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KJS-API

kjsobject.cpp

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00001 /*
00002  *  This file is part of the KDE libraries
00003  *  Copyright (C) 2008 Harri Porten (porten@kde.org)
00004  *
00005  *  This library is free software; you can redistribute it and/or
00006  *  modify it under the terms of the GNU Library General Public
00007  *  License as published by the Free Software Foundation; either
00008  *  version 2 of the License, or (at your option) any later version.
00009  *
00010  *  This library is distributed in the hope that it will be useful,
00011  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00012  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013  *  Library General Public License for more details.
00014  *
00015  *  You should have received a copy of the GNU Library General Public License
00016  *  along with this library; see the file COPYING.LIB.  If not, write to
00017  *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00018  *  Boston, MA 02110-1301, USA.
00019  *
00020  */
00021 
00022 #include "kjsobject.h"
00023 #include "kjsprivate.h"
00024 #include "kjscontext.h"
00025 #include "kjs/value.h"
00026 #include "kjs/object.h"
00027 #include "kjs/protect.h"
00028 #include "kjs/ExecState.h"
00029 #include "kjs/JSVariableObject.h"
00030 
00031 #include <kdebug.h>
00032 #include <QDateTime>
00033 
00034 using namespace KJS;
00035 
00036 KJSObject::KJSObject()
00037     : hnd(JSVALUE_HANDLE(new JSObject()))
00038 {
00039     gcProtect(JSVALUE(this));
00040 }
00041 
00042 KJSObject::KJSObject(const KJSObject& o)
00043     : hnd(o.hnd)
00044 {
00045     gcProtectNullTolerant(JSVALUE(this));
00046 }
00047 
00048 KJSObject& KJSObject::operator=(const KJSObject& o)
00049 {
00050     gcUnprotectNullTolerant(JSVALUE(this));
00051 
00052     hnd = o.hnd;
00053     gcProtectNullTolerant(JSVALUE(this));
00054 
00055     return *this;
00056 }
00057 
00058 KJSObject::~KJSObject()
00059 {
00060     gcUnprotectNullTolerant(JSVALUE(this));
00061 }
00062 
00063 KJSNull::KJSNull()
00064     : KJSObject(JSVALUE_HANDLE(jsNull()))
00065 {
00066 }
00067 
00068 KJSUndefined::KJSUndefined()
00069     : KJSObject(JSVALUE_HANDLE(jsUndefined()))
00070 {
00071 }
00072 
00073 KJSBoolean::KJSBoolean(bool b)
00074     : KJSObject(JSVALUE_HANDLE(jsBoolean(b)))
00075 {
00076 }
00077 
00078 KJSNumber::KJSNumber(double d)
00079     : KJSObject(JSVALUE_HANDLE(jsNumber(d)))
00080 {
00081     gcProtect(JSVALUE(this));
00082 }
00083 
00084 KJSString::KJSString(const QString& s)
00085     : KJSObject(JSVALUE_HANDLE(jsString(toUString(s))))
00086 {
00087     gcProtect(JSVALUE(this));
00088 }
00089 
00090 KJSString::KJSString(const char* s)
00091     : KJSObject(JSVALUE_HANDLE(jsString(s)))
00092 {
00093     gcProtect(JSVALUE(this));
00094 }
00095 
00096 static JSValue* constructArrayHelper(ExecState* exec, int len)
00097 {
00098     JSObject* builtinArray = exec->lexicalInterpreter()->builtinArray();
00099     JSObject* newArray = builtinArray->construct(exec, List());
00100     newArray->put(exec, exec->propertyNames().length, jsNumber(len),
00101                   DontDelete|ReadOnly|DontEnum);
00102     return newArray;
00103 }
00104 
00105 KJSArray::KJSArray(KJSContext* ctx, int len)
00106     : KJSObject(JSVALUE_HANDLE(constructArrayHelper(EXECSTATE(ctx), len)))
00107 
00108 {
00109     gcProtect(JSVALUE(this));
00110 }
00111 
00112 static JSValue* constructDateHelper(KJSContext* ctx, const QDateTime& dt)
00113 {
00114     kWarning() << "converDateTimeHelper() not implemented, yet";
00115 
00116     // ### make call into data_object.cpp
00117 
00118     return jsNumber(42.0);
00119 }
00120 
00121 
00122 KJSDate::KJSDate(KJSContext* ctx, const QDateTime& dt)
00123     : KJSObject(JSVALUE_HANDLE(constructDateHelper(ctx, dt)))
00124 {
00125     gcProtect(JSVALUE(this));
00126 }
00127 
00128 bool KJSObject::isUndefined() const
00129 {
00130     return JSVALUE(this)->isUndefined();
00131 }
00132 
00133 bool KJSObject::isNull() const
00134 {
00135     return JSVALUE(this)->isNull();
00136 }
00137 
00138 bool KJSObject::isBoolean() const
00139 {
00140     return JSVALUE(this)->isBoolean();
00141 }
00142 
00143 bool KJSObject::isNumber() const
00144 {
00145     return JSVALUE(this)->isNumber();
00146 }
00147 
00148 bool KJSObject::isString() const
00149 {
00150     return JSVALUE(this)->isString();
00151 }
00152 
00153 bool KJSObject::isObject() const
00154 {
00155     return JSVALUE(this)->isObject();
00156 }
00157 
00158 bool KJSObject::toBoolean(KJSContext* ctx)
00159 {
00160     ExecState* exec = EXECSTATE(ctx);
00161     assert(exec);
00162     return JSVALUE(this)->toBoolean(exec);
00163 }
00164 
00165 double KJSObject::toNumber(KJSContext* ctx)
00166 {
00167     ExecState* exec = EXECSTATE(ctx);
00168     assert(exec);
00169     return JSVALUE(this)->toNumber(exec);
00170 }
00171 
00172 int KJSObject::toInt32(KJSContext* ctx)
00173 {
00174     ExecState* exec = EXECSTATE(ctx);
00175     assert(exec);
00176     return JSVALUE(this)->toInt32(exec);
00177 }
00178 
00179 QString KJSObject::toString(KJSContext* ctx)
00180 {
00181     ExecState* exec = EXECSTATE(ctx);
00182     assert(exec);
00183     return toQString(JSVALUE(this)->toString(exec));
00184 }
00185 
00186 KJSObject KJSObject::property(KJSContext* ctx, const QString& name)
00187 {
00188     JSValue* v = JSVALUE(this);
00189     assert(v);
00190     
00191 #if 0
00192     // would normally throw an exception
00193     if (v == jsUndefined || v == jsNull())
00194         return KJSUndefined();
00195 #endif
00196 
00197     ExecState* exec = EXECSTATE(ctx);
00198     JSObject* o = v->toObject(exec);
00199     JSValue* res = o->get(exec, toIdentifier(name));
00200 
00201     return KJSObject(JSVALUE_HANDLE(res));
00202 }
00203 
00204 void KJSObject::setProperty(KJSContext* ctx, const QString& name,
00205                             const KJSObject& value)
00206 {
00207     JSValue* v = JSVALUE(this);
00208     assert(v);
00209 
00210     ExecState* exec = EXECSTATE(ctx);
00211     JSObject* o = v->toObject(exec);
00212     o->put(exec, toIdentifier(name), JSVALUE(&value));
00213 }
00214 
00215 void KJSObject::setProperty(KJSContext* ctx, const QString& name, bool value)
00216 {
00217     setProperty(ctx, name, KJSBoolean(value));
00218 }
00219 
00220 void KJSObject::setProperty(KJSContext* ctx, const QString& name,
00221                             double value)
00222 {
00223     setProperty(ctx, name, KJSNumber(value));
00224 }
00225 
00226 void KJSObject::setProperty(KJSContext* ctx, const QString& name,
00227                             int value)
00228 {
00229     setProperty(ctx, name, KJSNumber(double(value)));
00230 }
00231 
00232 void KJSObject::setProperty(KJSContext* ctx, const QString& name,
00233                             const QString &value)
00234 {
00235     setProperty(ctx, name, KJSString(value));
00236 }
00237 
00238 void KJSObject::setProperty(KJSContext* ctx, const QString& name,
00239                             const char* value)
00240 {
00241     setProperty(ctx, name, KJSString(value));
00242 }
00243 
00244 KJSGlobalObject::KJSGlobalObject(): KJSObject(JSVALUE_HANDLE(new JSGlobalObject()))
00245 {
00246 }

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