Host side implementation of ARC tts.

chrome/browser/chromeos/arc/arc_tts_service.cc

+// 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.
+
+#include "chrome/browser/chromeos/arc/arc_tts_service.h"
+
+#include "base/logging.h"
+#include "chrome/browser/speech/tts_controller.h"
+#include "components/arc/arc_bridge_service.h"
+
+namespace arc {
+
+ArcTtsService::ArcTtsService(ArcBridgeService* bridge_service)
+    : ArcService(bridge_service), binding_(this) {
+  arc_bridge_service()->tts()->AddObserver(this);
+}
+
+ArcTtsService::~ArcTtsService() {
+  arc_bridge_service()->tts()->RemoveObserver(this);
+}
+
+void ArcTtsService::OnInstanceReady() {
+  mojom::TtsInstance* tts_instance = arc_bridge_service()->tts()->instance();
+  if (!tts_instance) {
+    LOG(ERROR) << "OnTtsInstanceReady called, "
+               << "but no tts instance found";
+    return;
+  }
+  tts_instance->Init(binding_.CreateInterfacePtrAndBind());
+}
+
+void ArcTtsService::OnTtsEvent(uint32_t id,
+                               mojom::TtsEventType event_type,
+                               uint32_t char_index,
+                               const mojo::String& error_msg) {
+  if (!TtsController::GetInstance())
+    return;
+
+  TtsEventType chrome_event_type;
+  switch (event_type) {
+    case mojom::TtsEventType::START:
+      chrome_event_type = TTS_EVENT_START;
+      break;
+    case mojom::TtsEventType::END:
+      chrome_event_type = TTS_EVENT_END;
+      break;
+    case mojom::TtsEventType::INTERRUPTED:
+      chrome_event_type = TTS_EVENT_INTERRUPTED;
+      break;
+    case mojom::TtsEventType::ERROR:
+      chrome_event_type = TTS_EVENT_ERROR;
+      break;
+  }
+  TtsController::GetInstance()->OnTtsEvent(id, chrome_event_type, char_index,
+                                           error_msg);
+}
+
+}  // namespace arc