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.
7 import "mojo/application/public/interfaces/service_provider.mojom";
8 import "mojo/application/public/interfaces/shell.mojom";
10 // This is the primary interface implemented by every Mojo application. It
11 // allows the application to receive its startup arguments from the shell, and
12 // to be notified of events that occur during its execution.
14 // TODO(aa): It would be good to reorder the parameters once we have interface
16 interface Application {
17 // Initializes the application with the specified arguments. This method is
18 // guaranteed to be called before any other method is called, and will only be
21 // The |url| parameter is the identity of the application as far as the shell
22 // is concerned. This will be the URL the application was found at, after all
23 // mappings, resolution, and redirects. And it will not include the
24 // querystring, since the querystring is not part of an application's
26 Initialize(Shell shell, string url);
28 // Called when another application (identified by |requestor_url|) attempts to
29 // open a connection to this application.
31 // If the other application wants to request services from this application,
32 // it will have passed a valid interface request through the |services|
33 // parameter (i.e. one containing a valid message pipe endpoint). This
34 // application may then bind an implementation of |ServiceProvider| to that
35 // request in order to make services available to the other application.
37 // If the other application wants to offer services to this application, it
38 // will have passed a bound interface through the |exposed_services|
39 // parameter. This application may then request services through that
42 // It is possible that both parameters will be valid/bound if the other
43 // application wants to both request services from and offer services to this
46 // This application is free to ignore the |services| or |exposed_services|
47 // parameters if it does not wish to offer or request services.
49 // |allowed_interfaces| is a set of interface names that the shell has
50 // determined can be exposed by this application to the connecting
51 // application. When this parameter is empty, this application should expose
52 // no services to the connecting application. When this parameter contains
53 // only the single string value "*" the application may expose all of its
54 // services to the connecting application.
56 // |resolved_url| is the URL that was requested to create this connection,
57 // after all mappings, resolutions, and redirects. This will include any
58 // querystring that was part of the request.
60 AcceptConnection(string requestor_url,
61 ServiceProvider&? services,
62 ServiceProvider? exposed_services,
63 array<string> allowed_interfaces,
66 // Called by the shell in response to calling Shell's QuitApplication. The
67 // application should run the callback with true if shutdown can proceed.
68 // See Shell::QuitApplication for details about shutdown workflow.
69 OnQuitRequested() => (bool can_quit);