//

 //  URLFormatter.m

 //  Murky

 //

 //  Copyright 2008 Jens Alfke. All rights reserved.

 //

 #import "MYURLFormatter.h"

 @implementation MYURLFormatter

 @synthesize allowedSchemes=_allowedSchemes;

 - (id) init

 {

     self = [super init];

     if (self != nil) {

         _allowedSchemes = [[NSArray alloc] initWithObjects: @"http",@"https",@"file",@"ssh",nil];

     }

     return self;

 }

 - (void) dealloc

 {

     [_allowedSchemes release];

     [super dealloc];

 }

 - (NSString *)stringForObjectValue:(id)obj

 {

     if( ! [obj isKindOfClass: [NSURL class]] )

         return @"";

     else if( [obj isFileURL] )

         return [obj path];

     else

         return [obj absoluteString];

 }

 - (BOOL)getObjectValue:(id *)obj forString:(NSString *)str errorDescription:(NSString **)outError

 {

     *obj = nil;

     NSString *error = nil;

     if( str.length==0 ) {

     } else if( [str hasPrefix: @"/"] ) {

         *obj = [NSURL fileURLWithPath: str];

         if( ! *obj )

             error = @"Invalid filesystem path";

     } else {

         NSURL *url = [NSURL URLWithString: str];

         NSString *scheme = [url scheme];

         if( url && scheme == nil ) {

             if( [str rangeOfString: @"."].length > 0 ) {

                 // Turn "foo.com/bar" into "http://foo.com/bar":

                 str = [@"http://" stringByAppendingString: str];

                 url = [NSURL URLWithString: str];

                 scheme = [url scheme];

             } else

                 url = nil;

         }

         if( ! url || ! [url path] || url.host.length==0 ) {

             error = @"Invalid URL";

         } else if( _allowedSchemes && ! [_allowedSchemes containsObject: scheme] ) {

             error = [@"URL protocol must be %@" stringByAppendingString:

                                     [_allowedSchemes componentsJoinedByString: @", "]];

         }

         *obj = url;

     }

     if( outError ) *outError = error;

     return (error==nil);

 }

 + (void) beginFilePickerFor: (NSTextField*)field

 {

     NSParameterAssert(field);

     NSOpenPanel *open = [NSOpenPanel openPanel];

     open.canChooseDirectories = YES;

     open.canChooseFiles = NO;

     open.requiredFileType = (id)kUTTypeDirectory;

     [open beginSheetForDirectory: nil

                             file: nil

                   modalForWindow: field.window

                    modalDelegate: self

                   didEndSelector: @selector(_filePickerDidEnd:returnCode:context:)

                      contextInfo: field];

 }

 + (void) beginNewFilePickerFor: (NSTextField*)field

 {

     NSParameterAssert(field);

     NSSavePanel *save = [NSSavePanel savePanel];

     [save beginSheetForDirectory: nil

                             file: nil

                   modalForWindow: field.window

                    modalDelegate: self

                   didEndSelector: @selector(_filePickerDidEnd:returnCode:context:)

                      contextInfo: field];

 }

 + (void) _filePickerDidEnd: (NSSavePanel*)save returnCode: (int)returnCode context: (void*)context

 {

     [save orderOut: self];

     if( returnCode == NSOKButton ) {

         NSTextField *field = context;

         field.objectValue = [NSURL fileURLWithPath: save.filename];

     }

 }

 @end