extract PulseAnimation component from 3 modules

shell/modules/BatteryModule.qml

@@ -13,25 +13,9 @@ M.PinnableSection {
 
     property real _blinkOpacity: 1
 
-    SequentialAnimation {
+    M.PulseAnimation on _blinkOpacity {
         running: S.BatteryService.critical
-        loops: Animation.Infinite
-        NumberAnimation {
-            target: root
-            property: "_blinkOpacity"
-            to: 0.45
-            duration: 400
-            easing.type: Easing.InOutQuad
-        }
-        NumberAnimation {
-            target: root
-            property: "_blinkOpacity"
-            to: 1
-            duration: 400
-            easing.type: Easing.InOutQuad
-        }
-        onRunningChanged: if (!running)
-            root._blinkOpacity = 1
+        minOpacity: 0.45
     }
 
     // Bar widgets

shell/modules/PrivacyModule.qml

@@ -55,19 +55,9 @@ Row {
             shadowHorizontalOffset: 0
         }
 
-        SequentialAnimation on opacity {
+        M.PulseAnimation on opacity {
             running: root._videoCapture
-            loops: Animation.Infinite
-            NumberAnimation {
-                to: 0.4
-                duration: 600
-                easing.type: Easing.InOutQuad
-            }
-            NumberAnimation {
-                to: 1
-                duration: 600
-                easing.type: Easing.InOutQuad
-            }
+            halfDuration: 600
         }
     }
 
@@ -89,19 +79,9 @@ Row {
             shadowHorizontalOffset: 0
         }
 
-        SequentialAnimation on opacity {
+        M.PulseAnimation on opacity {
             running: root._audioIn
-            loops: Animation.Infinite
-            NumberAnimation {
-                to: 0.4
-                duration: 600
-                easing.type: Easing.InOutQuad
-            }
-            NumberAnimation {
-                to: 1
-                duration: 600
-                easing.type: Easing.InOutQuad
-            }
+            halfDuration: 600
         }
     }
 }

shell/modules/PulseAnimation.qml

@@ -0,0 +1,20 @@
+import QtQuick
+
+SequentialAnimation {
+    id: root
+    loops: Animation.Infinite
+
+    property real minOpacity: 0.4
+    property int halfDuration: 400
+
+    NumberAnimation {
+        to: root.minOpacity
+        duration: root.halfDuration
+        easing.type: Easing.InOutQuad
+    }
+    NumberAnimation {
+        to: 1
+        duration: root.halfDuration
+        easing.type: Easing.InOutQuad
+    }
+}

shell/modules/TrayModule.qml

@@ -29,25 +29,9 @@ RowLayout {
             implicitWidth: S.Theme.fontSize + 4
             implicitHeight: S.Theme.fontSize + 4
 
-            SequentialAnimation {
+            M.PulseAnimation on _pulseOpacity {
                 running: iconItem._needsAttention
-                loops: Animation.Infinite
-                NumberAnimation {
-                    target: iconItem
-                    property: "_pulseOpacity"
-                    to: 0.3
-                    duration: 400
-                    easing.type: Easing.InOutQuad
-                }
-                NumberAnimation {
-                    target: iconItem
-                    property: "_pulseOpacity"
-                    to: 1
-                    duration: 400
-                    easing.type: Easing.InOutQuad
-                }
-                onRunningChanged: if (!running)
-                    iconItem._pulseOpacity = 1
+                minOpacity: 0.3
             }
 
             Item {

shell/modules/qmldir

@@ -31,6 +31,7 @@ PowerModule 1.0 PowerModule.qml
 PowerProfileModule 1.0 PowerProfileModule.qml
 PrivacyModule 1.0 PrivacyModule.qml
 ProcessList 1.0 ProcessList.qml
+PulseAnimation 1.0 PulseAnimation.qml
 ScreenCapture 1.0 ScreenCapture.qml
 ScreenCorners 1.0 ScreenCorners.qml
 TemperatureModule 1.0 TemperatureModule.qml