history.h
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上传日期:2015-12-10
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浏览器
开发平台:
Visual C++
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- ** Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
- ** Contact: Qt Software Information (qt-info@nokia.com)
- **
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- ** GNU General Public License Usage
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- ** General Public License versions 2.0 or 3.0 as published by the Free
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- ** the packaging of this file. Please review the following information
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- #ifndef HISTORY_H
- #define HISTORY_H
- #include "modelmenu.h"
- #include <QtCore/QDateTime>
- #include <QtCore/QHash>
- #include <QtCore/QObject>
- #include <QtCore/QTimer>
- #include <QtCore/QUrl>
- #include <QtGui/QSortFilterProxyModel>
- #include <QWebHistoryInterface>
- class HistoryItem
- {
- public:
- HistoryItem() {}
- HistoryItem(const QString &u,
- const QDateTime &d = QDateTime(), const QString &t = QString())
- : title(t), url(u), dateTime(d) {}
- inline bool operator==(const HistoryItem &other) const
- { return other.title == title
- && other.url == url && other.dateTime == dateTime; }
- // history is sorted in reverse
- inline bool operator <(const HistoryItem &other) const
- { return dateTime > other.dateTime; }
- QString title;
- QString url;
- QDateTime dateTime;
- };
- class AutoSaver;
- class HistoryModel;
- class HistoryFilterModel;
- class HistoryTreeModel;
- class HistoryManager : public QWebHistoryInterface
- {
- Q_OBJECT
- Q_PROPERTY(int historyLimit READ historyLimit WRITE setHistoryLimit)
- signals:
- void historyReset();
- void entryAdded(const HistoryItem &item);
- void entryRemoved(const HistoryItem &item);
- void entryUpdated(int offset);
- public:
- HistoryManager(QObject *parent = 0);
- ~HistoryManager();
- bool historyContains(const QString &url) const;
- void addHistoryEntry(const QString &url);
- void updateHistoryItem(const QUrl &url, const QString &title);
- int historyLimit() const;
- void setHistoryLimit(int limit);
- QList<HistoryItem> history() const;
- void setHistory(const QList<HistoryItem> &history, bool loadedAndSorted = false);
- // History manager keeps around these models for use by the completer and other classes
- HistoryModel *historyModel() const;
- HistoryFilterModel *historyFilterModel() const;
- HistoryTreeModel *historyTreeModel() const;
- public slots:
- void clear();
- void loadSettings();
- private slots:
- void save();
- void checkForExpired();
- protected:
- void addHistoryItem(const HistoryItem &item);
- private:
- void load();
- AutoSaver *m_saveTimer;
- int m_historyLimit;
- QTimer m_expiredTimer;
- QList<HistoryItem> m_history;
- QString m_lastSavedUrl;
- HistoryModel *m_historyModel;
- HistoryFilterModel *m_historyFilterModel;
- HistoryTreeModel *m_historyTreeModel;
- };
- class HistoryModel : public QAbstractTableModel
- {
- Q_OBJECT
- public slots:
- void historyReset();
- void entryAdded();
- void entryUpdated(int offset);
- public:
- enum Roles {
- DateRole = Qt::UserRole + 1,
- DateTimeRole = Qt::UserRole + 2,
- UrlRole = Qt::UserRole + 3,
- UrlStringRole = Qt::UserRole + 4
- };
- HistoryModel(HistoryManager *history, QObject *parent = 0);
- 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;
- bool removeRows(int row, int count, const QModelIndex &parent = QModelIndex());
- private:
- HistoryManager *m_history;
- };
- /*!
- Proxy model that will remove any duplicate entries.
- Both m_sourceRow and m_historyHash store their offsets not from
- the front of the list, but as offsets from the back.
- */
- class HistoryFilterModel : public QAbstractProxyModel
- {
- Q_OBJECT
- public:
- HistoryFilterModel(QAbstractItemModel *sourceModel, QObject *parent = 0);
- inline bool historyContains(const QString &url) const
- { load(); return m_historyHash.contains(url); }
- int historyLocation(const QString &url) const;
- QModelIndex mapFromSource(const QModelIndex &sourceIndex) const;
- QModelIndex mapToSource(const QModelIndex &proxyIndex) const;
- void setSourceModel(QAbstractItemModel *sourceModel);
- QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const;
- int rowCount(const QModelIndex &parent = QModelIndex()) const;
- int columnCount(const QModelIndex &parent = QModelIndex()) const;
- QModelIndex index(int, int, const QModelIndex& = QModelIndex()) const;
- QModelIndex parent(const QModelIndex& index= QModelIndex()) const;
- bool removeRows(int row, int count, const QModelIndex &parent = QModelIndex());
- QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const;
- private slots:
- void sourceReset();
- void sourceDataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight);
- void sourceRowsInserted(const QModelIndex &parent, int start, int end);
- void sourceRowsRemoved(const QModelIndex &, int, int);
- private:
- void load() const;
- mutable QList<int> m_sourceRow;
- mutable QHash<QString, int> m_historyHash;
- mutable bool m_loaded;
- };
- /*
- The history menu
- - Removes the first twenty entries and puts them as children of the top level.
- - If there are less then twenty entries then the first folder is also removed.
- The mapping is done by knowing that HistoryTreeModel is over a table
- We store that row offset in our index's private data.
- */
- class HistoryMenuModel : public QAbstractProxyModel
- {
- Q_OBJECT
- public:
- HistoryMenuModel(HistoryTreeModel *sourceModel, QObject *parent = 0);
- int columnCount(const QModelIndex &parent) const;
- int rowCount(const QModelIndex &parent = QModelIndex()) const;
- QModelIndex mapFromSource(const QModelIndex & sourceIndex) const;
- QModelIndex mapToSource(const QModelIndex & proxyIndex) const;
- QModelIndex index(int, int, const QModelIndex &parent = QModelIndex()) const;
- QModelIndex parent(const QModelIndex &index = QModelIndex()) const;
- int bumpedRows() const;
- private:
- HistoryTreeModel *m_treeModel;
- };
- // Menu that is dynamically populated from the history
- class HistoryMenu : public ModelMenu
- {
- Q_OBJECT
- signals:
- void openUrl(const QUrl &url);
- public:
- HistoryMenu(QWidget *parent = 0);
- void setInitialActions(QList<QAction*> actions);
- protected:
- bool prePopulated();
- void postPopulated();
- private slots:
- void activated(const QModelIndex &index);
- void showHistoryDialog();
- private:
- HistoryManager *m_history;
- HistoryMenuModel *m_historyMenuModel;
- QList<QAction*> m_initialActions;
- };
- // proxy model for the history model that
- // exposes each url http://www.foo.com and it url starting at the host www.foo.com
- class HistoryCompletionModel : public QAbstractProxyModel
- {
- Q_OBJECT
- public:
- HistoryCompletionModel(QObject *parent = 0);
- QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const;
- int rowCount(const QModelIndex &parent = QModelIndex()) const;
- int columnCount(const QModelIndex &parent = QModelIndex()) const;
- QModelIndex mapFromSource(const QModelIndex &sourceIndex) const;
- QModelIndex mapToSource(const QModelIndex &proxyIndex) const;
- QModelIndex index(int, int, const QModelIndex& = QModelIndex()) const;
- QModelIndex parent(const QModelIndex& index= QModelIndex()) const;
- void setSourceModel(QAbstractItemModel *sourceModel);
- private slots:
- void sourceReset();
- };
- // proxy model for the history model that converts the list
- // into a tree, one top level node per day.
- // Used in the HistoryDialog.
- class HistoryTreeModel : public QAbstractProxyModel
- {
- Q_OBJECT
- public:
- HistoryTreeModel(QAbstractItemModel *sourceModel, QObject *parent = 0);
- QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const;
- int columnCount(const QModelIndex &parent) const;
- int rowCount(const QModelIndex &parent = QModelIndex()) const;
- QModelIndex mapFromSource(const QModelIndex &sourceIndex) const;
- QModelIndex mapToSource(const QModelIndex &proxyIndex) const;
- QModelIndex index(int row, int column, const QModelIndex &parent = QModelIndex()) const;
- QModelIndex parent(const QModelIndex &index= QModelIndex()) const;
- bool hasChildren(const QModelIndex &parent = QModelIndex()) const;
- Qt::ItemFlags flags(const QModelIndex &index) const;
- bool removeRows(int row, int count, const QModelIndex &parent = QModelIndex());
- QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const;
- void setSourceModel(QAbstractItemModel *sourceModel);
- private slots:
- void sourceReset();
- void sourceRowsInserted(const QModelIndex &parent, int start, int end);
- void sourceRowsRemoved(const QModelIndex &parent, int start, int end);
- private:
- int sourceDateRow(int row) const;
- mutable QList<int> m_sourceRowCache;
- };
- // A modified QSortFilterProxyModel that always accepts the root nodes in the tree
- // so filtering is only done on the children.
- // Used in the HistoryDialog
- class TreeProxyModel : public QSortFilterProxyModel
- {
- Q_OBJECT
- public:
- TreeProxyModel(QObject *parent = 0);
- protected:
- bool filterAcceptsRow(int source_row, const QModelIndex &source_parent) const;
- };
- #include "ui_history.h"
- class HistoryDialog : public QDialog, public Ui_HistoryDialog
- {
- Q_OBJECT
- signals:
- void openUrl(const QUrl &url);
- public:
- HistoryDialog(QWidget *parent = 0, HistoryManager *history = 0);
- private slots:
- void customContextMenuRequested(const QPoint &pos);
- void open();
- void copy();
- };
- #endif // HISTORY_H