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135 wiersze
3.3 KiB
135 wiersze
3.3 KiB
/* This file is part of the KDE project
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*
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* Copyright (C) 2000 Waldo Bastian <bastian@kde.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __tdehtml_pagecache_h__
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#define __tdehtml_pagecache_h__
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#include <tqobject.h>
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#include <tqcstring.h>
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#include <tqvaluelist.h>
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#include <tqptrlist.h>
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class TDEHTMLPageCachePrivate;
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/**
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* Singleton Object that handles a binary cache on top of
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* the http cache management of kio.
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*
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* A limited number of HTML pages are stored in this cache. This
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* cache is used for the history and operations like "view source".
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* These operations always want to use the original document and
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* don't want to fetch the data from the network again.
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*
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* It operates completely independent from the tdeio_http cache.
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*/
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class TDEHTMLPageCache : public TQObject
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{
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Q_OBJECT
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public:
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/**
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* static "constructor".
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* @return returns a pointer to the cache, if it exists.
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* creates a new cache otherwise.
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*/
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static TDEHTMLPageCache *self();
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~TDEHTMLPageCache();
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/**
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* Create a new cache entry.
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*
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* @return a cache entry ID is returned.
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*/
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long createCacheEntry();
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/**
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* Add @p data to the cache entry with id @p id.
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*/
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void addData(long id, const TQByteArray &data);
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/**
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* Signal end of data for the cache entry with id @p id.
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* After calling this the entry is marked complete
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*/
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void endData(long id);
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/**
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* Cancel the entry.
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*/
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void cancelEntry(long id);
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/**
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* @return true when the cache entry with id @p is still valid,
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* and at least some of the data is available for reading (the
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* complete data may not yet be loaded)
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*/
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bool isValid(long id);
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/**
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* @return true when the cache entry with id @p is still valid,
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* and the complete data is available for reading
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*/
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bool isComplete(long id);
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/**
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* Fetch data for cache entry @p id and send it to slot @p recvSlot
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* in the object @p recvObj
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*/
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void fetchData(long id, TQObject *recvObj, const char *recvSlot);
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/**
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* Cancel sending data to @p recvObj
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*/
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void cancelFetch(TQObject *recvObj);
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/**
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* Save the data of cache entry @p id to the datastream @p str
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*/
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void saveData(long id, TQDataStream *str);
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private slots:
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void sendData();
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private:
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TDEHTMLPageCache();
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static TDEHTMLPageCache *_self;
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TDEHTMLPageCachePrivate *d;
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};
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class TDEHTMLPageCacheDelivery : public TQObject
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{
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friend class TDEHTMLPageCache;
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Q_OBJECT
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public:
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TDEHTMLPageCacheDelivery(int _fd)
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: fd(_fd) { }
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~TDEHTMLPageCacheDelivery();
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signals:
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void emitData(const TQByteArray &data);
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public:
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TQObject *recvObj;
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int fd;
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};
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#endif
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