Home | History | Annotate | Download | only in autocomplete 
      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/autocomplete/autocomplete_classifier.h"
      6 
      7 #include "base/auto_reset.h"
      8 #include "chrome/browser/autocomplete/autocomplete_controller.h"
      9 #include "chrome/browser/autocomplete/autocomplete_input.h"
     10 #include "chrome/browser/autocomplete/autocomplete_match.h"
     11 #include "chrome/browser/autocomplete/autocomplete_provider.h"
     12 #include "url/gurl.h"
     13 
     14 // static
     15 const int AutocompleteClassifier::kDefaultOmniboxProviders =
     16     AutocompleteProvider::TYPE_BOOKMARK |
     17     AutocompleteProvider::TYPE_BUILTIN |
     18     AutocompleteProvider::TYPE_HISTORY_QUICK |
     19     AutocompleteProvider::TYPE_HISTORY_URL |
     20     AutocompleteProvider::TYPE_KEYWORD |
     21     AutocompleteProvider::TYPE_SEARCH |
     22     AutocompleteProvider::TYPE_SHORTCUTS |
     23     AutocompleteProvider::TYPE_ZERO_SUGGEST;
     24 
     25 AutocompleteClassifier::AutocompleteClassifier(Profile* profile)
     26     : controller_(new AutocompleteController(profile, NULL,
     27                                              kDefaultOmniboxProviders)),
     28       inside_classify_(false) {
     29 }
     30 
     31 AutocompleteClassifier::~AutocompleteClassifier() {
     32   // We should only reach here after Shutdown() has been called.
     33   DCHECK(!controller_.get());
     34 }
     35 
     36 void AutocompleteClassifier::Classify(const base::string16& text,
     37                                       bool prefer_keyword,
     38                                       bool allow_exact_keyword_match,
     39                                       AutocompleteMatch* match,
     40                                       GURL* alternate_nav_url) {
     41   DCHECK(!inside_classify_);
     42   base::AutoReset<bool> reset(&inside_classify_, true);
     43   controller_->Start(AutocompleteInput(
     44       text, base::string16::npos, base::string16(), GURL(),
     45       AutocompleteInput::INVALID_SPEC, true, prefer_keyword,
     46       allow_exact_keyword_match, AutocompleteInput::BEST_MATCH));
     47   DCHECK(controller_->done());
     48   const AutocompleteResult& result = controller_->result();
     49   if (result.empty()) {
     50     if (alternate_nav_url)
     51       *alternate_nav_url = GURL();
     52     return;
     53   }
     54 
     55   DCHECK(result.default_match() != result.end());
     56   *match = *result.default_match();
     57   if (alternate_nav_url)
     58     *alternate_nav_url = result.alternate_nav_url();
     59 }
     60 
     61 void AutocompleteClassifier::Shutdown() {
     62   controller_.reset();
     63 }
     64