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// Copyright 2025 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_LENS_LENS_COMPOSEBOX_CONTROLLER_H_
#define CHROME_BROWSER_UI_LENS_LENS_COMPOSEBOX_CONTROLLER_H_
#include <memory>
#include <set>
#include "base/memory/raw_ptr.h"
#include "chrome/browser/profiles/profile.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/bindings/receiver.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "third_party/lens_server_proto/aim_communication.pb.h"
#include "ui/webui/resources/cr_components/composebox/composebox.mojom.h"
class LensSearchController;
namespace lens {
class LensSessionMetricsLogger;
class LensComposeboxHandler;
// Controller for the Lens compose box. This class is responsible for handling
// communications between the Lens WebUI compose box and other Lens components,
// as well as storing any state needed for the compose box. Note: This class is
// different from the LensSearchboxController, which is responsible for the old,
// non-AIM search box.
class LensComposeboxController {
public:
explicit LensComposeboxController(
LensSearchController* lens_search_controller,
Profile* profile);
~LensComposeboxController();
// This method is used to set up communication between this instance and the
// compose box WebUI. This is called by the WebUIController when the WebUI is
// executing javascript and has bound the handler.
void BindComposebox(
mojo::PendingReceiver<composebox::mojom::PageHandler> pending_handler,
mojo::PendingRemote<composebox::mojom::Page> pending_page,
mojo::PendingReceiver<searchbox::mojom::PageHandler>
pending_searchbox_handler);
// Issues a composebox query to the side panel results. If this is called when
// the user is in AIM, issues a follow up query. Otherwise, issues a new AIM
// session query.
void IssueComposeboxQuery(const std::string& query_text);
// Called when the focus state of the composebox changes.
void OnFocusChanged(bool focused);
// Cleans up any any state associated with this UI instance.
void CloseUI();
// Handles AIM messages from the side panel remote UI.
void OnAimMessage(const std::vector<uint8_t>& message);
// Returns the session metrics logger for the current Lens session.
LensSessionMetricsLogger* GetSessionMetricsLogger();
LensComposeboxHandler* composebox_handler_for_testing() {
return composebox_handler_.get();
}
private:
// Builds a SubmitQuery ClientToAimMessage message to send to the side panel
// remote UI.
lens::ClientToAimMessage BuildSubmitQueryMessage(
const std::string& query_text);
// Owns this.
const raw_ptr<LensSearchController> lens_search_controller_;
// Guarantee to outlive this.
const raw_ptr<Profile> profile_;
// The remote UI's capabilities.
std::set<lens::FeatureCapability> remote_ui_capabilities_;
// The class responsible for handling messages between the compose box and
// the WebUI.
std::unique_ptr<LensComposeboxHandler> composebox_handler_;
};
} // namespace lens
#endif // CHROME_BROWSER_UI_LENS_LENS_COMPOSEBOX_CONTROLLER_H_
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