Fix close button of Files app sidebar during calls in dark mode

Signed-off-by: Daniel Calviño Sánchez <danxuliu@gmail.com>

css/files.scss

@@ -163,6 +163,13 @@
 	display: none;
 }
 
+/* Force the white icon during calls, independent from white/dark mode
+ * selection, because it is shown on the black calling screen. */
+#app-sidebar .icon-close.force-icon-white-in-call.icon-shadow {
+	background-image: url(icon-color-path('close', 'actions', 'fff', 1, true));
+	filter: drop-shadow(1px 1px 4px var(--color-box-shadow));
+}
+
 
 
 

js/filesplugin.js

@@ -207,7 +207,7 @@
 			// waiting for other participants it should be kept black. However,
 			// this would need to hook in "updateParticipantsUI" which is where
 			// the "incall" class is set.
-			$('#app-sidebar .icon-close').addClass('icon-white icon-shadow');
+			$('#app-sidebar .icon-close').addClass('force-icon-white-in-call icon-shadow');
 		},
 
 		_hideCallUi: function() {
@@ -221,7 +221,7 @@
 			});
 
 			// Restore the icon to close the sidebar.
-			$('#app-sidebar .icon-close').removeClass('icon-white icon-shadow');
+			$('#app-sidebar .icon-close').removeClass('force-icon-white-in-call icon-shadow');
 
 			if (!this._$callContainerWrapper || this._$callContainerWrapper.hasClass('hidden')) {
 				return;