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+/* 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