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| 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/bubble/bubble_delegate.h" | |
| 6 | |
| 7 #include "build/build_config.h" | |
| 8 #include "ui/accessibility/ax_view_state.h" | |
| 9 #include "ui/base/default_style.h" | |
| 10 #include "ui/base/resource/resource_bundle.h" | |
| 11 #include "ui/gfx/color_utils.h" | |
| 12 #include "ui/gfx/geometry/rect.h" | |
| 13 #include "ui/native_theme/native_theme.h" | |
| 14 #include "ui/views/bubble/bubble_frame_view.h" | |
| 15 #include "ui/views/focus/view_storage.h" | |
| 16 #include "ui/views/layout/layout_constants.h" | |
| 17 #include "ui/views/widget/widget.h" | |
| 18 #include "ui/views/widget/widget_observer.h" | |
| 19 | |
| 20 #if defined(OS_WIN) | |
| 21 #include "ui/base/win/shell.h" | |
| 22 #endif | |
| 23 | |
| 24 namespace views { | |
| 25 | |
| 26 namespace { | |
| 27 | |
| 28 // Create a widget to host the bubble. | |
| 29 Widget* CreateBubbleWidget(BubbleDelegateView* bubble) { | |
| 30 Widget* bubble_widget = new Widget(); | |
| 31 Widget::InitParams bubble_params(Widget::InitParams::TYPE_BUBBLE); | |
| 32 bubble_params.delegate = bubble; | |
| 33 bubble_params.opacity = Widget::InitParams::TRANSLUCENT_WINDOW; | |
| 34 bubble_params.accept_events = bubble->accept_events(); | |
| 35 if (bubble->parent_window()) | |
| 36 bubble_params.parent = bubble->parent_window(); | |
| 37 else if (bubble->anchor_widget()) | |
| 38 bubble_params.parent = bubble->anchor_widget()->GetNativeView(); | |
| 39 bubble_params.activatable = bubble->CanActivate() ? | |
| 40 Widget::InitParams::ACTIVATABLE_YES : Widget::InitParams::ACTIVATABLE_NO; | |
| 41 bubble->OnBeforeBubbleWidgetInit(&bubble_params, bubble_widget); | |
| 42 bubble_widget->Init(bubble_params); | |
| 43 if (bubble_params.parent) | |
| 44 bubble_widget->StackAbove(bubble_params.parent); | |
| 45 return bubble_widget; | |
| 46 } | |
| 47 | |
| 48 } // namespace | |
| 49 | |
| 50 // static | |
| 51 const char BubbleDelegateView::kViewClassName[] = "BubbleDelegateView"; | |
| 52 | |
| 53 BubbleDelegateView::BubbleDelegateView() | |
| 54 : BubbleDelegateView(nullptr, BubbleBorder::TOP_LEFT) {} | |
| 55 | |
| 56 BubbleDelegateView::BubbleDelegateView(View* anchor_view, | |
| 57 BubbleBorder::Arrow arrow) | |
| 58 : close_on_esc_(true), | |
| 59 close_on_deactivate_(true), | |
| 60 anchor_view_storage_id_(ViewStorage::GetInstance()->CreateStorageID()), | |
| 61 anchor_widget_(NULL), | |
| 62 arrow_(arrow), | |
| 63 shadow_(BubbleBorder::SMALL_SHADOW), | |
| 64 color_explicitly_set_(false), | |
| 65 margins_(kPanelVertMargin, | |
| 66 kPanelHorizMargin, | |
| 67 kPanelVertMargin, | |
| 68 kPanelHorizMargin), | |
| 69 accept_events_(true), | |
| 70 border_accepts_events_(true), | |
| 71 adjust_if_offscreen_(true), | |
| 72 parent_window_(NULL), | |
| 73 close_reason_(CloseReason::UNKNOWN) { | |
| 74 if (anchor_view) | |
| 75 SetAnchorView(anchor_view); | |
| 76 AddAccelerator(ui::Accelerator(ui::VKEY_ESCAPE, ui::EF_NONE)); | |
| 77 UpdateColorsFromTheme(GetNativeTheme()); | |
| 78 } | |
| 79 | |
| 80 BubbleDelegateView::~BubbleDelegateView() { | |
| 81 if (GetWidget()) | |
| 82 GetWidget()->RemoveObserver(this); | |
| 83 SetLayoutManager(NULL); | |
| 84 SetAnchorView(NULL); | |
| 85 } | |
| 86 | |
| 87 // static | |
| 88 Widget* BubbleDelegateView::CreateBubble(BubbleDelegateView* bubble_delegate) { | |
| 89 bubble_delegate->Init(); | |
| 90 // Get the latest anchor widget from the anchor view at bubble creation time. | |
| 91 bubble_delegate->SetAnchorView(bubble_delegate->GetAnchorView()); | |
| 92 Widget* bubble_widget = CreateBubbleWidget(bubble_delegate); | |
| 93 | |
| 94 #if defined(OS_WIN) | |
| 95 // If glass is enabled, the bubble is allowed to extend outside the bounds of | |
| 96 // the parent frame and let DWM handle compositing. If not, then we don't | |
| 97 // want to allow the bubble to extend the frame because it will be clipped. | |
| 98 bubble_delegate->set_adjust_if_offscreen(ui::win::IsAeroGlassEnabled()); | |
| 99 #elif (defined(OS_LINUX) && !defined(OS_CHROMEOS)) || defined(OS_MACOSX) | |
| 100 // Linux clips bubble windows that extend outside their parent window bounds. | |
| 101 // Mac never adjusts. | |
| 102 bubble_delegate->set_adjust_if_offscreen(false); | |
| 103 #endif | |
| 104 | |
| 105 bubble_delegate->SizeToContents(); | |
| 106 bubble_widget->AddObserver(bubble_delegate); | |
| 107 return bubble_widget; | |
| 108 } | |
| 109 | |
| 110 BubbleDelegateView* BubbleDelegateView::AsBubbleDelegate() { | |
| 111 return this; | |
| 112 } | |
| 113 | |
| 114 bool BubbleDelegateView::ShouldShowCloseButton() const { | |
| 115 return false; | |
| 116 } | |
| 117 | |
| 118 View* BubbleDelegateView::GetContentsView() { | |
| 119 return this; | |
| 120 } | |
| 121 | |
| 122 NonClientFrameView* BubbleDelegateView::CreateNonClientFrameView( | |
| 123 Widget* widget) { | |
| 124 BubbleFrameView* frame = new BubbleFrameView( | |
| 125 gfx::Insets(kPanelVertMargin, kPanelHorizMargin, 0, kPanelHorizMargin), | |
| 126 margins()); | |
| 127 // Note: In CreateBubble, the call to SizeToContents() will cause | |
| 128 // the relayout that this call requires. | |
| 129 frame->SetTitleFontList(GetTitleFontList()); | |
| 130 frame->SetFootnoteView(CreateFootnoteView()); | |
| 131 | |
| 132 BubbleBorder::Arrow adjusted_arrow = arrow(); | |
| 133 if (base::i18n::IsRTL()) | |
| 134 adjusted_arrow = BubbleBorder::horizontal_mirror(adjusted_arrow); | |
| 135 frame->SetBubbleBorder(std::unique_ptr<BubbleBorder>( | |
| 136 new BubbleBorder(adjusted_arrow, shadow(), color()))); | |
| 137 return frame; | |
| 138 } | |
| 139 | |
| 140 void BubbleDelegateView::GetAccessibleState(ui::AXViewState* state) { | |
| 141 state->role = ui::AX_ROLE_DIALOG; | |
| 142 } | |
| 143 | |
| 144 const char* BubbleDelegateView::GetClassName() const { | |
| 145 return kViewClassName; | |
| 146 } | |
| 147 | |
| 148 void BubbleDelegateView::OnWidgetClosing(Widget* widget) { | |
| 149 DCHECK(GetBubbleFrameView()); | |
| 150 if (widget == GetWidget() && close_reason_ == CloseReason::UNKNOWN && | |
| 151 GetBubbleFrameView()->close_button_clicked()) { | |
| 152 close_reason_ = CloseReason::CLOSE_BUTTON; | |
| 153 } | |
| 154 } | |
| 155 | |
| 156 void BubbleDelegateView::OnWidgetDestroying(Widget* widget) { | |
| 157 if (anchor_widget() == widget) | |
| 158 SetAnchorView(NULL); | |
| 159 } | |
| 160 | |
| 161 void BubbleDelegateView::OnWidgetVisibilityChanging(Widget* widget, | |
| 162 bool visible) { | |
| 163 #if defined(OS_WIN) | |
| 164 // On Windows we need to handle this before the bubble is visible or hidden. | |
| 165 // Please see the comment on the OnWidgetVisibilityChanging function. On | |
| 166 // other platforms it is fine to handle it after the bubble is shown/hidden. | |
| 167 HandleVisibilityChanged(widget, visible); | |
| 168 #endif | |
| 169 } | |
| 170 | |
| 171 void BubbleDelegateView::OnWidgetVisibilityChanged(Widget* widget, | |
| 172 bool visible) { | |
| 173 #if !defined(OS_WIN) | |
| 174 HandleVisibilityChanged(widget, visible); | |
| 175 #endif | |
| 176 } | |
| 177 | |
| 178 void BubbleDelegateView::OnWidgetActivationChanged(Widget* widget, | |
| 179 bool active) { | |
| 180 if (close_on_deactivate() && widget == GetWidget() && !active) { | |
| 181 if (close_reason_ == CloseReason::UNKNOWN) | |
| 182 close_reason_ = CloseReason::DEACTIVATION; | |
| 183 GetWidget()->Close(); | |
| 184 } | |
| 185 } | |
| 186 | |
| 187 void BubbleDelegateView::OnWidgetBoundsChanged(Widget* widget, | |
| 188 const gfx::Rect& new_bounds) { | |
| 189 if (GetBubbleFrameView() && anchor_widget() == widget) | |
| 190 SizeToContents(); | |
| 191 } | |
| 192 | |
| 193 View* BubbleDelegateView::GetAnchorView() const { | |
| 194 return ViewStorage::GetInstance()->RetrieveView(anchor_view_storage_id_); | |
| 195 } | |
| 196 | |
| 197 gfx::Rect BubbleDelegateView::GetAnchorRect() const { | |
| 198 if (!GetAnchorView()) | |
| 199 return anchor_rect_; | |
| 200 | |
| 201 anchor_rect_ = GetAnchorView()->GetBoundsInScreen(); | |
| 202 anchor_rect_.Inset(anchor_view_insets_); | |
| 203 return anchor_rect_; | |
| 204 } | |
| 205 | |
| 206 void BubbleDelegateView::OnBeforeBubbleWidgetInit(Widget::InitParams* params, | |
| 207 Widget* widget) const { | |
| 208 } | |
| 209 | |
| 210 View* BubbleDelegateView::CreateFootnoteView() { | |
| 211 return nullptr; | |
| 212 } | |
| 213 | |
| 214 void BubbleDelegateView::UseCompactMargins() { | |
| 215 const int kCompactMargin = 6; | |
| 216 margins_.Set(kCompactMargin, kCompactMargin, kCompactMargin, kCompactMargin); | |
| 217 } | |
| 218 | |
| 219 void BubbleDelegateView::SetAlignment(BubbleBorder::BubbleAlignment alignment) { | |
| 220 GetBubbleFrameView()->bubble_border()->set_alignment(alignment); | |
| 221 SizeToContents(); | |
| 222 } | |
| 223 | |
| 224 void BubbleDelegateView::SetArrowPaintType( | |
| 225 BubbleBorder::ArrowPaintType paint_type) { | |
| 226 GetBubbleFrameView()->bubble_border()->set_paint_arrow(paint_type); | |
| 227 SizeToContents(); | |
| 228 } | |
| 229 | |
| 230 void BubbleDelegateView::OnAnchorBoundsChanged() { | |
| 231 SizeToContents(); | |
| 232 } | |
| 233 | |
| 234 bool BubbleDelegateView::AcceleratorPressed( | |
| 235 const ui::Accelerator& accelerator) { | |
| 236 if (!close_on_esc() || accelerator.key_code() != ui::VKEY_ESCAPE) | |
| 237 return false; | |
| 238 close_reason_ = CloseReason::ESCAPE; | |
| 239 GetWidget()->Close(); | |
| 240 return true; | |
| 241 } | |
| 242 | |
| 243 void BubbleDelegateView::OnNativeThemeChanged(const ui::NativeTheme* theme) { | |
| 244 UpdateColorsFromTheme(theme); | |
| 245 } | |
| 246 | |
| 247 void BubbleDelegateView::Init() {} | |
| 248 | |
| 249 void BubbleDelegateView::SetAnchorView(View* anchor_view) { | |
| 250 // When the anchor view gets set the associated anchor widget might | |
| 251 // change as well. | |
| 252 if (!anchor_view || anchor_widget() != anchor_view->GetWidget()) { | |
| 253 if (anchor_widget()) { | |
| 254 anchor_widget_->RemoveObserver(this); | |
| 255 anchor_widget_ = NULL; | |
| 256 } | |
| 257 if (anchor_view) { | |
| 258 anchor_widget_ = anchor_view->GetWidget(); | |
| 259 if (anchor_widget_) | |
| 260 anchor_widget_->AddObserver(this); | |
| 261 } | |
| 262 } | |
| 263 | |
| 264 // Remove the old storage item and set the new (if there is one). | |
| 265 ViewStorage* view_storage = ViewStorage::GetInstance(); | |
| 266 if (view_storage->RetrieveView(anchor_view_storage_id_)) | |
| 267 view_storage->RemoveView(anchor_view_storage_id_); | |
| 268 if (anchor_view) | |
| 269 view_storage->StoreView(anchor_view_storage_id_, anchor_view); | |
| 270 | |
| 271 // Do not update anchoring for NULL views; this could indicate that our | |
| 272 // NativeWindow is being destroyed, so it would be dangerous for us to update | |
| 273 // our anchor bounds at that point. (It's safe to skip this, since if we were | |
| 274 // to update the bounds when |anchor_view| is NULL, the bubble won't move.) | |
| 275 if (anchor_view && GetWidget()) | |
| 276 OnAnchorBoundsChanged(); | |
| 277 } | |
| 278 | |
| 279 void BubbleDelegateView::SetAnchorRect(const gfx::Rect& rect) { | |
| 280 anchor_rect_ = rect; | |
| 281 if (GetWidget()) | |
| 282 OnAnchorBoundsChanged(); | |
| 283 } | |
| 284 | |
| 285 void BubbleDelegateView::SizeToContents() { | |
| 286 GetWidget()->SetBounds(GetBubbleBounds()); | |
| 287 } | |
| 288 | |
| 289 BubbleFrameView* BubbleDelegateView::GetBubbleFrameView() const { | |
| 290 const NonClientView* view = | |
| 291 GetWidget() ? GetWidget()->non_client_view() : NULL; | |
| 292 return view ? static_cast<BubbleFrameView*>(view->frame_view()) : NULL; | |
| 293 } | |
| 294 | |
| 295 gfx::Rect BubbleDelegateView::GetBubbleBounds() { | |
| 296 // The argument rect has its origin at the bubble's arrow anchor point; | |
| 297 // its size is the preferred size of the bubble's client view (this view). | |
| 298 bool anchor_minimized = anchor_widget() && anchor_widget()->IsMinimized(); | |
| 299 return GetBubbleFrameView()->GetUpdatedWindowBounds(GetAnchorRect(), | |
| 300 GetPreferredSize(), adjust_if_offscreen_ && !anchor_minimized); | |
| 301 } | |
| 302 | |
| 303 const gfx::FontList& BubbleDelegateView::GetTitleFontList() const { | |
| 304 ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance(); | |
| 305 return rb.GetFontListWithDelta(ui::kTitleFontSizeDelta); | |
| 306 } | |
| 307 | |
| 308 void BubbleDelegateView::UpdateColorsFromTheme(const ui::NativeTheme* theme) { | |
| 309 if (!color_explicitly_set_) | |
| 310 color_ = theme->GetSystemColor(ui::NativeTheme::kColorId_BubbleBackground); | |
| 311 set_background(Background::CreateSolidBackground(color())); | |
| 312 BubbleFrameView* frame_view = GetBubbleFrameView(); | |
| 313 if (frame_view) | |
| 314 frame_view->bubble_border()->set_background_color(color()); | |
| 315 } | |
| 316 | |
| 317 void BubbleDelegateView::HandleVisibilityChanged(Widget* widget, bool visible) { | |
| 318 if (widget == GetWidget() && anchor_widget() && | |
| 319 anchor_widget()->GetTopLevelWidget()) { | |
| 320 anchor_widget()->GetTopLevelWidget()->SetAlwaysRenderAsActive(visible); | |
| 321 } | |
| 322 | |
| 323 // Fire AX_EVENT_ALERT for bubbles marked as AX_ROLE_ALERT_DIALOG; this | |
| 324 // instructs accessibility tools to read the bubble in its entirety rather | |
| 325 // than just its title and initially focused view. See | |
| 326 // http://crbug.com/474622 for details. | |
| 327 if (widget == GetWidget() && visible) { | |
| 328 ui::AXViewState state; | |
| 329 GetAccessibleState(&state); | |
| 330 if (state.role == ui::AX_ROLE_ALERT_DIALOG) | |
| 331 NotifyAccessibilityEvent(ui::AX_EVENT_ALERT, true); | |
| 332 } | |
| 333 } | |
| 334 | |
| 335 } // namespace views | |
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Chromium Code Reviews
Issue 1922813002:
Vanquish views::BubbleDelegate{View,} (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master