ui/views/widget/widget_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/widget/widget_delegate.h"
   6
   7 #include "base/strings/utf_string_conversions.h"
   8 #include "ui/gfx/image/image_skia.h"
   9 #include "ui/views/bubble/bubble_delegate.h"
  10 #include "ui/views/view.h"
  11 #include "ui/views/views_delegate.h"
  12 #include "ui/views/widget/widget.h"
  13 #include "ui/views/window/client_view.h"
  14
  15 namespace views {
  16
  17 ////////////////////////////////////////////////////////////////////////////////
  18 // WidgetDelegate:
  19
  20 WidgetDelegate::WidgetDelegate() : default_contents_view_(NULL) {
  21 }
  22
  23 void WidgetDelegate::OnWidgetMove() {
  24 }
  25
  26 void WidgetDelegate::OnDisplayChanged() {
  27 }
  28
  29 void WidgetDelegate::OnWorkAreaChanged() {
  30 }
  31
  32 View* WidgetDelegate::GetInitiallyFocusedView() {
  33   return NULL;
  34 }
  35
  36 BubbleDelegateView* WidgetDelegate::AsBubbleDelegate() {
  37   return NULL;
  38 }
  39
  40 DialogDelegate* WidgetDelegate::AsDialogDelegate() {
  41   return NULL;
  42 }
  43
  44 bool WidgetDelegate::CanResize() const {
  45   return false;
  46 }
  47
  48 bool WidgetDelegate::CanMaximize() const {
  49   return false;
  50 }
  51
  52 bool WidgetDelegate::CanActivate() const {
  53   return true;
  54 }
  55
  56 ui::ModalType WidgetDelegate::GetModalType() const {
  57   return ui::MODAL_TYPE_NONE;
  58 }
  59
  60 ui::AccessibilityTypes::Role WidgetDelegate::GetAccessibleWindowRole() const {
  61   return ui::AccessibilityTypes::ROLE_WINDOW;
  62 }
  63
  64 string16 WidgetDelegate::GetAccessibleWindowTitle() const {
  65   return GetWindowTitle();
  66 }
  67
  68 string16 WidgetDelegate::GetWindowTitle() const {
  69   return string16();
  70 }
  71
  72 bool WidgetDelegate::ShouldShowWindowTitle() const {
  73   return true;
  74 }
  75
  76 bool WidgetDelegate::ShouldShowCloseButton() const {
  77   return true;
  78 }
  79
  80 bool WidgetDelegate::ShouldHandleSystemCommands() const {
  81   const Widget* widget = GetWidget();
  82   if (!widget)
  83     return false;
  84
  85   return widget->non_client_view() != NULL;
  86 }
  87
  88 gfx::ImageSkia WidgetDelegate::GetWindowAppIcon() {
  89   // Use the window icon as app icon by default.
  90   return GetWindowIcon();
  91 }
  92
  93 // Returns the icon to be displayed in the window.
  94 gfx::ImageSkia WidgetDelegate::GetWindowIcon() {
  95   return gfx::ImageSkia();
  96 }
  97
  98 bool WidgetDelegate::ShouldShowWindowIcon() const {
  99   return false;
 100 }
 101
 102 bool WidgetDelegate::ExecuteWindowsCommand(int command_id) {
 103   return false;
 104 }
 105
 106 std::string WidgetDelegate::GetWindowName() const {
 107   return std::string();
 108 }
 109
 110 void WidgetDelegate::SaveWindowPlacement(const gfx::Rect& bounds,
 111                                          ui::WindowShowState show_state) {
 112   std::string window_name = GetWindowName();
 113   if (!ViewsDelegate::views_delegate || window_name.empty())
 114     return;
 115
 116   ViewsDelegate::views_delegate->SaveWindowPlacement(
 117       GetWidget(), window_name, bounds, show_state);
 118 }
 119
 120 bool WidgetDelegate::GetSavedWindowPlacement(
 121     const Widget* widget,
 122     gfx::Rect* bounds,
 123     ui::WindowShowState* show_state) const {
 124   std::string window_name = GetWindowName();
 125   if (!ViewsDelegate::views_delegate || window_name.empty())
 126     return false;
 127
 128   return ViewsDelegate::views_delegate->GetSavedWindowPlacement(
 129       widget, window_name, bounds, show_state);
 130 }
 131
 132 bool WidgetDelegate::ShouldRestoreWindowSize() const {
 133   return true;
 134 }
 135
 136 View* WidgetDelegate::GetContentsView() {
 137   if (!default_contents_view_)
 138     default_contents_view_ = new View;
 139   return default_contents_view_;
 140 }
 141
 142 ClientView* WidgetDelegate::CreateClientView(Widget* widget) {
 143   return new ClientView(widget, GetContentsView());
 144 }
 145
 146 NonClientFrameView* WidgetDelegate::CreateNonClientFrameView(Widget* widget) {
 147   return NULL;
 148 }
 149
 150 View* WidgetDelegate::CreateOverlayView() {
 151   return NULL;
 152 }
 153
 154 bool WidgetDelegate::WillProcessWorkAreaChange() const {
 155   return false;
 156 }
 157
 158 bool WidgetDelegate::WidgetHasHitTestMask() const {
 159   return false;
 160 }
 161
 162 void WidgetDelegate::GetWidgetHitTestMask(gfx::Path* mask) const {
 163   DCHECK(mask);
 164 }
 165
 166 bool WidgetDelegate::ShouldAdvanceFocusToTopLevelWidget() const {
 167   return false;
 168 }
 169
 170 bool WidgetDelegate::ShouldDescendIntoChildForEventHandling(
 171     gfx::NativeView child,
 172     const gfx::Point& location) {
 173   return true;
 174 }
 175
 176 ////////////////////////////////////////////////////////////////////////////////
 177 // WidgetDelegateView:
 178
 179 WidgetDelegateView::WidgetDelegateView() {
 180   // A WidgetDelegate should be deleted on DeleteDelegate.
 181   set_owned_by_client();
 182 }
 183
 184 WidgetDelegateView::~WidgetDelegateView() {
 185 }
 186
 187 void WidgetDelegateView::DeleteDelegate() {
 188   delete this;
 189 }
 190
 191 Widget* WidgetDelegateView::GetWidget() {
 192   return View::GetWidget();
 193 }
 194
 195 const Widget* WidgetDelegateView::GetWidget() const {
 196   return View::GetWidget();
 197 }
 198
 199 }  // namespace views