[UI] Dynamically launch searches while filling in the field

src/ui/common/LineEdit.cpp

@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2015 Emeric Poupon
+ *
+ * This file is part of LMS.
+ *
+ * LMS 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LMS 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 LMS.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <Wt/WTimer>
+
+#include "LineEdit.hpp"
+
+namespace UserInterface {
+
+
+LineEdit::LineEdit(std::size_t ms, Wt::WContainerWidget* parent)
+: Wt::WLineEdit(parent)
+{
+
+	Wt::WTimer *timer = new Wt::WTimer(this);
+	timer->setSingleShot(true);
+	timer->setInterval(ms);
+
+	this->keyWentUp().connect(std::bind([=] (Wt::WKeyEvent keyEvent)
+	{
+		if (timer->isActive())
+			timer->stop();
+
+		if (keyEvent.key() == Wt::Key_Enter)
+			_sigTimedChanged.emit(this->text());
+		else
+			timer->start();
+	}, std::placeholders::_1));
+
+	timer->timeout().connect(std::bind([=] ()
+	{
+		_sigTimedChanged.emit(this->text());
+	}));
+}
+
+
+} // namespace UserInterface
+
+