1 /* 2 Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies) 3 4 This library is free software; you can redistribute it and/or 5 modify it under the terms of the GNU Library General Public 6 License as published by the Free Software Foundation; either 7 version 2 of the License, or (at your option) any later version. 8 9 This library is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 Library General Public License for more details. 13 14 You should have received a copy of the GNU Library General Public License 15 along with this library; see the file COPYING.LIB. If not, write to 16 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 17 Boston, MA 02110-1301, USA. 18 */ 19 20 #ifndef qscriptvalueiterator_p_h 21 #define qscriptvalueiterator_p_h 22 23 #include "qscriptvalue_p.h" 24 #include <JavaScriptCore/JavaScript.h> 25 #include <JavaScriptCore/JSRetainPtr.h> 26 #include <QtCore/qshareddata.h> 27 #include <QtCore/qvector.h> 28 29 class QScriptValueIteratorPrivate: public QSharedData { 30 public: 31 inline QScriptValueIteratorPrivate(const QScriptValuePrivate* value); 32 inline ~QScriptValueIteratorPrivate(); 33 34 inline bool hasNext(); 35 inline void next(); 36 37 inline bool hasPrevious(); 38 inline void previous(); 39 40 inline QString name() const; 41 inline QScriptStringPrivate* scriptName() const; 42 43 inline QScriptValuePrivate* value() const; 44 inline void setValue(const QScriptValuePrivate* value); 45 46 inline void remove(); 47 48 inline void toFront(); 49 inline void toBack(); 50 51 QScriptValue::PropertyFlags flags() const; 52 53 inline bool isValid() const; 54 private: 55 inline QScriptEnginePrivate* engine() const; 56 57 QExplicitlySharedDataPointer<QScriptValuePrivate> m_object; 58 QVector<JSStringRef> m_names; 59 QMutableVectorIterator<JSStringRef> m_idx; 60 }; 61 62 inline QScriptValueIteratorPrivate::QScriptValueIteratorPrivate(const QScriptValuePrivate* value) 63 : m_object(const_cast<QScriptValuePrivate*>(value)) 64 , m_idx(m_names) 65 { 66 if (m_object->isObject()) { 67 m_names = engine()->objectGetOwnPropertyNames(*m_object); 68 m_idx = m_names; 69 } else 70 m_object = 0; 71 } 72 73 inline QScriptValueIteratorPrivate::~QScriptValueIteratorPrivate() 74 { 75 QVector<JSStringRef>::const_iterator i = m_names.constBegin(); 76 for (; i != m_names.constEnd(); ++i) 77 JSStringRelease(*i); 78 } 79 80 inline bool QScriptValueIteratorPrivate::hasNext() 81 { 82 return m_idx.hasNext(); 83 } 84 85 inline void QScriptValueIteratorPrivate::next() 86 { 87 // FIXME (Qt5) This method should return a value (QTBUG-11226). 88 m_idx.next(); 89 } 90 91 inline bool QScriptValueIteratorPrivate::hasPrevious() 92 { 93 return m_idx.hasPrevious(); 94 } 95 96 inline void QScriptValueIteratorPrivate::previous() 97 { 98 m_idx.previous(); 99 } 100 101 inline QString QScriptValueIteratorPrivate::name() const 102 { 103 if (!isValid()) 104 return QString(); 105 return QScriptConverter::toString(m_idx.value()); 106 } 107 108 inline QScriptStringPrivate* QScriptValueIteratorPrivate::scriptName() const 109 { 110 if (!isValid()) 111 return new QScriptStringPrivate(); 112 return new QScriptStringPrivate(QScriptConverter::toString(m_idx.value())); 113 } 114 115 inline QScriptValuePrivate* QScriptValueIteratorPrivate::value() const 116 { 117 if (!isValid()) 118 return new QScriptValuePrivate(); 119 JSValueRef exception = 0; 120 JSValueRef value = m_object->property(m_idx.value(), &exception); 121 engine()->setException(exception); 122 return new QScriptValuePrivate(engine(), value); 123 } 124 125 inline void QScriptValueIteratorPrivate::setValue(const QScriptValuePrivate* value) 126 { 127 if (!isValid()) 128 return; 129 JSValueRef exception = 0; 130 m_object->setProperty(m_idx.value(), *value, /* flags */ 0, &exception); 131 engine()->setException(exception); 132 } 133 134 inline void QScriptValueIteratorPrivate::remove() 135 { 136 if (!isValid()) 137 return; 138 JSValueRef exception = 0; 139 m_object->deleteProperty(m_idx.value(), &exception); 140 engine()->setException(exception); 141 m_idx.remove(); 142 } 143 144 inline void QScriptValueIteratorPrivate::toFront() 145 { 146 m_idx.toFront(); 147 } 148 149 inline void QScriptValueIteratorPrivate::toBack() 150 { 151 m_idx.toBack(); 152 } 153 154 QScriptValue::PropertyFlags QScriptValueIteratorPrivate::flags() const 155 { 156 if (!isValid()) 157 return QScriptValue::PropertyFlags(0); 158 return m_object->propertyFlags(m_idx.value(), QScriptValue::ResolveLocal); 159 } 160 161 inline bool QScriptValueIteratorPrivate::isValid() const 162 { 163 return m_object; 164 } 165 166 inline QScriptEnginePrivate* QScriptValueIteratorPrivate::engine() const 167 { 168 Q_ASSERT(isValid()); 169 return m_object->engine(); 170 } 171 172 #endif // qscriptvalueiterator_p_h 173
