cros: Open play store app for md-settings stylus "Find more apps" link

chrome/browser/ui/webui/settings/chromeos/device_stylus_handler.cc

 // Copyright 2017 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/ui/webui/settings/chromeos/device_stylus_handler.h"
 
 #include "ash/common/system/chromeos/palette/palette_utils.h"
 #include "base/bind.h"
+#include "chrome/browser/chromeos/arc/arc_util.h"
 #include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/ui/app_list/arc/arc_app_utils.h"
 #include "ui/events/devices/input_device_manager.h"
 
 namespace chromeos {
 namespace settings {
 
 namespace {
 
 // Keys in objects passed to onNoteTakingAppsUpdated.
 constexpr char kAppNameKey[] = "name";
 constexpr char kAppIdKey[] = "value";
@@ skipping 17 matching lines @@
   web_ui()->RegisterMessageCallback(
       "initializeStylusSettings",
       base::Bind(&StylusHandler::HandleInitialize, base::Unretained(this)));
   web_ui()->RegisterMessageCallback(
       "requestNoteTakingApps",
       base::Bind(&StylusHandler::RequestApps, base::Unretained(this)));
   web_ui()->RegisterMessageCallback(
       "setPreferredNoteTakingApp",
       base::Bind(&StylusHandler::SetPreferredNoteTakingApp,
                  base::Unretained(this)));
+  web_ui()->RegisterMessageCallback(
+      "showPlayStoreApps",
+      base::Bind(&StylusHandler::ShowPlayStoreApps, base::Unretained(this)));
 }
 
 void StylusHandler::OnAvailableNoteTakingAppsUpdated() {
   UpdateNoteTakingApps();
 }
 
 void StylusHandler::OnDeviceListsComplete() {
   SendHasStylus();
 }
 
@@ skipping 52 matching lines @@
 }
 
 void StylusHandler::SendHasStylus() {
   DCHECK(ui::InputDeviceManager::GetInstance()->AreDeviceListsComplete());
   AllowJavascript();
   CallJavascriptFunction(
       "cr.webUIListenerCallback", base::StringValue("has-stylus-changed"),
       base::FundamentalValue(ash::palette_utils::HasStylusInput()));
 }
 
+void StylusHandler::ShowPlayStoreApps(const base::ListValue* args) {
+  std::string apps_url;
+  args->GetString(0, &apps_url);
+  Profile* profile = Profile::FromWebUI(web_ui());
+  if (!arc::IsArcAllowedForProfile(profile)) {
+    VLOG(1) << "ARC is not enabled for this profile";
+    return;
+  }
+
+  arc::LaunchPlayStoreWithUrl(apps_url);
+}
+
 }  // namespace settings
 }  // namespace chromeos