From 1ae83644c8b60b2850233d3a7edd1831ea3257d1 Mon Sep 17 00:00:00 2001
From: Devin Lin <espidev@gmail.com>
Date: Thu, 8 Dec 2022 21:24:33 -0500
Subject: [PATCH] taskswitcher: Improve performance of task preview loading

---
 components/mobileshell/qml/taskswitcher/Task.qml      | 5 +----
 components/mobileshell/qml/taskswitcher/Thumbnail.qml | 7 ++++---
 2 files changed, 5 insertions(+), 7 deletions(-)

diff --git a/components/mobileshell/qml/taskswitcher/Task.qml b/components/mobileshell/qml/taskswitcher/Task.qml
index 83c63485..c0ac84d9 100644
--- a/components/mobileshell/qml/taskswitcher/Task.qml
+++ b/components/mobileshell/qml/taskswitcher/Task.qml
@@ -227,13 +227,10 @@ Item {
                     // attempt to load window preview
                     Loader {
                         id: pipeWireLoader
-                        active: (taskSwitcher.visible || taskSwitcher.tasksModel.taskReorderingEnabled) && MobileShell.MobileShellSettings.taskSwitcherPreviewsEnabled
+                        active: MobileShell.MobileShellSettings.taskSwitcherPreviewsEnabled
                         anchors.fill: parent
                         source: Qt.resolvedUrl("./Thumbnail.qml")
-                        
                         asynchronous: true
-                        
-                        onLoaded: this.item.refresh()
                     }
                     
                     // darken effect
diff --git a/components/mobileshell/qml/taskswitcher/Thumbnail.qml b/components/mobileshell/qml/taskswitcher/Thumbnail.qml
index 8fda0883..c47faf27 100644
--- a/components/mobileshell/qml/taskswitcher/Thumbnail.qml
+++ b/components/mobileshell/qml/taskswitcher/Thumbnail.qml
@@ -13,13 +13,14 @@ import org.kde.taskmanager 0.1 as TaskManager
 
 PipeWire.PipeWireSourceItem {
     id: root
-    visible: nodeId > 0
+    visible: (taskSwitcher.visible || taskSwitcher.tasksModel.taskReorderingEnabled) 
+    opacity: (nodeId > 0) ? 1 : 0
     nodeId: waylandItem.nodeId
     
     readonly property alias uuid: waylandItem.uuid
 
-    function refresh() {
-        if (model.WinIdList) {
+    onVisibleChanged: {
+        if (model.WinIdList && visible) {
             waylandItem.uuid = model.WinIdList[0];
         }
     }