Updating Pin Entry View and creating Connection Status View.

remoting/client/ios/domain/client_session_details.h

+// Copyright 2017 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_DOMAIN_CLIENT_SESSION_DETAILS_H_
+#define REMOTING_CLIENT_IOS_DOMAIN_CLIENT_SESSION_DETAILS_H_
+
+#import <Foundation/Foundation.h>
+
+@class HostInfo;
+
+// Session states that map to |remoting::protocol::ConnectionToHost::State| with
+// the added state of PinPrompt. This can be used to track the state of the
+// session for the duration of the connection.
+typedef NS_ENUM(NSInteger, SessionState) {
+  SessionInitializing,
+  SessionConnecting,
+  SessionPinPrompt,
+  SessionAuthenticated,
+  SessionConnected,
+  SessionFailed,
+  SessionClosed,
+};
+
+// The current state of a session and data needed for session context.
+@interface ClientSessionDetails : NSObject
+
+// This is the object that describes the host this session is centered around.
+@property(nonatomic) HostInfo* hostInfo;

[Yuwei, 2017/05/01 23:01:15]

Looks like HostInfo is a C++ struct so the property here seems to be just a raw
pointer?

Say if RemotingView gets replaced by the HostView (although for now it looks
like one stacking on top of another..) then it may cause segfault...

Since it's just a one-off copying so I think it's okay to just store HostInfo
rather than HostInfo*?

[nicholss, 2017/05/02 16:39:40]

No, HostInfo is a class that just has some data. See line 10, it is defined in
/domain/host_info

The object is managed by ARC so cleanup will happen when all objects that have a
hold on it let go.

[Yuwei, 2017/05/02 18:24:44]

Gotcha. Then that's fine. I think I got confused by ios/facade/host_info.h O_o

+// The current state of the session.
+@property(nonatomic, assign) SessionState state;
+
+@end
+
+#endif  //  REMOTING_CLIENT_IOS_DOMAIN_CLIENT_SESSION_DETAILS_H_