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  1. Qt
  2. QTBUG-16867

QAbstractItemView focusInEvent bug leads to incorrect WA_InputMethodEnabled, which leads to assertion

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Details

    • Bug
    • Resolution: Out of scope
    • P2: Important
    • 4.8.x
    • 4.6.1
    • Widgets: Widgets and Dialogs
    • None
    • RHEL 5.5

    Description

      The bug is pretty obvious when you know it's there. The following line in QAbstractItemView::focusInEvent incorrectly tests for the presence of a flag.

          if (currentIndex().flags() != Qt::ItemIsEditable)
        setAttribute(Qt::WA_InputMethodEnabled, false);

      It SHOULD read

          if ((currentIndex().flags() & Qt::ItemIsEditable) != Qt::ItemIsEditable)
        setAttribute(Qt::WA_InputMethodEnabled, false);

      This bug causes the WA_InputMethodEnable attribute to be incorrectly set, which triggers an assertion in QInputContext::setFocusWidget.

      void QInputContext::setFocusWidget(QWidget *widget)
{
    Q_ASSERT(!widget || widget->testAttribute(Qt::WA_InputMethodEnabled));

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            mrequenes Max Requenes
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            Dates

              Created:
              Updated:
              Resolved:

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