Adding the iOS app and integration example with GlRenderer.

remoting/client/ios/client_gestures.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_CLIENT_IOS_CLIENT_GESTURES_H_
+#define REMOTING_CLIENT_IOS_CLIENT_GESTURES_H_
+
+#import <Foundation/Foundation.h>
+#import <UIKit/UIKit.h>
+#include "base/logging.h"
+#import "remoting/client/ios/key_input.h"
+
+typedef NS_ENUM(NSInteger, HostInputScheme) {
+  // Mouse cursor is shown
+  // Dragging or Panning, moves the mouse cursor
+  // Tapping causes mouse input at the cursor location
+  HostInputSchemeTrackpad = 0,  // Default
+  // Mouse cursor is not shown
+  // Dragging or Panning is similar to a map
+  // Tapping causes mouse input at the tap location
+  HostInputSchemeTouch = 1
+};
+
+typedef NS_ENUM(NSInteger, MouseButton) {
+
+  NO_BUTTON = 0,
+  LEFT_BUTTON = 1,
+  MIDDLE_BUTTON = 2,
+  RIGHT_BUTTON = 3,
+
+};
+
+@interface ClientGestures : NSObject<UIGestureRecognizerDelegate> {
+ @private
+  UILongPressGestureRecognizer* _longPressRecognizer;
+  UIPanGestureRecognizer* _panRecognizer;
+  UIPanGestureRecognizer* _threeFingerPanRecognizer;
+  UIPinchGestureRecognizer* _pinchRecognizer;
+  UITapGestureRecognizer* _singleTapRecognizer;
+  UITapGestureRecognizer* _twoFingerTapRecognizer;
+  UITapGestureRecognizer* _threeFingerTapRecognizer;
+  UIScreenEdgePanGestureRecognizer* _edgeGesture;
+  UISwipeGestureRecognizer* _swipeGesture;
+
+  HostInputScheme _inputScheme;
+}
+
+- (instancetype)initWithView:(UIView*)view;
+
+// Zoom in/out
+- (IBAction)pinchGestureTriggered:(UIPinchGestureRecognizer*)sender;
+// Left mouse click, moves cursor
+- (IBAction)tapGestureTriggered:(UITapGestureRecognizer*)sender;
+// Scroll the view in 2d
+- (IBAction)panGestureTriggered:(UIPanGestureRecognizer*)sender;
+// Right mouse click and drag, moves cursor
+- (IBAction)longPressGestureTriggered:(UILongPressGestureRecognizer*)sender;
+// Right mouse click
+- (IBAction)twoFingerTapGestureTriggered:(UITapGestureRecognizer*)sender;
+// Middle mouse click
+- (IBAction)threeFingerTapGestureTriggered:(UITapGestureRecognizer*)sender;
+// Show hidden menus.  Swipe up for keyboard, swipe down for navigation menu
+- (IBAction)threeFingerPanGestureTriggered:(UIPanGestureRecognizer*)sender;
+
+@end
+
+#endif  //  REMOTING_CLIENT_IOS_CLIENT_GESTURES_H_