blob: 05407b2a98c1e6b11a5c76dfa9a0d5f67654972f (
plain)
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
|
/*
* Copyright 2017 Google
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#import "FSTLocalViewChanges.h"
#import "FSTDocument.h"
#import "FSTViewSnapshot.h"
NS_ASSUME_NONNULL_BEGIN
@interface FSTLocalViewChanges ()
- (instancetype)initWithQuery:(FSTQuery *)query
addedKeys:(FSTDocumentKeySet *)addedKeys
removedKeys:(FSTDocumentKeySet *)removedKeys NS_DESIGNATED_INITIALIZER;
@end
@implementation FSTLocalViewChanges
+ (instancetype)changesForViewSnapshot:(FSTViewSnapshot *)viewSnapshot {
FSTDocumentKeySet *addedKeys = [FSTDocumentKeySet keySet];
FSTDocumentKeySet *removedKeys = [FSTDocumentKeySet keySet];
for (FSTDocumentViewChange *docChange in viewSnapshot.documentChanges) {
switch (docChange.type) {
case FSTDocumentViewChangeTypeAdded:
addedKeys = [addedKeys setByAddingObject:docChange.document.key];
break;
case FSTDocumentViewChangeTypeRemoved:
removedKeys = [removedKeys setByAddingObject:docChange.document.key];
break;
default:
// Do nothing.
break;
}
}
return [self changesForQuery:viewSnapshot.query addedKeys:addedKeys removedKeys:removedKeys];
}
+ (instancetype)changesForQuery:(FSTQuery *)query
addedKeys:(FSTDocumentKeySet *)addedKeys
removedKeys:(FSTDocumentKeySet *)removedKeys {
return
[[FSTLocalViewChanges alloc] initWithQuery:query addedKeys:addedKeys removedKeys:removedKeys];
}
- (instancetype)initWithQuery:(FSTQuery *)query
addedKeys:(FSTDocumentKeySet *)addedKeys
removedKeys:(FSTDocumentKeySet *)removedKeys {
self = [super init];
if (self) {
_query = query;
_addedKeys = addedKeys;
_removedKeys = removedKeys;
}
return self;
}
@end
NS_ASSUME_NONNULL_END
|