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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/autocomplete_match.h"
#include "chrome/browser/autocomplete/autocomplete_provider.h"
#include "chrome/browser/history/history_service.h"
#include "chrome/browser/history/history_service_factory.h"
#include "chrome/browser/history/url_database.h"
#include "chrome/browser/search/search.h"
#include "chrome/browser/search_engines/template_url.h"
#include "content/public/browser/web_ui.h"
#include "mojo/common/common_type_converters.h"
#include "mojo/public/cpp/bindings/allocation_scope.h"
namespace mojo {
template <>
class TypeConverter<mojo::Array<AutocompleteAdditionalInfo>,
AutocompleteMatch::AdditionalInfo> {
public:
static mojo::Array<AutocompleteAdditionalInfo> ConvertFrom(
const AutocompleteMatch::AdditionalInfo& input,
Buffer* buf) {
mojo::Array<AutocompleteAdditionalInfo>::Builder array_builder(
input.size(), buf);
size_t index = 0;
for (AutocompleteMatch::AdditionalInfo::const_iterator i = input.begin();
i != input.end(); ++i, index++) {
AutocompleteAdditionalInfo::Builder item_builder(buf);
item_builder.set_key(i->first);
item_builder.set_value(i->second);
array_builder[index] = item_builder.Finish();
}
return array_builder.Finish();
}
MOJO_ALLOW_IMPLICIT_TYPE_CONVERSION();
};
template <>
class TypeConverter<AutocompleteMatchMojo, AutocompleteMatch> {
public:
static AutocompleteMatchMojo ConvertFrom(const AutocompleteMatch& input,
Buffer* buf) {
AutocompleteMatchMojo::Builder builder(buf);
if (input.provider != NULL) {
builder.set_provider_name(input.provider->GetName());
builder.set_provider_done(input.provider->done());
}
builder.set_relevance(input.relevance);
builder.set_deletable(input.deletable);
builder.set_fill_into_edit(input.fill_into_edit);
builder.set_inline_autocompletion(input.inline_autocompletion);
builder.set_destination_url(input.destination_url.spec());
builder.set_contents(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.
builder.set_description(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.
builder.set_transition(input.transition);
builder.set_is_history_what_you_typed_match(
input.is_history_what_you_typed_match);
builder.set_allowed_to_be_default_match(input.allowed_to_be_default_match);
builder.set_type(AutocompleteMatchType::ToString(input.type));
if (input.associated_keyword.get() != NULL)
builder.set_associated_keyword(input.associated_keyword->keyword);
builder.set_keyword(input.keyword);
builder.set_starred(input.starred);
builder.set_duplicates(static_cast<int32>(input.duplicate_matches.size()));
builder.set_from_previous(input.from_previous);
builder.set_additional_info(input.additional_info);
return builder.Finish();
}
MOJO_ALLOW_IMPLICIT_TYPE_CONVERSION();
};
template <>
class TypeConverter<AutocompleteResultsForProviderMojo, AutocompleteProvider*> {
public:
static AutocompleteResultsForProviderMojo ConvertFrom(
const AutocompleteProvider* input,
Buffer* buf) {
AutocompleteResultsForProviderMojo::Builder builder(buf);
builder.set_provider_name(input->GetName());
builder.set_results(
mojo::Array<AutocompleteMatchMojo>::From(input->matches()));
return builder.Finish();
}
MOJO_ALLOW_IMPLICIT_TYPE_CONVERSION();
};
} // namespace mojo
OmniboxUIHandler::OmniboxUIHandler(ScopedOmniboxPageHandle handle,
Profile* profile)
: page_(handle.Pass(), this),
profile_(profile) {
ResetController();
}
OmniboxUIHandler::~OmniboxUIHandler() {}
void OmniboxUIHandler::OnResultChanged(bool default_match_changed) {
mojo::AllocationScope scope;
OmniboxResultMojo::Builder builder;
builder.set_done(controller_->done());
builder.set_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);
builder.set_host(host);
bool is_typed_host;
if (!LookupIsTypedHost(host, &is_typed_host))
is_typed_host = false;
builder.set_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());
builder.set_combined_results(
mojo::Array<AutocompleteMatchMojo>::From(matches));
}
builder.set_results_by_provider(
mojo::Array<AutocompleteResultsForProviderMojo>::From(
*controller_->providers()));
page_->HandleNewAutocompleteResult(builder.Finish());
}
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,
cursor_position,
base::string16(), // user's desired tld (top-level domain)
GURL(),
static_cast<AutocompleteInput::PageClassification>(
page_classification),
prevent_inline_autocomplete,
prefer_keyword,
true, // allow exact keyword matches
true);
controller_->Start(input_); // want all matches
}
void OmniboxUIHandler::ResetController() {
controller_.reset(new AutocompleteController(profile_, this,
AutocompleteClassifier::kDefaultOmniboxProviders));
}
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