[CRD iOS] Send key events to the session.

remoting/ios/key_input.h

-// Copyright 2016 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.
-
-#ifndef REMOTING_IOS_KEY_INPUT_H_
-#define REMOTING_IOS_KEY_INPUT_H_
-
-#import <Foundation/Foundation.h>
-#import <UIKit/UIKit.h>
-
-// Key codes are translated from the on screen keyboard to the scan codes
-// needed for Chromoting input.  We don't have a good automated approach to do
-// this.  Instead we have created a mapping manually via trial and error.  To
-// support other keyboards in this context we would have to test and create a
-// mapping for each keyboard manually.
-
-// Contract to handle translated key presses from the on-screen keyboard to
-// the format required for Chromoting keyboard input.
-@protocol KeyInputDelegate<NSObject>
-
-- (void)keyboardShown;
-
-- (void)keyboardDismissed;
-
-- (void)keyboardActionKeyCode:(uint32_t)keyPressed isKeyDown:(BOOL)keyDown;
-
-@end
-
-@interface KeyInput : UIView<UIKeyInput>
-
-@property(weak, nonatomic) id<KeyInputDelegate> delegate;
-@property(readonly) BOOL keyboardVisible;
-@property(readonly) CGFloat keyboardHeight;
-
-- (void)ctrlAltDel;
-
-@end
-
-#endif  // REMOTING_IOS_KEY_INPUT_H_