Dirac/DiracDocController.m

   1 //
   2 //  DiracDocController.m
   3 //  Dirac
   4 //
   5 //  Created by Ichi Kanaya on 11/04/21.
   6 //  Copyright 2011 大阪大学. All rights reserved.
   7 //
   8
   9 #import <math.h>
  10 #import "DiracDocController.h"
  11 #import "DiracDoc.h"
  12 #import "DiracURLLoader.h"
  13 #import "DiracStatusXMLParser.h"
  14
  15 #define WINDOW_SIZE (24 * 3600)
  16
  17 @implementation DiracDocController
  18
  19 @synthesize statuses;
  20
  21 - (id)init {
  22     self = [super init];
  23     if (self) {
  24         // Initialization code here.
  25     }
  26     return self;
  27 }
  28
  29 - (void)dealloc {
  30     [super dealloc];
  31 }
  32
  33 - (void)awakeFromNib {
  34     DiracDoc *_doc = (DiracDoc *)doc;
  35     [_doc registerMeAsAController: self];
  36     timer = [NSTimer scheduledTimerWithTimeInterval: 30 * 60
  37                                              target: self
  38                                            selector: @selector(timer_fire:)
  39                                            userInfo: nil
  40                                             repeats: YES];
  41     [progressIndicator setUsesThreadedAnimation: YES];
  42 }
  43
  44 - (void)timer_fire: (NSTimer *)timer {
  45     [self reload: self];
  46 }
  47
  48 - (IBAction)reload: (id)sender {
  49     NSString *userName = [userNameTextField stringValue];
  50     if (userName) {
  51         DiracDoc *_doc = (DiracDoc *)doc;
  52         _doc.userName = userName;
  53         [self load];
  54     }
  55 }
  56
  57 - (void)load {
  58     NSString *userName = ((DiracDoc *)doc).userName;
  59     [userNameTextField setStringValue: userName];
  60     [window setTitle: userName];
  61     [self loadTimeLineByUserName: userName];
  62 }
  63
  64 - (void)loadTimeLineByUserName: (NSString *)userName {
  65     static NSString *urlFormat = @"http://twitter.com/status/user_timeline/%@.xml";
  66     NSString *url = [NSString stringWithFormat: urlFormat, userName];
  67
  68     [progressIndicator startAnimation: self];
  69     DiracURLLoader *loder = [[[DiracURLLoader alloc] init] autorelease];
  70     [[NSNotificationCenter defaultCenter] addObserver: self
  71                                              selector: @selector(loadTimeLineDidEnd:)
  72                                                  name: @"connectionDidFinishNotification"
  73                                                object: loder];
  74     [[NSNotificationCenter defaultCenter] addObserver: self
  75                                              selector: @selector(loadTimeLineFailed:)
  76                                                  name: @"connectionDidFailWithError"
  77                                                object: loder];
  78
  79     // [UIApplication sharedApplication].networkActivityIndicatorVisible = YES;
  80
  81     [loder loadFromUrl: url method: @"GET"];
  82 }
  83
  84 - (void) loadTimeLineDidEnd: (NSNotification *)notification {
  85     DiracURLLoader *loder = (DiracURLLoader *)[notification object];
  86     NSData *xmlData = loder.data;
  87     DiracStatusXMLParser *parser = [[[DiracStatusXMLParser alloc] init] autorelease];
  88     self.statuses = [parser parseStatuses: xmlData];
  89     int count = 0;
  90     NSTimeInterval biggest_time_interval = -1;
  91     for (NSDictionary *status in statuses) {
  92         NSDate *created_date = [NSDate dateWithNaturalLanguageString: [status objectForKey: @"created_at"]];
  93         NSTimeInterval interval = [created_date timeIntervalSinceNow];
  94         if (interval > -WINDOW_SIZE) {
  95             ++count;
  96             if (interval < biggest_time_interval) {
  97                 biggest_time_interval = interval;
  98             }
  99         }
 100     }
 101     float divider = (-biggest_time_interval < WINDOW_SIZE) ? -biggest_time_interval : WINDOW_SIZE;
 102     float diracCount = (float)count / divider * 3600;
 103     [levelIndicator setFloatValue: diracCount * 1000];
 104     [progressIndicator stopAnimation: self];
 105     NSLog(@"%@ is twittering at a speed of %f[dirac].", ((DiracDoc *)doc).userName, diracCount);
 106 }
 107
 108 - (void) loadTimeLineFailed: (NSNotification *)notification {
 109     // do something
 110 }
 111
 112 @end