util/src/script/api/qscriptvalue.h
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     1 /****************************************************************************
       
     2 **
       
     3 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
       
     4 ** All rights reserved.
       
     5 ** Contact: Nokia Corporation (qt-info@nokia.com)
       
     6 **
       
     7 ** This file is part of the QtScript module of the Qt Toolkit.
       
     8 **
       
     9 ** $QT_BEGIN_LICENSE:LGPL-ONLY$
       
    10 ** GNU Lesser General Public License Usage
       
    11 ** This file may be used under the terms of the GNU Lesser
       
    12 ** General Public License version 2.1 as published by the Free Software
       
    13 ** Foundation and appearing in the file LICENSE.LGPL included in the
       
    14 ** packaging of this file.  Please review the following information to
       
    15 ** ensure the GNU Lesser General Public License version 2.1 requirements
       
    16 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
       
    17 **
       
    18 ** If you have questions regarding the use of this file, please contact
       
    19 ** Nokia at qt-info@nokia.com.
       
    20 ** $QT_END_LICENSE$
       
    21 **
       
    22 ****************************************************************************/
       
    23 
       
    24 #ifndef QSCRIPTVALUE_H
       
    25 #define QSCRIPTVALUE_H
       
    26 
       
    27 #include <QtCore/qstring.h>
       
    28 
       
    29 #include <QtCore/qlist.h>
       
    30 #include <QtCore/qsharedpointer.h>
       
    31 
       
    32 QT_BEGIN_HEADER
       
    33 
       
    34 QT_BEGIN_NAMESPACE
       
    35 
       
    36 QT_MODULE(Script)
       
    37 
       
    38 class QScriptClass;
       
    39 class QScriptValue;
       
    40 class QScriptEngine;
       
    41 class QScriptString;
       
    42 class QVariant;
       
    43 class QObject;
       
    44 struct QMetaObject;
       
    45 class QDateTime;
       
    46 #ifndef QT_NO_REGEXP
       
    47 class QRegExp;
       
    48 #endif
       
    49 
       
    50 typedef QList<QScriptValue> QScriptValueList;
       
    51 
       
    52 typedef double qsreal;
       
    53 
       
    54 class QScriptValuePrivate;
       
    55 class QScriptEnginePrivate;
       
    56 struct QScriptValuePrivatePointerDeleter;
       
    57 class Q_SCRIPT_EXPORT QScriptValue
       
    58 {
       
    59 public:
       
    60     enum ResolveFlag {
       
    61         ResolveLocal        = 0x00,
       
    62         ResolvePrototype    = 0x01,
       
    63         ResolveScope        = 0x02,
       
    64         ResolveFull         = ResolvePrototype | ResolveScope
       
    65     };
       
    66 
       
    67     Q_DECLARE_FLAGS(ResolveFlags, ResolveFlag)
       
    68 
       
    69     enum PropertyFlag {
       
    70         ReadOnly            = 0x00000001,
       
    71         Undeletable         = 0x00000002,
       
    72         SkipInEnumeration   = 0x00000004,
       
    73 
       
    74         PropertyGetter      = 0x00000008,
       
    75         PropertySetter      = 0x00000010,
       
    76 
       
    77         QObjectMember       = 0x00000020,
       
    78 
       
    79         KeepExistingFlags   = 0x00000800,
       
    80 
       
    81         UserRange           = 0xff000000            // Users may use these as they see fit.
       
    82     };
       
    83     Q_DECLARE_FLAGS(PropertyFlags, PropertyFlag)
       
    84 
       
    85     enum SpecialValue {
       
    86         NullValue,
       
    87         UndefinedValue
       
    88     };
       
    89 
       
    90 public:
       
    91     QScriptValue();
       
    92     ~QScriptValue();
       
    93     QScriptValue(const QScriptValue &other);
       
    94     QScriptValue(QScriptEngine *engine, SpecialValue val);
       
    95     QScriptValue(QScriptEngine *engine, bool val);
       
    96     QScriptValue(QScriptEngine *engine, int val);
       
    97     QScriptValue(QScriptEngine *engine, uint val);
       
    98     QScriptValue(QScriptEngine *engine, qsreal val);
       
    99     QScriptValue(QScriptEngine *engine, const QString &val);
       
   100 #ifndef QT_NO_CAST_FROM_ASCII
       
   101     QT_ASCII_CAST_WARN_CONSTRUCTOR QScriptValue(QScriptEngine *engine, const char *val);
       
   102 #endif
       
   103 
       
   104     QScriptValue(SpecialValue value);
       
   105     QScriptValue(bool value);
       
   106     QScriptValue(int value);
       
   107     QScriptValue(uint value);
       
   108     QScriptValue(qsreal value);
       
   109     QScriptValue(const QString &value);
       
   110     QScriptValue(const QLatin1String &value);
       
   111 #ifndef QT_NO_CAST_FROM_ASCII
       
   112     QT_ASCII_CAST_WARN_CONSTRUCTOR QScriptValue(const char *value);
       
   113 #endif
       
   114 
       
   115     QScriptValue &operator=(const QScriptValue &other);
       
   116 
       
   117     QScriptEngine *engine() const;
       
   118 
       
   119     bool isValid() const;
       
   120     bool isBool() const;
       
   121     bool isBoolean() const;
       
   122     bool isNumber() const;
       
   123     bool isFunction() const;
       
   124     bool isNull() const;
       
   125     bool isString() const;
       
   126     bool isUndefined() const;
       
   127     bool isVariant() const;
       
   128     bool isQObject() const;
       
   129     bool isQMetaObject() const;
       
   130     bool isObject() const;
       
   131     bool isDate() const;
       
   132     bool isRegExp() const;
       
   133     bool isArray() const;
       
   134     bool isError() const;
       
   135 
       
   136     QString toString() const;
       
   137     qsreal toNumber() const;
       
   138     bool toBool() const;
       
   139     bool toBoolean() const;
       
   140     qsreal toInteger() const;
       
   141     qint32 toInt32() const;
       
   142     quint32 toUInt32() const;
       
   143     quint16 toUInt16() const;
       
   144     QVariant toVariant() const;
       
   145     QObject *toQObject() const;
       
   146     const QMetaObject *toQMetaObject() const;
       
   147     QScriptValue toObject() const;
       
   148     QDateTime toDateTime() const;
       
   149 #ifndef QT_NO_REGEXP
       
   150     QRegExp toRegExp() const;
       
   151 #endif
       
   152 
       
   153     bool instanceOf(const QScriptValue &other) const;
       
   154 
       
   155     bool lessThan(const QScriptValue &other) const;
       
   156     bool equals(const QScriptValue &other) const;
       
   157     bool strictlyEquals(const QScriptValue &other) const;
       
   158 
       
   159     QScriptValue prototype() const;
       
   160     void setPrototype(const QScriptValue &prototype);
       
   161 
       
   162     QScriptValue scope() const;
       
   163     void setScope(const QScriptValue &scope);
       
   164 
       
   165     QScriptValue property(const QString &name,
       
   166                           const ResolveFlags &mode = ResolvePrototype) const;
       
   167     void setProperty(const QString &name, const QScriptValue &value,
       
   168                      const PropertyFlags &flags = KeepExistingFlags);
       
   169 
       
   170     QScriptValue property(quint32 arrayIndex,
       
   171                           const ResolveFlags &mode = ResolvePrototype) const;
       
   172     void setProperty(quint32 arrayIndex, const QScriptValue &value,
       
   173                      const PropertyFlags &flags = KeepExistingFlags);
       
   174 
       
   175     QScriptValue property(const QScriptString &name,
       
   176                           const ResolveFlags &mode = ResolvePrototype) const;
       
   177     void setProperty(const QScriptString &name, const QScriptValue &value,
       
   178                      const PropertyFlags &flags = KeepExistingFlags);
       
   179 
       
   180     QScriptValue::PropertyFlags propertyFlags(
       
   181         const QString &name, const ResolveFlags &mode = ResolvePrototype) const;
       
   182     QScriptValue::PropertyFlags propertyFlags(
       
   183         const QScriptString &name, const ResolveFlags &mode = ResolvePrototype) const;
       
   184 
       
   185     QScriptValue call(const QScriptValue &thisObject = QScriptValue(),
       
   186                       const QScriptValueList &args = QScriptValueList());
       
   187     QScriptValue call(const QScriptValue &thisObject,
       
   188                       const QScriptValue &arguments);
       
   189     QScriptValue construct(const QScriptValueList &args = QScriptValueList());
       
   190     QScriptValue construct(const QScriptValue &arguments);
       
   191 
       
   192     QScriptValue data() const;
       
   193     void setData(const QScriptValue &data);
       
   194 
       
   195     QScriptClass *scriptClass() const;
       
   196     void setScriptClass(QScriptClass *scriptClass);
       
   197 
       
   198     qint64 objectId() const;
       
   199 
       
   200 private:
       
   201     // force compile error, prevent QScriptValue(bool) to be called
       
   202     QScriptValue(void *);
       
   203     // force compile error, prevent QScriptValue(QScriptEngine*, bool) to be called
       
   204     QScriptValue(QScriptEngine *, void *);
       
   205 
       
   206     QScriptValue(QScriptValuePrivate*);
       
   207 
       
   208 private:
       
   209     QExplicitlySharedDataPointer<QScriptValuePrivate> d_ptr;
       
   210 
       
   211     Q_DECLARE_PRIVATE(QScriptValue)
       
   212 
       
   213     friend class QScriptEnginePrivate;
       
   214 };
       
   215 
       
   216 Q_DECLARE_OPERATORS_FOR_FLAGS(QScriptValue::ResolveFlags)
       
   217 Q_DECLARE_OPERATORS_FOR_FLAGS(QScriptValue::PropertyFlags)
       
   218 
       
   219 QT_END_NAMESPACE
       
   220 
       
   221 QT_END_HEADER
       
   222 
       
   223 #endif