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  1. Qt
  2. QTBUG-71533

Many problems with Input Handlers on the touch screen

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    • Windows

    Description

      I have been experimenting with Input Handlers for several days. During this process, I noticed some errors that I also reported:

      https://bugreports.qt.io/browse/QTBUG-71470

      https://bugreports.qt.io/browse/QTBUG-71469

      https://bugreports.qt.io/browse/QTBUG-71476

      https://bugreports.qt.io/browse/QTBUG-71466

      https://bugreports.qt.io/browse/QTBUG-71431

      https://bugreports.qt.io/browse/QTBUG-71427

      I noticed the above errors with Qt 5.12 Beta 3 (or Beta 2. I'm not sure now, but I installed this version on 24/10/2018. It was definitely the previous version to currently available) Today I updated the Beta version to 5.12.0-201810231013 to test it with my sandbox application.

      Unfortunately, many things have stopped working after this update...

      (It is a pity that with MaintananceTool it is not possible to install the previous beta version ... I believe that all versions of Beta should be available to compare where something worked and where not)

       

      But back to the topic:

      I am attaching here my sample application (multi-touch) and logs which I logged separately starting the application to obtain individual errors. The application consists of 4 Tabs, which deal with tests of various Handlers. Problems that currently exist:

      1. In Tab "Multiple PointHandler": PointHandler does not work correctly if touch with finger and move. Touch visualisation and info are not visible... It seems that when I touch with my finger Touch Events are blocked and when I release my finger will be processed. I touched the touch screen immediately after the application started and not after 15 seconds and I kept it for more than 10 seconds (see it in "log1.txt")
      2. In Tab "DragHandler": If I drag with my finger the box with the text "TapHandler \ nDragHandler" and drop it then drag the box with the text "DragHandler \ nTapHandler" over first dragged box. First box follow dragging of the seconds box. In addition, when I move the mouse cursor he also follows it although the mouse is not pressed. (see it in log2.txt)
      3. In Tab "PinchHandler" if I try to pinch the top card with 3 fingers PinchHandler it will be only short activated and make no pinch. (see it in log3.txt)

       

      All of these problems did not occur in the previous Beta version to: 5.12.0-201810231013

      Attachments

        1. log1.txt
          8 kB
        2. log2.txt
          138 kB
        3. log3.txt
          97 kB
        4. multi-touch.7z
          6 kB

        Issue Links

          depends on

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-71466 TapHandler goes in invalid state if it was released outside parent

          • 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-71469 TapHandler doubleTapped incorrectly emitted from the mouse or touchpad

          • 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-71470 TapHandler goes in invalid state after 3 taps with touchpad

          • 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-71476 MouseArea goes in invalid state after touch with two fingers

          • 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-71427 Dynamically created PointHandler does not work

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-71431 Using multiple PointHandler if starting touch is in the same moment is impossible

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed
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              srutledg Shawn Rutledge
              permotion88 Karol Polak
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                Resolved:

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