1 files changed, 106 insertions, 0 deletions
diff --git a/ui/qt/widgets/dissector_syntax_line_edit.cpp b/ui/qt/widgets/dissector_syntax_line_edit.cpp
new file mode 100644
index 0000000..ae8a224
--- /dev/null
+++ b/ui/qt/widgets/dissector_syntax_line_edit.cpp
@@ -0,0 +1,106 @@
+/* dissector_syntax_line_edit.cpp
+ *
+ * Wireshark - Network traffic analyzer
+ * By Gerald Combs <gerald@wireshark.org>
+ * Copyright 1998 Gerald Combs
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#include "config.h"
+
+#include <glib.h>
+
+#include <epan/packet.h>
+
+#include <wsutil/utf8_entities.h>
+
+#include <ui/qt/widgets/dissector_syntax_line_edit.h>
+#include <ui/qt/widgets/syntax_line_edit.h>
+
+#include <QAction>
+#include <QCompleter>
+#include <QEvent>
+#include <QStringListModel>
+
+#include <wsutil/utf8_entities.h>
+
+// Ordinary dissector names allow the same characters as display filter
+// fields (heuristic dissectors don't allow upper-case.)
+static const QString fld_abbrev_chars_ = "-.0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz";
+
+DissectorSyntaxLineEdit::DissectorSyntaxLineEdit(QWidget *parent) :
+    SyntaxLineEdit(parent)
+{
+    setAccessibleName(tr("Dissector entry"));
+
+    completion_model_ = new QStringListModel(this);
+    setCompleter(new QCompleter(completion_model_, this));
+    setCompletionTokenChars(fld_abbrev_chars_);
+
+    GList *dissector_names = get_dissector_names();
+    QStringList dissector_list;
+    for (GList* l = dissector_names; l != NULL; l = l->next) {
+        dissector_list << (const char*) l->data;
+    }
+    g_list_free(dissector_names);
+    dissector_list.sort();
+    completion_model_->setStringList(dissector_list);
+    setDefaultPlaceholderText();
+
+    connect(this, &DissectorSyntaxLineEdit::textChanged, this,
+            static_cast<void (DissectorSyntaxLineEdit::*)(const QString &)>(&DissectorSyntaxLineEdit::checkDissectorName));
+}
+
+void DissectorSyntaxLineEdit::setDefaultPlaceholderText()
+{
+    placeholder_text_ = QString(tr("Enter a dissector %1")).arg(UTF8_HORIZONTAL_ELLIPSIS);
+
+    setPlaceholderText(placeholder_text_);
+}
+
+void DissectorSyntaxLineEdit::checkDissectorName(const QString &dissector)
+{
+    if (dissector.isEmpty()) {
+        setSyntaxState(SyntaxLineEdit::Empty);
+    } else if (find_dissector(dissector.trimmed().toUtf8().constData())) {
+        setSyntaxState(SyntaxLineEdit::Valid);
+    } else {
+        setSyntaxState(SyntaxLineEdit::Invalid);
+    }
+}
+
+void DissectorSyntaxLineEdit::buildCompletionList(const QString &field_word, const QString &preamble _U_)
+{
+#if 0
+    // It would be nice to push a hint about the current dissector with
+    // the description, as we do with the status line in the main window
+    // with filters.
+    if (syntaxState() == Valid) {
+        dissector_handle_t handle = find_dissector(field_word.toUtf8().constData());
+        if (handle) {
+            QString cursor_field_msg = QString("%1: %2")
+                    .arg(dissector_handle_get_dissector_name(handle))
+                    .arg(dissector_handle_get_description(handle));
+        }
+    }
+#endif
+
+    completer()->setCompletionPrefix(field_word);
+}
+
+void DissectorSyntaxLineEdit::changeEvent(QEvent* event)
+{
+    if (0 != event)
+    {
+        switch (event->type())
+        {
+        case QEvent::LanguageChange:
+            setDefaultPlaceholderText();
+            break;
+        default:
+            break;
+        }
+    }
+    SyntaxLineEdit::changeEvent(event);
+}