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Move event conversion to input_manager

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Only keep helper functions separated.

This will help to convert coordinates internally when necessary.
This commit is contained in:
Romain Vimont 2019-10-20 12:49:47 +02:00
parent 8d601d3210
commit b0db1178d1
3 changed files with 103 additions and 117 deletions
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97
app/src/event_converter.c
View file

@ -5,7 +5,7 @@
#define MAP(FROM, TO) case FROM: *to = TO; return true
#define FAIL default: return false
static bool
bool
convert_keycode_action(SDL_EventType from, enum android_keyevent_action *to) {
switch (from) {
MAP(SDL_KEYDOWN, AKEY_EVENT_ACTION_DOWN);
@ -33,7 +33,7 @@ autocomplete_metastate(enum android_metastate metastate) {
return metastate;
}
static enum android_metastate
enum android_metastate
convert_meta_state(SDL_Keymod mod) {
enum android_metastate metastate = 0;
if (mod & KMOD_LSHIFT) {
@ -74,7 +74,7 @@ convert_meta_state(SDL_Keymod mod) {
return autocomplete_metastate(metastate);
}
static bool
bool
convert_keycode(SDL_Keycode from, enum android_keycode *to, uint16_t mod) {
switch (from) {
MAP(SDLK_RETURN, AKEYCODE_ENTER);
@ -128,7 +128,7 @@ convert_keycode(SDL_Keycode from, enum android_keycode *to, uint16_t mod) {
}
}
static enum android_motionevent_buttons
enum android_motionevent_buttons
convert_mouse_buttons(uint32_t state) {
enum android_motionevent_buttons buttons = 0;
if (state & SDL_BUTTON_LMASK) {
@ -150,24 +150,6 @@ convert_mouse_buttons(uint32_t state) {
}
bool
convert_input_key(const SDL_KeyboardEvent *from, struct control_msg *to) {
to->type = CONTROL_MSG_TYPE_INJECT_KEYCODE;
if (!convert_keycode_action(from->type, &to->inject_keycode.action)) {
return false;
}
uint16_t mod = from->keysym.mod;
if (!convert_keycode(from->keysym.sym, &to->inject_keycode.keycode, mod)) {
return false;
}
to->inject_keycode.metastate = convert_meta_state(mod);
return true;
}
static bool
convert_mouse_action(SDL_EventType from, enum android_motionevent_action *to) {
switch (from) {
MAP(SDL_MOUSEBUTTONDOWN, AMOTION_EVENT_ACTION_DOWN);
@ -177,41 +159,6 @@ convert_mouse_action(SDL_EventType from, enum android_motionevent_action *to) {
}
bool
convert_mouse_button(const SDL_MouseButtonEvent *from, struct size screen_size,
struct control_msg *to) {
to->type = CONTROL_MSG_TYPE_INJECT_TOUCH_EVENT;
if (!convert_mouse_action(from->type, &to->inject_touch_event.action)) {
return false;
}
to->inject_touch_event.pointer_id = POINTER_ID_MOUSE;
to->inject_touch_event.position.screen_size = screen_size;
to->inject_touch_event.position.point.x = from->x;
to->inject_touch_event.position.point.y = from->y;
to->inject_touch_event.pressure = 1.f;
to->inject_touch_event.buttons =
convert_mouse_buttons(SDL_BUTTON(from->button));
return true;
}
bool
convert_mouse_motion(const SDL_MouseMotionEvent *from, struct size screen_size,
struct control_msg *to) {
to->type = CONTROL_MSG_TYPE_INJECT_TOUCH_EVENT;
to->inject_touch_event.action = AMOTION_EVENT_ACTION_MOVE;
to->inject_touch_event.pointer_id = POINTER_ID_MOUSE;
to->inject_touch_event.position.screen_size = screen_size;
to->inject_touch_event.position.point.x = from->x;
to->inject_touch_event.position.point.y = from->y;
to->inject_touch_event.pressure = 1.f;
to->inject_touch_event.buttons = convert_mouse_buttons(from->state);
return true;
}
static bool
convert_touch_action(SDL_EventType from, enum android_motionevent_action *to) {
switch (from) {
MAP(SDL_FINGERMOTION, AMOTION_EVENT_ACTION_MOVE);
@ -220,39 +167,3 @@ convert_touch_action(SDL_EventType from, enum android_motionevent_action *to) {
FAIL;
}
}
bool
convert_touch(const SDL_TouchFingerEvent *from, struct size screen_size,
struct control_msg *to) {
to->type = CONTROL_MSG_TYPE_INJECT_TOUCH_EVENT;
if (!convert_touch_action(from->type, &to->inject_touch_event.action)) {
return false;
}
to->inject_touch_event.pointer_id = from->fingerId;
to->inject_touch_event.position.screen_size = screen_size;
// SDL touch event coordinates are normalized in the range [0; 1]
to->inject_touch_event.position.point.x = from->x * screen_size.width;
to->inject_touch_event.position.point.y = from->y * screen_size.height;
to->inject_touch_event.pressure = from->pressure;
to->inject_touch_event.buttons = 0;
return true;
}
bool
convert_mouse_wheel(const SDL_MouseWheelEvent *from, struct position position,
struct control_msg *to) {
to->type = CONTROL_MSG_TYPE_INJECT_SCROLL_EVENT;
to->inject_scroll_event.position = position;
int mul = from->direction == SDL_MOUSEWHEEL_NORMAL ? 1 : -1;
// SDL behavior seems inconsistent between horizontal and vertical scrolling
// so reverse the horizontal
// <https://wiki.libsdl.org/SDL_MouseWheelEvent#Remarks>
to->inject_scroll_event.hscroll = -mul * from->x;
to->inject_scroll_event.vscroll = mul * from->y;
return true;
}

34
app/src/event_converter.h
View file

@ -7,36 +7,22 @@
#include "config.h"
#include "control_msg.h"
struct complete_mouse_motion_event {
SDL_MouseMotionEvent *mouse_motion_event;
struct size screen_size;
};
bool
convert_keycode_action(SDL_EventType from, enum android_keyevent_action *to);
struct complete_mouse_wheel_event {
SDL_MouseWheelEvent *mouse_wheel_event;
struct point position;
};
enum android_metastate
convert_meta_state(SDL_Keymod mod);
bool
convert_input_key(const SDL_KeyboardEvent *from, struct control_msg *to);
convert_keycode(SDL_Keycode from, enum android_keycode *to, uint16_t mod);
enum android_motionevent_buttons
convert_mouse_buttons(uint32_t state);
bool
convert_mouse_button(const SDL_MouseButtonEvent *from, struct size screen_size,
struct control_msg *to);
// the video size may be different from the real device size, so we need the
// size to which the absolute position apply, to scale it accordingly
bool
convert_mouse_motion(const SDL_MouseMotionEvent *from, struct size screen_size,
struct control_msg *to);
convert_mouse_action(SDL_EventType from, enum android_motionevent_action *to);
bool
convert_touch(const SDL_TouchFingerEvent *from, struct size screen_size,
struct control_msg *to);
// on Android, a scroll event requires the current mouse position
bool
convert_mouse_wheel(const SDL_MouseWheelEvent *from, struct position position,
struct control_msg *to);
convert_touch_action(SDL_EventType from, enum android_motionevent_action *to);
#endif

89
app/src/input_manager.c
View file

@ -233,6 +233,24 @@ input_manager_process_text_input(struct input_manager *im,
}
}
static bool
convert_input_key(const SDL_KeyboardEvent *from, struct control_msg *to) {
to->type = CONTROL_MSG_TYPE_INJECT_KEYCODE;
if (!convert_keycode_action(from->type, &to->inject_keycode.action)) {
return false;
}
uint16_t mod = from->keysym.mod;
if (!convert_keycode(from->keysym.sym, &to->inject_keycode.keycode, mod)) {
return false;
}
to->inject_keycode.metastate = convert_meta_state(mod);
return true;
}
void
input_manager_process_key(struct input_manager *im,
const SDL_KeyboardEvent *event,
@ -382,6 +400,21 @@ input_manager_process_key(struct input_manager *im,
}
}
static bool
convert_mouse_motion(const SDL_MouseMotionEvent *from, struct size screen_size,
struct control_msg *to) {
to->type = CONTROL_MSG_TYPE_INJECT_TOUCH_EVENT;
to->inject_touch_event.action = AMOTION_EVENT_ACTION_MOVE;
to->inject_touch_event.pointer_id = POINTER_ID_MOUSE;
to->inject_touch_event.position.screen_size = screen_size;
to->inject_touch_event.position.point.x = from->x;
to->inject_touch_event.position.point.y = from->y;
to->inject_touch_event.pressure = 1.f;
to->inject_touch_event.buttons = convert_mouse_buttons(from->state);
return true;
}
void
input_manager_process_mouse_motion(struct input_manager *im,
const SDL_MouseMotionEvent *event) {
@ -401,6 +434,25 @@ input_manager_process_mouse_motion(struct input_manager *im,
}
}
static bool
convert_touch(const SDL_TouchFingerEvent *from, struct size screen_size,
struct control_msg *to) {
to->type = CONTROL_MSG_TYPE_INJECT_TOUCH_EVENT;
if (!convert_touch_action(from->type, &to->inject_touch_event.action)) {
return false;
}
to->inject_touch_event.pointer_id = from->fingerId;
to->inject_touch_event.position.screen_size = screen_size;
// SDL touch event coordinates are normalized in the range [0; 1]
to->inject_touch_event.position.point.x = from->x * screen_size.width;
to->inject_touch_event.position.point.y = from->y * screen_size.height;
to->inject_touch_event.pressure = from->pressure;
to->inject_touch_event.buttons = 0;
return true;
}
void
input_manager_process_touch(struct input_manager *im,
const SDL_TouchFingerEvent *event) {
@ -419,6 +471,26 @@ is_outside_device_screen(struct input_manager *im, int x, int y)
y < 0 || y >= im->screen->frame_size.height;
}
static bool
convert_mouse_button(const SDL_MouseButtonEvent *from, struct size screen_size,
struct control_msg *to) {
to->type = CONTROL_MSG_TYPE_INJECT_TOUCH_EVENT;
if (!convert_mouse_action(from->type, &to->inject_touch_event.action)) {
return false;
}
to->inject_touch_event.pointer_id = POINTER_ID_MOUSE;
to->inject_touch_event.position.screen_size = screen_size;
to->inject_touch_event.position.point.x = from->x;
to->inject_touch_event.position.point.y = from->y;
to->inject_touch_event.pressure = 1.f;
to->inject_touch_event.buttons =
convert_mouse_buttons(SDL_BUTTON(from->button));
return true;
}
void
input_manager_process_mouse_button(struct input_manager *im,
const SDL_MouseButtonEvent *event,
@ -460,6 +532,23 @@ input_manager_process_mouse_button(struct input_manager *im,
}
}
static bool
convert_mouse_wheel(const SDL_MouseWheelEvent *from, struct position position,
struct control_msg *to) {
to->type = CONTROL_MSG_TYPE_INJECT_SCROLL_EVENT;
to->inject_scroll_event.position = position;
int mul = from->direction == SDL_MOUSEWHEEL_NORMAL ? 1 : -1;
// SDL behavior seems inconsistent between horizontal and vertical scrolling
// so reverse the horizontal
// <https://wiki.libsdl.org/SDL_MouseWheelEvent#Remarks>
to->inject_scroll_event.hscroll = -mul * from->x;
to->inject_scroll_event.vscroll = mul * from->y;
return true;
}
void
input_manager_process_mouse_wheel(struct input_manager *im,
const SDL_MouseWheelEvent *event) {