diff options
Diffstat (limited to 'examples/webenginewidgets/browser/history.h')
| -rw-r--r-- | examples/webenginewidgets/browser/history.h | 354 |
1 files changed, 354 insertions, 0 deletions
diff --git a/examples/webenginewidgets/browser/history.h b/examples/webenginewidgets/browser/history.h new file mode 100644 index 000000000..4006f3415 --- /dev/null +++ b/examples/webenginewidgets/browser/history.h @@ -0,0 +1,354 @@ +/**************************************************************************** +** +** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the demonstration applications of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Digia. For licensing terms and +** conditions see http://qt.digia.com/licensing. For further information +** use the contact form at http://qt.digia.com/contact-us. +** +** 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, Digia gives you certain additional +** rights. These rights are described in the Digia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#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 <QtCore/QSortFilterProxyModel> + +#include <QWebEngineHistoryInterface> + +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 +#if defined(QWEBENGINEHISTORYINTERFACE) + : public QWebEngineHistoryInterface +#else + : public QObject +#endif +{ + 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 |