inactive_tabs_mediator.h

// Copyright 2023 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_UI_TAB_SWITCHER_TAB_GRID_INACTIVE_TABS_INACTIVE_TABS_MEDIATOR_H_
#define IOS_CHROME_BROWSER_UI_TAB_SWITCHER_TAB_GRID_INACTIVE_TABS_INACTIVE_TABS_MEDIATOR_H_

#import <Foundation/Foundation.h>

#import "ios/chrome/browser/ui/tab_switcher/tab_grid/grid/grid_commands.h"

@protocol InactiveTabsInfoConsumer;
class PrefService;
class SnapshotBrowserAgent;
class SessionRestorationBrowserAgent;
@protocol TabCollectionConsumer;
class WebStateList;

namespace sessions {
class TabRestoreService;
}  // namespace sessions

// This mediator provides data to the Inactive Tabs grid and handles
// interactions.
@interface InactiveTabsMediator : NSObject <GridCommands>

// `consumer` receives `webStateList` and Inactive Tabs info updates.
@property(nonatomic, weak) id<TabCollectionConsumer, InactiveTabsInfoConsumer>
    consumer;

// Initializer with:
// - `webStateList`: the list of tabs to observe.
// - `prefService`: the preference service from the application context.
// - `sessionRestorationAgent`: the session restoration browser agent from the
//     inactive browser.
// - `snapshotAgent`: the snapshot browser agent from the inactive browser.
// - `tabRestoreService`: the service that holds the recently closed tabs.
- (instancetype)initWithWebStateList:(WebStateList*)webStateList
                         prefService:(PrefService*)prefService
             sessionRestorationAgent:
                 (SessionRestorationBrowserAgent*)sessionRestorationAgent
                       snapshotAgent:(SnapshotBrowserAgent*)snapshotAgent
                   tabRestoreService:
                       (sessions::TabRestoreService*)tabRestoreService
    NS_DESIGNATED_INITIALIZER;
- (instancetype)init NS_UNAVAILABLE;

// Returns the number of items pushed to the consumer.
- (NSInteger)numberOfItems;

// Disconnects the mediator.
- (void)disconnect;

@end

#endif  // IOS_CHROME_BROWSER_UI_TAB_SWITCHER_TAB_GRID_INACTIVE_TABS_INACTIVE_TABS_MEDIATOR_H_