Adding WebRTC log upload list under chrome://webrtc-logs

chrome/browser/ui/webui/media/webrtc_logs_ui.cc

+// Copyright 2013 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/media/webrtc_logs_ui.h"
+
+#include <vector>
+
+#include "base/bind.h"
+#include "base/bind_helpers.h"
+#include "base/i18n/time_formatting.h"
+#include "base/memory/ref_counted_memory.h"
+#include "base/prefs/pref_service.h"
+#include "base/strings/utf_string_conversions.h"
+#include "base/values.h"
+#include "chrome/browser/browser_process.h"
+#include "chrome/browser/media/webrtc_log_upload_list.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/common/chrome_version_info.h"
+#include "chrome/common/pref_names.h"
+#include "chrome/common/url_constants.h"
+#include "content/public/browser/web_contents.h"
+#include "content/public/browser/web_ui.h"
+#include "content/public/browser/web_ui_data_source.h"
+#include "content/public/browser/web_ui_message_handler.h"
+#include "grit/browser_resources.h"
+#include "grit/chromium_strings.h"
+#include "grit/generated_resources.h"
+#include "grit/theme_resources.h"
+#include "ui/base/l10n/l10n_util.h"
+#include "ui/base/resource/resource_bundle.h"
+
+#if defined(OS_CHROMEOS)
+#include "chrome/browser/chromeos/settings/cros_settings.h"
+#endif
+
+using content::WebContents;
+using content::WebUIMessageHandler;
+
+namespace {
+
+content::WebUIDataSource* CreateWebRtcLogsUIHTMLSource() {
+  content::WebUIDataSource* source =
+      content::WebUIDataSource::Create(chrome::kChromeUIWebRtcLogsHost);
+  source->SetUseJsonJSFormatV2();
+
+  source->AddLocalizedString("webrtcLogsTitle", IDS_WEBRTC_LOGS_TITLE);
+  source->AddLocalizedString("webrtcLogCountFormat",
+                             IDS_WEBRTC_LOGS_LOG_COUNT_BANNER_FORMAT);
+  source->AddLocalizedString("webrtcLogHeaderFormat",
+                             IDS_WEBRTC_LOGS_LOG_HEADER_FORMAT);
+  source->AddLocalizedString("webrtcLogTimeFormat",
+                             IDS_WEBRTC_LOGS_LOG_TIME_FORMAT);
+  source->AddLocalizedString("bugLinkText", IDS_WEBRTC_LOGS_BUG_LINK_LABEL);
+  source->AddLocalizedString("noLogsMessage",
+                             IDS_WEBRTC_LOGS_NO_LOGS_MESSAGE);
+  source->AddLocalizedString("disabledHeader", IDS_WEBRTC_LOGS_DISABLED_HEADER);
+  source->AddLocalizedString("disabledMessage",
+                             IDS_WEBRTC_LOGS_DISABLED_MESSAGE);
+  source->SetJsonPath("strings.js");
+  source->AddResourcePath("webrtc_logs.js", IDR_WEBRTC_LOGS_JS);
+  source->SetDefaultResource(IDR_WEBRTC_LOGS_HTML);
+  return source;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+//
+// WebRtcLogsDOMHandler
+//
+////////////////////////////////////////////////////////////////////////////////
+
+// The handler for Javascript messages for the chrome://webrtc-logs/ page.
+class WebRtcLogsDOMHandler : public WebUIMessageHandler,
+                             public WebRtcLogUploadList::Delegate {
+ public:
+  explicit WebRtcLogsDOMHandler();
+  virtual ~WebRtcLogsDOMHandler();
+
+  // WebUIMessageHandler implementation.
+  virtual void RegisterMessages() OVERRIDE;
+
+  // WebRtcLogUploadList::Delegate implemenation.
+  virtual void OnUploadListAvailable() OVERRIDE;
+
+ private:
+  // Asynchronously fetches the list of upload WebRTC logs. Called from JS.
+  void HandleRequestWebRtcLogs(const ListValue* args);
+
+  // Sends the recently uploaded logs list JS.
+  void UpdateUI();
+
+  // Loads, parses and stores the list of uploaded WebRTC logs.
+  scoped_refptr<WebRtcLogUploadList> upload_list_;
+
+  // Set when |upload_list_| has finished populating the list of logs.
+  bool list_available_;
+
+  // Set when the webpage wants to update the list (on the webpage) but
+  // |upload_list_| hasn't finished populating the list of logs yet.
+  bool js_request_pending_;
+
+  DISALLOW_COPY_AND_ASSIGN(WebRtcLogsDOMHandler);
+};
+
+WebRtcLogsDOMHandler::WebRtcLogsDOMHandler()
+    : list_available_(false), js_request_pending_(false) {
+  upload_list_ = WebRtcLogUploadList::Create(this);
+}
+
+WebRtcLogsDOMHandler::~WebRtcLogsDOMHandler() {
+  upload_list_->ClearDelegate();
+}
+
+void WebRtcLogsDOMHandler::RegisterMessages() {
+  upload_list_->LoadUploadListAsynchronously();
+
+  web_ui()->RegisterMessageCallback("requestWebRtcLogsList",
+      base::Bind(&WebRtcLogsDOMHandler::HandleRequestWebRtcLogs,
+                 base::Unretained(this)));
+}
+
+void WebRtcLogsDOMHandler::HandleRequestWebRtcLogs(const ListValue* args) {
+  if (!WebRtcLogsUI::WebRtcLogsUIEnabled() || list_available_)
+    UpdateUI();
+  else
+    js_request_pending_ = true;
+}
+
+void WebRtcLogsDOMHandler::OnUploadListAvailable() {
+  list_available_ = true;
+  if (js_request_pending_)
+    UpdateUI();
+}
+
+void WebRtcLogsDOMHandler::UpdateUI() {
+  bool webrtc_logs_enabled = WebRtcLogsUI::WebRtcLogsUIEnabled();
+  ListValue upload_list;
+
+  if (webrtc_logs_enabled) {
+    std::vector<WebRtcLogUploadList::UploadInfo> uploads;
+    upload_list_->GetUploads(50, &uploads);
+
+    for (std::vector<WebRtcLogUploadList::UploadInfo>::iterator i =
+         uploads.begin(); i != uploads.end(); ++i) {
+      DictionaryValue* upload = new DictionaryValue();
+      upload->SetString("id", i->id);
+      upload->SetString("time", base::TimeFormatFriendlyDateAndTime(i->time));
+      upload_list.Append(upload);
+    }
+  }
+
+  base::FundamentalValue enabled(webrtc_logs_enabled);
+
+  const chrome::VersionInfo version_info;
+  base::StringValue version(version_info.Version());
+
+  web_ui()->CallJavascriptFunction("updateWebRtcLogsList", enabled, upload_list,
+                                   version);
+}
+
+}  // namespace
+
+///////////////////////////////////////////////////////////////////////////////
+//
+// WebRtcLogsUI
+//
+///////////////////////////////////////////////////////////////////////////////
+
+WebRtcLogsUI::WebRtcLogsUI(content::WebUI* web_ui) : WebUIController(web_ui) {
+  web_ui->AddMessageHandler(new WebRtcLogsDOMHandler());
+
+  // Set up the chrome://webrtc-logs/ source.
+  Profile* profile = Profile::FromWebUI(web_ui);
+  content::WebUIDataSource::Add(profile, CreateWebRtcLogsUIHTMLSource());
+}
+
+// static
+bool WebRtcLogsUI::WebRtcLogsUIEnabled() {
+#if defined(GOOGLE_CHROME_BUILD)
+#if defined(OS_CHROMEOS)
+  bool reporting_enabled = false;
+  chromeos::CrosSettings::Get()->GetBoolean(chromeos::kStatsReportingPref,
+                                            &reporting_enabled);
+  return reporting_enabled;
+#elif defined(OS_ANDROID)
+  // Android has it's own setings for metrics / crash uploading.
+  PrefService* prefs = g_browser_process->local_state();
+  return prefs->GetBoolean(prefs::kCrashReportingEnabled);
+#else
+  PrefService* prefs = g_browser_process->local_state();
+  return prefs->GetBoolean(prefs::kMetricsReportingEnabled);
+#endif
+#else
+  return false;
+#endif
+}