| 1 | /**************************************************************************** | 
| 2 | ** | 
| 3 | ** Copyright (C) 2016 The Qt Company Ltd. | 
| 4 | ** Contact: https://www.qt.io/licensing/ | 
| 5 | ** | 
| 6 | ** This file is part of the QtQml module of the Qt Toolkit. | 
| 7 | ** | 
| 8 | ** $QT_BEGIN_LICENSE:LGPL$ | 
| 9 | ** Commercial License Usage | 
| 10 | ** Licensees holding valid commercial Qt licenses may use this file in | 
| 11 | ** accordance with the commercial license agreement provided with the | 
| 12 | ** Software or, alternatively, in accordance with the terms contained in | 
| 13 | ** a written agreement between you and The Qt Company. For licensing terms | 
| 14 | ** and conditions see https://www.qt.io/terms-conditions. For further | 
| 15 | ** information use the contact form at https://www.qt.io/contact-us. | 
| 16 | ** | 
| 17 | ** GNU Lesser General Public License Usage | 
| 18 | ** Alternatively, this file may be used under the terms of the GNU Lesser | 
| 19 | ** General Public License version 3 as published by the Free Software | 
| 20 | ** Foundation and appearing in the file LICENSE.LGPL3 included in the | 
| 21 | ** packaging of this file. Please review the following information to | 
| 22 | ** ensure the GNU Lesser General Public License version 3 requirements | 
| 23 | ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. | 
| 24 | ** | 
| 25 | ** GNU General Public License Usage | 
| 26 | ** Alternatively, this file may be used under the terms of the GNU | 
| 27 | ** General Public License version 2.0 or (at your option) the GNU General | 
| 28 | ** Public license version 3 or any later version approved by the KDE Free | 
| 29 | ** Qt Foundation. The licenses are as published by the Free Software | 
| 30 | ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 | 
| 31 | ** included in the packaging of this file. Please review the following | 
| 32 | ** information to ensure the GNU General Public License requirements will | 
| 33 | ** be met: https://www.gnu.org/licenses/gpl-2.0.html and | 
| 34 | ** https://www.gnu.org/licenses/gpl-3.0.html. | 
| 35 | ** | 
| 36 | ** $QT_END_LICENSE$ | 
| 37 | ** | 
| 38 | ****************************************************************************/ | 
| 39 |  | 
| 40 | #include "qqmldebugservice_p.h" | 
| 41 | #include "qqmldebugconnector_p.h" | 
| 42 | #include <private/qqmldata_p.h> | 
| 43 | #include <private/qqmlcontext_p.h> | 
| 44 |  | 
| 45 | #include <QtCore/QDebug> | 
| 46 | #include <QtCore/QStringList> | 
| 47 | #include <QtCore/QFileInfo> | 
| 48 |  | 
| 49 | QT_BEGIN_NAMESPACE | 
| 50 |  | 
| 51 | class QQmlDebugServer; | 
| 52 |  | 
| 53 | class QQmlDebugServicePrivate : public QObjectPrivate | 
| 54 | { | 
| 55 |     Q_DECLARE_PUBLIC(QQmlDebugService) | 
| 56 | public: | 
| 57 |     QQmlDebugServicePrivate(const QString &name, float version); | 
| 58 |  | 
| 59 |     const QString name; | 
| 60 |     const float version; | 
| 61 |     QQmlDebugService::State state; | 
| 62 | }; | 
| 63 |  | 
| 64 | QQmlDebugServicePrivate::QQmlDebugServicePrivate(const QString &name, float version) : | 
| 65 |     name(name), version(version), state(QQmlDebugService::NotConnected) | 
| 66 | { | 
| 67 | } | 
| 68 |  | 
| 69 | QQmlDebugService::QQmlDebugService(const QString &name, float version, QObject *parent) | 
| 70 |     : QObject(*(new QQmlDebugServicePrivate(name, version)), parent) | 
| 71 | { | 
| 72 |     Q_D(QQmlDebugService); | 
| 73 |     QQmlDebugConnector *server = QQmlDebugConnector::instance(); | 
| 74 |  | 
| 75 |     if (!server) | 
| 76 |         return; | 
| 77 |  | 
| 78 |     if (server->service(name: d->name)) { | 
| 79 |         qWarning() << "QQmlDebugService: Conflicting plugin name"  << d->name; | 
| 80 |     } else { | 
| 81 |         server->addService(name: d->name, service: this); | 
| 82 |     } | 
| 83 | } | 
| 84 |  | 
| 85 | QQmlDebugService::~QQmlDebugService() | 
| 86 | { | 
| 87 |     Q_D(QQmlDebugService); | 
| 88 |     QQmlDebugConnector *server = QQmlDebugConnector::instance(); | 
| 89 |  | 
| 90 |     if (!server) | 
| 91 |         return; | 
| 92 |  | 
| 93 |     if (server->service(name: d->name) != this) | 
| 94 |         qWarning() << "QQmlDebugService: Plugin"  << d->name << "is not registered." ; | 
| 95 |     else | 
| 96 |         server->removeService(name: d->name); | 
| 97 | } | 
| 98 |  | 
| 99 | const QString &QQmlDebugService::name() const | 
| 100 | { | 
| 101 |     Q_D(const QQmlDebugService); | 
| 102 |     return d->name; | 
| 103 | } | 
| 104 |  | 
| 105 | float QQmlDebugService::version() const | 
| 106 | { | 
| 107 |     Q_D(const QQmlDebugService); | 
| 108 |     return d->version; | 
| 109 | } | 
| 110 |  | 
| 111 | QQmlDebugService::State QQmlDebugService::state() const | 
| 112 | { | 
| 113 |     Q_D(const QQmlDebugService); | 
| 114 |     return d->state; | 
| 115 | } | 
| 116 |  | 
| 117 | void QQmlDebugService::setState(QQmlDebugService::State newState) | 
| 118 | { | 
| 119 |     Q_D(QQmlDebugService); | 
| 120 |     d->state = newState; | 
| 121 | } | 
| 122 |  | 
| 123 | namespace { | 
| 124 | class ObjectReferenceHash : public QObject | 
| 125 | { | 
| 126 |     Q_OBJECT | 
| 127 | public: | 
| 128 |     ObjectReferenceHash() : nextId(0) {} | 
| 129 |  | 
| 130 |     QHash<QObject *, int> objects; | 
| 131 |     QHash<int, QObject *> ids; | 
| 132 |  | 
| 133 |     int nextId; | 
| 134 |  | 
| 135 |     void remove(QObject *obj); | 
| 136 | }; | 
| 137 | } | 
| 138 | Q_GLOBAL_STATIC(ObjectReferenceHash, objectReferenceHash) | 
| 139 |  | 
| 140 | void ObjectReferenceHash::remove(QObject *obj) | 
| 141 | { | 
| 142 |     QHash<QObject *, int>::Iterator iter = objects.find(akey: obj); | 
| 143 |     if (iter != objects.end()) { | 
| 144 |         ids.remove(akey: iter.value()); | 
| 145 |         objects.erase(it: iter); | 
| 146 |     } | 
| 147 | } | 
| 148 |  | 
| 149 | /*! | 
| 150 |     Returns a unique id for \a object.  Calling this method multiple times | 
| 151 |     for the same object will return the same id. | 
| 152 | */ | 
| 153 | int QQmlDebugService::idForObject(QObject *object) | 
| 154 | { | 
| 155 |     if (!object) | 
| 156 |         return -1; | 
| 157 |  | 
| 158 |     ObjectReferenceHash *hash = objectReferenceHash(); | 
| 159 |     QHash<QObject *, int>::Iterator iter = hash->objects.find(akey: object); | 
| 160 |  | 
| 161 |     if (iter == hash->objects.end()) { | 
| 162 |         int id = hash->nextId++; | 
| 163 |         hash->ids.insert(akey: id, avalue: object); | 
| 164 |         iter = hash->objects.insert(akey: object, avalue: id); | 
| 165 |         connect(sender: object, signal: &QObject::destroyed, receiver: hash, slot: &ObjectReferenceHash::remove); | 
| 166 |     } | 
| 167 |     return iter.value(); | 
| 168 | } | 
| 169 |  | 
| 170 | /*! | 
| 171 |     Returns the mapping of objects to unique \a ids, created through calls to idForObject(). | 
| 172 | */ | 
| 173 | const QHash<int, QObject *> &QQmlDebugService::objectsForIds() | 
| 174 | { | 
| 175 |     return objectReferenceHash()->ids; | 
| 176 | } | 
| 177 |  | 
| 178 | QT_END_NAMESPACE | 
| 179 |  | 
| 180 | #include "qqmldebugservice.moc" | 
| 181 | #include "moc_qqmldebugservice_p.cpp" | 
| 182 |  |