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  1. Qt
  2. QTBUG-58013

Cursor position changes not properly passed to input method

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Details

    • Android

    Description

      On Android, the platform input context does not implement update()
      (http://code.qt.io/cgit/qt/qtbase.git/tree/src/plugins/platforms/android/qandroidinputcontext.cpp?h=5.8.0#n645).
      Instead, it relies on connecting to the widget's cursorPositionChanged() signal
      (http://code.qt.io/cgit/qt/qtbase.git/tree/src/plugins/platforms/android/qandroidinputcontext.cpp?h=5.8.0#n684).

      As a result, custom widgets which properly interact with the input method via update() but do not provide cursorPositionChanged() suffer in the following way after changing the position:

      • The current word does not become the current preedit string.
      • The predictive text does not reflect the current context.
      • The next letter entered by the user is composed with the (invisible) preedit string from the previous context and inserted as the new preedit string at the cursor position.

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        Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-56042 QInputMethod visibleChanged signal fired incorrectly on Android

          • P4: Low - Would be nice to fix, but it's not very important.
          • Reported

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-95669 Clicking enter on some text fields it might freeze UI

          • 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-88701 QLineEdit::textEdited called with empty QString

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

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-93414 Qt Quick application stuck in a cursor update loop

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

              qtandroidteam Qt Android Team
              dg0yt Kai Pastor
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              6 Vote for this issue
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              Dates

                Created:
                Updated: