From dd3ee3821fb6ebab9d1b0858e357ad110822d7e1 Mon Sep 17 00:00:00 2001
From: Simon Rettberg
Date: Thu, 18 Apr 2019 15:55:48 +0200
Subject: Add caps lock warning

---
 src/loginform.cpp | 47 ++++++++++++++++++++++++++++++++++++++++-------
 1 file changed, 40 insertions(+), 7 deletions(-)

(limited to 'src/loginform.cpp')

diff --git a/src/loginform.cpp b/src/loginform.cpp
index b8db5cf..5faa617 100644
--- a/src/loginform.cpp
+++ b/src/loginform.cpp
@@ -7,6 +7,18 @@
 * It is distributed under the LGPL 2.1 or later license.
 * Please refer to the LICENSE file for a copy of the license.
 */
+
+#include "loginform.h"
+#include "ui_loginform.h"
+#include "settings.h"
+#include "global.h"
+#include "namereplace.h"
+#include "x11util.h"
+#undef KeyPress
+#undef KeyRelease
+#undef FocusIn
+#undef FocusOut
+
 #include <QAbstractListModel>
 #include <QModelIndex>
 #include <QPixmap>
@@ -15,19 +27,15 @@
 #include <QMenu>
 #include <QListView>
 #include <QSvgRenderer>
+#include <QX11Info>
 
 #include <iostream>
 
-#include "loginform.h"
-#include "ui_loginform.h"
-#include "settings.h"
-#include "global.h"
-#include "namereplace.h"
-
 LoginForm::LoginForm(QWidget *parent) :
     QWidget(parent), 
     ui(new Ui::LoginForm),
-    clearMsg(false)
+    clearMsg(false),
+    capsOn(-1)
 {
     ui->setupUi(this);
     initialize();
@@ -101,6 +109,24 @@ void LoginForm::initialize()
     ui->leaveComboBox->setDisabled(ui->leaveComboBox->count() <= 1);
     ui->passwordInput->clear();
     this->layout()->setSizeConstraint(QLayout::SetFixedSize);
+    this->installEventFilter(this);
+    checkCaps();
+}
+
+void LoginForm::checkCaps()
+{
+    unsigned int mask = getKeyMask(QX11Info::display());
+    int caps = (mask & 1) == 1;
+    if (caps != capsOn) {
+        capsOn = caps;
+        QString message(tr("!! CAPS LOCK ACTIVE !!"));
+        if (caps) {
+            ui->messageLabel->setProperty("caps", message);
+            showMessage(message, false);
+        } else if (ui->messageLabel->property("caps").toString() == message) {
+            hideMessage();
+        }
+    }
 }
 
 void LoginForm::startAuthentication()
@@ -241,3 +267,10 @@ void LoginForm::keyPressEvent(QKeyEvent *event)
     QWidget::keyPressEvent(event);
 }
 
+bool LoginForm::eventFilter(QObject *object, QEvent *event)
+{
+    if (event->type() == QEvent::KeyRelease) {
+        checkCaps();
+    }
+    return false;
+}
-- 
cgit v1.2.3-55-g7522