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Prevent the default browser behavior of events (#1576)

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This stops things like page scrolling on spacebar / arrow keys
This commit is contained in:
Ryan G 2020-05-21 13:13:33 -04:00 • committed by GitHub
parent 49bcec1d27
commit 6cfddfea21
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GPG key ID: 4AEE18F83AFDEB23
3 changed files with 10 additions and 3 deletions
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3
src/platform_impl/web/web_sys/canvas.rs
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@ -135,6 +135,7 @@ impl Canvas {
{
self.on_keyboard_release =
Some(self.add_user_event("keyup", move |event: KeyboardEvent| {
event.prevent_default();
handler(
event::scan_code(&event),
event::virtual_key_code(&event),
@ -149,6 +150,7 @@ impl Canvas {
{
self.on_keyboard_press =
Some(self.add_user_event("keydown", move |event: KeyboardEvent| {
event.prevent_default();
handler(
event::scan_code(&event),
event::virtual_key_code(&event),
@ -242,6 +244,7 @@ impl Canvas {
F: 'static + FnMut(i32, MouseScrollDelta, ModifiersState),
{
self.on_mouse_wheel = Some(self.add_event("wheel", move |event: WheelEvent| {
event.prevent_default();
if let Some(delta) = event::mouse_scroll_delta(&event) {
handler(0, delta, event::mouse_modifiers(&event));
}