1 files changed, 181 insertions, 0 deletions
diff --git a/ui/qt/apply_line_edit.cpp b/ui/qt/apply_line_edit.cpp
new file mode 100644
index 0000000000..2e2acc7454
--- /dev/null
+++ b/ui/qt/apply_line_edit.cpp
@@ -0,0 +1,181 @@
+/* apply_lineedit.cpp
+ *
+ * Wireshark - Network traffic analyzer
+ * By Gerald Combs <gerald@wireshark.org>
+ * Copyright 1998 Gerald Combs
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <ui/qt/apply_line_edit.h>
+
+#include <epan/prefs.h>
+
+#include <ui/qt/color_utils.h>
+
+#include <QRegExp>
+#include <QRegExpValidator>
+#include <QStyle>
+
+ApplyLineEdit::ApplyLineEdit(QString linePlaceholderText, QWidget * parent)
+: QLineEdit(parent),
+  applyButton(0)
+{
+    emptyAllowed_ = false;
+    regex_ = QString();
+
+    applyButton = new StockIconToolButton(parent, "x-filter-apply");
+    applyButton->setCursor(Qt::ArrowCursor);
+    applyButton->setEnabled(false);
+    applyButton->setToolTip(tr("Apply changes"));
+    applyButton->setIconSize(QSize(24, 14));
+    applyButton->setMaximumWidth(30);
+    applyButton->setStyleSheet(
+            "QToolButton {"
+            "  border: none;"
+            "  background: transparent;" // Disables platform style on Windows.
+            "  padding: 0 0 0 0;"
+            "}"
+            );
+
+#ifdef Q_OS_MAC
+    setAttribute(Qt::WA_MacSmallSize, true);
+    applyButton->setAttribute(Qt::WA_MacSmallSize, true);
+#endif
+
+    setPlaceholderText(linePlaceholderText);
+
+    connect(this, SIGNAL(textEdited(const QString&)), this, SLOT(onTextEdited(const QString&)));
+    connect(this, SIGNAL(textChanged(const QString&)), this, SLOT(onTextChanged(const QString&)));
+
+    connect(this, SIGNAL(returnPressed()), this, SLOT(onSubmitContent()));
+    connect(applyButton, SIGNAL(clicked()), this, SLOT(onSubmitContent()));
+
+    handleValidation(QString(linePlaceholderText));
+
+    setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::Fixed);
+}
+
+ApplyLineEdit::~ApplyLineEdit() {}
+
+void ApplyLineEdit::setRegEx(QString regex)
+{
+    regex_ = regex;
+}
+
+QString ApplyLineEdit::regex()
+{
+    return regex_;
+}
+
+void ApplyLineEdit::setEmptyAllowed(bool emptyAllowed)
+{
+    emptyAllowed_ = emptyAllowed;
+}
+
+bool ApplyLineEdit::emptyAllowed()
+{
+    return emptyAllowed_;
+}
+
+bool ApplyLineEdit::isValidText(QString & text, bool ignoreEmptyCheck)
+{
+    if ( text.length() == 0 )
+    {
+        if ( ! ignoreEmptyCheck && ! emptyAllowed_ )
+            return false;
+        else if ( ignoreEmptyCheck )
+            return true;
+    }
+
+    if ( regex_.length() > 0 )
+    {
+        QRegExp rx ( regex_ );
+        QRegExpValidator v(rx, 0);
+
+        int pos = 0;
+        if ( ! rx.isValid() || v.validate(text, pos) != QValidator::Acceptable )
+            return false;
+    }
+
+    return true;
+}
+
+void ApplyLineEdit::onTextEdited(const QString & text)
+{
+    QString newText = QString(text);
+    applyButton->setEnabled(isValidText(newText));
+    handleValidation(newText);
+}
+
+void ApplyLineEdit::onTextChanged(const QString & text)
+{
+    handleValidation(QString(text));
+}
+
+void ApplyLineEdit::handleValidation(QString newText)
+{
+    int frameWidth = style()->pixelMetric(QStyle::PM_DefaultFrameWidth);
+
+    QString style_sheet = QString(
+            "ApplyLineEdit {"
+            "  padding-left: %1px;"
+            "  padding-right: %2px;"
+            "  background-color: %3;"
+            "}"
+            )
+            .arg(frameWidth + 1)
+            .arg(applyButton->sizeHint().width() + frameWidth)
+            .arg(isValidText(newText, true) ? QString("") : ColorUtils::fromColorT(prefs.gui_text_invalid).name());
+
+    setStyleSheet(style_sheet);
+}
+
+void ApplyLineEdit::resizeEvent(QResizeEvent *)
+{
+    int frameWidth = style()->pixelMetric(QStyle::PM_DefaultFrameWidth);
+    QSize apsz = applyButton->sizeHint();
+
+    applyButton->move((contentsRect().right() + pos().x()) - ( frameWidth + apsz.width() ) - 2,
+                        contentsRect().top() + pos().y());
+
+    applyButton->setMinimumHeight(height());
+    applyButton->setMaximumHeight(height());
+}
+
+void ApplyLineEdit::onSubmitContent()
+{
+    QString data = text();
+    if ( ! isValidText(data) )
+        return;
+
+    /* Freeze apply button to signal the text has been sent. Will be unfreezed, if the text in the textbox changes again */
+    applyButton->setEnabled(false);
+
+    emit textApplied();
+}
+
+/*
+ * Editor modelines
+ *
+ * Local Variables:
+ * c-basic-offset: 4
+ * tab-width: 8
+ * indent-tabs-mode: nil
+ * End:
+ *
+ * ex: set shiftwidth=4 tabstop=8 expandtab:
+ * :indentSize=4:tabSize=8:noTabs=true:
+ */