kjs/api/kjsobject.cpp

   1 /*
   2  *  This file is part of the KDE libraries
   3  *  Copyright (C) 2008 Harri Porten (porten@kde.org)
   4  *
   5  *  This library is free software; you can redistribute it and/or
   6  *  modify it under the terms of the GNU Library General Public
   7  *  License as published by the Free Software Foundation; either
   8  *  version 2 of the License, or (at your option) any later version.
   9  *
  10  *  This library is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  *  Library General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU Library General Public License
  16  *  along with this library; see the file COPYING.LIB.  If not, write to
  17  *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  18  *  Boston, MA 02110-1301, USA.
  19  *
  20  */
  21
  22 #include "kjsobject.h"
  23 #include "kjsprivate.h"
  24 #include "kjscontext.h"
  25 #include "kjs/value.h"
  26 #include "kjs/object.h"
  27 #include "kjs/protect.h"
  28 #include "kjs/ExecState.h"
  29 #include "kjs/JSVariableObject.h"
  30
  31 #include <kdebug.h>
  32 #include <QDateTime>
  33
  34 using namespace KJS;
  35
  36 KJSObject::KJSObject()
  37     : hnd(JSVALUE_HANDLE(new JSObject()))
  38 {
  39     gcProtect(JSVALUE(this));
  40 }
  41
  42 KJSObject::KJSObject(const KJSObject& o)
  43     : hnd(o.hnd)
  44 {
  45     gcProtectNullTolerant(JSVALUE(this));
  46 }
  47
  48 KJSObject& KJSObject::operator=(const KJSObject& o)
  49 {
  50     gcUnprotectNullTolerant(JSVALUE(this));
  51
  52     hnd = o.hnd;
  53     gcProtectNullTolerant(JSVALUE(this));
  54
  55     return *this;
  56 }
  57
  58 KJSObject::~KJSObject()
  59 {
  60     gcUnprotectNullTolerant(JSVALUE(this));
  61 }
  62
  63 KJSNull::KJSNull()
  64     : KJSObject(JSVALUE_HANDLE(jsNull()))
  65 {
  66 }
  67
  68 KJSUndefined::KJSUndefined()
  69     : KJSObject(JSVALUE_HANDLE(jsUndefined()))
  70 {
  71 }
  72
  73 KJSBoolean::KJSBoolean(bool b)
  74     : KJSObject(JSVALUE_HANDLE(jsBoolean(b)))
  75 {
  76 }
  77
  78 KJSNumber::KJSNumber(double d)
  79     : KJSObject(JSVALUE_HANDLE(jsNumber(d)))
  80 {
  81     gcProtect(JSVALUE(this));
  82 }
  83
  84 KJSString::KJSString(const QString& s)
  85     : KJSObject(JSVALUE_HANDLE(jsString(toUString(s))))
  86 {
  87     gcProtect(JSVALUE(this));
  88 }
  89
  90 KJSString::KJSString(const char* s)
  91     : KJSObject(JSVALUE_HANDLE(jsString(s)))
  92 {
  93     gcProtect(JSVALUE(this));
  94 }
  95
  96 static JSValue* constructArrayHelper(ExecState* exec, int len)
  97 {
  98     JSObject* builtinArray = exec->lexicalInterpreter()->builtinArray();
  99     JSObject* newArray = builtinArray->construct(exec, List());
 100     newArray->put(exec, exec->propertyNames().length, jsNumber(len),
 101                   DontDelete|ReadOnly|DontEnum);
 102     return newArray;
 103 }
 104
 105 KJSArray::KJSArray(KJSContext* ctx, int len)
 106     : KJSObject(JSVALUE_HANDLE(constructArrayHelper(EXECSTATE(ctx), len)))
 107
 108 {
 109     gcProtect(JSVALUE(this));
 110 }
 111
 112 static JSValue* constructDateHelper(KJSContext* ctx, const QDateTime& dt)
 113 {
 114     kWarning() << "converDateTimeHelper() not implemented, yet";
 115
 116     // ### make call into data_object.cpp
 117
 118     return jsNumber(42.0);
 119 }
 120
 121
 122 KJSDate::KJSDate(KJSContext* ctx, const QDateTime& dt)
 123     : KJSObject(JSVALUE_HANDLE(constructDateHelper(ctx, dt)))
 124 {
 125     gcProtect(JSVALUE(this));
 126 }
 127
 128 bool KJSObject::isUndefined() const
 129 {
 130     return JSVALUE(this)->isUndefined();
 131 }
 132
 133 bool KJSObject::isNull() const
 134 {
 135     return JSVALUE(this)->isNull();
 136 }
 137
 138 bool KJSObject::isBoolean() const
 139 {
 140     return JSVALUE(this)->isBoolean();
 141 }
 142
 143 bool KJSObject::isNumber() const
 144 {
 145     return JSVALUE(this)->isNumber();
 146 }
 147
 148 bool KJSObject::isString() const
 149 {
 150     return JSVALUE(this)->isString();
 151 }
 152
 153 bool KJSObject::isObject() const
 154 {
 155     return JSVALUE(this)->isObject();
 156 }
 157
 158 bool KJSObject::toBoolean(KJSContext* ctx)
 159 {
 160     ExecState* exec = EXECSTATE(ctx);
 161     assert(exec);
 162     return JSVALUE(this)->toBoolean(exec);
 163 }
 164
 165 double KJSObject::toNumber(KJSContext* ctx)
 166 {
 167     ExecState* exec = EXECSTATE(ctx);
 168     assert(exec);
 169     return JSVALUE(this)->toNumber(exec);
 170 }
 171
 172 int KJSObject::toInt32(KJSContext* ctx)
 173 {
 174     ExecState* exec = EXECSTATE(ctx);
 175     assert(exec);
 176     return JSVALUE(this)->toInt32(exec);
 177 }
 178
 179 QString KJSObject::toString(KJSContext* ctx)
 180 {
 181     ExecState* exec = EXECSTATE(ctx);
 182     assert(exec);
 183     return toQString(JSVALUE(this)->toString(exec));
 184 }
 185
 186 KJSObject KJSObject::property(KJSContext* ctx, const QString& name)
 187 {
 188     JSValue* v = JSVALUE(this);
 189     assert(v);
 190
 191 #if 0
 192     // would normally throw an exception
 193     if (v == jsUndefined || v == jsNull())
 194         return KJSUndefined();
 195 #endif
 196
 197     ExecState* exec = EXECSTATE(ctx);
 198     JSObject* o = v->toObject(exec);
 199     JSValue* res = o->get(exec, toIdentifier(name));
 200
 201     return KJSObject(JSVALUE_HANDLE(res));
 202 }
 203
 204 void KJSObject::setProperty(KJSContext* ctx, const QString& name,
 205                             const KJSObject& value)
 206 {
 207     JSValue* v = JSVALUE(this);
 208     assert(v);
 209
 210     ExecState* exec = EXECSTATE(ctx);
 211     JSObject* o = v->toObject(exec);
 212     o->put(exec, toIdentifier(name), JSVALUE(&value));
 213 }
 214
 215 void KJSObject::setProperty(KJSContext* ctx, const QString& name, bool value)
 216 {
 217     setProperty(ctx, name, KJSBoolean(value));
 218 }
 219
 220 void KJSObject::setProperty(KJSContext* ctx, const QString& name,
 221                             double value)
 222 {
 223     setProperty(ctx, name, KJSNumber(value));
 224 }
 225
 226 void KJSObject::setProperty(KJSContext* ctx, const QString& name,
 227                             int value)
 228 {
 229     setProperty(ctx, name, KJSNumber(double(value)));
 230 }
 231
 232 void KJSObject::setProperty(KJSContext* ctx, const QString& name,
 233                             const QString &value)
 234 {
 235     setProperty(ctx, name, KJSString(value));
 236 }
 237
 238 void KJSObject::setProperty(KJSContext* ctx, const QString& name,
 239                             const char* value)
 240 {
 241     setProperty(ctx, name, KJSString(value));
 242 }
 243
 244 KJSGlobalObject::KJSGlobalObject(): KJSObject(JSVALUE_HANDLE(new JSGlobalObject()))
 245 {
 246 }