mirror of
https://github.com/Tencent/Hippy.git
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82 lines
2.5 KiB
Objective-C
82 lines
2.5 KiB
Objective-C
/*!
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* iOS SDK
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*
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* Tencent is pleased to support the open source community by making
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* Hippy available.
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*
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* Copyright (C) 2019 THL A29 Limited, a Tencent company.
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* All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#import "HippyBundleOperationQueue.h"
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@interface HippyBundleOperationQueue () {
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NSMutableArray *_ops;
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}
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@end
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@implementation HippyBundleOperationQueue
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- (instancetype)init {
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self = [super init];
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if (self) {
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_ops = [NSMutableArray arrayWithCapacity:8];
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}
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return self;
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}
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- (void)addOperations:(NSArray<NSOperation *> *)ops {
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if (ops) {
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for (NSOperation *op in ops) {
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if ([op isReady]) {
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[op addObserver:self forKeyPath:@"finished" options:NSKeyValueObservingOptionNew context:NULL];
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[_ops addObject:op];
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[op start];
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}
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else if ([op isCancelled]) {
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}
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else {
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[op addObserver:self forKeyPath:@"ready" options:NSKeyValueObservingOptionNew context:NULL];
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[op addObserver:self forKeyPath:@"finished" options:NSKeyValueObservingOptionNew context:NULL];
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[_ops addObject:op];
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}
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}
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}
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}
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- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary<NSKeyValueChangeKey,id> *)change context:(void *)context {
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NSNumber *value = [change objectForKey:NSKeyValueChangeNewKey];
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if (!value) {
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return;
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}
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NSOperation *op = (NSOperation *)object;
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if (![op isKindOfClass:[NSOperation class]]) {
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return;
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}
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BOOL status = [value boolValue];
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if ([keyPath isEqualToString:@"ready"] && status) {
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[op removeObserver:self forKeyPath:@"ready" context:NULL];
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[op start];
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}
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else if ([keyPath isEqualToString:@"finished"] && status) {
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[_ops removeObject:object];
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[op removeObserver:self forKeyPath:@"finished" context:NULL];
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}
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}
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@end
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