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
|
/* -*-objc-*-
*
* GNUstep RSS Kit
* Copyright (C) 2006 Guenther Noack
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, in version 2.1
* of the License
*
* 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#import "RSSLinks.h"
#import "RSSArticle.h"
#import "RSSArticle+Storage.h"
#import "GNUstep.h"
// change notification
NSString* RSSArticleChangedNotification = @"RSSArticleChangedNotification";
@implementation RSSArticle
- (id) init
{
return [self initWithHeadline: @"no headline"
url: @"no URL"
description: @"no description"
date: AUTORELEASE([NSDate new]) ];
}
- (id) initWithHeadline: (NSString*) myHeadline
url: (NSString*) myUrl
description: (NSString*) myDescription
date: (NSDate*) myDate
{
[super init];
ASSIGN(headline, myHeadline);
ASSIGN(url, myUrl);
ASSIGN(description, myDescription);
ASSIGN(date, myDate);
ASSIGN(links, AUTORELEASE([[NSMutableArray alloc] init]));
return self;
}
- (void) dealloc
{
RELEASE(headline);
RELEASE(url);
RELEASE(description);
RELEASE(date);
RELEASE(links);
[super dealloc];
}
- (NSString *) headline
{
return headline;
}
- (NSString *) url
{
return url;
}
- (NSString *) description
{
return headline;
}
- (NSString*) content
{
return AUTORELEASE(RETAIN(description));
}
- (NSDate*) date
{
return date;
}
- (void) setDate: (NSDate*) aDate
{
ASSIGN(date, aDate);
}
- (void) setFeed:(id<RSSMutableFeed>)aFeed
{
// Feed is NON-RETAINED!
feed = aFeed;
[self notifyChange];
}
-(void)notifyChange
{
[[NSNotificationCenter defaultCenter] postNotificationName: RSSArticleChangedNotification
object: self];
}
- (id<RSSFeed>) feed
{
// Feed is NON-RETAINED!
return feed;
}
/**
* This method is intended to make sure that the replacing article keeps
* some fields from the old (this) article. Subclasses will probably want
* to override this, but shouldn't forget calling the super implementation,
* first.
*/
-(void) willBeReplacedByArticle: (id<RSSMutableArticle>) newArticle
{
NSParameterAssert(newArticle != nil);
NSParameterAssert(self != newArticle);
NSParameterAssert([self isEqual: newArticle] == YES);
// Date stays the same. For everything else, the newer version is better.
[newArticle setDate: date];
}
- (NSURL*) enclosure
{
return [[enclosure retain] autorelease];
}
/*
* This method checks if the specified link is a enclosure. If it is, it is
* stored in the article's enclosure field so that it can be easily returned
* using the -enclosure method.
*/
-(void)_checkLinkForEnclosure: (NSURL*)link
{
if ([link isKindOfClass: [RSSEnclosureLink class]]) {
ASSIGN(enclosure, link);
}
}
- (void) setLinks: (NSArray *) someLinks
{
int i;
DESTROY(enclosure);
[links setArray: someLinks];
for (i=0; i<[links count]; i++) {
[self _checkLinkForEnclosure: [links objectAtIndex: i]];
}
[self notifyChange];
}
- (void) addLink: (NSURL *) anURL
{
if (anURL == nil)
return;
[links addObject: anURL];
[self _checkLinkForEnclosure: anURL];
[self notifyChange];
}
- (NSArray *) links
{
return links;
}
// Equality and hash codes
- (NSUInteger) hash
{
return [headline hash] ^ [url hash];
}
/**
* RSS Articles are equal if both the article headlines
* and the article URLs are equal. If they are equal is
* tested by calling the isEqual: method on those.
*/
- (BOOL) isEqual: (id)anObject
{
if ( ( [headline isEqualToString: [anObject headline]] == YES ) &&
( [url isEqualToString: [anObject url]] == YES ) )
{
return YES;
}
else
{
return NO;
}
}
@end
|
