1/****************************************************************************
2**
3** Copyright (C) 2015 The Qt Company Ltd.
4** Contact: http://www.qt.io/licensing/
5**
6** This file is part of the QtVersitOrganizer module of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:LGPL21$
9** Commercial License Usage
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11** accordance with the commercial license agreement provided with the
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17** GNU Lesser General Public License Usage
18** Alternatively, this file may be used under the terms of the GNU Lesser
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20** Software Foundation and appearing in the file LICENSE.LGPLv21 and
21** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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26** As a special exception, The Qt Company gives you certain additional
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30** $QT_END_LICENSE$
31**
32****************************************************************************/
33
34#include "qversitorganizerpluginloader_p.h"
35#include "qversitorganizerpluginsearch_p.h"
36
37#include <QtCore/qpluginloader.h>
38
39#include "qversitorganizerhandler.h"
40#include "qversittimezonehandler.h"
41
42QT_BEGIN_NAMESPACE_VERSITORGANIZER
43
44/*!
45 A less-than function for factory indices (see QVersitOrganizerHandlerFactory::index()).
46 Positive values come first (ascendingly), then zero, then negative values (ascendingly).
47 */
48bool factoryLessThan(QVersitOrganizerHandlerFactory* a, QVersitOrganizerHandlerFactory* b) {
49 if ((a->index() > 0 && b->index() > 0)
50 || (a->index() < 0 && b->index() < 0))
51 // same sign
52 return a->index() < b->index();
53 else
54 // a is zero
55 // or b is zero
56 // or opposite sign
57 return b->index() < a->index();
58}
59
60QVersitOrganizerPluginLoader* QVersitOrganizerPluginLoader::mInstance = NULL;
61
62/*!
63 * \class QVersitOrganizerPluginLoader
64 * \internal
65 * This is a singleton class that loads Versit plugins for organizer item processing
66 */
67
68QVersitOrganizerPluginLoader::QVersitOrganizerPluginLoader() : mTimeZoneHandler(NULL)
69{
70}
71
72/*!
73 * Returns the singleton instance of the QVersitOrganizerPluginLoader.
74 */
75QVersitOrganizerPluginLoader* QVersitOrganizerPluginLoader::instance()
76{
77 if (!mInstance)
78 mInstance = new QVersitOrganizerPluginLoader;
79 return mInstance;
80}
81
82void QVersitOrganizerPluginLoader::loadPlugins() {
83 QStringList plugins = mobilityPlugins(QStringLiteral("versit"));
84 if (plugins != mPluginPaths) {
85 mPluginPaths = plugins;
86
87 foreach (const QString& pluginPath, mPluginPaths) {
88 QPluginLoader qpl(pluginPath);
89 QObject* plugin = qpl.instance();
90 QVersitOrganizerHandlerFactory* organizerPlugin =
91 qobject_cast<QVersitOrganizerHandlerFactory*>(object: plugin);
92 if (organizerPlugin && !mLoadedFactories.contains(value: organizerPlugin->name())) {
93 mLoadedFactories.insert(value: organizerPlugin->name());
94 mOrganizerHandlerFactories.append(t: organizerPlugin);
95 } else if (!mTimeZoneHandler) {
96 QVersitTimeZoneHandler* timeZonePlugin =
97 qobject_cast<QVersitTimeZoneHandler*>(object: plugin);
98 if (timeZonePlugin) {
99 mTimeZoneHandler = timeZonePlugin;
100 }
101 }
102 }
103 std::sort(first: mOrganizerHandlerFactories.begin(), last: mOrganizerHandlerFactories.end(), comp: factoryLessThan);
104 }
105}
106
107/*!
108 * Creates and returns handlers from the plugin. If \a profile is the empty string, only handlers
109 * with an empty profile list are returned. If \a profile is nonempty, only handlers with either
110 * an empty profile list or a profile list that contains the given \a profile are returned.
111 *
112 * The caller is responsible for deleting all returned handlers.
113 */
114QList<QVersitOrganizerHandler*> QVersitOrganizerPluginLoader::createOrganizerHandlers(const QString& profile)
115{
116 loadPlugins();
117
118 QList<QVersitOrganizerHandler*> handlers;
119 foreach (const QVersitOrganizerHandlerFactory* factory, mOrganizerHandlerFactories) {
120 if (factory->profiles().isEmpty() ||
121 (!profile.isEmpty() && factory->profiles().contains(value: profile))) {
122 QVersitOrganizerHandler* handler = factory->createHandler();
123 handlers.append(t: handler);
124 }
125 }
126 return handlers;
127}
128
129QVersitTimeZoneHandler* QVersitOrganizerPluginLoader::timeZoneHandler()
130{
131 loadPlugins();
132
133 return mTimeZoneHandler;
134}
135
136QT_END_NAMESPACE_VERSITORGANIZER
137

source code of qtpim/src/versitorganizer/qversitorganizerpluginloader_p.cpp