From 600da97e13e7eed343869f57644bc2e8667c8a26 Mon Sep 17 00:00:00 2001
From: Igor Kashkuta <xrazont@gmail.com>
Date: Mon, 4 Jul 2016 16:18:21 +0100
Subject: [PATCH] Revert "Preserve height of ChatInputItem if keyboard item was
 previously opened. (#170)" (#172)

This reverts commit b2fcf7b7fc3386d9926e13cc99a6309d4e36817b.
---
 .../Source/Input/ChatInputBarPresenter.swift  | 50 +------------------
 1 file changed, 2 insertions(+), 48 deletions(-)

diff --git a/ChattoAdditions/Source/Input/ChatInputBarPresenter.swift b/ChattoAdditions/Source/Input/ChatInputBarPresenter.swift
index adcd434..dee4133 100644
--- a/ChattoAdditions/Source/Input/ChatInputBarPresenter.swift
+++ b/ChattoAdditions/Source/Input/ChatInputBarPresenter.swift
@@ -35,28 +35,15 @@ protocol ChatInputBarPresenter: class {
 @objc public class BasicChatInputBarPresenter: NSObject, ChatInputBarPresenter {
     let chatInputBar: ChatInputBar
     let chatInputItems: [ChatInputItemProtocol]
-    let notificationCenter: NSNotificationCenter
 
-    public init(chatInputBar: ChatInputBar,
-                chatInputItems: [ChatInputItemProtocol],
-                chatInputBarAppearance: ChatInputBarAppearance,
-                notificationCenter: NSNotificationCenter = NSNotificationCenter.defaultCenter()) {
+    public init(chatInputBar: ChatInputBar, chatInputItems: [ChatInputItemProtocol], chatInputBarAppearance: ChatInputBarAppearance) {
         self.chatInputBar = chatInputBar
         self.chatInputItems = chatInputItems
         self.chatInputBar.setAppearance(chatInputBarAppearance)
-        self.notificationCenter = notificationCenter
         super.init()
 
         self.chatInputBar.presenter = self
         self.chatInputBar.inputItems = self.chatInputItems
-        self.notificationCenter.addObserver(self,
-                                            selector: #selector(BasicChatInputBarPresenter.keyboardDidChangeFrame),
-                                            name: UIKeyboardDidChangeFrameNotification,
-                                            object: nil)
-    }
-
-    deinit {
-        self.notificationCenter.removeObserver(self)
     }
 
     private(set) var focusedItem: ChatInputItemProtocol? {
@@ -70,9 +57,7 @@ protocol ChatInputBarPresenter: class {
 
     private func updateFirstResponderWithInputItem(inputItem: ChatInputItemProtocol) {
         let responder = self.chatInputBar.textView
-        let inputView = inputItem.inputView
-        self.setHeight(forInputView: inputView)
-        responder.inputView = inputView
+        responder.inputView = inputItem.inputView
         if responder.isFirstResponder() {
             responder.reloadInputViews()
         } else {
@@ -90,37 +75,6 @@ protocol ChatInputBarPresenter: class {
         }
         return firstKeyboardInputItem
     }
-
-    private func setHeight(forInputView inputView: UIView?) {
-        guard let inputView = inputView else { return }
-
-        var mask = inputView.autoresizingMask
-        mask.remove(.FlexibleHeight)
-        inputView.autoresizingMask = mask
-
-        if let heightConstraint = inputView.constraints.filter({ $0.firstAttribute == .Height }).first {
-            heightConstraint.constant = self.inputViewHeight
-        } else {
-            inputView.frame.size.height = self.inputViewHeight
-        }
-    }
-
-    private var lastKnownKeyboardHeight: CGFloat?
-    private let defaultKeyboardHeight: CGFloat = 216
-    private var inputViewHeight: CGFloat {
-        let accessoryViewHeight = self.chatInputBar.textView.inputAccessoryView?.bounds.height ?? 0
-        if let lastKnownKeyboardHeight = self.lastKnownKeyboardHeight {
-            return lastKnownKeyboardHeight - accessoryViewHeight
-        } else {
-            return self.defaultKeyboardHeight
-        }
-    }
-
-    @objc
-    private func keyboardDidChangeFrame(notification: NSNotification) {
-        guard let value = notification.userInfo?[UIKeyboardFrameEndUserInfoKey] as? NSValue else { return }
-        self.lastKnownKeyboardHeight = value.CGRectValue().height
-    }
 }
 
 // MARK: ChatInputBarPresenter