--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/demos/browser/history.h Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,350 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the demonstration applications of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#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
+