297 lines
9.8 KiB
C
297 lines
9.8 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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struct wlr_wl_input_device *wlr_wl_dev = (struct wlr_wl_input_device *)dev;
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assert(dev && dev->pointer);
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struct wlr_wl_pointer *wlr_wl_pointer = (struct wlr_wl_pointer *)dev->pointer;
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struct wlr_wl_backend_output *output =
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wlr_wl_output_for_surface(wlr_wl_dev->backend, surface);
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if (!output) {
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// GNOME sends a pointer enter when the surface is being destroyed
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return;
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}
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wlr_wl_pointer->current_output = output;
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output->enter_serial = serial;
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wlr_wl_output_update_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_input_device *dev = data;
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assert(dev && dev->pointer);
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struct wlr_wl_pointer *wlr_wl_pointer = (struct wlr_wl_pointer *)dev->pointer;
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if (wlr_wl_pointer->current_output) {
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wlr_wl_pointer->current_output->enter_serial = 0;
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wlr_wl_pointer->current_output = NULL;
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}
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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);
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struct wlr_wl_pointer *wlr_wl_pointer =
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(struct wlr_wl_pointer *)dev->pointer;
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if (!wlr_wl_pointer->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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struct wlr_output *wlr_output = &wlr_wl_pointer->current_output->wlr_output;
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struct wlr_box box;
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wl_egl_window_get_attached_size(wlr_wl_pointer->current_output->egl_window,
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&box.width, &box.height);
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box.x = wl_fixed_to_int(surface_x);
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box.y = wl_fixed_to_int(surface_y);
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struct wlr_box transformed;
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wlr_box_transform(&box, wlr_output->transform, &transformed);
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transformed.x /= wlr_output->scale;
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transformed.y /= wlr_output->scale;
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struct wlr_box layout_box;
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wlr_wl_output_layout_get_box(wlr_wl_pointer->current_output->backend,
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&layout_box);
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struct wlr_event_pointer_motion_absolute wlr_event;
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wlr_event.device = dev;
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wlr_event.time_msec = time;
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wlr_event.width_mm = layout_box.width;
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wlr_event.height_mm = layout_box.height;
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wlr_event.x_mm = transformed.x + wlr_output->lx - layout_box.x;
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wlr_event.y_mm = transformed.y + wlr_output->ly - layout_box.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.device = dev;
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wlr_event.button = button;
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wlr_event.state = state;
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wlr_event.time_msec = time;
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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_wl_pointer *wlr_wl_pointer = (struct wlr_wl_pointer *)dev->pointer;
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struct wlr_event_pointer_axis wlr_event;
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wlr_event.device = dev;
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wlr_event.delta = wl_fixed_to_double(value);
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wlr_event.orientation = axis;
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wlr_event.time_msec = time;
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wlr_event.source = wlr_wl_pointer->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);
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struct wlr_wl_pointer *wlr_wl_pointer = (struct wlr_wl_pointer *)dev->pointer;
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wlr_wl_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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wlr_event.keycode = key;
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wlr_event.state = state;
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wlr_event.time_msec = time;
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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 *_dev) {
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struct wlr_wl_input_device *dev = (struct wlr_wl_input_device *)_dev;
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wl_signal_emit(&dev->backend->backend.events.input_remove, &dev->wlr_input_device);
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if (dev->resource) {
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wl_proxy_destroy(dev->resource);
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}
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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_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_wl_input_device *wlr_wl_dev;
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if (!(wlr_wl_dev = calloc(1, sizeof(struct wlr_wl_input_device)))) {
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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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wlr_wl_dev->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_wl_dev->wlr_input_device;
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wlr_input_device_init(wlr_device, type, &input_device_impl,
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name, vendor, product);
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wl_list_insert(&backend->devices, &wlr_device->link);
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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_wl_pointer *wlr_wl_pointer;
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if (!(wlr_wl_pointer = calloc(1, sizeof(struct wlr_wl_pointer)))) {
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wlr_log(L_ERROR, "Unable to allocate wlr_wl_pointer");
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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(wlr_wl_pointer);
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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 wlr_wl_input_device *wlr_wl_device =
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(struct wlr_wl_input_device *)wlr_device;
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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_wl_pointer->wlr_pointer;
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wlr_pointer_init(wlr_device->pointer, NULL);
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wlr_wl_device->resource = wl_pointer;
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wl_signal_emit(&backend->backend.events.input_add, wlr_device);
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backend->pointer = wl_pointer;
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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_keyboard device");
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return;
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}
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wlr_device->keyboard = calloc(1, sizeof(struct wlr_keyboard));
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if (!wlr_device->keyboard) {
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free(wlr_device);
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wlr_log(L_ERROR, "Unable to allocate wlr keyboard");
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return;
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}
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wlr_keyboard_init(wlr_device->keyboard, NULL);
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struct wlr_wl_input_device *wlr_wl_device =
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(struct wlr_wl_input_device *)wlr_device;
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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_wl_device->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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