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- // -*- c-basic-offset: 4; indent-tabs-mode:nil -*-
- // vim: set ts=4 sts=4 sw=4 et:
- /* This file is part of the KDE libraries
- Copyright (C) 2000 David Faure <faure@kde.org>
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public
- License version 2 as published by the Free Software Foundation.
-
- This library 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 library; see the file COPYING.LIB. If not, write to
- the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA.
- */
- #ifndef __kbookmark_h
- #define __kbookmark_h
-
- #include <qstring.h>
- #include <qvaluelist.h>
- #include <qdom.h>
- #include <kurl.h>
-
- class KBookmarkManager;
- class KBookmarkGroup;
-
- class KIO_EXPORT KBookmark
- {
- friend class KBookmarkGroup;
- public:
- enum MetaDataOverwriteMode {
- OverwriteMetaData, DontOverwriteMetaData
- };
-
- KBookmark( ) {}
- KBookmark( QDomElement elem ) : element(elem) {}
-
- static KBookmark standaloneBookmark( const QString & text, const KURL & url, const QString & icon = QString::null );
-
- /**
- * Whether the bookmark is a group or a normal bookmark
- */
- bool isGroup() const;
-
- /**
- * Whether the bookmark is a separator
- */
- bool isSeparator() const;
-
- /**
- * @return true if this is a null bookmark. This will never
- * be the case for a real bookmark (in a menu), but it's used
- * for instance as the end condition for KBookmarkGroup::next()
- */
- bool isNull() const {return element.isNull();}
-
- /**
- * @return true if bookmark is contained by a QDomDocument,
- * if not it is most likely that it has become separated and
- * is thus invalid and/or has been deleted from the bookmarks.
- * @since 3.2
- */
- bool hasParent() const;
-
- /**
- * Text shown for the bookmark
- * If bigger than 40, the text is shortened by
- * replacing middle characters with "..." (see KStringHandler::csqueeze)
- */
- QString text() const;
- /**
- * Text shown for the bookmark, not truncated.
- * You should not use this - this is mainly for keditbookmarks.
- */
- QString fullText() const;
- /**
- * URL contained by the bookmark
- */
- KURL url() const;
- /**
- * @return the pixmap file for this bookmark
- * (i.e. the name of the icon)
- */
- QString icon() const;
-
- /**
- * @return the group containing this bookmark
- */
- KBookmarkGroup parentGroup() const;
-
- /**
- * Convert this to a group - do this only if
- * isGroup() returns true.
- */
- KBookmarkGroup toGroup() const;
-
- /**
- * Return the "address" of this bookmark in the whole tree.
- * This is used when telling other processes about a change
- * in a given bookmark. The encoding of the address is "/4/2", for
- * instance, to design the 2nd child inside the 4th child of the root bk.
- */
- QString address() const;
-
- // Hard to decide. Good design would imply that each bookmark
- // knows about its manager, so that there can be several managers.
- // But if we say there is only one manager (i.e. set of bookmarks)
- // per application, then KBookmarkManager::self() is much easier.
- //KBookmarkManager * manager() const { return m_manager; }
-
- /**
- * @internal for KEditBookmarks
- */
- QDomElement internalElement() const { return element; }
-
- /**
- * Updates the bookmarks access metadata
- * Call when a user accesses the bookmark
- * @since 3.2
- */
- void updateAccessMetadata();
-
- // Utility functions (internal)
-
- /**
- * @return address of parent
- */
- static QString parentAddress( const QString & address )
- { return address.left( address.findRev('/') ); }
-
- /**
- * @return position in parent (e.g. /4/5/2 -> 2)
- */
- static uint positionInParent( const QString & address )
- { return address.mid( address.findRev('/') + 1 ).toInt(); }
-
- /**
- * @return address of previous sibling (e.g. /4/5/2 -> /4/5/1)
- * Returns QString::null for a first child
- */
- static QString previousAddress( const QString & address )
- {
- uint pp = positionInParent(address);
- return pp>0 ? parentAddress(address) + '/' + QString::number(pp-1) : QString::null;
- }
-
- /**
- * @return address of next sibling (e.g. /4/5/2 -> /4/5/3)
- * This doesn't check whether it actually exists
- */
- static QString nextAddress( const QString & address )
- { return parentAddress(address) + '/' + QString::number(positionInParent(address)+1); }
-
- /**
- * @return the common parent of both addresses which
- * has the greatest depth
- * @since 3.5
- */
- static QString commonParent(QString A, QString B);
-
- /**
- * Get the value of a specific metadata item.
- * @param key Name of the metadata item
- * @return Value of the metadata item. QString::null is returned in case
- * the specified key does not exist.
- * @since 3.4
- */
- QString metaDataItem( const QString &key ) const;
-
- /**
- * Change the value of a specific metadata item, or create the given item
- * if it doesn't exist already.
- * @param key Name of the metadata item to change
- * @param value Value to use for the specified metadata item
- * @param mode Whether to overwrite the item's value if it exists already or not.
- * @since 3.4
- */
- void setMetaDataItem( const QString &key, const QString &value, MetaDataOverwriteMode mode = OverwriteMetaData );
-
- protected:
- QDomElement element;
- // Note: you can't add new member variables here.
- // The KBookmarks are created on the fly, as wrappers
- // around internal QDomElements. Any additional information
- // has to be implemented as an attribute of the QDomElement.
-
- private:
- bool hasMetaData() const;
- static QString left(const QString & str, uint len);
- };
-
- /**
- * A group of bookmarks
- */
- class KIO_EXPORT KBookmarkGroup : public KBookmark
- {
- public:
- /**
- * Create an invalid group. This is mostly for use in QValueList,
- * and other places where we need a null group.
- * Also used as a parent for a bookmark that doesn't have one
- * (e.g. Netscape bookmarks)
- */
- KBookmarkGroup();
-
- /**
- * Create a bookmark group as specified by the given element
- */
- KBookmarkGroup( QDomElement elem );
-
- /**
- * Much like KBookmark::address, but caches the
- * address into m_address.
- */
- QString groupAddress() const;
-
- /**
- * @return true if the bookmark folder is opened in the bookmark editor
- */
- bool isOpen() const;
-
- /**
- * Return the first child bookmark of this group
- */
- KBookmark first() const;
- /**
- * Return the prevous sibling of a child bookmark of this group
- * @param current has to be one of our child bookmarks.
- */
- KBookmark previous( const KBookmark & current ) const;
- /**
- * Return the next sibling of a child bookmark of this group
- * @param current has to be one of our child bookmarks.
- */
- KBookmark next( const KBookmark & current ) const;
-
- /**
- * Create a new bookmark folder, as the last child of this group
- * @param mgr the manager of the bookmark
- * @param text for the folder. If empty, the user will be queried for it.
- * @param emitSignal if true emit KBookmarkNotifier signal
- */
- KBookmarkGroup createNewFolder( KBookmarkManager* mgr, const QString & text = QString::null, bool emitSignal = true );
- /**
- * Create a new bookmark separator
- * Don't forget to use KBookmarkManager::self()->emitChanged( parentBookmark );
- */
- KBookmark createNewSeparator();
-
- /**
- * Create a new bookmark, as the last child of this group
- * Don't forget to use KBookmarkManager::self()->emitChanged( parentBookmark );
- * @param mgr the manager of the bookmark
- * @param bm the bookmark to add
- * @param emitSignal if true emit KBookmarkNotifier signal
- * @since 3.4
- */
- KBookmark addBookmark( KBookmarkManager* mgr, const KBookmark &bm, bool emitSignal = true );
-
- /**
- * Create a new bookmark, as the last child of this group
- * Don't forget to use KBookmarkManager::self()->emitChanged( parentBookmark );
- * @param mgr the manager of the bookmark
- * @param text for the bookmark
- * @param url the URL that the bookmark points to
- * @param icon the name of the icon to associate with the bookmark. A suitable default
- * will be determined from the URL if not specified.
- * @param emitSignal if true emit KBookmarkNotifier signal
- */
- KBookmark addBookmark( KBookmarkManager* mgr, const QString & text, const KURL & url, const QString & icon = QString::null, bool emitSignal = true );
-
- /**
- * Moves @p item after @p after (which should be a child of ours).
- * If item is null, @p item is moved as the first child.
- * Don't forget to use KBookmarkManager::self()->emitChanged( parentBookmark );
- */
- bool moveItem( const KBookmark & item, const KBookmark & after );
-
- /**
- * Delete a bookmark - it has to be one of our children !
- * Don't forget to use KBookmarkManager::self()->emitChanged( parentBookmark );
- */
- void deleteBookmark( KBookmark bk );
-
- /**
- * @return true if this is the toolbar group
- */
- bool isToolbarGroup() const;
- /**
- * @internal
- */
- QDomElement findToolbar() const;
-
- /**
- * @return the list of urls of bookmarks at top level of the group
- * @since 3.2
- */
- QValueList<KURL> groupUrlList() const;
-
- protected:
- QDomElement nextKnownTag( QDomElement start, bool goNext ) const;
-
- private:
- mutable QString m_address;
- // Note: you can't add other member variables here, except for caching info.
- // The KBookmarks are created on the fly, as wrappers
- // around internal QDomElements. Any additional information
- // has to be implemented as an attribute of the QDomElement.
- };
-
- /**
- * @since 3.2
- */
- class KIO_EXPORT KBookmarkGroupTraverser {
- protected:
- virtual ~KBookmarkGroupTraverser() { ; }
- void traverse(const KBookmarkGroup &);
- virtual void visit(const KBookmark &) { ; }
- virtual void visitEnter(const KBookmarkGroup &) { ; }
- virtual void visitLeave(const KBookmarkGroup &) { ; }
- private:
- class KBookmarkGroupTraverserPrivate *d;
- };
-
- #endif
-