scrcpy/app/src/control_msg.h

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C
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#ifndef SC_CONTROLMSG_H
#define SC_CONTROLMSG_H
#include "common.h"
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include "android/input.h"
#include "android/keycodes.h"
#include "coords.h"
#define SC_CONTROL_MSG_MAX_SIZE (1 << 18) // 256k
#define SC_CONTROL_MSG_INJECT_TEXT_MAX_LENGTH 300
// type: 1 byte; sequence: 8 bytes; paste flag: 1 byte; length: 4 bytes
#define SC_CONTROL_MSG_CLIPBOARD_TEXT_MAX_LENGTH (SC_CONTROL_MSG_MAX_SIZE - 14)
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#define POINTER_ID_MOUSE UINT64_C(-1)
#define POINTER_ID_GENERIC_FINGER UINT64_C(-2)
// Used for injecting an additional virtual pointer for pinch-to-zoom
#define POINTER_ID_VIRTUAL_MOUSE UINT64_C(-3)
#define POINTER_ID_VIRTUAL_FINGER UINT64_C(-4)
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enum sc_control_msg_type {
SC_CONTROL_MSG_TYPE_INJECT_KEYCODE,
SC_CONTROL_MSG_TYPE_INJECT_TEXT,
SC_CONTROL_MSG_TYPE_INJECT_TOUCH_EVENT,
SC_CONTROL_MSG_TYPE_INJECT_SCROLL_EVENT,
SC_CONTROL_MSG_TYPE_BACK_OR_SCREEN_ON,
SC_CONTROL_MSG_TYPE_EXPAND_NOTIFICATION_PANEL,
SC_CONTROL_MSG_TYPE_EXPAND_SETTINGS_PANEL,
SC_CONTROL_MSG_TYPE_COLLAPSE_PANELS,
SC_CONTROL_MSG_TYPE_GET_CLIPBOARD,
SC_CONTROL_MSG_TYPE_SET_CLIPBOARD,
SC_CONTROL_MSG_TYPE_SET_SCREEN_POWER_MODE,
SC_CONTROL_MSG_TYPE_ROTATE_DEVICE,
};
enum sc_screen_power_mode {
// see <https://android.googlesource.com/platform/frameworks/base.git/+/pie-release-2/core/java/android/view/SurfaceControl.java#305>
SC_SCREEN_POWER_MODE_OFF = 0,
SC_SCREEN_POWER_MODE_NORMAL = 2,
};
enum sc_copy_key {
SC_COPY_KEY_NONE,
SC_COPY_KEY_COPY,
SC_COPY_KEY_CUT,
};
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struct sc_control_msg {
enum sc_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 free()
} inject_text;
struct {
enum android_motionevent_action action;
enum android_motionevent_buttons buttons;
uint64_t pointer_id;
struct sc_position position;
float pressure;
} inject_touch_event;
struct {
struct sc_position position;
float hscroll;
float vscroll;
enum android_motionevent_buttons buttons;
} inject_scroll_event;
struct {
enum android_keyevent_action action; // action for the BACK key
// screen may only be turned on on ACTION_DOWN
} back_or_screen_on;
struct {
enum sc_copy_key copy_key;
} get_clipboard;
struct {
uint64_t sequence;
char *text; // owned, to be freed by free()
bool paste;
} set_clipboard;
struct {
enum sc_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
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sc_control_msg_serialize(const struct sc_control_msg *msg, unsigned char *buf);
void
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sc_control_msg_log(const struct sc_control_msg *msg);
void
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sc_control_msg_destroy(struct sc_control_msg *msg);
#endif