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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/1999/REC-html401-19991224/loose.dtd">
<html>
<head>
<!-- BEGIN META TAG INFO -->
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<link rel="home" href="http://developer.apple.com/">
<link rel="find" href="http://developer.apple.com/search/">
<link rel="stylesheet" type="text/css" href="../../documentation/css/adcstyle.css" title="fonts">
<script language="JavaScript" src="../../documentation/js/adc.js" type="text/javascript"></script>
<!-- END META TAG INFO -->
<!-- BEGIN TITLE -->
<title>Birthdays - /BirthdaysPlugIn/BirthdaysPlugIn.m</title>
<!-- END TITLE -->
<script language="JavaScript">
function JumpToNewPage() {
window.location=document.scpopupmenu.gotop.value;
return true;
}
</script>
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<body>
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<center>
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<table width="680" border="0" cellpadding="0" cellspacing="0">
<tr>
<td scope="row"><img width="340" height="10" src="images/1dot.gif" alt=""></td>
<td><img width="340" height="10" src="images/1dot.gif" alt=""></td>
</tr>
<tr valign="middle">
<td align="left" colspan="2">
<a href="http://developer.apple.com/">ADC Home</a> > <a href="../../referencelibrary/index.html#//apple_ref/doc/uid/TP30000943" target="_top">Reference Library</a> > <a href="../index.html#//apple_ref/doc/uid/TP30000925" target="_top">Sample Code</a> > <a href="../AppleApplications/index.html#//apple_ref/doc/uid/TP30000925-TP30000418" target="_top">Apple Applications</a> > <a href="../AppleApplications/idxDashboard-date.html#//apple_ref/doc/uid/TP30000925-TP30000418-TP40001366">Dashboard</a> > <A HREF="javascript:location.replace('index.html');">Birthdays</A> >
</td>
</tr>
<tr>
<td colspan="2" scope="row"><img width="680" height="35" src="images/1dot.gif" alt=""></td>
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<!-- START MAIN CONTENT -->
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<table width="680" border="0" cellpadding="0" cellspacing="0">
<tr align="left" valign="top">
<td><h1><div id="pagehead">Birthdays</div></h1></td>
</tr>
</table>
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<table width="680" border="0" cellpadding="0" cellspacing="0">
<tr align="left" valign="top">
<td id="scdetails">
<h2>/BirthdaysPlugIn/BirthdaysPlugIn.m</h2>
<form name="scpopupmenu" onSubmit="return false;" method=post>
<p><strong>View Source Code:</strong>
<select name="gotop" onChange="JumpToNewPage();" style="width:340px"><option selected value="ingnore">Select File</option>
<option value="listing1.html">/Birthdays.wdgt/Birthdays.css</option>
<option value="listing2.html">/Birthdays.wdgt/Birthdays.html</option>
<option value="listing3.html">/Birthdays.wdgt/Scripts/Birthdays.js</option>
<option value="listing4.html">/Birthdays.wdgt/Scripts/Buttons.js</option>
<option value="listing5.html">/BirthdaysPlugIn/BirthdaysPlugIn.h</option>
<option value="listing6.html">/BirthdaysPlugIn/BirthdaysPlugIn.m</option>
<option value="listing7.html">/Code/Birthdays.css</option>
<option value="listing8.html">/Code/Birthdays.html</option>
<option value="listing9.html">/Code/Birthdays.js</option>
<option value="listing10.html">/Code/Buttons.js</option></select>
</p>
</form>
<p><strong><a href="Birthdays.zip">Download Sample</a></strong> (“Birthdays.zip”, 114.3K)<BR>
<strong><a href="Birthdays.dmg">Download Sample</a></strong> (“Birthdays.dmg”, 110.6K)</p>
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<p><strong><a href="#">Download Sample</a></strong> (“filename.sit”, 500K)</p>
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<td scope="row">
<!--googleon: index -->
<pre class="sourcecodebox">/*
File: BirthdaysPlugIn.m
Abstract: Widget plug-in that fetches birthdays
occurring in the current day, week, or month
and returns relevant strings back to JavaScript.
Version: 1.1
Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple
Computer, Inc. ("Apple") in consideration of your agreement to the
following terms, and your use, installation, modification or
redistribution of this Apple software constitutes acceptance of these
terms. If you do not agree with these terms, please do not use,
install, modify or redistribute this Apple software.
In consideration of your agreement to abide by the following terms, and
subject to these terms, Apple grants you a personal, non-exclusive
license, under Apple's copyrights in this original Apple software (the
"Apple Software"), to use, reproduce, modify and redistribute the Apple
Software, with or without modifications, in source and/or binary forms;
provided that if you redistribute the Apple Software in its entirety and
without modifications, you must retain this notice and the following
text and disclaimers in all such redistributions of the Apple Software.
Neither the name, trademarks, service marks or logos of Apple Computer,
Inc. may be used to endorse or promote products derived from the Apple
Software without specific prior written permission from Apple. Except
as expressly stated in this notice, no other rights or licenses, express
or implied, are granted by Apple herein, including but not limited to
any patent rights that may be infringed by your derivative works or by
other works in which the Apple Software may be incorporated.
The Apple Software is provided by Apple on an "AS IS" basis. APPLE
MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND
OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS.
IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL
OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION,
MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED
AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE),
STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
Copyright © 2006 Apple Computer, Inc., All Rights Reserved
*/
#import "BirthdaysPlugIn.h"
// Comparison function for sorting returned ABPeople by birthday
int CompareDates(id person1, id person2, void *context) {
if ([person1 isMemberOfClass:[ABPerson class]] && [person2 isMemberOfClass:[ABPerson class]]) {
NSCalendarDate *cal1 = [[person1 valueForKey:kABBirthdayProperty] dateWithCalendarFormat:nil timeZone:nil];
NSCalendarDate *cal2 = [[person2 valueForKey:kABBirthdayProperty] dateWithCalendarFormat:nil timeZone:nil];
if ([cal1 monthOfYear] < [cal2 monthOfYear]) {
return NSOrderedAscending;
} else if ([cal1 monthOfYear] > [cal2 monthOfYear]) {
return NSOrderedDescending;
} else { // same month; compare the days
if ([cal1 dayOfMonth] < [cal2 dayOfMonth]) {
return NSOrderedAscending;
} else if ([cal1 dayOfMonth] > [cal2 dayOfMonth]) {
return NSOrderedDescending;
}
}
return NSOrderedSame;
}
return NSOrderedDescending;
}
@implementation BirthdaysPlugIn
#pragma mark *** WidgetPlugin methods ***
// initWithWebView is called as the Dashboard widget and its WebView
// are initialized, which is when the widget plug-in is loaded
// This is just an object initializer; DO NOT use the passed WebView
// to manipulate WebScriptObjects or anything in the WebView's hierarchy
- (id) initWithWebView:(WebView*)webView {
self = [super init];
return self;
}
#pragma mark *** WebScripting methods ***
// windowScriptObjectAvailable passes the JavaScript window object referring
// to the plug-in's parent window (in this case, the Dashboard widget)
// We use that to register our plug-in as a var of the window object;
// This allows the plug-in to be referenced from JavaScript via
// window.<plugInName>, or just <plugInName>
- (void) windowScriptObjectAvailable:(WebScriptObject*)webScriptObject {
[webScriptObject setValue:self forKey:@"BirthdaysPlugIn"];
}
// Prevent direct key access from JavaScript
// Write accessor methods and expose those if necessary
+ (BOOL) isKeyExcludedFromWebScript:(const char*)key {
return YES;
}
// Used for convenience of WebScripting names below
NSString * const kWebSelectorPrefix = @"web_";
// This is where prefixing our JavaScript methods with web_ pays off:
// instead of a huge if/else trail to decide which methods to exclude,
// just check the selector names for kWebSelectorPrefix
+ (BOOL) isSelectorExcludedFromWebScript:(SEL)aSelector {
return !([NSStringFromSelector(aSelector) hasPrefix:kWebSelectorPrefix]);
}
// Another simple implementation: take the first token of the Obj-C method signature
// and remove the web_ prefix. So web_birthdaysToday is called from JavaScript as
// BirthdaysPlugIn.birthdaysToday
+ (NSString *) webScriptNameForSelector:(SEL)aSelector {
NSString* selName = NSStringFromSelector(aSelector);
if ([selName hasPrefix:kWebSelectorPrefix] && ([selName length] > [kWebSelectorPrefix length])) {
return [[[selName substringFromIndex:[kWebSelectorPrefix length]] componentsSeparatedByString: @":"] objectAtIndex: 0];
}
return nil;
}
#pragma mark *** Web-exposed methods ***
- (NSArray *) web_birthdaysToday {
return [self stringResultsForPeople:[self birthdaysToday]];
}
- (NSArray *) web_birthdaysThisWeek {
return [self stringResultsForPeople:[self birthdaysThisWeek]];
}
- (NSArray *) web_birthdaysThisMonth {
return [self stringResultsForPeople:[self birthdaysThisMonth]];
}
#pragma mark *** Birthday logic ***
- (NSArray *) birthdaysToday {
// AB search requires "today" to be an interval of 1 (not 0)
return [self peopleWithBirthdaysInFuture:1];
}
// Find upcoming birthdays remaining this week
// Does not find birthdays in the past (i.e. starts from today)
- (NSArray *) birthdaysThisWeek {
NSDate *now = [NSDate date];
NSCalendar *gregorian = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
NSDateComponents *todaysDate = [gregorian components:NSWeekdayCalendarUnit fromDate:now];
// - [NSCalendarDate dayOfWeek] is 0-6; we need a value of 1-7 for search to work
int daysLeftInWeek = (kDaysInWeek - [todaysDate weekday]);
return [self peopleWithBirthdaysInFuture:daysLeftInWeek];
}
// Finds upcoming birthdays for the rest of the current month
// Does not find birthdays in the past (i.e. starts from today)
- (NSArray *) birthdaysThisMonth {
NSDate *rightNow = [NSDate date];
NSCalendar *gregorian = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
NSRange monthRange = [gregorian rangeOfUnit:NSDayCalendarUnit inUnit:NSMonthCalendarUnit forDate:rightNow];
NSDateComponents *dayOfWeekComponent = [gregorian components:NSDayCalendarUnit fromDate:rightNow];
// Needs to be at least 1 for search to work;
// If today is the last day of the month we still have a value of 1,
// second to last day --> 2, etc
int daysLeftInMonth = 1;
daysLeftInMonth += ( monthRange.length - [dayOfWeekComponent day]);
return [self peopleWithBirthdaysInFuture:daysLeftInMonth];
}
// Searches Address Book for people with birthdays in the next __ days
- (NSArray *) peopleWithBirthdaysInFuture:(int)days {
NSNumber *searchInterval = [NSNumber numberWithInt:(kSecondsInDay*days)];
ABSearchElement *birthdayToday = [ABPerson searchElementForProperty:kABBirthdayProperty
label:nil
key:nil
value:searchInterval
comparison:kABWithinIntervalFromTodayYearless];
return [[ABAddressBook sharedAddressBook] recordsMatchingSearchElement:birthdayToday];
}
- (NSDate *) myBirthday {
return [[[ABAddressBook sharedAddressBook] me] valueForProperty:kABBirthdayProperty];;
}
#pragma mark *** Utility methods ***
// Condense useful info into string arrays for transmission across ObjC-JS bridge
- (NSArray *) stringResultsForPeople:(NSArray *) people {
NSArray *sortedPeople = [people sortedArrayUsingFunction:CompareDates context:NULL];
NSMutableArray *results = [NSMutableArray arrayWithCapacity:[sortedPeople count]];
ABPerson *currPerson = nil;
NSEnumerator *peopleEnumerator = [sortedPeople objectEnumerator];
while (currPerson = [peopleEnumerator nextObject]) {
NSString *firstName = [currPerson valueForProperty:kABFirstNameProperty];
NSString *lastName = [currPerson valueForProperty:kABLastNameProperty];
// kABBirthdayProperty is only guaranteed to be an NSDate; convert to NSCalendarDate
NSCalendarDate *birthday = [[currPerson valueForProperty:kABBirthdayProperty] dateWithCalendarFormat:nil timeZone:nil];
NSMutableArray *personDetails = [NSMutableArray arrayWithCapacity:2];
[personDetails addObject:(firstName ? firstName : @"")];
[personDetails addObject:(lastName ? lastName : @"")];
[personDetails addObject:[NSString stringWithFormat:@"%d/%d", [birthday monthOfYear], [birthday dayOfMonth]]];
[personDetails addObject:[currPerson uniqueId]];
[results addObject:personDetails];
}
return results;
}
@end</pre>
<!--googleoff: index -->
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<td><div style="width: 100%; height: 1px; background-color: #919699; margin-top: 5px; margin-bottom: 15px"></div></td>
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<div style="margin-bottom: 8px"><a href="http://developer.apple.com/feedback/?v=1&url=/samplecode/Birthdays/listing6.html%3Fid%3DDTS10003982-2.0&media=dvd" target=_new>Yes</a>: Tell us what works for you.</div>
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