Added chrome://translate-internals

chrome/browser/ui/webui/translate_internals/translate_internals_handler.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/translate_internals/translate_internals_handler.h"
+
+#include <map>
+#include <string>
+#include <vector>
+
+#include "base/bind.h"
+#include "base/bind_helpers.h"
+#include "base/prefs/pref_service.h"
+#include "base/values.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/translate/translate_prefs.h"
+#include "chrome/common/pref_names.h"
+#include "content/public/browser/web_contents.h"
+#include "content/public/browser/web_ui.h"
+
+void TranslateInternalsHandler::RegisterMessages() {
+  web_ui()->RegisterMessageCallback("requestInfo", base::Bind(
+      &TranslateInternalsHandler::OnRequestInfo, base::Unretained(this)));
+}
+
+void TranslateInternalsHandler::OnRequestInfo(const base::ListValue* /*args*/) {
+  content::WebContents* web_contents = web_ui()->GetWebContents();
+  Profile* profile =
+      Profile::FromBrowserContext(web_contents->GetBrowserContext());
+  PrefService* prefs = profile->GetOriginalProfile()->GetPrefs();
+
+  base::DictionaryValue dict;
+
+  static const char* keys[] = {
+    prefs::kEnableTranslate,
+    TranslatePrefs::kPrefTranslateLanguageBlacklist,
+    TranslatePrefs::kPrefTranslateSiteBlacklist,
+    TranslatePrefs::kPrefTranslateWhitelists,
+    TranslatePrefs::kPrefTranslateDeniedCount,
+    TranslatePrefs::kPrefTranslateAcceptedCount,
+  };
+
+  for (size_t i = 0; i < arraysize(keys); ++i) {
+    const char* key = keys[i];
+    const PrefService::Preference* pref = prefs->FindPreference(key);
+    if (pref)
+      dict.Set(key, pref->GetValue()->DeepCopy());
+  }
+
+  SendMessageToJs("prefsUpdated", dict);
+}
+
+void TranslateInternalsHandler::SendMessageToJs(const std::string& message,
+                                                const base::Value& value) {
+  const char func[] = "cr.translateInternals.messageHandler";
+  base::StringValue message_data(message);
+  web_ui()->CallJavascriptFunction(func, message_data, value);
+}