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[HTML5] Fix wheel/touch callback modifying event after parse.

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The events should be duplicated or reinstantiated without
assuming that parse_input will consume them immediately.
This commit is contained in:
Fabio Alessandrelli 2021-09-15 16:57:09 +02:00
parent 29eefc466e
commit 7dfbc4e57c
1 changed files with 6 additions and 5 deletions
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11
platform/javascript/os_javascript.cpp
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@ -616,9 +616,10 @@ EM_BOOL OS_JavaScript::wheel_callback(int p_event_type, const EmscriptenWheelEve
ev->set_button_mask(input->get_mouse_button_mask() | button_flag);
input->parse_input_event(ev);
ev->set_pressed(false);
ev->set_button_mask(input->get_mouse_button_mask() & ~button_flag);
input->parse_input_event(ev);
Ref<InputEventMouseButton> release = ev->duplicate();
release->set_pressed(false);
release->set_button_mask(input->get_mouse_button_mask() & ~button_flag);
input->parse_input_event(release);
return true;
}
@ -632,7 +633,6 @@ bool OS_JavaScript::has_touchscreen_ui_hint() const {
EM_BOOL OS_JavaScript::touch_press_callback(int p_event_type, const EmscriptenTouchEvent *p_event, void *p_user_data) {
OS_JavaScript *os = get_singleton();
Ref<InputEventScreenTouch> ev;
ev.instance();
int lowest_id_index = -1;
for (int i = 0; i < p_event->numTouches; ++i) {
const EmscriptenTouchPoint &touch = p_event->touches[i];
@ -640,6 +640,7 @@ EM_BOOL OS_JavaScript::touch_press_callback(int p_event_type, const EmscriptenTo
lowest_id_index = i;
if (!touch.isChanged)
continue;
ev.instance();
ev->set_index(touch.identifier);
ev->set_position(compute_position_in_canvas(touch.clientX, touch.clientY));
os->touches[i] = ev->get_position();
@ -659,7 +660,6 @@ EM_BOOL OS_JavaScript::touch_press_callback(int p_event_type, const EmscriptenTo
EM_BOOL OS_JavaScript::touchmove_callback(int p_event_type, const EmscriptenTouchEvent *p_event, void *p_user_data) {
OS_JavaScript *os = get_singleton();
Ref<InputEventScreenDrag> ev;
ev.instance();
int lowest_id_index = -1;
for (int i = 0; i < p_event->numTouches; ++i) {
const EmscriptenTouchPoint &touch = p_event->touches[i];
@ -667,6 +667,7 @@ EM_BOOL OS_JavaScript::touchmove_callback(int p_event_type, const EmscriptenTouc
lowest_id_index = i;
if (!touch.isChanged)
continue;
ev.instance();
ev->set_index(touch.identifier);
ev->set_position(compute_position_in_canvas(touch.clientX, touch.clientY));
Point2 &prev = os->touches[i];