/*

     File: AppDelegate.m 

 Abstract: Main controller object as the NSApplicationDelegate. 

  Version: 1.1 

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 be used to endorse or promote products derived from the Apple Software 

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 MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION 

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 OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS. 

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 */

#import "AppDelegate.h"

#import "FileObject.h"

#import "CardBackgroundView.h"

#define kNibName @"FileCard"

#define kImageNibname @"ImageCard"

@interface AppDelegate ()

@property (assign) IBOutlet NSWindow *window;

@property (assign) IBOutlet NSPageController *pageController;

@property (assign) IBOutlet NSTableView *tableView;

- (IBAction)takeTransitionStyleFrom:(id)sender;

@end

#pragma mark -

@implementation AppDelegate

- (void)applicationDidFinishLaunching:(NSNotification *)aNotification {

    NSURL *dirURL = [[NSFileManager defaultManager] URLForDirectory:NSDocumentDirectory inDomain:NSUserDomainMask appropriateForURL:nil create:NO error:nil];

    // load all the file card URLs by enumerating through the user's Document folder

    NSMutableArray *data = [[NSMutableArray alloc] initWithCapacity:1];

    NSDirectoryEnumerator *itr = [[NSFileManager defaultManager] enumeratorAtURL:dirURL includingPropertiesForKeys:[NSArray arrayWithObjects:NSURLLocalizedNameKey, NSURLEffectiveIconKey, NSURLIsDirectoryKey, NSURLTypeIdentifierKey, nil] options:NSDirectoryEnumerationSkipsHiddenFiles | NSDirectoryEnumerationSkipsPackageDescendants | NSDirectoryEnumerationSkipsSubdirectoryDescendants errorHandler:nil];

    for (NSURL *url in itr) {

        NSNumber *isDirNum;

        [url getResourceValue:&isDirNum forKey:NSURLIsDirectoryKey error:nil];

        if ([isDirNum boolValue]) continue;

        [data addObject:[FileObject fileObjectWithURL:url]];

    }

    // set the first card in our list

    if ([data count] > 0) {

        [self.pageController setArrangedObjects:data];

        [self.tableView selectRowIndexes:[NSIndexSet indexSetWithIndex:0] byExtendingSelection:NO];

    }

}

- (BOOL)applicationShouldTerminateAfterLastWindowClosed:(NSApplication *)sender {

    return YES;

}

- (IBAction)takeTransitionStyleFrom:(id)sender {

    [self.pageController setTransitionStyle:[(NSButton*)sender selectedTag]];

}

- (void)tableViewSelectionDidChange:(NSNotification *)aNotification {

    NSInteger selectedIndex = [self.tableView selectedRow];

    if (selectedIndex >= 0 && selectedIndex != self.pageController.selectedIndex) {

        // The selection of the table view changed. We want to animate to the new selection.

        // However, since we are manually performing the animation,

        // -pageControllerDidEndLiveTransition: will not be called. We are required to

        // [self.pageController completeTransition] when the animation completes.

        //

        [NSAnimationContext runAnimationGroup:^(NSAnimationContext *context) {

            [[self.pageController animator] setSelectedIndex:selectedIndex];

        } completionHandler:^{

            [self.pageController completeTransition];

        }];

    }

}

// Required method for BookUI mode of NSPageController

// We have different cards for image files and everything else.

// Therefore, we have different identifiers

//

- (NSString *)pageController:(NSPageController *)pv identifierForObject:(id)object {

    FileObject *fileObj = (FileObject *)object;

    if (UTTypeConformsTo((__bridge CFStringRef)fileObj.utiType, kUTTypeImage)) {

        return kImageNibname;

    }

    return kNibName;

}

// Required method for BookUI mode of NSPageController

//

- (NSViewController *)pageController:(NSPageController *)pageController viewControllerForIdentifier:(NSString *)identifier {

    return [[NSViewController alloc] initWithNibName:identifier bundle:nil];

}

// Optional delegate method. This method is used to inset the card a little bit from it's parent view

//

- (NSRect)pageController:(NSPageController *)pageController frameForObject:(id)object {

    return NSInsetRect(pageController.view.bounds, 5, 5);

}

- (void)pageControllerDidEndLiveTransition:(NSPageController *)pageController {

    // Update the NSTableView selection

    [self.tableView selectRowIndexes:[NSIndexSet indexSetWithIndex:pageController.selectedIndex] byExtendingSelection:NO];

    // tell page controller to complete the transition and display the updated file card

    [pageController completeTransition];

}

@end