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// Copyright 2011 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_UI_SEARCH_ENGINES_SEARCH_ENGINE_TAB_HELPER_H_
#define CHROME_BROWSER_UI_SEARCH_ENGINES_SEARCH_ENGINE_TAB_HELPER_H_
#include "base/scoped_observation.h"
#include "chrome/browser/ui/find_bar/find_bar_controller.h"
#include "chrome/common/open_search_description_document_handler.mojom.h"
#include "components/favicon/core/favicon_driver.h"
#include "components/favicon/core/favicon_driver_observer.h"
#include "components/find_in_page/find_notification_details.h"
#include "content/public/browser/web_contents_observer.h"
#include "content/public/browser/web_contents_user_data.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/bindings/receiver_set.h"
namespace content {
class NavigationEntry;
class RenderFrameHost;
} // namespace content
// Per-tab search engine manager. Handles dealing search engine processing
// functionality.
class SearchEngineTabHelper
: public content::WebContentsObserver,
public content::WebContentsUserData<SearchEngineTabHelper>,
public chrome::mojom::OpenSearchDescriptionDocumentHandler,
public favicon::FaviconDriverObserver {
public:
// Binds to the supplied receiver if `rfh` is the outermost frame in a
// WebContents. Each WebContents could have multiple outermost frames, e.g.
// the primary main frame, prerendering main frames, and main frames stored in
// the back-forward cache.
static void BindOpenSearchDescriptionDocumentHandler(
content::RenderFrameHost* rfh,
mojo::PendingReceiver<chrome::mojom::OpenSearchDescriptionDocumentHandler>
receiver);
SearchEngineTabHelper(const SearchEngineTabHelper&) = delete;
SearchEngineTabHelper& operator=(const SearchEngineTabHelper&) = delete;
SearchEngineTabHelper(SearchEngineTabHelper&&) = delete;
SearchEngineTabHelper& operator=(SearchEngineTabHelper&&) = delete;
~SearchEngineTabHelper() override;
// content::WebContentsObserver overrides.
void DidFinishNavigation(content::NavigationHandle* handle) override;
void WebContentsDestroyed() override;
protected:
explicit SearchEngineTabHelper(content::WebContents* web_contents);
// Virtual for testing.
virtual std::u16string GenerateKeywordFromNavigationEntry(
content::NavigationEntry* entry);
private:
friend class content::WebContentsUserData<SearchEngineTabHelper>;
// chrome::mojom::OpenSearchDescriptionDocumentHandler overrides.
void PageHasOpenSearchDescriptionDocument(const GURL& page_url,
const GURL& osdd_url) override;
// favicon::FaviconDriverObserver:
void OnFaviconUpdated(favicon::FaviconDriver* driver,
NotificationIconType notification_icon_type,
const GURL& icon_url,
bool icon_url_changed,
const gfx::Image& image) override;
// If params has a searchable form, this tries to create a new keyword.
void GenerateKeywordIfNecessary(content::NavigationHandle* handle);
mojo::ReceiverSet<chrome::mojom::OpenSearchDescriptionDocumentHandler>
osdd_handler_receivers_;
base::ScopedObservation<favicon::FaviconDriver,
favicon::FaviconDriverObserver>
favicon_driver_observation_{this};
WEB_CONTENTS_USER_DATA_KEY_DECL();
};
#endif // CHROME_BROWSER_UI_SEARCH_ENGINES_SEARCH_ENGINE_TAB_HELPER_H_
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