//

 //  GrowlSafariLoader.m

 //  GrowlSafari

 //

 //  Created by Peter Hosey on 2009-06-14.

 //  Copyright 2009 Peter Hosey. All rights reserved.

 //

 #import "GrowlSafariLoader.h"

 #import "InterestingBundleIdentifiers.h"

 @interface GrowlSafariLoader ()

 - (void) workspaceDidLaunchApplication:(NSNotification *)notification;

 @end

 @implementation GrowlSafariLoader

 - (id) init {

 	if((self = [super init])) {

 		workspace = [[NSWorkspace sharedWorkspace] retain];

 		NSNotificationCenter *nc = [workspace notificationCenter];

 		NSLog(@"Adding %@ as an observer on %@ for %@ with object %@", self, nc, NSWorkspaceDidLaunchApplicationNotification, workspace);

 		[nc addObserver:self

 			   selector:@selector(workspaceDidLaunchApplication:)

 				   name:NSWorkspaceDidLaunchApplicationNotification

 				 object:nil];

 	}

 	return self;

 }

 - (void) dealloc {

 	NSNotificationCenter *nc = [workspace notificationCenter];

 	[nc removeObserver:self

 				  name:NSWorkspaceDidLaunchApplicationNotification

 				object:workspace];

 	[workspace release];

 	[super dealloc];

 }

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

 	//Scan for running Safari instances, and send ourselves messages as if NSWorkspace had posted notifications about them.

 	NSEnumerator *appsEnum = [[workspace launchedApplications] objectEnumerator];

 	NSDictionary *appDict;

 	while ((appDict = [appsEnum nextObject])) {

 		NSNotification *notification = [NSNotification notificationWithName:NSWorkspaceDidLaunchApplicationNotification object:workspace userInfo:appDict];

 		[self workspaceDidLaunchApplication:notification];

 	}

 }

 - (BOOL) isOnSnowLeopardOrLater {

 	OSStatus err;

 	SInt32 majorOSVersion = 10, minorOSVersion = 0;

 	err = Gestalt(gestaltSystemVersionMajor, &majorOSVersion);

 	NSAssert2(err == noErr, @"Could not get operating-system major version number: %li/%s", (long)err, GetMacOSStatusCommentString(err));

 	err = Gestalt(gestaltSystemVersionMinor, &minorOSVersion);

 	NSAssert2(err == noErr, @"Could not get operating-system minor version number: %li/%s", (long)err, GetMacOSStatusCommentString(err));

 	return (majorOSVersion == 10 && minorOSVersion >= 6) || (majorOSVersion > 10);

 }

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

 	NSDictionary *launchedProcessInfo = [notification userInfo];

 	NSString *bundleID = [launchedProcessInfo objectForKey:@"NSApplicationBundleIdentifier"];

 	if (bundleID && (([bundleID caseInsensitiveCompare:SAFARI_BUNDLE_ID] == NSOrderedSame) || ([bundleID caseInsensitiveCompare:WEBKIT_LAUNCHER_BUNDLE_ID] == NSOrderedSame))) {

 		NSString *bundlePath = [[NSBundle bundleForClass:[self class]] pathForResource:@"GrowlSafari" ofType:@"bundle"];

 		if (bundlePath) {

 			NSNumber *PIDNum = [launchedProcessInfo objectForKey:@"NSApplicationProcessIdentifier"];

 			pid_t pid = [PIDNum intValue];

 			NSArray *arguments = [NSArray arrayWithObjects:

 				@"-arch",

 #if defined(__i386__)

 				@"i386",

 #elif defined(__x86_64__)

 				//Safari did not exist in x86_64 before Snow Leopard, so, on older versions of Mac OS X, run the helper as i386.

 				[self isOnSnowLeopardOrLater] ? @"x86_64" : @"i386",

 #elif defined(__ppc__)

 				@"ppc",

 #else

 #error Unsupported architecture

 #endif

 				[[NSBundle bundleForClass:[self class]] pathForAuxiliaryExecutable:@"GrowlSafariHelper"],

 				[NSString stringWithFormat:@"%d", pid],

 				nil];

 			NSTask *task = [[[NSTask alloc] init] autorelease];

 			[task setLaunchPath:@"/usr/bin/arch"];

 			[task setArguments:arguments];

 			[task launch];

 		}

 	}

 }

 @end