widget_delegate.cc revision cedac228d2dd51db4b79ea1e72c7f249408ee061 
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
15namespace views {
16
17////////////////////////////////////////////////////////////////////////////////
18// WidgetDelegate:
19
20WidgetDelegate::WidgetDelegate()
21    : default_contents_view_(NULL),
22      can_activate_(true) {
23}
24
25void WidgetDelegate::OnWidgetMove() {
26}
27
28void WidgetDelegate::OnDisplayChanged() {
29}
30
31void WidgetDelegate::OnWorkAreaChanged() {
32}
33
34View* WidgetDelegate::GetInitiallyFocusedView() {
35  return NULL;
36}
37
38BubbleDelegateView* WidgetDelegate::AsBubbleDelegate() {
39  return NULL;
40}
41
42DialogDelegate* WidgetDelegate::AsDialogDelegate() {
43  return NULL;
44}
45
46bool WidgetDelegate::CanResize() const {
47  return false;
48}
49
50bool WidgetDelegate::CanMaximize() const {
51  return false;
52}
53
54bool WidgetDelegate::CanActivate() const {
55  return can_activate_;
56}
57
58ui::ModalType WidgetDelegate::GetModalType() const {
59  return ui::MODAL_TYPE_NONE;
60}
61
62ui::AXRole WidgetDelegate::GetAccessibleWindowRole() const {
63  return ui::AX_ROLE_WINDOW;
64}
65
66base::string16 WidgetDelegate::GetAccessibleWindowTitle() const {
67  return GetWindowTitle();
68}
69
70base::string16 WidgetDelegate::GetWindowTitle() const {
71  return base::string16();
72}
73
74bool WidgetDelegate::ShouldShowWindowTitle() const {
75  return true;
76}
77
78bool WidgetDelegate::ShouldShowCloseButton() const {
79  return true;
80}
81
82bool WidgetDelegate::ShouldHandleSystemCommands() const {
83  const Widget* widget = GetWidget();
84  if (!widget)
85    return false;
86
87  return widget->non_client_view() != NULL;
88}
89
90gfx::ImageSkia WidgetDelegate::GetWindowAppIcon() {
91  // Use the window icon as app icon by default.
92  return GetWindowIcon();
93}
94
95// Returns the icon to be displayed in the window.
96gfx::ImageSkia WidgetDelegate::GetWindowIcon() {
97  return gfx::ImageSkia();
98}
99
100bool WidgetDelegate::ShouldShowWindowIcon() const {
101  return false;
102}
103
104bool WidgetDelegate::ExecuteWindowsCommand(int command_id) {
105  return false;
106}
107
108std::string WidgetDelegate::GetWindowName() const {
109  return std::string();
110}
111
112void WidgetDelegate::SaveWindowPlacement(const gfx::Rect& bounds,
113                                         ui::WindowShowState show_state) {
114  std::string window_name = GetWindowName();
115  if (!ViewsDelegate::views_delegate || window_name.empty())
116    return;
117
118  ViewsDelegate::views_delegate->SaveWindowPlacement(
119      GetWidget(), window_name, bounds, show_state);
120}
121
122bool WidgetDelegate::GetSavedWindowPlacement(
123    const Widget* widget,
124    gfx::Rect* bounds,
125    ui::WindowShowState* show_state) const {
126  std::string window_name = GetWindowName();
127  if (!ViewsDelegate::views_delegate || window_name.empty())
128    return false;
129
130  return ViewsDelegate::views_delegate->GetSavedWindowPlacement(
131      widget, window_name, bounds, show_state);
132}
133
134bool WidgetDelegate::ShouldRestoreWindowSize() const {
135  return true;
136}
137
138View* WidgetDelegate::GetContentsView() {
139  if (!default_contents_view_)
140    default_contents_view_ = new View;
141  return default_contents_view_;
142}
143
144ClientView* WidgetDelegate::CreateClientView(Widget* widget) {
145  return new ClientView(widget, GetContentsView());
146}
147
148NonClientFrameView* WidgetDelegate::CreateNonClientFrameView(Widget* widget) {
149  return NULL;
150}
151
152View* WidgetDelegate::CreateOverlayView() {
153  return NULL;
154}
155
156bool WidgetDelegate::WillProcessWorkAreaChange() const {
157  return false;
158}
159
160bool WidgetDelegate::WidgetHasHitTestMask() const {
161  return false;
162}
163
164void WidgetDelegate::GetWidgetHitTestMask(gfx::Path* mask) const {
165  DCHECK(mask);
166}
167
168bool WidgetDelegate::ShouldAdvanceFocusToTopLevelWidget() const {
169  return false;
170}
171
172bool WidgetDelegate::ShouldDescendIntoChildForEventHandling(
173    gfx::NativeView child,
174    const gfx::Point& location) {
175  return true;
176}
177
178////////////////////////////////////////////////////////////////////////////////
179// WidgetDelegateView:
180
181WidgetDelegateView::WidgetDelegateView() {
182  // A WidgetDelegate should be deleted on DeleteDelegate.
183  set_owned_by_client();
184}
185
186WidgetDelegateView::~WidgetDelegateView() {
187}
188
189void WidgetDelegateView::DeleteDelegate() {
190  delete this;
191}
192
193Widget* WidgetDelegateView::GetWidget() {
194  return View::GetWidget();
195}
196
197const Widget* WidgetDelegateView::GetWidget() const {
198  return View::GetWidget();
199}
200
201}  // namespace views
202