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105 lines
3.7 KiB
Plaintext
105 lines
3.7 KiB
Plaintext
// Copyright 2016 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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module bluetooth.mojom;
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import "device/bluetooth/public/mojom/device.mojom";
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// Possible errors sent as a response by Adapter.ConnectToDevice on a Device
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// connection request.
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enum ConnectResult {
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SUCCESS,
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AUTH_CANCELED,
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AUTH_FAILED,
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AUTH_REJECTED,
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AUTH_TIMEOUT,
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FAILED,
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INPROGRESS,
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UNKNOWN,
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UNSUPPORTED_DEVICE,
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DEVICE_NO_LONGER_IN_RANGE,
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};
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struct AdapterInfo {
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string address;
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string name;
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bool initialized;
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bool present;
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bool powered;
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bool discoverable;
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bool discovering;
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};
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interface DiscoverySession {
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// Returns true if the session is active, false otherwise. If false, the
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// adapter might still be discovering as there might still be other active
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// sessions; this just means that this instance no longer has a say in
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// whether or not discovery should continue. In this case, a new
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// DiscoverySession should be started to make sure that device discovery
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// continues.
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IsActive() => (bool active);
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// Requests this discovery session instance to stop. If this instance is
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// active, the session will stop. After a successful invocation, the
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// adapter may or may not stop device discovery, depending on whether or not
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// other active discovery sessions are present. Users are highly encouraged
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// to call this method to end a discovery session, instead of relying on
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// disconnecting the message pipe, so that they can respond to the result.
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// Returns true on success. Returns false if this session is inactive or an
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// error occurs while stopping the session.
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Stop() => (bool success);
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};
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interface Adapter {
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// Creates a GATT connection to the device with |address| and returns a
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// Device if the connection was succesful. The GATT connection is tied to the
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// the lifetime of the Device message pipe.
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ConnectToDevice(string address) => (ConnectResult result, Device? device);
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// Retrieves the list of the devices known by the adapter including Connected
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// Devices, GATT Connected Devices, Paired Devices and Devices discovered
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// during a classic or low-energy scan.
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GetDevices() => (array<DeviceInfo> devices);
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// Gets basic information about the adapter.
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GetInfo() => (AdapterInfo info);
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// Sets the client that listens for the adapter's events.
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SetClient(AdapterClient client);
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// Requests the adapter to start a new discovery session. Returns null if
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// session not created successfully.
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StartDiscoverySession() => (DiscoverySession? session);
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};
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interface AdapterClient {
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// Called when the presence of the adapter changes.
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PresentChanged(bool present);
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// Called when the radio power state of the adapter changes.
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PoweredChanged(bool powered);
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// Called when the discoverability state of the adapter changes.
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DiscoverableChanged(bool discoverable);
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// Called when the discovering state of the adapter changes.
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DiscoveringChanged(bool discovering);
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// Called the first time a device is discovered.
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DeviceAdded(DeviceInfo device);
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// Called when one of the following properties of a device changes:
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// Address, appearance, Bluetooth class, Inquiry RSSI, Inquiry TX Power,
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// Service UUIDs, Connectionable state, Connection state, Pairing state,
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// Trustable state.
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// Generally called for each advertisement packet recevied, but this is not
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// guaranteed on ChromeOS or Linux. Because the RSSI is always changing,
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// it's very likely this will be called for each advertising packet.
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DeviceChanged(DeviceInfo device);
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// Called after the device hasn't been seen for 3 minutes.
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DeviceRemoved(DeviceInfo device);
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};
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