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emscripten: Fixed compiling on C89 compilers.

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This commit is contained in:
Philipp Wiesemann
2017-05-26 22:45:40 +02:00
parent b84fe2c06b
commit 759319729c
2 changed files with 20 additions and 11 deletions
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24
src/video/emscripten/SDL_emscriptenevents.c
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@@ -490,6 +490,8 @@ static EM_BOOL
Emscripten_HandleKey(int eventType, const EmscriptenKeyboardEvent *keyEvent, void *userData)
{
Uint32 scancode;
SDL_bool prevent_default;
SDL_bool is_nav_key;
/* .keyCode is deprecated, but still the most reliable way to get keys */
if (keyEvent->keyCode < SDL_arraysize(emscripten_scancode_table)) {
@@ -517,17 +519,17 @@ Emscripten_HandleKey(int eventType, const EmscriptenKeyboardEvent *keyEvent, voi
}
}
SDL_bool prevent_default = SDL_GetEventState(eventType == EMSCRIPTEN_EVENT_KEYDOWN ? SDL_KEYDOWN : SDL_KEYUP) == SDL_ENABLE;
prevent_default = SDL_GetEventState(eventType == EMSCRIPTEN_EVENT_KEYDOWN ? SDL_KEYDOWN : SDL_KEYUP) == SDL_ENABLE;
/* if TEXTINPUT events are enabled we can't prevent keydown or we won't get keypress
* we need to ALWAYS prevent backspace and tab otherwise chrome takes action and does bad navigation UX
*/
SDL_bool is_nav_key = keyEvent->keyCode == 8 /* backspace */ ||
keyEvent->keyCode == 9 /* tab */ ||
keyEvent->keyCode == 37 /* left */ ||
keyEvent->keyCode == 38 /* up */ ||
keyEvent->keyCode == 39 /* right */ ||
keyEvent->keyCode == 40 /* down */;
is_nav_key = keyEvent->keyCode == 8 /* backspace */ ||
keyEvent->keyCode == 9 /* tab */ ||
keyEvent->keyCode == 37 /* left */ ||
keyEvent->keyCode == 38 /* up */ ||
keyEvent->keyCode == 39 /* right */ ||
keyEvent->keyCode == 40 /* down */;
if (eventType == EMSCRIPTEN_EVENT_KEYDOWN && SDL_GetEventState(SDL_TEXTINPUT) == SDL_ENABLE && !is_nav_key)
prevent_default = SDL_FALSE;
@@ -629,6 +631,8 @@ Emscripten_HandleVisibilityChange(int eventType, const EmscriptenVisibilityChang
void
Emscripten_RegisterEventHandlers(SDL_WindowData *data)
{
const char *keyElement;
/* There is only one window and that window is the canvas */
emscripten_set_mousemove_callback("#canvas", data, 0, Emscripten_HandleMouseMove);
@@ -651,7 +655,7 @@ Emscripten_RegisterEventHandlers(SDL_WindowData *data)
emscripten_set_pointerlockchange_callback(NULL, data, 0, Emscripten_HandlePointerLockChange);
/* Keyboard events are awkward */
const char *keyElement = SDL_GetHint(SDL_HINT_EMSCRIPTEN_KEYBOARD_ELEMENT);
keyElement = SDL_GetHint(SDL_HINT_EMSCRIPTEN_KEYBOARD_ELEMENT);
if (!keyElement) keyElement = "#window";
emscripten_set_keydown_callback(keyElement, data, 0, Emscripten_HandleKey);
@@ -668,6 +672,8 @@ Emscripten_RegisterEventHandlers(SDL_WindowData *data)
void
Emscripten_UnregisterEventHandlers(SDL_WindowData *data)
{
const char *target;
/* only works due to having one window */
emscripten_set_mousemove_callback("#canvas", NULL, 0, NULL);
@@ -689,7 +695,7 @@ Emscripten_UnregisterEventHandlers(SDL_WindowData *data)
emscripten_set_pointerlockchange_callback(NULL, NULL, 0, NULL);
const char *target = SDL_GetHint(SDL_HINT_EMSCRIPTEN_KEYBOARD_ELEMENT);
target = SDL_GetHint(SDL_HINT_EMSCRIPTEN_KEYBOARD_ELEMENT);
if (!target) {
target = "#window";
}