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popupMenu: Force submenu arrow rotation angles to multiples of 90

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When you open or close a PopupSubMenu the arrow icon rotates, but
the code previously assumed that the starting angle was a multiple
of 90.  If you click the submenu fast enough the rotation could overlap
with the previous rotation and you'd get something that wasn't a multiple
of 90.
Now we ensure that the ending arrowRotation angle is always a multiple
of 90 regardless of what the starting angle is.

https://bugzilla.gnome.org/show_bug.cgi?id=728927
This commit is contained in:
Hashem Nasarat 2014-04-25 01:09:39 -04:00 committed by Bastien Nocera
parent 62481f4b7c
commit dc5618558f
1 changed files with 6 additions and 2 deletions
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8
js/ui/popupMenu.js
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@ -922,8 +922,10 @@ const PopupSubMenu = new Lang.Class({
let [minHeight, naturalHeight] = this.actor.get_preferred_height(-1);
this.actor.height = 0;
this.actor._arrowRotation = this._arrow.rotation_angle_z;
let angle = this.actor._arrowRotation;
// animate to the first multiple of 90 greater than current angle
Tweener.addTween(this.actor,
{ _arrowRotation: this.actor._arrowRotation + 90,
{ _arrowRotation: angle - angle % 90 + 90,
height: naturalHeight,
time: 0.25,
onUpdateScope: this,
@ -955,8 +957,10 @@ const PopupSubMenu = new Lang.Class({
if (animate) {
this.actor._arrowRotation = this._arrow.rotation_angle_z;
let angle = this.actor._arrowRotation;
// animate to the first multiple of 90 less than current angle
Tweener.addTween(this.actor,
{ _arrowRotation: this.actor._arrowRotation - 90,
{ _arrowRotation: (angle - 1) - (angle - 1) % 90,
height: 0,
time: 0.25,
onUpdateScope: this,