1/****************************************************************************** 2 * $Id: BlocklistScheduler.m 13492 2012-09-10 02:37:29Z livings124 $ 3 * 4 * Copyright (c) 2008-2012 Transmission authors and contributors 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the "Software"), 8 * to deal in the Software without restriction, including without limitation 9 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10 * and/or sell copies of the Software, and to permit persons to whom the 11 * Software is furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 22 * DEALINGS IN THE SOFTWARE. 23 *****************************************************************************/ 24 25#import "BlocklistScheduler.h" 26#import "BlocklistDownloader.h" 27 28//thirty second delay before running after option is changed 29#define SMALL_DELAY 30 30 31//update one week after previous update 32#define FULL_WAIT (60 * 60 * 24 * 7) 33 34@interface BlocklistScheduler (Private) 35 36- (void) runUpdater; 37 38@end 39 40@implementation BlocklistScheduler 41 42BlocklistScheduler * fScheduler = nil; 43+ (BlocklistScheduler *) scheduler 44{ 45 if (!fScheduler) 46 fScheduler = [[BlocklistScheduler alloc] init]; 47 48 return fScheduler; 49} 50 51- (void) updateSchedule 52{ 53 if ([BlocklistDownloader isRunning]) 54 return; 55 56 [self cancelSchedule]; 57 58 NSString * blocklistURL; 59 if (![[NSUserDefaults standardUserDefaults] boolForKey: @"BlocklistNew"] 60 || !((blocklistURL = [[NSUserDefaults standardUserDefaults] stringForKey: @"BlocklistURL"]) && 61 ![blocklistURL isEqualToString: @""]) 62 || ![[NSUserDefaults standardUserDefaults] boolForKey: @"BlocklistAutoUpdate"]) 63 return; 64 65 NSDate * lastUpdateDate = [[NSUserDefaults standardUserDefaults] objectForKey: @"BlocklistNewLastUpdate"]; 66 if (lastUpdateDate) 67 lastUpdateDate = [lastUpdateDate dateByAddingTimeInterval: FULL_WAIT]; 68 NSDate * closeDate = [NSDate dateWithTimeIntervalSinceNow: SMALL_DELAY]; 69 70 NSDate * useDate = lastUpdateDate ? [lastUpdateDate laterDate: closeDate] : closeDate; 71 72 fTimer = [[NSTimer alloc] initWithFireDate: useDate interval: 0 target: self selector: @selector(runUpdater) userInfo: nil repeats: NO]; 73 74 //current run loop usually means a second update won't work 75 NSRunLoop * loop = [NSRunLoop mainRunLoop]; 76 [loop addTimer: fTimer forMode: NSDefaultRunLoopMode]; 77 [loop addTimer: fTimer forMode: NSModalPanelRunLoopMode]; 78 [loop addTimer: fTimer forMode: NSEventTrackingRunLoopMode]; 79} 80 81- (void) cancelSchedule 82{ 83 [fTimer invalidate]; 84 [fTimer release]; 85 fTimer = nil; 86} 87 88@end 89 90@implementation BlocklistScheduler (Private) 91 92- (void) runUpdater 93{ 94 [fTimer release]; 95 fTimer = nil; 96 [BlocklistDownloader downloader]; 97} 98 99@end 100