Wire suggestion responses to AshAssistantController.

Bug: b:77235133
Change-Id: I0af7895ce28fe58195845f2ad4c130956e3518e6
Reviewed-on: https://chromium-review.googlesource.com/986667
Commit-Queue: David Black <dmblack@google.com>
Reviewed-by: Daniel Cheng <dcheng@chromium.org>
Reviewed-by: Xiaohui Chen <xiaohuic@chromium.org>
Reviewed-by: Xiyuan Xia <xiyuan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#547581}

ash/assistant/OWNERS

+# Temporary, since the IPC endpoint is just a skeleton.
+per-file ash_assistant_controller.cc=set noparent
+per-file ash_assistant_controller.cc=file://ipc/SECURITY_OWNERS
\ No newline at end of file

ash/assistant/ash_assistant_controller.cc

@@ -36,6 +36,12 @@ void AshAssistantController::OnHtmlResponse(const std::string& response) {
   NOTIMPLEMENTED();
 }
 
+void AshAssistantController::OnSuggestionsResponse(
+    const std::vector<std::string>& response) {
+  // TODO(dmblack): Handle.
+  NOTIMPLEMENTED();
+}
+
 void AshAssistantController::OnTextResponse(const std::string& response) {
   // TODO(dmblack): Handle.
   NOTIMPLEMENTED();

ash/assistant/ash_assistant_controller.h

@@ -23,6 +23,7 @@ class AshAssistantController
 
   // chromeos::assistant::mojom::AssistantEventSubscriber:
   void OnHtmlResponse(const std::string& response) override;
+  void OnSuggestionsResponse(const std::vector<std::string>& response) override;
   void OnTextResponse(const std::string& response) override;
   void OnOpenUrlResponse(const GURL& url) override;
 

chromeos/services/assistant/assistant_manager_service_impl.cc

@@ -79,25 +79,39 @@ void AssistantManagerServiceImpl::AddAssistantEventSubscriber(
 void AssistantManagerServiceImpl::OnShowHtml(const std::string& html) {
   main_thread_task_runner_->PostTask(
       FROM_HERE,
-      base::BindOnce(&OnShowHtmlInternal, weak_factory_.GetWeakPtr(), html));
+      base::BindOnce(&AssistantManagerServiceImpl::OnShowHtmlOnMainThread,
+                     weak_factory_.GetWeakPtr(), html));
+}
+
+void AssistantManagerServiceImpl::OnShowSuggestions(
+    const std::vector<std::string>& suggestions) {
+  main_thread_task_runner_->PostTask(
+      FROM_HERE,
+      base::BindOnce(
+          &AssistantManagerServiceImpl::OnShowSuggestionsOnMainThread,
+          weak_factory_.GetWeakPtr(), suggestions));
 }
 
 void AssistantManagerServiceImpl::OnShowText(const std::string& text) {
   main_thread_task_runner_->PostTask(
       FROM_HERE,
-      base::BindOnce(&OnShowTextInternal, weak_factory_.GetWeakPtr(), text));
+      base::BindOnce(&AssistantManagerServiceImpl::OnShowTextOnMainThread,
+                     weak_factory_.GetWeakPtr(), text));
 }
 
 void AssistantManagerServiceImpl::OnOpenUrl(const std::string& url) {
   main_thread_task_runner_->PostTask(
       FROM_HERE,
-      base::BindOnce(&OnOpenUrlInteranl, weak_factory_.GetWeakPtr(), url));
+      base::BindOnce(&AssistantManagerServiceImpl::OnOpenUrlOnMainThread,
+                     weak_factory_.GetWeakPtr(), url));
 }
 
 void AssistantManagerServiceImpl::OnSpeechLevelUpdated(
     const float speech_level) {
   main_thread_task_runner_->PostTask(
-      FROM_HERE, base::BindOnce(&OnSpeechLevelUpdatedInternal,
+      FROM_HERE,
+      base::BindOnce(
+          &AssistantManagerServiceImpl::OnSpeechLevelUpdatedOnMainThread,
           weak_factory_.GetWeakPtr(), speech_level));
 }
 
@@ -137,45 +151,32 @@ std::string AssistantManagerServiceImpl::BuildUserAgent(
   return user_agent;
 }
 
-// static
-void AssistantManagerServiceImpl::OnShowHtmlInternal(
-    const base::WeakPtr<AssistantManagerServiceImpl>& self,
+void AssistantManagerServiceImpl::OnShowHtmlOnMainThread(
     const std::string& html) {
-  if (self) {
-    self->subscribers_.ForAllPtrs(
-        [&html](auto* ptr) { ptr->OnHtmlResponse(html); });
-  }
+  subscribers_.ForAllPtrs([&html](auto* ptr) { ptr->OnHtmlResponse(html); });
 }
 
-// static
-void AssistantManagerServiceImpl::OnShowTextInternal(
-    const base::WeakPtr<AssistantManagerServiceImpl>& self,
+void AssistantManagerServiceImpl::OnShowSuggestionsOnMainThread(
+    const std::vector<std::string>& suggestions) {
+  subscribers_.ForAllPtrs(
+      [&suggestions](auto* ptr) { ptr->OnSuggestionsResponse(suggestions); });
+}
+
+void AssistantManagerServiceImpl::OnShowTextOnMainThread(
     const std::string& text) {
-  if (self) {
-    self->subscribers_.ForAllPtrs(
-        [&text](auto* ptr) { ptr->OnTextResponse(text); });
-  }
+  subscribers_.ForAllPtrs([&text](auto* ptr) { ptr->OnTextResponse(text); });
 }
 
-// static
-void AssistantManagerServiceImpl::OnOpenUrlInteranl(
-    const base::WeakPtr<AssistantManagerServiceImpl>& self,
+void AssistantManagerServiceImpl::OnOpenUrlOnMainThread(
     const std::string& url) {
-  if (self) {
-    self->subscribers_.ForAllPtrs(
+  subscribers_.ForAllPtrs(
       [&url](auto* ptr) { ptr->OnOpenUrlResponse(GURL(url)); });
-  }
 }
 
-// static
-void AssistantManagerServiceImpl::OnSpeechLevelUpdatedInternal(
-    const base::WeakPtr<AssistantManagerServiceImpl>& self,
+void AssistantManagerServiceImpl::OnSpeechLevelUpdatedOnMainThread(
     const float speech_level) {
-  if (self) {
-    self->subscribers_.ForAllPtrs([&speech_level](auto* ptr) {
-      ptr->OnSpeechLevelUpdated(speech_level);
-    });
-  }
+  subscribers_.ForAllPtrs(
+      [&speech_level](auto* ptr) { ptr->OnSpeechLevelUpdated(speech_level); });
 }
 
 }  // namespace assistant

chromeos/services/assistant/assistant_manager_service_impl.h

@@ -48,6 +48,7 @@ class AssistantManagerServiceImpl
 
   // AssistantActionObserver overrides:
   void OnShowHtml(const std::string& html) override;
+  void OnShowSuggestions(const std::vector<std::string>& suggestions) override;
   void OnShowText(const std::string& text) override;
   void OnOpenUrl(const std::string& url) override;
 
@@ -59,18 +60,12 @@ class AssistantManagerServiceImpl
                               const std::string& arc_version);
   std::string BuildUserAgent(const std::string& arc_version) const;
 
-  static void OnShowHtmlInternal(
-      const base::WeakPtr<AssistantManagerServiceImpl>& self,
-      const std::string& html);
-  static void OnShowTextInternal(
-      const base::WeakPtr<AssistantManagerServiceImpl>& self,
-      const std::string& text);
-  static void OnOpenUrlInteranl(
-      const base::WeakPtr<AssistantManagerServiceImpl>& self,
-      const std::string& url);
-  static void OnSpeechLevelUpdatedInternal(
-      const base::WeakPtr<AssistantManagerServiceImpl>& self,
-      const float speech_level);
+  void OnShowHtmlOnMainThread(const std::string& html);
+  void OnShowSuggestionsOnMainThread(
+      const std::vector<std::string>& suggestions);
+  void OnShowTextOnMainThread(const std::string& text);
+  void OnOpenUrlOnMainThread(const std::string& url);
+  void OnSpeechLevelUpdatedOnMainThread(const float speech_level);
 
   bool running_ = false;
   PlatformApiImpl platform_api_;

chromeos/services/assistant/public/mojom/assistant.mojom

@@ -25,6 +25,9 @@ interface AssistantEventSubscriber {
   // Assistant got Html response from server.
   OnHtmlResponse(string response);
 
+  // Assistant got suggestions response from server.
+  OnSuggestionsResponse(array<string> response);
+
   // Assistant got text response from server.
   OnTextResponse(string response);