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ApplicationController.m
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ApplicationController.m
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//
// ApplicationController.m
//
// Created by Jim Correia on 3/4/11.
// Copyright 2011 Jim Correia. All rights reserved.
//
#import "ApplicationController.h"
#import "ScrollingInverterEventTap.h"
static NSString *const ShowStatusItemKey = @"ShowStatusItem";
@interface ApplicationController ()
@property (nonatomic) BOOL wasLaunchedAtLogin;
@property (nonatomic) BOOL showsStatusItem;
- (void)setShowsStatusItem:(BOOL)showsStatusItem updateUserDefaults:(BOOL)updateUserDefaults;
- (BOOL)hasLoginItemWithPath:(NSString *)path;
- (void)addLoginItemWithPath:(NSString *)path;
- (void)removeLoginItemWithPath:(NSString *)path;
- (LSSharedFileListRef)loginItemsFileList;
- (LSSharedFileListItemRef)copyLoginItemWithPath:(NSString *)path;
- (BOOL)_wasLaunchedAtLogin;
@end
@implementation ApplicationController
+ (void)initialize;
{
if (self != [ApplicationController class])
return;
NSDictionary *defaults = [NSDictionary dictionaryWithObjectsAndKeys:
[NSNumber numberWithBool:YES], ShowStatusItemKey,
nil
];
[[NSUserDefaults standardUserDefaults] registerDefaults:defaults];
}
- (id)init;
{
self = [super init];
if (!self)
return nil;
_eventTap = [[ScrollingInverterEventTap alloc] init];
_wasLaunchedAtLogin = [self _wasLaunchedAtLogin];
return self;
}
- (void)dealloc;
{
NSAssert(_eventTap == nil, @"Missing will terminate notification?");
[[NSStatusBar systemStatusBar] removeStatusItem:_statusItem];
[_statusItem release];
[_statusItemMenu release];
if (_loginItemsFileList != NULL) {
CFRelease(_loginItemsFileList);
}
[super dealloc];
}
- (void)awakeFromNib;
{
NSAssert(!_statusItem, @"");
NSAssert(_statusItemMenu, @"");
#if !DEBUG
// -toggleInvertScrollEvents: is really only useful in debug builds
NSInteger invertScrollEventsMenuItemIndex = [_statusItemMenu indexOfItemWithTarget:self andAction:@selector(toggleInvertScrollEvents:)];
[_statusItemMenu removeItemAtIndex:invertScrollEventsMenuItemIndex];
#endif
[_statusItem setImage:[NSImage imageNamed:@"StatusMenuIcon"]];
[_statusItem setAlternateImage:[NSImage imageNamed:@"StatusMenuIcon-Highlighted"]];
[_statusItem setHighlightMode:YES];
[_statusItem setMenu:_statusItemMenu];
}
@synthesize statusItemMenu = _statusItemMenu;
@synthesize wasLaunchedAtLogin = _wasLaunchedAtLogin;
- (BOOL)showsStatusItem;
{
return _showsStatusItem;
}
- (void)setShowsStatusItem:(BOOL)showsStatusItem;
{
[self setShowsStatusItem:showsStatusItem updateUserDefaults:YES];
}
- (void)setShowsStatusItem:(BOOL)showsStatusItem updateUserDefaults:(BOOL)updateUserDefaults;
{
if (_showsStatusItem != showsStatusItem) {
_showsStatusItem = showsStatusItem;
if (_showsStatusItem) {
NSAssert(!_statusItem, @"Expected _statusItem != nil");
_statusItem = [[[NSStatusBar systemStatusBar] statusItemWithLength:32] retain];
[_statusItem setImage:[NSImage imageNamed:@"StatusMenuIcon"]];
[_statusItem setAlternateImage:[NSImage imageNamed:@"StatusMenuIcon-Highlighted"]];
[_statusItem setHighlightMode:YES];
[_statusItem setMenu:_statusItemMenu];
} else {
NSAssert(_statusItem, @"Expected _statusItem == nil");
[[NSStatusBar systemStatusBar] removeStatusItem:_statusItem];
[_statusItem release];
_statusItem = nil;
}
}
if (updateUserDefaults) {
[[NSUserDefaults standardUserDefaults] setBool:showsStatusItem forKey:ShowStatusItemKey];
[[NSUserDefaults standardUserDefaults] synchronize];
}
}
- (void)applicationDidFinishLaunching:(NSNotification *)notification;
{
SInt32 response = 0;
OSStatus status = Gestalt(gestaltSystemVersion, &response);
if (status == noErr && response >= 0x1070) {
[_eventTap invalidate];
[_eventTap release];
_eventTap = nil;
[[NSApplication sharedApplication] activateIgnoringOtherApps:YES];
NSAlert *alert = [NSAlert alertWithMessageText:@"10.6 Required" defaultButton:@"Quit" alternateButton:nil otherButton:nil informativeTextWithFormat:@"%@", @"Scrollvetica requires Mac OS X 10.6. It does not run on later releases.", nil];
[alert runModal];
[[NSApplication sharedApplication] terminate:nil];
}
BOOL shouldShowStatusItem = (self.wasLaunchedAtLogin ? [[NSUserDefaults standardUserDefaults] boolForKey:ShowStatusItemKey] : YES);
[self setShowsStatusItem:shouldShowStatusItem updateUserDefaults:NO];
}
- (BOOL)applicationShouldHandleReopen:(NSApplication *)sender hasVisibleWindows:(BOOL)flag;
{
if (!self.showsStatusItem) {
// Review: Post alert stating that we are forcing the item to visible?
[self setShowsStatusItem:YES updateUserDefaults:YES];
}
return NO;
}
- (void)applicationWillTerminate:(NSNotification *)notification;
{
[_eventTap invalidate];
[_eventTap release];
_eventTap = nil;
}
- (BOOL)validateMenuItem:(NSMenuItem *)menuItem;
{
if ([menuItem action] == @selector(toggleLaunchAutomaticallyAtLogIn:)) {
BOOL isLoginItem = [self hasLoginItemWithPath:[[NSBundle mainBundle] bundlePath]];
[menuItem setState:isLoginItem];
}
if ([menuItem action] == @selector(toggleShowsStatusItem:)) {
NSInteger state = self.showsStatusItem;
if (state == NSOffState && !self.wasLaunchedAtLogin) {
state = NSMixedState;
}
[menuItem setState:state];
}
if ([menuItem action] == @selector(toggleInvertScrollEvents:)) {
[menuItem setState:[_eventTap isEnabled]];
}
return YES;
}
- (IBAction)statusItemShowAboutBox:(id)sender;
{
[[NSApplication sharedApplication] orderFrontStandardAboutPanel:sender];
[[NSApplication sharedApplication] activateIgnoringOtherApps:YES];
}
- (IBAction)toggleLaunchAutomaticallyAtLogIn:(id)sender;
{
BOOL isLoginItem = [self hasLoginItemWithPath:[[NSBundle mainBundle] bundlePath]];
if (isLoginItem) {
[self removeLoginItemWithPath:[[NSBundle mainBundle] bundlePath]];
} else {
[self addLoginItemWithPath:[[NSBundle mainBundle] bundlePath]];
}
}
- (IBAction)toggleInvertScrollEvents:(id)sender;
{
BOOL enabled = ![_eventTap isEnabled];
[_eventTap setEnabled:enabled];
}
- (IBAction)toggleShowsStatusItem:(id)sender;
{
NSString *message = NSLocalizedString(@"Hide status item?", @"alert title");
NSString *informativeText = NSLocalizedString(@"Choosing “Hide Status Item” will permanently hide the status item. Double-click Scrollvetica in the Finder to make the status item visible again.", @"alert body");
NSString *defaultButton = NSLocalizedString(@"Hide Status Item", @"button title");
NSString *cancelButton = NSLocalizedString(@"Cancel", @"button title");
NSAlert *alert = [NSAlert alertWithMessageText:message defaultButton:defaultButton alternateButton:cancelButton otherButton:nil informativeTextWithFormat:@"%@", informativeText];
[[NSApplication sharedApplication] activateIgnoringOtherApps:YES];
if ([alert runModal] == NSAlertDefaultReturn) {
BOOL showsStatusItem = !self.showsStatusItem;
[self setShowsStatusItem:showsStatusItem updateUserDefaults:YES];
}
}
#pragma mark -
#pragma mark Private
- (BOOL)hasLoginItemWithPath:(NSString *)path;
{
BOOL hasLoginItemWithPath = NO;
LSSharedFileListItemRef itemRef = [self copyLoginItemWithPath: path];
if (itemRef != NULL) {
hasLoginItemWithPath = YES;
CFRelease(itemRef);
}
return hasLoginItemWithPath;
}
- (void)addLoginItemWithPath:(NSString *)path;
{
LSSharedFileListItemRef itemRef = [self copyLoginItemWithPath: path];
if (itemRef == NULL) {
NSURL *fileURL = [NSURL fileURLWithPath: path];
itemRef = LSSharedFileListInsertItemURL([self loginItemsFileList], kLSSharedFileListItemLast, NULL, NULL, (CFURLRef)fileURL, NULL, NULL);
}
if (itemRef != NULL) {
CFRelease(itemRef);
}
}
- (void)removeLoginItemWithPath:(NSString *)path;
{
LSSharedFileListItemRef itemRef = [self copyLoginItemWithPath: path];
if (itemRef != NULL) {
verify_noerr(LSSharedFileListItemRemove([self loginItemsFileList], itemRef));
CFRelease(itemRef);
}
}
- (LSSharedFileListRef)loginItemsFileList;
{
if (!_loginItemsFileList) {
_loginItemsFileList = LSSharedFileListCreate(kCFAllocatorDefault, kLSSharedFileListSessionLoginItems, NULL);
}
return _loginItemsFileList;
}
- (LSSharedFileListItemRef)copyLoginItemWithPath:(NSString *)path;
{
LSSharedFileListItemRef foundItem = NULL;
UInt32 seedValue = 0;
NSArray *loginItemsArray = (NSArray *)LSSharedFileListCopySnapshot([self loginItemsFileList], &seedValue);
for (id item in loginItemsArray) {
LSSharedFileListItemRef itemRef = (LSSharedFileListItemRef)item;
NSURL *itemURL = nil;
OSStatus status = LSSharedFileListItemResolve(itemRef, 0, (CFURLRef *)&itemURL, NULL);
check_noerr(status);
if (status == noErr && [path isEqualToString: [itemURL path]]) {
foundItem = itemRef;
CFRetain(foundItem);
break;
}
}
CFRelease((CFArrayRef)loginItemsArray);
return foundItem;
}
- (BOOL)_wasLaunchedAtLogin;
{
OSType processLauncher = 0;
OSStatus status = noErr;
ProcessSerialNumber psn;
ProcessInfoRec processInfo;
status = GetCurrentProcess(&psn);
require_noerr(status, EXIT);
memset(&processInfo, 0, sizeof(processInfo));
processInfo.processInfoLength = sizeof(processInfo);
status = GetProcessInformation(&psn, &processInfo);
require_noerr(status, EXIT);
status = GetProcessInformation(&psn, &processInfo);
require_noerr(status, EXIT);
psn = processInfo.processLauncher;
status = GetProcessInformation(&psn, &processInfo);
require_noerr(status, EXIT);
memset(&processInfo, 0, sizeof(processInfo));
processInfo.processInfoLength = sizeof(processInfo);
status = GetProcessInformation(&psn, &processInfo);
require_noerr(status, EXIT);
processLauncher = processInfo.processSignature;
EXIT:
return (processLauncher == 'lgnw');
}
@end