0ffb248771
Fixes in that time: * Clean, integrated model for JS ship scripts and world scripts. * Player ships support JS ship scripts (but not ones synthesized from legacy actions). * Subentity shader uniform bindings bind to owning ship as intended. * Fixed like_ship recursion limiter in -[Universe getDictionaryForShip:]. * Fixed a bug in material configuration parsing. * Fixed a material bug where a shader material with textures, followed by a shader material with no textures, followed by a basic material with no textures would leave a texture bound. * Cleaned up NSArray -> JS array conversion, without fixing aforementioned bug. * Made JS Ship property "target" read/write, and made property setting work. * Added JS Quaternion.random() static method. git-svn-id: http://svn.berlios.de/svnroot/repos/oolite-linux/trunk@1136 127b21dd-08f5-0310-b4b7-95ae10353056
1008 lines
26 KiB
Objective-C
1008 lines
26 KiB
Objective-C
/*
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OOJavaScriptEngine.h
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JavaScript support for Oolite
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Copyright (C) 2007 David Taylor and Jens Ayton.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA.
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*/
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#import "OOJavaScriptEngine.h"
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#import "OOJSScript.h"
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#import "OOJSVector.h"
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#import "OOJSQuaternion.h"
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#import "OOJSEntity.h"
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#import "OOJSShip.h"
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#import "OOJSStation.h"
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#import "OOJSPlayer.h"
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#import "OOJSSystem.h"
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#import "jsarray.h"
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#import "OOCollectionExtractors.h"
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#import "Universe.h"
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#import "PlanetEntity.h"
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#import "NSStringOOExtensions.h"
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#import "OOWeakReference.h"
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#include <stdio.h>
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#include <string.h>
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extern NSString * const kOOLogDebugMessage;
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static OOJavaScriptEngine *sSharedEngine = nil;
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static JSObject *xglob, *missionObj;
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// For _bool scripting methods which always return @"YES" or @"NO" and nothing else.
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OOINLINE jsval BooleanStringToJSVal(NSString *string) INLINE_PURE_FUNC;
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OOINLINE jsval BooleanStringToJSVal(NSString *string)
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{
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return BOOLEAN_TO_JSVAL([string isEqualToString:@"YES"]);
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}
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static void ReportJSError(JSContext *context, const char *message, JSErrorReport *report);
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//===========================================================================
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// MissionVars class
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//===========================================================================
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static JSBool MissionVarsGetProperty(JSContext *context, JSObject *obj, jsval name, jsval *vp);
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static JSBool MissionVarsSetProperty(JSContext *context, JSObject *obj, jsval name, jsval *vp);
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static JSClass MissionVars_class =
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{
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"MissionVariables",
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0,
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JS_PropertyStub,
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JS_PropertyStub,
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MissionVarsGetProperty,
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MissionVarsSetProperty,
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JS_EnumerateStub,
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JS_ResolveStub,
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JS_ConvertStub,
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JS_FinalizeStub
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};
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static JSBool MissionVarsGetProperty(JSContext *context, JSObject *obj, jsval name, jsval *vp)
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{
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NSDictionary *mission_variables = [OPlayerForScripting() mission_variables];
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if (JSVAL_IS_STRING(name))
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{
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NSString *key = [@"mission_" stringByAppendingString:[NSString stringWithJavaScriptValue:name inContext:context]];
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NSString *value = [mission_variables objectForKey:key];
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if (value == nil)
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{
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*vp = JSVAL_VOID;
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}
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else
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{
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/* The point of this code is to try and tell the JS interpreter to treat numeric strings
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as numbers where possible so that standard arithmetic works as you'd expect rather than
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1+1 == "11". So a JSVAL_DOUBLE is returned if possible, otherwise a JSVAL_STRING is returned.
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*/
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BOOL isNumber = NO;
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double dVal;
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dVal = [value doubleValue];
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if (dVal != 0) isNumber = YES;
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else
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{
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NSCharacterSet *notZeroSet = [[NSCharacterSet characterSetWithCharactersInString:@"-0. "] invertedSet];
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if ([value rangeOfCharacterFromSet:notZeroSet].location == NSNotFound) isNumber = YES;
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}
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if (isNumber)
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{
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jsdouble ds = [value doubleValue];
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JSBool ok = JS_NewDoubleValue(context, ds, vp);
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if (!ok) *vp = JSVAL_VOID;
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}
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else *vp = [value javaScriptValueInContext:context];
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}
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}
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return JS_TRUE;
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}
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static JSBool MissionVarsSetProperty(JSContext *context, JSObject *obj, jsval name, jsval *vp)
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{
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NSDictionary *mission_variables = [OPlayerForScripting() mission_variables];
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if (JSVAL_IS_STRING(name))
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{
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NSString *key = [@"mission_" stringByAppendingString:[NSString stringWithJavaScriptValue:name inContext:context]];
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NSString *value = [NSString stringWithJavaScriptValue:*vp inContext:context];
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[mission_variables setValue:value forKey:key];
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}
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return JS_TRUE;
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}
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//===========================================================================
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// Global object class
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//===========================================================================
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static JSBool GlobalGetProperty(JSContext *context, JSObject *obj, jsval name, jsval *vp);
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static JSClass global_class =
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{
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"Oolite",
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0,
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JS_PropertyStub,
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JS_PropertyStub,
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JS_PropertyStub,
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JS_PropertyStub,
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JS_EnumerateStub,
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JS_ResolveStub,
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JS_ConvertStub,
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JS_FinalizeStub
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};
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enum global_propertyIDs
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{
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GLOBAL_GALAXY_NUMBER,
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GLOBAL_PLANET_NUMBER,
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GLOBAL_MISSION_VARS,
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GLOBAL_GUI_SCREEN
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};
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static JSPropertySpec Global_props[] =
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{
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// JS name ID flags
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{ "galaxyNumber", GLOBAL_GALAXY_NUMBER, JSPROP_PERMANENT | JSPROP_ENUMERATE | JSPROP_READONLY, GlobalGetProperty },
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{ "planetNumber", GLOBAL_PLANET_NUMBER, JSPROP_PERMANENT | JSPROP_ENUMERATE | JSPROP_READONLY, GlobalGetProperty },
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{ "missionVariables", GLOBAL_MISSION_VARS, JSPROP_PERMANENT | JSPROP_ENUMERATE, GlobalGetProperty },
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{ "guiScreen", GLOBAL_GUI_SCREEN, JSPROP_PERMANENT | JSPROP_ENUMERATE | JSPROP_READONLY, GlobalGetProperty },
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{ 0 }
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};
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static JSBool GlobalLog(JSContext *context, JSObject *obj, uintN argc, jsval *argv, jsval *rval);
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static JSBool GlobalLogWithClass(JSContext *context, JSObject *obj, uintN argc, jsval *argv, jsval *rval);
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static JSFunctionSpec Global_funcs[] =
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{
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{ "Log", GlobalLog, 1, 0 },
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{ "LogWithClass", GlobalLogWithClass, 2, 0 },
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{ 0 }
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};
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static JSBool GlobalLog(JSContext *context, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
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{
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NSString *logString = [NSString concatenationOfStringsFromJavaScriptValues:argv count:argc separator:@", " inContext:context];
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OOLog(kOOLogDebugMessage, logString);
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return JS_TRUE;
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}
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static JSBool GlobalLogWithClass(JSContext *context, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
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{
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NSString *logString = [NSString concatenationOfStringsFromJavaScriptValues:argv + 1 count:argc - 1 separator:@", " inContext:context];
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OOLog([NSString stringWithJavaScriptValue:argv[0] inContext:context], logString);
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return JS_TRUE;
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}
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static JSBool GlobalGetProperty(JSContext *context, JSObject *obj, jsval name, jsval *vp)
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{
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if (!JSVAL_IS_INT(name)) return JS_TRUE;
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PlayerEntity *player = OPlayerForScripting();
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id result = nil;
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switch (JSVAL_TO_INT(name))
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{
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case GLOBAL_GALAXY_NUMBER:
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result = [player galaxy_number];
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break;
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case GLOBAL_PLANET_NUMBER:
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result = [player planet_number];
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break;
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case GLOBAL_GUI_SCREEN:
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result = [player gui_screen_string];
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break;
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case GLOBAL_MISSION_VARS:
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{
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JSObject *mv = JS_DefineObject(context, xglob, "missionVariables", &MissionVars_class, 0x00, JSPROP_ENUMERATE | JSPROP_READONLY | JSPROP_PERMANENT);
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*vp = OBJECT_TO_JSVAL(mv);
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break;
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}
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default:
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OOReportJavaScriptBadPropertySelector(context, @"Global", JSVAL_TO_INT(name));
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return NO;
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}
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if (result != nil) *vp = [result javaScriptValueInContext:context];
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return JS_TRUE;
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}
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//===========================================================================
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// Mission class
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//===========================================================================
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static JSBool MissionGetProperty(JSContext *context, JSObject *obj, jsval name, jsval *vp);
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static JSBool MissionSetProperty(JSContext *context, JSObject *obj, jsval name, jsval *vp);
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static JSClass Mission_class =
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{
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"Mission",
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0,
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JS_PropertyStub,
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JS_PropertyStub,
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MissionGetProperty,
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MissionSetProperty,
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JS_EnumerateStub,
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JS_ResolveStub,
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JS_ConvertStub,
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JS_FinalizeStub
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};
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enum Mission_propertyIDs
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{
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MISSION_TEXT, MISSION_MUSIC, MISSION_IMAGE, MISSION_CHOICES, MISSION_CHOICE, MISSION_INSTRUCTIONS
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};
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static JSPropertySpec Mission_props[] =
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{
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{ "missionScreenTextKey", MISSION_TEXT, JSPROP_ENUMERATE },
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{ "musicFileName", MISSION_MUSIC, JSPROP_ENUMERATE },
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{ "imageFileName", MISSION_IMAGE, JSPROP_ENUMERATE },
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{ "choicesKey", MISSION_CHOICES, JSPROP_ENUMERATE },
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{ "choice", MISSION_CHOICE, JSPROP_ENUMERATE },
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{ "instructionsKey", MISSION_INSTRUCTIONS, JSPROP_ENUMERATE },
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{ 0 }
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};
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static JSBool MissionShowMissionScreen(JSContext *context, JSObject *obj, uintN argc, jsval *argv, jsval *rval);
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static JSBool MissionShowShipModel(JSContext *context, JSObject *obj, uintN argc, jsval *argv, jsval *rval);
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static JSBool MissionResetMissionChoice(JSContext *context, JSObject *obj, uintN argc, jsval *argv, jsval *rval);
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static JSBool MissionMarkSystem(JSContext *context, JSObject *obj, uintN argc, jsval *argv, jsval *rval);
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static JSBool MissionUnmarkSystem(JSContext *context, JSObject *obj, uintN argc, jsval *argv, jsval *rval);
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static JSFunctionSpec Mission_funcs[] =
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{
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{ "showMissionScreen", MissionShowMissionScreen, 0, 0 },
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{ "showShipModel", MissionShowShipModel, 1, 0 },
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{ "resetMissionChoice", MissionResetMissionChoice, 0, 0 },
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{ "markSystem", MissionMarkSystem, 1, 0 },
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{ "unmarkSystem", MissionUnmarkSystem, 1, 0 },
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{ 0 }
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};
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static JSBool MissionGetProperty(JSContext *context, JSObject *obj, jsval name, jsval *vp)
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{
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if (!JSVAL_IS_INT(name)) return JS_TRUE;
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PlayerEntity *player = OPlayerForScripting();
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id result = nil;
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switch (JSVAL_TO_INT(name))
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{
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case MISSION_CHOICE:
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result = [player missionChoice_string];
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if (result == nil) result = @"None";
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break;
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default:
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OOReportJavaScriptBadPropertySelector(context, @"Mission", JSVAL_TO_INT(name));
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return NO;
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}
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if (result != nil) *vp = [result javaScriptValueInContext:context];
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return JS_TRUE;
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}
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static JSBool MissionSetProperty(JSContext *context, JSObject *obj, jsval name, jsval *vp)
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{
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if (!JSVAL_IS_INT(name)) return JS_TRUE;
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PlayerEntity *player = OPlayerForScripting();
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switch (JSVAL_TO_INT(name))
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{
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case MISSION_TEXT:
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if (JSVAL_IS_STRING(*vp))
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{
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JSString *jskey = JS_ValueToString(context, *vp);
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[player addMissionText: [NSString stringWithCString:JS_GetStringBytes(jskey)]];
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}
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break;
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case MISSION_MUSIC:
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if (JSVAL_IS_STRING(*vp))
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{
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JSString *jskey = JS_ValueToString(context, *vp);
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[player setMissionMusic: [NSString stringWithCString:JS_GetStringBytes(jskey)]];
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}
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break;
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case MISSION_IMAGE:
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if (JSVAL_IS_STRING(*vp))
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{
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NSString *str = JSValToNSString(context, *vp);
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if ([str length] == 0)
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str = @"none";
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[player setMissionImage:str];
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}
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break;
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case MISSION_CHOICES:
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if (JSVAL_IS_STRING(*vp))
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{
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JSString *jskey = JS_ValueToString(context, *vp);
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[player setMissionChoices: [NSString stringWithCString:JS_GetStringBytes(jskey)]];
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}
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break;
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case MISSION_INSTRUCTIONS:
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if (JSVAL_IS_STRING(*vp))
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{
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JSString *jskey = JS_ValueToString(context, *vp);
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NSString *ins = [NSString stringWithCString:JS_GetStringBytes(jskey)];
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if ([ins length])
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[player setMissionDescription:ins forMission:[[OOJSScript currentlyRunningScript] name]];
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else
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[player clearMissionDescriptionForMission:[[OOJSScript currentlyRunningScript] name]];
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}
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break;
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default:
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OOReportJavaScriptBadPropertySelector(context, @"Mission", JSVAL_TO_INT(name));
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return NO;
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}
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return JS_TRUE;
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}
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static JSBool MissionShowMissionScreen(JSContext *context, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
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{
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PlayerEntity *player = OPlayerForScripting();
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[player setGuiToMissionScreen];
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return JS_TRUE;
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}
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static JSBool MissionShowShipModel(JSContext *context, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
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{
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PlayerEntity *player = OPlayerForScripting();
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JSString *jskey = NULL;
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if (argc > 0 && JSVAL_IS_STRING(argv[0]))
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{
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jskey = JS_ValueToString(context, argv[0]);
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[player showShipModel: [NSString stringWithCString:JS_GetStringBytes(jskey)]];
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}
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return JS_TRUE;
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}
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static JSBool MissionResetMissionChoice(JSContext *context, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
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{
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PlayerEntity *player = OPlayerForScripting();
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[player resetMissionChoice];
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return JS_TRUE;
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}
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static JSBool MissionMarkSystem(JSContext *context, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
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{
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PlayerEntity *player = OPlayerForScripting();
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NSString *params = nil;
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params = [NSString concatenationOfStringsFromJavaScriptValues:argv count:argc separator:@" " inContext:context];
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[player addMissionDestination:params];
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return JS_TRUE;
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}
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static JSBool MissionUnmarkSystem(JSContext *context, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
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{
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PlayerEntity *player = OPlayerForScripting();
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NSString *params = nil;
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player = [NSString concatenationOfStringsFromJavaScriptValues:argv count:argc separator:@" " inContext:context];
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[player removeMissionDestination:params];
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return JS_TRUE;
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}
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static void ReportJSError(JSContext *context, const char *message, JSErrorReport *report)
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{
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NSString *severity = nil;
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NSString *messageText = nil;
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NSString *lineBuf = nil;
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NSString *messageClass = nil;
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NSString *highlight = @"*****";
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// Type of problem: error, warning or exception? (Strict flag wilfully ignored.)
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if (report->flags & JSREPORT_EXCEPTION) severity = @"exception";
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else if (report->flags & JSREPORT_WARNING)
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{
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severity = @"warning";
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highlight = @"-----";
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}
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else severity = @"error";
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// The error message itself
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messageText = [NSString stringWithUTF8String:message];
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// Get offending line, if present, and trim trailing line breaks
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lineBuf = [NSString stringWithUTF16String:report->uclinebuf];
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while ([lineBuf hasSuffix:@"\n"] || [lineBuf hasSuffix:@"\r"]) lineBuf = [lineBuf substringToIndex:[lineBuf length] - 1];
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// Log message class
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messageClass = [NSString stringWithFormat:@"script.javaScript.%@.%u", severity, report->errorNumber];
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// First line: problem description
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OOLog(messageClass, @"%@ JavaScript %@: %@", highlight, severity, messageText);
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// Second line: where error occured, and line if provided. (The line is only provided for compile-time errors, not run-time errors.)
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if ([lineBuf length] != 0)
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{
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OOLog(messageClass, @" %s, line %d: %@", report->filename, report->lineno, lineBuf);
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}
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else
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{
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OOLog(messageClass, @" %s, line %d.", report->filename, report->lineno);
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}
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}
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//===========================================================================
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// JavaScript engine initialisation and shutdown
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//===========================================================================
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@implementation OOJavaScriptEngine
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+ (OOJavaScriptEngine *)sharedEngine
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{
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if (sSharedEngine == nil) [[self alloc] init];
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return sSharedEngine;
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}
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- (id) init
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{
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assert(sSharedEngine == nil);
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self = [super init];
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assert(sizeof(jschar) == sizeof(unichar));
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|
|
/*set up global JS variables, including global and custom objects */
|
|
|
|
/* initialize the JS run time, and return result in runtime */
|
|
runtime = JS_NewRuntime(8L * 1024L * 1024L);
|
|
|
|
/* if runtime does not have a value, end the program here */
|
|
if (!runtime)
|
|
{
|
|
OOLog(@"script.javaScript.init.error", @"FATAL ERROR: failed to create JavaScript %@.", @"runtime");
|
|
exit(1);
|
|
}
|
|
|
|
/* create a context and associate it with the JS run time */
|
|
context = JS_NewContext(runtime, 8192);
|
|
JS_SetOptions(context, JSOPTION_VAROBJFIX | JSOPTION_STRICT | JSOPTION_NATIVE_BRANCH_CALLBACK);
|
|
|
|
/* if context does not have a value, end the program here */
|
|
if (!context)
|
|
{
|
|
OOLog(@"script.javaScript.init.error", @"FATAL ERROR: failed to create JavaScript %@.", @"context");
|
|
exit(1);
|
|
}
|
|
|
|
JS_SetErrorReporter(context, ReportJSError);
|
|
|
|
/* create the global object here */
|
|
globalObject = JS_NewObject(context, &global_class, NULL, NULL);
|
|
xglob = globalObject;
|
|
|
|
/* initialize the built-in JS objects and the global object */
|
|
JS_InitStandardClasses(context, globalObject);
|
|
JS_DefineProperties(context, globalObject, Global_props);
|
|
JS_DefineFunctions(context, globalObject, Global_funcs);
|
|
|
|
/*
|
|
systemObj = JS_DefineObject(context, globalObject, "system", &System_class, NULL, JSPROP_ENUMERATE | JSPROP_READONLY | JSPROP_PERMANENT);
|
|
JS_DefineProperties(context, systemObj, System_props);
|
|
JS_DefineFunctions(context, systemObj, System_funcs);
|
|
*/
|
|
|
|
missionObj = JS_DefineObject(context, globalObject, "mission", &Mission_class, NULL, JSPROP_ENUMERATE | JSPROP_READONLY | JSPROP_PERMANENT);
|
|
JS_DefineProperties(context, missionObj, Mission_props);
|
|
JS_DefineFunctions(context, missionObj, Mission_funcs);
|
|
|
|
InitOOJSVector(context, globalObject);
|
|
InitOOJSQuaternion(context, globalObject);
|
|
InitOOJSSystem(context, globalObject);
|
|
InitOOJSEntity(context, globalObject);
|
|
InitOOJSShip(context, globalObject);
|
|
InitOOJSStation(context, globalObject);
|
|
InitOOJSPlayer(context, globalObject);
|
|
InitOOJSScript(context, globalObject);
|
|
|
|
OOLog(@"script.javaScript.init.success", @"Set up JavaScript context.");
|
|
|
|
sSharedEngine = self;
|
|
return self;
|
|
}
|
|
|
|
|
|
- (void) dealloc
|
|
{
|
|
sSharedEngine = nil;
|
|
|
|
JS_DestroyContext(context);
|
|
JS_DestroyRuntime(runtime);
|
|
|
|
[super dealloc];
|
|
}
|
|
|
|
|
|
- (JSContext *) context
|
|
{
|
|
return context;
|
|
}
|
|
|
|
@end
|
|
|
|
|
|
void OOReportJavaScriptError(JSContext *context, NSString *format, ...)
|
|
{
|
|
va_list args;
|
|
|
|
va_start(args, format);
|
|
OOReportJavaScriptErrorWithArguments(context, format, args);
|
|
va_end(args);
|
|
}
|
|
|
|
|
|
void OOReportJavaScriptErrorWithArguments(JSContext *context, NSString *format, va_list args)
|
|
{
|
|
NSString *msg = nil;
|
|
|
|
msg = [[NSString alloc] initWithFormat:format arguments:args];
|
|
JS_ReportError(context, "%s", [msg UTF8String]);
|
|
[msg release];
|
|
}
|
|
|
|
|
|
void OOReportJavaScriptWarning(JSContext *context, NSString *format, ...)
|
|
{
|
|
va_list args;
|
|
|
|
va_start(args, format);
|
|
OOReportJavaScriptWarningWithArguments(context, format, args);
|
|
va_end(args);
|
|
}
|
|
|
|
|
|
void OOReportJavaScriptWarningWithArguments(JSContext *context, NSString *format, va_list args)
|
|
{
|
|
NSString *msg = nil;
|
|
|
|
msg = [[NSString alloc] initWithFormat:format arguments:args];
|
|
JS_ReportWarning(context, "%s", [msg UTF8String]);
|
|
[msg release];
|
|
}
|
|
|
|
|
|
void OOReportJavaScriptBadPropertySelector(JSContext *context, NSString *className, jsint selector)
|
|
{
|
|
OOReportJavaScriptError(context, @"Internal error: bad property identifier %i in property accessor for class %@.", selector, className);
|
|
}
|
|
|
|
|
|
BOOL NumberFromArgumentList(JSContext *context, NSString *scriptClass, NSString *function, uintN argc, jsval *argv, double *outNumber, uintN *outConsumed)
|
|
{
|
|
double value;
|
|
|
|
// Sanity checks.
|
|
if (outConsumed != NULL) *outConsumed = 0;
|
|
if (EXPECT_NOT(argc == 0 || argv == NULL || outNumber == NULL))
|
|
{
|
|
OOLogGenericParameterError();
|
|
return NO;
|
|
}
|
|
|
|
// Get value, if possible.
|
|
if (EXPECT_NOT(!JS_ValueToNumber(context, argv[0], &value) || isnan(value)))
|
|
{
|
|
// Failed; report bad parameters, if given a class and function.
|
|
if (scriptClass != nil && function != nil)
|
|
{
|
|
OOReportJavaScriptWarning(context, @"%@.%@(): expected number, got %@.", scriptClass, function, [NSString stringWithJavaScriptParameters:argv count:1 inContext:context]);
|
|
return NO;
|
|
}
|
|
}
|
|
|
|
// Success.
|
|
*outNumber = value;
|
|
if (outConsumed != NULL) *outConsumed = 1;
|
|
return YES;
|
|
}
|
|
|
|
|
|
JSObject *JSArrayFromNSArray(JSContext *context, NSArray *array)
|
|
{
|
|
JSObject *result = NULL;
|
|
unsigned i, count;
|
|
jsval value;
|
|
BOOL OK = YES;
|
|
|
|
if (array == nil) return NULL;
|
|
|
|
result = JS_NewArrayObject(context, 0, NULL);
|
|
if (result == NULL) return NULL;
|
|
|
|
count = [array count];
|
|
for (i = 0; i != count; ++i)
|
|
{
|
|
NS_DURING
|
|
value = [[array objectAtIndex:i] javaScriptValueInContext:context];
|
|
NS_HANDLER
|
|
value = JSVAL_VOID;
|
|
NS_ENDHANDLER
|
|
OK = JS_SetElement(context, result, i, &value);
|
|
if (!OK) return NULL;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
|
|
BOOL JSNewNSArrayValue(JSContext *context, NSArray *array, jsval *value)
|
|
{
|
|
JSObject *object = NULL;
|
|
|
|
if (value == NULL) return NO;
|
|
if ([array count] == 0)
|
|
{
|
|
*value = JSVAL_NULL;
|
|
return YES;
|
|
}
|
|
|
|
object = JSArrayFromNSArray(context, array);
|
|
if (object == NULL)
|
|
{
|
|
*value = JSVAL_VOID;
|
|
return NO;
|
|
}
|
|
|
|
*value = OBJECT_TO_JSVAL(object);
|
|
return YES;
|
|
}
|
|
|
|
|
|
@implementation NSObject (OOJavaScriptConversion)
|
|
|
|
- (jsval)javaScriptValueInContext:(JSContext *)context
|
|
{
|
|
return JSVAL_VOID;
|
|
}
|
|
|
|
@end
|
|
|
|
|
|
@implementation NSString (OOJavaScriptExtensions)
|
|
|
|
// Convert a JSString to an NSString.
|
|
+ (id)stringWithJavaScriptString:(JSString *)string
|
|
{
|
|
jschar *chars = NULL;
|
|
size_t length;
|
|
|
|
chars = JS_GetStringChars(string);
|
|
length = JS_GetStringLength(string);
|
|
|
|
return [NSString stringWithCharacters:chars length:length];
|
|
}
|
|
|
|
|
|
+ (id)stringWithJavaScriptValue:(jsval)value inContext:(JSContext *)context
|
|
{
|
|
JSString *string = NULL;
|
|
|
|
string = JS_ValueToString(context, value); // Calls the value's convert method if needed.
|
|
return [NSString stringWithJavaScriptString:string];
|
|
}
|
|
|
|
|
|
+ (id)stringWithJavaScriptParameters:(jsval *)params count:(uintN)count inContext:(JSContext *)context
|
|
{
|
|
if (params == nil && count != 0) return nil;
|
|
|
|
uintN i;
|
|
jsval val;
|
|
NSMutableString *result = [NSMutableString string];
|
|
NSString *valString = nil;
|
|
|
|
for (i = 0; i != count; ++i)
|
|
{
|
|
if (i != 0) [result appendString:@", "];
|
|
else [result appendString:@"("];
|
|
|
|
val = params[i];
|
|
valString = [self stringWithJavaScriptValue:val inContext:context];
|
|
if (JSVAL_IS_STRING(val))
|
|
{
|
|
[result appendFormat:@"\"%@\"", valString];
|
|
}
|
|
else
|
|
{
|
|
[result appendString:valString];
|
|
}
|
|
}
|
|
|
|
[result appendString:@")"];
|
|
return result;
|
|
}
|
|
|
|
|
|
- (jsval)javaScriptValueInContext:(JSContext *)context
|
|
{
|
|
size_t length;
|
|
unichar *buffer = NULL;
|
|
JSString *string = NULL;
|
|
|
|
length = [self length];
|
|
buffer = malloc(length * sizeof *buffer);
|
|
if (buffer == NULL) return JSVAL_VOID;
|
|
|
|
[self getCharacters:buffer];
|
|
|
|
string = JS_NewUCStringCopyN(context, buffer, length);
|
|
free(buffer);
|
|
|
|
return STRING_TO_JSVAL(string);
|
|
}
|
|
|
|
|
|
+ (id)concatenationOfStringsFromJavaScriptValues:(jsval *)values count:(size_t)count separator:(NSString *)separator inContext:(JSContext *)context
|
|
{
|
|
size_t i;
|
|
NSMutableString *result = nil;
|
|
NSString *element = nil;
|
|
|
|
if (count < 1) return nil;
|
|
if (values == NULL) return NULL;
|
|
|
|
for (i = 0; i != count; ++i)
|
|
{
|
|
element = [NSString stringWithJavaScriptValue:values[i] inContext:context];
|
|
if (result == nil) result = [element mutableCopy];
|
|
else
|
|
{
|
|
if (separator != nil) [result appendString:separator];
|
|
[result appendString:element];
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
@end
|
|
|
|
|
|
@implementation NSArray (OOJavaScriptConversion)
|
|
|
|
- (jsval)javaScriptValueInContext:(JSContext *)context
|
|
{
|
|
jsval value;
|
|
JSNewNSArrayValue(context, self, &value);
|
|
return value;
|
|
}
|
|
|
|
@end
|
|
|
|
|
|
@implementation NSNumber (OOJavaScriptConversion)
|
|
|
|
- (jsval)javaScriptValueInContext:(JSContext *)context
|
|
{
|
|
jsval result;
|
|
BOOL isFloat = NO;
|
|
const char *type;
|
|
long long longLongValue;
|
|
|
|
if (self == [NSNumber numberWithBool:YES])
|
|
{
|
|
/* Under OS X, at least, numberWithBool: returns one of two singletons.
|
|
There is no other way to reliably identify a boolean NSNumber.
|
|
Fun, eh? */
|
|
result = JSVAL_TRUE;
|
|
}
|
|
else if (self == [NSNumber numberWithBool:NO])
|
|
{
|
|
result = JSVAL_FALSE;
|
|
}
|
|
else
|
|
{
|
|
longLongValue = [self longLongValue];
|
|
if (longLongValue < (long long)JSVAL_INT_MIN || (long long)JSVAL_INT_MAX < longLongValue)
|
|
{
|
|
// values outside JSVAL_INT range are returned as doubles.
|
|
isFloat = YES;
|
|
}
|
|
else
|
|
{
|
|
// Check value type.
|
|
type = [self objCType];
|
|
if (type[0] == 'f' || type[0] == 'd') isFloat = YES;
|
|
}
|
|
|
|
if (isFloat)
|
|
{
|
|
if (!JS_NewDoubleValue(context, [self doubleValue], &result)) result = JSVAL_VOID;
|
|
}
|
|
else
|
|
{
|
|
result = INT_TO_JSVAL(longLongValue);
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
@end
|
|
|
|
|
|
@implementation NSNull (OOJavaScriptConversion)
|
|
|
|
- (jsval)javaScriptValueInContext:(JSContext *)context
|
|
{
|
|
return JSVAL_NULL;
|
|
}
|
|
|
|
@end
|
|
|
|
|
|
NSString *JSPropertyAsString(JSContext *context, JSObject *object, const char *name)
|
|
{
|
|
JSBool OK;
|
|
jsval returnValue;
|
|
NSString *result = nil;
|
|
|
|
if (context == NULL || object == NULL || name == NULL) return nil;
|
|
|
|
OK = JS_GetProperty(context, object, name, &returnValue);
|
|
if (OK && !JSVAL_IS_VOID(returnValue))
|
|
{
|
|
result = [NSString stringWithJavaScriptValue:returnValue inContext:context];
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
|
|
static NSMutableDictionary *sObjectConverters;
|
|
|
|
id JSValueToObject(JSContext *context, jsval value)
|
|
{
|
|
if (JSVAL_IS_NULL(value) || JSVAL_IS_VOID(value)) return nil;
|
|
|
|
if (JSVAL_IS_INT(value))
|
|
{
|
|
return [NSNumber numberWithInt:JSVAL_TO_INT(value)];
|
|
}
|
|
if (JSVAL_IS_DOUBLE(value))
|
|
{
|
|
return [NSNumber numberWithDouble:*JSVAL_TO_DOUBLE(value)];
|
|
}
|
|
if (JSVAL_IS_BOOLEAN(value))
|
|
{
|
|
return [NSNumber numberWithBool:JSVAL_TO_BOOLEAN(value)];
|
|
}
|
|
if (JSVAL_IS_STRING(value))
|
|
{
|
|
return JSValToNSString(context, value);
|
|
}
|
|
if (JSVAL_IS_OBJECT(value))
|
|
{
|
|
return JSObjectToObject(context, JSVAL_TO_OBJECT(value));
|
|
}
|
|
return nil;
|
|
}
|
|
|
|
|
|
id JSObjectToObject(JSContext *context, JSObject *object)
|
|
{
|
|
NSValue *wrappedClass = nil;
|
|
NSValue *wrappedConverter = nil;
|
|
JSClassConverterCallback converter = NULL;
|
|
|
|
wrappedClass = [NSValue valueWithPointer:JS_GetClass(object)];
|
|
if (wrappedClass != nil) wrappedConverter = [sObjectConverters objectForKey:wrappedClass];
|
|
if (wrappedConverter != nil)
|
|
{
|
|
converter = [wrappedConverter pointerValue];
|
|
return converter(context, object);
|
|
}
|
|
return nil;
|
|
}
|
|
|
|
|
|
id JSBasicPrivateObjectConverter(JSContext *context, JSObject *object)
|
|
{
|
|
id result;
|
|
|
|
/* This will do the right thing - for non-OOWeakReferences,
|
|
weakRefUnderlyingObject returns the object itself. For nil, of course,
|
|
it returns nil.
|
|
*/
|
|
result = JS_GetPrivate(context, object);
|
|
return [result weakRefUnderlyingObject];
|
|
}
|
|
|
|
|
|
void JSRegisterObjectConverter(JSClass *theClass, JSClassConverterCallback converter)
|
|
{
|
|
NSValue *wrappedClass = nil;
|
|
NSValue *wrappedConverter = nil;
|
|
|
|
if (theClass == NULL) return;
|
|
if (sObjectConverters == nil) sObjectConverters = [[NSMutableDictionary alloc] init];
|
|
|
|
wrappedClass = [NSValue valueWithPointer:theClass];
|
|
if (converter != nil)
|
|
{
|
|
wrappedConverter = [NSValue valueWithPointer:converter];
|
|
[sObjectConverters setObject:wrappedConverter forKey:wrappedClass];
|
|
}
|
|
else
|
|
{
|
|
[sObjectConverters removeObjectForKey:wrappedClass];
|
|
}
|
|
}
|