diff -r 000000000000 -r 256370e8935a MYURLFormatter.m
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/MYURLFormatter.m	Sun May 03 10:13:31 2009 -0700
@@ -0,0 +1,114 @@
+//
+//  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