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  1. Qt
  2. QTBUG-60465

MouseArea stops working after OS steals release event

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Details

    • Bug
    • Resolution: Done
    • P1: Critical
    • 5.9.4
    • 5.8.0
    • Quick: Mouse Touch and Tablet input
    • None
    • iPad 2 (MC769BZ/A), running iOS 7.1 (11D167),
      iPad Air (A1474), running iOS 10.3
    • dd2657e30a42c269f47195d61a9fe8a5fff02912

    Description

      Using a QtQuick MouseArea on iOS, whenever the user presses the area (touch down) and the release (touch up) happens in a system context (if we press home on iOS or recent apps on Android, for instance) mouse area is stuck in pressed state forever, and stops responding to any touch events.

      I recorded this bug on a small 20s video, attached to this bug report.
      Also attached is the code I used for the test.

      What seems to happen is that, whenever MouseArea detects a pressed event (or touch down), it waits for the corresponding release event, but as we go out of the app context when doing a gesture on iOS, the release event is never received by mouseArea, and it remains forever waiting for the release event, in pressed state.

      Attachments

        1. MouseareaTest.mp4
          5.76 MB
          Luiggi Reffatti
        2. TestRect.qml
          2 kB
          Luiggi Reffatti

        Issue Links

          duplicates

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-53036 MouseArea bug in the latest Android

          • P1: Critical - Urgent and Important, will STOP the release if matched with set FixVersion field. This includes regressions from the last version that are not edge cases; Data loss; Build issues; All but the most unlikely crashes/lockups/hanging; Serious usability issues and embarrassing bugs & Bugs critical to a deliverable. This is the highest possible priority for requirements.
          • Closed
          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-69233 When the screen is rotated while interacting with a MouseArea it will get stuck in the pressed state

          • P1: Critical - Urgent and Important, will STOP the release if matched with set FixVersion field. This includes regressions from the last version that are not edge cases; Data loss; Build issues; All but the most unlikely crashes/lockups/hanging; Serious usability issues and embarrassing bugs & Bugs critical to a deliverable. This is the highest possible priority for requirements.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-64130 MouseArea Freezes when device is rotated during mouse down/pressed

          • P1: Critical - Urgent and Important, will STOP the release if matched with set FixVersion field. This includes regressions from the last version that are not edge cases; Data loss; Build issues; All but the most unlikely crashes/lockups/hanging; Serious usability issues and embarrassing bugs & Bugs critical to a deliverable. This is the highest possible priority for requirements.
          • Reported

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-54860 When moving the mouse quickly over items that have a Behavior set on font size changing when the mouse is over it then it can get stuck in the mouse over position

          • P3: Somewhat important - Should be fixed, but doesn't affect the release in any way.
          • Closed
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          Activity

            People

              srutledg Shawn Rutledge
              lmreffatti Luiggi Reffatti
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              3 Vote for this issue
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              6 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved:

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