// Copyright 2013 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/renderer/searchbox/search_bouncer.h"

#include <utility>

#include "base/bind.h"
#include "base/lazy_instance.h"

namespace {
base::LazyInstance<SearchBouncer>::Leaky g_search_bouncer =
    LAZY_INSTANCE_INITIALIZER;
}  // namespace

SearchBouncer::SearchBouncer() : search_bouncer_binding_(this) {}

SearchBouncer::~SearchBouncer() = default;

// static
SearchBouncer* SearchBouncer::GetInstance() {
  return g_search_bouncer.Pointer();
}

void SearchBouncer::RegisterMojoInterfaces(
    blink::AssociatedInterfaceRegistry* associated_interfaces) {
  // Note: Unretained is safe here because this class is a leaky LazyInstance.
  // For the same reason, UnregisterMojoInterfaces isn't required.
  associated_interfaces->AddInterface(base::Bind(
      &SearchBouncer::OnSearchBouncerRequest, base::Unretained(this)));
}

bool SearchBouncer::ShouldFork(const GURL& url) const {
  return IsNewTabPage(url);
}

bool SearchBouncer::IsNewTabPage(const GURL& url) const {
  // TODO(treib): Ignore query and ref. It's still an NTP even if those don't
  // match.
  // TODO(treib): Figure out if this should also handle the local NTP. Or are
  // chrome-search:// URLs handled elsewhere?
  return url.is_valid() && url == new_tab_page_url_;
}

void SearchBouncer::SetNewTabPageURL(const GURL& new_tab_page_url) {
  new_tab_page_url_ = new_tab_page_url;
}

void SearchBouncer::OnSearchBouncerRequest(
    chrome::mojom::SearchBouncerAssociatedRequest request) {
  search_bouncer_binding_.Bind(std::move(request));
}