[UI] Dynamically launch searches while filling in the field

src/Makefile.am

@@ -47,6 +47,7 @@ lms_SOURCES = \
 	$(srcdir)/ui/audio/TableFilter.cpp			\
 	$(srcdir)/ui/audio/TrackView.cpp			\
 	$(srcdir)/ui/common/DirectoryValidator.cpp		\
+	$(srcdir)/ui/common/LineEdit.cpp			\
 	$(srcdir)/ui/common/SessionData.cpp			\
 	$(srcdir)/ui/resource/AvConvTranscodeStreamResource.cpp	\
 	$(srcdir)/ui/resource/CoverResource.cpp			\

src/ui/LmsApplication.cpp

@@ -30,16 +30,15 @@
 #include <Wt/WLineEdit>
 #include <Wt/Auth/Identity>
 
-#include "settings/Settings.hpp"
-
-#include "auth/LmsAuth.hpp"
-
 #include "logger/Logger.hpp"
 
+#include "settings/Settings.hpp"
 #include "settings/SettingsFirstConnectionFormView.hpp"
 
+#include "auth/LmsAuth.hpp"
 #include "audio/Audio.hpp"
 #include "video/VideoWidget.hpp"
+#include "common/LineEdit.hpp"
 
 #include "LmsApplication.hpp"
 
@@ -133,6 +132,8 @@ LmsApplication::handleAuthEvent(void)
 
 		LMS_LOG(MOD_UI, SEV_NOTICE) << "User '" << user.identity(Wt::Auth::Identity::LoginName) << "' logged in";
 
+		this->root()->setOverflow(Wt::WContainerWidget::OverflowHidden);
+
 		// Create a Vertical layout: top is the nav bar, bottom is the contents
 		Wt::WVBoxLayout *layout = new Wt::WVBoxLayout(this->root());
 		// Create a navigation bar with a link to a web page.
@@ -143,6 +144,8 @@ LmsApplication::handleAuthEvent(void)
 
 		Wt::WStackedWidget *contentsStack = new Wt::WStackedWidget();
 
+		contentsStack->setOverflow(Wt::WContainerWidget::OverflowAuto);
+
 		// Setup a Left-aligned menu.
 		Wt::WMenu *leftMenu = new Wt::WMenu(contentsStack);
 		navigation->addMenu(leftMenu);
@@ -173,10 +176,10 @@ LmsApplication::handleAuthEvent(void)
 		}, std::placeholders::_1));
 
 		// Add a Search control.
-		Wt::WLineEdit *searchEdit = new Wt::WLineEdit();
+		LineEdit *searchEdit = new LineEdit(500);
 		searchEdit->setEmptyText("Search...");
 
-		searchEdit->enterPressed().connect(std::bind([=] ()
+		searchEdit->timedChanged().connect(std::bind([=] ()
 		{
 			// TODO: check which view is activated and search into it
 			audio->search(searchEdit->text().toUTF8());

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
+
+

src/ui/common/LineEdit.hpp

@@ -0,0 +1,44 @@
+/*
+ * 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/>.
+ */
+
+#ifndef UI_LINE_EDIT_HPP
+#define UI_LINE_EDIT_HPP
+
+#include <Wt/WLineEdit>
+#include <Wt/WContainerWidget>
+#include <Wt/WSignal>
+
+namespace UserInterface {
+
+class LineEdit : public Wt::WLineEdit
+{
+	public:
+		LineEdit(std::size_t ms, Wt::WContainerWidget* parent = 0);
+
+		Wt::Signal<Wt::WString>&	timedChanged() { return _sigTimedChanged; }
+
+	private:
+
+		Wt::Signal<Wt::WString>		_sigTimedChanged;
+};
+
+} // namespace UserInterface
+
+#endif
+