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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef MOJO_SHELL_PUBLIC_CPP_SHELL_CLIENT_H_ | |
| 6 #define MOJO_SHELL_PUBLIC_CPP_SHELL_CLIENT_H_ | |
| 7 | |
| 8 #include <stdint.h> | |
| 9 #include <string> | |
| 10 | |
| 11 #include "base/macros.h" | |
| 12 #include "mojo/shell/public/cpp/connection.h" | |
| 13 #include "mojo/shell/public/cpp/identity.h" | |
| 14 | |
| 15 namespace mojo { | |
| 16 | |
| 17 class Connector; | |
| 18 | |
| 19 // An interface representing an instance "known to the Mojo Shell". The | |
| 20 // implementation receives lifecycle messages for the instance and gets the | |
| 21 // opportunity to handle inbound connections brokered by the Shell. Every client | |
| 22 // of ShellConnection must implement this interface, and instances of this | |
| 23 // interface must outlive the ShellConnection. | |
| 24 class ShellClient { | |
| 25 public: | |
| 26 ShellClient(); | |
| 27 virtual ~ShellClient(); | |
| 28 | |
| 29 // Called once a bidirectional connection with the shell has been established. | |
| 30 // |identity| is the identity of the instance. | |
| 31 // |id| is a unique identifier the shell uses to identify this specific | |
| 32 // instance of the application. | |
| 33 // Called exactly once before any other method. | |
| 34 virtual void Initialize(Connector* connector, | |
| 35 const Identity& identity, | |
| 36 uint32_t id); | |
| 37 | |
| 38 // Called when a connection to this client is brokered by the shell. Override | |
| 39 // to expose services to the remote application. Return true if the connection | |
| 40 // should succeed. Return false if the connection should be rejected and the | |
| 41 // underlying pipe closed. The default implementation returns false. | |
| 42 virtual bool AcceptConnection(Connection* connection); | |
| 43 | |
| 44 // Called when ShellConnection's ShellClient binding (i.e. the pipe the | |
| 45 // Mojo Shell has to talk to us over) is closed. A shell client may use this | |
| 46 // as a signal to terminate. Return true from this method to tell the | |
| 47 // ShellConnection to run its connection lost closure if it has one, false to | |
| 48 // prevent it from being run. The default implementation returns true. | |
| 49 // When used in conjunction with ApplicationRunner, returning true here quits | |
| 50 // the message loop created by ApplicationRunner, which results in the app | |
| 51 // quitting. | |
| 52 virtual bool ShellConnectionLost(); | |
| 53 | |
| 54 private: | |
| 55 DISALLOW_COPY_AND_ASSIGN(ShellClient); | |
| 56 }; | |
| 57 | |
| 58 } // namespace mojo | |
| 59 | |
| 60 #endif // MOJO_SHELL_PUBLIC_CPP_SHELL_CLIENT_H_ | |
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