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util: Add wiggle helper

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Add Util.wiggle(), which accepts the wiggle offset, duration,
and number of times, as parameters.

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/768
This commit is contained in:
Georges Basile Stavracas Neto 2019-10-17 12:26:04 +02:00 committed by Florian Müllner
parent f2466caef3
commit d0690c3952
1 changed files with 35 additions and 1 deletions
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36
js/misc/util.js
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@ -1,7 +1,7 @@
// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
/* exported findUrls, spawn, spawnCommandLine, spawnApp, trySpawnCommandLine,
formatTime, formatTimeSpan, createTimeLabel, insertSorted,
makeCloseButton, ensureActorVisibleInScrollView */
makeCloseButton, ensureActorVisibleInScrollView, wiggle */
const { Clutter, Gio, GLib, GObject, Shell, St } = imports.gi;
const Gettext = imports.gettext;
@ -429,3 +429,37 @@ function ensureActorVisibleInScrollView(scrollView, actor) {
duration: SCROLL_TIME
});
}
function wiggle(actor, params) {
params = Params.parse(params, {
offset: 0,
duration: 0,
wiggleCount: 0,
});
actor.translation_x = 0;
// Accelerate before wiggling
actor.ease({
translation_x: -params.offset,
duration: params.duration,
mode: Clutter.AnimationMode.EASE_OUT_QUAD,
onComplete: () => {
// Wiggle
actor.ease({
translation_x: params.offset,
duration: params.duration,
mode: Clutter.AnimationMode.LINEAR,
repeatCount: params.wiggleCount,
autoReverse: true,
onComplete: () => {
// Decelerate and return to the original position
actor.ease({
translation_x: 0,
duration: params.duration,
mode: Clutter.AnimationMode.EASE_IN_QUAD,
});
}
});
}
});
}