summaryrefslogtreecommitdiffstats
path: root/kjsembed/jsobjectproxy.cpp
blob: 8b7d3cb71192577c233edc8bef5bd5949108a126 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
/*
*  Copyright (C) 2001-2003, Richard J. Moore <rich@kde.org>
*
*  This library is free software; you can redistribute it and/or
*  modify it under the terms of the GNU Library General Public
*  License as published by the Free Software Foundation; either
*  version 2 of the License, or (at your option) any later version.
*
*  This library is distributed in the hope that it will be useful,
*  but WITHOUT ANY WARRANTY; without even the implied warranty of
*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
*  Library General Public License for more details.
*
*  You should have received a copy of the GNU Library General Public License
*  along with this library; see the file COPYING.LIB.  If not, write to
*  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
*  Boston, MA 02110-1301, USA.
*/

#include <tqobject.h>
#include <tqobjectlist.h>
#include <tqmetaobject.h>
#include <tqregexp.h>
#include <tqsignal.h>
#include <tqstrlist.h>
#include <tqvariant.h>

#include <private/qucomextra_p.h>

#include <kjs/interpreter.h>
#include <kjs/types.h>
#include <kjs/ustring.h>

#include "kjsembedpart.h"
#include "jssecuritypolicy.h"
#include "jsfactory.h"
#include "global.h"

#include "jsobjectproxy.h"
#include "jsobjectproxy_imp.h"
#include "jsobjecteventproxy.h"
#include "jseventmapper.h"
#include "slotutils.h"

#include "bindings/bindingobject.h"

//#include "kjsembedpart_imp.h"
#include "jsfactory_imp.h"

using namespace KJS;

namespace KJSEmbed {

    typedef Bindings::JSObjectProxyImp JSObjectProxyImp;

    JSObjectProxy::JSObjectProxy( KJSEmbedPart *part, TQObject *target, TQObject *r, const JSSecurityPolicy *sp )
            : JSProxy( JSProxy::ObjectProxy ),
    jspart( part ), js( part->interpreter() ), obj( target ), root( r ) {
        policy = sp ? sp : JSSecurityPolicy::defaultPolicy();
    }

    JSObjectProxy::JSObjectProxy( KJSEmbedPart *part, TQObject *target, TQObject *r )
            : JSProxy( JSProxy::ObjectProxy ),
    jspart( part ), js( part->interpreter() ), obj( target ), root( r ) {
        policy = JSSecurityPolicy::defaultPolicy();
    }

    JSObjectProxy::JSObjectProxy( KJSEmbedPart *part, TQObject *target )
            : JSProxy( JSProxy::ObjectProxy ),
    jspart( part ), js( part->interpreter() ), obj( target ), root( target ) {
        policy = JSSecurityPolicy::defaultPolicy();
    }
    JSObjectProxy::~JSObjectProxy() {
        if ( owner() == JavaScript && obj->parent() == 0 )
            delete obj;
    }

    void JSObjectProxy::setSecurityPolicy( const JSSecurityPolicy *pol ) {
        policy = pol ? pol : new JSSecurityPolicy();
    }

    bool JSObjectProxy::isAllowed( KJS::Interpreter *js ) const {
        return policy->isInterpreterAllowed( this, js );
    }

    KJS::UString JSObjectProxy::toString( KJS::ExecState *exec ) const {
        if ( !exec ) {
            kdWarning() << "JS toString with null state, ignoring" << endl;
            return KJS::UString();
        }
        if ( !isAllowed( exec->interpreter() ) ) {
            kdWarning() << "JS toString request from unknown interpreter, ignoring" << endl;
            return KJS::UString();
        }

        TQString s( "%1 (%2)" );
        s = s.arg( obj ? obj->name() : "Dead Object" );
        s = s.arg( obj ? obj->className() : "" );
        return KJS::UString( s );
    }

    KJS::Value JSObjectProxy::get( KJS::ExecState *exec, const KJS::Identifier &p ) const {
            if ( !isAllowed( exec->interpreter() ) ) {
                kdWarning() << "JS get request from unknown interpreter, ignoring" << endl;
                return KJS::Null();
            }

            if ( !policy->isPropertyAllowed( this, obj, p.ascii() ) )
                return ObjectImp::get( exec, p );

            if ( !obj ) {
                kdDebug( 80001 ) << "JS getting '" << p.ustring().qstring() << "' but qobj has died" << endl;
                return ObjectImp::get( exec, p );
            }
            kdDebug( 80001 ) << "JS getting '" << p.ascii() << endl;

            // Properties
            TQString prop = p.ustring().qstring();
            TQMetaObject *meta = obj->metaObject();

            if ( meta->findProperty( p.ascii(), true ) != -1 ) {
                TQVariant val = obj->property( prop.ascii() );
                kdDebug( 80001 ) << "JS getting '" << p.ascii() << "' ( " << val.typeName() << ")" << endl;

                return convertToValue( exec, val );
            }

            return ObjectImp::get
                       ( exec, p );
        }

    void JSObjectProxy::put( KJS::ExecState *exec,
                             const KJS::Identifier &p, const KJS::Value &v,
                             int attr ) {
        if ( !isAllowed( exec->interpreter() ) ) {
            kdWarning() << "JS put request from unknown interpreter, ignoring" << endl;
            return ;
        }

        if ( !policy->hasCapability( JSSecurityPolicy::CapabilitySetProperties ) ) {
            ObjectImp::put( exec, p, v, attr );
            return ;
        }

        if ( !obj ) {
            kdDebug( 80001 ) << "JS setting '" << p.ascii() << "' but qobj has died" << endl;
            ObjectImp::put( exec, p, v, attr );
            return ;
        }

        // Properties
        TQMetaObject *meta = obj->metaObject();
        int propIndex = meta->findProperty( p.ascii(), true );
        if ( propIndex != -1 ) {
            TQVariant val = convertToVariant( exec, v );
            if ( meta->property(propIndex, true)->isEnumType() ) {
                obj->setProperty( p.ascii(), val.toUInt() );
            } else if ( val.isValid() ) {
                obj->setProperty( p.ascii(), val );
            } else {
                kdWarning(80001) << "Error setting value." << endl;
            }
        } else {
            ObjectImp::put( exec, p, v, attr );
        }

        if ( jspart->factory() ->eventMapper() ->isEventHandler( p ) ) {
            if ( evproxy.isNull() )
                evproxy = new KJSEmbed::JSObjectEventProxy( this );
            evproxy->addFilter( jspart->factory() ->eventMapper() ->findEventType( p ) );
            kdDebug( 80001 ) << "Adding event handler " << p.ascii() << endl;
        }
    }

    //
    // Implementation of JS Method Bindings
    //

    void JSObjectProxy::addBindings( KJS::ExecState *exec, KJS::Object &object ) {
        kdDebug( 80001 ) << "JSObjectProxy::addBindings() " << ( obj->name() ? obj->name() : "dunno" )
        << ", class " << obj->className() << endl;

        if ( policy->hasCapability( JSSecurityPolicy::CapabilityGetProperties | JSSecurityPolicy::CapabilitySetProperties ) ) {
            object.put( exec, "properties", KJS::Object( new JSObjectProxyImp( exec, JSObjectProxyImp::MethodProps, this ) ) );
        }

        if ( policy->hasCapability( JSSecurityPolicy::CapabilityTree ) ) {
            JSObjectProxyImp::addBindingsTree( exec, object, this );
            JSObjectProxyImp::addBindingsDOM( exec, object, this );
        }

        if ( policy->hasCapability( JSSecurityPolicy::CapabilitySlots ) ) {
            addBindingsSlots( exec, object );
            JSObjectProxyImp::addBindingsConnect( exec, object, this );
        }

        addBindingsClass( exec, object );
    }

    void JSObjectProxy::addBindingsClass( KJS::ExecState *exec, KJS::Object & /*object*/ ) {
        KJS::Identifier clazzid;
        TQObject *o = obj;
        Bindings::BindingObject *bo = dynamic_cast<Bindings::BindingObject *>( o );
        if ( bo ) {
            clazzid = KJS::Identifier( bo->jsClassName() ? bo->jsClassName() : obj->className() );
        } else {
            clazzid = KJS::Identifier( obj->className() );
        }

        KJS::Object global = js->globalObject();
        if ( global.hasProperty( exec, clazzid ) ) {
            kdDebug( 80001 ) << "addBindingsClass() " << clazzid.qstring() << " already known" << endl;

            KJS::Object clazz = global.get( exec, clazzid ).toObject( exec );
            Bindings::JSFactoryImp *imp = dynamic_cast<Bindings::JSFactoryImp *>( clazz.imp() );
            if ( !imp ) {
                kdWarning() << "addBindingsClass() Class was not created by normal means" << endl;
                return ;
            }

            kdDebug( 80001 ) << "addBindingsClass() Adding enums" << endl;
            imp->setDefaultValue( js->builtinObject().construct( exec, KJS::List() ) );
            addBindingsEnum( exec, clazz );
        } else {
            kdWarning() << "addBindingsClass() " << clazzid.qstring() << " not known" << endl;
        }
    }

    void JSObjectProxy::addBindingsEnum( KJS::ExecState *exec, KJS::Object &object ) {
        TQMetaObject * mo = obj->metaObject();
        TQStrList enumList = mo->enumeratorNames( true );

        for ( TQStrListIterator iter( enumList ); iter.current(); ++iter ) {

            const QMetaEnum *me = mo->enumerator( iter.current(), true );
            for ( uint i = 0 ; i < me->count ; i++ ) {
                TQCString key( ( me->items ) [ i ].key );
                int val = ( me->items ) [ i ].value;
                object.put( exec, key.data(), KJS::Number( val ), KJS::ReadOnly );
            }
        }
    }

    void JSObjectProxy::addBindingsSlots( KJS::ExecState *exec, KJS::Object &object ) {
        // Publish slots with supported signatures as methods.
        TQMetaObject * mo = obj->metaObject();
        TQStrList slotList( mo->slotNames( true ) );
        for ( TQStrListIterator iter( slotList ); iter.current(); ++iter ) {
            addSlotBinding( iter.current(), exec, object );
        }
    }

    void JSObjectProxy::addSlotBinding( const TQCString &name, KJS::ExecState *exec, KJS::Object &object ) {
        // Lookup and bind slot
        TQMetaObject * mo = obj->metaObject();
        int slotid = mo->findSlot( name.data(), true );
        if ( slotid == -1 )
            return ;

        const QMetaData *md = mo->slot( slotid, true );
        if ( md->access != QMetaData::Public )
            return ;

        // Find signature
        int id = Bindings::JSSlotUtils::findSignature( name );
        //    kdDebug( 80001 )<<"JSObjectProxy::addSlotBinding()::slot:"<<name<<" id:"<<id<<endl;
        if ( id < 0 )
            return ;

        TQCString jsname = name;
        jsname.detach();
        jsname.replace( TQRegExp( "\\([^\\)]*\\)" ), "" );

        // Find the return type, we only care if it is a pointer type
        const QUMethod *m = md->method;
        const char *retclass = 0;
        TQCString ptr( "ptr" );

        if ( m->count && ( m->parameters->inOut == QUParameter::Out )
                && ( ptr == m->parameters->type->desc() ) ) {
            retclass = ( const char * ) m->parameters->typeExtra;
            //  kdDebug(80001) << "Return type is a pointer, type " << retclass << endl;
        }

        // Create the Imp
        JSObjectProxyImp *imp = new JSObjectProxyImp( exec, JSObjectProxyImp::MethodSlot,
                                retclass ? retclass : "", id, name, this );

        if ( !object.hasProperty( exec, KJS::Identifier( jsname ) ) ) {
            // The identifier is unused
            object.put( exec, KJS::Identifier( jsname.data() ), KJS::Object( imp ) );
        } else {
            // The identifier has already been used
            TQString s( name );
            TQCString cs = TQString( "%1%2" ).arg( jsname ).arg( s.contains( ',' ) + 1 ).ascii();
            //kdDebug(80001) << "Method " << jsname << " exists, using " << cs << " for " << s << endl;
            object.put( exec, KJS::Identifier( cs.data() ), KJS::Object( imp ) );
        }
    }

} // namespace KJSEmbed

// Local Variables:
// c-basic-offset: 4
// End: