Reorganized the UI/xml part to better handle next steps

src/ui/explore/TracksView.cpp

@@ -0,0 +1,168 @@
+/*
+ * Copyright (C) 2018 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/WAnchor>
+#include <Wt/WImage>
+#include <Wt/WLineEdit>
+#include <Wt/WText>
+
+#include "database/Types.hpp"
+
+#include "utils/Logger.hpp"
+#include "utils/Utils.hpp"
+
+#include "LmsApplication.hpp"
+#include "Filters.hpp"
+#include "TracksView.hpp"
+
+namespace UserInterface {
+
+using namespace Database;
+
+Tracks::Tracks(Filters* filters, Wt::WContainerWidget* parent)
+: Wt::WContainerWidget(parent),
+	_filters(filters)
+{
+	auto container = new Wt::WTemplate(Wt::WString::tr("Lms.Explore.Tracks.template"), this);
+	container->addFunction("tr", &Wt::WTemplate::Functions::tr);
+
+	_search = new Wt::WLineEdit();
+	container->bindWidget("search", _search);
+	_search->setPlaceholderText(Wt::WString::tr("Lms.Explore.search-placeholder"));
+	_search->textInput().connect(this, &Tracks::refresh);
+
+	auto playBtn = new Wt::WText(Wt::WString::tr("Lms.Explore.Tracks.play"), Wt::XHTMLText);
+	container->bindWidget("play-btn", playBtn);
+	playBtn->clicked().connect(std::bind([=]
+	{
+		Wt::Dbo::Transaction transaction(DboSession());
+		tracksPlay.emit(getTracks());
+	}));
+
+	auto addBtn = new Wt::WText(Wt::WString::tr("Lms.Explore.Tracks.add"), Wt::XHTMLText);
+	container->bindWidget("add-btn", addBtn);
+	addBtn->clicked().connect(std::bind([=]
+	{
+		Wt::Dbo::Transaction transaction(DboSession());
+		tracksAdd.emit(getTracks());
+	}));
+
+	_tracksContainer = new Wt::WContainerWidget();
+	container->bindWidget("tracks", _tracksContainer);
+
+	_showMore = new Wt::WTemplate(Wt::WString::tr("Lms.Explore.template.show-more"));
+	_showMore->addFunction("tr", &Wt::WTemplate::Functions::tr);
+	container->bindWidget("show-more", _showMore);
+
+	_showMore->clicked().connect(std::bind([=]
+	{
+		addSome();
+	}));
+
+	refresh();
+
+	filters->updated().connect(this, &Tracks::refresh);
+}
+
+std::vector<Database::Track::pointer>
+Tracks::getTracks(int offset, int size, bool& moreResults)
+{
+	auto searchKeywords = splitString(_search->text().toUTF8(), " ");
+	auto clusterIds = _filters->getClusterIds();
+
+	Wt::Dbo::Transaction transaction(DboSession());
+
+	return Track::getByFilter(DboSession(), clusterIds, searchKeywords, offset, size, moreResults);
+}
+
+std::vector<Database::Track::pointer>
+Tracks::getTracks()
+{
+	bool moreResults;
+	return getTracks(-1, -1, moreResults);
+}
+
+void
+Tracks::refresh()
+{
+	_tracksContainer->clear();
+	addSome();
+}
+
+void
+Tracks::addSome()
+{
+	Wt::Dbo::Transaction transaction(DboSession());
+
+	bool moreResults;
+	auto tracks = getTracks(_tracksContainer->count(), 20, moreResults);
+
+	for (auto track : tracks)
+	{
+		auto trackId = track.id();
+		Wt::WTemplate* entry = new Wt::WTemplate(Wt::WString::tr("Lms.Explore.Tracks.template.entry"), _tracksContainer);
+
+		entry->bindString("name", Wt::WString::fromUTF8(track->getName()), Wt::PlainText);
+
+		auto artist = track->getArtist();
+		if (artist)
+		{
+			entry->setCondition("if-has-artist", true);
+			Wt::WAnchor *artistAnchor = LmsApplication::createArtistAnchor(track->getArtist().id());
+			Wt::WText *artistText = new Wt::WText(artistAnchor);
+			artistText->setText(Wt::WString::fromUTF8(artist->getName(), Wt::PlainText));
+			entry->bindWidget("artist-name", artistAnchor);
+		}
+
+		auto release = track->getRelease();
+		if (release)
+		{
+			entry->setCondition("if-has-release", true);
+			Wt::WAnchor *releaseAnchor = LmsApplication::createReleaseAnchor(track->getRelease().id());
+			Wt::WText *releaseText = new Wt::WText(releaseAnchor);
+			releaseText->setText(Wt::WString::fromUTF8(release->getName(), Wt::PlainText));
+			entry->bindWidget("release-name", releaseAnchor);
+		}
+
+		Wt::WImage *cover = new Wt::WImage();
+		cover->setImageLink(LmsApp->getImageResource()->getTrackUrl(track.id(), 64));
+		// Some images may not be square
+		cover->setWidth(64);
+		entry->bindWidget("cover", cover);
+
+		auto playBtn = new Wt::WText(Wt::WString::tr("Lms.Explore.Tracks.play"), Wt::XHTMLText);
+		entry->bindWidget("play-btn", playBtn);
+		playBtn->clicked().connect(std::bind([=]
+		{
+			trackPlay.emit(trackId);
+		}));
+
+		auto addBtn = new Wt::WText(Wt::WString::tr("Lms.Explore.Tracks.add"), Wt::XHTMLText);
+		entry->bindWidget("add-btn", addBtn);
+		addBtn->clicked().connect(std::bind([=]
+		{
+			trackAdd.emit(trackId);
+		}));
+	}
+
+	_showMore->setHidden(!moreResults);
+}
+
+} // namespace UserInterface
+