cc: stop avatar and app icon reloads from stalling the sheet, disable

edit fill in edit mode

fixes #3975
port 2.0

(cherry picked from commit d2792b8a11)

quickshell/Modules/ControlCenter/Components/CcWidgetSheet.qml

@@ -108,11 +108,13 @@ DBottomSheet {
                         visible: item.modelData.id !== "user" || PortalService.profileImageUrl === ""
                     }
 
-                    DCircularImage {
+                    Loader {
                         anchors.fill: parent
-                        imageSource: PortalService.profileImageUrl
-                        fallbackIcon: "material:person"
-                        visible: item.modelData.id === "user" && PortalService.profileImageUrl !== ""
+                        active: item.modelData.id === "user" && PortalService.profileImageUrl !== ""
+                        sourceComponent: DCircularImage {
+                            imageSource: PortalService.profileImageUrl
+                            fallbackIcon: "material:person"
+                        }
                     }
 
                     FocusRing {

quickshell/Modules/ControlCenter/Widgets/ActionTile.qml

@@ -9,7 +9,6 @@ CcTile {
     readonly property bool finishing: action === "edit" && (host?.editMode ?? false)
 
     toggle: false
-    active: finishing
     tooltips: !finishing
     iconName: finishing ? "check" : widgetDef?.icon ?? ""
     title: widgetDef?.text ?? ""

quickshell/Modules/ControlCenter/Widgets/CcAppIcon.qml

@@ -2,6 +2,7 @@ import QtQuick
 import Quickshell
 import Quickshell.Widgets
 import qs.Common
+import qs.DCommon.Common as DCommon
 import qs.DCommon.Widgets
 
 Item {
@@ -9,18 +10,31 @@ Item {
 
     property string appId: ""
     property real iconSize: Theme.iconSize
+    readonly property int iconRequestSize: DCommon.Style.iconRasterSize(iconSize)
 
     implicitWidth: iconSize
     implicitHeight: iconSize
 
     IconImage {
         id: image
+
+        property string paintedFor: ""
+        readonly property bool holdsCurrentIcon: paintedFor !== "" && paintedFor === root.appId
+        readonly property bool showsFrame: status === Image.Ready || (holdsCurrentIcon && status === Image.Loading)
+
         anchors.fill: parent
         source: root.appId ? Paths.getAppIcon(root.appId, DesktopEntries.heuristicLookup(root.appId)) : ""
+        backer.sourceSize: Qt.size(root.iconRequestSize, root.iconRequestSize)
+        backer.retainWhileLoading: true
         smooth: true
         mipmap: true
         asynchronous: true
-        visible: status === Image.Ready
+        visible: showsFrame
+        onStatusChanged: {
+            if (status !== Image.Ready)
+                return;
+            paintedFor = root.appId;
+        }
     }
 
     DIcon {