// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef IOS_CHROME_BROWSER_SYNC_MODEL_SYNC_ERROR_BROWSER_AGENT_H_
#define IOS_CHROME_BROWSER_SYNC_MODEL_SYNC_ERROR_BROWSER_AGENT_H_
#import "base/memory/raw_ptr.h"
#import "base/scoped_multi_source_observation.h"
#import "ios/chrome/browser/shared/model/browser/browser_observer.h"
#import "ios/chrome/browser/shared/model/browser/browser_user_data.h"
#import "ios/chrome/browser/shared/model/web_state_list/web_state_list_observer.h"
#import "ios/web/public/web_state.h"
#import "ios/web/public/web_state_observer.h"
class Browser;
@protocol SigninPresenter;
@class SyncErrorBrowserAgentAppStateObserver;
@protocol SyncPresenter;
// Browser agent that is responsible for displaying sync errors.
class SyncErrorBrowserAgent : public BrowserObserver,
public WebStateListObserver,
public web::WebStateObserver,
public BrowserUserData<SyncErrorBrowserAgent> {
public:
SyncErrorBrowserAgent(const SyncErrorBrowserAgent&) = delete;
SyncErrorBrowserAgent& operator=(const SyncErrorBrowserAgent&) = delete;
~SyncErrorBrowserAgent() override;
// Sets the UI providers to present sign in and sync UI when needed.
void SetUIProviders(id<SigninPresenter> signin_presenter_provider,
id<SyncPresenter> sync_presenter_provider);
// Clears the UI providers.
void ClearUIProviders();
// Called when the app state was updated to final stage.
void AppStateDidUpdateToFinalStage();
private:
friend class BrowserUserData<SyncErrorBrowserAgent>;
BROWSER_USER_DATA_KEY_DECL();
explicit SyncErrorBrowserAgent(Browser* browser);
// BrowserObserver methods
void BrowserDestroyed(Browser* browser) override;
// WebStateListObserver methods
void WebStateListDidChange(WebStateList* web_state_list,
const WebStateListChange& change,
const WebStateListStatus& status) override;
// web::WebStateObserver methods
void WebStateDestroyed(web::WebState* web_state) override;
void WebStateRealized(web::WebState* web_state) override;
// Helper method.
void CreateReSignInInfoBarDelegate(web::WebState* web_state);
// Triggers Infobar on all web states, if needed.
void TriggerInfobarOnAllWebStatesIfNeeded();
// Returns the state of the Browser
ChromeBrowserState* GetBrowserState();
raw_ptr<Browser> browser_ = nullptr;
// To observe unrealized WebStates.
base::ScopedMultiSourceObservation<web::WebState, web::WebStateObserver>
web_state_observations_{this};
// Provider to a SignIn presenter
__weak id<SigninPresenter> signin_presenter_provider_;
// Provider to a Sync presenter
__weak id<SyncPresenter> sync_presenter_provider_;
__strong SyncErrorBrowserAgentAppStateObserver* app_state_observer_;
};
#endif // IOS_CHROME_BROWSER_SYNC_MODEL_SYNC_ERROR_BROWSER_AGENT_H_