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Add some comments on mouse handler(input service)

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Signed-off-by: fufesou <shuanglongchen@yeah.net>
This commit is contained in:
fufesou 2022-11-14 18:39:49 +08:00
parent 47d7e7ad93
commit e6698f32d7
1 changed files with 6 additions and 3 deletions
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9
src/server/input_service.rs
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@ -408,7 +408,7 @@ fn active_mouse_(conn: i32) -> bool {
let in_actived_dist = |a: i32, b: i32| -> bool { (a - b).abs() < MOUSE_ACTIVE_DISTANCE };
// check if input is in valid range
// Check if input is in valid range
match crate::get_cursor_pos() {
Some((x, y)) => {
let (last_in_x, last_in_y) = {
@ -417,10 +417,13 @@ fn active_mouse_(conn: i32) -> bool {
};
let mut can_active =
in_actived_dist(last_in_x, x) && in_actived_dist(last_in_y, y);
// The cursor may not have been moved to last input position if system is busy now.
// While this is not a common case, we check it again after some time later.
if !can_active {
// Try agin
// No need to care about sleep here. It's not a common case.
// 10 micros may be enough for system to move cursor.
// We do not care about the situation which system is too slow(more than 10 micros is required).
std::thread::sleep(std::time::Duration::from_micros(10));
// Sleep here can also somehow suppress delay accumulation.
if let Some((x2, y2)) = crate::get_cursor_pos() {
can_active =
in_actived_dist(last_in_x, x2) && in_actived_dist(last_in_y, y2);