scrcpy/app/src/control_msg.h

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#ifndef CONTROLMSG_H
#define CONTROLMSG_H
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include "config.h"
#include "android/input.h"
#include "android/keycodes.h"
#include "common.h"
#define CONTROL_MSG_MAX_SIZE (1 << 18) // 256k
#define CONTROL_MSG_INJECT_TEXT_MAX_LENGTH 300
// type: 1 byte; paste flag: 1 byte; length: 4 bytes
#define CONTROL_MSG_CLIPBOARD_TEXT_MAX_LENGTH (CONTROL_MSG_MAX_SIZE - 6)
#define POINTER_ID_MOUSE UINT64_C(-1);
#define POINTER_ID_VIRTUAL_FINGER UINT64_C(-2);
enum control_msg_type {
CONTROL_MSG_TYPE_INJECT_KEYCODE,
CONTROL_MSG_TYPE_INJECT_TEXT,
CONTROL_MSG_TYPE_INJECT_TOUCH_EVENT,
CONTROL_MSG_TYPE_INJECT_SCROLL_EVENT,
CONTROL_MSG_TYPE_BACK_OR_SCREEN_ON,
CONTROL_MSG_TYPE_EXPAND_NOTIFICATION_PANEL,
CONTROL_MSG_TYPE_COLLAPSE_NOTIFICATION_PANEL,
CONTROL_MSG_TYPE_GET_CLIPBOARD,
CONTROL_MSG_TYPE_SET_CLIPBOARD,
CONTROL_MSG_TYPE_SET_SCREEN_POWER_MODE,
CONTROL_MSG_TYPE_ROTATE_DEVICE,
};
enum screen_power_mode {
// see <https://android.googlesource.com/platform/frameworks/base.git/+/pie-release-2/core/java/android/view/SurfaceControl.java#305>
SCREEN_POWER_MODE_OFF = 0,
SCREEN_POWER_MODE_NORMAL = 2,
};
struct control_msg {
enum control_msg_type type;
union {
struct {
enum android_keyevent_action action;
enum android_keycode keycode;
uint32_t repeat;
enum android_metastate metastate;
} inject_keycode;
struct {
char *text; // owned, to be freed by SDL_free()
} inject_text;
struct {
enum android_motionevent_action action;
enum android_motionevent_buttons buttons;
uint64_t pointer_id;
struct position position;
float pressure;
} inject_touch_event;
struct {
struct position position;
int32_t hscroll;
int32_t vscroll;
} inject_scroll_event;
struct {
char *text; // owned, to be freed by SDL_free()
bool paste;
} set_clipboard;
struct {
enum screen_power_mode mode;
} set_screen_power_mode;
};
};
// buf size must be at least CONTROL_MSG_MAX_SIZE
// return the number of bytes written
size_t
control_msg_serialize(const struct control_msg *msg, unsigned char *buf);
void
control_msg_destroy(struct control_msg *msg);
#endif