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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #import "ios/web/crw_network_activity_indicator_manager.h" | |
| 6 | |
| 7 #import <UIKit/UIKit.h> | |
| 8 | |
| 9 #include "base/logging.h" | |
| 10 #include "base/mac/scoped_nsobject.h" | |
| 11 #include "base/threading/thread_checker.h" | |
| 12 | |
| 13 #if !defined(__has_feature) || !__has_feature(objc_arc) | |
| 14 #error "This file requires ARC support." | |
| 15 #endif | |
| 16 | |
| 17 @interface CRWNetworkActivityIndicatorManager () { | |
| 18 base::scoped_nsobject<NSMutableDictionary> _groupCounts; | |
| 19 NSUInteger _totalCount; | |
| 20 base::ThreadChecker _threadChecker; | |
| 21 } | |
| 22 | |
| 23 @end | |
| 24 | |
| 25 @implementation CRWNetworkActivityIndicatorManager | |
| 26 | |
| 27 + (CRWNetworkActivityIndicatorManager*)sharedInstance { | |
| 28 static CRWNetworkActivityIndicatorManager* instance = | |
| 29 [[CRWNetworkActivityIndicatorManager alloc] init]; | |
| 30 return instance; | |
| 31 } | |
| 32 | |
| 33 - (instancetype)init { | |
| 34 self = [super init]; | |
| 35 if (self) { | |
| 36 _groupCounts.reset([[NSMutableDictionary alloc] init]); | |
| 37 _totalCount = 0; | |
| 38 } | |
| 39 return self; | |
| 40 } | |
| 41 | |
| 42 - (void)startNetworkTaskForGroup:(NSString*)group { | |
| 43 [self startNetworkTasks:1 forGroup:group]; | |
| 44 } | |
| 45 | |
| 46 - (void)stopNetworkTaskForGroup:(NSString*)group { | |
| 47 [self stopNetworkTasks:1 forGroup:group]; | |
| 48 } | |
| 49 | |
| 50 - (void)startNetworkTasks:(NSUInteger)numTasks forGroup:(NSString*)group { | |
| 51 DCHECK(_threadChecker.CalledOnValidThread()); | |
| 52 DCHECK(group); | |
| 53 DCHECK_GT(numTasks, 0U); | |
| 54 NSUInteger count = 0; | |
| 55 NSNumber* number = [_groupCounts objectForKey:group]; | |
| 56 if (number) { | |
| 57 count = [number unsignedIntegerValue]; | |
| 58 DCHECK_GT(count, 0U); | |
| 59 } | |
| 60 count += numTasks; | |
| 61 [_groupCounts setObject:@(count) forKey:group]; | |
| 62 _totalCount += numTasks; | |
| 63 if (_totalCount == numTasks) { | |
| 64 [[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:YES]; | |
| 65 } | |
| 66 } | |
| 67 | |
| 68 - (void)stopNetworkTasks:(NSUInteger)numTasks forGroup:(NSString*)group { | |
| 69 DCHECK(_threadChecker.CalledOnValidThread()); | |
| 70 DCHECK(group); | |
| 71 DCHECK_GT(numTasks, 0U); | |
| 72 NSNumber* number = [_groupCounts objectForKey:group]; | |
| 73 DCHECK(number); | |
| 74 NSUInteger count = [number unsignedIntegerValue]; | |
| 75 DCHECK(count >= numTasks); | |
| 76 count -= numTasks; | |
| 77 if (count == 0) { | |
| 78 [_groupCounts removeObjectForKey:group]; | |
| 79 } else { | |
| 80 [_groupCounts setObject:@(count) forKey:group]; | |
| 81 } | |
| 82 _totalCount -= numTasks; | |
| 83 if (_totalCount == 0) { | |
| 84 [[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:NO]; | |
| 85 } | |
| 86 } | |
| 87 | |
| 88 - (NSUInteger)clearNetworkTasksForGroup:(NSString*)group { | |
| 89 DCHECK(_threadChecker.CalledOnValidThread()); | |
| 90 DCHECK(group); | |
| 91 NSNumber* number = [_groupCounts objectForKey:group]; | |
| 92 if (!number) { | |
| 93 return 0; | |
| 94 } | |
| 95 NSUInteger count = [number unsignedIntegerValue]; | |
| 96 DCHECK_GT(count, 0U); | |
| 97 [self stopNetworkTasks:count forGroup:group]; | |
| 98 return count; | |
| 99 } | |
| 100 | |
| 101 - (NSUInteger)numNetworkTasksForGroup:(NSString*)group { | |
| 102 DCHECK(_threadChecker.CalledOnValidThread()); | |
| 103 DCHECK(group); | |
| 104 NSNumber* number = [_groupCounts objectForKey:group]; | |
| 105 if (!number) { | |
| 106 return 0; | |
| 107 } | |
| 108 return [number unsignedIntegerValue]; | |
| 109 } | |
| 110 | |
| 111 - (NSUInteger)numTotalNetworkTasks { | |
| 112 DCHECK(_threadChecker.CalledOnValidThread()); | |
| 113 return _totalCount; | |
| 114 } | |
| 115 | |
| 116 @end | |
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Chromium Code Reviews
Issue 2566493003:
Remove CRWNetworkActivityIndicatorManager. (Closed)
