1 files changed, 82 insertions, 0 deletions
diff --git a/chrome/browser/dom_ui/tips_handler.cc b/chrome/browser/dom_ui/tips_handler.cc
new file mode 100644
index 0000000..3df6d4a
--- /dev/null
+++ b/chrome/browser/dom_ui/tips_handler.cc
@@ -0,0 +1,82 @@
+// Copyright (c) 2009 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 "base/string_util.h"
+#include "base/values.h"
+#include "chrome/browser/dom_ui/tips_handler.h"
+#include "chrome/browser/profile.h"
+#include "chrome/browser/web_resource/web_resource_service.h"
+#include "chrome/common/web_resource/web_resource_unpacker.h"
+#include "chrome/common/pref_names.h"
+
+namespace {
+
+  const int kNumTipsToShow = 2;
+
+  // TODO(mrc): l10n
+  // This title should only appear the very first time Chrome is run with
+  // web resources enabled; otherwise the cache should be populated.
+  static const wchar_t* kTipsTitleAtStartup =
+      L"Tips and recommendations to help you discover interesting websites.";
+}
+
+TipsHandler::TipsHandler(DOMUI* dom_ui)
+    : DOMMessageHandler(dom_ui),
+      dom_ui_(dom_ui) {
+  dom_ui->RegisterMessageCallback("getTips",
+      NewCallback(this, &TipsHandler::HandleGetTips));
+
+  tips_cache_ = dom_ui_->GetProfile()->GetPrefs()->
+      GetDictionary(prefs::kNTPTipsCache);
+}
+
+void TipsHandler::HandleGetTips(const Value* content) {
+  // List containing the tips to be displayed.
+  ListValue list_value;
+
+  // Holds the web resource data found in the preferences cache.
+  DictionaryValue* wr_dict;
+
+  // These values hold the data for each web resource item.  As the web
+  // resource server solidifies, these may change.
+  std::wstring title;
+  std::wstring thumb;
+  std::wstring source;
+  std::wstring snipp;
+  std::wstring url;
+
+  // This should only be true on the very first Chrome run; otherwise,
+  // the cache should be populated.
+  if (tips_cache_ == NULL || tips_cache_->GetSize() < 1) {
+    title = kTipsTitleAtStartup;
+    DictionaryValue* tip_dict = new DictionaryValue();
+    tip_dict->SetString(WebResourceService::kWebResourceTitle, title);
+    list_value.Append(tip_dict);
+  } else {
+    int tip_counter = 0;
+    while (tips_cache_->GetDictionary(IntToWString(tip_counter++), &wr_dict)) {
+      DictionaryValue* tip_dict = new DictionaryValue();
+      if (wr_dict &&
+          wr_dict->GetSize() > 0 &&
+          wr_dict->GetString(WebResourceService::kWebResourceTitle, &title) &&
+          wr_dict->GetString(WebResourceService::kWebResourceURL, &url)) {
+        tip_dict->SetString(WebResourceService::kWebResourceTitle, title);
+        tip_dict->SetString(WebResourceService::kWebResourceURL, url);
+        list_value.Append(tip_dict);
+      }
+    }
+  }
+
+  // Send list of web resource items back out to the DOM.
+  dom_ui_->CallJavascriptFunction(L"tips", list_value);
+}
+
+// static
+void TipsHandler::RegisterUserPrefs(PrefService* prefs) {
+  prefs->RegisterDictionaryPref(prefs::kNTPTipsCache);
+  prefs->RegisterStringPref(prefs::kNTPTipsServer,
+                            WebResourceService::kDefaultResourceServer);
+}
+
+