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// 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.
module mojo.shell.mojom;
// Mojo Capabilities -----------------------------------------------------------
//
// Mojo applications expose interfaces and capability classes to one another.
//
// An interface is just a Mojo interface, defined in a mojom file like this one.
// In a CapabilitySpec, an interface is represented by its fully qualified name,
// which is serialized based on the interface name and module:
// module::path::InterfaceName.
//
// A class is an alias to something, either a set of interface names granted
// with that class, or some behavior specific to the application that provides
// it.
// Describes the set of classes and interfaces required by an application.
// Note that there may be overlap between the interfaces implied by the
// resolution of classes and those specified in |interfaces|. The set of
// interfaces granted to the requestor is the union of these sets.
struct CapabilityRequest {
// An array of class names required.
array<string> classes;
// An array of interface names required.
array<string> interfaces;
};
// Describes the capabilities offered and requested by an application.
// This struct is populated from the application manifest.
struct CapabilitySpec {
// The classes offered by this application, and for each class an array of
// interfaces. If no interfaces are granted with a class, the array will be
// empty.
// A map of class name -> array of interfaces. The array can be empty,
// non-empty, or ["*"], which means allow access to all interfaces.
map<string, array<string>> provided;
// The applications this application needs to speak to, and the classes and
// interfaces it requests.
// A map of application name -> spec. "*" is also supported as the key, which
// supplies a CapabilityRequest for all applications in addition to specific
// ones specified.
map<string, CapabilityRequest> required;
};
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