darling-TextEdit/Controller.m

/*
     File: Controller.m
 Abstract: Central controller object for TextEdit, for implementing app functionality (services) as well
 as few tidbits for which there are no dedicated controllers.
 
  Version: 1.9
 
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 The Apple Software is provided by Apple on an "AS IS" basis.  APPLE
 MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
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 IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL
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 */

#import <Cocoa/Cocoa.h>
#import "Controller.h"
#import "DocumentController.h"
#import "Document.h"
#import "EncodingManager.h"
#import "TextEditDefaultsKeys.h"
#import "TextEditErrors.h"
#import "TextEditMisc.h"

static NSDictionary *defaultValues() {
    static NSDictionary *dict = nil;
    if (!dict) {
        dict = [[NSDictionary alloc] initWithObjectsAndKeys:
                [NSNumber numberWithInteger:30], AutosavingDelay,
                [NSNumber numberWithBool:NO], NumberPagesWhenPrinting,
                [NSNumber numberWithBool:YES], WrapToFitWhenPrinting,
                [NSNumber numberWithBool:YES], RichText, 
                [NSNumber numberWithBool:NO], ShowPageBreaks,
		[NSNumber numberWithBool:NO], OpenPanelFollowsMainWindow,
		[NSNumber numberWithBool:YES], AddExtensionToNewPlainTextFiles,
                [NSNumber numberWithInteger:90], WindowWidth, 
                [NSNumber numberWithInteger:30], WindowHeight, 
                [NSNumber numberWithUnsignedInteger:NoStringEncoding], PlainTextEncodingForRead,
                [NSNumber numberWithUnsignedInteger:NoStringEncoding], PlainTextEncodingForWrite,
		[NSNumber numberWithInteger:8], TabWidth,
		[NSNumber numberWithInteger:50000], ForegroundLayoutToIndex,       
                [NSNumber numberWithBool:NO], IgnoreRichText,
		[NSNumber numberWithBool:NO], IgnoreHTML,
                [NSNumber numberWithBool:YES], CheckSpellingAsYouType,
                [NSNumber numberWithBool:NO], CheckGrammarWithSpelling,
                [NSNumber numberWithBool:[NSSpellChecker isAutomaticSpellingCorrectionEnabled]], CorrectSpellingAutomatically,
                [NSNumber numberWithBool:YES], ShowRuler,
                [NSNumber numberWithBool:YES], SmartCopyPaste,
                [NSNumber numberWithBool:NO], SmartQuotes,
                [NSNumber numberWithBool:NO], SmartDashes,
                [NSNumber numberWithBool:NO], SmartLinks,
                [NSNumber numberWithBool:NO], DataDetectors,
                [NSNumber numberWithBool:[NSSpellChecker isAutomaticTextReplacementEnabled]], TextReplacement,
                [NSNumber numberWithBool:NO], SubstitutionsEnabledInRichTextOnly,
                @"", AuthorProperty,
                @"", CompanyProperty,
                @"", CopyrightProperty,
                [NSNumber numberWithBool:NO], UseXHTMLDocType,
                [NSNumber numberWithBool:NO], UseTransitionalDocType,
                [NSNumber numberWithBool:YES], UseEmbeddedCSS,
                [NSNumber numberWithBool:NO], UseInlineCSS,
                [NSNumber numberWithUnsignedInteger:NSUTF8StringEncoding], HTMLEncoding,
                [NSNumber numberWithBool:YES], PreserveWhitespace,
                [NSNumber numberWithBool:NO], UseScreenFonts,
		nil];
    }
    return dict;
}

@implementation Controller

@synthesize preferencesController, propertiesController, lineController;

+ (void)initialize {
    // Set up default values for preferences managed by NSUserDefaultsController
    [[NSUserDefaults standardUserDefaults] registerDefaults:defaultValues()];
    [[NSUserDefaultsController sharedUserDefaultsController] setInitialValues:defaultValues()];
#if __LP64__
    // At some point during 32-to-64 bit transition of TextEdit, some versions erroneously wrote out the value of -1 to defaults. These values cause grief throughout the program under 64-bit, so it's best to clean them out from defaults permanently. Note that it's often considered bad form to write defaults while launching; however, here we do this only once, ever.
    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
    if ([[defaults objectForKey:PlainTextEncodingForRead] unsignedIntegerValue] == 0xFFFFFFFFFFFFFFFFULL) [defaults removeObjectForKey:PlainTextEncodingForRead];
    if ([[defaults objectForKey:PlainTextEncodingForWrite] unsignedIntegerValue] == 0xFFFFFFFFFFFFFFFFULL) [defaults removeObjectForKey:PlainTextEncodingForWrite];
#endif
}

- (void)applicationDidFinishLaunching:(NSNotification *)notification {
    // To get service requests to go to the controller...
    [NSApp setServicesProvider:self];
}

/*** Services support ***/

- (void)openFile:(NSPasteboard *)pboard userData:(NSString *)data error:(NSString **)error {
    NSString *filename, *origFilename;
    NSURL *url = nil;
    NSError *err = nil;
    NSString *type = [pboard availableTypeFromArray:[NSArray arrayWithObject:(NSString *)kUTTypePlainText]];

    if (type && (filename = origFilename = [pboard stringForType:type])) {
        BOOL success = NO;
        if ([filename isAbsolutePath] && (url = [NSURL fileURLWithPath:filename])) {	// If seems to be a valid absolute path, first try using it as-is
	    success = [(DocumentController *)[NSDocumentController sharedDocumentController] openDocumentWithContentsOfURL:url display:YES error:&err] != nil;
        }
        if (!success) {	// Check to see if the user mistakenly included a carriage return or more at the end of the file name...
            filename = [[filename substringWithRange:[filename lineRangeForRange:NSMakeRange(0, 0)]] stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
            if ([filename hasPrefix:@"~"]) filename = [filename stringByExpandingTildeInPath];	// Convert the "~username" case
	    if (![origFilename isEqual:filename] && [filename isAbsolutePath]) {
                url = [NSURL fileURLWithPath:filename];
		success = [(DocumentController *)[NSDocumentController sharedDocumentController] openDocumentWithContentsOfURL:url display:YES error:&err] != nil;
	    }
        }
        // Given that this is a one-way service (no return), we need to put up the error panel ourselves and we do not set *error.
        if (!success) {
	    if (!err) {
		err = [NSError errorWithDomain:NSCocoaErrorDomain code:NSFileReadInvalidFileNameError userInfo:[NSDictionary dictionaryWithObjectsAndKeys:truncatedString(filename, PATH_MAX+10), NSFilePathErrorKey, nil]];
	    }
	    [[NSAlert alertWithError:err] runModal];
        }
    }
}

/* The following, apart from providing the service through the Services menu, allows the user to drop snippets of text on the TextEdit icon and have it open as a new document. */
- (void)openSelection:(NSPasteboard *)pboard userData:(NSString *)data error:(NSString **)error {
    NSError *err = nil;
    Document *document = [(DocumentController *)[NSDocumentController sharedDocumentController] openDocumentWithContentsOfPasteboard:pboard display:YES error:&err];
    
    if (!document) {
	[[NSAlert alertWithError:err] runModal];
        // No need to report an error string...
    }
}

@end