1/***************************************************************************
2 * Copyright (C) 2005-2014 by the Quassel Project *
3 * devel@quassel-irc.org *
4 * *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) version 3. *
9 * *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
14 * *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program; if not, write to the *
17 * Free Software Foundation, Inc., *
18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
19 ***************************************************************************/
20
21#include <QMetaProperty>
22
23#include <QDebug>
24
25#include "syncableobject.h"
26
27#include "signalproxy.h"
28#include "util.h"
29
30INIT_SYNCABLE_OBJECT(SyncableObject)
31SyncableObject::SyncableObject(QObject *parent)
32 : QObject(parent),
33 _initialized(false),
34 _allowClientUpdates(false)
35{
36}
37
38
39SyncableObject::SyncableObject(const QString &objectName, QObject *parent)
40 : QObject(parent),
41 _initialized(false),
42 _allowClientUpdates(false)
43{
44 setObjectName(objectName);
45}
46
47
48SyncableObject::SyncableObject(const SyncableObject &other, QObject *parent)
49 : QObject(parent),
50 _initialized(other._initialized),
51 _allowClientUpdates(other._allowClientUpdates)
52{
53}
54
55
56SyncableObject::~SyncableObject()
57{
58 QList<SignalProxy *>::iterator proxyIter = _signalProxies.begin();
59 while (proxyIter != _signalProxies.end()) {
60 SignalProxy *proxy = (*proxyIter);
61 proxyIter = _signalProxies.erase(proxyIter);
62 proxy->stopSynchronize(this);
63 }
64}
65
66
67SyncableObject &SyncableObject::operator=(const SyncableObject &other)
68{
69 if (this == &other)
70 return *this;
71
72 _initialized = other._initialized;
73 _allowClientUpdates = other._allowClientUpdates;
74 return *this;
75}
76
77
78bool SyncableObject::isInitialized() const
79{
80 return _initialized;
81}
82
83
84void SyncableObject::setInitialized()
85{
86 _initialized = true;
87 emit initDone();
88}
89
90
91QVariantMap SyncableObject::toVariantMap()
92{
93 QVariantMap properties;
94
95 const QMetaObject *meta = metaObject();
96
97 // we collect data from properties
98 QMetaProperty prop;
99 QString propName;
100 for (int i = 0; i < meta->propertyCount(); i++) {
101 prop = meta->property(i);
102 propName = QString(prop.name());
103 if (propName == "objectName")
104 continue;
105 properties[propName] = prop.read(this);
106 }
107
108 // ...as well as methods, which have names starting with "init"
109 for (int i = 0; i < meta->methodCount(); i++) {
110 QMetaMethod method = meta->method(i);
111 QString methodname(SignalProxy::ExtendedMetaObject::methodName(method));
112 if (!methodname.startsWith("init") || methodname.startsWith("initSet") || methodname.startsWith("initDone"))
113 continue;
114
115 QVariant::Type variantType = QVariant::nameToType(method.typeName());
116 if (variantType == QVariant::Invalid && !QByteArray(method.typeName()).isEmpty()) {
117#if QT_VERSION >= 0x050000
118 qWarning() << "SyncableObject::toVariantMap(): cannot fetch init data for:" << this << method.methodSignature() << "- Returntype is unknown to Qt's MetaSystem:" << QByteArray(method.typeName());
119#else
120 qWarning() << "SyncableObject::toVariantMap(): cannot fetch init data for:" << this << method.signature() << "- Returntype is unknown to Qt's MetaSystem:" << QByteArray(method.typeName());
121#endif
122 continue;
123 }
124
125 QVariant value(variantType, (const void *)0);
126 QGenericReturnArgument genericvalue = QGenericReturnArgument(method.typeName(), value.data());
127 QMetaObject::invokeMethod(this, methodname.toLatin1(), genericvalue);
128
129 properties[SignalProxy::ExtendedMetaObject::methodBaseName(method)] = value;
130 }
131 return properties;
132}
133
134
135void SyncableObject::fromVariantMap(const QVariantMap &properties)
136{
137 const QMetaObject *meta = metaObject();
138
139 QVariantMap::const_iterator iterator = properties.constBegin();
140 QString propName;
141 while (iterator != properties.constEnd()) {
142 propName = iterator.key();
143 if (propName == "objectName") {
144 iterator++;
145 continue;
146 }
147
148 int propertyIndex = meta->indexOfProperty(propName.toLatin1());
149
150 if (propertyIndex == -1 || !meta->property(propertyIndex).isWritable())
151 setInitValue(propName, iterator.value());
152 else
153 setProperty(propName.toLatin1(), iterator.value());
154 // qDebug() << "<<< SYNC:" << name << iterator.value();
155 iterator++;
156 }
157}
158
159
160bool SyncableObject::setInitValue(const QString &property, const QVariant &value)
161{
162 QString handlername = QString("initSet") + property;
163 handlername[7] = handlername[7].toUpper();
164
165 QString methodSignature = QString("%1(%2)").arg(handlername).arg(value.typeName());
166 int methodIdx = metaObject()->indexOfMethod(methodSignature.toLatin1().constData());
167 if (methodIdx < 0) {
168 QByteArray normedMethodName = QMetaObject::normalizedSignature(methodSignature.toLatin1().constData());
169 methodIdx = metaObject()->indexOfMethod(normedMethodName.constData());
170 }
171 if (methodIdx < 0) {
172 return false;
173 }
174
175 QGenericArgument param(value.typeName(), value.constData());
176 return QMetaObject::invokeMethod(this, handlername.toLatin1(), param);
177}
178
179
180void SyncableObject::renameObject(const QString &newName)
181{
182 const QString oldName = objectName();
183 if (oldName != newName) {
184 setObjectName(newName);
185 foreach(SignalProxy *proxy, _signalProxies) {
186 proxy->renameObject(this, newName, oldName);
187 }
188 }
189}
190
191
192void SyncableObject::update(const QVariantMap &properties)
193{
194 fromVariantMap(properties);
195 SYNC(ARG(properties))
196 emit updated();
197}
198
199
200void SyncableObject::requestUpdate(const QVariantMap &properties)
201{
202 if (allowClientUpdates()) {
203 update(properties);
204 }
205 REQUEST(ARG(properties))
206}
207
208
209void SyncableObject::sync_call__(SignalProxy::ProxyMode modeType, const char *funcname, ...) const
210{
211 //qDebug() << Q_FUNC_INFO << modeType << funcname;
212 foreach(SignalProxy *proxy, _signalProxies) {
213 va_list ap;
214 va_start(ap, funcname);
215 proxy->sync_call__(this, modeType, funcname, ap);
216 va_end(ap);
217 }
218}
219
220
221void SyncableObject::synchronize(SignalProxy *proxy)
222{
223 if (_signalProxies.contains(proxy))
224 return;
225 _signalProxies << proxy;
226}
227
228
229void SyncableObject::stopSynchronize(SignalProxy *proxy)
230{
231 for (int i = 0; i < _signalProxies.count(); i++) {
232 if (_signalProxies[i] == proxy) {
233 _signalProxies.removeAt(i);
234 break;
235 }
236 }
237}
238