// Copyright 2019 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_MAIN_MODEL_BROWSER_IMPL_H_
#define IOS_CHROME_BROWSER_MAIN_MODEL_BROWSER_IMPL_H_
#import <CoreFoundation/CoreFoundation.h>
#import "base/memory/raw_ptr.h"
#import "base/memory/weak_ptr.h"
#import "base/observer_list.h"
#import "ios/chrome/browser/main/model/browser_web_state_list_delegate.h"
#import "ios/chrome/browser/shared/model/browser/browser.h"
#import "ios/chrome/browser/shared/model/profile/profile_ios_forward.h"
#import "ios/chrome/browser/shared/model/web_state_list/web_state_list.h"
@class SceneState;
// BrowserImpl is the concrete implementation of the Browser interface.
class BrowserImpl final : public Browser, public BrowserWebStateListDelegate {
public:
// Constructs an instance attached to `browser_state`, `scene_state`. If
// `active_browser` is not null, then the Browser is an inactive Browser
// and is considered to be attached to it. The `insertion_policy` and
// `activation_policy` are passed to BrowserWebStateListDelegate constructor.
BrowserImpl(ChromeBrowserState* browser_state,
SceneState* scene_state,
CommandDispatcher* command_dispatcher,
BrowserImpl* active_browser,
InsertionPolicy insertion_policy,
ActivationPolicy activation_policy,
Type type);
BrowserImpl(const BrowserImpl&) = delete;
BrowserImpl& operator=(const BrowserImpl&) = delete;
~BrowserImpl() final;
// Browser.
Type type() const override;
// TODO(crbug.com/358301380): After all usage has changed to GetProfile(),
// remove this method.
ChromeBrowserState* GetBrowserState() final;
ChromeBrowserState* GetProfile() final;
WebStateList* GetWebStateList() final;
CommandDispatcher* GetCommandDispatcher() final;
SceneState* GetSceneState() final;
void AddObserver(BrowserObserver* observer) final;
void RemoveObserver(BrowserObserver* observer) final;
base::WeakPtr<Browser> AsWeakPtr() final;
bool IsInactive() const final;
Browser* GetActiveBrowser() final;
Browser* GetInactiveBrowser() final;
Browser* CreateInactiveBrowser() final;
void DestroyInactiveBrowser() final;
private:
// The type of this browser.
const Type type_;
// The ChromeBrowserState this Browser is attached to. Must not be null.
raw_ptr<ChromeBrowserState> const browser_state_;
// The owned WebStateList.
WebStateList web_state_list_;
// The CommandDispatcher and the SceneState.
// Will both be nil for a temporary Browser.
__weak SceneState* scene_state_;
__strong CommandDispatcher* command_dispatcher_;
// Used to maintain the relationship between the regular and the inactive
// Browser. For a regular Browser, `active_browser_` will be set to `this`.
raw_ptr<Browser> const active_browser_;
std::unique_ptr<Browser> inactive_browser_;
// The list of observers.
base::ObserverList<BrowserObserver, /*check_empty=*/true> observers_;
// Needs to be the last member field to ensure all weak pointers are
// invalidated before the other internal objects are destroyed.
base::WeakPtrFactory<Browser> weak_ptr_factory_{this};
};
#endif // IOS_CHROME_BROWSER_MAIN_MODEL_BROWSER_IMPL_H_