summaryrefslogtreecommitdiffstats
path: root/src/3rdparty/webkit/WebKit/qt/Api/qwebdatabase.cpp
blob: 2db9cd006afe1c2de6f1a0351eeec535af517a2e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
/*
    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()
{
}