diff options
| -rw-r--r-- | src/qt/askpassphrasedialog.cpp | 53 | ||||
| -rw-r--r-- | src/qt/askpassphrasedialog.h | 3 | ||||
| -rw-r--r-- | src/qt/forms/askpassphrasedialog.ui | 17 |
3 files changed, 71 insertions, 2 deletions
diff --git a/src/qt/askpassphrasedialog.cpp b/src/qt/askpassphrasedialog.cpp index 24f622d637..f516169460 100644 --- a/src/qt/askpassphrasedialog.cpp +++ b/src/qt/askpassphrasedialog.cpp @@ -6,17 +6,25 @@ #include <QMessageBox> #include <QPushButton> +#include <QKeyEvent> AskPassphraseDialog::AskPassphraseDialog(Mode mode, QWidget *parent) : QDialog(parent), ui(new Ui::AskPassphraseDialog), mode(mode), - model(0) + model(0), + fCapsLock(false) { ui->setupUi(this); ui->passEdit1->setMaxLength(MAX_PASSPHRASE_SIZE); ui->passEdit2->setMaxLength(MAX_PASSPHRASE_SIZE); ui->passEdit3->setMaxLength(MAX_PASSPHRASE_SIZE); + + // Setup Caps Lock detection. + ui->passEdit1->installEventFilter(this); + ui->passEdit2->installEventFilter(this); + ui->passEdit3->installEventFilter(this); + ui->capsLabel->clear(); switch(mode) { @@ -188,3 +196,46 @@ void AskPassphraseDialog::textChanged() } ui->buttonBox->button(QDialogButtonBox::Ok)->setEnabled(acceptable); } + +bool AskPassphraseDialog::event(QEvent *event) +{ + // Detect Caps Lock key press. + if (event->type() == QEvent::KeyPress) { + QKeyEvent *ke = static_cast<QKeyEvent *>(event); + if (ke->key() == Qt::Key_CapsLock) { + fCapsLock = !fCapsLock; + } + if (fCapsLock) { + ui->capsLabel->setText(tr("Warning: The Caps Lock key is on.")); + } else { + ui->capsLabel->clear(); + } + } + return QWidget::event(event); +} + +bool AskPassphraseDialog::eventFilter(QObject *, QEvent *event) +{ + /* Detect Caps Lock. + * There is no good OS-independent way to check a key state in Qt, but we + * can detect Caps Lock by checking for the following condition: + * Shift key is down and the result is a lower case character, or + * Shift key is not down and the result is an upper case character. + */ + if (event->type() == QEvent::KeyPress) { + QKeyEvent *ke = static_cast<QKeyEvent *>(event); + QString str = ke->text(); + if (str.length() != 0) { + const QChar *psz = str.unicode(); + bool fShift = (ke->modifiers() & Qt::ShiftModifier) != 0; + if ((fShift && psz->isLower()) || (!fShift && psz->isUpper())) { + fCapsLock = true; + ui->capsLabel->setText(tr("Warning: The Caps Lock key is on.")); + } else if (psz->isLetter()) { + fCapsLock = false; + ui->capsLabel->clear(); + } + } + } + return false; +} diff --git a/src/qt/askpassphrasedialog.h b/src/qt/askpassphrasedialog.h index 32a3f6a5f3..b500ff49bf 100644 --- a/src/qt/askpassphrasedialog.h +++ b/src/qt/askpassphrasedialog.h @@ -34,9 +34,12 @@ private: Ui::AskPassphraseDialog *ui; Mode mode; WalletModel *model; + bool fCapsLock; private slots: void textChanged(); + bool event(QEvent *event); + bool eventFilter(QObject *, QEvent *event); }; #endif // ASKPASSPHRASEDIALOG_H diff --git a/src/qt/forms/askpassphrasedialog.ui b/src/qt/forms/askpassphrasedialog.ui index 70d9180e75..f1f2ef3731 100644 --- a/src/qt/forms/askpassphrasedialog.ui +++ b/src/qt/forms/askpassphrasedialog.ui @@ -7,7 +7,7 @@ <x>0</x> <y>0</y> <width>589</width> - <height>228</height> + <height>239</height> </rect> </property> <property name="sizePolicy"> @@ -83,6 +83,21 @@ </property> </widget> </item> + <item row="4" column="1"> + <widget class="QLabel" name="capsLabel"> + <property name="styleSheet"> + <string notr="true">#capsLabel { + font: bold; +}</string> + </property> + <property name="text"> + <string>TextLabel</string> + </property> + <property name="alignment"> + <set>Qt::AlignCenter</set> + </property> + </widget> + </item> </layout> </item> <item> |