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// Copyright 2008, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#ifndef CHROME_BROWSER_VIEWS_DOWNLOAD_SHELF_VIEW_H__
#define CHROME_BROWSER_VIEWS_DOWNLOAD_SHELF_VIEW_H__
#include "chrome/common/slide_animation.h"
#include "chrome/views/button.h"
#include "chrome/views/link.h"
namespace ChromeViews {
class ImageView;
}
class DownloadItem;
class TabContents;
class DownloadAnimation;
// DownloadShelfView is a view that contains individual views for each download,
// as well as a close button and a link to show all downloads.
//
// To add a view representing a download to DownloadShelfView, invoke
// AddDownloadView. AddDownloadView takes ownership of the passed in View.
// DownloadShelfView does not hold an infinite number of download views, rather
// it'll automatically remove views once a certain point is reached. As such,
// the remove method is private.
class DownloadShelfView : public ChromeViews::View,
public ChromeViews::BaseButton::ButtonListener,
public ChromeViews::LinkController,
public AnimationDelegate {
public:
DownloadShelfView(TabContents* tab_contents);
// A new download has started, so add it to our shelf.
void AddDownload(DownloadItem* download);
virtual void GetPreferredSize(CSize *out);
virtual void Layout();
// Invokes the following methods to do painting:
// PaintBackground, PaintBorder and PaintSeparators.
virtual void Paint(ChromeCanvas* canvas);
void DidChangeBounds(const CRect& previous, const CRect& current);
// AnimationDelegate implementations
virtual void AnimationProgressed(const Animation* animation);
virtual void AnimationEnded(const Animation* animation);
// Invoked when the user clicks the 'show all downloads' link button.
virtual void LinkActivated(ChromeViews::Link* source, int event_flags);
// Invoked when the user clicks the close button. Asks the browser to
// hide the download shelf.
virtual void ButtonPressed(ChromeViews::BaseButton* button);
// Removes a specified download view. The supplied view is deleted after
// it's removed.
void RemoveDownloadView(ChromeViews::View* view);
// Adds a View representing a download to this DownloadShelfView.
// DownloadShelfView takes ownership of the View, and will delete it as
// necessary.
void AddDownloadView(ChromeViews::View* view);
// Invoked when the download shelf is migrated from one tab contents to a new
// one.
void ChangeTabContents(TabContents* old_contents, TabContents* new_contents);
private:
void Init();
// Paints the border.
void PaintBorder(ChromeCanvas* canvas);
// Paints the separators. This invokes PaintSeparator to paint a particular
// separator.
void PaintSeparators(ChromeCanvas* canvas);
// Paints the separator between the two views.
void PaintSeparator(ChromeCanvas* canvas,
ChromeViews::View* v1,
ChromeViews::View* v2);
TabContents* tab_contents_;
// The animation for adding new items to the shelf.
scoped_ptr<SlideAnimation> new_item_animation_;
// The show/hide animation for the shelf itself.
scoped_ptr<SlideAnimation> shelf_animation_;
// The download views. These are also child Views, and deleted when
// the DownloadShelfView is deleted.
std::vector<View*> download_views_;
// An image displayed on the right of the "Show all downloads..." link.
ChromeViews::ImageView* arrow_image_;
// Link for showing all downloads. This is contained as a child, and deleted
// by View.
ChromeViews::Link* show_all_view_;
// Button for closing the downloads. This is contained as a child, and
// deleted by View.
ChromeViews::Button* close_button_;
DISALLOW_EVIL_CONSTRUCTORS(DownloadShelfView);
};
#endif // CHROME_BROWSER_VIEWS_DOWNLOAD_SHELF_VIEW_H__
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