OOJSCall.h File Reference

import <Foundation/Foundation.h>
#include <jsapi.h>

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Functions
BOOL	OOJSCallObjCObjectMethod (JSContext *context, id object, NSString *oo_jsClassName, uintN argc, jsval *argv, jsval *outResult)

Function Documentation

OOJSCallObjCObjectMethod()

BOOL OOJSCallObjCObjectMethod	(	JSContext *	context,
		id	object,
		NSString *	oo_jsClassName,
		uintN	argc,
		jsval *	argv,
		jsval *	outResult )

Definition at line 71 of file OOJSCall.m.

{
    OOJS_PROFILE_ENTER
    
    NSString                *selectorString = nil;
    SEL                     selector = NULL;
    NSString                *paramString = nil;
    MethodType              type;
    BOOL                    haveParameter = NO,
                            error = NO;
    id                      result = nil;
    
    if (argc == 0)
    {
        OOJSReportError(context, @"%@.callObjC(): no selector specified.", oo_jsClassName);
        return NO;
    }
    
    if ([object isKindOfClass:[ShipEntity class]])
    {
        [PLAYER setScriptTarget:object];
    }
    
    selectorString = OOStringFromJSValue(context, argv[0]);
    
    // Join all parameters together with spaces.
    if (1 < argc && [selectorString hasSuffix:@":"])
    {
        haveParameter = YES;
        paramString = [NSString concatenationOfStringsFromJavaScriptValues:argv + 1 count:argc - 1 separator:@" " inContext:context];
    }
    
    selector = NSSelectorFromString(selectorString);
    
    if ([object respondsToSelector:selector])
    {
        // Validate signature.
        type = GetMethodType(object, selector);
        
        if (MethodExpectsParameter(type) && !haveParameter)
        {
            OOJSReportError(context, @"%@.callObjC(): method %@ requires a parameter.", oo_jsClassName, selectorString);
            error = YES;
        }
        else
        {
            IMP method = [object methodForSelector:selector];
            switch (type)
            {
                case kMethodTypeVoidObject:
                    [object performSelector:selector withObject:paramString];
                    break;
                    
                case kMethodTypeObjectObject:
                    result = [object performSelector:selector withObject:paramString];
                    break;
                    
                case kMethodTypeObjectVoid:
                    result = [object performSelector:selector];
                    if ([selectorString hasSuffix:@"_bool"])  result = [NSNumber numberWithBool:OOBooleanFromObject(result, NO)];
                    break;
                    
                case kMethodTypeVoidVoid:
                    [object performSelector:selector];
                    break;
                    
                case kMethodTypeCharVoid:
                case kMethodTypeUnsignedCharVoid:
                case kMethodTypeShortVoid:
                case kMethodTypeUnsignedShortVoid:
                case kMethodTypeIntVoid:
                case kMethodTypeUnsignedIntVoid:
                case kMethodTypeLongVoid:
                    result = [NSNumber numberWithLongLong:OOCallIntegerMethod(object, selector, method, (OOShaderUniformType)type)];
                    break;
                    
                case kMethodTypeUnsignedLongVoid:
                    result = [NSNumber numberWithUnsignedLongLong:OOCallIntegerMethod(object, selector, method, (OOShaderUniformType)type)];
                    break;
                    
                case kMethodTypeFloatVoid:
                case kMethodTypeDoubleVoid:
                    result = [NSNumber numberWithDouble:OOCallFloatMethod(object, selector, method, (OOShaderUniformType)type)];
                    break;
                    
                case kMethodTypeVectorVoid:
                {
                    Vector v = ((VectorReturnMsgSend)method)(object, selector);
                    *outResult = OBJECT_TO_JSVAL(JSVectorWithVector(context, v));
                    break;
                }
                    
                case kMethodTypeQuaternionVoid:
                {
                    Quaternion q = ((QuaternionReturnMsgSend)method)(object, selector);
                    *outResult = OBJECT_TO_JSVAL(JSQuaternionWithQuaternion(context, q));
                    break;
                }
                    
                case kMethodTypeMatrixVoid:
                case kMethodTypePointVoid:
                case kMethodTypeInvalid:
                    OOJSReportError(context, @"%@.callObjC(): method %@ cannot be called from JavaScript.", oo_jsClassName, selectorString);
                    error = YES;
                    break;
            }
            if (result != nil)
            {
                *outResult = [result oo_jsValueInContext:context];
            }
        }
    }
    else
    {
        OOJSReportError(context, @"%@.callObjC(): %@ does not respond to method %@.", oo_jsClassName, [object shortDescription], selectorString);
        error = YES;
    }
    
    return !error;
    
    OOJS_PROFILE_EXIT
}

References GetMethodType(), JSQuaternionWithQuaternion(), JSVectorWithVector(), kMethodTypeCharVoid, kMethodTypeDoubleVoid, kMethodTypeFloatVoid, kMethodTypeIntVoid, kMethodTypeInvalid, kMethodTypeLongVoid, kMethodTypeMatrixVoid, kMethodTypeObjectObject, kMethodTypeObjectVoid, kMethodTypePointVoid, kMethodTypeQuaternionVoid, kMethodTypeShortVoid, kMethodTypeUnsignedCharVoid, kMethodTypeUnsignedIntVoid, kMethodTypeUnsignedLongVoid, kMethodTypeUnsignedShortVoid, kMethodTypeVectorVoid, kMethodTypeVoidObject, kMethodTypeVoidVoid, MethodExpectsParameter(), nil, OOBooleanFromObject(), OOJS_PROFILE_ENTER, OOJS_PROFILE_EXIT, OOJSReportError(), and OOStringFromJSValue().

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