From 0bee41c9a70a75b6f09de667f5c6d55bef3e85b0 Mon Sep 17 00:00:00 2001
From: Michail Vourlakos <mvourlakos@gmail.com>
Date: Tue, 24 Jul 2018 18:26:17 +0300
Subject: [PATCH] delayer for tasks wheel events

-- touchpads and fast wheel scrolling for
tasks was creating an unpredicted effect
from user point view. The solution was
already tested from audio badges, applets
wheel activation but hadnt got into
for Tasks.

BUG: 396737
FIXED-IN: 0.8.1
---
 .../package/contents/ui/task/TaskDelegate.qml  | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/plasmoid/package/contents/ui/task/TaskDelegate.qml b/plasmoid/package/contents/ui/task/TaskDelegate.qml
index b4b9d87f7..fce98432b 100644
--- a/plasmoid/package/contents/ui/task/TaskDelegate.qml
+++ b/plasmoid/package/contents/ui/task/TaskDelegate.qml
@@ -88,6 +88,7 @@ MouseArea{
     // hoverEnabled: false
     //opacity : isSeparator && (hiddenSpacerLeft.neighbourSeparator || hiddenSpacerRight.neighbourSeparator) ? 0 : 1
 
+    property bool blockWheel: false
     property bool buffersAreReady: false
     property bool delayingRemove: ListView.delayRemove
     property bool scalesUpdatedOnce: false
@@ -863,13 +864,16 @@ MouseArea{
     }
 
     onWheel: {
-        if (isSeparator || !root.mouseWheelActions || inWheelAction || inBouncingAnimation
+        if (isSeparator || !root.mouseWheelActions || blockWheel || inWheelAction || inBouncingAnimation
                 || (latteDock && (latteDock.dockIsHidden || latteDock.inSlidingIn || latteDock.inSlidingOut))){
             return;
         }
 
         var angle = wheel.angleDelta.y / 8;
 
+        blockWheel = true;
+        scrollDelayer.start();
+
         //positive direction
         if (angle > 12) {
             if (isLauncher || root.disableAllWindowsFunctionality) {
@@ -908,6 +912,18 @@ MouseArea{
         }
     }
 
+    //! A timer is needed in order to handle also touchpads that probably
+    //! send too many signals very fast. This way the signals per sec are limited.
+    //! The user needs to have a steady normal scroll in order to not
+    //! notice a annoying delay
+    Timer{
+        id: scrollDelayer
+
+        interval: 400
+
+        onTriggered: mainItemContainer.blockWheel = false;
+    }
+
     ///////////////// End Of Mouse Area Events ///////////////////
 
     ///// Handlers for Signals /////