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  1. Qt
  2. QTBUG-95421

need the ability to delay (increment timestamps of) touch events, as with mouse events

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    Description

      All the QTest::mouseX() functions have an optional delay argument: https://doc.qt.io/qt-6/qtest.html#mousePress but we don't have it for touch events. Sometimes we need to delay a touch press to avoid double-click detection, for example, or to control the velocity calculation by virtually slowing down the touch moves. This is best done by controlling the event timestamps rather than via actual QTest::qWait() delays: for the sake of speed, and also because it seems like when the variant of QWindowSystemInterface::handleTouchEvent() that does not take a timestamp uses 

          unsigned long time = QWindowSystemInterfacePrivate::eventTime.elapsed();

      qWait() doesn't always affect it.

      One minor goal for Qt 6 was that QWindowSystemInterface event-handling functions should all take timestamps. handleTouchEvent() still has both variants (one taking a timestamp, and one not). It would be best to eventually remove the one that uses that elapsed() time. But then QTest functions need to always provide timestamps.

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          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-60389 QTouchEvents are missing modifiers on most platforms

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

          Task - A task that needs to be done. QTBUG-63146 qtestlib: cleanups, re-design, API completeness and documentation

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

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-126519 it's not useful that defaultMouseDelay() in QTestLib is 0 by default

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

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-129794 QTest::mouseClick() and mouseDClick() don't actually apply the delay to each event in the sequence

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

          Suggestion - Public suggestions QTBUG-81979 Allow configuring a global QTestLib timeout

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

          Suggestion - Public suggestions QTBUG-110314 Add QTestRandomNumber that tracks the seed used for reproducability

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

          Suggestion - Public suggestions QTBUG-102441 QuickTest cannot double-click TapHandler

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed
          For Gerrit Dashboard: QTBUG-95421
          # Subject Branch Project Status CR V
          362286,9 Add keyboard modifiers and delay to QTest::touchEvent() dev qt/qtbase Status: NEW 0 0

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              srutledg Shawn Rutledge
              srutledg Shawn Rutledge
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