threema-ios/ThreemaFramework/UITextField+Themed.m

//  _____ _
// |_   _| |_  _ _ ___ ___ _ __  __ _
//   | | | ' \| '_/ -_) -_) '  \/ _` |_
//   |_| |_||_|_| \___\___|_|_|_\__,_(_)
//
// Threema iOS Client
// Copyright (c) 2016-2020 Threema GmbH
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License, version 3,
// as published by the Free Software Foundation.
//
// This program 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 Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.

#import "UITextField+Themed.h"
#import "BundleUtil.h"
#import "UIImage+ColoredImage.h"

@implementation UITextField (UITextField)

- (void)colorizeClearButton {
    if (self.clearButtonMode != UITextFieldViewModeNever) {
        self.rightViewMode = self.clearButtonMode;
        self.clearButtonMode = UITextFieldViewModeNever;
        
        UIImage *clearImage = [[BundleUtil imageNamed:@"Close"] imageWithTint:[Colors fontLight]];
        UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
        [button setImage:clearImage forState:UIControlStateNormal];
        button.imageEdgeInsets = UIEdgeInsetsMake(2, 2, 2, 2);
        button.imageView.contentMode=UIViewContentModeScaleAspectFit;
        button.contentHorizontalAlignment=UIControlContentHorizontalAlignmentFill;
        button.contentVerticalAlignment=UIControlContentVerticalAlignmentFill;

        [button addTarget:self action:@selector(clear:) forControlEvents:UIControlEventTouchUpInside];
        self.rightView = button;
        
        button.accessibilityLabel = [BundleUtil localizedStringForKey:@"delete"];
    }
}

- (void)clear:(id)sender{
    self.text = @"";
}

@end