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      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
     67