| // Copyright 2018 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #import "ios/chrome/browser/ui/autofill/manual_fill/keyboard_observer_helper.h" |
| |
| #if !defined(__has_feature) || !__has_feature(objc_arc) |
| #error "This file requires ARC support." |
| #endif |
| |
| @interface KeyboardObserverHelper () |
| |
| // Boolean to check if the keyboard was actually dismissed. |
| @property(nonatomic) BOOL keyboardOnScreen; |
| |
| @end |
| |
| @implementation KeyboardObserverHelper |
| |
| - (instancetype)init { |
| self = [super init]; |
| if (self) { |
| [[NSNotificationCenter defaultCenter] |
| addObserver:self |
| selector:@selector(keyboardWillShow:) |
| name:UIKeyboardWillShowNotification |
| object:nil]; |
| [[NSNotificationCenter defaultCenter] |
| addObserver:self |
| selector:@selector(keyboardWillHide:) |
| name:UIKeyboardWillHideNotification |
| object:nil]; |
| [[NSNotificationCenter defaultCenter] |
| addObserver:self |
| selector:@selector(keyboardDidHide:) |
| name:UIKeyboardDidHideNotification |
| object:nil]; |
| } |
| return self; |
| } |
| |
| - (void)keyboardWillShow:(NSNotification*)notification { |
| self.keyboardOnScreen = YES; |
| } |
| |
| - (void)keyboardWillHide:(NSNotification*)notification { |
| self.keyboardOnScreen = NO; |
| dispatch_async(dispatch_get_main_queue(), ^{ |
| if (self.keyboardOnScreen) { |
| [self.delegate keyboardDidStayOnScreen]; |
| } |
| }); |
| } |
| |
| - (void)keyboardDidHide:(NSNotification*)notification { |
| dispatch_async(dispatch_get_main_queue(), ^{ |
| if (!self.keyboardOnScreen) { |
| [self.delegate keyboardDidHide]; |
| } |
| }); |
| } |
| |
| @end |