t dx, wl_fixed_t dy, wl_fixed_t scale, wl_fixed_t rotation) {
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struct wlr_wl_input_device *input_device = (struct wlr_wl_input_device *)data;
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struct wlr_input_device *wlr_dev = &input_device->wlr_input_device;
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struct wlr_event_pointer_pinch_update wlr_event = {
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.device = wlr_dev,
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.time_msec = time,
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.fingers = input_device->fingers,
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.dx = wl_fixed_to_double(dx),
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.dy = wl_fixed_to_double(dy),
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.scale = wl_fixed_to_double(scale),
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.rotation = wl_fixed_to_double(rotation),
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};
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wlr_signal_emit_safe(&wlr_dev->pointer->events.pinch_update, &wlr_event);
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}
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static void gesture_pinch_end(void *data,
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struct zwp_pointer_gesture_pinch_v1 *zwp_pointer_gesture_pinch_v1,
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uint32_t serial, uint32_t time, int32_t cancelled) {
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struct wlr_wl_input_device *input_device = (struct wlr_wl_input_device *)data;
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struct wlr_input_device *wlr_dev = &input_device->wlr_input_device;
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struct wlr_event_pointer_pinch_end wlr_event = {
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.device = wlr_dev,
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.time_msec = time,
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.cancelled = cancelled,
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};
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wlr_signal_emit_safe(&wlr_dev->pointer->events.pinch_end, &wlr_event);
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}
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static struct zwp_pointer_gesture_pinch_v1_listener gesture_pinch_impl = {
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.begin = gesture_pinch_begin,
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.update = gesture_pinch_update,
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.end = gesture_pinch_end,
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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);
|
|
}
|
|
|
|
void create_wl_pointer(struct wl_pointer *wl_pointer, struct wlr_wl_output *output) {
|
|
struct wlr_wl_backend *backend = output->backend;
|
|
|
|
struct wlr_input_device *wlr_dev;
|
|
wl_list_for_each(wlr_dev, &output->backend->devices, link) {
|
|
if (wlr_dev->type != WLR_INPUT_DEVICE_POINTER) {
|
|
continue;
|
|
}
|
|
struct wlr_wl_pointer *pointer = pointer_get_wl(wlr_dev->pointer);
|
|
if (pointer->output == output) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
struct wlr_wl_pointer *pointer = calloc(1, sizeof(struct wlr_wl_pointer));
|
|
if (pointer == NULL) {
|
|
wlr_log(WLR_ERROR, "Allocation failed");
|
|
return;
|
|
}
|
|
pointer->wl_pointer = wl_pointer;
|
|
pointer->output = output;
|
|
|
|
wl_signal_add(&output->wlr_output.events.destroy, &pointer->output_destroy);
|
|
pointer->output_destroy.notify = pointer_handle_output_destroy;
|
|
|
|
struct wlr_wl_input_device *dev =
|
|
create_wl_input_device(backend, WLR_INPUT_DEVICE_POINTER);
|
|
if (dev == NULL) {
|
|
free(pointer);
|
|
wlr_log(WLR_ERROR, "Allocation failed");
|
|
return;
|
|
}
|
|
pointer->input_device = dev;
|
|
|
|
wlr_dev = &dev->wlr_input_device;
|
|
wlr_dev->pointer = &pointer->wlr_pointer;
|
|
wlr_dev->output_name = strdup(output->wlr_output.name);
|
|
wlr_pointer_init(wlr_dev->pointer, &pointer_impl);
|
|
|
|
if (backend->zwp_pointer_gestures_v1) {
|
|
pointer->gesture_swipe = zwp_pointer_gestures_v1_get_swipe_gesture(
|
|
backend->zwp_pointer_gestures_v1, wl_pointer);
|
|
zwp_pointer_gesture_swipe_v1_add_listener(pointer->gesture_swipe, &gesture_swipe_impl, dev);
|
|
pointer->gesture_pinch = zwp_pointer_gestures_v1_get_pinch_gesture(
|
|
backend->zwp_pointer_gestures_v1, wl_pointer);
|
|
zwp_pointer_gesture_pinch_v1_add_listener(pointer->gesture_pinch, &gesture_pinch_impl, dev);
|
|
}
|
|
|
|
wlr_signal_emit_safe(&backend->backend.events.new_input, wlr_dev);
|
|
}
|
|
|
|
void create_wl_keyboard(struct wl_keyboard *wl_keyboard, struct wlr_wl_backend *wl) {
|
|
struct wlr_wl_input_device *dev =
|
|
create_wl_input_device(wl, WLR_INPUT_DEVICE_KEYBOARD);
|
|
if (!dev) {
|
|
return;
|
|
}
|
|
|
|
struct wlr_input_device *wlr_dev = &dev->wlr_input_device;
|
|
|
|
wlr_dev->keyboard = calloc(1, sizeof(*wlr_dev->keyboard));
|
|
if (!wlr_dev->keyboard) {
|
|
wlr_log_errno(WLR_ERROR, "Allocation failed");
|
|
free(dev);
|
|
return;
|
|
}
|
|
wlr_keyboard_init(wlr_dev->keyboard, NULL);
|
|
|
|
wl_keyboard_add_listener(wl_keyboard, &keyboard_listener, wlr_dev);
|
|
dev->resource = wl_keyboard;
|
|
wlr_signal_emit_safe(&wl->backend.events.new_input, wlr_dev);
|
|
}
|
|
|
|
static void seat_handle_capabilities(void *data, struct wl_seat *wl_seat,
|
|
enum wl_seat_capability caps) {
|
|
struct wlr_wl_backend *backend = data;
|
|
assert(backend->seat == wl_seat);
|
|
|
|
if ((caps & WL_SEAT_CAPABILITY_POINTER)) {
|
|
wlr_log(WLR_DEBUG, "seat %p offered pointer", (void*) wl_seat);
|
|
|
|
struct wl_pointer *wl_pointer = wl_seat_get_pointer(wl_seat);
|
|
backend->pointer = wl_pointer;
|
|
|
|
struct wlr_wl_output *output;
|
|
wl_list_for_each(output, &backend->outputs, link) {
|
|
create_wl_pointer(wl_pointer, output);
|
|
}
|
|
|
|
wl_pointer_add_listener(wl_pointer, &pointer_listener, backend);
|
|
}
|
|
if ((caps & WL_SEAT_CAPABILITY_KEYBOARD)) {
|
|
wlr_log(WLR_DEBUG, "seat %p offered keyboard", (void*) wl_seat);
|
|
|
|
struct wl_keyboard *wl_keyboard = wl_seat_get_keyboard(wl_seat);
|
|
backend->keyboard = wl_keyboard;
|
|
|
|
if (backend->started) {
|
|
create_wl_keyboard(wl_keyboard, backend);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void seat_handle_name(void *data, struct wl_seat *wl_seat,
|
|
const char *name) {
|
|
struct wlr_wl_backend *backend = data;
|
|
assert(backend->seat == wl_seat);
|
|
// Do we need to check if seatName was previously set for name change?
|
|
free(backend->seat_name);
|
|
backend->seat_name = strdup(name);
|
|
}
|
|
|
|
const struct wl_seat_listener seat_listener = {
|
|
.capabilities = seat_handle_capabilities,
|
|
.name = seat_handle_name,
|
|
};
|