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AbstractBubble: add reveal animation #296

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AbstractBubble: add reveal animation #296

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38 changes: 38 additions & 0 deletions src/AbstractBubble.vala
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Original file line number Diff line number Diff line change
Expand Up @@ -37,6 +37,8 @@ public class Notifications.AbstractBubble : Gtk.Window {

protected Gtk.Stack content_area;

private Adw.TimedAnimation fade;
private Adw.TimedAnimation reveal;
private static Settings? transparency_settings;

private Gtk.Revealer close_revealer;
Expand Down Expand Up @@ -128,6 +130,35 @@ public class Notifications.AbstractBubble : Gtk.Window {

transparency_settings.changed["use-transparency"].connect (update_transparency);
update_transparency ();

fade = new Adw.TimedAnimation (
this, 0, 1,
Granite.TRANSITION_DURATION_OPEN,
new Adw.PropertyAnimationTarget (this, "opacity")
) {
easing = EASE_IN_OUT_QUAD
};

var reveal_target = new Adw.CallbackAnimationTarget ((val) => {
var height = get_height ();
var width = get_width ();

var end_x = (float) (width - (val * width));
var center_y = (float) (height - (val * height)) / 2;

overlay.allocate (
width, height, -1,
new Gsk.Transform ().translate (Graphene.Point ().init (end_x, center_y))
);
});

reveal = new Adw.TimedAnimation (
this, 0.9, 1,
Granite.TRANSITION_DURATION_OPEN * 3,
reveal_target
) {
easing = EASE_OUT_ELASTIC
};
}

private void update_transparency () requires (transparency_settings != null) {
Expand Down Expand Up @@ -172,6 +203,13 @@ public class Notifications.AbstractBubble : Gtk.Window {
base.present ();
}

fade.skip ();
reveal.skip ();
// Avoid a stutter at the beginning
opacity = 0;
fade.play ();
reveal.play ();

if (timeout != 0) {
timeout_id = Timeout.add (timeout, timeout_expired);
}
Expand Down