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Diffstat (limited to 'tdecore/kurldrag.h')
-rw-r--r-- | tdecore/kurldrag.h | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/tdecore/kurldrag.h b/tdecore/kurldrag.h new file mode 100644 index 000000000..019119600 --- /dev/null +++ b/tdecore/kurldrag.h @@ -0,0 +1,165 @@ +/* This file is part of the KDE project + Copyright (C) 2000 David Faure <faure@kde.org> + + This program is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public License + along with this program; see the file COPYING. If not, write to + the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + Boston, MA 02110-1301, USA. +*/ + +#ifndef __KURLDRAG_H +#define __KURLDRAG_H + +#include <tqstringlist.h> +#include <tqdragobject.h> +#include <kurl.h> +#include "kdelibs_export.h" +class TQMimeSource; + +class KURLDragPrivate; +/** + * This class is to be used instead of TQUriDrag when using KURL. + * The reason is: TQUriDrag (and the XDND/W3C standards) expect URLs to + * be encoded in UTF-8 (tqunicode), but KURL uses the current locale + * by default. + * The other reasons for using this class are: + * @li it exports text/plain (for dropping/pasting into lineedits, mails etc.) + * @li it has support for metadata, shipped as part of the dragobject + * This is important, for instance to set a correct HTTP referrer (some websites + * require it for downloading e.g. an image). + * + * To create a drag object, use the KURLDrag constructor. + * To handle drops, use TQUriDrag::canDecode() and KURLDrag::decode() + */ +class KDECORE_EXPORT KURLDrag : public TQUriDrag +{ +public: + /** + * Constructs an object to drag the list of URLs in @p urls. + * The @p dragSource and @p name arguments are passed on to TQUriDrag, + * and the list of urls is converted to UTF-8 before being passed + * to TQUriDrag. + * @param urls the list of URLs + * @param dragSource the parent of the TQObject. Should be set when doing drag-n-drop, + * but should be 0 when copying to the clipboard + * @param name the name of the QObject + */ + KURLDrag( const KURL::List &urls, TQWidget* dragSource = 0, const char * name = 0 ); + /** + * Constructs an object to drag the list of URLs in @p urls. + * This version also includes metadata. + * @param urls the list of URLs + * @param metaData a map containing meta data + * @param dragSource the parent of the TQObject. Should be set when doing drag-n-drop, + * but should be 0 when copying to the clipboard + * @param name the name of the QObject + * @see metaData() + */ + KURLDrag( const KURL::List &urls, const TQMap<TQString, TQString>& metaData, + TQWidget* dragSource = 0, const char * name = 0 ); + + virtual ~KURLDrag(); + + /** + * By default, KURLDrag also exports the URLs as plain text, for e.g. dropping onto a text editor. + * But in some cases this might not be wanted, e.g. if using the KURLDrag in a KMultipleDrag + * and another component of the multiple-drag provides better plain text data. + * In such a case, setExportAsText( false ) should be called. + * @since 3.4 + */ + void setExportAsText( bool exp ); + + /** + * @deprecated Is equivalent with "new KURLDrag(urls, dragSource, name)". + */ + static KURLDrag * newDrag( const KURL::List &urls, TQWidget* dragSource = 0, const char * name = 0 ) KDE_DEPRECATED; + + /** + * @deprecated Is equivalent with "new KURLDrag(urls, metaData, dragSource, name)". + */ + static KURLDrag * newDrag( const KURL::List &urls, const TQMap<TQString, TQString>& metaData, + TQWidget* dragSource = 0, const char * name = 0 ) KDE_DEPRECATED; + + /** + * Meta-data to associate with those URLs. + * This is an alternative way of setting the metadata: + * either use the constructor to pass it all at once, or use + * drag->metaData()["key"] = data; + * @see KIO::TransferJob + */ + TQMap<TQString, TQString> &metaData() { return m_metaData; } + + /** + * Convenience method that decodes the contents of @p e + * into a list of KURLs. Decoding will fail if at least one decoded value + * is not a valid KURL. + * @param e the mime source + * @param urls the list of urls will be written here + * @return true if successful, false otherwise + */ + static bool decode( const TQMimeSource *e, KURL::List &urls ); + + /** + * Convenience method that decodes the contents of @p e + * into a list of KURLs and a set of metadata. Decoding will fail if + * at least one decoded value is not a valid KURL. + * You should be using this one, if possible. + * @param e the mime source + * @param urls the list of urls will be written here + * @param metaData the metadata map will be written here + * @return true if successful, false otherwise + */ + static bool decode( const TQMimeSource *e, KURL::List &urls, TQMap<TQString,TQString>& metaData ); + + /** + * Converts a URL to a string representation suitable for dragging. + * @since 3.2 + */ + static TQString urlToString(const KURL &url); + + /** + * Converts a string used for dragging to a URL. + * @since 3.2 + */ + static KURL stringToUrl(const TQCString &s); + +#ifdef Q_WS_QWS + /** + * Convenience method that decodes the contents of @p e + * into a list of KURLs for Qt versions without a MIME clipboard. + * Decoding will fail if at least one value in the list is not a valid KURL. + */ + static bool decode( TQStringList const &e, KURL::List &uris ); +#endif + + /// @reimp + virtual const char * format( int i ) const; + /// @reimp + virtual TQByteArray tqencodedData( const char* mime ) const; + +protected: + /** + * @deprecated Use a KURLDrag constructor with a KURL::List + */ + KURLDrag( const TQStrList & urls, const TQMap<TQString,TQString>& metaData, + TQWidget * dragSource, const char* name ) KDE_DEPRECATED; + +private: + void init(const KURL::List &urls); + + TQStrList m_urls; + TQMap<TQString,TQString> m_metaData; + KURLDragPrivate* d; +}; + +#endif |