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/*
Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
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.
*/
#include "config.h"
#include "qwebdatabase.h"
#include "qwebdatabase_p.h"
#include "qwebsecurityorigin.h"
#include "qwebsecurityorigin_p.h"
#include "DatabaseDetails.h"
#include "DatabaseTracker.h"
using namespace WebCore;
/*!
\class QWebDatabase
\since 4.5
\brief The QWebDatabase class provides access to HTML 5 databases created with JavaScript.
The upcoming HTML 5 standard includes support for SQL databases that web sites can create and
access on a local computer through JavaScript. QWebDatabase is the C++ interface to these databases.
For more information refer to the \l{http://www.w3.org/html/wg/html5/#sql}{HTML 5 Draft Standard}.
\sa QWebSecurityOrigin
*/
/*!
Constructs a web database from \a other.
*/
QWebDatabase::QWebDatabase(const QWebDatabase& other) : d(other.d)
{
}
/*!
Assigns the \a other web database to this.
*/
QWebDatabase& QWebDatabase::operator=(const QWebDatabase& other)
{
d = other.d;
return *this;
}
/*!
Returns the name of the database.
*/
QString QWebDatabase::name() const
{
return d->name;
}
/*!
Returns the name of the database as seen by the user.
*/
QString QWebDatabase::displayName() const
{
#if ENABLE(DATABASE)
DatabaseDetails details = DatabaseTracker::tracker().detailsForNameAndOrigin(d->name, d->origin.get());
return details.displayName();
#else
return QString();
#endif
}
/*!
Returns the expected size of the database in bytes as defined by the web author.
*/
qint64 QWebDatabase::expectedSize() const
{
#if ENABLE(DATABASE)
DatabaseDetails details = DatabaseTracker::tracker().detailsForNameAndOrigin(d->name, d->origin.get());
return details.expectedUsage();
#else
return 0;
#endif
}
/*!
Returns the current size of the database in bytes.
*/
qint64 QWebDatabase::size() const
{
#if ENABLE(DATABASE)
DatabaseDetails details = DatabaseTracker::tracker().detailsForNameAndOrigin(d->name, d->origin.get());
return details.currentUsage();
#else
return 0;
#endif
}
/*!
\internal
*/
QWebDatabase::QWebDatabase(QWebDatabasePrivate* priv)
{
d = priv;
}
/*!
Returns the file name of the web database.
The name can be used to access the database through the QtSql database module, for example:
\code
QWebDatabase webdb = ...
QSqlDatabase sqldb = QSqlDatabase::addDatabase("QSQLITE", "myconnection");
sqldb.setDatabaseName(webdb.fileName());
if (sqldb.open()) {
QStringList tables = sqldb.tables();
...
}
\endcode
\note Concurrent access to a database from multiple threads or processes
is not very efficient because Sqlite is used as WebKit's database backend.
*/
QString QWebDatabase::fileName() const
{
#if ENABLE(DATABASE)
return DatabaseTracker::tracker().fullPathForDatabase(d->origin.get(), d->name, false);
#else
return QString();
#endif
}
/*!
Returns the databases's security origin.
*/
QWebSecurityOrigin QWebDatabase::origin() const
{
QWebSecurityOriginPrivate* priv = new QWebSecurityOriginPrivate(d->origin.get());
QWebSecurityOrigin origin(priv);
return origin;
}
/*!
Removes the database, \a db, from its security origin. All data stored in this database
will be destroyed.
*/
void QWebDatabase::removeDatabase(const QWebDatabase &db)
{
#if ENABLE(DATABASE)
DatabaseTracker::tracker().deleteDatabase(db.d->origin.get(), db.d->name);
#endif
}
/*!
Destroys the web database object. The data within this database is \b not destroyed.
*/
QWebDatabase::~QWebDatabase()
{
}
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