/*

     File: BrowserWindowController.m

 Abstract: Window Controller Class for CocoaSlides Browser Windows

  Version: 1.5

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 */

#import "BrowserWindowController.h"

#import "Asset.h"

#import "AssetCollection.h"

#import "AssetCollectionView.h"

@implementation BrowserWindowController

- (id)initWithPath:(NSString *)newPath {

    self = [super initWithWindowNibName:@"BrowserWindow"];

    if (self) {

        path = [newPath copy];

        sortKey = [@"filename" copy];

        sortsAscending = YES;

    }

    return self;

}

- (void)dealloc {

    [sortKey release];

    [assetCollection release];

    [path release];

    [super dealloc];

}

- (void)updateSortDescriptors {

    // Build a new NSSortDescriptor that we can use to order our image assets, according to the current "sortKey" and "sortsAscending" setting.

    NSString *effectiveSortKey = [[NSString alloc] initWithFormat:@"asset.%@", [self sortKey]];

    NSSortDescriptor *sortDescriptor = nil;

    if ([[self sortKey] isEqualToString:@"filename"]) {

        sortDescriptor = [[NSSortDescriptor alloc] initWithKey:effectiveSortKey ascending:[self sortsAscending] selector:@selector(caseInsensitiveCompare:)];

    } else {

        sortDescriptor = [[NSSortDescriptor alloc] initWithKey:effectiveSortKey ascending:[self sortsAscending]];

    }

    // Tell our AssetCollectionView to use the new sort descriptor.

    [assetCollectionView setSortDescriptors:[NSArray arrayWithObject:sortDescriptor]];

    [sortDescriptor release];

    [effectiveSortKey release];

}

- (NSString *)sortKey {

    return sortKey;

}

- (void)setSortKey:(NSString *)newSortKey {

    if (sortKey != newSortKey) {

        id old = sortKey;

        sortKey = [newSortKey copy];

        [old release];

        [self updateSortDescriptors];

    }

}

- (BOOL)sortsAscending {

    return sortsAscending;

}

- (void)setSortsAscending:(BOOL)flag {

    if (sortsAscending != flag) {

        sortsAscending = flag;

        [self updateSortDescriptors];

    }

}

- (void)windowDidLoad {

    // Ask for assetCollectionView and all its descendants to be rendered and animated

    // using layers.  Note that this is the only part of this code sample that refers in

    // any way to the existence of layers. -- AppKit takes care of the implications of this

    // automatically!  Interface Builder 3.0 even allows the per-view "wantsLayer" flag to

    // be set in the .nib, which would allow removing these two lines of code.

    //

    [assetCollectionView setWantsLayer:YES];

    // Create an AssetCollection for browsing our assigned path.

    assetCollection = [[AssetCollection alloc] initWithRootURL:[NSURL fileURLWithPath:path]];

    // Set the window's title to the name of the folder we're browsing.

    [[assetCollectionView window] setTitle:[path lastPathComponent]];

    // Hook things up and start loading thumbnails.

    [self updateSortDescriptors];

    [assetCollectionView setAssetCollection:assetCollection];

    [assetCollection startRefresh];

}

- (void)windowDidBecomeKey:(NSNotification *)notification {

    // Rescan for filesystem changes each time window becomes key again.

    [assetCollection startRefresh];

}

- (void)refresh:(id)sender {

    // Ask our assetCollection to check for new, changed, and removed asset files.  Our assetCollectionView will be automatically notified of any changes to the assetCollection via KVO.

    [assetCollection startRefresh];

}

- (IBAction)showSlideshowWindow:(id)sender {

    [slideshowWindowController setAssetCollection:assetCollection];

    [slideshowWindowController showWindow:self];

}

@end