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Side by Side Diff: mojo/shell/public/cpp/shell_client.h

Issue 1877753003: Move mojo\shell to services\shell (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@62scan
Patch Set: . Created 4 years, 8 months ago
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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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