1// Copyright (c) 2011 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "chrome/browser/ui/views/theme_install_bubble_view.h"
6
7#include "base/utf_string_conversions.h"
8#include "content/browser/tab_contents/tab_contents.h"
9#include "content/common/notification_service.h"
10#include "grit/generated_resources.h"
11#include "ui/base/l10n/l10n_util.h"
12#include "ui/base/resource/resource_bundle.h"
13#include "ui/gfx/canvas_skia.h"
14#include "views/widget/widget.h"
15
16namespace {
17
18// The roundedness of the edges of our bubble.
19static const int kBubbleCornerRadius = 4;
20
21// Padding around text in popup box.
22static const int kTextHorizPadding = 90;
23static const int kTextVertPadding = 45;
24
25// Multiple loads can be started at once.  Only show one bubble, and keep
26// track of number of loads happening.  Close bubble when num_loads < 1.
27static int num_loads_extant_ = 0;
28
29}  // namespace
30
31ThemeInstallBubbleView::ThemeInstallBubbleView(TabContents* tab_contents)
32    : popup_(NULL) {
33  if (!tab_contents)
34    Close();
35
36  text_ = l10n_util::GetStringUTF16(IDS_THEME_LOADING_TITLE);
37  ResourceBundle& rb = ResourceBundle::GetSharedInstance();
38  gfx::Font font(rb.GetFont(ResourceBundle::LargeFont));
39  SetFont(font);
40
41  // We can't check for the size of tab_contents before we've generated
42  // the string and the font that determine the size of the bubble.
43  tab_contents->GetContainerBounds(&tab_contents_bounds_);
44  if (tab_contents_bounds_.height() < GetPreferredSize().height())
45    Close();
46
47  // Close when theme has been installed.
48  registrar_.Add(
49      this,
50      NotificationType::BROWSER_THEME_CHANGED,
51      NotificationService::AllSources());
52
53  // Close when we are installing an extension, not a theme.
54  registrar_.Add(
55      this,
56      NotificationType::NO_THEME_DETECTED,
57      NotificationService::AllSources());
58  registrar_.Add(
59      this,
60      NotificationType::EXTENSION_INSTALLED,
61      NotificationService::AllSources());
62  registrar_.Add(
63      this,
64      NotificationType::EXTENSION_INSTALL_ERROR,
65      NotificationService::AllSources());
66
67  // Don't let the bubble overlap the confirm dialog.
68  registrar_.Add(
69      this,
70      NotificationType::EXTENSION_WILL_SHOW_CONFIRM_DIALOG,
71      NotificationService::AllSources());
72
73  gfx::Rect rc(0, 0, 0, 0);
74  views::Widget::CreateParams params(views::Widget::CreateParams::TYPE_POPUP);
75  params.transparent = true;
76  params.accept_events = false;
77  popup_ = views::Widget::CreateWidget(params);
78  popup_->SetOpacity(0xCC);
79  popup_->Init(tab_contents->GetNativeView(), rc);
80  popup_->SetContentsView(this);
81  Reposition();
82  popup_->Show();
83
84  SchedulePaint();
85}
86
87ThemeInstallBubbleView::~ThemeInstallBubbleView() {
88  num_loads_extant_ = 0;
89}
90
91gfx::Size ThemeInstallBubbleView::GetPreferredSize() {
92  return gfx::Size(views::Label::font().GetStringWidth(text_) +
93      kTextHorizPadding,
94      ResourceBundle::GetSharedInstance().GetFont(
95      ResourceBundle::LargeFont).GetHeight() + kTextVertPadding);
96}
97
98void ThemeInstallBubbleView::Reposition() {
99  if (!popup_)
100    Close();
101
102  gfx::Size size = GetPreferredSize();
103  int mid_x = tab_contents_bounds_.x() +
104      (tab_contents_bounds_.right() - tab_contents_bounds_.x()) / 2;
105
106  int x = base::i18n::IsRTL() ?
107      mid_x + size.width() / 2 : mid_x - size.width() / 2;
108  int y = static_cast<int>(tab_contents_bounds_.y() +
109      (tab_contents_bounds_.bottom() - tab_contents_bounds_.y()) / 2 -
110      size.height() / 2);
111
112  popup_->SetBounds(gfx::Rect(x, y, size.width(), size.height()));
113}
114
115void ThemeInstallBubbleView::OnPaint(gfx::Canvas* canvas) {
116  SkScalar rad[8];
117  for (int i = 0; i < 8; ++i)
118    rad[i] = SkIntToScalar(kBubbleCornerRadius);
119
120  SkPaint paint;
121  paint.setStyle(SkPaint::kFill_Style);
122  paint.setFlags(SkPaint::kAntiAlias_Flag);
123  paint.setColor(SK_ColorBLACK);
124
125  SkRect rect;
126  rect.set(0, 0,
127           SkIntToScalar(width()),
128           SkIntToScalar(height()));
129  SkPath path;
130  path.addRoundRect(rect, rad, SkPath::kCW_Direction);
131  canvas->AsCanvasSkia()->drawPath(path, paint);
132
133  int text_width = views::Label::font().GetStringWidth(text_);
134  gfx::Rect body_bounds(kTextHorizPadding / 2, 0, text_width, height());
135  body_bounds.set_x(GetMirroredXForRect(body_bounds));
136
137  SkColor text_color = SK_ColorWHITE;
138  canvas->DrawStringInt(text_,
139                        views::Label::font(),
140                        text_color,
141                        body_bounds.x(),
142                        body_bounds.y(),
143                        body_bounds.width(),
144                        body_bounds.height());
145}
146
147void ThemeInstallBubbleView::Close() {
148  --num_loads_extant_;
149  if (!popup_) {
150    num_loads_extant_ = 0;
151    return;
152  }
153  if (num_loads_extant_ < 1) {
154    registrar_.RemoveAll();
155    popup_->Close();
156  }
157}
158
159void ThemeInstallBubbleView::Observe(NotificationType type,
160                                     const NotificationSource& source,
161                                     const NotificationDetails& details) {
162  Close();
163}
164
165// static
166void ThemeInstallBubbleView::Show(TabContents* tab_contents) {
167  ++num_loads_extant_;
168  if (num_loads_extant_ < 2)
169    new ThemeInstallBubbleView(tab_contents);
170}
171