1/****************************************************************************** 2 * Copyright (c) 2008-2012 Transmission authors and contributors 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 19 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 20 * DEALINGS IN THE SOFTWARE. 21 *****************************************************************************/ 22 23#import "BlocklistScheduler.h" 24#import "BlocklistDownloader.h" 25 26//thirty second delay before running after option is changed 27#define SMALL_DELAY 30 28 29//update one week after previous update 30#define FULL_WAIT (60 * 60 * 24 * 7) 31 32@interface BlocklistScheduler (Private) 33 34- (void) runUpdater; 35 36@end 37 38@implementation BlocklistScheduler 39 40BlocklistScheduler * fScheduler = nil; 41+ (BlocklistScheduler *) scheduler 42{ 43 if (!fScheduler) 44 fScheduler = [[BlocklistScheduler alloc] init]; 45 46 return fScheduler; 47} 48 49- (void) updateSchedule 50{ 51 if ([BlocklistDownloader isRunning]) 52 return; 53 54 [self cancelSchedule]; 55 56 NSString * blocklistURL; 57 if (![[NSUserDefaults standardUserDefaults] boolForKey: @"BlocklistNew"] 58 || !((blocklistURL = [[NSUserDefaults standardUserDefaults] stringForKey: @"BlocklistURL"]) && 59 ![blocklistURL isEqualToString: @""]) 60 || ![[NSUserDefaults standardUserDefaults] boolForKey: @"BlocklistAutoUpdate"]) 61 return; 62 63 NSDate * lastUpdateDate = [[NSUserDefaults standardUserDefaults] objectForKey: @"BlocklistNewLastUpdate"]; 64 if (lastUpdateDate) 65 lastUpdateDate = [lastUpdateDate dateByAddingTimeInterval: FULL_WAIT]; 66 NSDate * closeDate = [NSDate dateWithTimeIntervalSinceNow: SMALL_DELAY]; 67 68 NSDate * useDate = lastUpdateDate ? [lastUpdateDate laterDate: closeDate] : closeDate; 69 70 fTimer = [[NSTimer alloc] initWithFireDate: useDate interval: 0 target: self selector: @selector(runUpdater) userInfo: nil repeats: NO]; 71 72 //current run loop usually means a second update won't work 73 NSRunLoop * loop = [NSRunLoop mainRunLoop]; 74 [loop addTimer: fTimer forMode: NSDefaultRunLoopMode]; 75 [loop addTimer: fTimer forMode: NSModalPanelRunLoopMode]; 76 [loop addTimer: fTimer forMode: NSEventTrackingRunLoopMode]; 77} 78 79- (void) cancelSchedule 80{ 81 [fTimer invalidate]; 82 fTimer = nil; 83} 84 85@end 86 87@implementation BlocklistScheduler (Private) 88 89- (void) runUpdater 90{ 91 fTimer = nil; 92 [BlocklistDownloader downloader]; 93} 94 95@end 96