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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "qinputcontrol_p.h"
#include <QtCore/qmimedata.h>
#include <QtGui/qevent.h>
QT_BEGIN_NAMESPACE
QInputControl::QInputControl(Type type, QObject *parent)
: QObject(parent)
, m_type(type)
{
}
QInputControl::QInputControl(Type type, QObjectPrivate &dd, QObject *parent)
: QObject(dd, parent)
, m_type(type)
{
}
bool QInputControl::isAcceptableInput(const QKeyEvent *event) const
{
const QString text = event->text();
if (text.isEmpty())
return false;
const QChar c = text.at(0);
// Formatting characters such as ZWNJ, ZWJ, RLM, etc. This needs to go before the
// next test, since CTRL+SHIFT is sometimes used to input it on Windows.
if (c.category() == QChar::Other_Format)
return true;
// QTBUG-35734: ignore Ctrl/Ctrl+Shift; accept only AltGr (Alt+Ctrl) on German keyboards
if (event->modifiers() == Qt::ControlModifier
|| event->modifiers() == (Qt::ShiftModifier | Qt::ControlModifier)) {
return false;
}
if (c.isPrint())
return true;
if (c.category() == QChar::Other_PrivateUse)
return true;
if (c.isHighSurrogate() && text.size() > 1 && text.at(1).isLowSurrogate())
return true;
if (m_type == TextEdit && c == u'\t')
return true;
return false;
}
bool QInputControl::isCommonTextEditShortcut(const QKeyEvent *ke)
{
if (ke->modifiers() == Qt::NoModifier
|| ke->modifiers() == Qt::ShiftModifier
|| ke->modifiers() == Qt::KeypadModifier) {
if (ke->key() < Qt::Key_Escape) {
return true;
} else {
switch (ke->key()) {
case Qt::Key_Return:
case Qt::Key_Enter:
case Qt::Key_Delete:
case Qt::Key_Home:
case Qt::Key_End:
case Qt::Key_Backspace:
case Qt::Key_Left:
case Qt::Key_Right:
case Qt::Key_Up:
case Qt::Key_Down:
case Qt::Key_Tab:
return true;
default:
break;
}
}
#if QT_CONFIG(shortcut)
} else if (ke->matches(QKeySequence::Copy)
|| ke->matches(QKeySequence::Paste)
|| ke->matches(QKeySequence::Cut)
|| ke->matches(QKeySequence::Redo)
|| ke->matches(QKeySequence::Undo)
|| ke->matches(QKeySequence::MoveToNextWord)
|| ke->matches(QKeySequence::MoveToPreviousWord)
|| ke->matches(QKeySequence::MoveToStartOfDocument)
|| ke->matches(QKeySequence::MoveToEndOfDocument)
|| ke->matches(QKeySequence::SelectNextWord)
|| ke->matches(QKeySequence::SelectPreviousWord)
|| ke->matches(QKeySequence::SelectStartOfLine)
|| ke->matches(QKeySequence::SelectEndOfLine)
|| ke->matches(QKeySequence::SelectStartOfBlock)
|| ke->matches(QKeySequence::SelectEndOfBlock)
|| ke->matches(QKeySequence::SelectStartOfDocument)
|| ke->matches(QKeySequence::SelectEndOfDocument)
|| ke->matches(QKeySequence::SelectAll)
) {
return true;
#endif
}
return false;
}
/*!
\internal
Creates a wrapper for returning QMimeData in response to
Qt::ImCurrentSelection, while being backwards compatible
with clients who only read the plain text string.
*/
QVariant QInputControl::selectionWrapper(QMimeData *mimeData)
{
struct MimeDataSelection
{
QMimeData *mimeData = nullptr;
operator QMimeData*() const { return mimeData; }
operator QString() const { return mimeData->text(); }
};
static bool registeredConversions = []{
return QMetaType::registerConverter<MimeDataSelection, QMimeData*>()
&& QMetaType::registerConverter<MimeDataSelection, QString>();
}();
Q_ASSERT(registeredConversions);
return QVariant::fromValue(MimeDataSelection{mimeData});
}
QMimeData *QInputControl::mimeDataForInputEvent(QInputMethodEvent *event)
{
const auto &attributes = event->attributes();
auto mimeDataAttr = std::find_if(attributes.begin(), attributes.end(),
[](auto a) { return a.type == QInputMethodEvent::MimeData; });
return mimeDataAttr != event->attributes().end() ?
mimeDataAttr->value.value<QMimeData*>() : nullptr;
}
QT_END_NAMESPACE
#include "moc_qinputcontrol_p.cpp"
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