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emscripten: send fake mouse events for touches, like other targets do.

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(This really should be handled at the higher level and not in the individual
targets, but this fixes the immediate bug.)
This commit is contained in:
Ryan C. Gordon 2016-08-12 19:59:00 -04:00
parent 3b88f5c690
commit d05ae1941c
2 changed files with 20 additions and 3 deletions
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19
src/video/emscripten/SDL_emscriptenevents.c
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@ -391,11 +391,24 @@ Emscripten_HandleTouch(int eventType, const EmscriptenTouchEvent *touchEvent, vo
x = touchEvent->touches[i].canvasX / (float)window_data->windowed_width;
y = touchEvent->touches[i].canvasY / (float)window_data->windowed_height;
if (eventType == EMSCRIPTEN_EVENT_TOUCHMOVE) {
SDL_SendTouchMotion(deviceId, id, x, y, 1.0f);
} else if (eventType == EMSCRIPTEN_EVENT_TOUCHSTART) {
if (eventType == EMSCRIPTEN_EVENT_TOUCHSTART) {
if (!window_data->finger_touching) {
window_data->finger_touching = SDL_TRUE;
window_data->first_finger = id;
SDL_SendMouseMotion(window_data->window, SDL_TOUCH_MOUSEID, 0, x, y);
SDL_SendMouseButton(window_data->window, SDL_TOUCH_MOUSEID, SDL_PRESSED, SDL_BUTTON_LEFT);
}
SDL_SendTouch(deviceId, id, SDL_TRUE, x, y, 1.0f);
} else if (eventType == EMSCRIPTEN_EVENT_TOUCHMOVE) {
if ((window_data->finger_touching) && (window_data->first_finger == id)) {
SDL_SendMouseMotion(window_data->window, SDL_TOUCH_MOUSEID, 0, x, y);
}
SDL_SendTouchMotion(deviceId, id, x, y, 1.0f);
} else {
if ((window_data->finger_touching) && (window_data->first_finger == id)) {
SDL_SendMouseButton(window_data->window, SDL_TOUCH_MOUSEID, SDL_RELEASED, SDL_BUTTON_LEFT);
window_data->finger_touching = SDL_FALSE;
}
SDL_SendTouch(deviceId, id, SDL_FALSE, x, y, 1.0f);
}
}

4
src/video/emscripten/SDL_emscriptenvideo.h
View file

@ -24,6 +24,7 @@
#define _SDL_emscriptenvideo_h
#include "../SDL_sysvideo.h"
#include "../../events/SDL_touch_c.h"
#include <emscripten/emscripten.h>
#include <emscripten/html5.h>
@ -45,6 +46,9 @@ typedef struct SDL_WindowData
SDL_bool external_size;
int requested_fullscreen_mode;
SDL_bool finger_touching; /* for mapping touch events to mice */
SDL_FingerID first_finger;
} SDL_WindowData;
#endif /* _SDL_emscriptenvideo_h */