1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
|
// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_BROWSER_SPEECH_SPEECH_RECOGNITION_DISPATCHER_HOST_H_
#define CONTENT_BROWSER_SPEECH_SPEECH_RECOGNITION_DISPATCHER_HOST_H_
#include <memory>
#include <string>
#include "base/memory/weak_ptr.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/speech_recognition_event_listener.h"
#include "media/mojo/mojom/speech_recognizer.mojom.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "mojo/public/cpp/bindings/remote.h"
namespace network {
class PendingSharedURLLoaderFactory;
}
namespace url {
class Origin;
}
namespace content {
class SpeechRecognitionManager;
struct SpeechRecognitionSessionConfig;
struct SpeechRecognitionAudioForwarderConfig;
// SpeechRecognitionDispatcherHost is an implementation of the SpeechRecognizer
// interface that allows a RenderFrame to start a speech recognition session
// in the browser process, by communicating with SpeechRecognitionManager.
class SpeechRecognitionDispatcherHost : public media::mojom::SpeechRecognizer {
public:
SpeechRecognitionDispatcherHost(int render_process_id, int render_frame_id);
SpeechRecognitionDispatcherHost(const SpeechRecognitionDispatcherHost&) =
delete;
SpeechRecognitionDispatcherHost& operator=(
const SpeechRecognitionDispatcherHost&) = delete;
~SpeechRecognitionDispatcherHost() override;
static void Create(
int render_process_id,
int render_frame_id,
mojo::PendingReceiver<media::mojom::SpeechRecognizer> receiver);
base::WeakPtr<SpeechRecognitionDispatcherHost> AsWeakPtr();
// media::mojom::SpeechRecognizer implementation
void Start(
media::mojom::StartSpeechRecognitionRequestParamsPtr params) override;
private:
static void StartRequestOnUI(
base::WeakPtr<SpeechRecognitionDispatcherHost>
speech_recognition_dispatcher_host,
int render_process_id,
int render_frame_id,
media::mojom::StartSpeechRecognitionRequestParamsPtr params);
void StartSessionOnIO(
media::mojom::StartSpeechRecognitionRequestParamsPtr params,
int embedder_render_process_id,
int embedder_render_frame_id,
const url::Origin& origin,
std::unique_ptr<network::PendingSharedURLLoaderFactory>
pending_shared_url_loader_factory,
const std::string& accept_language,
bool can_render_frame_use_on_device);
int CreateSession(
const SpeechRecognitionSessionConfig& config,
mojo::PendingReceiver<media::mojom::SpeechRecognitionSession>
session_receiver,
mojo::PendingRemote<media::mojom::SpeechRecognitionSessionClient>
client_remote,
std::optional<SpeechRecognitionAudioForwarderConfig>
audio_forwarder_config,
bool can_render_frame_use_on_device);
const int render_process_id_;
const int render_frame_id_;
// Used for posting asynchronous tasks (on the IO thread) without worrying
// about this class being destroyed in the meanwhile (due to browser shutdown)
// since tasks pending on a destroyed WeakPtr are automatically discarded.
base::WeakPtrFactory<SpeechRecognitionDispatcherHost> weak_factory_{this};
};
} // namespace content
#endif // CONTENT_BROWSER_SPEECH_SPEECH_RECOGNITION_DISPATCHER_HOST_H_
|
