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39
40#include "qinputcontrol_p.h"
41#include <QtGui/qevent.h>
42
43QT_BEGIN_NAMESPACE
44
45QInputControl::QInputControl(Type type, QObject *parent)
46 : QObject(parent)
47 , m_type(type)
48{
49}
50
51QInputControl::QInputControl(Type type, QObjectPrivate &dd, QObject *parent)
52 : QObject(dd, parent)
53 , m_type(type)
54{
55}
56
57bool QInputControl::isAcceptableInput(const QKeyEvent *event) const
58{
59 const QString text = event->text();
60 if (text.isEmpty())
61 return false;
62
63 const QChar c = text.at(0);
64
65 // Formatting characters such as ZWNJ, ZWJ, RLM, etc. This needs to go before the
66 // next test, since CTRL+SHIFT is sometimes used to input it on Windows.
67 if (c.category() == QChar::Other_Format)
68 return true;
69
70 // QTBUG-35734: ignore Ctrl/Ctrl+Shift; accept only AltGr (Alt+Ctrl) on German keyboards
71 if (event->modifiers() == Qt::ControlModifier
72 || event->modifiers() == (Qt::ShiftModifier | Qt::ControlModifier)) {
73 return false;
74 }
75
76 if (c.isPrint())
77 return true;
78
79 if (c.category() == QChar::Other_PrivateUse)
80 return true;
81
82 if (m_type == TextEdit && c == QLatin1Char('\t'))
83 return true;
84
85 return false;
86}
87
88bool QInputControl::isCommonTextEditShortcut(const QKeyEvent *ke)
89{
90 if (ke->modifiers() == Qt::NoModifier
91 || ke->modifiers() == Qt::ShiftModifier
92 || ke->modifiers() == Qt::KeypadModifier) {
93 if (ke->key() < Qt::Key_Escape) {
94 return true;
95 } else {
96 switch (ke->key()) {
97 case Qt::Key_Return:
98 case Qt::Key_Enter:
99 case Qt::Key_Delete:
100 case Qt::Key_Home:
101 case Qt::Key_End:
102 case Qt::Key_Backspace:
103 case Qt::Key_Left:
104 case Qt::Key_Right:
105 case Qt::Key_Up:
106 case Qt::Key_Down:
107 case Qt::Key_Tab:
108 return true;
109 default:
110 break;
111 }
112 }
113#if QT_CONFIG(shortcut)
114 } else if (ke->matches(QKeySequence::Copy)
115 || ke->matches(QKeySequence::Paste)
116 || ke->matches(QKeySequence::Cut)
117 || ke->matches(QKeySequence::Redo)
118 || ke->matches(QKeySequence::Undo)
119 || ke->matches(QKeySequence::MoveToNextWord)
120 || ke->matches(QKeySequence::MoveToPreviousWord)
121 || ke->matches(QKeySequence::MoveToStartOfDocument)
122 || ke->matches(QKeySequence::MoveToEndOfDocument)
123 || ke->matches(QKeySequence::SelectNextWord)
124 || ke->matches(QKeySequence::SelectPreviousWord)
125 || ke->matches(QKeySequence::SelectStartOfLine)
126 || ke->matches(QKeySequence::SelectEndOfLine)
127 || ke->matches(QKeySequence::SelectStartOfBlock)
128 || ke->matches(QKeySequence::SelectEndOfBlock)
129 || ke->matches(QKeySequence::SelectStartOfDocument)
130 || ke->matches(QKeySequence::SelectEndOfDocument)
131 || ke->matches(QKeySequence::SelectAll)
132 ) {
133 return true;
134#endif
135 }
136 return false;
137}
138
139QT_END_NAMESPACE
140