libs-gsweb/GSWeb/GSWTextField.m

/** GSWTextField.m - <title>GSWeb: Class GSWTextField</title>

   Copyright (C) 1999-2004 Free Software Foundation, Inc.
   
   Written by:	Manuel Guesdon <mguesdon@orange-concept.com>
   Date: 	Jan 1999
   
   $Revision$
   $Date$

   This file is part of the GNUstep Web Library.
   
   <license>
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public
   License as published by the Free Software Foundation; either
   version 2 of the License, or (at your option) any later version.
   
   This library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Library General Public License for more details.
   
   You should have received a copy of the GNU Library General Public
   License along with this library; if not, write to the Free
   Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
   </license>
**/

#include "config.h"

RCS_ID("$Id$")

#include "GSWeb.h"

//====================================================================
@implementation GSWTextField

//--------------------------------------------------------------------
-(id)initWithName:(NSString*)aName
     associations:(NSDictionary*)associations
         template:(GSWElement*)template
{
  self = [super initWithName:@"input" associations:associations template: template];
  if (!self) {
    return nil;
  }

  if ((_value == nil) || (![_value isValueSettable])) {
    [NSException raise:NSInvalidArgumentException
                format:@"%s: 'value' attribute not present or is a constant",
                            __PRETTY_FUNCTION__];
  }
  ASSIGN(_formatter, [_associations objectForKey: formatter__Key]);
  if (_formatter != nil) {
    [_associations removeObjectForKey: formatter__Key];
  }
  ASSIGN(_dateFormat, [_associations objectForKey: dateFormat__Key]);
  if (_dateFormat != nil) {
    [_associations removeObjectForKey: dateFormat__Key];
  }
  ASSIGN(_numberFormat, [_associations objectForKey: numberFormat__Key]);
  if (_numberFormat != nil) {
    [_associations removeObjectForKey: numberFormat__Key];
  }
  ASSIGN(_useDecimalNumber, [_associations objectForKey: useDecimalNumber__Key]);
  if (_useDecimalNumber != nil) {
    [_associations removeObjectForKey: useDecimalNumber__Key];
  }

  if ((_dateFormat != nil) && (_numberFormat != nil)) {
     [NSException raise:NSInvalidArgumentException
             format:@"%s: Cannot have 'dateFormat' and 'numberFormat' attributes at the same time.",
                                  __PRETTY_FUNCTION__];
  
  }
  return self;
}

//--------------------------------------------------------------------
-(void)dealloc
{
  DESTROY(_dateFormat);
  DESTROY(_numberFormat);
  DESTROY(_useDecimalNumber);
  DESTROY(_formatter);
  [super dealloc];
};

- (NSString*) type
{
  return @"text";
}


// TODO: put that into a superclass, bulid a cache?

-(NSFormatter*)formatterForComponent:(GSWComponent*)component
{
  //OK
  id formatValue = nil;
  id formatter = nil;
  if (_dateFormat)
    {
      formatValue=[_dateFormat valueInComponent:component];
      if (formatValue)
        formatter=[[[NSDateFormatter alloc]initWithDateFormat:formatValue
                                           allowNaturalLanguage:YES]autorelease];
    }
  else if (_numberFormat)
    {
      formatValue=[_numberFormat valueInComponent:component];
      if (formatValue)
        {
          //TODO
          /*
            formatter=[[NSNumberFormatter new]autorelease];
            [formatter setFormat:formatValue];
          */
        };
    }
  else
    {
      formatter=[_formatter valueInComponent:component];
    };
  return formatter;
};


//--------------------------------------------------------------------
-(void)takeValuesFromRequest:(GSWRequest*)request
                   inContext:(GSWContext*)context
{
  id         resultValue = nil;
  NSString * errorDscr = nil;

  GSWComponent * component = GSWContext_component(context);
  
  if ((![self disabledInComponent: component]) && ([context _wasFormSubmitted])) {
    NSString * nameCtx = [self nameInContext:context];
    if (nameCtx != nil) {
      NSString* value = [request stringFormValueForKey: nameCtx];
      if (value != nil) {
        NSFormatter * formatter = nil;
        if ([value length] > 0) {
          formatter = [self formatterForComponent:component];
        }
        if (formatter != nil) {
                  if ([formatter getObjectValue:&resultValue
                                  forString:value
                                  errorDescription:&errorDscr]) {
                      if (value && !resultValue) {
                          NSWarnLog(@"There's a value (%@ of class %@) but no formattedValue with formater %@",
                                    value,
                                    [value class],
                                    formatter);
                      };
                    } else {
                      NSException* exception=nil;
                      NSString* valueKeyPath=[_value keyPath];

                      exception=[NSException exceptionWithName:@"EOValidationException"
                                             reason:errorDscr
                                             userInfo:[NSDictionary 
                                                        dictionaryWithObjectsAndKeys:
                                                          (resultValue ? resultValue : (id)@"nil"), @"EOValidatedObjectUserInfoKey",
                                                        valueKeyPath,@"EOValidatedPropertyUserInfoKey",
                                                        nil,nil]];
                      [component validationFailedWithException:exception
                                 value:resultValue
                                 keyPath:valueKeyPath];
                    }                    
                    
          if ((value != nil) && (_useDecimalNumber != nil) && ([_useDecimalNumber boolValueInComponent:component])) {
            // not tested! maybe we need a stringValue here first? dw
            resultValue = [NSDecimalNumber decimalNumberWithString: value];
          }
        } else { // no formatter
          resultValue=value;
          if ([resultValue length] == 0) {
            resultValue = nil;
          }
        }
      }
      [_value setValue:resultValue
              inComponent:component];
    }
  }
}

-(void) _appendValueAttributeToResponse:(GSWResponse *) response
                              inContext:(GSWContext*) context
{
 GSWComponent * component = GSWContext_component(context);
 id value = [_value valueInComponent:component];
 NSFormatter* formatter = nil;
 id formattedValue=nil;

 if (value != nil) {
 
   formatter = [self formatterForComponent:component];
   if (formatter != nil) {
     NS_DURING
      formattedValue=[formatter stringForObjectValue:value];
     NS_HANDLER
       formattedValue = nil;
       NSLog(@"%s: value '%@' cannot be formatted.",
                            __PRETTY_FUNCTION__, value);
     NS_ENDHANDLER
   }
   if (formattedValue == nil)
   {
      formattedValue = value;
   }

   GSWResponse_appendTagAttributeValueEscapingHTMLAttributeValue(response, value__Key, formattedValue, YES);
 }
}

-(void) _appendCloseTagToResponse:(GSWResponse *) response
                         inContext:(GSWContext*) context
{
}

@end