transmission/macosx/BlocklistScheduler.m

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/******************************************************************************
2012-01-14 17:12:04 +00:00
* Copyright (c) 2008-2012 Transmission authors and contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*****************************************************************************/
#import "BlocklistScheduler.h"
#import "BlocklistDownloader.h"
//thirty second delay before running after option is changed
#define SMALL_DELAY 30
//update one week after previous update
#define FULL_WAIT (60 * 60 * 24 * 7)
@interface BlocklistScheduler (Private)
- (void)runUpdater;
@end
@implementation BlocklistScheduler
BlocklistScheduler* fScheduler = nil;
+ (BlocklistScheduler*)scheduler
{
if (!fScheduler)
{
fScheduler = [[BlocklistScheduler alloc] init];
}
return fScheduler;
}
- (void)updateSchedule
{
if (BlocklistDownloader.isRunning)
return;
[self cancelSchedule];
NSString* blocklistURL;
if (![NSUserDefaults.standardUserDefaults boolForKey:@"BlocklistNew"] ||
!((blocklistURL = [NSUserDefaults.standardUserDefaults stringForKey:@"BlocklistURL"]) && ![blocklistURL isEqualToString:@""]) ||
![NSUserDefaults.standardUserDefaults boolForKey:@"BlocklistAutoUpdate"])
{
return;
}
NSDate* lastUpdateDate = [NSUserDefaults.standardUserDefaults objectForKey:@"BlocklistNewLastUpdate"];
if (lastUpdateDate)
{
lastUpdateDate = [lastUpdateDate dateByAddingTimeInterval:FULL_WAIT];
}
NSDate* closeDate = [NSDate dateWithTimeIntervalSinceNow:SMALL_DELAY];
NSDate* useDate = lastUpdateDate ? [lastUpdateDate laterDate:closeDate] : closeDate;
fTimer = [[NSTimer alloc] initWithFireDate:useDate interval:0 target:self selector:@selector(runUpdater) userInfo:nil
repeats:NO];
//current run loop usually means a second update won't work
NSRunLoop* loop = NSRunLoop.mainRunLoop;
[loop addTimer:fTimer forMode:NSDefaultRunLoopMode];
[loop addTimer:fTimer forMode:NSModalPanelRunLoopMode];
[loop addTimer:fTimer forMode:NSEventTrackingRunLoopMode];
}
- (void)cancelSchedule
{
[fTimer invalidate];
fTimer = nil;
}
@end
@implementation BlocklistScheduler (Private)
- (void)runUpdater
{
fTimer = nil;
[BlocklistDownloader downloader];
}
@end