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/*
* 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 "FSTAsyncQueryListener.h"
#import "FSTDispatchQueue.h"
@implementation FSTAsyncQueryListener {
volatile BOOL _muted;
FSTViewSnapshotHandler _snapshotHandler;
FSTDispatchQueue *_dispatchQueue;
}
- (instancetype)initWithDispatchQueue:(FSTDispatchQueue *)dispatchQueue
snapshotHandler:(FSTViewSnapshotHandler)snapshotHandler {
if (self = [super init]) {
_dispatchQueue = dispatchQueue;
_snapshotHandler = snapshotHandler;
}
return self;
}
- (FSTViewSnapshotHandler)asyncSnapshotHandler {
return ^(FSTViewSnapshot *_Nullable snapshot, NSError *_Nullable error) {
[_dispatchQueue dispatchAsync:^{
if (!_muted) {
_snapshotHandler(snapshot, error);
}
}];
};
}
- (void)mute {
_muted = true;
}
@end
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