PressAndHoldButton.qml Example File

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  import QtQuick 2.0

  Image {
      id: container

      property int repeatDelay: 300
      property int repeatDuration: 75
      property bool pressed: false

      signal clicked

      scale: pressed ? 0.9 : 1

      function release() {
          autoRepeatClicks.stop()
          container.pressed = false
      }

      SequentialAnimation on pressed {
          id: autoRepeatClicks
          running: false

          PropertyAction { target: container; property: "pressed"; value: true }
          ScriptAction { script: container.clicked() }
          PauseAnimation { duration: repeatDelay }

          SequentialAnimation {
              loops: Animation.Infinite
              ScriptAction { script: container.clicked() }
              PauseAnimation { duration: repeatDuration }
          }
      }

      MouseArea {
          anchors.fill: parent

          onPressed: autoRepeatClicks.start()
          onReleased: container.release()
          onCanceled: container.release()
      }
  }