components/search_engines/search_host_to_urls_map.cc

   1 // Copyright 2014 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 "components/search_engines/search_host_to_urls_map.h"
   6
   7 #include "base/memory/scoped_ptr.h"
   8 #include "components/search_engines/template_url.h"
   9
  10 SearchHostToURLsMap::SearchHostToURLsMap()
  11     : initialized_(false) {
  12 }
  13
  14 SearchHostToURLsMap::~SearchHostToURLsMap() {
  15 }
  16
  17 void SearchHostToURLsMap::Init(
  18     const TemplateURLService::TemplateURLVector& template_urls,
  19     const SearchTermsData& search_terms_data) {
  20   DCHECK(!initialized_);
  21   initialized_ = true;  // Set here so Add doesn't assert.
  22   Add(template_urls, search_terms_data);
  23 }
  24
  25 void SearchHostToURLsMap::Add(TemplateURL* template_url,
  26                               const SearchTermsData& search_terms_data) {
  27   DCHECK(initialized_);
  28   DCHECK(template_url);
  29   DCHECK_NE(TemplateURL::OMNIBOX_API_EXTENSION, template_url->GetType());
  30
  31   const GURL url(template_url->GenerateSearchURL(search_terms_data));
  32   if (!url.is_valid() || !url.has_host())
  33     return;
  34
  35   host_to_urls_map_[url.host()].insert(template_url);
  36 }
  37
  38 void SearchHostToURLsMap::Remove(TemplateURL* template_url) {
  39   DCHECK(initialized_);
  40   DCHECK(template_url);
  41   DCHECK_NE(TemplateURL::OMNIBOX_API_EXTENSION, template_url->GetType());
  42
  43   for (HostToURLsMap::iterator i = host_to_urls_map_.begin();
  44        i != host_to_urls_map_.end(); ++i) {
  45     TemplateURLSet::iterator url_set_iterator = i->second.find(template_url);
  46     if (url_set_iterator != i->second.end()) {
  47       i->second.erase(url_set_iterator);
  48       if (i->second.empty())
  49         host_to_urls_map_.erase(i);
  50       // A given TemplateURL only occurs once in the map. As soon as we find the
  51       // entry, stop.
  52       return;
  53     }
  54   }
  55 }
  56
  57 TemplateURL* SearchHostToURLsMap::GetTemplateURLForHost(
  58     const std::string& host) {
  59   DCHECK(initialized_);
  60
  61   HostToURLsMap::const_iterator iter = host_to_urls_map_.find(host);
  62   if (iter == host_to_urls_map_.end() || iter->second.empty())
  63     return NULL;
  64   return *(iter->second.begin());  // Return the 1st element.
  65 }
  66
  67 SearchHostToURLsMap::TemplateURLSet* SearchHostToURLsMap::GetURLsForHost(
  68     const std::string& host) {
  69   DCHECK(initialized_);
  70
  71   HostToURLsMap::iterator urls_for_host = host_to_urls_map_.find(host);
  72   if (urls_for_host == host_to_urls_map_.end() || urls_for_host->second.empty())
  73     return NULL;
  74   return &urls_for_host->second;
  75 }
  76
  77 void SearchHostToURLsMap::Add(
  78     const TemplateURLService::TemplateURLVector& template_urls,
  79     const SearchTermsData& search_terms_data) {
  80   for (TemplateURLService::TemplateURLVector::const_iterator i(
  81        template_urls.begin()); i != template_urls.end(); ++i)
  82     Add(*i, search_terms_data);
  83 }