bookmarks.h Example File

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#ifndef BOOKMARKS_H #define BOOKMARKS_H #include <QtCore/QObject> #include <QtCore/QAbstractItemModel> #include <QtWidgets/QUndoCommand> /*! Bookmark manager, owner of the bookmarks, loads, saves and basic tasks */ class AutoSaver; class BookmarkNode; class BookmarksModel; class BookmarksManager : public QObject { Q_OBJECT signals: void entryAdded(BookmarkNode *item); void entryRemoved(BookmarkNode *parent, int row, BookmarkNode *item); void entryChanged(BookmarkNode *item); public: BookmarksManager(QObject *parent = 0); ~BookmarksManager(); void addBookmark(BookmarkNode *parent, BookmarkNode *node, int row = -1); void removeBookmark(BookmarkNode *node); void setTitle(BookmarkNode *node, const QString &newTitle); void setUrl(BookmarkNode *node, const QString &newUrl); void changeExpanded(); BookmarkNode *bookmarks(); BookmarkNode *menu(); BookmarkNode *toolbar(); BookmarksModel *bookmarksModel(); QUndoStack *undoRedoStack() { return &m_commands; }; public slots: void importBookmarks(); void exportBookmarks(); private slots: void save() const; private: void load(); bool m_loaded; AutoSaver *m_saveTimer; BookmarkNode *m_bookmarkRootNode; BookmarksModel *m_bookmarkModel; QUndoStack m_commands; friend class RemoveBookmarksCommand; friend class ChangeBookmarkCommand; }; class RemoveBookmarksCommand : public QUndoCommand { public: RemoveBookmarksCommand(BookmarksManager *m_bookmarkManagaer, BookmarkNode *parent, int row); ~RemoveBookmarksCommand(); void undo(); void redo(); protected: int m_row; BookmarksManager *m_bookmarkManagaer; BookmarkNode *m_node; BookmarkNode *m_parent; bool m_done; }; class InsertBookmarksCommand : public RemoveBookmarksCommand { public: InsertBookmarksCommand(BookmarksManager *m_bookmarkManagaer, BookmarkNode *parent, BookmarkNode *node, int row); void undo() { RemoveBookmarksCommand::redo(); } void redo() { RemoveBookmarksCommand::undo(); } }; class ChangeBookmarkCommand : public QUndoCommand { public: ChangeBookmarkCommand(BookmarksManager *m_bookmarkManagaer, BookmarkNode *node, const QString &newValue, bool title); void undo(); void redo(); private: BookmarksManager *m_bookmarkManagaer; bool m_title; QString m_oldValue; QString m_newValue; BookmarkNode *m_node; }; /*! BookmarksModel is a QAbstractItemModel wrapper around the BookmarkManager */ class BookmarksModel : public QAbstractItemModel { Q_OBJECT public slots: void entryAdded(BookmarkNode *item); void entryRemoved(BookmarkNode *parent, int row, BookmarkNode *item); void entryChanged(BookmarkNode *item); public: enum Roles { TypeRole = Qt::UserRole + 1, UrlRole = Qt::UserRole + 2, UrlStringRole = Qt::UserRole + 3, SeparatorRole = Qt::UserRole + 4 }; BookmarksModel(BookmarksManager *bookmarkManager, QObject *parent = 0); inline BookmarksManager *bookmarksManager() const { return m_bookmarksManager; } QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const; QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const; int columnCount(const QModelIndex &parent = QModelIndex()) const; int rowCount(const QModelIndex &parent = QModelIndex()) const; QModelIndex index(int, int, const QModelIndex& = QModelIndex()) const; QModelIndex parent(const QModelIndex& index= QModelIndex()) const; Qt::ItemFlags flags(const QModelIndex &index) const; Qt::DropActions supportedDropActions () const; bool removeRows(int row, int count, const QModelIndex &parent = QModelIndex()); bool setData(const QModelIndex &index, const QVariant &value, int role = Qt::EditRole); QMimeData *mimeData(const QModelIndexList &indexes) const; QStringList mimeTypes() const; bool dropMimeData(const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent); bool hasChildren(const QModelIndex &parent = QModelIndex()) const; BookmarkNode *node(const QModelIndex &index) const; QModelIndex index(BookmarkNode *node) const; private: bool m_endMacro; BookmarksManager *m_bookmarksManager; }; // Menu that is dynamically populated from the bookmarks #include "modelmenu.h" class BookmarksMenu : public ModelMenu { Q_OBJECT signals: void openUrl(const QUrl &url); public: BookmarksMenu(QWidget *parent = 0); void setInitialActions(QList<QAction*> actions); protected: bool prePopulated(); private slots: void activated(const QModelIndex &index); private: BookmarksManager *m_bookmarksManager; QList<QAction*> m_initialActions; }; /* Proxy model that filters out the bookmarks so only the folders are left behind. Used in the add bookmark dialog combobox. */ #include <QtCore/QSortFilterProxyModel> class AddBookmarkProxyModel : public QSortFilterProxyModel { Q_OBJECT public: AddBookmarkProxyModel(QObject * parent = 0); int columnCount(const QModelIndex & parent = QModelIndex()) const; protected: bool filterAcceptsRow(int source_row, const QModelIndex &source_parent) const; }; /*! Add bookmark dialog */ #include "ui_addbookmarkdialog.h" class AddBookmarkDialog : public QDialog, public Ui_AddBookmarkDialog { Q_OBJECT public: AddBookmarkDialog(const QString &url, const QString &title, QWidget *parent = 0, BookmarksManager *bookmarkManager = 0); private slots: void accept(); private: QString m_url; BookmarksManager *m_bookmarksManager; AddBookmarkProxyModel *m_proxyModel; }; #include "ui_bookmarks.h" class TreeProxyModel; class BookmarksDialog : public QDialog, public Ui_BookmarksDialog { Q_OBJECT signals: void openUrl(const QUrl &url); public: BookmarksDialog(QWidget *parent = 0, BookmarksManager *manager = 0); ~BookmarksDialog(); private slots: void customContextMenuRequested(const QPoint &pos); void open(); void newFolder(); private: void expandNodes(BookmarkNode *node); bool saveExpandedNodes(const QModelIndex &parent); BookmarksManager *m_bookmarksManager; BookmarksModel *m_bookmarksModel; TreeProxyModel *m_proxyModel; }; #include <QtWidgets/QToolBar> class BookmarksToolBar : public QToolBar { Q_OBJECT signals: void openUrl(const QUrl &url); public: BookmarksToolBar(BookmarksModel *model, QWidget *parent = 0); void setRootIndex(const QModelIndex &index); QModelIndex rootIndex() const; protected: void dragEnterEvent(QDragEnterEvent *event); void dropEvent(QDropEvent *event); private slots: void triggered(QAction *action); void activated(const QModelIndex &index); void build(); private: BookmarksModel *m_bookmarksModel; QPersistentModelIndex m_root; }; #endif // BOOKMARKS_H

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