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119 lines
3 KiB
C++
119 lines
3 KiB
C++
/* This file is (c) 2008-2012 Konstantin Isakov <ikm@goldendict.org>
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* Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */
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#ifndef __ARTICLE_NETMGR_HH_INCLUDED__
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#define __ARTICLE_NETMGR_HH_INCLUDED__
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#include <QtNetwork>
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#include "dictionary.hh"
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#include "article_maker.hh"
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using std::vector;
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/// A custom QNetworkAccessManager version which fetches images from the
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/// dictionaries when requested.
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class ArticleNetworkAccessManager: public QNetworkAccessManager
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{
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vector< sptr< Dictionary::Class > > const & dictionaries;
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ArticleMaker const & articleMaker;
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bool const & disallowContentFromOtherSites;
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public:
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ArticleNetworkAccessManager( QObject * parent,
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vector< sptr< Dictionary::Class > > const &
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dictionaries_,
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ArticleMaker const & articleMaker_,
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bool const & disallowContentFromOtherSites_ ):
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QNetworkAccessManager( parent ), dictionaries( dictionaries_ ),
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articleMaker( articleMaker_ ),
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disallowContentFromOtherSites( disallowContentFromOtherSites_ )
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{}
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/// Tries handling any kind of internal resources referenced by dictionaries.
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/// If it succeeds, the result is a dictionary request object. Otherwise, an
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/// empty pointer is returned.
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/// The function can optionally set the Content-Type header correspondingly.
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sptr< Dictionary::DataRequest > getResource( QUrl const & url,
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QString & contentType );
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protected:
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virtual QNetworkReply * createRequest( Operation op,
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QNetworkRequest const & req,
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QIODevice * outgoingData );
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};
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class ArticleResourceReply: public QNetworkReply
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{
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Q_OBJECT
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sptr< Dictionary::DataRequest > req;
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size_t alreadyRead;
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public:
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ArticleResourceReply( QObject * parent,
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QNetworkRequest const &,
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sptr< Dictionary::DataRequest > const &,
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QString const & contentType );
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~ArticleResourceReply();
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protected:
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virtual qint64 bytesAvailable() const;
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virtual void abort()
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{}
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virtual qint64 readData( char * data, qint64 maxSize );
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// We use the hackery below to work around the fact that we need to emit
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// ready/finish signals after we've been constructed.
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signals:
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void readyReadSignal();
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void finishedSignal();
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private slots:
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void reqUpdated();
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void reqFinished();
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void readyReadSlot();
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void finishedSlot();
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};
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class BlockedNetworkReply: public QNetworkReply
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{
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Q_OBJECT
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public:
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BlockedNetworkReply( QObject * parent );
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virtual qint64 readData( char *, qint64 )
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{
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return -1;
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}
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virtual void abort()
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{}
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protected:
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// We use the hackery below to work around the fact that we need to emit
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// ready/finish signals after we've been constructed.
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signals:
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void finishedSignal();
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private slots:
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void finishedSlot();
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};
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#endif
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