Added Caps Lock check and warning at askpassphrasedialog.
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7298ebb432
3 changed files with 71 additions and 2 deletions
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@ -6,17 +6,25 @@
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#include <QMessageBox>
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#include <QPushButton>
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#include <QKeyEvent>
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AskPassphraseDialog::AskPassphraseDialog(Mode mode, QWidget *parent) :
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QDialog(parent),
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ui(new Ui::AskPassphraseDialog),
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mode(mode),
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model(0)
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model(0),
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fCapsLock(false)
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{
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ui->setupUi(this);
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ui->passEdit1->setMaxLength(MAX_PASSPHRASE_SIZE);
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ui->passEdit2->setMaxLength(MAX_PASSPHRASE_SIZE);
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ui->passEdit3->setMaxLength(MAX_PASSPHRASE_SIZE);
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// Setup Caps Lock detection.
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ui->passEdit1->installEventFilter(this);
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ui->passEdit2->installEventFilter(this);
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ui->passEdit3->installEventFilter(this);
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ui->capsLabel->clear();
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switch(mode)
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{
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@ -184,3 +192,46 @@ void AskPassphraseDialog::textChanged()
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}
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ui->buttonBox->button(QDialogButtonBox::Ok)->setEnabled(acceptable);
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}
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bool AskPassphraseDialog::event(QEvent *event)
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{
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// Detect Caps Lock key press.
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if (event->type() == QEvent::KeyPress) {
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QKeyEvent *ke = static_cast<QKeyEvent *>(event);
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if (ke->key() == Qt::Key_CapsLock) {
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fCapsLock = !fCapsLock;
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}
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if (fCapsLock) {
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ui->capsLabel->setText(tr("Warning: The Caps Lock key is on."));
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} else {
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ui->capsLabel->clear();
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}
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}
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return QWidget::event(event);
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}
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bool AskPassphraseDialog::eventFilter(QObject *, QEvent *event)
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{
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/* Detect Caps Lock.
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* There is no good OS-independent way to check a key state in Qt, but we
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* can detect Caps Lock by checking for the following condition:
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* Shift key is down and the result is a lower case character, or
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* Shift key is not down and the result is an upper case character.
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*/
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if (event->type() == QEvent::KeyPress) {
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QKeyEvent *ke = static_cast<QKeyEvent *>(event);
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QString str = ke->text();
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if (str.length() != 0) {
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const QChar *psz = str.unicode();
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bool fShift = (ke->modifiers() & Qt::ShiftModifier) != 0;
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if ((fShift && psz->isLower()) || (!fShift && psz->isUpper())) {
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fCapsLock = true;
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ui->capsLabel->setText(tr("Warning: The Caps Lock key is on."));
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} else if (psz->isLetter()) {
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fCapsLock = false;
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ui->capsLabel->clear();
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}
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}
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}
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return false;
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}
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@ -32,9 +32,12 @@ private:
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Ui::AskPassphraseDialog *ui;
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Mode mode;
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WalletModel *model;
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bool fCapsLock;
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private slots:
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void textChanged();
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bool event(QEvent *event);
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bool eventFilter(QObject *, QEvent *event);
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};
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#endif // ASKPASSPHRASEDIALOG_H
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@ -7,7 +7,7 @@
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<x>0</x>
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<y>0</y>
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<width>589</width>
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<height>228</height>
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<height>239</height>
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</rect>
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</property>
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<property name="sizePolicy">
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@ -83,6 +83,21 @@
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</property>
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</widget>
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</item>
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<item row="4" column="1">
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<widget class="QLabel" name="capsLabel">
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<property name="styleSheet">
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<string notr="true">#capsLabel {
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font: bold;
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}</string>
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</property>
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<property name="text">
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<string>TextLabel</string>
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</property>
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<property name="alignment">
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<set>Qt::AlignCenter</set>
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</property>
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</widget>
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</item>
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</layout>
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</item>
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<item>
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