wlroots/include/rootston/input.h

#ifndef _ROOTSTON_INPUT_H
#define _ROOTSTON_INPUT_H
#include <xkbcommon/xkbcommon.h>
#include <wayland-server.h>
#include <wlr/types/wlr_input_device.h>
#include <wlr/types/wlr_cursor.h>
#include <wlr/types/wlr_seat.h>
#include <wlr/xcursor.h>
#include "rootston/config.h"
#include "rootston/view.h"
#include "rootston/server.h"

struct roots_keyboard {
	struct roots_input *input;
	struct wlr_input_device *device;
	struct wl_listener key;
	struct wl_list link;
	struct xkb_keymap *keymap;
	struct xkb_state *xkb_state;
	xkb_led_index_t leds[WLR_LED_LAST];
	int keymap_fd;
	size_t keymap_size;
};

struct roots_pointer {
	struct roots_input *input;
	struct wlr_input_device *device;
	struct wl_listener motion;
	struct wl_listener motion_absolute;
	struct wl_listener button;
	struct wl_listener axis;
	struct wl_list link;
};

struct roots_touch {
	struct roots_input *input;
	struct wlr_input_device *device;
	struct wl_listener down;
	struct wl_listener up;
	struct wl_listener motion;
	struct wl_listener cancel;
	struct wl_list link;
};

// TODO: tablet pad
struct roots_tablet_tool {
	struct roots_input *input;
	struct wlr_input_device *device;
	struct wl_listener axis;
	struct wl_listener proximity;
	struct wl_listener tip;
	struct wl_listener button;
	struct wl_list link;
};

enum roots_cursor_mode {
	ROOTS_CURSOR_PASSTHROUGH = 0,
	ROOTS_CURSOR_MOVE = 1,
	ROOTS_CURSOR_RESIZE = 2,
	ROOTS_CURSOR_ROTATE = 3,
};

struct roots_input_event {
	uint32_t serial;
	struct wlr_cursor *cursor;
	struct wlr_input_device *device;
};

struct roots_input {
	struct roots_config *config;

	// TODO: multiseat, multicursor
	struct wlr_cursor *cursor;
	struct wlr_xcursor *xcursor;
	struct wlr_seat *wl_seat;

	enum roots_cursor_mode mode;
	struct roots_view *active_view;
	int offs_x, offs_y;

	// Ring buffer of input events that could trigger move/resize/rotate
	int input_events_idx;
	struct roots_input_event input_events[16];

	struct wl_list keyboards;
	struct wl_list pointers;
	struct wl_list touch;
	struct wl_list tablet_tools;

	struct wl_listener input_add;
	struct wl_listener input_remove;
};

struct roots_input *input_create(struct roots_server *server,
		struct roots_config *config);
void input_destroy(struct roots_input *input);

void pointer_add(struct wlr_input_device *device, struct roots_input *input);

#endif