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panel: Notify when solid style changes

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In order to improve the transparent top bar's legibility with lighter
wallpapers, we want the background to adapt to the top bar style. To
allow for that in a clean way, export that information in a property
and notify when it changes.

https://bugzilla.gnome.org/show_bug.cgi?id=783913
This commit is contained in:
Florian Müllner 2018-07-24 12:01:35 +02:00
parent 38c1ebba62
commit e45e8a2a14
1 changed files with 11 additions and 0 deletions
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11
js/ui/panel.js
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@ -1039,6 +1039,10 @@ var Panel = new Lang.Class({
return this._leftBox.opacity; return this._leftBox.opacity;
}, },
get solidStyle() {
return this.actor.has_style_class_name('solid');
},
_updatePanel() { _updatePanel() {
let panel = Main.sessionMode.panel; let panel = Main.sessionMode.panel;
this._hideIndicators(); this._hideIndicators();
@ -1073,8 +1077,12 @@ var Panel = new Lang.Class({
}, },
_updateSolidStyle() { _updateSolidStyle() {
let hadSolidStyle = this.solidStyle;
if (this.has_style_pseudo_class('overview') || !Main.sessionMode.hasWindows) { if (this.has_style_pseudo_class('overview') || !Main.sessionMode.hasWindows) {
this._removeStyleClassName('solid'); this._removeStyleClassName('solid');
if (hadSolidStyle)
this.emit('solid-style-changed');
return; return;
} }
@ -1104,6 +1112,8 @@ var Panel = new Lang.Class({
else else
this._removeStyleClassName('solid'); this._removeStyleClassName('solid');
if (isNearEnough != hadSolidStyle)
this.emit('solid-style-changed');
}, },
_hideIndicators() { _hideIndicators() {
@ -1213,3 +1223,4 @@ var Panel = new Lang.Class({
}); });
} }
}); });
Signals.addSignalMethods(Panel.prototype);