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  1. Qt
  2. QTBUG-48193

Empty ParallelAnimation/SequentialAnimation emit stopped() signal twice and earlier than started() signal

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    • Q1/2020 Finale, Q2/2020 kick off

      Here is tiny example runnable by qmlscene:

      Rectangle {
    id: root
    width: 600
    height: 400
    color: "seagreen"

    ParallelAnimation {
//    SequentialAnimation {
        id: animation
        running: true

//        ColorAnimation {
//            target: root
//            property: "color"
//            to: "salmon"
//            duration: 2000
//        }

        onStarted: console.log("animation started")
        onStopped: console.log("animation stopped")
    }
}

      With ColorAnimation commented out, the log looks like this:

      qml: animation stopped
qml: animation stopped
qml: animation started

      Expected output (wich is true for the case with ColorAnimation):

      qml: animation started
qml: animation stopped

        For Gerrit Dashboard: QTBUG-48193
        # Subject Branch Project Status CR V
        294695,3 Fix signal emission order for zero-duration animations 5.12 qt/qtdeclarative Status: MERGED +2 0
        295296,3 Fix signal emission order for zero-duration animations 5.15 qt/qtdeclarative Status: MERGED +2 0

            smd Jan Arve
            dvolosnykh Dmitry Volosnykh
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              Created:
              Updated:
              Resolved:

                There are no open Gerrit changes