1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
|
// Copyright (c) 2006-2008 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_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 views {
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 views::View,
public views::BaseButton::ButtonListener,
public views::LinkController,
public AnimationDelegate {
public:
explicit DownloadShelfView(TabContents* tab_contents);
// A new download has started, so add it to our shelf.
void AddDownload(DownloadItem* download);
virtual gfx::Size GetPreferredSize();
virtual void Layout();
// Invokes the following methods to do painting:
// PaintBackground, PaintBorder and PaintSeparators.
virtual void Paint(ChromeCanvas* canvas);
// 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(views::Link* source, int event_flags);
// Invoked when the user clicks the close button. Asks the browser to
// hide the download shelf.
virtual void ButtonPressed(views::BaseButton* button);
// Removes a specified download view. The supplied view is deleted after
// it's removed.
void RemoveDownloadView(views::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(views::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);
// The browser view needs to know when we are going away to properly return
// the resize corner size to WebKit so that we don't draw on top of it.
// This returns the showing state of our animation which is set to false at
// the beginning Show and true at the beginning of a Hide.
bool IsShowing() const;
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, views::View* v1, views::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.
views::ImageView* arrow_image_;
// Link for showing all downloads. This is contained as a child, and deleted
// by View.
views::Link* show_all_view_;
// Button for closing the downloads. This is contained as a child, and
// deleted by View.
views::Button* close_button_;
DISALLOW_EVIL_CONSTRUCTORS(DownloadShelfView);
};
#endif // CHROME_BROWSER_VIEWS_DOWNLOAD_SHELF_VIEW_H__
|
