components/TextFields/src/MDCTextField.h

/*
 Copyright 2016-present the Material Components for iOS authors. All Rights Reserved.

 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
 You may obtain a copy of the License at

 http://www.apache.org/licenses/LICENSE-2.0

 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
 */

#import <UIKit/UIKit.h>

#import "MDCTextInput.h"

/** When text is manually set via .text or setText:, this notification fires. */
extern NSString *_Nonnull const MDCTextFieldTextDidSetTextNotification;

/**
  Material Design compliant single-line text input.
  https://www.google.com/design/spec/components/text-fields.html#text-fields-single-line-text-field
 */
@interface MDCTextField : UITextField <MDCTextInput>

/** MDCTextField does not implement borders that conform to UITextBorderStyle. */
@property(nonatomic, assign) UITextBorderStyle borderStyle NS_UNAVAILABLE;

/**
 This label should always have the same layout as the input field (which is private API.)

 Unfortunately the included private baseline strut (which is the label returned for baseline-based
 auto layout) has bugs that keep it from matching custom layout. We recreate it but also allow it to
 have a width in case someone needs other kinds of auto layout constraints based off the input.

 It always has an alpha of 0.0.
 */
@property(nonatomic, nonnull, strong, readonly) UILabel *inputLayoutStrut;

/**
 An overlay view on the leading side.

 Note: if RTL is engaged, this will return the .rightView and if LTR, it will return the .leftView.
 */
@property(nonatomic, nullable, strong) UIView *leadingView;

/**
 Controls when the leading view will display.
 */
@property(nonatomic, assign) UITextFieldViewMode leadingViewMode;

@end