//

//  WeaponCellView.m

//  Hedgewars

//

//  Created by Vittorio on 03/07/10.

//  Copyright 2010 __MyCompanyName__. All rights reserved.

//

#import "EditableCellView.h"

#import "CommodityFunctions.h"

@implementation EditableCellView

@synthesize delegate, textField, titleLabel, minimumCharacters, maximumCharacters, oldValue;

-(id) initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier {

    if ((self = [super initWithStyle:style reuseIdentifier:reuseIdentifier])) {

        delegate = nil;

        textField = [[UITextField alloc] initWithFrame:CGRectZero];

        textField.backgroundColor = [UIColor clearColor];

        textField.font = [UIFont boldSystemFontOfSize:[UIFont labelFontSize]];

        textField.delegate = self;

        textField.clearButtonMode = UITextFieldViewModeWhileEditing;

        textField.clearsOnBeginEditing = NO;

        textField.returnKeyType = UIReturnKeyDone;

        textField.adjustsFontSizeToFitWidth = YES;

        [textField addTarget:self action:@selector(save:) forControlEvents:UIControlEventEditingDidEndOnExit];

        [self.contentView addSubview:textField];

        titleLabel = [[UILabel alloc] init];

        titleLabel.textAlignment = UITextAlignmentLeft;

        titleLabel.backgroundColor = [UIColor clearColor];

        titleLabel.font = [UIFont boldSystemFontOfSize:[UIFont labelFontSize]];

        [self.contentView addSubview:titleLabel];

        minimumCharacters = 1;

        maximumCharacters = 64;

        oldValue = nil;

    }

    return self;

}

-(void) layoutSubviews {

    [super layoutSubviews];

    CGRect contentRect = self.contentView.bounds;

    CGFloat boundsX = contentRect.origin.x;

    int offset = 0;

    int skew = 0;

    if (self.imageView != nil)

        offset += self.imageView.frame.size.width;

    if ([self.titleLabel.text length] == 0)

        titleLabel.frame = CGRectZero;

    else {

        titleLabel.frame = CGRectMake(boundsX+offset+10, 10, 100, [UIFont labelFontSize] + 4);

        offset += 100;

        skew +=2;

    }

    textField.frame = CGRectMake(boundsX+offset+10, skew+10, 250, [UIFont labelFontSize] + 4);

}

-(void) setSelected:(BOOL)selected animated:(BOOL)animated {

    [super setSelected:selected animated:animated];

    // Configure the view for the selected state

}

-(void) dealloc {

    [super dealloc];

}

#pragma mark -

#pragma mark textField delegate

// limit the size of the field to 64 characters like in original frontend

-(BOOL) textField:(UITextField *)aTextField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string {

    return !([aTextField.text length] > self.maximumCharacters && [string length] > range.length);

}

// allow editing only if delegate is set and conformant to protocol

-(BOOL) textFieldShouldBeginEditing:(UITextField *)aTextField {

    return (delegate != nil) && [delegate respondsToSelector:@selector(saveTextFieldValue:withTag:)];

}

// the textfield is being modified, update the navigation controller

-(void) textFieldDidBeginEditing:(UITextField *)aTextField{

    // don't interact with table below

    ((UITableView*)[self superview]).scrollEnabled = NO;

    self.oldValue = self.textField.text;

    UIBarButtonItem *cancelButton = [[UIBarButtonItem alloc] initWithTitle:NSLocalizedString(@"Cancel",@"")

                                                                     style:UIBarButtonItemStylePlain

                                                                    target:self

                                                                    action:@selector(cancel:)];

    [(UITableViewController *)delegate navigationItem].leftBarButtonItem = cancelButton;

    [cancelButton release];

    UIBarButtonItem *saveButton = [[UIBarButtonItem alloc] initWithTitle:NSLocalizedString(@"Save",@"")

                                                                     style:UIBarButtonItemStyleDone

                                                                    target:self

                                                                    action:@selector(save:)];

    [(UITableViewController *)delegate navigationItem].rightBarButtonItem = saveButton;

    [saveButton release];

}

/* with this a field might remain in editing status even if the view moved;

   use method below instead that allows some more interaction

// don't accept 0-length strings

-(BOOL) textFieldShouldEndEditing:(UITextField *)aTextField {

    return ([aTextField.text length] > 0); 

}

*/

-(BOOL) textFieldShouldReturn:(UITextField *)aTextField {

    return ([aTextField.text length] >= self.minimumCharacters); 

}

// the textfield has been modified, tell the delegate to do something

-(void) textFieldDidEndEditing:(UITextField *)aTextField{

    ((UITableView*)[self superview]).scrollEnabled = YES;

    [(UITableViewController *)delegate navigationItem].rightBarButtonItem = [(UITableViewController *)delegate navigationItem].backBarButtonItem;

    [(UITableViewController *)delegate navigationItem].leftBarButtonItem = nil;

}

#pragma mark -

#pragma mark instance methods

// the user wants to show the keyboard

-(void) replyKeyboard {

    [self.textField becomeFirstResponder];

}

// the user pressed cancel so hide keyboard

-(void) cancel:(id) sender {

    self.textField.text = self.oldValue;

    [self save:sender];

}

// send the value to the delegate

-(void) save:(id) sender {

    if (delegate == nil || ![delegate respondsToSelector:@selector(saveTextFieldValue:withTag:)])

        return;

    // don't save if the textfield is invalid

    if (![self textFieldShouldReturn:textField])

        return;

    [delegate saveTextFieldValue:self.textField.text withTag:self.tag];

    [self.textField resignFirstResponder];

    self.oldValue = nil;

}

@end