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82 lines
2.2 KiB
C++
82 lines
2.2 KiB
C++
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/* This file is (c) 2008-2009 Konstantin Isakov <ikm@users.sf.net>
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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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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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QNetworkAccessManager( parent ), dictionaries( dictionaries_ ),
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articleMaker( articleMaker_ )
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{}
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/// Tries reading a resource referenced by a "bres://" url. If it succeeds,
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/// the vector is filled with data, and true is returned. If it doesn't
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/// succeed, it returns false. The function can optionally set the Content-Type
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/// header correspondingly.
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bool getResource( QUrl const & url, vector< char > & data,
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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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vector< char > data;
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size_t left;
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public:
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ArticleResourceReply( QObject * parent,
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QNetworkRequest const &,
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vector< char > const & data,
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QString const & contentType );
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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 readyReadSlot();
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void finishedSlot();
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};
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#endif
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