163 lines
4.7 KiB
C++
163 lines
4.7 KiB
C++
/*
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* Strawberry Music Player
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* This file was part of Clementine.
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* Copyright 2010, David Sansome <me@davidsansome.com>
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* Copyright 2018-2021, Jonas Kvinge <jonas@jkvinge.net>
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*
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* Strawberry 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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*
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* Strawberry 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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*
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* You should have received a copy of the GNU General Public License
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* along with Strawberry. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include "config.h"
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#include <chrono>
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#include <QtGlobal>
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#include <QObject>
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#include <QTimer>
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#include <QString>
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#include "core/shared_ptr.h"
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#include "core/networkaccessmanager.h"
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#include "core/song.h"
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#include "albumcoverfetcher.h"
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#include "albumcoverfetchersearch.h"
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using namespace std::chrono_literals;
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const int AlbumCoverFetcher::kMaxConcurrentRequests = 5;
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AlbumCoverFetcher::AlbumCoverFetcher(SharedPtr<CoverProviders> cover_providers, SharedPtr<NetworkAccessManager> network, QObject *parent)
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: QObject(parent),
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cover_providers_(cover_providers),
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network_(network),
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next_id_(0),
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request_starter_(new QTimer(this)) {
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request_starter_->setInterval(1s);
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QObject::connect(request_starter_, &QTimer::timeout, this, &AlbumCoverFetcher::StartRequests);
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}
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AlbumCoverFetcher::~AlbumCoverFetcher() {
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QList<AlbumCoverFetcherSearch*> searches = active_requests_.values();
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for (AlbumCoverFetcherSearch *search : searches) {
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search->disconnect();
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search->deleteLater();
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}
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active_requests_.clear();
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}
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quint64 AlbumCoverFetcher::FetchAlbumCover(const QString &artist, const QString &album, const QString &title, const bool batch) {
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CoverSearchRequest request;
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request.id = ++next_id_;
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request.artist = artist;
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request.album = album;
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request.album = request.album.remove(Song::kAlbumRemoveDisc);
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request.album = request.album.remove(Song::kAlbumRemoveMisc);
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request.title = title;
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request.search = false;
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request.batch = batch;
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AddRequest(request);
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return request.id;
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}
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quint64 AlbumCoverFetcher::SearchForCovers(const QString &artist, const QString &album, const QString &title) {
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CoverSearchRequest request;
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request.id = ++next_id_;
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request.artist = artist;
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request.album = album;
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request.album = request.album.remove(Song::kAlbumRemoveDisc);
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request.album = request.album.remove(Song::kAlbumRemoveMisc);
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request.title = title;
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request.search = true;
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request.batch = false;
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AddRequest(request);
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return request.id;
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}
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void AlbumCoverFetcher::AddRequest(const CoverSearchRequest &req) {
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queued_requests_.enqueue(req);
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if (!request_starter_->isActive()) request_starter_->start();
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if (active_requests_.size() < kMaxConcurrentRequests) StartRequests();
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}
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void AlbumCoverFetcher::Clear() {
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queued_requests_.clear();
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QList<AlbumCoverFetcherSearch*> searches = active_requests_.values();
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for (AlbumCoverFetcherSearch *search : searches) {
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search->Cancel();
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search->deleteLater();
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}
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active_requests_.clear();
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}
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void AlbumCoverFetcher::StartRequests() {
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if (queued_requests_.isEmpty()) {
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request_starter_->stop();
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return;
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}
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while (!queued_requests_.isEmpty() && active_requests_.size() < kMaxConcurrentRequests) {
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CoverSearchRequest request = queued_requests_.dequeue();
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// Search objects are this fetcher's children so worst case scenario - they get deleted with it
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AlbumCoverFetcherSearch *search = new AlbumCoverFetcherSearch(request, network_, this);
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active_requests_.insert(request.id, search);
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QObject::connect(search, &AlbumCoverFetcherSearch::SearchFinished, this, &AlbumCoverFetcher::SingleSearchFinished);
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QObject::connect(search, &AlbumCoverFetcherSearch::AlbumCoverFetched, this, &AlbumCoverFetcher::SingleCoverFetched);
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search->Start(cover_providers_);
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}
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}
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void AlbumCoverFetcher::SingleSearchFinished(const quint64 request_id, const CoverProviderSearchResults &results) {
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if (!active_requests_.contains(request_id)) return;
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AlbumCoverFetcherSearch *search = active_requests_.take(request_id);
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search->deleteLater();
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emit SearchFinished(request_id, results, search->statistics());
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}
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void AlbumCoverFetcher::SingleCoverFetched(const quint64 request_id, const AlbumCoverImageResult &result) {
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if (!active_requests_.contains(request_id)) return;
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AlbumCoverFetcherSearch *search = active_requests_.take(request_id);
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search->deleteLater();
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emit AlbumCoverFetched(request_id, result, search->statistics());
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}
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