From 8aac7a2b9c8589a247b52a3ff265f7f909fffca9 Mon Sep 17 00:00:00 2001
From: Marco Martin <notmart@gmail.com>
Date: Thu, 1 Oct 2015 17:28:09 +0200
Subject: [PATCH] don't show the task manager if there are no tasks

---
 containments/taskpanel/package/contents/ui/TaskSwitcher.qml | 4 ++++
 containments/taskpanel/package/contents/ui/main.qml         | 1 +
 2 files changed, 5 insertions(+)

diff --git a/containments/taskpanel/package/contents/ui/TaskSwitcher.qml b/containments/taskpanel/package/contents/ui/TaskSwitcher.qml
index bfbdf9c3..a9b8dc30 100644
--- a/containments/taskpanel/package/contents/ui/TaskSwitcher.qml
+++ b/containments/taskpanel/package/contents/ui/TaskSwitcher.qml
@@ -32,12 +32,16 @@ FullScreenPanel {
     height: Screen.height
     property int offset: 0
     property int overShoot: units.gridUnit * 2
+    property int tasksCount: filteredWindowModel.count
 
     color: Qt.rgba(0, 0, 0, 0.6 * Math.min(
         (Math.min(tasksView.contentY + tasksView.height, tasksView.height) / tasksView.height),
         ((tasksView.contentHeight - tasksView.contentY - tasksView.headerItem.height - tasksView.footerItem.height)/tasksView.height)))
 
     function show() {
+        if (filteredWindowModel.count == 0) {
+            return;
+        }
         if (!visible) {
             tasksView.contentY = -tasksView.headerItem.height;
         }
diff --git a/containments/taskpanel/package/contents/ui/main.qml b/containments/taskpanel/package/contents/ui/main.qml
index afea3e85..f30556c7 100644
--- a/containments/taskpanel/package/contents/ui/main.qml
+++ b/containments/taskpanel/package/contents/ui/main.qml
@@ -83,6 +83,7 @@ PlasmaCore.ColorScope {
                 anchors.left: parent.left
                 height: parent.height
                 width: parent.width/3
+                enabled: taskSwitcher.tasksCount > 0
                 iconSource: "applications-other"
                 onClicked: taskSwitcher.visible ? taskSwitcher.hide() : taskSwitcher.show();
             }