[gnome-shell] power: Fix icon when discharging at 100%

[verdre <jonasd src gnome org>]

commit 4ae04d5aa8fda62c1654efe7f45296341106cc7e
Author: Florian Müllner <fmuellner gnome org>
Date:   Tue May 26 21:26:22 2020 +0200

    power: Fix icon when discharging at 100%
    
    The special-case for a fill level of 100 introduced in commit 5fd52e99d39
    should only apply when charging, for the discharging state there's a
    proper battery-level-100-symbolic icon.
    
    https://gitlab.gnome.org/GNOME/gnome-shell/issues/2286

 js/ui/status/power.js | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)
---
diff --git a/js/ui/status/power.js b/js/ui/status/power.js
index d8b7da9c71..0e8471fdfa 100644
--- a/js/ui/status/power.js
+++ b/js/ui/status/power.js
@@ -112,12 +112,12 @@ class Indicator extends PanelMenu.SystemIndicator {
         let chargingState = this._proxy.State == UPower.DeviceState.CHARGING
             ? '-charging' : '';
         let fillLevel = 10 * Math.floor(this._proxy.Percentage / 10);
-        let icon;
-        if (this._proxy.State == UPower.DeviceState.FULLY_CHARGED ||
-            fillLevel === 100)
-            icon = 'battery-level-100-charged-symbolic';
-        else
-            icon = 'battery-level-%d%s-symbolic'.format(fillLevel, chargingState);
+        const charged =
+            this._proxy.State === UPower.DeviceState.FULLY_CHARGED ||
+            (this._proxy.State === UPower.DeviceState.CHARGING && fillLevel === 100);
+        const icon = charged
+            ? 'battery-level-100-charged-symbolic'
+            : 'battery-level-%d%s-symbolic'.format(fillLevel, chargingState);
 
         // Make sure we fall back to fallback-icon-name and not GThemedIcon's
         // default fallbacks