fdfe52efe2
- use load() to start loading - the FetchNextUnless class is useful in more spots in the loading process - set status explicitly on success (otherwise, a failure in a previous URL would leave a failure message lying around even when the module shows something useful)
78 lines
2.0 KiB
C++
78 lines
2.0 KiB
C++
/*
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* SPDX-FileCopyrightText: 2016 Luca Giambonini <almack@chakraos.org>
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* SPDX-FileCopyrightText: 2016 Lisa Vitolo <shainer@chakraos.org>
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* SPDX-FileCopyrightText: 2017 Kyle Robbertze <krobbertze@gmail.com>
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* SPDX-FileCopyrightText: 2017-2018 2020, Adriaan de Groot <groot@kde.org>
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* SPDX-License-Identifier: GPL-3.0-or-later
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*
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* Calamares is Free Software: see the License-Identifier above.
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*
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*/
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#ifndef NETINSTALL_LOADERQUEUE_H
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#define NETINSTALL_LOADERQUEUE_H
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#include <QQueue>
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#include <QUrl>
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#include <QVariantList>
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class Config;
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class QNetworkReply;
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/** @brief Data about an entry in *groupsUrl*
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*
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* This can be a specific URL, or "local" which uses data stored
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* in the configuration file itself.
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*/
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struct SourceItem
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{
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QUrl url;
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QVariantList data;
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bool isUrl() const { return url.isValid(); }
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bool isLocal() const { return !data.isEmpty(); }
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bool isValid() const { return isUrl() || isLocal(); }
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/** @brief Create a SourceItem
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*
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* If the @p groupsUrl is @c "local" then the *groups* key in
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* the @p configurationMap is used as the source; otherwise the
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* string is used as an actual URL.
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*/
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static SourceItem makeSourceItem( const QString& groupsUrl, const QVariantMap& configurationMap );
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};
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/** @brief Queue of source items to load
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*
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* Queue things up by calling append() and then kick things off
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* by calling load(). This will try to load the items, in order;
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* the first one that succeeds will end the loading process.
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*
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* Signal done() is emitted when done (also when all of the items fail).
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*/
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class LoaderQueue : public QObject
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{
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Q_OBJECT
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public:
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LoaderQueue( Config* parent );
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void append( SourceItem&& i );
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int count() const { return m_queue.count(); }
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public Q_SLOTS:
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void load();
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void fetchNext();
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void fetch( const QUrl& url );
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void dataArrived();
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Q_SIGNALS:
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void done();
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private:
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QQueue< SourceItem > m_queue;
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Config* m_config = nullptr;
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QNetworkReply* m_reply = nullptr;
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};
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#endif
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