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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#import <Cocoa/Cocoa.h>
#include "base/mac/scoped_nsobject.h"
#include "base/memory/scoped_ptr.h"
#import "chrome/browser/ui/cocoa/view_resizer.h"
#include "ui/base/cocoa/tracking_area.h"
@class AnimatableView;
class Browser;
@class BrowserWindowController;
@class DownloadItemController;
class DownloadShelf;
@class DownloadShelfView;
@class HyperlinkButtonCell;
@class HoverButton;
namespace content {
class DownloadItem;
class PageNavigator;
}
// A controller class that manages the download shelf for one window. It is
// responsible for the behavior of the shelf itself (showing/hiding, handling
// the link, layout) as well as for managing the download items it contains.
//
// All the files in cocoa/downloads_* are related as follows:
//
// download_shelf_mac bridges calls from chromium's c++ world to the objc
// download_shelf_controller for the shelf (this file). The shelf's background
// is drawn by download_shelf_view. Every item in a shelf is controlled by a
// download_item_controller.
//
// download_item_mac bridges calls from chromium's c++ world to the objc
// download_item_controller, which is responsible for managing a single item
// on the shelf. The item controller loads its UI from a xib file, where the
// UI of an item itself is represented by a button that is drawn by
// download_item_cell.
@interface DownloadShelfController : NSViewController<NSTextViewDelegate> {
@private
IBOutlet HoverButton* hoverCloseButton_;
// YES if the download shelf is intended to be displayed. The shelf animates
// out when it is closing. During this time, barIsVisible_ is NO although the
// shelf is still visible on screen.
BOOL barIsVisible_;
// YES if the containing browser window is fullscreen.
BOOL isFullscreen_;
// YES if the shelf should be closed when the mouse leaves the shelf.
BOOL shouldCloseOnMouseExit_;
// YES if the mouse is currently over the download shelf.
BOOL isMouseInsideView_;
scoped_ptr<DownloadShelf> bridge_;
// Height of the shelf when it's fully visible.
CGFloat maxShelfHeight_;
// Current height of the shelf. Changes while the shelf is animating in or
// out.
CGFloat currentShelfHeight_;
// Used to autoclose the shelf when the mouse is moved off it.
ui::ScopedCrTrackingArea trackingArea_;
// The download items we have added to our shelf.
base::scoped_nsobject<NSMutableArray> downloadItemControllers_;
// The container that contains (and clamps) all the download items.
IBOutlet NSView* itemContainerView_;
// Delegate that handles resizing our view.
id<ViewResizer> resizeDelegate_;
// Used for loading pages.
content::PageNavigator* navigator_;
};
- (id)initWithBrowser:(Browser*)browser
resizeDelegate:(id<ViewResizer>)resizeDelegate;
// Run when the user clicks the 'Show All' button.
- (IBAction)showDownloadsTab:(id)sender;
// Run when the user clicks the close button on the right side of the shelf.
- (IBAction)handleClose:(id)sender;
// Shows or hides the download shelf based on the value of |show|.
// |isUserAction| should be YES if the operation is being triggered based on a
// user action (currently only relevant when hiding the shelf).
// Note: This is intended to be invoked from DownloadShelfMac. If invoked
// directly, the shelf visibility state maintained by DownloadShelf and the
// owning Browser will not be updated.
- (void)showDownloadShelf:(BOOL)show
isUserAction:(BOOL)isUserAction;
// Returns our view cast as an AnimatableView.
- (AnimatableView*)animatableView;
- (DownloadShelf*)bridge;
- (BOOL)isVisible;
// Add a new download item to the leftmost position of the download shelf. The
// item should not have been already added to this shelf.
- (void)addDownloadItem:(content::DownloadItem*)downloadItem;
// Similar to addDownloadItem above, but adds a DownloadItemController.
- (void)add:(DownloadItemController*)download;
// Remove a download, possibly via clearing browser data.
- (void)remove:(DownloadItemController*)download;
// Called by individual item controllers when their downloads are opened.
- (void)downloadWasOpened:(DownloadItemController*)download;
// Notification that the download shelf is going to be destroyed and should
// release the downloads.
- (void)exiting;
// Return the height of the download shelf.
- (float)height;
// Re-layouts all download items based on their current state.
- (void)layoutItems;
@end
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