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// Copyright (c) 2010 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.
#ifndef CHROME_BROWSER_COCOA_PREVIEWABLE_CONTENTS_CONTROLLER_H_
#define CHROME_BROWSER_COCOA_PREVIEWABLE_CONTENTS_CONTROLLER_H_
#pragma once
#import <Cocoa/Cocoa.h>
class TabContents;
// PreviewableContentsController manages the display of up to two tab contents
// views. It is primarily for use with Instant results. This class supports
// the notion of an "active" view vs. a "preview" tab contents view.
//
// The "active" view is a container view that can be retrieved using
// |-activeContainer|. Its contents are meant to be managed by an external
// class.
//
// The "preview" can be set using |-showPreview:| and |-hidePreview|. When a
// preview is set, the active view is hidden (but stays in the view hierarchy).
// When the preview is removed, the active view is reshown.
@interface PreviewableContentsController : NSViewController {
@private
// Container view for the "active" contents.
IBOutlet NSView* activeContainer_;
// The preview TabContents. Will be NULL if no preview is currently showing.
TabContents* previewContents_; // weak
}
@property(readonly, nonatomic) NSView* activeContainer;
// Sets the current preview and installs its TabContentsView into the view
// hierarchy. Hides the active view. |preview| must not be NULL.
- (void)showPreview:(TabContents*)preview;
// Closes the current preview and shows the active view.
- (void)hidePreview;
// Returns YES if the preview contents is currently showing.
- (BOOL)isShowingPreview;
@end
#endif // CHROME_BROWSER_COCOA_PREVIEWABLE_CONTENTS_CONTROLLER_H_
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