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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/ui/webui/omnibox/omnibox_ui_handler.h"
#include <string>
#include "base/auto_reset.h"
#include "base/bind.h"
#include "base/strings/string16.h"
#include "base/strings/stringprintf.h"
#include "base/strings/utf_string_conversions.h"
#include "base/time/time.h"
#include "base/values.h"
#include "chrome/browser/autocomplete/autocomplete_classifier.h"
#include "chrome/browser/autocomplete/autocomplete_controller.h"
#include "chrome/browser/autocomplete/chrome_autocomplete_scheme_classifier.h"
#include "chrome/browser/bookmarks/bookmark_model_factory.h"
#include "chrome/browser/history/history_service.h"
#include "chrome/browser/history/history_service_factory.h"
#include "chrome/browser/search/search.h"
#include "chrome/browser/search_engines/template_url_service_factory.h"
#include "components/bookmarks/browser/bookmark_model.h"
#include "components/history/core/browser/url_database.h"
#include "components/metrics/proto/omnibox_event.pb.h"
#include "components/omnibox/autocomplete_match.h"
#include "components/omnibox/autocomplete_provider.h"
#include "components/search_engines/template_url.h"
#include "content/public/browser/web_ui.h"
#include "mojo/common/common_type_converters.h"
namespace mojo {
template <>
class TypeConverter<mojo::Array<AutocompleteAdditionalInfoPtr>,
AutocompleteMatch::AdditionalInfo> {
public:
static mojo::Array<AutocompleteAdditionalInfoPtr> ConvertFrom(
const AutocompleteMatch::AdditionalInfo& input) {
mojo::Array<AutocompleteAdditionalInfoPtr> array(input.size());
size_t index = 0;
for (AutocompleteMatch::AdditionalInfo::const_iterator i = input.begin();
i != input.end(); ++i, index++) {
AutocompleteAdditionalInfoPtr item(AutocompleteAdditionalInfo::New());
item->key = i->first;
item->value = i->second;
array[index] = item.Pass();
}
return array.Pass();
}
};
template <>
class TypeConverter<AutocompleteMatchMojoPtr, AutocompleteMatch> {
public:
static AutocompleteMatchMojoPtr ConvertFrom(const AutocompleteMatch& input) {
AutocompleteMatchMojoPtr result(AutocompleteMatchMojo::New());
if (input.provider != NULL) {
result->provider_name = input.provider->GetName();
result->provider_done = input.provider->done();
}
result->relevance = input.relevance;
result->deletable = input.deletable;
result->fill_into_edit = mojo::String::From(input.fill_into_edit);
result->inline_autocompletion =
mojo::String::From(input.inline_autocompletion);
result->destination_url = input.destination_url.spec();
result->contents = mojo::String::From(input.contents);
// At this time, we're not bothering to send along the long vector that
// represent contents classification. i.e., for each character, what
// type of text it is.
result->description = mojo::String::From(input.description);
// At this time, we're not bothering to send along the long vector that
// represents description classification. i.e., for each character, what
// type of text it is.
result->transition = input.transition;
result->is_history_what_you_typed_match =
input.is_history_what_you_typed_match;
result->allowed_to_be_default_match = input.allowed_to_be_default_match;
result->type = AutocompleteMatchType::ToString(input.type);
if (input.associated_keyword.get() != NULL) {
result->associated_keyword =
mojo::String::From(input.associated_keyword->keyword);
}
result->keyword = mojo::String::From(input.keyword);
result->duplicates = static_cast<int32>(input.duplicate_matches.size());
result->from_previous = input.from_previous;
result->additional_info =
mojo::Array<AutocompleteAdditionalInfoPtr>::From(input.additional_info);
return result.Pass();
}
};
template <>
class TypeConverter<AutocompleteResultsForProviderMojoPtr,
scoped_refptr<AutocompleteProvider> > {
public:
static AutocompleteResultsForProviderMojoPtr ConvertFrom(
const scoped_refptr<AutocompleteProvider>& input) {
AutocompleteResultsForProviderMojoPtr result(
AutocompleteResultsForProviderMojo::New());
result->provider_name = input->GetName();
result->results =
mojo::Array<AutocompleteMatchMojoPtr>::From(input->matches());
return result.Pass();
}
};
} // namespace mojo
OmniboxUIHandler::OmniboxUIHandler(Profile* profile)
: profile_(profile) {
ResetController();
}
OmniboxUIHandler::~OmniboxUIHandler() {}
void OmniboxUIHandler::OnResultChanged(bool default_match_changed) {
OmniboxResultMojoPtr result(OmniboxResultMojo::New());
result->done = controller_->done();
result->time_since_omnibox_started_ms =
(base::Time::Now() - time_omnibox_started_).InMilliseconds();
const base::string16 host = input_.text().substr(
input_.parts().host.begin,
input_.parts().host.len);
result->host = mojo::String::From(host);
bool is_typed_host;
if (!LookupIsTypedHost(host, &is_typed_host))
is_typed_host = false;
result->is_typed_host = is_typed_host;
{
// Copy to an ACMatches to make conversion easier. Since this isn't
// performance critical we don't worry about the cost here.
ACMatches matches(controller_->result().begin(),
controller_->result().end());
result->combined_results =
mojo::Array<AutocompleteMatchMojoPtr>::From(matches);
}
result->results_by_provider =
mojo::Array<AutocompleteResultsForProviderMojoPtr>::From(
controller_->providers());
// Fill AutocompleteMatchMojo::starred.
BookmarkModel* bookmark_model = BookmarkModelFactory::GetForProfile(profile_);
if (bookmark_model) {
for (size_t i = 0; i < result->combined_results.size(); ++i) {
result->combined_results[i]->starred = bookmark_model->IsBookmarked(
GURL(result->combined_results[i]->destination_url));
}
for (size_t i = 0; i < result->results_by_provider.size(); ++i) {
const AutocompleteResultsForProviderMojo& result_by_provider =
*result->results_by_provider[i];
for (size_t j = 0; j < result_by_provider.results.size(); ++j) {
result_by_provider.results[j]->starred = bookmark_model->IsBookmarked(
GURL(result_by_provider.results[j]->destination_url));
}
}
}
client()->HandleNewAutocompleteResult(result.Pass());
}
bool OmniboxUIHandler::LookupIsTypedHost(const base::string16& host,
bool* is_typed_host) const {
HistoryService* const history_service =
HistoryServiceFactory::GetForProfile(profile_,
Profile::EXPLICIT_ACCESS);
if (!history_service)
return false;
history::URLDatabase* url_db = history_service->InMemoryDatabase();
if (!url_db)
return false;
*is_typed_host = url_db->IsTypedHost(base::UTF16ToUTF8(host));
return true;
}
void OmniboxUIHandler::StartOmniboxQuery(const mojo::String& input_string,
int32_t cursor_position,
bool prevent_inline_autocomplete,
bool prefer_keyword,
int32_t page_classification) {
// Reset the controller. If we don't do this, then the
// AutocompleteController might inappropriately set its |minimal_changes|
// variable (or something else) and some providers will short-circuit
// important logic and return stale results. In short, we want the
// actual results to not depend on the state of the previous request.
ResetController();
time_omnibox_started_ = base::Time::Now();
input_ = AutocompleteInput(
input_string.To<base::string16>(), cursor_position, base::string16(),
GURL(),
static_cast<metrics::OmniboxEventProto::PageClassification>(
page_classification),
prevent_inline_autocomplete, prefer_keyword, true, true,
ChromeAutocompleteSchemeClassifier(profile_));
controller_->Start(input_);
}
void OmniboxUIHandler::ResetController() {
controller_.reset(new AutocompleteController(profile_,
TemplateURLServiceFactory::GetForProfile(profile_),
this,
AutocompleteClassifier::kDefaultOmniboxProviders));
}
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