Clementine-audio-player-Mac.../src/devices/mtploader.cpp

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/* This file is part of Clementine.
Copyright 2010, David Sansome <me@davidsansome.com>
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Clementine 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.
Clementine 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 Clementine. If not, see <http://www.gnu.org/licenses/>.
*/
#include "mtploader.h"
#include <libmtp.h>
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#include "connecteddevice.h"
#include "core/song.h"
#include "core/taskmanager.h"
#include "library/librarybackend.h"
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#include "mtpconnection.h"
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MtpLoader::MtpLoader(const QUrl& url, TaskManager* task_manager,
std::shared_ptr<LibraryBackend> backend,
std::shared_ptr<ConnectedDevice> device)
: QObject(nullptr),
device_(device),
url_(url),
task_manager_(task_manager),
backend_(backend) {
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original_thread_ = thread();
}
MtpLoader::~MtpLoader() {}
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void MtpLoader::LoadDatabase() {
int task_id = task_manager_->StartTask(tr("Loading MTP device"));
emit TaskStarted(task_id);
bool success = TryLoad();
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moveToThread(original_thread_);
task_manager_->SetTaskFinished(task_id);
emit LoadFinished(success);
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}
bool MtpLoader::TryLoad() {
MtpConnection dev(url_);
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if (!dev.is_valid()) {
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emit Error(tr("Error connecting MTP device"));
return false;
}
// Load the list of songs on the device
SongList songs;
LIBMTP_track_t* tracks =
LIBMTP_Get_Tracklisting_With_Callback(dev.device(), nullptr, nullptr);
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while (tracks) {
LIBMTP_track_t* track = tracks;
Song song;
song.InitFromMTP(track, url_.host());
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song.set_directory_id(1);
songs << song;
tracks = tracks->next;
LIBMTP_destroy_track_t(track);
}
// Need to remove all the existing songs in the database first
backend_->DeleteSongs(backend_->FindSongsInDirectory(1));
// Add the songs we've just loaded
backend_->AddOrUpdateSongs(songs);
return true;
}