/*

     File: MyWindowController.m 

 Abstract: Sample's main NSWindowController. 

  Version: 1.2 

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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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 */

#import "MyWindowController.h"

#import "MyBundle.h"

@implementation MyWindowController

// all of our target built bundles for this sample will start with:

NSString* const kPrefixBundleIDStr = @"com.yourcompany.bundleexample";

NSString* const kSearchStr = @"Searching for bundles...";

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

//  handleActivate:

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

- (void)handleActivate:(NSNotification *)notification

{

    NSWindowController *controller = [[notification object] windowController];

    if ([controller isKindOfClass:[MyWindowController class]]) 

    {

        // our main window is now active, check if any bundle windows are still open

        BOOL hasOpenBundle = NO;

        // one of our bundle windows is closing, update the our 'hasOpenWindows' flag

        for (NSDictionary *bundleDict in [arrayController arrangedObjects])

        {

            MyBundle *curBundle = [bundleDict objectForKey:@"bundleInstance"];

            if ([curBundle isOpen])

            {

                hasOpenBundle = YES;

                break;

            }

        }

        if (!hasOpenBundle)

        {

            // no more bundle windows are open

            [self willChangeValueForKey:@"hasOpenWindows"];

            hasOpenWindows = NO;

            [self didChangeValueForKey:@"hasOpenWindows"];

        }

    }

}

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

//  handleClose:notification

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

- (void)handleClose:(NSNotification *)notification

{

    NSWindowController *controller = [[notification object] windowController];

    if ([controller isKindOfClass:[MyWindowController class]]) 

    {

        // we are closing our main application window, so close all the bundle windows      

        for (NSDictionary *bundleDict in [arrayController arrangedObjects])

        {

            MyBundle *curBundle = [bundleDict objectForKey:@"bundleInstance"];

            [curBundle close];

        }

    }

    else

    {

        // one of our bundle windows is closing

        //...

    }

}

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

//  init

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

- (id)init

{

    self = [super init];

    if (self)

    {

        [[NSNotificationCenter defaultCenter] addObserver:self

                                                 selector:@selector(handleClose:)

                                                     name:NSWindowWillCloseNotification

                                                   object:nil];

        [[NSNotificationCenter defaultCenter] addObserver:self

                                                 selector:@selector(handleActivate:)

                                                     name:NSWindowDidBecomeKeyNotification

                                                object:nil];

    }

    return self;

}

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

//  dealloc

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

- (void)dealloc

{

    [super dealloc];

}

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

//  searchDone:bundleInstanceList

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

- (void)searchDone:(NSMutableArray *)bundleInstanceList

{

    [searchString setStringValue:@""];

    [searchProgress setHidden:YES];

    [searchProgress stopAnimation:self];

    for (MyBundle *curBundle in bundleInstanceList)

    {

        // add all the discovered bundles to our array controller/table view

        NSMutableDictionary *bundleEntryDict = [NSMutableDictionary dictionaryWithObjectsAndKeys:

                                                    [curBundle bundleTitle], @"name",

                                                    [curBundle bundleDescription], @"description",

                                                    [curBundle bundleIcon], @"icon",

                                                    curBundle, @"bundleInstance",

                                                    nil];

        [arrayController addObject:bundleEntryDict];

    }

}

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

//  startSearch:inObject

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

- (void)startSearch:(id)inObject

{

    NSMutableArray *bundleInstanceList = [[NSMutableArray alloc] init];

    NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];

    NSMutableArray *bundlePaths = [NSMutableArray array];

    // our built bundles are found inside the app's "PlugIns" folder -

    NSMutableArray *bundleSearchPaths = [NSMutableArray array];

    NSString *folderPath = [[NSBundle mainBundle] builtInPlugInsPath];

    [bundleSearchPaths addObject: folderPath];

    // NOTE: if you wish to search other locations for bundles

    //          (i.e. $(HOME)/Library/Application Support/BundleLoader, you can use the following code:

#if 0

    NSArray *librarySearchPaths = NSSearchPathForDirectoriesInDomains(NSApplicationSupportDirectory, NSUserDomainMask, YES);

    NSEnumerator *searchPathEnum = [librarySearchPaths objectEnumerator];

    while (currPath = [searchPathEnum nextObject])

    {

       [bundleSearchPaths addObject: currPath];

    }

#endif  

    for (NSString *currPath in bundleSearchPaths)

    {

        NSDirectoryEnumerator *bundleEnum;

        NSString *currBundlePath;

        bundleEnum = [[NSFileManager defaultManager] enumeratorAtPath:currPath];

        if (bundleEnum)

        {

            while ((currBundlePath = [bundleEnum nextObject]))

            {

                if ([[currBundlePath pathExtension] isEqualToString:@"bundle"])

                {

                    // we found a bundle, add it to the list

                    [bundlePaths addObject:[currPath stringByAppendingPathComponent:currBundlePath]];

                }

            }

        }

    }

    // now that we have all bundle paths, start finding the ones we really want to load -

    NSRange searchRange = NSMakeRange(0, [kPrefixBundleIDStr length]);

    for (NSString *currPath in bundlePaths)

    {

        NSBundle *currBundle = [NSBundle bundleWithPath:currPath];

        if (currBundle)

        {

            NSString *bundleIDStr = [currBundle bundleIdentifier];

            // check the bundle ID to see if it starts with our know prefix string (kPrefixBundleIDStr)

            // we want to only load the bundles we care about:

            //

            if ([bundleIDStr compare:kPrefixBundleIDStr options:NSLiteralSearch range:searchRange] == NSOrderedSame)

            {

                // load and startup our bundle

                //

                // note: principleClass method actually loads the bundle for us,

                // or we can call [currBundle load] directly.

                //

                Class currPrincipalClass = [currBundle principalClass];

                if (currPrincipalClass)

                {

                    id currInstance = [[currPrincipalClass alloc] init];

                    if (currInstance)

                    {

                        [bundleInstanceList addObject:[currInstance autorelease]];

                    }

                }

            }

        }

    }

    // we are done, update the UI on the main thread

    [self performSelectorOnMainThread:@selector(searchDone:)

                           withObject:bundleInstanceList    // pass back our list of NSBundle instance list

                        waitUntilDone:YES];                 // don't block

    [bundleInstanceList release];

    [pool release];

}

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

//  awakeFromNib

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

- (void)awakeFromNib

{

    [searchString setStringValue:kSearchStr];

    [searchProgress setHidden:NO];

    [searchProgress startAnimation:self];

    // start looking for our bundles -

    // we detach this search operation on a secondary thread; just in case,

    // this is to illustrate how this can be done without blocking the UI.

    //

    // You may choose to install your bundles elsewhere along with dozens of others

    // that might not be yours to run:

    //

    // So our target built bundles will be found in:

    //      $(HOME)/Library/Application Support/BundleLoader"

    [NSThread detachNewThreadSelector:@selector(startSearch:)

                             toTarget:self      // we are the target

                           withObject:nil];

    [[self window] setFrameAutosaveName:@"MainWindow"]; // remember our window size and position next time

}

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

//  applicationShouldTerminateAfterLastWindowClosed:sender

//

//  NSApplication delegate method placed here so the sample conveniently quits

//  after we close the window.

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

- (BOOL)applicationShouldTerminateAfterLastWindowClosed:(NSApplication *)sender

{

    return YES;

}

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

//  openBundle:bundleDict

//

//  Searches our internal list of bundle instances based on the NSDictionary

//  object fetched from our array controller.

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

- (void)openBundle:(NSDictionary *)bundleDict

{

    MyBundle *bundleInstance = [bundleDict objectForKey:@"bundleInstance"];

    if (bundleInstance && [bundleInstance open])        // open the windows for this bundle

    {

        [self willChangeValueForKey:@"hasOpenWindows"];

        hasOpenWindows = YES;

        [self didChangeValueForKey:@"hasOpenWindows"];

    }

}

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

//  inspect:selectedObjects

//

//  User double-clicked an item in the table, find the bundle instance in our list based

//  on the selected in our arrayController.

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

- (IBAction)inspect:(NSArray *)selectedObjects

{

    if ([selectedObjects count] > 0)

    {

        // find the bundle instance from our internal list; if we find a match, open it

        NSDictionary *objectDict = [selectedObjects objectAtIndex:0];

        if (objectDict)

        {

            [self openBundle:objectDict];

        }

    }

}

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

//  openAction:sender

//

//  User clicked the "Open" button, find the bundle instance in our list based

//  on the selected in our arrayController.

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

- (IBAction)openAction:(id)sender

{

    // find the bundle instance from our internal list; if we find a match, open it

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

    {

        NSDictionary *objectDict = [[arrayController selectedObjects] objectAtIndex:0];

        if (objectDict)

        {

            [self openBundle:objectDict];

        }

    }

}

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

//  closeAllAction:sender

//

//  User clicked the "Close All" button, close all opened bundle windows.

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

- (IBAction)closeAllAction:(id)sender

{

    for (NSDictionary *bundleDict in [arrayController arrangedObjects])

    {

        MyBundle *curBundle = [bundleDict objectForKey:@"bundleInstance"];

        if ([curBundle isOpen])

            [curBundle close];

    }

    [self willChangeValueForKey:@"hasOpenWindows"];

    hasOpenWindows = NO;

    [self didChangeValueForKey:@"hasOpenWindows"];

}

@end