dialog_delegate.cc revision 2a99a7e74a7f215066514fe81d2bfa6639d9eddd 
1// Copyright (c) 2012 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 "ui/views/window/dialog_delegate.h"
6
7#include "base/command_line.h"
8#include "base/logging.h"
9#include "grit/ui_strings.h"
10#include "ui/base/l10n/l10n_util.h"
11#include "ui/base/ui_base_switches.h"
12#include "ui/views/bubble/bubble_border.h"
13#include "ui/views/bubble/bubble_frame_view.h"
14#include "ui/views/controls/button/label_button.h"
15#include "ui/views/widget/widget.h"
16#include "ui/views/widget/widget_observer.h"
17#include "ui/views/window/dialog_client_view.h"
18
19#if defined(USE_AURA)
20#include "ui/views/corewm/shadow_types.h"
21#endif
22
23namespace views {
24
25namespace {
26
27// Create a widget to host the dialog.
28Widget* CreateDialogWidgetImpl(DialogDelegateView* dialog_delegate_view,
29                               gfx::NativeWindow context,
30                               gfx::NativeWindow parent) {
31  views::Widget* widget = new views::Widget;
32  views::Widget::InitParams params;
33  params.delegate = dialog_delegate_view;
34  if (DialogDelegate::UseNewStyle()) {
35    // TODO(msw): Avoid Windows native controls or support dialog transparency
36    //            with a separate border Widget, like BubbleDelegateView.
37    params.transparent = views::View::get_use_acceleration_when_possible();
38    params.remove_standard_frame = true;
39  }
40  params.context = context;
41  params.parent = parent;
42  params.top_level = true;
43  widget->Init(params);
44  if (DialogDelegate::UseNewStyle()) {
45#if defined(USE_AURA)
46    // TODO(msw): Add a matching shadow type and remove the bubble frame border?
47    corewm::SetShadowType(widget->GetNativeWindow(), corewm::SHADOW_TYPE_NONE);
48#endif
49  }
50  return widget;
51}
52
53}  // namespace
54
55
56////////////////////////////////////////////////////////////////////////////////
57// DialogDelegate:
58
59DialogDelegate::~DialogDelegate() {
60}
61
62// static
63bool DialogDelegate::UseNewStyle() {
64  static const bool use_new_style = CommandLine::ForCurrentProcess()->HasSwitch(
65      switches::kEnableNewDialogStyle);
66  return use_new_style;
67}
68
69int DialogDelegate::GetDialogButtons() const {
70  return ui::DIALOG_BUTTON_OK | ui::DIALOG_BUTTON_CANCEL;
71}
72
73int DialogDelegate::GetDefaultDialogButton() const {
74  if (GetDialogButtons() & ui::DIALOG_BUTTON_OK)
75    return ui::DIALOG_BUTTON_OK;
76  if (GetDialogButtons() & ui::DIALOG_BUTTON_CANCEL)
77    return ui::DIALOG_BUTTON_CANCEL;
78  return ui::DIALOG_BUTTON_NONE;
79}
80
81string16 DialogDelegate::GetDialogButtonLabel(ui::DialogButton button) const {
82  if (button == ui::DIALOG_BUTTON_OK)
83    return l10n_util::GetStringUTF16(IDS_APP_OK);
84  if (button == ui::DIALOG_BUTTON_CANCEL) {
85    if (GetDialogButtons() & ui::DIALOG_BUTTON_OK)
86      return l10n_util::GetStringUTF16(IDS_APP_CANCEL);
87    return l10n_util::GetStringUTF16(IDS_APP_CLOSE);
88  }
89  NOTREACHED();
90  return string16();
91}
92
93bool DialogDelegate::IsDialogButtonEnabled(ui::DialogButton button) const {
94  return true;
95}
96
97View* DialogDelegate::CreateExtraView() {
98  return NULL;
99}
100
101View* DialogDelegate::CreateTitlebarExtraView() {
102  return NULL;
103}
104
105View* DialogDelegate::CreateFootnoteView() {
106  return NULL;
107}
108
109bool DialogDelegate::Cancel() {
110  return true;
111}
112
113bool DialogDelegate::Accept(bool window_closing) {
114  return Accept();
115}
116
117bool DialogDelegate::Accept() {
118  return true;
119}
120
121View* DialogDelegate::GetInitiallyFocusedView() {
122  // Focus the default button if any.
123  const DialogClientView* dcv = GetDialogClientView();
124  int default_button = GetDefaultDialogButton();
125  if (default_button == ui::DIALOG_BUTTON_NONE)
126    return NULL;
127
128  if ((default_button & GetDialogButtons()) == 0) {
129    // The default button is a button we don't have.
130    NOTREACHED();
131    return NULL;
132  }
133
134  if (default_button & ui::DIALOG_BUTTON_OK)
135    return dcv->ok_button();
136  if (default_button & ui::DIALOG_BUTTON_CANCEL)
137    return dcv->cancel_button();
138  return NULL;
139}
140
141DialogDelegate* DialogDelegate::AsDialogDelegate() {
142  return this;
143}
144
145ClientView* DialogDelegate::CreateClientView(Widget* widget) {
146  return new DialogClientView(widget, GetContentsView());
147}
148
149NonClientFrameView* DialogDelegate::CreateNonClientFrameView(Widget* widget) {
150  return UseNewStyle() ? CreateNewStyleFrameView(widget) :
151                         WidgetDelegate::CreateNonClientFrameView(widget);
152}
153
154// static
155NonClientFrameView* DialogDelegate::CreateNewStyleFrameView(Widget* widget) {
156  BubbleFrameView* frame = new BubbleFrameView(gfx::Insets(20, 20, 20, 20));
157  const SkColor color = widget->GetNativeTheme()->GetSystemColor(
158      ui::NativeTheme::kColorId_DialogBackground);
159  frame->SetBubbleBorder(
160      new BubbleBorder(BubbleBorder::FLOAT, BubbleBorder::SMALL_SHADOW, color));
161  frame->SetTitle(widget->widget_delegate()->GetWindowTitle());
162  DialogDelegate* delegate = widget->widget_delegate()->AsDialogDelegate();
163  if (delegate) {
164    View* titlebar_view = delegate->CreateTitlebarExtraView();
165    if (titlebar_view)
166      frame->SetTitlebarExtraView(titlebar_view);
167  }
168  frame->SetShowCloseButton(true);
169  frame->set_can_drag(true);
170  return frame;
171}
172
173const DialogClientView* DialogDelegate::GetDialogClientView() const {
174  return GetWidget()->client_view()->AsDialogClientView();
175}
176
177DialogClientView* DialogDelegate::GetDialogClientView() {
178  return GetWidget()->client_view()->AsDialogClientView();
179}
180
181ui::AccessibilityTypes::Role DialogDelegate::GetAccessibleWindowRole() const {
182  return ui::AccessibilityTypes::ROLE_DIALOG;
183}
184
185////////////////////////////////////////////////////////////////////////////////
186// DialogDelegateView:
187
188DialogDelegateView::DialogDelegateView() {
189  // A WidgetDelegate should be deleted on DeleteDelegate.
190  set_owned_by_client();
191}
192
193DialogDelegateView::~DialogDelegateView() {}
194
195// static
196Widget* DialogDelegateView::CreateDialogWidget(DialogDelegateView* dialog,
197                                               gfx::NativeWindow context,
198                                               gfx::NativeWindow parent) {
199  return CreateDialogWidgetImpl(dialog, context, parent);
200}
201
202void DialogDelegateView::DeleteDelegate() {
203  delete this;
204}
205
206Widget* DialogDelegateView::GetWidget() {
207  return View::GetWidget();
208}
209
210const Widget* DialogDelegateView::GetWidget() const {
211  return View::GetWidget();
212}
213
214View* DialogDelegateView::GetContentsView() {
215  return this;
216}
217
218}  // namespace views
219