src/ui/views/window/dialog_delegate.cc

   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/logging.h"
   8 #include "grit/ui_strings.h"
   9 #include "ui/base/l10n/l10n_util.h"
  10 #include "ui/views/bubble/bubble_border.h"
  11 #include "ui/views/bubble/bubble_frame_view.h"
  12 #include "ui/views/controls/button/label_button.h"
  13 #include "ui/views/widget/widget.h"
  14 #include "ui/views/widget/widget_observer.h"
  15 #include "ui/views/window/dialog_client_view.h"
  16
  17 #if defined(OS_WIN)
  18 #include "ui/base/win/shell.h"
  19 #endif
  20
  21 namespace views {
  22
  23 ////////////////////////////////////////////////////////////////////////////////
  24 // DialogDelegate:
  25
  26 DialogDelegate::DialogDelegate() : supports_new_style_(true) {
  27 }
  28
  29 DialogDelegate::~DialogDelegate() {
  30 }
  31
  32 // static
  33 Widget* DialogDelegate::CreateDialogWidget(WidgetDelegate* delegate,
  34                                            gfx::NativeWindow context,
  35                                            gfx::NativeView parent) {
  36   return CreateDialogWidgetWithBounds(delegate, context, parent, gfx::Rect());
  37 }
  38
  39 // static
  40 Widget* DialogDelegate::CreateDialogWidgetWithBounds(WidgetDelegate* delegate,
  41                                                      gfx::NativeWindow context,
  42                                                      gfx::NativeView parent,
  43                                                      const gfx::Rect& bounds) {
  44   views::Widget* widget = new views::Widget;
  45   views::Widget::InitParams params;
  46   params.delegate = delegate;
  47   params.bounds = bounds;
  48   DialogDelegate* dialog = delegate->AsDialogDelegate();
  49
  50 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
  51   // The new style doesn't support unparented dialogs on Linux desktop.
  52   if (dialog)
  53     dialog->supports_new_style_ &= parent != NULL;
  54 #elif defined(OS_WIN)
  55   // The new style doesn't support unparented dialogs on Windows Classic themes.
  56   if (dialog && !ui::win::IsAeroGlassEnabled())
  57     dialog->supports_new_style_ &= parent != NULL;
  58 #endif
  59
  60   if (!dialog || dialog->UseNewStyleForThisDialog()) {
  61     params.opacity = Widget::InitParams::TRANSLUCENT_WINDOW;
  62     params.remove_standard_frame = true;
  63     // The bubble frame includes its own shadow; remove any native shadowing.
  64     params.shadow_type = views::Widget::InitParams::SHADOW_TYPE_NONE;
  65   }
  66   params.context = context;
  67   params.parent = parent;
  68   // Web-modal (ui::MODAL_TYPE_CHILD) dialogs with parents are marked as child
  69   // widgets to prevent top-level window behavior (independent movement, etc).
  70   params.child = parent && (delegate->GetModalType() == ui::MODAL_TYPE_CHILD);
  71   widget->Init(params);
  72   return widget;
  73 }
  74
  75 View* DialogDelegate::CreateExtraView() {
  76   return NULL;
  77 }
  78
  79 View* DialogDelegate::CreateTitlebarExtraView() {
  80   return NULL;
  81 }
  82
  83 View* DialogDelegate::CreateFootnoteView() {
  84   return NULL;
  85 }
  86
  87 bool DialogDelegate::Cancel() {
  88   return true;
  89 }
  90
  91 bool DialogDelegate::Accept(bool window_closing) {
  92   return Accept();
  93 }
  94
  95 bool DialogDelegate::Accept() {
  96   return true;
  97 }
  98
  99 bool DialogDelegate::Close() {
 100   int buttons = GetDialogButtons();
 101   if ((buttons & ui::DIALOG_BUTTON_CANCEL) ||
 102       (buttons == ui::DIALOG_BUTTON_NONE)) {
 103     return Cancel();
 104   }
 105   return Accept(true);
 106 }
 107
 108 base::string16 DialogDelegate::GetDialogLabel() const {
 109   return base::string16();
 110 }
 111
 112 base::string16 DialogDelegate::GetDialogTitle() const {
 113   return GetWindowTitle();
 114 }
 115
 116 int DialogDelegate::GetDialogButtons() const {
 117   return ui::DIALOG_BUTTON_OK | ui::DIALOG_BUTTON_CANCEL;
 118 }
 119
 120 int DialogDelegate::GetDefaultDialogButton() const {
 121   if (GetDialogButtons() & ui::DIALOG_BUTTON_OK)
 122     return ui::DIALOG_BUTTON_OK;
 123   if (GetDialogButtons() & ui::DIALOG_BUTTON_CANCEL)
 124     return ui::DIALOG_BUTTON_CANCEL;
 125   return ui::DIALOG_BUTTON_NONE;
 126 }
 127
 128 bool DialogDelegate::ShouldDefaultButtonBeBlue() const {
 129   return false;
 130 }
 131
 132 base::string16 DialogDelegate::GetDialogButtonLabel(
 133     ui::DialogButton button) const {
 134   if (button == ui::DIALOG_BUTTON_OK)
 135     return l10n_util::GetStringUTF16(IDS_APP_OK);
 136   if (button == ui::DIALOG_BUTTON_CANCEL) {
 137     if (GetDialogButtons() & ui::DIALOG_BUTTON_OK)
 138       return l10n_util::GetStringUTF16(IDS_APP_CANCEL);
 139     return l10n_util::GetStringUTF16(IDS_APP_CLOSE);
 140   }
 141   NOTREACHED();
 142   return base::string16();
 143 }
 144
 145 bool DialogDelegate::IsDialogButtonEnabled(ui::DialogButton button) const {
 146   return true;
 147 }
 148
 149 View* DialogDelegate::GetInitiallyFocusedView() {
 150   // Focus the default button if any.
 151   const DialogClientView* dcv = GetDialogClientView();
 152   int default_button = GetDefaultDialogButton();
 153   if (default_button == ui::DIALOG_BUTTON_NONE)
 154     return NULL;
 155
 156   if ((default_button & GetDialogButtons()) == 0) {
 157     // The default button is a button we don't have.
 158     NOTREACHED();
 159     return NULL;
 160   }
 161
 162   if (default_button & ui::DIALOG_BUTTON_OK)
 163     return dcv->ok_button();
 164   if (default_button & ui::DIALOG_BUTTON_CANCEL)
 165     return dcv->cancel_button();
 166   return NULL;
 167 }
 168
 169 DialogDelegate* DialogDelegate::AsDialogDelegate() {
 170   return this;
 171 }
 172
 173 ClientView* DialogDelegate::CreateClientView(Widget* widget) {
 174   return new DialogClientView(widget, GetContentsView());
 175 }
 176
 177 NonClientFrameView* DialogDelegate::CreateNonClientFrameView(Widget* widget) {
 178   if (UseNewStyleForThisDialog())
 179     return CreateDialogFrameView(widget);
 180   return WidgetDelegate::CreateNonClientFrameView(widget);
 181 }
 182
 183 // static
 184 NonClientFrameView* DialogDelegate::CreateDialogFrameView(Widget* widget) {
 185   BubbleFrameView* frame = new BubbleFrameView(gfx::Insets());
 186   scoped_ptr<BubbleBorder> border(new BubbleBorder(
 187       BubbleBorder::FLOAT, BubbleBorder::SMALL_SHADOW, SK_ColorRED));
 188   border->set_use_theme_background_color(true);
 189   frame->SetBubbleBorder(border.Pass());
 190   DialogDelegate* delegate = widget->widget_delegate()->AsDialogDelegate();
 191   if (delegate) {
 192     View* titlebar_view = delegate->CreateTitlebarExtraView();
 193     if (titlebar_view)
 194       frame->SetTitlebarExtraView(titlebar_view);
 195   }
 196   return frame;
 197 }
 198
 199 bool DialogDelegate::UseNewStyleForThisDialog() const {
 200   return supports_new_style_;
 201 }
 202
 203 const DialogClientView* DialogDelegate::GetDialogClientView() const {
 204   return GetWidget()->client_view()->AsDialogClientView();
 205 }
 206
 207 DialogClientView* DialogDelegate::GetDialogClientView() {
 208   return GetWidget()->client_view()->AsDialogClientView();
 209 }
 210
 211 ui::AXRole DialogDelegate::GetAccessibleWindowRole() const {
 212   return ui::AX_ROLE_DIALOG;
 213 }
 214
 215 ////////////////////////////////////////////////////////////////////////////////
 216 // DialogDelegateView:
 217
 218 DialogDelegateView::DialogDelegateView() {
 219   // A WidgetDelegate should be deleted on DeleteDelegate.
 220   set_owned_by_client();
 221 }
 222
 223 DialogDelegateView::~DialogDelegateView() {}
 224
 225 void DialogDelegateView::DeleteDelegate() {
 226   delete this;
 227 }
 228
 229 Widget* DialogDelegateView::GetWidget() {
 230   return View::GetWidget();
 231 }
 232
 233 const Widget* DialogDelegateView::GetWidget() const {
 234   return View::GetWidget();
 235 }
 236
 237 View* DialogDelegateView::GetContentsView() {
 238   return this;
 239 }
 240
 241 }  // namespace views