/*

     File: MyWindowController.m 

 Abstract: Tthis sample's primary NSWindowController. 

  Version: 1.1 

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 */

#import "MyWindowController.h"

@implementation MyWindowController

@synthesize currentPerson;

// the keys to our array controller to be displayed in the table view,

#define KEY_LAST    @"lastName"

#define KEY_FIRST   @"firstName"

// -------------------------------------------------------------------------------

//  awakeFromNib:

// -------------------------------------------------------------------------------

- (void)awakeFromNib

{

    NSBundle *bundle = [NSBundle mainBundle];

    NSString *path = [bundle pathForResource: @"people" ofType: @"dict"];

    NSArray *listFromFile = [NSArray arrayWithContentsOfFile: path];

    [tableView setSortDescriptors:[NSArray arrayWithObjects:[[[NSSortDescriptor alloc] initWithKey:@"lastName" ascending:YES] autorelease],

                                                                 [[[NSSortDescriptor alloc] initWithKey:@"firstName" ascending:YES] autorelease],

                                                                 nil]];

    [peopleList addObserver:self forKeyPath:@"selectionIndexes" options:NSKeyValueObservingOptionNew context:nil];

    // read the list of PEOPLE from disk in 'people.dict'

    if (listFromFile != nil)

    {

        [peopleList addObjects:listFromFile];

    }

    // select the first person in the table

    [peopleList setSelectionIndex:0];

    // bind the "currentPerson" dictionary to our dictionary controller

    [dictController bind:NSContentDictionaryBinding toObject:self withKeyPath:@"currentPerson" options:nil];

    // another way is:

    // [dictController setContent:entry];

    // but that would tie the content to the current dictionary instance

    // binding the dictionary means that if we replace the dictionary itself with a new one

    // the content of the dictionary controller will be updated as well

    // load 2 localized key strings for display in the table to the right,

    // note: we could use localized keys for the "entire" dictionary but we are

    // illustrating here to be selective with only two keys

    //

    NSString *firstNameLocalizedKey = NSLocalizedString(@"firstName", @"");

    NSString *lastNameLocalizedKey = NSLocalizedString(@"lastName", @"");

    [dictController setLocalizedKeyDictionary:

        [NSDictionary dictionaryWithObjectsAndKeys: firstNameLocalizedKey, KEY_FIRST,

                                                    lastNameLocalizedKey, KEY_LAST,

                                                    nil]];

    // note: each person has one "excluded key" called "id",

    // which we could use as private data - not to be displayed to the user.

}

// -------------------------------------------------------------------------------

//  dealloc:

// -------------------------------------------------------------------------------

- (void)dealloc

{

    self.currentPerson = nil;   // causes a release

    [super dealloc];

}

// -------------------------------------------------------------------------------

//  sortDesc:

// -------------------------------------------------------------------------------

- (NSArray *)sortDesc

{

    return [tableView sortDescriptors];

}

// -------------------------------------------------------------------------------

//  observeValueForKeyPath:keyPath:object:change:context

// -------------------------------------------------------------------------------

- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context

{

    // has the array controller's "selectionIndexes" binding changed?

    if (object == peopleList)

    {

        if ([[object selectedObjects] count] > 0)

        {

            // update our current person and reflect the change to our dictionary controller

            [self setCurrentPerson: [[object selectedObjects] objectAtIndex:0]];

            [dictController bind:NSContentDictionaryBinding toObject:self withKeyPath:@"currentPerson" options:nil];

        }

    }

    else

    {

        [super observeValueForKeyPath:keyPath ofObject:object change:change context:context];

    }

}

@end