// Copyright 2018 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_TAB_SWITCHER_UI_BUNDLED_TAB_GRID_GRID_GRID_CELL_H_
#define IOS_CHROME_BROWSER_TAB_SWITCHER_UI_BUNDLED_TAB_GRID_GRID_GRID_CELL_H_

#import <UIKit/UIKit.h>

#import "ios/chrome/browser/commerce/ui_bundled/price_card/price_card_view.h"
#import "ios/chrome/browser/tab_switcher/ui_bundled/tab_grid/grid/grid_constants.h"
#import "ios/chrome/browser/tab_switcher/ui_bundled/tab_grid/grid/grid_theme.h"
#import "ios/chrome/browser/tab_switcher/ui_bundled/tab_grid/tab_context_menu/tab_cell.h"

@class GridCell;
typedef NS_ENUM(NSInteger, EmptyThumbnailLayoutType);
@class LayoutGuideCenter;
@class TabGroupColorPalette;

// Informs the receiver of actions on the cell.
@protocol GridCellDelegate

- (void)closeButtonTappedForCell:(GridCell*)cell;

@end

// A square-ish cell in a grid. Contains an icon, title, snapshot, and close
// button.
@interface GridCell : TabCell

// Delegate to inform the grid of actions on the cell.
@property(nonatomic, weak) id<GridCellDelegate> delegate;
// The look of the cell.
@property(nonatomic, assign) GridTheme theme;
// Settable UI elements of the cell.
@property(nonatomic, weak) UIImage* icon;
@property(nonatomic, weak) UIImage* snapshot;
@property(nonatomic, copy) NSString* title;
// The color palette for surfaces.
@property(nonatomic, copy) TabGroupColorPalette* tabGroupColorPalette;
// Sets to update and keep cell alpha in sync.
@property(nonatomic, assign) CGFloat opacity;
// The current state which the cell should display.
@property(nonatomic, assign) GridCellState state;
@property(nonatomic, weak) PriceCardView* priceCardView;
// The layout guide center to use to refer to the selected cell.
@property(nonatomic, strong) LayoutGuideCenter* layoutGuideCenter;
// The layout type configuration for the empty thumbnail.
@property(nonatomic, assign) EmptyThumbnailLayoutType layoutType;

// Returns a transition selection cell with the same theme and frame as `cell`,
// but with no visible content view, no delegate, and no identifier.
//
// Note: Transition selection cell is a kind of "copy" of a GridCell to be used
// in the animated transitions that only shows selection state (that is, its
// content view is hidden).
+ (instancetype)transitionSelectionCellFromCell:(GridCell*)cell;

// Sets the price drop and displays the PriceViewCard.
- (void)setPriceDrop:(NSString*)price previousPrice:(NSString*)previousPrice;

// Hides the price drop annotation
- (void)hidePriceDrop;

// Starts the activity indicator animation over the favicon.
- (void)showFaviconActivityIndicator;

// Stops the activity indicator animation over the favicon.
- (void)hideFaviconActivityIndicator;

// Starts the activity indicator animation over the snapshot.
- (void)showSnapshotActivityIndicator;

// Stops the activity indicator animation over the snapshot.
- (void)hideSnapshotActivityIndicator;

// Registers the cell as a layout guide.
- (void)registerAsSelectedCellGuide;

// Returns the snapshot view's frame in window coordinates.
- (CGRect)snapshotFrame;

// Sets the accessibility identifiers within this cell based on its current
// `index`.
- (void)setAccessibilityIdentifiersWithIndex:(NSUInteger)index;

// Highlights or resets the highlighting of the cell.
- (void)setHighlightForGrouping:(BOOL)highlight;

@end

#endif  // IOS_CHROME_BROWSER_TAB_SWITCHER_UI_BUNDLED_TAB_GRID_GRID_GRID_CELL_H_