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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/search_engines/search_host_to_urls_map.h"
#include <algorithm>
#include <memory>
#include <string_view>
#include "components/search_engines/template_url.h"
SearchHostToURLsMap::SearchHostToURLsMap()
: initialized_(false) {
}
SearchHostToURLsMap::~SearchHostToURLsMap() {
}
void SearchHostToURLsMap::Init(
const TemplateURL::OwnedTemplateURLVector& template_urls,
const SearchTermsData& search_terms_data) {
DCHECK(!initialized_);
initialized_ = true; // Set here so Add doesn't assert.
Add(template_urls, search_terms_data);
}
void SearchHostToURLsMap::Add(TemplateURL* template_url,
const SearchTermsData& search_terms_data) {
DCHECK(initialized_);
DCHECK(template_url);
DCHECK_NE(TemplateURL::OMNIBOX_API_EXTENSION, template_url->type());
const GURL url(template_url->GenerateSearchURL(search_terms_data));
if (!url.is_valid() || !url.has_host())
return;
host_to_urls_map_[url.host()].insert(template_url);
}
void SearchHostToURLsMap::Remove(const TemplateURL* template_url) {
DCHECK(initialized_);
DCHECK(template_url);
DCHECK_NE(TemplateURL::OMNIBOX_API_EXTENSION, template_url->type());
// A given TemplateURL only occurs once in the map.
auto set_with_url = std::ranges::find_if(
host_to_urls_map_,
[&](std::pair<const std::string, TemplateURLSet>& entry) {
return entry.second.erase(template_url);
});
if (set_with_url != host_to_urls_map_.end() && set_with_url->second.empty())
host_to_urls_map_.erase(set_with_url);
}
TemplateURL* SearchHostToURLsMap::GetTemplateURLForHost(std::string_view host) {
DCHECK(initialized_);
HostToURLsMap::const_iterator iter = host_to_urls_map_.find(host);
if (iter == host_to_urls_map_.end() || iter->second.empty())
return nullptr;
// Because we have to happily tolerate duplicates in TemplateURLService now,
/// return the best TemplateURL for `host`, just like
// `GetTemplateURLForKeyword` returns the best TemplateURL for a keyword.
return *std::min_element(iter->second.begin(), iter->second.end(),
[](const auto& a, const auto& b) {
return a->IsBetterThanConflictingEngine(b);
});
}
SearchHostToURLsMap::TemplateURLSet* SearchHostToURLsMap::GetURLsForHost(
std::string_view host) {
DCHECK(initialized_);
auto urls_for_host = host_to_urls_map_.find(host);
if (urls_for_host == host_to_urls_map_.end() || urls_for_host->second.empty())
return nullptr;
return &urls_for_host->second;
}
void SearchHostToURLsMap::Add(
const TemplateURL::OwnedTemplateURLVector& template_urls,
const SearchTermsData& search_terms_data) {
for (const auto& turl : template_urls)
Add(turl.get(), search_terms_data);
}
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