/*

     File: AssetBrowserController.h

 Abstract: UIViewController allowing asset selection.

  Version: 1.3

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 */

#import <UIKit/UIViewController.h>

#import <UIKit/UITableView.h>

#import "AssetBrowserSource.h"

@protocol AssetBrowserControllerDelegate;

@class UITabBarController, UINavigationController;

@interface AssetBrowserController : UITableViewController

{

@private

    NSArray *assetSources;

    NSMutableArray *activeAssetSources;

    AssetBrowserSourceType browserSourceType;

    BOOL singleSourceTypeMode;

    BOOL haveBuiltSourceLibraries;

    id <AssetBrowserControllerDelegate> __weak delegate;

    BOOL thumbnailAndTitleGenerationIsRunning;

    BOOL thumbnailAndTitleGenerationEnabled;

    CGFloat lastTableViewYContentOffset;

    BOOL lastTableViewScrollDirection;

    CGFloat thumbnailScale;

    BOOL isModal;

    UIStatusBarStyle lastStatusBarStyle;

}

/* 

 AssetBrowserController is a UITableViewController subclass which can be used in a number of ways.

 In particular you can use it as a modal picker style view controller, or as a single view controller

 in a navigation heirarchy. When displaying an AssetBrowserController modally, make the AssetBrowserController

 the root of a UINavigationController then present that controller modally.

 An AssetBrowserController can show one or multiple sources. When using AssetBrowserController

 with UITabBarContoller you may wish to use one AssetBrowserController/source per tab.

 On iPad a picker style AssetBrowserController works nicely inside a UIPopover. Some convenience

 methods are provided below.

*/

- (id)initWithSourceType:(AssetBrowserSourceType)sourceType modalPresentation:(BOOL)modalPresentation;

- (void)clearSelection; // Used to clear the selection without dismissing the asset browser;

@property (nonatomic, weak) id<AssetBrowserControllerDelegate> delegate;

@end

@protocol AssetBrowserControllerDelegate <NSObject>

@optional

/* It is the delegate's responsibility to dismiss the view controller if it has been presented modally.

 If the view controller is part of a navigation heirarchy the client can push a new view controller

 in response to an asset being selected. */

- (void)assetBrowser:(AssetBrowserController *)assetBrowser didChooseItem:(AssetBrowserItem *)assetBrowserItem;

- (void)assetBrowserDidCancel:(AssetBrowserController *)assetBrowser;

@end

@interface UINavigationController (AssetBrowserConvenienceMethods)

// Has a navigation bar and a cancel button. Present the navigation controller modally.

+ (UINavigationController*)modalAssetBrowserControllerWithSourceType:(AssetBrowserSourceType)sourceType delegate:(id <AssetBrowserControllerDelegate>)delegate;

@end

@interface UITabBarController (AssetBrowserConvenienceMethods)

// Configured with one source per tab. Present the tab bar controller modally.

+ (UITabBarController*)tabbedModalAssetBrowserControllerWithSourceType:(AssetBrowserSourceType)sourceType delegate:(id <AssetBrowserControllerDelegate>)delegate;

@end