| 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 | |