Oolite 1.91.0.7644-241112-7f5034b
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OOJSInterfaceDefinition.m
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1/*
2
3OOJSInterfaceDefinition.m
4
5
6Oolite
7Copyright (C) 2004-2013 Giles C Williams and contributors
8
9This program is free software; you can redistribute it and/or
10modify it under the terms of the GNU General Public License
11as published by the Free Software Foundation; either version 2
12of the License, or (at your option) any later version.
13
14This program is distributed in the hope that it will be useful,
15but WITHOUT ANY WARRANTY; without even the implied warranty of
16MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17GNU General Public License for more details.
18
19You should have received a copy of the GNU General Public License
20along with this program; if not, write to the Free Software
21Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
22MA 02110-1301, USA.
23
24*/
25
28
29
30@implementation OOJSInterfaceDefinition
31
32- (id) init {
33 self = [super init];
34 _callback = JSVAL_VOID;
35 _callbackThis = NULL;
36
38
39 [[NSNotificationCenter defaultCenter] addObserver:self
40 selector:@selector(deleteJSPointers)
41 name:kOOJavaScriptEngineWillResetNotification
43
44 return self;
45}
46
47- (void) deleteJSPointers
48{
49
50 JSContext *context = OOJSAcquireContext();
51 _callback = JSVAL_VOID;
52 _callbackThis = NULL;
53 JS_RemoveValueRoot(context, &_callback);
54 JS_RemoveObjectRoot(context, &_callbackThis);
55
56 OOJSRelinquishContext(context);
57
58 [[NSNotificationCenter defaultCenter] removeObserver:self
59 name:kOOJavaScriptEngineWillResetNotification
61
62}
63
64- (void) dealloc
65{
66 [_owningScript release];
67
68 [self deleteJSPointers];
69
70 [super dealloc];
71}
72
73- (NSString *)title
74{
75 return _title;
76}
77
78
79- (void)setTitle:(NSString *)title
80{
81 [_title autorelease];
82 _title = [title retain];
83}
84
85
86- (NSString *)category
87{
88 return _category;
89}
90
91
92- (void)setCategory:(NSString *)category
93{
94 [_category autorelease];
95 _category = [category retain];
96}
97
98
99- (NSString *)summary
100{
101 return _summary;
102}
103
104
105- (void)setSummary:(NSString *)summary
106{
107 [_summary autorelease];
108 _summary = [summary retain];
109}
110
111
112- (jsval)callback
113{
114 return _callback;
115}
116
117
118- (void)setCallback:(jsval)callback
119{
120 JSContext *context = OOJSAcquireContext();
121 JS_RemoveValueRoot(context, &_callback);
123 OOJSAddGCValueRoot(context, &_callback, "OOJSInterfaceDefinition callback function");
124 OOJSRelinquishContext(context);
125}
126
127
128- (JSObject *)callbackThis
129{
130 return _callbackThis;
131}
132
133
134- (void)setCallbackThis:(JSObject *)callbackThis
135{
136 JSContext *context = OOJSAcquireContext();
137 JS_RemoveObjectRoot(context, &_callbackThis);
139 OOJSAddGCObjectRoot(context, &_callbackThis, "OOJSInterfaceDefinition callback this");
140 OOJSRelinquishContext(context);
141}
142
143
144- (void)runCallback:(NSString *)key
145{
147 JSContext *context = OOJSAcquireContext();
148 jsval rval = JSVAL_VOID;
149
150 jsval cKey = OOJSValueFromNativeObject(context, key);
151
152 OOJSScript *owner = [_owningScript retain]; // local copy needed
153 [OOJSScript pushScript:owner];
154
155 [engine callJSFunction:_callback
156 forObject:_callbackThis
157 argc:1
158 argv:&cKey
159 result:&rval];
160
161 [OOJSScript popScript:owner];
162 [owner release];
163
164 OOJSRelinquishContext(context);
165}
166
167
168- (NSComparisonResult)interfaceCompare:(OOJSInterfaceDefinition *)other
169{
170 NSComparisonResult byCategory = [_category caseInsensitiveCompare:[other category]];
171 if (byCategory == NSOrderedSame)
172 {
173 return [_title caseInsensitiveCompare:[other title]];
174 }
175 else
176 {
177 return byCategory;
178 }
179}
180
181@end
OOINLINE jsval OOJSValueFromNativeObject(JSContext *context, id object)
OOINLINE JSContext * OOJSAcquireContext(void)
#define OOJSAddGCObjectRoot(context, root, name)
OOINLINE void OOJSRelinquishContext(JSContext *context)
#define OOJSAddGCValueRoot(context, root, name)
void pushScript:(OOJSScript *script)
Definition OOJSScript.m:537
OOJSScript * currentlyRunningScript()
Definition OOJSScript.m:339
void popScript:(OOJSScript *script)
Definition OOJSScript.m:550
BOOL callJSFunction:forObject:argc:argv:result:(jsval function,[forObject] JSObject *jsThis,[argc] uintN argc,[argv] jsval *argv,[result] jsval *outResult)
OOJavaScriptEngine * sharedEngine()