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js: Cancel UI events when the mid end says they've been handled

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This means that if a key doesn't do anything in a puzzle, it can operate
the browser instead.
This commit is contained in:
Ben Harris
2022-11-05 17:15:52 +00:00
parent 4a37f7cf78
commit c5a2446fae
2 changed files with 27 additions and 14 deletions
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26
emcc.c
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@ -246,28 +246,37 @@ static void update_undo_redo(void)
/*
* Mouse event handlers called from JS.
*/
void mousedown(int x, int y, int button)
bool mousedown(int x, int y, int button)
{
bool handled;
button = (button == 0 ? LEFT_BUTTON :
button == 1 ? MIDDLE_BUTTON : RIGHT_BUTTON);
midend_process_key(me, x, y, button, NULL);
midend_process_key(me, x, y, button, &handled);
update_undo_redo();
return handled;
}
void mouseup(int x, int y, int button)
bool mouseup(int x, int y, int button)
{
bool handled;
button = (button == 0 ? LEFT_RELEASE :
button == 1 ? MIDDLE_RELEASE : RIGHT_RELEASE);
midend_process_key(me, x, y, button, NULL);
midend_process_key(me, x, y, button, &handled);
update_undo_redo();
return handled;
}
void mousemove(int x, int y, int buttons)
bool mousemove(int x, int y, int buttons)
{
int button = (buttons & 2 ? MIDDLE_DRAG :
buttons & 4 ? RIGHT_DRAG : LEFT_DRAG);
midend_process_key(me, x, y, button, NULL);
bool handled;
midend_process_key(me, x, y, button, &handled);
update_undo_redo();
return handled;
}
/*
@ -283,6 +292,7 @@ bool key(int keycode, const char *key, const char *chr, int location,
#define DOM_KEY_LOCATION_RIGHT 2
#define DOM_KEY_LOCATION_NUMPAD 3
int keyevent = -1;
bool handled;
if (!strnullcmp(key, "Backspace") || !strnullcmp(key, "Delete") ||
!strnullcmp(key, "Del"))
@ -379,9 +389,9 @@ bool key(int keycode, const char *key, const char *chr, int location,
location == DOM_KEY_LOCATION_NUMPAD)
keyevent |= MOD_NUM_KEYPAD;
midend_process_key(me, 0, 0, keyevent, NULL);
midend_process_key(me, 0, 0, keyevent, &handled);
update_undo_redo();
return true; /* We've probably handled the event. */
return handled;
}
return false; /* Event not handled, because we don't even recognise it. */
}