124 lines
3.1 KiB
C++
124 lines
3.1 KiB
C++
/* This file is part of Clementine.
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Copyright 2010-2011, David Sansome <me@davidsansome.com>
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Copyright 2014, Krzysztof Sobiecki <sobkas@gmail.com>
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Copyright 2014, John Maguire <john.maguire@gmail.com>
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Clementine is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Clementine is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Clementine. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "deletefiles.h"
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#include <QStringList>
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#include <QThread>
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#include <QTimer>
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#include <QUrl>
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#include "musicstorage.h"
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#include "taskmanager.h"
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const int DeleteFiles::kBatchSize = 50;
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DeleteFiles::DeleteFiles(TaskManager* task_manager,
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std::shared_ptr<MusicStorage> storage)
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: thread_(nullptr),
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task_manager_(task_manager),
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storage_(storage),
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started_(false),
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task_id_(0),
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progress_(0) {
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original_thread_ = thread();
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}
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DeleteFiles::~DeleteFiles() {}
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void DeleteFiles::Start(const SongList& songs) {
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if (thread_) return;
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songs_ = songs;
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task_id_ = task_manager_->StartTask(tr("Deleting files"));
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task_manager_->SetTaskBlocksLibraryScans(task_id_);
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thread_ = new QThread;
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connect(thread_, SIGNAL(started()), SLOT(ProcessSomeFiles()));
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moveToThread(thread_);
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thread_->start();
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}
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void DeleteFiles::Start(const QUrl& url) {
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SongList songs;
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Song song;
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song.set_url(url);
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songs << song;
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Start(songs);
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}
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void DeleteFiles::Start(const QStringList& filenames) {
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SongList songs;
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for (const QString& filename : filenames) {
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Song song;
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song.set_url(QUrl::fromLocalFile(filename));
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songs << song;
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}
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Start(songs);
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}
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void DeleteFiles::ProcessSomeFiles() {
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if (!started_) {
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storage_->StartDelete();
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started_ = true;
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}
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// None left?
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if (progress_ >= songs_.count()) {
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task_manager_->SetTaskProgress(task_id_, progress_, songs_.count());
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storage_->FinishCopy(songs_with_errors_.isEmpty());
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task_manager_->SetTaskFinished(task_id_);
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emit Finished(songs_with_errors_);
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// Move back to the original thread so deleteLater() can get called in
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// the main thread's event loop
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moveToThread(original_thread_);
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deleteLater();
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// Stop this thread
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thread_->quit();
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return;
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}
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// We process files in batches so we can be cancelled part-way through.
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const int n = qMin(songs_.count(), progress_ + kBatchSize);
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for (; progress_ < n; ++progress_) {
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task_manager_->SetTaskProgress(task_id_, progress_, songs_.count());
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const Song& song = songs_[progress_];
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MusicStorage::DeleteJob job;
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job.metadata_ = song;
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if (!storage_->DeleteFromStorage(job)) {
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songs_with_errors_ << song;
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}
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}
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QTimer::singleShot(0, this, SLOT(ProcessSomeFiles()));
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}
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