kio Library API Documentation

KURIFilter Class Reference

Manages the filtering of a URI. Filters a given URL into its proper format whenever possible. More...

#include <kurifilter.h>

List of all members.

Public Member Functions

 ~KURIFilter ()
 Destructor.

bool filterURI (KURIFilterData &data, const QStringList &filters=QStringList())
 Filters the URI given by the object URIFilterData.

bool filterURI (KURL &uri, const QStringList &filters=QStringList())
 Filters the URI given by the URL.

bool filterURI (QString &uri, const QStringList &filters=QStringList())
 Filters a string representing a URI.

KURL filteredURI (const KURL &uri, const QStringList &filters=QStringList())
 Returns the filtered URI.

QString filteredURI (const QString &uri, const QStringList &filters=QStringList())
 Return a filtered string representation of a URI.

QPtrListIterator< KURIFilterPluginpluginsIterator () const
 Return an iterator to iterate over all loaded plugins.

QStringList pluginNames () const
 Return a list of the names of all loaded plugins.


Static Public Member Functions

KURIFilterself ()
 Return a static instance of KURIFilter.


Protected Member Functions

 KURIFilter ()
 A protected constructor.

void loadPlugins ()
 Loads all allowed plugins.


Detailed Description

Manages the filtering of a URI. Filters a given URL into its proper format whenever possible.

The intention of this plugin class is to allow people to extend the functionality of KURL without modifying it directly. This way KURL will remain a generic parser capable of parsing any generic URL that adheres to specifications.

The KURIFilter class applies a number of filters to a URI, and returns the filtered version whenever possible. The filters are implemented using plugins to provide easy extensibility of the filtering mechanism. That is, new filters can be added in the future by simply inheriting from KURIFilterPlugin and implementing the KURIFilterPlugin::filterURI method.

Use of this plugin-manager class is straight forward. Since it is a singleton object, all you have to do is obtain an instance by doing KURIFilter::self() and use any of the public member functions to preform the filtering.

Example

To simply filter a given string:

bool filtered = KURIFilter::self()->filterURI( "kde.org" );

You can alternatively use a KURL:

KURL url = "kde.org"; bool filtered = KURIFilter::self()->filterURI( url );

If you have a constant string or a constant URL, simply invoke the corresponding function to obtain the filtered string or URL instead of a boolean flag:

QString u = KURIFilter::self()->filteredURI( "kde.org" );

You can also specify only specific filter(s) to be applied by supplying the name(s) of the filter(s). By defualt all filters that are found are loaded when the KURIFilter object is created will be used. These names are taken from the enteries in the \".desktop\" files. Here are a couple of examples:

QString text = "kde.org"; bool filtered = KURIFilter::self()->filterURI( text, "KShortURIFilter" );

QStringList list; list << "KShortURIFilter" << "MyFilter"; bool filtered = KURIFilter::self()->filterURI( text, list );

KURIFilter also allows richer data exchange through a simple meta-object called KURIFilterData. Using this meta-object you can find out more information about the URL you want to filter. See KURIFilterData for examples and details.

Definition at line 469 of file kurifilter.h.


Constructor & Destructor Documentation

KURIFilter::~KURIFilter  ) 
 

Destructor.

Definition at line 188 of file kurifilter.cpp.

KURIFilter::KURIFilter  )  [protected]
 

A protected constructor.

This constructor creates a KURIFilter and initializes all plugins it can find by invoking loadPlugins.

Definition at line 182 of file kurifilter.cpp.

References loadPlugins().


Member Function Documentation

KURIFilter * KURIFilter::self  )  [static]
 

Return a static instance of KURIFilter.

Definition at line 175 of file kurifilter.cpp.

bool KURIFilter::filterURI KURIFilterData data,
const QStringList filters = QStringList()
 

Filters the URI given by the object URIFilterData.

This filters the given data based on the specified filter list. If the list is empty all avaliable filter plugins would be used. If not, only those given in the list are used.

Parameters:
data object that contains the URI to be filtered.
filters specify the list filters to be used
Returns:
a boolean indicating whether the URI has been changed

Definition at line 193 of file kurifilter.cpp.

References QPtrListIterator::current().

Referenced by filteredURI(), and filterURI().

bool KURIFilter::filterURI KURL uri,
const QStringList filters = QStringList()
 

Filters the URI given by the URL.

This filters the given URL based on the specified filter list. If the list is empty all avaliable filter plugins would be used. If not, only those given in the list are used.

Parameters:
uri the URI to filter.
filters specify the list of filters to be used
Returns:
a boolean indicating whether the URI has been changed

Definition at line 232 of file kurifilter.cpp.

References filterURI(), and KURIFilterData::uri().

bool KURIFilter::filterURI QString uri,
const QStringList filters = QStringList()
 

Filters a string representing a URI.

This filters the given string based on the specified filter list. If the list is empty all avaliable filter plugins would be used. If not, only those given in the list are used.

Parameters:
uri The URI to filter.
filters specify the list filters to be used
Returns:
a boolean indicating whether the URI has been changed

Definition at line 240 of file kurifilter.cpp.

References filterURI(), KURIFilterData::uri(), and KURL::url().

KURL KURIFilter::filteredURI const KURL uri,
const QStringList filters = QStringList()
 

Returns the filtered URI.

This filters the given URL based on the specified filter list. If the list is empty all avaliable filter plugins would be used. If not, only those given in the list are used.

Parameters:
uri The URI to filter.
filters specify the list filters to be used
Returns:
the filtered URI or null if it cannot be filtered

Definition at line 249 of file kurifilter.cpp.

References filterURI(), and KURIFilterData::uri().

QString KURIFilter::filteredURI const QString uri,
const QStringList filters = QStringList()
 

Return a filtered string representation of a URI.

This filters the given URL based on the specified filter list. If the list is empty all avaliable filter plugins would be used. If not, only those given in the list are used.

Parameters:
uri the URI to filter.
filters specify the list filters to be used
Returns:
the filtered URI or null if it cannot be filtered

Definition at line 256 of file kurifilter.cpp.

References filterURI(), KURIFilterData::uri(), and KURL::url().

QPtrListIterator< KURIFilterPlugin > KURIFilter::pluginsIterator  )  const
 

Return an iterator to iterate over all loaded plugins.

Returns:
a plugin iterator.

Definition at line 263 of file kurifilter.cpp.

Referenced by pluginNames().

QStringList KURIFilter::pluginNames  )  const
 

Return a list of the names of all loaded plugins.

Since:
3.1
Returns:
a QStringList of plugin names

Definition at line 268 of file kurifilter.cpp.

References pluginsIterator().

void KURIFilter::loadPlugins  )  [protected]
 

Loads all allowed plugins.

This function loads all filters that have not been dis

Definition at line 276 of file kurifilter.cpp.

References QValueList::begin(), QValueList::end(), KStdAccel::end(), KTrader::OfferList, KTrader::query(), and KTrader::self().

Referenced by KURIFilter().


The documentation for this class was generated from the following files:
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This file is part of the documentation for kdelibs Version 3.1.4.
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Generated on Sun Feb 27 22:15:37 2005 by doxygen 1.3.4 written by Dimitri van Heesch, © 1997-2001