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altTab: try to avoid showing the switcher when "flipping"

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Use a longer fade-in time, but with an inout transition, so that the
dialog starts fading in very slowly and then picks up speed after
150ms or so. That way if the user releases Alt+Tab right away, they'll
never actually see the dialog.

https://bugzilla.gnome.org/show_bug.cgi?id=652346
This commit is contained in:
Dan Winship 2011-07-05 17:21:22 -04:00
parent 8db1ff8aef
commit 7596fdb460
1 changed files with 10 additions and 4 deletions
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14
js/ui/altTab.js
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@ -14,7 +14,8 @@ const Tweener = imports.ui.tweener;
const POPUP_APPICON_SIZE = 96;
const POPUP_SCROLL_TIME = 0.10; // seconds
const POPUP_FADE_TIME = 0.1; // seconds
const POPUP_FADE_IN_TIME = 0.4; // seconds
const POPUP_FADE_OUT_TIME = 0.1; // seconds
const APP_ICON_HOVER_TIMEOUT = 200; // milliseconds
@ -182,10 +183,15 @@ AltTabPopup.prototype = {
return false;
}
// Using easeInOutExpo over 400ms gives us 150ms of "nearly
// invisible" (less than 10% opacity), followed by a 100ms
// tween in (to 90% opacity, with the last 10% coming over the
// next 150ms). So if the user releases Alt quickly after we
// start tweening, they'll never see the switcher.
Tweener.addTween(this.actor,
{ opacity: 255,
time: POPUP_FADE_TIME,
transition: 'easeOutQuad'
time: POPUP_FADE_IN_TIME,
transition: 'easeInOutExpo'
});
return true;
@ -368,7 +374,7 @@ AltTabPopup.prototype = {
if (this.actor.visible) {
Tweener.addTween(this.actor,
{ opacity: 0,
time: POPUP_FADE_TIME,
time: POPUP_FADE_OUT_TIME,
transition: 'easeOutQuad',
onComplete: Lang.bind(this,
function() {