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scrcpy/app/src/input_manager.c
Romain Vimont 104195fc3b Add shortcut to reset video capture/encoding 
Reset video capture/encoding on MOD+Shift+r.

Like on device rotation, this starts a new encoding session which
produces a video stream starting by a key frame.

PR #5432 <https://github.com/Genymobile/scrcpy/pull/5432>
2024-11-03 19:31:02 +01:00

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#include "input_manager.h"
#include <assert.h>
#include <SDL2/SDL_keycode.h>
#include "input_events.h"
#include "screen.h"
#include "shortcut_mod.h"
#include "util/log.h"
void
sc_input_manager_init(struct sc_input_manager *im,
const struct sc_input_manager_params *params) {
// A key/mouse processor may not be present if there is no controller
assert((!params->kp && !params->mp && !params->gp) || params->controller);
// A processor must have ops initialized
assert(!params->kp || params->kp->ops);
assert(!params->mp || params->mp->ops);
assert(!params->gp || params->gp->ops);
im->controller = params->controller;
im->fp = params->fp;
im->screen = params->screen;
im->kp = params->kp;
im->mp = params->mp;
im->gp = params->gp;
im->mouse_bindings = params->mouse_bindings;
im->legacy_paste = params->legacy_paste;
im->clipboard_autosync = params->clipboard_autosync;
im->sdl_shortcut_mods = sc_shortcut_mods_to_sdl(params->shortcut_mods);
im->vfinger_down = false;
im->vfinger_invert_x = false;
im->vfinger_invert_y = false;
im->mouse_buttons_state = 0;
im->last_keycode = SDLK_UNKNOWN;
im->last_mod = 0;
im->key_repeat = 0;
im->next_sequence = 1; // 0 is reserved for SC_SEQUENCE_INVALID
}
static void
send_keycode(struct sc_input_manager *im, enum android_keycode keycode,
enum sc_action action, const char *name) {
assert(im->controller && im->kp);
// send DOWN event
struct sc_control_msg msg;
msg.type = SC_CONTROL_MSG_TYPE_INJECT_KEYCODE;
msg.inject_keycode.action = action == SC_ACTION_DOWN
? AKEY_EVENT_ACTION_DOWN
: AKEY_EVENT_ACTION_UP;
msg.inject_keycode.keycode = keycode;
msg.inject_keycode.metastate = 0;
msg.inject_keycode.repeat = 0;
if (!sc_controller_push_msg(im->controller, &msg)) {
LOGW("Could not request 'inject %s'", name);
}
}
static inline void
action_home(struct sc_input_manager *im, enum sc_action action) {
send_keycode(im, AKEYCODE_HOME, action, "HOME");
}
static inline void
action_back(struct sc_input_manager *im, enum sc_action action) {
send_keycode(im, AKEYCODE_BACK, action, "BACK");
}
static inline void
action_app_switch(struct sc_input_manager *im, enum sc_action action) {
send_keycode(im, AKEYCODE_APP_SWITCH, action, "APP_SWITCH");
}
static inline void
action_power(struct sc_input_manager *im, enum sc_action action) {
send_keycode(im, AKEYCODE_POWER, action, "POWER");
}
static inline void
action_volume_up(struct sc_input_manager *im, enum sc_action action) {
send_keycode(im, AKEYCODE_VOLUME_UP, action, "VOLUME_UP");
}
static inline void
action_volume_down(struct sc_input_manager *im, enum sc_action action) {
send_keycode(im, AKEYCODE_VOLUME_DOWN, action, "VOLUME_DOWN");
}
static inline void
action_menu(struct sc_input_manager *im, enum sc_action action) {
send_keycode(im, AKEYCODE_MENU, action, "MENU");
}
// turn the screen on if it was off, press BACK otherwise
// If the screen is off, it is turned on only on ACTION_DOWN
static void
press_back_or_turn_screen_on(struct sc_input_manager *im,
enum sc_action action) {
assert(im->controller && im->kp);
struct sc_control_msg msg;
msg.type = SC_CONTROL_MSG_TYPE_BACK_OR_SCREEN_ON;
msg.back_or_screen_on.action = action == SC_ACTION_DOWN
? AKEY_EVENT_ACTION_DOWN
: AKEY_EVENT_ACTION_UP;
if (!sc_controller_push_msg(im->controller, &msg)) {
LOGW("Could not request 'press back or turn screen on'");
}
}
static void
expand_notification_panel(struct sc_input_manager *im) {
assert(im->controller);
struct sc_control_msg msg;
msg.type = SC_CONTROL_MSG_TYPE_EXPAND_NOTIFICATION_PANEL;
if (!sc_controller_push_msg(im->controller, &msg)) {
LOGW("Could not request 'expand notification panel'");
}
}
static void
expand_settings_panel(struct sc_input_manager *im) {
assert(im->controller);
struct sc_control_msg msg;
msg.type = SC_CONTROL_MSG_TYPE_EXPAND_SETTINGS_PANEL;
if (!sc_controller_push_msg(im->controller, &msg)) {
LOGW("Could not request 'expand settings panel'");
}
}
static void
collapse_panels(struct sc_input_manager *im) {
assert(im->controller);
struct sc_control_msg msg;
msg.type = SC_CONTROL_MSG_TYPE_COLLAPSE_PANELS;
if (!sc_controller_push_msg(im->controller, &msg)) {
LOGW("Could not request 'collapse notification panel'");
}
}
static bool
get_device_clipboard(struct sc_input_manager *im, enum sc_copy_key copy_key) {
assert(im->controller && im->kp);
struct sc_control_msg msg;
msg.type = SC_CONTROL_MSG_TYPE_GET_CLIPBOARD;
msg.get_clipboard.copy_key = copy_key;
if (!sc_controller_push_msg(im->controller, &msg)) {
LOGW("Could not request 'get device clipboard'");
return false;
}
return true;
}
static bool
set_device_clipboard(struct sc_input_manager *im, bool paste,
uint64_t sequence) {
assert(im->controller && im->kp);
char *text = SDL_GetClipboardText();
if (!text) {
LOGW("Could not get clipboard text: %s", SDL_GetError());
return false;
}
char *text_dup = strdup(text);
SDL_free(text);
if (!text_dup) {
LOGW("Could not strdup input text");
return false;
}
struct sc_control_msg msg;
msg.type = SC_CONTROL_MSG_TYPE_SET_CLIPBOARD;
msg.set_clipboard.sequence = sequence;
msg.set_clipboard.text = text_dup;
msg.set_clipboard.paste = paste;
if (!sc_controller_push_msg(im->controller, &msg)) {
free(text_dup);
LOGW("Could not request 'set device clipboard'");
return false;
}
return true;
}
static void
set_display_power(struct sc_input_manager *im, bool on) {
assert(im->controller);
struct sc_control_msg msg;
msg.type = SC_CONTROL_MSG_TYPE_SET_DISPLAY_POWER;
msg.set_display_power.on = on;
if (!sc_controller_push_msg(im->controller, &msg)) {
LOGW("Could not request 'set screen power mode'");
}
}
static void
switch_fps_counter_state(struct sc_input_manager *im) {
struct sc_fps_counter *fps_counter = &im->screen->fps_counter;
// the started state can only be written from the current thread, so there
// is no ToCToU issue
if (sc_fps_counter_is_started(fps_counter)) {
sc_fps_counter_stop(fps_counter);
} else {
sc_fps_counter_start(fps_counter);
// Any error is already logged
}
}
static void
clipboard_paste(struct sc_input_manager *im) {
assert(im->controller && im->kp);
char *text = SDL_GetClipboardText();
if (!text) {
LOGW("Could not get clipboard text: %s", SDL_GetError());
return;
}
if (!*text) {
// empty text
SDL_free(text);
return;
}
char *text_dup = strdup(text);
SDL_free(text);
if (!text_dup) {
LOGW("Could not strdup input text");
return;
}
struct sc_control_msg msg;
msg.type = SC_CONTROL_MSG_TYPE_INJECT_TEXT;
msg.inject_text.text = text_dup;
if (!sc_controller_push_msg(im->controller, &msg)) {
free(text_dup);
LOGW("Could not request 'paste clipboard'");
}
}
static void
rotate_device(struct sc_input_manager *im) {
assert(im->controller);
struct sc_control_msg msg;
msg.type = SC_CONTROL_MSG_TYPE_ROTATE_DEVICE;
if (!sc_controller_push_msg(im->controller, &msg)) {
LOGW("Could not request device rotation");
}
}
static void
open_hard_keyboard_settings(struct sc_input_manager *im) {
assert(im->controller);
struct sc_control_msg msg;
msg.type = SC_CONTROL_MSG_TYPE_OPEN_HARD_KEYBOARD_SETTINGS;
if (!sc_controller_push_msg(im->controller, &msg)) {
LOGW("Could not request opening hard keyboard settings");
}
}
static void
reset_video(struct sc_input_manager *im) {
assert(im->controller);
struct sc_control_msg msg;
msg.type = SC_CONTROL_MSG_TYPE_RESET_VIDEO;
if (!sc_controller_push_msg(im->controller, &msg)) {
LOGW("Could not request reset video");
}
}
static void
apply_orientation_transform(struct sc_input_manager *im,
enum sc_orientation transform) {
struct sc_screen *screen = im->screen;
enum sc_orientation new_orientation =
sc_orientation_apply(screen->orientation, transform);
sc_screen_set_orientation(screen, new_orientation);
}
static void
sc_input_manager_process_text_input(struct sc_input_manager *im,
const SDL_TextInputEvent *event) {
if (!im->kp->ops->process_text) {
// The key processor does not support text input
return;
}
if (sc_shortcut_mods_is_shortcut_mod(im->sdl_shortcut_mods,
SDL_GetModState())) {
// A shortcut must never generate text events
return;
}
struct sc_text_event evt = {
.text = event->text,
};
im->kp->ops->process_text(im->kp, &evt);
}
static bool
simulate_virtual_finger(struct sc_input_manager *im,
enum android_motionevent_action action,
struct sc_point point) {
bool up = action == AMOTION_EVENT_ACTION_UP;
struct sc_control_msg msg;
msg.type = SC_CONTROL_MSG_TYPE_INJECT_TOUCH_EVENT;
msg.inject_touch_event.action = action;
msg.inject_touch_event.position.screen_size = im->screen->frame_size;
msg.inject_touch_event.position.point = point;
msg.inject_touch_event.pointer_id = SC_POINTER_ID_VIRTUAL_FINGER;
msg.inject_touch_event.pressure = up ? 0.0f : 1.0f;
msg.inject_touch_event.action_button = 0;
msg.inject_touch_event.buttons = 0;
if (!sc_controller_push_msg(im->controller, &msg)) {
LOGW("Could not request 'inject virtual finger event'");
return false;
}
return true;
}
static struct sc_point
inverse_point(struct sc_point point, struct sc_size size,
bool invert_x, bool invert_y) {
if (invert_x) {
point.x = size.width - point.x;
}
if (invert_y) {
point.y = size.height - point.y;
}
return point;
}
static void
sc_input_manager_process_key(struct sc_input_manager *im,
const SDL_KeyboardEvent *event) {
// controller is NULL if --no-control is requested
bool control = im->controller;
bool paused = im->screen->paused;
bool video = im->screen->video;
SDL_Keycode sdl_keycode = event->keysym.sym;
uint16_t mod = event->keysym.mod;
bool down = event->type == SDL_KEYDOWN;
bool ctrl = event->keysym.mod & KMOD_CTRL;
bool shift = event->keysym.mod & KMOD_SHIFT;
bool repeat = event->repeat;
// Either the modifier includes a shortcut modifier, or the key
// press/release is a modifier key.
// The second condition is necessary to ignore the release of the modifier
// key (because in this case mod is 0).
uint16_t mods = im->sdl_shortcut_mods;
bool is_shortcut = sc_shortcut_mods_is_shortcut_mod(mods, mod)
|| sc_shortcut_mods_is_shortcut_key(mods, sdl_keycode);
if (down && !repeat) {
if (sdl_keycode == im->last_keycode && mod == im->last_mod) {
++im->key_repeat;
} else {
im->key_repeat = 0;
im->last_keycode = sdl_keycode;
im->last_mod = mod;
}
}
if (is_shortcut) {
enum sc_action action = down ? SC_ACTION_DOWN : SC_ACTION_UP;
switch (sdl_keycode) {
case SDLK_h:
if (im->kp && !shift && !repeat && !paused) {
action_home(im, action);
}
return;
case SDLK_b: // fall-through
case SDLK_BACKSPACE:
if (im->kp && !shift && !repeat && !paused) {
action_back(im, action);
}
return;
case SDLK_s:
if (im->kp && !shift && !repeat && !paused) {
action_app_switch(im, action);
}
return;
case SDLK_m:
if (im->kp && !shift && !repeat && !paused) {
action_menu(im, action);
}
return;
case SDLK_p:
if (im->kp && !shift && !repeat && !paused) {
action_power(im, action);
}
return;
case SDLK_o:
if (control && !repeat && down && !paused) {
bool on = shift;
set_display_power(im, on);
}
return;
case SDLK_z:
if (video && down && !repeat) {
sc_screen_set_paused(im->screen, !shift);
}
return;
case SDLK_DOWN:
if (shift) {
if (video && !repeat && down) {
apply_orientation_transform(im,
SC_ORIENTATION_FLIP_180);
}
} else if (im->kp && !paused) {
// forward repeated events
action_volume_down(im, action);
}
return;
case SDLK_UP:
if (shift) {
if (video && !repeat && down) {
apply_orientation_transform(im,
SC_ORIENTATION_FLIP_180);
}
} else if (im->kp && !paused) {
// forward repeated events
action_volume_up(im, action);
}
return;
case SDLK_LEFT:
if (video && !repeat && down) {
if (shift) {
apply_orientation_transform(im,
SC_ORIENTATION_FLIP_0);
} else {
apply_orientation_transform(im,
SC_ORIENTATION_270);
}
}
return;
case SDLK_RIGHT:
if (video && !repeat && down) {
if (shift) {
apply_orientation_transform(im,
SC_ORIENTATION_FLIP_0);
} else {
apply_orientation_transform(im,
SC_ORIENTATION_90);
}
}
return;
case SDLK_c:
if (im->kp && !shift && !repeat && down && !paused) {
get_device_clipboard(im, SC_COPY_KEY_COPY);
}
return;
case SDLK_x:
if (im->kp && !shift && !repeat && down && !paused) {
get_device_clipboard(im, SC_COPY_KEY_CUT);
}
return;
case SDLK_v:
if (im->kp && !repeat && down && !paused) {
if (shift || im->legacy_paste) {
// inject the text as input events
clipboard_paste(im);
} else {
// store the text in the device clipboard and paste,
// without requesting an acknowledgment
set_device_clipboard(im, true, SC_SEQUENCE_INVALID);
}
}
return;
case SDLK_f:
if (video && !shift && !repeat && down) {
sc_screen_toggle_fullscreen(im->screen);
}
return;
case SDLK_w:
if (video && !shift && !repeat && down) {
sc_screen_resize_to_fit(im->screen);
}
return;
case SDLK_g:
if (video && !shift && !repeat && down) {
sc_screen_resize_to_pixel_perfect(im->screen);
}
return;
case SDLK_i:
if (video && !shift && !repeat && down) {
switch_fps_counter_state(im);
}
return;
case SDLK_n:
if (control && !repeat && down && !paused) {
if (shift) {
collapse_panels(im);
} else if (im->key_repeat == 0) {
expand_notification_panel(im);
} else {
expand_settings_panel(im);
}
}
return;
case SDLK_r:
if (control && !repeat && down && !paused) {
if (shift) {
reset_video(im);
} else {
rotate_device(im);
}
}
return;
case SDLK_k:
if (control && !shift && !repeat && down && !paused
&& im->kp && im->kp->hid) {
// Only if the current keyboard is hid
open_hard_keyboard_settings(im);
}
return;
}
return;
}
if (!im->kp || paused) {
return;
}
uint64_t ack_to_wait = SC_SEQUENCE_INVALID;
bool is_ctrl_v = ctrl && !shift && sdl_keycode == SDLK_v && down && !repeat;
if (im->clipboard_autosync && is_ctrl_v) {
if (im->legacy_paste) {
// inject the text as input events
clipboard_paste(im);
return;
}
// Request an acknowledgement only if necessary
uint64_t sequence = im->kp->async_paste ? im->next_sequence
: SC_SEQUENCE_INVALID;
// Synchronize the computer clipboard to the device clipboard before
// sending Ctrl+v, to allow seamless copy-paste.
bool ok = set_device_clipboard(im, false, sequence);
if (!ok) {
LOGW("Clipboard could not be synchronized, Ctrl+v not injected");
return;
}
if (im->kp->async_paste) {
// The key processor must wait for this ack before injecting Ctrl+v
ack_to_wait = sequence;
// Increment only when the request succeeded
++im->next_sequence;
}
}
enum sc_keycode keycode = sc_keycode_from_sdl(sdl_keycode);
if (keycode == SC_KEYCODE_UNKNOWN) {
return;
}
enum sc_scancode scancode = sc_scancode_from_sdl(event->keysym.scancode);
if (scancode == SC_SCANCODE_UNKNOWN) {
return;
}
struct sc_key_event evt = {
.action = sc_action_from_sdl_keyboard_type(event->type),
.keycode = keycode,
.scancode = scancode,
.repeat = event->repeat,
.mods_state = sc_mods_state_from_sdl(event->keysym.mod),
};
assert(im->kp->ops->process_key);
im->kp->ops->process_key(im->kp, &evt, ack_to_wait);
}
static struct sc_position
sc_input_manager_get_position(struct sc_input_manager *im, int32_t x,
int32_t y) {
if (im->mp->relative_mode) {
// No absolute position
return (struct sc_position) {
.screen_size = {0, 0},
.point = {0, 0},
};
}
return (struct sc_position) {
.screen_size = im->screen->frame_size,
.point = sc_screen_convert_window_to_frame_coords(im->screen, x, y),
};
}
static void
sc_input_manager_process_mouse_motion(struct sc_input_manager *im,
const SDL_MouseMotionEvent *event) {
if (event->which == SDL_TOUCH_MOUSEID) {
// simulated from touch events, so it's a duplicate
return;
}
struct sc_mouse_motion_event evt = {
.position = sc_input_manager_get_position(im, event->x, event->y),
.pointer_id = im->vfinger_down ? SC_POINTER_ID_GENERIC_FINGER
: SC_POINTER_ID_MOUSE,
.xrel = event->xrel,
.yrel = event->yrel,
.buttons_state = im->mouse_buttons_state,
};
assert(im->mp->ops->process_mouse_motion);
im->mp->ops->process_mouse_motion(im->mp, &evt);
// vfinger must never be used in relative mode
assert(!im->mp->relative_mode || !im->vfinger_down);
if (im->vfinger_down) {
assert(!im->mp->relative_mode); // assert one more time
struct sc_point mouse =
sc_screen_convert_window_to_frame_coords(im->screen, event->x,
event->y);
struct sc_point vfinger = inverse_point(mouse, im->screen->frame_size,
im->vfinger_invert_x,
im->vfinger_invert_y);
simulate_virtual_finger(im, AMOTION_EVENT_ACTION_MOVE, vfinger);
}
}
static void
sc_input_manager_process_touch(struct sc_input_manager *im,
const SDL_TouchFingerEvent *event) {
if (!im->mp->ops->process_touch) {
// The mouse processor does not support touch events
return;
}
int dw;
int dh;
SDL_GL_GetDrawableSize(im->screen->window, &dw, &dh);
// SDL touch event coordinates are normalized in the range [0; 1]
int32_t x = event->x * dw;
int32_t y = event->y * dh;
struct sc_touch_event evt = {
.position = {
.screen_size = im->screen->frame_size,
.point =
sc_screen_convert_drawable_to_frame_coords(im->screen, x, y),
},
.action = sc_touch_action_from_sdl(event->type),
.pointer_id = event->fingerId,
.pressure = event->pressure,
};
im->mp->ops->process_touch(im->mp, &evt);
}
static enum sc_mouse_binding
sc_input_manager_get_binding(const struct sc_mouse_binding_set *bindings,
uint8_t sdl_button) {
switch (sdl_button) {
case SDL_BUTTON_LEFT:
return SC_MOUSE_BINDING_CLICK;
case SDL_BUTTON_RIGHT:
return bindings->right_click;
case SDL_BUTTON_MIDDLE:
return bindings->middle_click;
case SDL_BUTTON_X1:
return bindings->click4;
case SDL_BUTTON_X2:
return bindings->click5;
default:
return SC_MOUSE_BINDING_DISABLED;
}
}
static void
sc_input_manager_process_mouse_button(struct sc_input_manager *im,
const SDL_MouseButtonEvent *event) {
if (event->which == SDL_TOUCH_MOUSEID) {
// simulated from touch events, so it's a duplicate
return;
}
bool control = im->controller;
bool paused = im->screen->paused;
bool down = event->type == SDL_MOUSEBUTTONDOWN;
enum sc_mouse_button button = sc_mouse_button_from_sdl(event->button);
if (button == SC_MOUSE_BUTTON_UNKNOWN) {
return;
}
if (!down) {
// Mark the button as released
im->mouse_buttons_state &= ~button;
}
SDL_Keymod keymod = SDL_GetModState();
bool ctrl_pressed = keymod & KMOD_CTRL;
bool shift_pressed = keymod & KMOD_SHIFT;
if (control && !paused) {
enum sc_action action = down ? SC_ACTION_DOWN : SC_ACTION_UP;
struct sc_mouse_binding_set *bindings = !shift_pressed
? &im->mouse_bindings.pri
: &im->mouse_bindings.sec;
enum sc_mouse_binding binding =
sc_input_manager_get_binding(bindings, event->button);
assert(binding != SC_MOUSE_BINDING_AUTO);
switch (binding) {
case SC_MOUSE_BINDING_DISABLED:
// ignore click
return;
case SC_MOUSE_BINDING_BACK:
if (im->kp) {
press_back_or_turn_screen_on(im, action);
}
return;
case SC_MOUSE_BINDING_HOME:
if (im->kp) {
action_home(im, action);
}
return;
case SC_MOUSE_BINDING_APP_SWITCH:
if (im->kp) {
action_app_switch(im, action);
}
return;
case SC_MOUSE_BINDING_EXPAND_NOTIFICATION_PANEL:
if (down) {
if (event->clicks < 2) {
expand_notification_panel(im);
} else {
expand_settings_panel(im);
}
}
return;
default:
assert(binding == SC_MOUSE_BINDING_CLICK);
break;
}
}
// double-click on black borders resizes to fit the device screen
bool video = im->screen->video;
bool mouse_relative_mode = im->mp && im->mp->relative_mode;
if (video && !mouse_relative_mode && event->button == SDL_BUTTON_LEFT
&& event->clicks == 2) {
int32_t x = event->x;
int32_t y = event->y;
sc_screen_hidpi_scale_coords(im->screen, &x, &y);
SDL_Rect *r = &im->screen->rect;
bool outside = x < r->x || x >= r->x + r->w
|| y < r->y || y >= r->y + r->h;
if (outside) {
if (down) {
sc_screen_resize_to_fit(im->screen);
}
return;
}
}
if (!im->mp || paused) {
return;
}
if (down) {
// Mark the button as pressed
im->mouse_buttons_state |= button;
}
bool change_vfinger = event->button == SDL_BUTTON_LEFT &&
((down && !im->vfinger_down && (ctrl_pressed || shift_pressed)) ||
(!down && im->vfinger_down));
bool use_finger = im->vfinger_down || change_vfinger;
struct sc_mouse_click_event evt = {
.position = sc_input_manager_get_position(im, event->x, event->y),
.action = sc_action_from_sdl_mousebutton_type(event->type),
.button = button,
.pointer_id = use_finger ? SC_POINTER_ID_GENERIC_FINGER
: SC_POINTER_ID_MOUSE,
.buttons_state = im->mouse_buttons_state,
};
assert(im->mp->ops->process_mouse_click);
im->mp->ops->process_mouse_click(im->mp, &evt);
if (im->mp->relative_mode) {
assert(!im->vfinger_down); // vfinger must not be used in relative mode
// No pinch-to-zoom simulation
return;
}
// Pinch-to-zoom, rotate and tilt simulation.
//
// If Ctrl is hold when the left-click button is pressed, then
// pinch-to-zoom mode is enabled: on every mouse event until the left-click
// button is released, an additional "virtual finger" event is generated,
// having a position inverted through the center of the screen.
//
// In other words, the center of the rotation/scaling is the center of the
// screen.
//
// To simulate a vertical tilt gesture (a vertical slide with two fingers),
// Shift can be used instead of Ctrl. The "virtual finger" has a position
// inverted with respect to the vertical axis of symmetry in the middle of
// the screen.
//
// To simulate a horizontal tilt gesture (a horizontal slide with two
// fingers), Ctrl+Shift can be used. The "virtual finger" has a position
// inverted with respect to the horizontal axis of symmetry in the middle
// of the screen. It is expected to be less frequently used, that's why the
// one-mod shortcuts are assigned to rotation and vertical tilt.
if (change_vfinger) {
struct sc_point mouse =
sc_screen_convert_window_to_frame_coords(im->screen, event->x,
event->y);
if (down) {
// Ctrl Shift invert_x invert_y
// ---- ----- ==> -------- --------
// 0 0 0 0 -
// 0 1 1 0 vertical tilt
// 1 0 1 1 rotate
// 1 1 0 1 horizontal tilt
im->vfinger_invert_x = ctrl_pressed ^ shift_pressed;
im->vfinger_invert_y = ctrl_pressed;
}
struct sc_point vfinger = inverse_point(mouse, im->screen->frame_size,
im->vfinger_invert_x,
im->vfinger_invert_y);
enum android_motionevent_action action = down
? AMOTION_EVENT_ACTION_DOWN
: AMOTION_EVENT_ACTION_UP;
if (!simulate_virtual_finger(im, action, vfinger)) {
return;
}
im->vfinger_down = down;
}
}
static void
sc_input_manager_process_mouse_wheel(struct sc_input_manager *im,
const SDL_MouseWheelEvent *event) {
if (!im->mp->ops->process_mouse_scroll) {
// The mouse processor does not support scroll events
return;
}
// mouse_x and mouse_y are expressed in pixels relative to the window
int mouse_x;
int mouse_y;
uint32_t buttons = SDL_GetMouseState(&mouse_x, &mouse_y);
(void) buttons; // Actual buttons are tracked manually to ignore shortcuts
struct sc_mouse_scroll_event evt = {
.position = sc_input_manager_get_position(im, mouse_x, mouse_y),
#if SDL_VERSION_ATLEAST(2, 0, 18)
.hscroll = CLAMP(event->preciseX, -1.0f, 1.0f),
.vscroll = CLAMP(event->preciseY, -1.0f, 1.0f),
#else
.hscroll = CLAMP(event->x, -1, 1),
.vscroll = CLAMP(event->y, -1, 1),
#endif
.buttons_state = im->mouse_buttons_state,
};
im->mp->ops->process_mouse_scroll(im->mp, &evt);
}
static void
sc_input_manager_process_gamepad_device(struct sc_input_manager *im,
const SDL_ControllerDeviceEvent *event) {
SDL_JoystickID id;
if (event->type == SDL_CONTROLLERDEVICEADDED) {
SDL_GameController *gc = SDL_GameControllerOpen(event->which);
if (!gc) {
LOGW("Could not open game controller");
return;
}
SDL_Joystick *joystick = SDL_GameControllerGetJoystick(gc);
if (!joystick) {
LOGW("Could not get controller joystick");
SDL_GameControllerClose(gc);
return;
}
id = SDL_JoystickInstanceID(joystick);
} else if (event->type == SDL_CONTROLLERDEVICEREMOVED) {
id = event->which;
SDL_GameController *gc = SDL_GameControllerFromInstanceID(id);
if (gc) {
SDL_GameControllerClose(gc);
} else {
LOGW("Unknown gamepad device removed");
}
} else {
// Nothing to do
return;
}
struct sc_gamepad_device_event evt = {
.type = sc_gamepad_device_event_type_from_sdl_type(event->type),
.gamepad_id = id,
};
im->gp->ops->process_gamepad_device(im->gp, &evt);
}
static void
sc_input_manager_process_gamepad_axis(struct sc_input_manager *im,
const SDL_ControllerAxisEvent *event) {
enum sc_gamepad_axis axis = sc_gamepad_axis_from_sdl(event->axis);
if (axis == SC_GAMEPAD_AXIS_UNKNOWN) {
return;
}
struct sc_gamepad_axis_event evt = {
.gamepad_id = event->which,
.axis = axis,
.value = event->value,
};
im->gp->ops->process_gamepad_axis(im->gp, &evt);
}
static void
sc_input_manager_process_gamepad_button(struct sc_input_manager *im,
const SDL_ControllerButtonEvent *event) {
enum sc_gamepad_button button = sc_gamepad_button_from_sdl(event->button);
if (button == SC_GAMEPAD_BUTTON_UNKNOWN) {
return;
}
struct sc_gamepad_button_event evt = {
.gamepad_id = event->which,
.action = sc_action_from_sdl_controllerbutton_type(event->type),
.button = button,
};
im->gp->ops->process_gamepad_button(im->gp, &evt);
}
static bool
is_apk(const char *file) {
const char *ext = strrchr(file, '.');
return ext && !strcmp(ext, ".apk");
}
static void
sc_input_manager_process_file(struct sc_input_manager *im,
const SDL_DropEvent *event) {
char *file = strdup(event->file);
SDL_free(event->file);
if (!file) {
LOG_OOM();
return;
}
enum sc_file_pusher_action action;
if (is_apk(file)) {
action = SC_FILE_PUSHER_ACTION_INSTALL_APK;
} else {
action = SC_FILE_PUSHER_ACTION_PUSH_FILE;
}
bool ok = sc_file_pusher_request(im->fp, action, file);
if (!ok) {
free(file);
}
}
void
sc_input_manager_handle_event(struct sc_input_manager *im,
const SDL_Event *event) {
bool control = im->controller;
bool paused = im->screen->paused;
switch (event->type) {
case SDL_TEXTINPUT:
if (!im->kp || paused) {
break;
}
sc_input_manager_process_text_input(im, &event->text);
break;
case SDL_KEYDOWN:
case SDL_KEYUP:
// some key events do not interact with the device, so process the
// event even if control is disabled
sc_input_manager_process_key(im, &event->key);
break;
case SDL_MOUSEMOTION:
if (!im->mp || paused) {
break;
}
sc_input_manager_process_mouse_motion(im, &event->motion);
break;
case SDL_MOUSEWHEEL:
if (!im->mp || paused) {
break;
}
sc_input_manager_process_mouse_wheel(im, &event->wheel);
break;
case SDL_MOUSEBUTTONDOWN:
case SDL_MOUSEBUTTONUP:
// some mouse events do not interact with the device, so process
// the event even if control is disabled
sc_input_manager_process_mouse_button(im, &event->button);
break;
case SDL_FINGERMOTION:
case SDL_FINGERDOWN:
case SDL_FINGERUP:
if (!im->mp || paused) {
break;
}
sc_input_manager_process_touch(im, &event->tfinger);
break;
case SDL_CONTROLLERDEVICEADDED:
case SDL_CONTROLLERDEVICEREMOVED:
// Handle device added or removed even if paused
if (!im->gp) {
break;
}
sc_input_manager_process_gamepad_device(im, &event->cdevice);
break;
case SDL_CONTROLLERAXISMOTION:
if (!im->gp || paused) {
break;
}
sc_input_manager_process_gamepad_axis(im, &event->caxis);
break;
case SDL_CONTROLLERBUTTONDOWN:
case SDL_CONTROLLERBUTTONUP:
if (!im->gp || paused) {
break;
}
sc_input_manager_process_gamepad_button(im, &event->cbutton);
break;
case SDL_DROPFILE: {
if (!control) {
break;
}
sc_input_manager_process_file(im, &event->drop);
}
}
}
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