bindings/objc/objc_runtime.h

   1 /*
   2  * Copyright (C) 2004 Apple Computer, Inc.  All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  * 1. Redistributions of source code must retain the above copyright
   8  *    notice, this list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright
  10  *    notice, this list of conditions and the following disclaimer in the
  11  *    documentation and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
  14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
  17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24  */
  25
  26 #ifndef KJS_BINDINGS_OBJC_RUNTIME_H
  27 #define KJS_BINDINGS_OBJC_RUNTIME_H
  28
  29 #include <CoreFoundation/CoreFoundation.h>
  30 #include <JavaScriptCore/objc_header.h>
  31 #include <JavaScriptCore/object.h>
  32 #include <JavaScriptCore/runtime.h>
  33
  34 #include <wtf/RetainPtr.h>
  35
  36 namespace KJS {
  37 namespace Bindings {
  38
  39 extern ClassStructPtr webScriptObjectClass();
  40 extern ClassStructPtr webUndefinedClass();
  41
  42 class ObjcInstance;
  43
  44 class ObjcField : public Field
  45 {
  46 public:
  47     ObjcField(IvarStructPtr ivar);
  48     ObjcField(CFStringRef name);
  49
  50     virtual JSValue *valueFromInstance(ExecState *exec, const Instance *instance) const;
  51     virtual void setValueToInstance(ExecState *exec, const Instance *instance, JSValue *aValue) const;
  52
  53     virtual const char *name() const;
  54
  55 private:
  56     IvarStructPtr _ivar;
  57     RetainPtr<CFStringRef> _name;
  58 };
  59
  60 class ObjcMethod : public Method
  61 {
  62 public:
  63     ObjcMethod() : _objcClass(0), _selector(0), _javaScriptName(0) {}
  64     ObjcMethod(ClassStructPtr aClass, const char *_selector);
  65
  66     virtual const char *name() const;
  67
  68     virtual int numParameters() const;
  69
  70     NSMethodSignature *getMethodSignature() const;
  71
  72     bool isFallbackMethod() const { return strcmp(_selector, "invokeUndefinedMethodFromWebScript:withArguments:") == 0; }
  73     void setJavaScriptName(CFStringRef n) { _javaScriptName = n; }
  74     CFStringRef javaScriptName() const { return _javaScriptName.get(); }
  75
  76 private:
  77     ClassStructPtr _objcClass;
  78     const char *_selector;
  79     RetainPtr<CFStringRef> _javaScriptName;
  80 };
  81
  82 class ObjcArray : public Array
  83 {
  84 public:
  85     ObjcArray(ObjectStructPtr, PassRefPtr<RootObject>);
  86
  87     virtual void setValueAt(ExecState *exec, unsigned int index, JSValue *aValue) const;
  88     virtual JSValue *valueAt(ExecState *exec, unsigned int index) const;
  89     virtual unsigned int getLength() const;
  90
  91     ObjectStructPtr getObjcArray() const { return _array.get(); }
  92
  93     static JSValue *convertObjcArrayToArray(ExecState *exec, ObjectStructPtr anObject);
  94
  95 private:
  96     RetainPtr<ObjectStructPtr> _array;
  97 };
  98
  99 class ObjcFallbackObjectImp : public JSObject {
 100 public:
 101     ObjcFallbackObjectImp(ObjcInstance *i, const Identifier propertyName);
 102
 103     const ClassInfo *classInfo() const { return &info; }
 104
 105     virtual bool getOwnPropertySlot(ExecState *, const Identifier&, PropertySlot&);
 106     virtual bool canPut(ExecState *exec, const Identifier &propertyName) const;
 107     virtual void put(ExecState *exec, const Identifier &propertyName, JSValue *value, int attr = None);
 108     virtual bool implementsCall() const;
 109     virtual JSValue *callAsFunction(ExecState *exec, JSObject *thisObj, const List &args);
 110     virtual bool deleteProperty(ExecState *exec, const Identifier &propertyName);
 111     virtual JSValue *defaultValue(ExecState *exec, JSType hint) const;
 112
 113     virtual JSType type() const;
 114     virtual bool toBoolean(ExecState *exec) const;
 115
 116 private:
 117     ObjcFallbackObjectImp(); // prevent default construction
 118
 119     static const ClassInfo info;
 120
 121     RefPtr<ObjcInstance> _instance;
 122     Identifier _item;
 123 };
 124
 125 } // namespace Bindings
 126 } // namespace KJS
 127
 128 #endif