src/chrome/browser/ui/webui/options/home_page_overlay_handler.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chrome/browser/ui/webui/options/home_page_overlay_handler.h"
   6
   7 #include "base/bind.h"
   8 #include "base/bind_helpers.h"
   9 #include "base/values.h"
  10 #include "chrome/browser/autocomplete/autocomplete_classifier.h"
  11 #include "chrome/browser/autocomplete/autocomplete_controller.h"
  12 #include "chrome/browser/autocomplete/autocomplete_input.h"
  13 #include "chrome/browser/autocomplete/autocomplete_result.h"
  14 #include "chrome/browser/profiles/profile.h"
  15 #include "components/metrics/proto/omnibox_event.pb.h"
  16 #include "content/public/browser/web_ui.h"
  17 #include "grit/generated_resources.h"
  18 #include "ui/base/l10n/l10n_util.h"
  19
  20 namespace options {
  21
  22 HomePageOverlayHandler::HomePageOverlayHandler() {
  23 }
  24
  25 HomePageOverlayHandler::~HomePageOverlayHandler() {
  26 }
  27
  28 void HomePageOverlayHandler::RegisterMessages() {
  29   web_ui()->RegisterMessageCallback(
  30       "requestAutocompleteSuggestionsForHomePage",
  31       base::Bind(&HomePageOverlayHandler::RequestAutocompleteSuggestions,
  32                  base::Unretained(this)));
  33 }
  34
  35 void HomePageOverlayHandler::InitializeHandler() {
  36   Profile* profile = Profile::FromWebUI(web_ui());
  37   autocomplete_controller_.reset(new AutocompleteController(profile, this,
  38       AutocompleteClassifier::kDefaultOmniboxProviders));
  39 }
  40
  41 void HomePageOverlayHandler::GetLocalizedValues(
  42     base::DictionaryValue* localized_strings) {
  43   RegisterTitle(localized_strings, "homePageOverlay",
  44                 IDS_OPTIONS_HOMEPAGE_TITLE);
  45 }
  46
  47 void HomePageOverlayHandler::RequestAutocompleteSuggestions(
  48     const base::ListValue* args) {
  49   base::string16 input;
  50   CHECK_EQ(args->GetSize(), 1U);
  51   CHECK(args->GetString(0, &input));
  52
  53   autocomplete_controller_->Start(AutocompleteInput(
  54       input, base::string16::npos, base::string16(), GURL(),
  55       metrics::OmniboxEventProto::INVALID_SPEC, true, false, false, true));
  56 }
  57
  58 void HomePageOverlayHandler::OnResultChanged(bool default_match_changed) {
  59   const AutocompleteResult& result = autocomplete_controller_->result();
  60   base::ListValue suggestions;
  61   OptionsUI::ProcessAutocompleteSuggestions(result, &suggestions);
  62   web_ui()->CallJavascriptFunction(
  63       "HomePageOverlay.updateAutocompleteSuggestions", suggestions);
  64 }
  65
  66 }  // namespace options