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Volume.qml

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+// SPDX-License-Identifier: Unlicense
+
+import QtQuick.Controls 2.13
+
+Button {
+    property bool muted
+    property alias value: volume.value
+
+    implicitWidth: implicitHeight
+    icon.name: 'audio-volume-' +
+        (muted ? 'muted' :
+         (value < 0.33 ? 'low' :
+          (value < 0.66 ? 'medium' : 'high')))
+
+    checkable: true
+    checked: popup.opened
+
+    onClicked: popup.opened ? popup.close() : popup.open()
+    Popup {
+        id: popup
+        y: -height
+        height: 100
+        closePolicy: Popup.CloseOnEscape | Popup.CloseOnPressOutsideParent
+        Slider {
+            id: volume
+            anchors.fill: parent
+            orientation: Qt.Vertical
+        }
+    }
+}