| File: | var/lib/jenkins/workspace/firefox-scan-build/layout/xul/nsMenuPopupFrame.cpp |
| Warning: | line 2039, column 5 Value stored to 'stringLength' is never read |
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| 1 | /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| 2 | /* vim: set ts=8 sts=2 et sw=2 tw=80: */ |
| 3 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| 4 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| 5 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| 6 | |
| 7 | #include "nsMenuPopupFrame.h" |
| 8 | #include "LayoutConstants.h" |
| 9 | #include "XULButtonElement.h" |
| 10 | #include "XULPopupElement.h" |
| 11 | #include "mozilla/dom/XULPopupElement.h" |
| 12 | #include "nsGkAtoms.h" |
| 13 | #include "nsIContent.h" |
| 14 | #include "nsIFrameInlines.h" |
| 15 | #include "nsAtom.h" |
| 16 | #include "nsPresContext.h" |
| 17 | #include "mozilla/ComputedStyle.h" |
| 18 | #include "nsCSSRendering.h" |
| 19 | #include "nsNameSpaceManager.h" |
| 20 | #include "nsIFrameInlines.h" |
| 21 | #include "nsViewManager.h" |
| 22 | #include "nsWidgetsCID.h" |
| 23 | #include "nsPIDOMWindow.h" |
| 24 | #include "nsFrameManager.h" |
| 25 | #include "mozilla/dom/Document.h" |
| 26 | #include "nsRect.h" |
| 27 | #include "nsIPopupContainer.h" |
| 28 | #include "nsIDocShell.h" |
| 29 | #include "nsReadableUtils.h" |
| 30 | #include "nsUnicharUtils.h" |
| 31 | #include "nsLayoutUtils.h" |
| 32 | #include "nsContentUtils.h" |
| 33 | #include "nsCSSFrameConstructor.h" |
| 34 | #include "nsPIWindowRoot.h" |
| 35 | #include "nsIReflowCallback.h" |
| 36 | #include "nsIDocShellTreeOwner.h" |
| 37 | #include "nsIBaseWindow.h" |
| 38 | #include "nsISound.h" |
| 39 | #include "nsIScreenManager.h" |
| 40 | #include "nsServiceManagerUtils.h" |
| 41 | #include "nsStyleConsts.h" |
| 42 | #include "nsStyleStructInlines.h" |
| 43 | #include "nsTransitionManager.h" |
| 44 | #include "nsDisplayList.h" |
| 45 | #include "nsIDOMXULSelectCntrlEl.h" |
| 46 | #include "mozilla/widget/ScreenManager.h" |
| 47 | #include "mozilla/AnimationUtils.h" |
| 48 | #include "mozilla/BasePrincipal.h" |
| 49 | #include "mozilla/EventDispatcher.h" |
| 50 | #include "mozilla/EventStateManager.h" |
| 51 | #include "mozilla/Preferences.h" |
| 52 | #include "mozilla/LookAndFeel.h" |
| 53 | #include "mozilla/MouseEvents.h" |
| 54 | #include "mozilla/PresShell.h" |
| 55 | #include "mozilla/ScrollContainerFrame.h" |
| 56 | #include "mozilla/Services.h" |
| 57 | #include "mozilla/dom/BrowserParent.h" |
| 58 | #include "mozilla/dom/Element.h" |
| 59 | #include "mozilla/dom/Event.h" |
| 60 | #include "mozilla/dom/KeyboardEvent.h" |
| 61 | #include "mozilla/dom/KeyboardEventBinding.h" |
| 62 | #include <algorithm> |
| 63 | |
| 64 | #include "X11UndefineNone.h" |
| 65 | #include "nsXULPopupManager.h" |
| 66 | |
| 67 | using namespace mozilla; |
| 68 | using mozilla::dom::Document; |
| 69 | using mozilla::dom::Element; |
| 70 | using mozilla::dom::Event; |
| 71 | using mozilla::dom::XULButtonElement; |
| 72 | |
| 73 | int8_t nsMenuPopupFrame::sDefaultLevelIsTop = -1; |
| 74 | |
| 75 | TimeStamp nsMenuPopupFrame::sLastKeyTime; |
| 76 | |
| 77 | #ifdef MOZ_WAYLAND1 |
| 78 | # include "mozilla/WidgetUtilsGtk.h" |
| 79 | # define IS_WAYLAND_DISPLAY()mozilla::widget::GdkIsWaylandDisplay() mozilla::widget::GdkIsWaylandDisplay() |
| 80 | extern mozilla::LazyLogModule gWidgetPopupLog; |
| 81 | # define LOG_WAYLAND(...)do { const ::mozilla::LogModule* moz_real_module = gWidgetPopupLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, ...); } } while ( 0) \ |
| 82 | MOZ_LOG(gWidgetPopupLog, mozilla::LogLevel::Debug, (__VA_ARGS__))do { const ::mozilla::LogModule* moz_real_module = gWidgetPopupLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, __VA_ARGS__); } } while (0) |
| 83 | #else |
| 84 | # define IS_WAYLAND_DISPLAY()mozilla::widget::GdkIsWaylandDisplay() false |
| 85 | # define LOG_WAYLAND(...)do { const ::mozilla::LogModule* moz_real_module = gWidgetPopupLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, ...); } } while ( 0) |
| 86 | #endif |
| 87 | |
| 88 | // NS_NewMenuPopupFrame |
| 89 | // |
| 90 | // Wrapper for creating a new menu popup container |
| 91 | // |
| 92 | nsIFrame* NS_NewMenuPopupFrame(PresShell* aPresShell, ComputedStyle* aStyle) { |
| 93 | return new (aPresShell) |
| 94 | nsMenuPopupFrame(aStyle, aPresShell->GetPresContext()); |
| 95 | } |
| 96 | |
| 97 | NS_IMPL_FRAMEARENA_HELPERS(nsMenuPopupFrame)void* nsMenuPopupFrame ::operator new(size_t sz, mozilla::PresShell * aShell) { return aShell->AllocateFrame(nsQueryFrame::nsMenuPopupFrame_id , sz); } |
| 98 | |
| 99 | NS_QUERYFRAME_HEAD(nsMenuPopupFrame)void* nsMenuPopupFrame ::QueryFrame(FrameIID id) const { switch (id) { |
| 100 | NS_QUERYFRAME_ENTRY(nsMenuPopupFrame)case nsMenuPopupFrame ::kFrameIID: { static_assert( std::is_same_v <nsMenuPopupFrame, nsMenuPopupFrame ::Has_NS_DECL_QUERYFRAME_TARGET >, "nsMenuPopupFrame" " must declare itself as a queryframe target" ); return const_cast<nsMenuPopupFrame*>(static_cast< const nsMenuPopupFrame*>(this)); } |
| 101 | NS_QUERYFRAME_TAIL_INHERITING(nsBlockFrame)default: break; } return nsBlockFrame ::QueryFrame(id); } |
| 102 | |
| 103 | // |
| 104 | // nsMenuPopupFrame ctor |
| 105 | // |
| 106 | nsMenuPopupFrame::nsMenuPopupFrame(ComputedStyle* aStyle, |
| 107 | nsPresContext* aPresContext) |
| 108 | : nsBlockFrame(aStyle, aPresContext, kClassID) { |
| 109 | // the preference name is backwards here. True means that the 'top' level is |
| 110 | // the default, and false means that the 'parent' level is the default. |
| 111 | if (sDefaultLevelIsTop >= 0) return; |
| 112 | sDefaultLevelIsTop = |
| 113 | Preferences::GetBool("ui.panel.default_level_parent", false); |
| 114 | } // ctor |
| 115 | |
| 116 | nsMenuPopupFrame::~nsMenuPopupFrame() = default; |
| 117 | |
| 118 | static bool IsMouseTransparent(const ComputedStyle& aStyle) { |
| 119 | // If pointer-events: none; is set on the popup, then the widget should |
| 120 | // ignore mouse events, passing them through to the content behind. |
| 121 | return aStyle.PointerEvents() == StylePointerEvents::None; |
| 122 | } |
| 123 | |
| 124 | static nsIWidget::InputRegion ComputeInputRegion(const ComputedStyle& aStyle, |
| 125 | const nsPresContext& aPc) { |
| 126 | return {IsMouseTransparent(aStyle), |
| 127 | (aStyle.StyleUIReset()->mMozWindowInputRegionMargin.ToCSSPixels() * |
| 128 | aPc.CSSToDevPixelScale()) |
| 129 | .Truncated()}; |
| 130 | } |
| 131 | |
| 132 | bool nsMenuPopupFrame::ShouldCreateWidgetUpfront() const { |
| 133 | if (mPopupType != PopupType::Menu) { |
| 134 | // Any panel with a type attribute, such as the autocomplete popup, is |
| 135 | // always generated right away. |
| 136 | return mContent->AsElement()->HasAttr(nsGkAtoms::type); |
| 137 | } |
| 138 | |
| 139 | // Generate the widget up-front if the parent menu is a <menulist> unless its |
| 140 | // sizetopopup is set to "none". |
| 141 | return ShouldExpandToInflowParentOrAnchor(); |
| 142 | } |
| 143 | |
| 144 | void nsMenuPopupFrame::Init(nsIContent* aContent, nsContainerFrame* aParent, |
| 145 | nsIFrame* aPrevInFlow) { |
| 146 | nsBlockFrame::Init(aContent, aParent, aPrevInFlow); |
| 147 | |
| 148 | CreatePopupView(); |
| 149 | |
| 150 | // XXX Hack. The popup's view should float above all other views, |
| 151 | // so we use the nsView::SetFloating() to tell the view manager |
| 152 | // about that constraint. |
| 153 | nsView* ourView = GetView(); |
| 154 | nsViewManager* viewManager = ourView->GetViewManager(); |
| 155 | viewManager->SetViewFloating(ourView, true); |
| 156 | |
| 157 | const auto& el = PopupElement(); |
| 158 | mPopupType = PopupType::Panel; |
| 159 | if (el.IsMenu()) { |
| 160 | mPopupType = PopupType::Menu; |
| 161 | } else if (el.IsXULElement(nsGkAtoms::tooltip)) { |
| 162 | mPopupType = PopupType::Tooltip; |
| 163 | } |
| 164 | |
| 165 | if (PresContext()->IsChrome()) { |
| 166 | mInContentShell = false; |
| 167 | } |
| 168 | |
| 169 | // Support incontentshell=false attribute to allow popups to be displayed |
| 170 | // outside of the content shell. Chrome only. |
| 171 | if (el.NodePrincipal()->IsSystemPrincipal()) { |
| 172 | if (el.GetXULBoolAttr(nsGkAtoms::incontentshell)) { |
| 173 | mInContentShell = true; |
| 174 | } else if (el.AttrValueIs(kNameSpaceID_None, nsGkAtoms::incontentshell, |
| 175 | nsGkAtoms::_false, eCaseMatters)) { |
| 176 | mInContentShell = false; |
| 177 | } |
| 178 | } |
| 179 | |
| 180 | // To improve performance, create the widget for the popup if needed. Popups |
| 181 | // such as menus will create their widgets later when the popup opens. |
| 182 | // |
| 183 | // FIXME(emilio): Doing this up-front for all menupopups causes a bunch of |
| 184 | // assertions, while it's supposed to be just an optimization. |
| 185 | if (!ourView->HasWidget() && ShouldCreateWidgetUpfront()) { |
| 186 | CreateWidgetForView(ourView); |
| 187 | } |
| 188 | |
| 189 | AddStateBits(NS_FRAME_IN_POPUP); |
| 190 | } |
| 191 | |
| 192 | bool nsMenuPopupFrame::HasRemoteContent() const { |
| 193 | return !mInContentShell && mPopupType == PopupType::Panel && |
| 194 | mContent->AsElement()->AttrValueIs(kNameSpaceID_None, |
| 195 | nsGkAtoms::remote, nsGkAtoms::_true, |
| 196 | eIgnoreCase); |
| 197 | } |
| 198 | |
| 199 | bool nsMenuPopupFrame::IsNoAutoHide() const { |
| 200 | // Panels with noautohide="true" don't hide when the mouse is clicked |
| 201 | // outside of them, or when another application is made active. Non-autohide |
| 202 | // panels cannot be used in content windows. |
| 203 | return !mInContentShell && mPopupType == PopupType::Panel && |
| 204 | mContent->AsElement()->AttrValueIs(kNameSpaceID_None, |
| 205 | nsGkAtoms::noautohide, |
| 206 | nsGkAtoms::_true, eIgnoreCase); |
| 207 | } |
| 208 | |
| 209 | widget::PopupLevel nsMenuPopupFrame::GetPopupLevel(bool aIsNoAutoHide) const { |
| 210 | // The popup level is determined as follows, in this order: |
| 211 | // 1. non-panels (menus and tooltips) are always topmost |
| 212 | // 2. any specified level attribute |
| 213 | // 3. if a titlebar attribute is set, use the 'floating' level |
| 214 | // 4. if this is a noautohide panel, use the 'parent' level |
| 215 | // 5. use the platform-specific default level |
| 216 | |
| 217 | // If this is not a panel, this is always a top-most popup. |
| 218 | if (mPopupType != PopupType::Panel) { |
| 219 | return PopupLevel::Top; |
| 220 | } |
| 221 | |
| 222 | // If the level attribute has been set, use that. |
| 223 | static Element::AttrValuesArray strings[] = {nsGkAtoms::top, |
| 224 | nsGkAtoms::parent, nullptr}; |
| 225 | switch (mContent->AsElement()->FindAttrValueIn( |
| 226 | kNameSpaceID_None, nsGkAtoms::level, strings, eCaseMatters)) { |
| 227 | case 0: |
| 228 | return PopupLevel::Top; |
| 229 | case 1: |
| 230 | return PopupLevel::Parent; |
| 231 | default: |
| 232 | break; |
| 233 | } |
| 234 | |
| 235 | // If this panel is a noautohide panel, the default is the parent level. |
| 236 | if (aIsNoAutoHide) { |
| 237 | return PopupLevel::Parent; |
| 238 | } |
| 239 | |
| 240 | // Otherwise, the result depends on the platform. |
| 241 | return sDefaultLevelIsTop ? PopupLevel::Top : PopupLevel::Parent; |
| 242 | } |
| 243 | |
| 244 | void nsMenuPopupFrame::PrepareWidget(bool aRecreate) { |
| 245 | nsView* ourView = GetView(); |
| 246 | if (aRecreate) { |
| 247 | if (auto* widget = GetWidget()) { |
| 248 | // Widget's WebRender resources needs to be cleared before creating new |
| 249 | // widget. |
| 250 | widget->ClearCachedWebrenderResources(); |
| 251 | } |
| 252 | ourView->DestroyWidget(); |
| 253 | } |
| 254 | if (!ourView->HasWidget()) { |
| 255 | CreateWidgetForView(ourView); |
| 256 | } else { |
| 257 | PropagateStyleToWidget(); |
| 258 | } |
| 259 | } |
| 260 | |
| 261 | nsresult nsMenuPopupFrame::CreateWidgetForView(nsView* aView) { |
| 262 | // Create a widget for ourselves. |
| 263 | widget::InitData widgetData; |
| 264 | widgetData.mWindowType = widget::WindowType::Popup; |
| 265 | widgetData.mBorderStyle = widget::BorderStyle::Default; |
| 266 | widgetData.mClipSiblings = true; |
| 267 | widgetData.mPopupHint = mPopupType; |
| 268 | widgetData.mNoAutoHide = IsNoAutoHide(); |
| 269 | |
| 270 | if (!mInContentShell) { |
| 271 | // A drag popup may be used for non-static translucent drag feedback |
| 272 | if (mPopupType == PopupType::Panel && |
| 273 | mContent->AsElement()->AttrValueIs(kNameSpaceID_None, nsGkAtoms::type, |
| 274 | nsGkAtoms::drag, eIgnoreCase)) { |
| 275 | widgetData.mIsDragPopup = true; |
| 276 | } |
| 277 | } |
| 278 | |
| 279 | bool remote = HasRemoteContent(); |
| 280 | |
| 281 | const auto mode = nsLayoutUtils::GetFrameTransparency(this, this); |
| 282 | widgetData.mHasRemoteContent = remote; |
| 283 | widgetData.mTransparencyMode = mode; |
| 284 | widgetData.mPopupLevel = GetPopupLevel(widgetData.mNoAutoHide); |
| 285 | |
| 286 | // Panels which have a parent level need a parent widget. This allows them to |
| 287 | // always appear in front of the parent window but behind other windows that |
| 288 | // should be in front of it. |
| 289 | nsCOMPtr<nsIWidget> parentWidget; |
| 290 | if (widgetData.mPopupLevel != PopupLevel::Top) { |
| 291 | nsCOMPtr<nsIDocShellTreeItem> dsti = PresContext()->GetDocShell(); |
| 292 | if (!dsti) return NS_ERROR_FAILURE; |
| 293 | |
| 294 | nsCOMPtr<nsIDocShellTreeOwner> treeOwner; |
| 295 | dsti->GetTreeOwner(getter_AddRefs(treeOwner)); |
| 296 | if (!treeOwner) return NS_ERROR_FAILURE; |
| 297 | |
| 298 | nsCOMPtr<nsIBaseWindow> baseWindow(do_QueryInterface(treeOwner)); |
| 299 | if (baseWindow) baseWindow->GetMainWidget(getter_AddRefs(parentWidget)); |
| 300 | } |
| 301 | |
| 302 | nsresult rv = aView->CreateWidgetForPopup(&widgetData, parentWidget); |
| 303 | if (NS_FAILED(rv)((bool)(__builtin_expect(!!(NS_FAILED_impl(rv)), 0)))) { |
| 304 | return rv; |
| 305 | } |
| 306 | |
| 307 | nsIWidget* widget = aView->GetWidget(); |
| 308 | widget->SetTransparencyMode(mode); |
| 309 | |
| 310 | PropagateStyleToWidget(); |
| 311 | |
| 312 | return NS_OK; |
| 313 | } |
| 314 | |
| 315 | void nsMenuPopupFrame::PropagateStyleToWidget(WidgetStyleFlags aFlags) const { |
| 316 | if (aFlags.isEmpty()) { |
| 317 | return; |
| 318 | } |
| 319 | |
| 320 | nsIWidget* widget = GetWidget(); |
| 321 | if (!widget) { |
| 322 | return; |
| 323 | } |
| 324 | |
| 325 | if (aFlags.contains(WidgetStyle::ColorScheme)) { |
| 326 | widget->SetColorScheme(Some(LookAndFeel::ColorSchemeForFrame(this))); |
| 327 | } |
| 328 | if (aFlags.contains(WidgetStyle::InputRegion)) { |
| 329 | widget->SetInputRegion(ComputeInputRegion(*Style(), *PresContext())); |
| 330 | } |
| 331 | if (aFlags.contains(WidgetStyle::Opacity)) { |
| 332 | widget->SetWindowOpacity(StyleUIReset()->mWindowOpacity); |
| 333 | } |
| 334 | if (aFlags.contains(WidgetStyle::Shadow)) { |
| 335 | widget->SetWindowShadowStyle(GetShadowStyle()); |
| 336 | } |
| 337 | if (aFlags.contains(WidgetStyle::Transform)) { |
| 338 | widget->SetWindowTransform(ComputeWidgetTransform()); |
| 339 | } |
| 340 | } |
| 341 | |
| 342 | bool nsMenuPopupFrame::IsMouseTransparent() const { |
| 343 | return ::IsMouseTransparent(*Style()); |
| 344 | } |
| 345 | |
| 346 | WindowShadow nsMenuPopupFrame::GetShadowStyle() const { |
| 347 | StyleWindowShadow shadow = StyleUIReset()->mWindowShadow; |
| 348 | if (shadow != StyleWindowShadow::Auto) { |
| 349 | MOZ_ASSERT(shadow == StyleWindowShadow::None)do { static_assert( mozilla::detail::AssertionConditionType< decltype(shadow == StyleWindowShadow::None)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(shadow == StyleWindowShadow:: None))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("shadow == StyleWindowShadow::None", "/var/lib/jenkins/workspace/firefox-scan-build/layout/xul/nsMenuPopupFrame.cpp" , 349); AnnotateMozCrashReason("MOZ_ASSERT" "(" "shadow == StyleWindowShadow::None" ")"); do { *((volatile int*)__null) = 349; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 350 | return WindowShadow::None; |
| 351 | } |
| 352 | |
| 353 | switch (StyleDisplay()->EffectiveAppearance()) { |
| 354 | case StyleAppearance::Tooltip: |
| 355 | return WindowShadow::Tooltip; |
| 356 | case StyleAppearance::Menupopup: |
| 357 | return WindowShadow::Menu; |
| 358 | default: |
| 359 | return WindowShadow::Panel; |
| 360 | } |
| 361 | } |
| 362 | |
| 363 | void nsMenuPopupFrame::SetPopupState(nsPopupState aState) { |
| 364 | mPopupState = aState; |
| 365 | |
| 366 | // Work around https://gitlab.gnome.org/GNOME/gtk/-/issues/4166 |
| 367 | if (aState == ePopupShown && IS_WAYLAND_DISPLAY()mozilla::widget::GdkIsWaylandDisplay()) { |
| 368 | if (nsIWidget* widget = GetWidget()) { |
| 369 | widget->SetInputRegion(ComputeInputRegion(*Style(), *PresContext())); |
| 370 | } |
| 371 | } |
| 372 | } |
| 373 | |
| 374 | // TODO: Convert this to MOZ_CAN_RUN_SCRIPT (bug 1415230, bug 1535398) |
| 375 | MOZ_CAN_RUN_SCRIPT_BOUNDARY NS_IMETHODIMPnsresult nsXULPopupShownEvent::Run() { |
| 376 | nsMenuPopupFrame* popup = do_QueryFrame(mPopup->GetPrimaryFrame()); |
| 377 | // Set the state to visible if the popup is still open. |
| 378 | if (popup && popup->IsOpen()) { |
| 379 | popup->SetPopupState(ePopupShown); |
| 380 | } |
| 381 | |
| 382 | if (!mPopup->IsXULElement(nsGkAtoms::tooltip)) { |
| 383 | nsCOMPtr<nsIObserverService> obsService = |
| 384 | mozilla::services::GetObserverService(); |
| 385 | if (obsService) { |
| 386 | obsService->NotifyObservers(mPopup, "popup-shown", nullptr); |
| 387 | } |
| 388 | } |
| 389 | WidgetMouseEvent event(true, eXULPopupShown, nullptr, |
| 390 | WidgetMouseEvent::eReal); |
| 391 | return EventDispatcher::Dispatch(mPopup, mPresContext, &event); |
| 392 | } |
| 393 | |
| 394 | NS_IMETHODIMPnsresult nsXULPopupShownEvent::HandleEvent(Event* aEvent) { |
| 395 | nsMenuPopupFrame* popup = do_QueryFrame(mPopup->GetPrimaryFrame()); |
| 396 | // Ignore events not targeted at the popup itself (ie targeted at |
| 397 | // descendants): |
| 398 | if (mPopup != aEvent->GetTarget()) { |
| 399 | return NS_OK; |
| 400 | } |
| 401 | if (popup) { |
| 402 | // ResetPopupShownDispatcher will delete the reference to this, so keep |
| 403 | // another one until Run is finished. |
| 404 | RefPtr<nsXULPopupShownEvent> event = this; |
| 405 | // Only call Run if it the dispatcher was assigned. This avoids calling the |
| 406 | // Run method if the transitionend event fires multiple times. |
| 407 | if (popup->ClearPopupShownDispatcher()) { |
| 408 | return Run(); |
| 409 | } |
| 410 | } |
| 411 | |
| 412 | CancelListener(); |
| 413 | return NS_OK; |
| 414 | } |
| 415 | |
| 416 | void nsXULPopupShownEvent::CancelListener() { |
| 417 | mPopup->RemoveSystemEventListener(u"transitionend"_ns, this, false); |
| 418 | } |
| 419 | |
| 420 | NS_IMPL_ISUPPORTS_INHERITED(nsXULPopupShownEvent, Runnable,nsresult nsXULPopupShownEvent::QueryInterface(const nsIID& aIID, void** aInstancePtr) { do { if (!(aInstancePtr)) { NS_DebugBreak (NS_DEBUG_ASSERTION, "QueryInterface requires a non-NULL destination!" , "aInstancePtr", "/var/lib/jenkins/workspace/firefox-scan-build/layout/xul/nsMenuPopupFrame.cpp" , 421); MOZ_PretendNoReturn(); } } while (0); nsresult rv = NS_ERROR_FAILURE ; static_assert(1 > 0, "Need more arguments to NS_INTERFACE_TABLE_INHERITED" ); static const QITableEntry table[] = { {&mozilla::detail ::kImplementedIID<nsXULPopupShownEvent, nsIDOMEventListener >, int32_t( reinterpret_cast<char*>(static_cast<nsIDOMEventListener *>((nsXULPopupShownEvent*)0x1000)) - reinterpret_cast<char *>((nsXULPopupShownEvent*)0x1000))}, { nullptr, 0 } } ; static_assert ((sizeof(table) / sizeof(table[0])) > 1, "need at least 1 interface" ); rv = NS_TableDrivenQI(static_cast<void*>(this), aIID , aInstancePtr, table); if (((bool)(__builtin_expect(!!(!NS_FAILED_impl (rv)), 1)))) return rv; return Runnable::QueryInterface(aIID, aInstancePtr); } MozExternalRefCountType nsXULPopupShownEvent ::AddRef(void) { static_assert(!std::is_destructible_v<nsXULPopupShownEvent >, "Reference-counted class " "nsXULPopupShownEvent" " should not have a public destructor. " "Make this class's destructor non-public"); nsrefcnt r = Runnable ::AddRef(); if constexpr (::mozilla::detail::ShouldLogInheritedRefcnt <nsXULPopupShownEvent>) { NS_LogAddRef((this), (r), ("nsXULPopupShownEvent" ), (uint32_t)(sizeof(*this))); } return r; } MozExternalRefCountType nsXULPopupShownEvent::Release(void) { nsrefcnt r = Runnable:: Release(); if constexpr (::mozilla::detail::ShouldLogInheritedRefcnt <nsXULPopupShownEvent>) { NS_LogRelease((this), (r), ("nsXULPopupShownEvent" )); } return r; } |
| 421 | nsIDOMEventListener)nsresult nsXULPopupShownEvent::QueryInterface(const nsIID& aIID, void** aInstancePtr) { do { if (!(aInstancePtr)) { NS_DebugBreak (NS_DEBUG_ASSERTION, "QueryInterface requires a non-NULL destination!" , "aInstancePtr", "/var/lib/jenkins/workspace/firefox-scan-build/layout/xul/nsMenuPopupFrame.cpp" , 421); MOZ_PretendNoReturn(); } } while (0); nsresult rv = NS_ERROR_FAILURE ; static_assert(1 > 0, "Need more arguments to NS_INTERFACE_TABLE_INHERITED" ); static const QITableEntry table[] = { {&mozilla::detail ::kImplementedIID<nsXULPopupShownEvent, nsIDOMEventListener >, int32_t( reinterpret_cast<char*>(static_cast<nsIDOMEventListener *>((nsXULPopupShownEvent*)0x1000)) - reinterpret_cast<char *>((nsXULPopupShownEvent*)0x1000))}, { nullptr, 0 } } ; static_assert ((sizeof(table) / sizeof(table[0])) > 1, "need at least 1 interface" ); rv = NS_TableDrivenQI(static_cast<void*>(this), aIID , aInstancePtr, table); if (((bool)(__builtin_expect(!!(!NS_FAILED_impl (rv)), 1)))) return rv; return Runnable::QueryInterface(aIID, aInstancePtr); } MozExternalRefCountType nsXULPopupShownEvent ::AddRef(void) { static_assert(!std::is_destructible_v<nsXULPopupShownEvent >, "Reference-counted class " "nsXULPopupShownEvent" " should not have a public destructor. " "Make this class's destructor non-public"); nsrefcnt r = Runnable ::AddRef(); if constexpr (::mozilla::detail::ShouldLogInheritedRefcnt <nsXULPopupShownEvent>) { NS_LogAddRef((this), (r), ("nsXULPopupShownEvent" ), (uint32_t)(sizeof(*this))); } return r; } MozExternalRefCountType nsXULPopupShownEvent::Release(void) { nsrefcnt r = Runnable:: Release(); if constexpr (::mozilla::detail::ShouldLogInheritedRefcnt <nsXULPopupShownEvent>) { NS_LogRelease((this), (r), ("nsXULPopupShownEvent" )); } return r; }; |
| 422 | |
| 423 | void nsMenuPopupFrame::DidSetComputedStyle(ComputedStyle* aOldStyle) { |
| 424 | nsBlockFrame::DidSetComputedStyle(aOldStyle); |
| 425 | |
| 426 | if (!aOldStyle) { |
| 427 | return; |
| 428 | } |
| 429 | |
| 430 | WidgetStyleFlags flags; |
| 431 | |
| 432 | if (aOldStyle->StyleUI()->mColorScheme != StyleUI()->mColorScheme) { |
| 433 | flags += WidgetStyle::ColorScheme; |
| 434 | } |
| 435 | |
| 436 | auto& newUI = *StyleUIReset(); |
| 437 | auto& oldUI = *aOldStyle->StyleUIReset(); |
| 438 | if (newUI.mWindowOpacity != oldUI.mWindowOpacity) { |
| 439 | flags += WidgetStyle::Opacity; |
| 440 | } |
| 441 | |
| 442 | if (newUI.mMozWindowTransform != oldUI.mMozWindowTransform) { |
| 443 | flags += WidgetStyle::Transform; |
| 444 | } |
| 445 | |
| 446 | if (newUI.mWindowShadow != oldUI.mWindowShadow) { |
| 447 | flags += WidgetStyle::Shadow; |
| 448 | } |
| 449 | |
| 450 | const auto& pc = *PresContext(); |
| 451 | auto oldRegion = ComputeInputRegion(*aOldStyle, pc); |
| 452 | auto newRegion = ComputeInputRegion(*Style(), pc); |
| 453 | if (oldRegion.mFullyTransparent != newRegion.mFullyTransparent || |
| 454 | oldRegion.mMargin != newRegion.mMargin) { |
| 455 | flags += WidgetStyle::InputRegion; |
| 456 | } |
| 457 | |
| 458 | PropagateStyleToWidget(flags); |
| 459 | } |
| 460 | |
| 461 | nscoord nsMenuPopupFrame::IntrinsicISize(gfxContext* aContext, |
| 462 | IntrinsicISizeType aType) { |
| 463 | nscoord iSize = nsBlockFrame::IntrinsicISize(aContext, aType); |
| 464 | if (!ShouldExpandToInflowParentOrAnchor()) { |
| 465 | return iSize; |
| 466 | } |
| 467 | // Make sure to accommodate for our scrollbar if needed. Do it only for |
| 468 | // menulists to match previous behavior. |
| 469 | // |
| 470 | // NOTE(emilio): This is somewhat hacky. The "right" fix (which would be |
| 471 | // using scrollbar-gutter: stable on the scroller) isn't great, because even |
| 472 | // though we want a stable gutter, we want to draw on top of the gutter when |
| 473 | // there's no scrollbar, otherwise it looks rather weird. |
| 474 | // |
| 475 | // Automatically accommodating for the scrollbar otherwise would be bug |
| 476 | // 764076, but that has its own set of problems. |
| 477 | if (ScrollContainerFrame* sf = GetScrollContainerFrame()) { |
| 478 | iSize += sf->GetDesiredScrollbarSizes().LeftRight(); |
| 479 | } |
| 480 | |
| 481 | nscoord menuListOrAnchorWidth = 0; |
| 482 | if (nsIFrame* menuList = GetInFlowParent()) { |
| 483 | menuListOrAnchorWidth = menuList->GetRect().width; |
| 484 | } |
| 485 | if (mAnchorType == MenuPopupAnchorType::Rect) { |
| 486 | menuListOrAnchorWidth = std::max(menuListOrAnchorWidth, mScreenRect.width); |
| 487 | } |
| 488 | // Input margin doesn't have contents, so account for it for popup sizing |
| 489 | // purposes. |
| 490 | menuListOrAnchorWidth += |
| 491 | 2 * StyleUIReset()->mMozWindowInputRegionMargin.ToAppUnits(); |
| 492 | |
| 493 | return std::max(iSize, menuListOrAnchorWidth); |
| 494 | } |
| 495 | |
| 496 | void nsMenuPopupFrame::Reflow(nsPresContext* aPresContext, |
| 497 | ReflowOutput& aDesiredSize, |
| 498 | const ReflowInput& aReflowInput, |
| 499 | nsReflowStatus& aStatus) { |
| 500 | MarkInReflow(); |
| 501 | DO_GLOBAL_REFLOW_COUNT("nsMenuPopupFrame")aPresContext->CountReflows(("nsMenuPopupFrame"), (nsIFrame *)this);; |
| 502 | MOZ_ASSERT(aStatus.IsEmpty(), "Caller should pass a fresh reflow status!")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aStatus.IsEmpty())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aStatus.IsEmpty()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aStatus.IsEmpty()" " (" "Caller should pass a fresh reflow status!" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/xul/nsMenuPopupFrame.cpp" , 502); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aStatus.IsEmpty()" ") (" "Caller should pass a fresh reflow status!" ")"); do { *((volatile int*)__null) = 502; __attribute__((nomerge)) ::abort (); } while (false); } } while (false); |
| 503 | |
| 504 | const auto wm = GetWritingMode(); |
| 505 | // Default to preserving our bounds. |
| 506 | aDesiredSize.SetSize(wm, GetLogicalSize(wm)); |
| 507 | |
| 508 | LayoutPopup(aPresContext, aDesiredSize, aReflowInput, aStatus); |
| 509 | |
| 510 | aDesiredSize.SetBlockStartAscent(aDesiredSize.BSize(wm)); |
| 511 | aDesiredSize.SetOverflowAreasToDesiredBounds(); |
| 512 | FinishAndStoreOverflow(&aDesiredSize, aReflowInput.mStyleDisplay); |
| 513 | } |
| 514 | |
| 515 | void nsMenuPopupFrame::EnsureActiveMenuListItemIsVisible() { |
| 516 | if (!IsMenuList() || !IsOpen()) { |
| 517 | return; |
| 518 | } |
| 519 | nsIFrame* frame = GetCurrentMenuItemFrame(); |
| 520 | if (!frame) { |
| 521 | return; |
| 522 | } |
| 523 | RefPtr<mozilla::PresShell> presShell = PresShell(); |
| 524 | presShell->ScrollFrameIntoView( |
| 525 | frame, Nothing(), ScrollAxis(), ScrollAxis(), |
| 526 | ScrollFlags::ScrollOverflowHidden | ScrollFlags::ScrollFirstAncestorOnly); |
| 527 | } |
| 528 | |
| 529 | void nsMenuPopupFrame::LayoutPopup(nsPresContext* aPresContext, |
| 530 | ReflowOutput& aDesiredSize, |
| 531 | const ReflowInput& aReflowInput, |
| 532 | nsReflowStatus& aStatus) { |
| 533 | if (IsNativeMenu()) { |
| 534 | return; |
| 535 | } |
| 536 | |
| 537 | SchedulePaint(); |
| 538 | |
| 539 | const bool isOpen = IsOpen(); |
| 540 | if (!isOpen) { |
| 541 | // If the popup is not open, only do layout while showing or if we're a |
| 542 | // menulist. |
| 543 | // |
| 544 | // This is needed because the SelectParent code wants to limit the height of |
| 545 | // the popup before opening it. |
| 546 | // |
| 547 | // TODO(emilio): We should consider adding a way to do that more reliably |
| 548 | // instead, but this preserves existing behavior. |
| 549 | const bool needsLayout = mPopupState == ePopupShowing || |
| 550 | mPopupState == ePopupPositioning || IsMenuList(); |
| 551 | if (!needsLayout) { |
| 552 | RemoveStateBits(NS_FRAME_FIRST_REFLOW); |
| 553 | return; |
| 554 | } |
| 555 | } |
| 556 | |
| 557 | // Do a first reflow, with all our content, in order to find our preferred |
| 558 | // size. Then, we do a second reflow with the updated dimensions. |
| 559 | const bool needsPrefSize = mPrefSize == nsSize(-1, -1) || IsSubtreeDirty(); |
| 560 | if (needsPrefSize) { |
| 561 | // Get the preferred, minimum and maximum size. If the menu is sized to the |
| 562 | // popup, then the popup's width is the menu's width. |
| 563 | ReflowOutput preferredSize(aReflowInput); |
| 564 | nsBlockFrame::Reflow(aPresContext, preferredSize, aReflowInput, aStatus); |
| 565 | mPrefSize = preferredSize.PhysicalSize(); |
| 566 | } |
| 567 | |
| 568 | // Get our desired position and final size, now that we have a preferred size. |
| 569 | auto constraints = GetRects(mPrefSize); |
| 570 | const auto finalSize = constraints.mUsedRect.Size(); |
| 571 | |
| 572 | // We need to do an extra reflow if we haven't reflowed, our size doesn't |
| 573 | // match with our final intended size, or our bsize is unconstrained (in which |
| 574 | // case we need to specify the final size so that percentages work). |
| 575 | const bool needDefiniteReflow = |
| 576 | aReflowInput.ComputedBSize() == NS_UNCONSTRAINEDSIZE || !needsPrefSize || |
| 577 | finalSize != mPrefSize; |
| 578 | |
| 579 | if (needDefiniteReflow) { |
| 580 | ReflowInput constrainedReflowInput(aReflowInput); |
| 581 | const auto& bp = aReflowInput.ComputedPhysicalBorderPadding(); |
| 582 | // TODO: writing-mode handling not terribly correct, but it doesn't matter. |
| 583 | const nsSize finalContentSize(finalSize.width - bp.LeftRight(), |
| 584 | finalSize.height - bp.TopBottom()); |
| 585 | constrainedReflowInput.SetComputedISize(finalContentSize.width); |
| 586 | constrainedReflowInput.SetComputedBSize(finalContentSize.height); |
| 587 | constrainedReflowInput.SetIResize(finalSize.width != mPrefSize.width); |
| 588 | constrainedReflowInput.SetBResize([&] { |
| 589 | if (finalSize.height != mPrefSize.height) { |
| 590 | return true; |
| 591 | } |
| 592 | if (needsPrefSize && |
| 593 | aReflowInput.ComputedBSize() == NS_UNCONSTRAINEDSIZE && |
| 594 | aReflowInput.ComputedMaxBSize() == finalContentSize.height) { |
| 595 | // If we have measured, and maybe clamped our children via max-height, |
| 596 | // they might need to get percentages in the block axis re-resolved. |
| 597 | return true; |
| 598 | } |
| 599 | return false; |
| 600 | }()); |
| 601 | |
| 602 | aStatus.Reset(); |
| 603 | nsBlockFrame::Reflow(aPresContext, aDesiredSize, constrainedReflowInput, |
| 604 | aStatus); |
| 605 | } |
| 606 | |
| 607 | // Set our size, since nsAbsoluteContainingBlock won't. |
| 608 | SetRect(constraints.mUsedRect); |
| 609 | |
| 610 | nsView* view = GetView(); |
| 611 | if (isOpen) { |
| 612 | nsViewManager* viewManager = view->GetViewManager(); |
| 613 | viewManager->ResizeView(view, |
| 614 | nsRect(nsPoint(), constraints.mUsedRect.Size())); |
| 615 | if (mPopupState == ePopupOpening) { |
| 616 | mPopupState = ePopupVisible; |
| 617 | } |
| 618 | |
| 619 | viewManager->SetViewVisibility(view, ViewVisibility::Show); |
| 620 | SyncFrameViewProperties(view); |
| 621 | } |
| 622 | |
| 623 | // Perform our move now. That will position the view and so on. |
| 624 | PerformMove(constraints); |
| 625 | |
| 626 | // finally, if the popup just opened, send a popupshown event |
| 627 | bool openChanged = mIsOpenChanged; |
| 628 | if (openChanged) { |
| 629 | mIsOpenChanged = false; |
| 630 | |
| 631 | // Make sure the current selection in a menulist is visible. |
| 632 | EnsureActiveMenuListItemIsVisible(); |
| 633 | |
| 634 | // If the animate attribute is set to open, check for a transition and wait |
| 635 | // for it to finish before firing the popupshown event. |
| 636 | if (LookAndFeel::GetInt(LookAndFeel::IntID::PanelAnimations) && |
| 637 | mContent->AsElement()->AttrValueIs(kNameSpaceID_None, |
| 638 | nsGkAtoms::animate, nsGkAtoms::open, |
| 639 | eCaseMatters) && |
| 640 | AnimationUtils::HasCurrentTransitions(mContent->AsElement(), |
| 641 | PseudoStyleType::NotPseudo)) { |
| 642 | mPopupShownDispatcher = new nsXULPopupShownEvent(mContent, aPresContext); |
| 643 | mContent->AddSystemEventListener(u"transitionend"_ns, |
| 644 | mPopupShownDispatcher, false, false); |
| 645 | return; |
| 646 | } |
| 647 | |
| 648 | // If there are no transitions, fire the popupshown event right away. |
| 649 | nsCOMPtr<nsIRunnable> event = |
| 650 | new nsXULPopupShownEvent(GetContent(), aPresContext); |
| 651 | mContent->OwnerDoc()->Dispatch(event.forget()); |
| 652 | } |
| 653 | } |
| 654 | |
| 655 | bool nsMenuPopupFrame::IsMenuList() const { |
| 656 | return PopupElement().IsInMenuList(); |
| 657 | } |
| 658 | |
| 659 | bool nsMenuPopupFrame::ShouldExpandToInflowParentOrAnchor() const { |
| 660 | return IsMenuList() && !mContent->GetParent()->AsElement()->AttrValueIs( |
| 661 | kNameSpaceID_None, nsGkAtoms::sizetopopup, |
| 662 | nsGkAtoms::none, eCaseMatters); |
| 663 | } |
| 664 | |
| 665 | nsIContent* nsMenuPopupFrame::GetTriggerContent( |
| 666 | nsMenuPopupFrame* aMenuPopupFrame) { |
| 667 | while (aMenuPopupFrame) { |
| 668 | if (aMenuPopupFrame->mTriggerContent) { |
| 669 | return aMenuPopupFrame->mTriggerContent; |
| 670 | } |
| 671 | |
| 672 | auto* button = XULButtonElement::FromNodeOrNull( |
| 673 | aMenuPopupFrame->GetContent()->GetParent()); |
| 674 | if (!button || !button->IsMenu()) { |
| 675 | break; |
| 676 | } |
| 677 | |
| 678 | auto* popup = button->GetContainingPopupElement(); |
| 679 | if (!popup) { |
| 680 | break; |
| 681 | } |
| 682 | |
| 683 | // check up the menu hierarchy until a popup with a trigger node is found |
| 684 | aMenuPopupFrame = do_QueryFrame(popup->GetPrimaryFrame()); |
| 685 | } |
| 686 | |
| 687 | return nullptr; |
| 688 | } |
| 689 | |
| 690 | void nsMenuPopupFrame::InitPositionFromAnchorAlign(const nsAString& aAnchor, |
| 691 | const nsAString& aAlign) { |
| 692 | mTriggerContent = nullptr; |
| 693 | |
| 694 | if (aAnchor.EqualsLiteral("topleft")) |
| 695 | mPopupAnchor = POPUPALIGNMENT_TOPLEFT1; |
| 696 | else if (aAnchor.EqualsLiteral("topright")) |
| 697 | mPopupAnchor = POPUPALIGNMENT_TOPRIGHT-1; |
| 698 | else if (aAnchor.EqualsLiteral("bottomleft")) |
| 699 | mPopupAnchor = POPUPALIGNMENT_BOTTOMLEFT2; |
| 700 | else if (aAnchor.EqualsLiteral("bottomright")) |
| 701 | mPopupAnchor = POPUPALIGNMENT_BOTTOMRIGHT-2; |
| 702 | else if (aAnchor.EqualsLiteral("leftcenter")) |
| 703 | mPopupAnchor = POPUPALIGNMENT_LEFTCENTER16; |
| 704 | else if (aAnchor.EqualsLiteral("rightcenter")) |
| 705 | mPopupAnchor = POPUPALIGNMENT_RIGHTCENTER-16; |
| 706 | else if (aAnchor.EqualsLiteral("topcenter")) |
| 707 | mPopupAnchor = POPUPALIGNMENT_TOPCENTER17; |
| 708 | else if (aAnchor.EqualsLiteral("bottomcenter")) |
| 709 | mPopupAnchor = POPUPALIGNMENT_BOTTOMCENTER18; |
| 710 | else |
| 711 | mPopupAnchor = POPUPALIGNMENT_NONE0; |
| 712 | |
| 713 | if (aAlign.EqualsLiteral("topleft")) |
| 714 | mPopupAlignment = POPUPALIGNMENT_TOPLEFT1; |
| 715 | else if (aAlign.EqualsLiteral("topright")) |
| 716 | mPopupAlignment = POPUPALIGNMENT_TOPRIGHT-1; |
| 717 | else if (aAlign.EqualsLiteral("bottomleft")) |
| 718 | mPopupAlignment = POPUPALIGNMENT_BOTTOMLEFT2; |
| 719 | else if (aAlign.EqualsLiteral("bottomright")) |
| 720 | mPopupAlignment = POPUPALIGNMENT_BOTTOMRIGHT-2; |
| 721 | else if (aAlign.EqualsLiteral("leftcenter")) |
| 722 | mPopupAlignment = POPUPALIGNMENT_LEFTCENTER16; |
| 723 | else if (aAlign.EqualsLiteral("rightcenter")) |
| 724 | mPopupAlignment = POPUPALIGNMENT_RIGHTCENTER-16; |
| 725 | else if (aAlign.EqualsLiteral("topcenter")) |
| 726 | mPopupAlignment = POPUPALIGNMENT_TOPCENTER17; |
| 727 | else if (aAlign.EqualsLiteral("bottomcenter")) |
| 728 | mPopupAlignment = POPUPALIGNMENT_BOTTOMCENTER18; |
| 729 | else |
| 730 | mPopupAlignment = POPUPALIGNMENT_NONE0; |
| 731 | |
| 732 | mPosition = POPUPPOSITION_UNKNOWN-1; |
| 733 | } |
| 734 | |
| 735 | static FlipType FlipFromAttribute(nsMenuPopupFrame* aFrame) { |
| 736 | nsAutoString flip; |
| 737 | aFrame->PopupElement().GetAttr(nsGkAtoms::flip, flip); |
| 738 | if (flip.EqualsLiteral("none")) { |
| 739 | return FlipType_None; |
| 740 | } |
| 741 | if (flip.EqualsLiteral("both")) { |
| 742 | return FlipType_Both; |
| 743 | } |
| 744 | if (flip.EqualsLiteral("slide")) { |
| 745 | return FlipType_Slide; |
| 746 | } |
| 747 | return FlipType_Default; |
| 748 | } |
| 749 | |
| 750 | void nsMenuPopupFrame::InitializePopup(nsIContent* aAnchorContent, |
| 751 | nsIContent* aTriggerContent, |
| 752 | const nsAString& aPosition, |
| 753 | int32_t aXPos, int32_t aYPos, |
| 754 | MenuPopupAnchorType aAnchorType, |
| 755 | bool aAttributesOverride) { |
| 756 | auto* widget = GetWidget(); |
| 757 | bool recreateWidget = widget && widget->NeedsRecreateToReshow(); |
| 758 | PrepareWidget(recreateWidget); |
| 759 | |
| 760 | mPopupState = ePopupShowing; |
| 761 | mAnchorContent = aAnchorContent; |
| 762 | mTriggerContent = aTriggerContent; |
| 763 | mXPos = aXPos; |
| 764 | mYPos = aYPos; |
| 765 | mIsNativeMenu = false; |
| 766 | mIsTopLevelContextMenu = false; |
| 767 | mVFlip = false; |
| 768 | mHFlip = false; |
| 769 | mConstrainedByLayout = false; |
| 770 | mAlignmentOffset = 0; |
| 771 | mPositionedOffset = 0; |
| 772 | mPositionedByMoveToRect = false; |
| 773 | |
| 774 | mAnchorType = aAnchorType; |
| 775 | |
| 776 | // if aAttributesOverride is true, then the popupanchor, popupalign and |
| 777 | // position attributes on the <menupopup> override those values passed in. |
| 778 | // If false, those attributes are only used if the values passed in are empty |
| 779 | if (aAnchorContent || aAnchorType == MenuPopupAnchorType::Rect) { |
| 780 | nsAutoString anchor, align, position; |
| 781 | mContent->AsElement()->GetAttr(nsGkAtoms::popupanchor, anchor); |
| 782 | mContent->AsElement()->GetAttr(nsGkAtoms::popupalign, align); |
| 783 | mContent->AsElement()->GetAttr(nsGkAtoms::position, position); |
| 784 | |
| 785 | if (aAttributesOverride) { |
| 786 | // if the attributes are set, clear the offset position. Otherwise, |
| 787 | // the offset is used to adjust the position from the anchor point |
| 788 | if (anchor.IsEmpty() && align.IsEmpty() && position.IsEmpty()) |
| 789 | position.Assign(aPosition); |
| 790 | else |
| 791 | mXPos = mYPos = 0; |
| 792 | } else if (!aPosition.IsEmpty()) { |
| 793 | position.Assign(aPosition); |
| 794 | } |
| 795 | |
| 796 | mFlip = FlipFromAttribute(this); |
| 797 | |
| 798 | position.CompressWhitespace(); |
| 799 | int32_t spaceIdx = position.FindChar(' '); |
| 800 | // if there is a space in the position, assume it is the anchor and |
| 801 | // alignment as two separate tokens. |
| 802 | if (spaceIdx >= 0) { |
| 803 | InitPositionFromAnchorAlign(Substring(position, 0, spaceIdx), |
| 804 | Substring(position, spaceIdx + 1)); |
| 805 | } else if (position.EqualsLiteral("before_start")) { |
| 806 | mPopupAnchor = POPUPALIGNMENT_TOPLEFT1; |
| 807 | mPopupAlignment = POPUPALIGNMENT_BOTTOMLEFT2; |
| 808 | mPosition = POPUPPOSITION_BEFORESTART0; |
| 809 | } else if (position.EqualsLiteral("before_end")) { |
| 810 | mPopupAnchor = POPUPALIGNMENT_TOPRIGHT-1; |
| 811 | mPopupAlignment = POPUPALIGNMENT_BOTTOMRIGHT-2; |
| 812 | mPosition = POPUPPOSITION_BEFOREEND1; |
| 813 | } else if (position.EqualsLiteral("after_start")) { |
| 814 | mPopupAnchor = POPUPALIGNMENT_BOTTOMLEFT2; |
| 815 | mPopupAlignment = POPUPALIGNMENT_TOPLEFT1; |
| 816 | mPosition = POPUPPOSITION_AFTERSTART2; |
| 817 | } else if (position.EqualsLiteral("after_end")) { |
| 818 | mPopupAnchor = POPUPALIGNMENT_BOTTOMRIGHT-2; |
| 819 | mPopupAlignment = POPUPALIGNMENT_TOPRIGHT-1; |
| 820 | mPosition = POPUPPOSITION_AFTEREND3; |
| 821 | } else if (position.EqualsLiteral("start_before")) { |
| 822 | mPopupAnchor = POPUPALIGNMENT_TOPLEFT1; |
| 823 | mPopupAlignment = POPUPALIGNMENT_TOPRIGHT-1; |
| 824 | mPosition = POPUPPOSITION_STARTBEFORE4; |
| 825 | } else if (position.EqualsLiteral("start_after")) { |
| 826 | mPopupAnchor = POPUPALIGNMENT_BOTTOMLEFT2; |
| 827 | mPopupAlignment = POPUPALIGNMENT_BOTTOMRIGHT-2; |
| 828 | mPosition = POPUPPOSITION_STARTAFTER6; |
| 829 | } else if (position.EqualsLiteral("end_before")) { |
| 830 | mPopupAnchor = POPUPALIGNMENT_TOPRIGHT-1; |
| 831 | mPopupAlignment = POPUPALIGNMENT_TOPLEFT1; |
| 832 | mPosition = POPUPPOSITION_ENDBEFORE5; |
| 833 | } else if (position.EqualsLiteral("end_after")) { |
| 834 | mPopupAnchor = POPUPALIGNMENT_BOTTOMRIGHT-2; |
| 835 | mPopupAlignment = POPUPALIGNMENT_BOTTOMLEFT2; |
| 836 | mPosition = POPUPPOSITION_ENDAFTER7; |
| 837 | } else if (position.EqualsLiteral("overlap")) { |
| 838 | mPopupAnchor = POPUPALIGNMENT_TOPLEFT1; |
| 839 | mPopupAlignment = POPUPALIGNMENT_TOPLEFT1; |
| 840 | mPosition = POPUPPOSITION_OVERLAP8; |
| 841 | } else if (position.EqualsLiteral("selection")) { |
| 842 | mPopupAnchor = POPUPALIGNMENT_BOTTOMLEFT2; |
| 843 | mPopupAlignment = POPUPALIGNMENT_TOPLEFT1; |
| 844 | mPosition = POPUPPOSITION_SELECTION10; |
| 845 | } else { |
| 846 | InitPositionFromAnchorAlign(anchor, align); |
| 847 | } |
| 848 | } |
| 849 | // When converted back to CSSIntRect it is (-1, -1, 0, 0) - as expected in |
| 850 | // nsXULPopupManager::Rollup |
| 851 | mScreenRect = nsRect(-AppUnitsPerCSSPixel(), -AppUnitsPerCSSPixel(), 0, 0); |
| 852 | |
| 853 | if (aAttributesOverride) { |
| 854 | // Use |left| and |top| dimension attributes to position the popup if |
| 855 | // present, as they may have been persisted. |
| 856 | nsAutoString left, top; |
| 857 | mContent->AsElement()->GetAttr(nsGkAtoms::left, left); |
| 858 | mContent->AsElement()->GetAttr(nsGkAtoms::top, top); |
| 859 | |
| 860 | nsresult err; |
| 861 | if (!left.IsEmpty()) { |
| 862 | int32_t x = left.ToInteger(&err); |
| 863 | if (NS_SUCCEEDED(err)((bool)(__builtin_expect(!!(!NS_FAILED_impl(err)), 1)))) { |
| 864 | mScreenRect.x = CSSPixel::ToAppUnits(x); |
| 865 | } |
| 866 | } |
| 867 | if (!top.IsEmpty()) { |
| 868 | int32_t y = top.ToInteger(&err); |
| 869 | if (NS_SUCCEEDED(err)((bool)(__builtin_expect(!!(!NS_FAILED_impl(err)), 1)))) { |
| 870 | mScreenRect.y = CSSPixel::ToAppUnits(y); |
| 871 | } |
| 872 | } |
| 873 | } |
| 874 | } |
| 875 | |
| 876 | void nsMenuPopupFrame::InitializePopupAtScreen(nsIContent* aTriggerContent, |
| 877 | int32_t aXPos, int32_t aYPos, |
| 878 | bool aIsContextMenu) { |
| 879 | auto* widget = GetWidget(); |
| 880 | bool recreateWidget = widget && widget->NeedsRecreateToReshow(); |
| 881 | PrepareWidget(recreateWidget); |
| 882 | |
| 883 | mPopupState = ePopupShowing; |
| 884 | mAnchorContent = nullptr; |
| 885 | mTriggerContent = aTriggerContent; |
| 886 | mScreenRect = |
| 887 | nsRect(CSSPixel::ToAppUnits(aXPos), CSSPixel::ToAppUnits(aYPos), 0, 0); |
| 888 | mXPos = 0; |
| 889 | mYPos = 0; |
| 890 | mFlip = FlipFromAttribute(this); |
| 891 | mPopupAnchor = POPUPALIGNMENT_NONE0; |
| 892 | mPopupAlignment = POPUPALIGNMENT_NONE0; |
| 893 | mPosition = POPUPPOSITION_UNKNOWN-1; |
| 894 | mIsContextMenu = aIsContextMenu; |
| 895 | mIsTopLevelContextMenu = aIsContextMenu; |
| 896 | mIsNativeMenu = false; |
| 897 | mAnchorType = MenuPopupAnchorType::Point; |
| 898 | mPositionedOffset = 0; |
| 899 | mPositionedByMoveToRect = false; |
| 900 | } |
| 901 | |
| 902 | void nsMenuPopupFrame::InitializePopupAsNativeContextMenu( |
| 903 | nsIContent* aTriggerContent, int32_t aXPos, int32_t aYPos) { |
| 904 | mTriggerContent = aTriggerContent; |
| 905 | mPopupState = ePopupShowing; |
| 906 | mAnchorContent = nullptr; |
| 907 | mScreenRect = |
| 908 | nsRect(CSSPixel::ToAppUnits(aXPos), CSSPixel::ToAppUnits(aYPos), 0, 0); |
| 909 | mXPos = 0; |
| 910 | mYPos = 0; |
| 911 | mFlip = FlipType_Default; |
| 912 | mPopupAnchor = POPUPALIGNMENT_NONE0; |
| 913 | mPopupAlignment = POPUPALIGNMENT_NONE0; |
| 914 | mPosition = POPUPPOSITION_UNKNOWN-1; |
| 915 | mIsContextMenu = true; |
| 916 | mIsTopLevelContextMenu = true; |
| 917 | mIsNativeMenu = true; |
| 918 | mAnchorType = MenuPopupAnchorType::Point; |
| 919 | mPositionedOffset = 0; |
| 920 | mPositionedByMoveToRect = false; |
| 921 | } |
| 922 | |
| 923 | void nsMenuPopupFrame::InitializePopupAtRect(nsIContent* aTriggerContent, |
| 924 | const nsAString& aPosition, |
| 925 | const nsIntRect& aRect, |
| 926 | bool aAttributesOverride) { |
| 927 | InitializePopup(nullptr, aTriggerContent, aPosition, 0, 0, |
| 928 | MenuPopupAnchorType::Rect, aAttributesOverride); |
| 929 | mScreenRect = ToAppUnits(aRect, AppUnitsPerCSSPixel()); |
| 930 | } |
| 931 | |
| 932 | void nsMenuPopupFrame::ShowPopup(bool aIsContextMenu) { |
| 933 | mIsContextMenu = aIsContextMenu; |
| 934 | |
| 935 | InvalidateFrameSubtree(); |
| 936 | |
| 937 | if (mPopupState == ePopupShowing || mPopupState == ePopupPositioning) { |
| 938 | mPopupState = ePopupOpening; |
| 939 | mIsOpenChanged = true; |
| 940 | |
| 941 | // Clear mouse capture when a popup is opened. |
| 942 | if (mPopupType == PopupType::Menu) { |
| 943 | if (auto* activeESM = EventStateManager::GetActiveEventStateManager()) { |
| 944 | EventStateManager::ClearGlobalActiveContent(activeESM); |
| 945 | } |
| 946 | |
| 947 | PresShell::ReleaseCapturingContent(); |
| 948 | } |
| 949 | |
| 950 | if (RefPtr menu = PopupElement().GetContainingMenu()) { |
| 951 | menu->PopupOpened(); |
| 952 | } |
| 953 | |
| 954 | // We skip laying out children if we're closed, so make sure that we do a |
| 955 | // full dirty reflow when opening to pick up any potential change. |
| 956 | PresShell()->FrameNeedsReflow( |
| 957 | this, IntrinsicDirty::FrameAncestorsAndDescendants, NS_FRAME_IS_DIRTY); |
| 958 | |
| 959 | if (mPopupType == PopupType::Menu) { |
| 960 | nsCOMPtr<nsISound> sound(do_GetService("@mozilla.org/sound;1")); |
| 961 | if (sound) sound->PlayEventSound(nsISound::EVENT_MENU_POPUP); |
| 962 | } |
| 963 | } |
| 964 | } |
| 965 | |
| 966 | void nsMenuPopupFrame::ClearTriggerContentIncludingDocument() { |
| 967 | // clear the trigger content if the popup is being closed. But don't clear |
| 968 | // it if the popup is just being made invisible as a popuphiding or command |
| 969 | if (mTriggerContent) { |
| 970 | // if the popup had a trigger node set, clear the global window popup node |
| 971 | // as well |
| 972 | Document* doc = mContent->GetUncomposedDoc(); |
| 973 | if (doc) { |
| 974 | if (nsPIDOMWindowOuter* win = doc->GetWindow()) { |
| 975 | nsCOMPtr<nsPIWindowRoot> root = win->GetTopWindowRoot(); |
| 976 | if (root) { |
| 977 | root->SetPopupNode(nullptr); |
| 978 | } |
| 979 | } |
| 980 | } |
| 981 | } |
| 982 | mTriggerContent = nullptr; |
| 983 | } |
| 984 | |
| 985 | void nsMenuPopupFrame::HidePopup(bool aDeselectMenu, nsPopupState aNewState, |
| 986 | bool aFromFrameDestruction) { |
| 987 | NS_ASSERTION(aNewState == ePopupClosed || aNewState == ePopupInvisible,do { if (!(aNewState == ePopupClosed || aNewState == ePopupInvisible )) { NS_DebugBreak(NS_DEBUG_ASSERTION, "popup being set to unexpected state" , "aNewState == ePopupClosed || aNewState == ePopupInvisible" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/xul/nsMenuPopupFrame.cpp" , 988); MOZ_PretendNoReturn(); } } while (0) |
| 988 | "popup being set to unexpected state")do { if (!(aNewState == ePopupClosed || aNewState == ePopupInvisible )) { NS_DebugBreak(NS_DEBUG_ASSERTION, "popup being set to unexpected state" , "aNewState == ePopupClosed || aNewState == ePopupInvisible" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/xul/nsMenuPopupFrame.cpp" , 988); MOZ_PretendNoReturn(); } } while (0); |
| 989 | |
| 990 | ClearPopupShownDispatcher(); |
| 991 | |
| 992 | // don't hide the popup when it isn't open |
| 993 | if (mPopupState == ePopupClosed || mPopupState == ePopupShowing || |
| 994 | mPopupState == ePopupPositioning) { |
| 995 | return; |
| 996 | } |
| 997 | |
| 998 | if (aNewState == ePopupClosed) { |
| 999 | // clear the trigger content if the popup is being closed. But don't clear |
| 1000 | // it if the popup is just being made invisible as a popuphiding or command |
| 1001 | // event may want to retrieve it. |
| 1002 | ClearTriggerContentIncludingDocument(); |
| 1003 | mAnchorContent = nullptr; |
| 1004 | } |
| 1005 | |
| 1006 | // when invisible and about to be closed, HidePopup has already been called, |
| 1007 | // so just set the new state to closed and return |
| 1008 | if (mPopupState == ePopupInvisible) { |
| 1009 | if (aNewState == ePopupClosed) { |
| 1010 | mPopupState = ePopupClosed; |
| 1011 | } |
| 1012 | return; |
| 1013 | } |
| 1014 | |
| 1015 | mPopupState = aNewState; |
| 1016 | |
| 1017 | mIncrementalString.Truncate(); |
| 1018 | |
| 1019 | mIsOpenChanged = false; |
| 1020 | mHFlip = mVFlip = false; |
| 1021 | mConstrainedByLayout = false; |
| 1022 | |
| 1023 | if (auto* widget = GetWidget()) { |
| 1024 | // Ideally we should call ClearCachedWebrenderResources but there are |
| 1025 | // intermittent failures (see bug 1748788), so we currently call |
| 1026 | // ClearWebrenderAnimationResources instead. |
| 1027 | widget->ClearWebrenderAnimationResources(); |
| 1028 | } |
| 1029 | |
| 1030 | nsView* view = GetView(); |
| 1031 | nsViewManager* viewManager = view->GetViewManager(); |
| 1032 | viewManager->SetViewVisibility(view, ViewVisibility::Hide); |
| 1033 | |
| 1034 | RefPtr popup = &PopupElement(); |
| 1035 | // XXX, bug 137033, In Windows, if mouse is outside the window when the |
| 1036 | // menupopup closes, no mouse_enter/mouse_exit event will be fired to clear |
| 1037 | // current hover state, we should clear it manually. This code may not the |
| 1038 | // best solution, but we can leave it here until we find the better approach. |
| 1039 | if (!aFromFrameDestruction && |
| 1040 | popup->State().HasState(dom::ElementState::HOVER)) { |
| 1041 | EventStateManager* esm = PresContext()->EventStateManager(); |
| 1042 | esm->SetContentState(nullptr, dom::ElementState::HOVER); |
| 1043 | } |
| 1044 | popup->PopupClosed(aDeselectMenu); |
| 1045 | } |
| 1046 | |
| 1047 | nsPoint nsMenuPopupFrame::AdjustPositionForAnchorAlign( |
| 1048 | nsRect& anchorRect, const nsSize& aPrefSize, FlipStyle& aHFlip, |
| 1049 | FlipStyle& aVFlip) const { |
| 1050 | // flip the anchor and alignment for right-to-left |
| 1051 | int8_t popupAnchor(mPopupAnchor); |
| 1052 | int8_t popupAlign(mPopupAlignment); |
| 1053 | if (IsDirectionRTL()) { |
| 1054 | // no need to flip the centered anchor types vertically |
| 1055 | if (popupAnchor <= POPUPALIGNMENT_LEFTCENTER16) { |
| 1056 | popupAnchor = -popupAnchor; |
| 1057 | } |
| 1058 | popupAlign = -popupAlign; |
| 1059 | } |
| 1060 | |
| 1061 | nsRect originalAnchorRect(anchorRect); |
| 1062 | |
| 1063 | // first, determine at which corner of the anchor the popup should appear |
| 1064 | nsPoint pnt; |
| 1065 | switch (popupAnchor) { |
| 1066 | case POPUPALIGNMENT_LEFTCENTER16: |
| 1067 | pnt = nsPoint(anchorRect.x, anchorRect.y + anchorRect.height / 2); |
| 1068 | anchorRect.y = pnt.y; |
| 1069 | anchorRect.height = 0; |
| 1070 | break; |
| 1071 | case POPUPALIGNMENT_RIGHTCENTER-16: |
| 1072 | pnt = nsPoint(anchorRect.XMost(), anchorRect.y + anchorRect.height / 2); |
| 1073 | anchorRect.y = pnt.y; |
| 1074 | anchorRect.height = 0; |
| 1075 | break; |
| 1076 | case POPUPALIGNMENT_TOPCENTER17: |
| 1077 | pnt = nsPoint(anchorRect.x + anchorRect.width / 2, anchorRect.y); |
| 1078 | anchorRect.x = pnt.x; |
| 1079 | anchorRect.width = 0; |
| 1080 | break; |
| 1081 | case POPUPALIGNMENT_BOTTOMCENTER18: |
| 1082 | pnt = nsPoint(anchorRect.x + anchorRect.width / 2, anchorRect.YMost()); |
| 1083 | anchorRect.x = pnt.x; |
| 1084 | anchorRect.width = 0; |
| 1085 | break; |
| 1086 | case POPUPALIGNMENT_TOPRIGHT-1: |
| 1087 | pnt = anchorRect.TopRight(); |
| 1088 | break; |
| 1089 | case POPUPALIGNMENT_BOTTOMLEFT2: |
| 1090 | pnt = anchorRect.BottomLeft(); |
| 1091 | break; |
| 1092 | case POPUPALIGNMENT_BOTTOMRIGHT-2: |
| 1093 | pnt = anchorRect.BottomRight(); |
| 1094 | break; |
| 1095 | case POPUPALIGNMENT_TOPLEFT1: |
| 1096 | default: |
| 1097 | pnt = anchorRect.TopLeft(); |
| 1098 | break; |
| 1099 | } |
| 1100 | |
| 1101 | // If the alignment is on the right edge of the popup, move the popup left |
| 1102 | // by the width. Similarly, if the alignment is on the bottom edge of the |
| 1103 | // popup, move the popup up by the height. In addition, account for the |
| 1104 | // margins of the popup on the edge on which it is aligned. |
| 1105 | nsMargin margin = GetMargin(); |
| 1106 | switch (popupAlign) { |
| 1107 | case POPUPALIGNMENT_LEFTCENTER16: |
| 1108 | pnt.MoveBy(margin.left, -aPrefSize.height / 2); |
| 1109 | break; |
| 1110 | case POPUPALIGNMENT_RIGHTCENTER-16: |
| 1111 | pnt.MoveBy(-aPrefSize.width - margin.right, -aPrefSize.height / 2); |
| 1112 | break; |
| 1113 | case POPUPALIGNMENT_TOPCENTER17: |
| 1114 | pnt.MoveBy(-aPrefSize.width / 2, margin.top); |
| 1115 | break; |
| 1116 | case POPUPALIGNMENT_BOTTOMCENTER18: |
| 1117 | pnt.MoveBy(-aPrefSize.width / 2, -aPrefSize.height - margin.bottom); |
| 1118 | break; |
| 1119 | case POPUPALIGNMENT_TOPRIGHT-1: |
| 1120 | pnt.MoveBy(-aPrefSize.width - margin.right, margin.top); |
| 1121 | break; |
| 1122 | case POPUPALIGNMENT_BOTTOMLEFT2: |
| 1123 | pnt.MoveBy(margin.left, -aPrefSize.height - margin.bottom); |
| 1124 | break; |
| 1125 | case POPUPALIGNMENT_BOTTOMRIGHT-2: |
| 1126 | pnt.MoveBy(-aPrefSize.width - margin.right, |
| 1127 | -aPrefSize.height - margin.bottom); |
| 1128 | break; |
| 1129 | case POPUPALIGNMENT_TOPLEFT1: |
| 1130 | default: |
| 1131 | pnt.MoveBy(margin.left, margin.top); |
| 1132 | break; |
| 1133 | } |
| 1134 | |
| 1135 | // If we aligning to the selected item in the popup, adjust the vertical |
| 1136 | // position by the height of the menulist label and the selected item's |
| 1137 | // position. |
| 1138 | if (mPosition == POPUPPOSITION_SELECTION10) { |
| 1139 | MOZ_ASSERT(popupAnchor == POPUPALIGNMENT_BOTTOMLEFT ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(popupAnchor == 2 || popupAnchor == -2)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(! !(popupAnchor == 2 || popupAnchor == -2))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("popupAnchor == 2 || popupAnchor == -2" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/xul/nsMenuPopupFrame.cpp" , 1140); AnnotateMozCrashReason("MOZ_ASSERT" "(" "popupAnchor == 2 || popupAnchor == -2" ")"); do { *((volatile int*)__null) = 1140; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 1140 | popupAnchor == POPUPALIGNMENT_BOTTOMRIGHT)do { static_assert( mozilla::detail::AssertionConditionType< decltype(popupAnchor == 2 || popupAnchor == -2)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(! !(popupAnchor == 2 || popupAnchor == -2))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("popupAnchor == 2 || popupAnchor == -2" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/xul/nsMenuPopupFrame.cpp" , 1140); AnnotateMozCrashReason("MOZ_ASSERT" "(" "popupAnchor == 2 || popupAnchor == -2" ")"); do { *((volatile int*)__null) = 1140; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1141 | MOZ_ASSERT(popupAlign == POPUPALIGNMENT_TOPLEFT ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(popupAlign == 1 || popupAlign == -1)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(popupAlign == 1 || popupAlign == -1))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("popupAlign == 1 || popupAlign == -1", "/var/lib/jenkins/workspace/firefox-scan-build/layout/xul/nsMenuPopupFrame.cpp" , 1142); AnnotateMozCrashReason("MOZ_ASSERT" "(" "popupAlign == 1 || popupAlign == -1" ")"); do { *((volatile int*)__null) = 1142; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 1142 | popupAlign == POPUPALIGNMENT_TOPRIGHT)do { static_assert( mozilla::detail::AssertionConditionType< decltype(popupAlign == 1 || popupAlign == -1)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(popupAlign == 1 || popupAlign == -1))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("popupAlign == 1 || popupAlign == -1", "/var/lib/jenkins/workspace/firefox-scan-build/layout/xul/nsMenuPopupFrame.cpp" , 1142); AnnotateMozCrashReason("MOZ_ASSERT" "(" "popupAlign == 1 || popupAlign == -1" ")"); do { *((volatile int*)__null) = 1142; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1143 | |
| 1144 | // Only adjust the popup if it just opened, otherwise the popup will move |
| 1145 | // around if its gets resized or the selection changed. Cache the value in |
| 1146 | // mPositionedOffset and use that instead for any future calculations. |
| 1147 | if (mIsOpenChanged) { |
| 1148 | if (nsIFrame* selectedItemFrame = GetSelectedItemForAlignment()) { |
| 1149 | const nscoord itemHeight = selectedItemFrame->GetRect().height; |
| 1150 | const nscoord itemOffset = |
| 1151 | selectedItemFrame->GetOffsetToIgnoringScrolling(this).y; |
| 1152 | // We want to line-up the anchor rect with the selected item, but if the |
| 1153 | // selected item is outside of our bounds, we don't want to shift the |
| 1154 | // popup up in a way that our box would no longer intersect with the |
| 1155 | // anchor. |
| 1156 | nscoord maxOffset = aPrefSize.height - itemHeight; |
| 1157 | if (const ScrollContainerFrame* sf = GetScrollContainerFrame()) { |
| 1158 | // HACK: We ideally would want to use the offset from the bottom |
| 1159 | // bottom of our scroll-frame to the bottom of our frame (so as to |
| 1160 | // ensure that the bottom of the scrollport is inside the anchor |
| 1161 | // rect). |
| 1162 | // |
| 1163 | // But at this point of the code, the scroll frame may not be laid out |
| 1164 | // with a definite size (might be overflowing us). |
| 1165 | // |
| 1166 | // So, we assume the offset from the bottom is symmetric to the offset |
| 1167 | // from the top. This holds for all the popups where this matters |
| 1168 | // (menulists on macOS, effectively), and seems better than somehow |
| 1169 | // moving the popup after the fact as we used to do. |
| 1170 | maxOffset -= sf->GetOffsetTo(this).y; |
| 1171 | } |
| 1172 | mPositionedOffset = |
| 1173 | originalAnchorRect.height + std::min(itemOffset, maxOffset); |
| 1174 | } |
| 1175 | } |
| 1176 | |
| 1177 | pnt.y -= mPositionedOffset; |
| 1178 | } |
| 1179 | |
| 1180 | // Flipping horizontally is allowed as long as the popup is above or below |
| 1181 | // the anchor. This will happen if both the anchor and alignment are top or |
| 1182 | // both are bottom, but different values. Similarly, flipping vertically is |
| 1183 | // allowed if the popup is to the left or right of the anchor. In this case, |
| 1184 | // the values of the constants are such that both must be positive or both |
| 1185 | // must be negative. A special case, used for overlap, allows flipping |
| 1186 | // vertically as well. |
| 1187 | // If we are flipping in both directions, we want to set a flip style both |
| 1188 | // horizontally and vertically. However, we want to flip on the inside edge |
| 1189 | // of the anchor. Consider the example of a typical dropdown menu. |
| 1190 | // Vertically, we flip the popup on the outside edges of the anchor menu, |
| 1191 | // however horizontally, we want to to use the inside edges so the popup |
| 1192 | // still appears underneath the anchor menu instead of floating off the |
| 1193 | // side of the menu. |
| 1194 | switch (popupAnchor) { |
| 1195 | case POPUPALIGNMENT_LEFTCENTER16: |
| 1196 | case POPUPALIGNMENT_RIGHTCENTER-16: |
| 1197 | aHFlip = FlipStyle_Outside; |
| 1198 | aVFlip = FlipStyle_Inside; |
| 1199 | break; |
| 1200 | case POPUPALIGNMENT_TOPCENTER17: |
| 1201 | case POPUPALIGNMENT_BOTTOMCENTER18: |
| 1202 | aHFlip = FlipStyle_Inside; |
| 1203 | aVFlip = FlipStyle_Outside; |
| 1204 | break; |
| 1205 | default: { |
| 1206 | FlipStyle anchorEdge = |
| 1207 | mFlip == FlipType_Both ? FlipStyle_Inside : FlipStyle_None; |
| 1208 | aHFlip = (popupAnchor == -popupAlign) ? FlipStyle_Outside : anchorEdge; |
| 1209 | if (((popupAnchor > 0) == (popupAlign > 0)) || |
| 1210 | (popupAnchor == POPUPALIGNMENT_TOPLEFT1 && |
| 1211 | popupAlign == POPUPALIGNMENT_TOPLEFT1)) |
| 1212 | aVFlip = FlipStyle_Outside; |
| 1213 | else |
| 1214 | aVFlip = anchorEdge; |
| 1215 | break; |
| 1216 | } |
| 1217 | } |
| 1218 | |
| 1219 | return pnt; |
| 1220 | } |
| 1221 | |
| 1222 | nsIFrame* nsMenuPopupFrame::GetSelectedItemForAlignment() const { |
| 1223 | // This method adjusts a menulist's popup such that the selected item is under |
| 1224 | // the cursor, aligned with the menulist label. |
| 1225 | nsCOMPtr<nsIDOMXULSelectControlElement> select; |
| 1226 | if (mAnchorContent) { |
| 1227 | select = mAnchorContent->AsElement()->AsXULSelectControl(); |
| 1228 | } |
| 1229 | |
| 1230 | if (!select) { |
| 1231 | // If there isn't an anchor, then try just getting the parent of the popup. |
| 1232 | select = mContent->GetParent()->AsElement()->AsXULSelectControl(); |
| 1233 | if (!select) { |
| 1234 | return nullptr; |
| 1235 | } |
| 1236 | } |
| 1237 | |
| 1238 | nsCOMPtr<Element> selectedElement; |
| 1239 | select->GetSelectedItem(getter_AddRefs(selectedElement)); |
| 1240 | return selectedElement ? selectedElement->GetPrimaryFrame() : nullptr; |
| 1241 | } |
| 1242 | |
| 1243 | nscoord nsMenuPopupFrame::SlideOrResize(nscoord& aScreenPoint, nscoord aSize, |
| 1244 | nscoord aScreenBegin, |
| 1245 | nscoord aScreenEnd, |
| 1246 | nscoord* aOffset) const { |
| 1247 | // The popup may be positioned such that either the left/top or bottom/right |
| 1248 | // is outside the screen - but never both. |
| 1249 | nscoord newPos = |
| 1250 | std::max(aScreenBegin, std::min(aScreenEnd - aSize, aScreenPoint)); |
| 1251 | *aOffset = newPos - aScreenPoint; |
| 1252 | aScreenPoint = newPos; |
| 1253 | return std::min(aSize, aScreenEnd - aScreenPoint); |
| 1254 | } |
| 1255 | |
| 1256 | nscoord nsMenuPopupFrame::FlipOrResize(nscoord& aScreenPoint, nscoord aSize, |
| 1257 | nscoord aScreenBegin, nscoord aScreenEnd, |
| 1258 | nscoord aAnchorBegin, nscoord aAnchorEnd, |
| 1259 | nscoord aMarginBegin, nscoord aMarginEnd, |
| 1260 | FlipStyle aFlip, bool aEndAligned, |
| 1261 | bool* aFlipSide) const { |
| 1262 | // The flip side argument will be set to true if there wasn't room and we |
| 1263 | // flipped to the opposite side. |
| 1264 | *aFlipSide = false; |
| 1265 | |
| 1266 | // all of the coordinates used here are in app units relative to the screen |
| 1267 | nscoord popupSize = aSize; |
| 1268 | if (aScreenPoint < aScreenBegin) { |
| 1269 | // at its current position, the popup would extend past the left or top |
| 1270 | // edge of the screen, so it will have to be moved or resized. |
| 1271 | if (aFlip) { |
| 1272 | // for inside flips, we flip on the opposite side of the anchor |
| 1273 | nscoord startpos = aFlip == FlipStyle_Outside ? aAnchorBegin : aAnchorEnd; |
| 1274 | nscoord endpos = aFlip == FlipStyle_Outside ? aAnchorEnd : aAnchorBegin; |
| 1275 | |
| 1276 | // check whether there is more room to the left and right (or top and |
| 1277 | // bottom) of the anchor and put the popup on the side with more room. |
| 1278 | if (startpos - aScreenBegin >= aScreenEnd - endpos) { |
| 1279 | aScreenPoint = aScreenBegin; |
| 1280 | popupSize = startpos - aScreenPoint - aMarginEnd; |
| 1281 | *aFlipSide = !aEndAligned; |
| 1282 | } else { |
| 1283 | // If the newly calculated position is different than the existing |
| 1284 | // position, flip such that the popup is to the right or bottom of the |
| 1285 | // anchor point instead . However, when flipping use the same margin |
| 1286 | // size. |
| 1287 | nscoord newScreenPoint = endpos + aMarginEnd; |
| 1288 | if (newScreenPoint != aScreenPoint) { |
| 1289 | *aFlipSide = aEndAligned; |
| 1290 | aScreenPoint = newScreenPoint; |
| 1291 | // check if the new position is still off the right or bottom edge of |
| 1292 | // the screen. If so, resize the popup. |
| 1293 | if (aScreenPoint + aSize > aScreenEnd) { |
| 1294 | popupSize = aScreenEnd - aScreenPoint; |
| 1295 | } |
| 1296 | } |
| 1297 | } |
| 1298 | } else { |
| 1299 | aScreenPoint = aScreenBegin; |
| 1300 | } |
| 1301 | } else if (aScreenPoint + aSize > aScreenEnd) { |
| 1302 | // at its current position, the popup would extend past the right or |
| 1303 | // bottom edge of the screen, so it will have to be moved or resized. |
| 1304 | if (aFlip) { |
| 1305 | // for inside flips, we flip on the opposite side of the anchor |
| 1306 | nscoord startpos = aFlip == FlipStyle_Outside ? aAnchorBegin : aAnchorEnd; |
| 1307 | nscoord endpos = aFlip == FlipStyle_Outside ? aAnchorEnd : aAnchorBegin; |
| 1308 | |
| 1309 | // check whether there is more room to the left and right (or top and |
| 1310 | // bottom) of the anchor and put the popup on the side with more room. |
| 1311 | if (aScreenEnd - endpos >= startpos - aScreenBegin) { |
| 1312 | *aFlipSide = aEndAligned; |
| 1313 | if (mIsContextMenu) { |
| 1314 | aScreenPoint = aScreenEnd - aSize; |
| 1315 | } else { |
| 1316 | aScreenPoint = endpos + aMarginBegin; |
| 1317 | popupSize = aScreenEnd - aScreenPoint; |
| 1318 | } |
| 1319 | } else { |
| 1320 | // if the newly calculated position is different than the existing |
| 1321 | // position, we flip such that the popup is to the left or top of the |
| 1322 | // anchor point instead. |
| 1323 | nscoord newScreenPoint = startpos - aSize - aMarginBegin; |
| 1324 | if (newScreenPoint != aScreenPoint) { |
| 1325 | *aFlipSide = !aEndAligned; |
| 1326 | aScreenPoint = newScreenPoint; |
| 1327 | |
| 1328 | // check if the new position is still off the left or top edge of the |
| 1329 | // screen. If so, resize the popup. |
| 1330 | if (aScreenPoint < aScreenBegin) { |
| 1331 | aScreenPoint = aScreenBegin; |
| 1332 | if (!mIsContextMenu) { |
| 1333 | popupSize = startpos - aScreenPoint - aMarginBegin; |
| 1334 | } |
| 1335 | } |
| 1336 | } |
| 1337 | } |
| 1338 | } else { |
| 1339 | aScreenPoint = aScreenEnd - aSize; |
| 1340 | } |
| 1341 | } |
| 1342 | |
| 1343 | // Make sure that the point is within the screen boundaries and that the |
| 1344 | // size isn't off the edge of the screen. This can happen when a large |
| 1345 | // positive or negative margin is used. |
| 1346 | if (aScreenPoint < aScreenBegin) { |
| 1347 | aScreenPoint = aScreenBegin; |
| 1348 | } |
| 1349 | if (aScreenPoint > aScreenEnd) { |
| 1350 | aScreenPoint = aScreenEnd - aSize; |
| 1351 | } |
| 1352 | |
| 1353 | // If popupSize ended up being negative, or the original size was actually |
| 1354 | // smaller than the calculated popup size, just use the original size instead. |
| 1355 | if (popupSize <= 0 || aSize < popupSize) { |
| 1356 | popupSize = aSize; |
| 1357 | } |
| 1358 | |
| 1359 | return std::min(popupSize, aScreenEnd - aScreenPoint); |
| 1360 | } |
| 1361 | |
| 1362 | nsRect nsMenuPopupFrame::ComputeAnchorRect(nsPresContext* aRootPresContext, |
| 1363 | nsIFrame* aAnchorFrame) const { |
| 1364 | // Get the root frame for a reference |
| 1365 | nsIFrame* rootFrame = aRootPresContext->PresShell()->GetRootFrame(); |
| 1366 | |
| 1367 | // The dimensions of the anchor |
| 1368 | nsRect anchorRect = aAnchorFrame->GetRectRelativeToSelf(); |
| 1369 | |
| 1370 | // Relative to the root |
| 1371 | anchorRect = nsLayoutUtils::TransformFrameRectToAncestor( |
| 1372 | aAnchorFrame, anchorRect, rootFrame); |
| 1373 | // Relative to the screen |
| 1374 | anchorRect.MoveBy(rootFrame->GetScreenRectInAppUnits().TopLeft()); |
| 1375 | |
| 1376 | // In its own app units |
| 1377 | return anchorRect.ScaleToOtherAppUnitsRoundOut( |
| 1378 | aRootPresContext->AppUnitsPerDevPixel(), |
| 1379 | PresContext()->AppUnitsPerDevPixel()); |
| 1380 | } |
| 1381 | |
| 1382 | static nsIFrame* MaybeDelegatedAnchorFrame(nsIFrame* aFrame) { |
| 1383 | if (!aFrame) { |
| 1384 | return nullptr; |
| 1385 | } |
| 1386 | if (auto* element = Element::FromNodeOrNull(aFrame->GetContent())) { |
| 1387 | if (element->HasAttr(nsGkAtoms::delegatesanchor)) { |
| 1388 | for (nsIFrame* f : aFrame->PrincipalChildList()) { |
| 1389 | if (!f->IsPlaceholderFrame()) { |
| 1390 | return f; |
| 1391 | } |
| 1392 | } |
| 1393 | } |
| 1394 | } |
| 1395 | return aFrame; |
| 1396 | } |
| 1397 | |
| 1398 | auto nsMenuPopupFrame::GetRects(const nsSize& aPrefSize) const -> Rects { |
| 1399 | if (NS_WARN_IF(aPrefSize == nsSize(-1, -1))NS_warn_if_impl(aPrefSize == nsSize(-1, -1), "aPrefSize == nsSize(-1, -1)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/xul/nsMenuPopupFrame.cpp" , 1399)) { |
| 1400 | // Return early if the popup hasn't been laid out yet. On Windows, this can |
| 1401 | // happen when using a drag popup before it opens. |
| 1402 | return {}; |
| 1403 | } |
| 1404 | |
| 1405 | nsPresContext* pc = PresContext(); |
| 1406 | nsIFrame* rootFrame = pc->PresShell()->GetRootFrame(); |
| 1407 | NS_ASSERTION(rootFrame->GetView() && GetView() &&do { if (!(rootFrame->GetView() && GetView() && rootFrame->GetView() == GetView()->GetParent())) { NS_DebugBreak (NS_DEBUG_ASSERTION, "rootFrame's view is not our view's parent???" , "rootFrame->GetView() && GetView() && rootFrame->GetView() == GetView()->GetParent()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/xul/nsMenuPopupFrame.cpp" , 1409); MOZ_PretendNoReturn(); } } while (0) |
| 1408 | rootFrame->GetView() == GetView()->GetParent(),do { if (!(rootFrame->GetView() && GetView() && rootFrame->GetView() == GetView()->GetParent())) { NS_DebugBreak (NS_DEBUG_ASSERTION, "rootFrame's view is not our view's parent???" , "rootFrame->GetView() && GetView() && rootFrame->GetView() == GetView()->GetParent()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/xul/nsMenuPopupFrame.cpp" , 1409); MOZ_PretendNoReturn(); } } while (0) |
| 1409 | "rootFrame's view is not our view's parent???")do { if (!(rootFrame->GetView() && GetView() && rootFrame->GetView() == GetView()->GetParent())) { NS_DebugBreak (NS_DEBUG_ASSERTION, "rootFrame's view is not our view's parent???" , "rootFrame->GetView() && GetView() && rootFrame->GetView() == GetView()->GetParent()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/xul/nsMenuPopupFrame.cpp" , 1409); MOZ_PretendNoReturn(); } } while (0); |
| 1410 | |
| 1411 | // Indicators of whether the popup should be flipped or resized. |
| 1412 | FlipStyle hFlip = FlipStyle_None, vFlip = FlipStyle_None; |
| 1413 | |
| 1414 | const nsMargin margin = GetMargin(); |
| 1415 | |
| 1416 | // the screen rectangle of the root frame, in dev pixels. |
| 1417 | const nsRect rootScreenRect = rootFrame->GetScreenRectInAppUnits(); |
| 1418 | |
| 1419 | const bool isNoAutoHide = IsNoAutoHide(); |
| 1420 | const PopupLevel popupLevel = GetPopupLevel(isNoAutoHide); |
| 1421 | |
| 1422 | Rects result; |
| 1423 | |
| 1424 | // Set the popup's size to the preferred size. Below, this size will be |
| 1425 | // adjusted to fit on the screen or within the content area. If the anchor is |
| 1426 | // sized to the popup, use the anchor's width instead of the preferred width. |
| 1427 | result.mUsedRect = nsRect(nsPoint(), aPrefSize); |
| 1428 | |
| 1429 | const bool anchored = IsAnchored(); |
| 1430 | if (anchored) { |
| 1431 | // In order to deal with transforms, we need the root prescontext: |
| 1432 | nsPresContext* rootPc = pc->GetRootPresContext(); |
| 1433 | if (NS_WARN_IF(!rootPc)NS_warn_if_impl(!rootPc, "!rootPc", "/var/lib/jenkins/workspace/firefox-scan-build/layout/xul/nsMenuPopupFrame.cpp" , 1433)) { |
| 1434 | // If we can't reach a root pres context, don't bother continuing. |
| 1435 | return result; |
| 1436 | } |
| 1437 | |
| 1438 | result.mAnchorRect = result.mUntransformedAnchorRect = [&] { |
| 1439 | // If anchored to a rectangle, use that rectangle. Otherwise, determine |
| 1440 | // the rectangle from the anchor. |
| 1441 | if (mAnchorType == MenuPopupAnchorType::Rect) { |
| 1442 | return mScreenRect; |
| 1443 | } |
| 1444 | // if the frame is not specified, use the anchor node passed to OpenPopup. |
| 1445 | // If that wasn't specified either, use the root frame. Note that |
| 1446 | // mAnchorContent might be a different document so its presshell must be |
| 1447 | // used. |
| 1448 | nsIFrame* anchorFrame = GetAnchorFrame(); |
| 1449 | if (!anchorFrame) { |
| 1450 | return rootScreenRect; |
| 1451 | } |
| 1452 | return ComputeAnchorRect(rootPc, anchorFrame); |
| 1453 | }(); |
| 1454 | |
| 1455 | // if we are anchored, there are certain things we don't want to do when |
| 1456 | // repositioning the popup to fit on the screen, such as end up positioned |
| 1457 | // over the anchor, for instance a popup appearing over the menu label. |
| 1458 | // When doing this reposition, we want to move the popup to the side with |
| 1459 | // the most room. The combination of anchor and alignment dictate if we |
| 1460 | // readjust above/below or to the left/right. |
| 1461 | if (mAnchorContent || mAnchorType == MenuPopupAnchorType::Rect) { |
| 1462 | // move the popup according to the anchor and alignment. This will also |
| 1463 | // tell us which axis the popup is flush against in case we have to move |
| 1464 | // it around later. The AdjustPositionForAnchorAlign method accounts for |
| 1465 | // the popup's margin. |
| 1466 | result.mUsedRect.MoveTo(AdjustPositionForAnchorAlign( |
| 1467 | result.mAnchorRect, aPrefSize, hFlip, vFlip)); |
| 1468 | } else { |
| 1469 | // With no anchor, the popup is positioned relative to the root frame. |
| 1470 | result.mUsedRect.MoveTo(result.mAnchorRect.TopLeft() + |
| 1471 | nsPoint(margin.left, margin.top)); |
| 1472 | } |
| 1473 | |
| 1474 | // mXPos and mYPos specify an additional offset passed to OpenPopup that |
| 1475 | // should be added to the position. We also add the offset to the anchor |
| 1476 | // pos so a later flip/resize takes the offset into account. |
| 1477 | // FIXME(emilio): Wayland doesn't seem to be accounting for this offset |
| 1478 | // anywhere, and it probably should. |
| 1479 | { |
| 1480 | nsPoint offset(CSSPixel::ToAppUnits(mXPos), CSSPixel::ToAppUnits(mYPos)); |
| 1481 | if (IsDirectionRTL()) { |
| 1482 | offset.x = -offset.x; |
| 1483 | } |
| 1484 | result.mUsedRect.MoveBy(offset); |
| 1485 | result.mAnchorRect.MoveBy(offset); |
| 1486 | } |
| 1487 | } else { |
| 1488 | // Not anchored, use mScreenRect |
| 1489 | result.mUsedRect.MoveTo(mScreenRect.TopLeft()); |
| 1490 | result.mAnchorRect = result.mUntransformedAnchorRect = |
| 1491 | nsRect(mScreenRect.TopLeft(), nsSize()); |
| 1492 | |
| 1493 | // Right-align RTL context menus, and apply margin and offsets as per the |
| 1494 | // platform conventions. |
| 1495 | if (mIsContextMenu && IsDirectionRTL()) { |
| 1496 | result.mUsedRect.x -= aPrefSize.Width(); |
| 1497 | result.mUsedRect.MoveBy(-margin.right, margin.top); |
| 1498 | } else { |
| 1499 | result.mUsedRect.MoveBy(margin.left, margin.top); |
| 1500 | } |
| 1501 | #ifdef XP_MACOSX |
| 1502 | // OSX tooltips follow standard flip rule but other popups flip horizontally |
| 1503 | // not vertically |
| 1504 | if (mPopupType == PopupType::Tooltip) { |
| 1505 | vFlip = FlipStyle_Outside; |
| 1506 | } else { |
| 1507 | hFlip = FlipStyle_Outside; |
| 1508 | } |
| 1509 | #else |
| 1510 | // Other OS screen positioned popups can be flipped vertically but never |
| 1511 | // horizontally |
| 1512 | vFlip = FlipStyle_Outside; |
| 1513 | #endif // #ifdef XP_MACOSX |
| 1514 | } |
| 1515 | |
| 1516 | const int32_t a2d = pc->AppUnitsPerDevPixel(); |
| 1517 | |
| 1518 | nsView* view = GetView(); |
| 1519 | NS_ASSERTION(view, "popup with no view")do { if (!(view)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "popup with no view" , "view", "/var/lib/jenkins/workspace/firefox-scan-build/layout/xul/nsMenuPopupFrame.cpp" , 1519); MOZ_PretendNoReturn(); } } while (0); |
| 1520 | |
| 1521 | nsIWidget* widget = view->GetWidget(); |
| 1522 | |
| 1523 | // If a panel has flip="none", don't constrain or flip it. |
| 1524 | // Also, always do this for content shells, so that the popup doesn't extend |
| 1525 | // outside the containing frame. |
| 1526 | if (mInContentShell || mFlip != FlipType_None) { |
| 1527 | const Maybe<nsRect> constraintRect = |
| 1528 | GetConstraintRect(result.mAnchorRect, rootScreenRect, popupLevel); |
| 1529 | |
| 1530 | if (constraintRect) { |
| 1531 | // Ensure that anchorRect is on the constraint rect. |
| 1532 | result.mAnchorRect = result.mAnchorRect.Intersect(*constraintRect); |
| 1533 | // Shrink the popup down if it is larger than the constraint size |
| 1534 | if (result.mUsedRect.width > constraintRect->width) { |
| 1535 | result.mUsedRect.width = constraintRect->width; |
| 1536 | } |
| 1537 | if (result.mUsedRect.height > constraintRect->height) { |
| 1538 | result.mUsedRect.height = constraintRect->height; |
| 1539 | } |
| 1540 | result.mConstrainedByLayout = true; |
| 1541 | } |
| 1542 | |
| 1543 | if (IS_WAYLAND_DISPLAY()mozilla::widget::GdkIsWaylandDisplay() && widget) { |
| 1544 | // Shrink the popup down if it's larger than popup size received from |
| 1545 | // Wayland compositor. We don't know screen size on Wayland so this is the |
| 1546 | // only info we have there. |
| 1547 | const nsSize waylandSize = LayoutDeviceIntRect::ToAppUnits( |
| 1548 | widget->GetMoveToRectPopupSize(), a2d); |
| 1549 | if (waylandSize.width > 0 && result.mUsedRect.width > waylandSize.width) { |
| 1550 | LOG_WAYLAND("Wayland constraint width [%p]: %d to %d", widget,do { const ::mozilla::LogModule* moz_real_module = gWidgetPopupLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Wayland constraint width [%p]: %d to %d" , widget, result.mUsedRect.width, waylandSize.width); } } while (0) |
| 1551 | result.mUsedRect.width, waylandSize.width)do { const ::mozilla::LogModule* moz_real_module = gWidgetPopupLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Wayland constraint width [%p]: %d to %d" , widget, result.mUsedRect.width, waylandSize.width); } } while (0); |
| 1552 | result.mUsedRect.width = waylandSize.width; |
| 1553 | } |
| 1554 | if (waylandSize.height > 0 && |
| 1555 | result.mUsedRect.height > waylandSize.height) { |
| 1556 | LOG_WAYLAND("Wayland constraint height [%p]: %d to %d", widget,do { const ::mozilla::LogModule* moz_real_module = gWidgetPopupLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Wayland constraint height [%p]: %d to %d" , widget, result.mUsedRect.height, waylandSize.height); } } while (0) |
| 1557 | result.mUsedRect.height, waylandSize.height)do { const ::mozilla::LogModule* moz_real_module = gWidgetPopupLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Wayland constraint height [%p]: %d to %d" , widget, result.mUsedRect.height, waylandSize.height); } } while (0); |
| 1558 | result.mUsedRect.height = waylandSize.height; |
| 1559 | } |
| 1560 | if (RefPtr<widget::Screen> s = widget->GetWidgetScreen()) { |
| 1561 | const nsSize screenSize = |
| 1562 | LayoutDeviceIntSize::ToAppUnits(s->GetAvailRect().Size(), a2d); |
| 1563 | if (result.mUsedRect.height > screenSize.height) { |
| 1564 | LOG_WAYLAND("Wayland constraint height to screen [%p]: %d to %d",do { const ::mozilla::LogModule* moz_real_module = gWidgetPopupLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Wayland constraint height to screen [%p]: %d to %d" , widget, result.mUsedRect.height, screenSize.height); } } while (0) |
| 1565 | widget, result.mUsedRect.height, screenSize.height)do { const ::mozilla::LogModule* moz_real_module = gWidgetPopupLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Wayland constraint height to screen [%p]: %d to %d" , widget, result.mUsedRect.height, screenSize.height); } } while (0); |
| 1566 | result.mUsedRect.height = screenSize.height; |
| 1567 | } |
| 1568 | if (result.mUsedRect.width > screenSize.width) { |
| 1569 | LOG_WAYLAND("Wayland constraint widthto screen [%p]: %d to %d",do { const ::mozilla::LogModule* moz_real_module = gWidgetPopupLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Wayland constraint widthto screen [%p]: %d to %d" , widget, result.mUsedRect.width, screenSize.width); } } while (0) |
| 1570 | widget, result.mUsedRect.width, screenSize.width)do { const ::mozilla::LogModule* moz_real_module = gWidgetPopupLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Wayland constraint widthto screen [%p]: %d to %d" , widget, result.mUsedRect.width, screenSize.width); } } while (0); |
| 1571 | result.mUsedRect.width = screenSize.width; |
| 1572 | } |
| 1573 | } |
| 1574 | } |
| 1575 | |
| 1576 | // At this point the anchor (anchorRect) is within the available screen |
| 1577 | // area (constraintRect) and the popup is known to be no larger than the |
| 1578 | // screen. |
| 1579 | if (constraintRect) { |
| 1580 | // We might want to "slide" an arrow if the panel is of the correct type - |
| 1581 | // but we can only slide on one axis - the other axis must be "flipped or |
| 1582 | // resized" as normal. |
| 1583 | bool slideHorizontal = false, slideVertical = false; |
| 1584 | if (mFlip == FlipType_Slide) { |
| 1585 | int8_t position = GetAlignmentPosition(); |
| 1586 | slideHorizontal = position >= POPUPPOSITION_BEFORESTART0 && |
| 1587 | position <= POPUPPOSITION_AFTEREND3; |
| 1588 | slideVertical = position >= POPUPPOSITION_STARTBEFORE4 && |
| 1589 | position <= POPUPPOSITION_ENDAFTER7; |
| 1590 | } |
| 1591 | |
| 1592 | // Next, check if there is enough space to show the popup at full size |
| 1593 | // when positioned at screenPoint. If not, flip the popups to the opposite |
| 1594 | // side of their anchor point, or resize them as necessary. |
| 1595 | if (slideHorizontal) { |
| 1596 | result.mUsedRect.width = SlideOrResize( |
| 1597 | result.mUsedRect.x, result.mUsedRect.width, constraintRect->x, |
| 1598 | constraintRect->XMost(), &result.mAlignmentOffset); |
| 1599 | } else { |
| 1600 | const bool endAligned = |
| 1601 | IsDirectionRTL() |
| 1602 | ? mPopupAlignment == POPUPALIGNMENT_TOPLEFT1 || |
| 1603 | mPopupAlignment == POPUPALIGNMENT_BOTTOMLEFT2 || |
| 1604 | mPopupAlignment == POPUPALIGNMENT_LEFTCENTER16 |
| 1605 | : mPopupAlignment == POPUPALIGNMENT_TOPRIGHT-1 || |
| 1606 | mPopupAlignment == POPUPALIGNMENT_BOTTOMRIGHT-2 || |
| 1607 | mPopupAlignment == POPUPALIGNMENT_RIGHTCENTER-16; |
| 1608 | result.mUsedRect.width = FlipOrResize( |
| 1609 | result.mUsedRect.x, result.mUsedRect.width, constraintRect->x, |
| 1610 | constraintRect->XMost(), result.mAnchorRect.x, |
| 1611 | result.mAnchorRect.XMost(), margin.left, margin.right, hFlip, |
| 1612 | endAligned, &result.mHFlip); |
| 1613 | } |
| 1614 | if (slideVertical) { |
| 1615 | result.mUsedRect.height = SlideOrResize( |
| 1616 | result.mUsedRect.y, result.mUsedRect.height, constraintRect->y, |
| 1617 | constraintRect->YMost(), &result.mAlignmentOffset); |
| 1618 | } else { |
| 1619 | bool endAligned = mPopupAlignment == POPUPALIGNMENT_BOTTOMLEFT2 || |
| 1620 | mPopupAlignment == POPUPALIGNMENT_BOTTOMRIGHT-2 || |
| 1621 | mPopupAlignment == POPUPALIGNMENT_BOTTOMCENTER18; |
| 1622 | result.mUsedRect.height = FlipOrResize( |
| 1623 | result.mUsedRect.y, result.mUsedRect.height, constraintRect->y, |
| 1624 | constraintRect->YMost(), result.mAnchorRect.y, |
| 1625 | result.mAnchorRect.YMost(), margin.top, margin.bottom, vFlip, |
| 1626 | endAligned, &result.mVFlip); |
| 1627 | } |
| 1628 | |
| 1629 | #ifdef DEBUG1 |
| 1630 | NS_ASSERTION(constraintRect->Contains(result.mUsedRect),do { if (!(constraintRect->Contains(result.mUsedRect))) { NS_DebugBreak (NS_DEBUG_ASSERTION, "Popup is offscreen", "constraintRect->Contains(result.mUsedRect)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/xul/nsMenuPopupFrame.cpp" , 1631); MOZ_PretendNoReturn(); } } while (0) |
| 1631 | "Popup is offscreen")do { if (!(constraintRect->Contains(result.mUsedRect))) { NS_DebugBreak (NS_DEBUG_ASSERTION, "Popup is offscreen", "constraintRect->Contains(result.mUsedRect)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/xul/nsMenuPopupFrame.cpp" , 1631); MOZ_PretendNoReturn(); } } while (0); |
| 1632 | if (!constraintRect->Contains(result.mUsedRect)) { |
| 1633 | NS_WARNING(nsPrintfCString("Popup is offscreen (%s vs. %s)",NS_DebugBreak(NS_DEBUG_WARNING, nsPrintfCString("Popup is offscreen (%s vs. %s)" , ToString(constraintRect).c_str(), ToString(result.mUsedRect ).c_str()) .get(), nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/layout/xul/nsMenuPopupFrame.cpp" , 1636) |
| 1634 | ToString(constraintRect).c_str(),NS_DebugBreak(NS_DEBUG_WARNING, nsPrintfCString("Popup is offscreen (%s vs. %s)" , ToString(constraintRect).c_str(), ToString(result.mUsedRect ).c_str()) .get(), nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/layout/xul/nsMenuPopupFrame.cpp" , 1636) |
| 1635 | ToString(result.mUsedRect).c_str())NS_DebugBreak(NS_DEBUG_WARNING, nsPrintfCString("Popup is offscreen (%s vs. %s)" , ToString(constraintRect).c_str(), ToString(result.mUsedRect ).c_str()) .get(), nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/layout/xul/nsMenuPopupFrame.cpp" , 1636) |
| 1636 | .get())NS_DebugBreak(NS_DEBUG_WARNING, nsPrintfCString("Popup is offscreen (%s vs. %s)" , ToString(constraintRect).c_str(), ToString(result.mUsedRect ).c_str()) .get(), nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/layout/xul/nsMenuPopupFrame.cpp" , 1636); |
| 1637 | } |
| 1638 | #endif |
| 1639 | } |
| 1640 | } |
| 1641 | // snap the popup's position in screen coordinates to device pixels, see |
| 1642 | // bug 622507, bug 961431 |
| 1643 | result.mUsedRect.x = pc->RoundAppUnitsToNearestDevPixels(result.mUsedRect.x); |
| 1644 | result.mUsedRect.y = pc->RoundAppUnitsToNearestDevPixels(result.mUsedRect.y); |
| 1645 | |
| 1646 | // determine the x and y position of the view by subtracting the desired |
| 1647 | // screen position from the screen position of the root frame. |
| 1648 | result.mViewPoint = result.mUsedRect.TopLeft() - rootScreenRect.TopLeft(); |
| 1649 | |
| 1650 | // Offset the position by the width and height of the borders and titlebar. |
| 1651 | // Even though GetClientOffset should return (0, 0) when there is no titlebar |
| 1652 | // or borders, we skip these calculations anyway for non-panels to save time |
| 1653 | // since they will never have a titlebar. |
| 1654 | if (mPopupType == PopupType::Panel && widget) { |
| 1655 | result.mClientOffset = widget->GetClientOffset(); |
| 1656 | result.mViewPoint += |
| 1657 | LayoutDeviceIntPoint::ToAppUnits(result.mClientOffset, a2d); |
| 1658 | } |
| 1659 | |
| 1660 | return result; |
| 1661 | } |
| 1662 | |
| 1663 | void nsMenuPopupFrame::SetPopupPosition(bool aIsMove) { |
| 1664 | if (aIsMove && (mPrefSize.width == -1 || mPrefSize.height == -1)) { |
| 1665 | return; |
| 1666 | } |
| 1667 | |
| 1668 | auto rects = GetRects(mPrefSize); |
| 1669 | if (rects.mUsedRect.Size() != mRect.Size()) { |
| 1670 | MOZ_ASSERT(!HasAnyStateBits(NS_FRAME_IN_REFLOW))do { static_assert( mozilla::detail::AssertionConditionType< decltype(!HasAnyStateBits(NS_FRAME_IN_REFLOW))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!HasAnyStateBits(NS_FRAME_IN_REFLOW )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!HasAnyStateBits(NS_FRAME_IN_REFLOW)", "/var/lib/jenkins/workspace/firefox-scan-build/layout/xul/nsMenuPopupFrame.cpp" , 1670); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!HasAnyStateBits(NS_FRAME_IN_REFLOW)" ")"); do { *((volatile int*)__null) = 1670; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1671 | // We need to resize on top of moving, trigger an actual reflow. |
| 1672 | PresShell()->FrameNeedsReflow(this, IntrinsicDirty::FrameAndAncestors, |
| 1673 | NS_FRAME_IS_DIRTY); |
| 1674 | return; |
| 1675 | } |
| 1676 | PerformMove(rects); |
| 1677 | } |
| 1678 | |
| 1679 | void nsMenuPopupFrame::PerformMove(const Rects& aRects) { |
| 1680 | auto* ps = PresShell(); |
| 1681 | |
| 1682 | // We're just moving, sync frame position and offset as needed. |
| 1683 | ps->GetViewManager()->MoveViewTo(GetView(), aRects.mViewPoint.x, |
| 1684 | aRects.mViewPoint.y); |
| 1685 | |
| 1686 | // Now that we've positioned the view, sync up the frame's origin. |
| 1687 | nsBlockFrame::SetPosition(aRects.mViewPoint - |
| 1688 | GetParent()->GetOffsetTo(ps->GetRootFrame())); |
| 1689 | |
| 1690 | // If the popup is in the positioned state or if it is shown and the position |
| 1691 | // or size changed, dispatch a popuppositioned event if the popup wants it. |
| 1692 | if (mPopupState == ePopupPositioning || |
| 1693 | (mPopupState == ePopupShown && |
| 1694 | !aRects.mUsedRect.IsEqualEdges(mUsedScreenRect)) || |
| 1695 | (mPopupState == ePopupShown && |
| 1696 | aRects.mAlignmentOffset != mAlignmentOffset)) { |
| 1697 | mUsedScreenRect = aRects.mUsedRect; |
| 1698 | if (!HasAnyStateBits(NS_FRAME_FIRST_REFLOW) && !mPendingPositionedEvent) { |
| 1699 | mPendingPositionedEvent = |
| 1700 | nsXULPopupPositionedEvent::DispatchIfNeeded(mContent->AsElement()); |
| 1701 | } |
| 1702 | } |
| 1703 | |
| 1704 | if (!mPositionedByMoveToRect) { |
| 1705 | mUntransformedAnchorRect = aRects.mUntransformedAnchorRect; |
| 1706 | } |
| 1707 | |
| 1708 | mAlignmentOffset = aRects.mAlignmentOffset; |
| 1709 | mLastClientOffset = aRects.mClientOffset; |
| 1710 | mHFlip = aRects.mHFlip; |
| 1711 | mVFlip = aRects.mVFlip; |
| 1712 | mConstrainedByLayout = aRects.mConstrainedByLayout; |
| 1713 | |
| 1714 | // If this is a noautohide popup, set the screen coordinates of the popup. |
| 1715 | // This way, the popup stays at the location where it was opened even when the |
| 1716 | // window is moved. Popups at the parent level follow the parent window as it |
| 1717 | // is moved and remained anchored, so we want to maintain the anchoring |
| 1718 | // instead. |
| 1719 | // |
| 1720 | // FIXME: This suffers from issues like bug 1823552, where constraints imposed |
| 1721 | // by the anchor are lost, but this is super-old behavior. |
| 1722 | const bool fixPositionToPoint = |
| 1723 | IsNoAutoHide() && (GetPopupLevel() != PopupLevel::Parent || |
| 1724 | mAnchorType == MenuPopupAnchorType::Rect); |
| 1725 | if (fixPositionToPoint) { |
| 1726 | // Account for the margin that will end up being added to the screen |
| 1727 | // coordinate the next time SetPopupPosition is called. |
| 1728 | const auto& margin = GetMargin(); |
| 1729 | mAnchorType = MenuPopupAnchorType::Point; |
| 1730 | mScreenRect.x = aRects.mUsedRect.x - margin.left; |
| 1731 | mScreenRect.y = aRects.mUsedRect.y - margin.top; |
| 1732 | } |
| 1733 | |
| 1734 | // For anchored popups that shouldn't follow the anchor, fix the original |
| 1735 | // anchor rect. |
| 1736 | if (IsAnchored() && !ShouldFollowAnchor() && !mUsedScreenRect.IsEmpty() && |
| 1737 | mAnchorType != MenuPopupAnchorType::Rect) { |
| 1738 | mAnchorType = MenuPopupAnchorType::Rect; |
| 1739 | mScreenRect = aRects.mUntransformedAnchorRect; |
| 1740 | } |
| 1741 | |
| 1742 | // NOTE(emilio): This call below is kind of a workaround, but we need to do |
| 1743 | // this here because some position changes don't go through the |
| 1744 | // view system -> popup manager, like: |
| 1745 | // |
| 1746 | // https://searchfox.org/mozilla-central/rev/477950cf9ca9c9bb5ff6f34e0d0f6ca4718ea798/widget/gtk/nsWindow.cpp#3847 |
| 1747 | // |
| 1748 | // So this might be the last chance we have to set the remote browser's |
| 1749 | // position. |
| 1750 | // |
| 1751 | // Ultimately this probably wants to get fixed in the widget size of things, |
| 1752 | // but given this is worst-case a redundant DOM traversal, and that popups |
| 1753 | // usually don't have all that much content, this is probably an ok |
| 1754 | // workaround. |
| 1755 | WidgetPositionOrSizeDidChange(); |
| 1756 | } |
| 1757 | |
| 1758 | void nsMenuPopupFrame::WidgetPositionOrSizeDidChange() { |
| 1759 | // In the case this popup has remote contents having OOP iframes, it's |
| 1760 | // possible that OOP iframe's nsSubDocumentFrame has been already reflowed |
| 1761 | // thus, we will never have a chance to tell this parent browser's position |
| 1762 | // update to the OOP documents without notifying it explicitly. |
| 1763 | if (!HasRemoteContent()) { |
| 1764 | return; |
| 1765 | } |
| 1766 | for (nsIContent* content = mContent->GetFirstChild(); content; |
| 1767 | content = content->GetNextNode(mContent)) { |
| 1768 | if (content->IsXULElement(nsGkAtoms::browser) && |
| 1769 | content->AsElement()->AttrValueIs(kNameSpaceID_None, nsGkAtoms::remote, |
| 1770 | nsGkAtoms::_true, eIgnoreCase)) { |
| 1771 | if (auto* browserParent = dom::BrowserParent::GetFrom(content)) { |
| 1772 | browserParent->NotifyPositionUpdatedForContentsInPopup(); |
| 1773 | } |
| 1774 | } |
| 1775 | } |
| 1776 | } |
| 1777 | |
| 1778 | Maybe<nsRect> nsMenuPopupFrame::GetConstraintRect( |
| 1779 | const nsRect& aAnchorRect, const nsRect& aRootScreenRect, |
| 1780 | PopupLevel aPopupLevel) const { |
| 1781 | const nsPresContext* pc = PresContext(); |
| 1782 | const int32_t a2d = PresContext()->AppUnitsPerDevPixel(); |
| 1783 | Maybe<nsRect> result; |
| 1784 | |
| 1785 | auto AddConstraint = [&result](const nsRect& aConstraint) { |
| 1786 | if (result) { |
| 1787 | *result = result->Intersect(aConstraint); |
| 1788 | } else { |
| 1789 | result.emplace(aConstraint); |
| 1790 | } |
| 1791 | }; |
| 1792 | |
| 1793 | // Determine the available screen space. It will be reduced by the OS chrome |
| 1794 | // such as menubars. It addition, for content shells, it will be the area of |
| 1795 | // the content rather than the screen. |
| 1796 | // In Wayland we can't use the screen rect because we can't know absolute |
| 1797 | // window position. |
| 1798 | if (!IS_WAYLAND_DISPLAY()mozilla::widget::GdkIsWaylandDisplay()) { |
| 1799 | const DesktopToLayoutDeviceScale scale = |
| 1800 | pc->DeviceContext()->GetDesktopToDeviceScale(); |
| 1801 | // For content shells, get the screen where the root frame is located. This |
| 1802 | // is because we need to constrain the content to this content area, so we |
| 1803 | // should use the same screen. Otherwise, use the screen where the anchor is |
| 1804 | // located. |
| 1805 | const nsRect& rect = mInContentShell ? aRootScreenRect : aAnchorRect; |
| 1806 | auto desktopRect = DesktopIntRect::RoundOut( |
| 1807 | LayoutDeviceRect::FromAppUnits(rect, a2d) / scale); |
| 1808 | desktopRect.width = std::max(1, desktopRect.width); |
| 1809 | desktopRect.height = std::max(1, desktopRect.height); |
| 1810 | |
| 1811 | RefPtr<nsIScreen> screen = |
| 1812 | widget::ScreenManager::GetSingleton().ScreenForRect(desktopRect); |
| 1813 | MOZ_ASSERT(screen, "We always fall back to the primary screen")do { static_assert( mozilla::detail::AssertionConditionType< decltype(screen)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(screen))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("screen" " (" "We always fall back to the primary screen" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/xul/nsMenuPopupFrame.cpp" , 1813); AnnotateMozCrashReason("MOZ_ASSERT" "(" "screen" ") (" "We always fall back to the primary screen" ")"); do { *((volatile int*)__null) = 1813; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 1814 | // Non-top-level popups (which will always be panels) should never overlap |
| 1815 | // the OS bar. |
| 1816 | const bool canOverlapOSBar = |
| 1817 | aPopupLevel == PopupLevel::Top && |
| 1818 | LookAndFeel::GetInt(LookAndFeel::IntID::MenusCanOverlapOSBar) && |
| 1819 | !mInContentShell; |
| 1820 | // Get the total screen area if the popup is allowed to overlap it. |
| 1821 | const auto screenRect = |
| 1822 | canOverlapOSBar ? screen->GetRect() : screen->GetAvailRect(); |
| 1823 | AddConstraint(LayoutDeviceRect::ToAppUnits(screenRect, a2d)); |
| 1824 | } |
| 1825 | |
| 1826 | if (mInContentShell) { |
| 1827 | // For content shells, clip to the client area rather than the screen area |
| 1828 | AddConstraint(aRootScreenRect); |
| 1829 | } else if (!mOverrideConstraintRect.IsEmpty()) { |
| 1830 | AddConstraint(mOverrideConstraintRect); |
| 1831 | // This is currently only used for <select> elements where we want to |
| 1832 | // constrain vertically to the screen but not horizontally, so do the |
| 1833 | // intersection and then reset the horizontal values. |
| 1834 | // |
| 1835 | // FIXME(emilio): This doesn't make any sense to me... |
| 1836 | result->x = mOverrideConstraintRect.x; |
| 1837 | result->width = mOverrideConstraintRect.width; |
| 1838 | } |
| 1839 | |
| 1840 | // Expand the allowable screen rect by the input margin (which can't be |
| 1841 | // interacted with). |
| 1842 | if (result) { |
| 1843 | const nscoord inputMargin = |
| 1844 | StyleUIReset()->mMozWindowInputRegionMargin.ToAppUnits(); |
| 1845 | result->Inflate(inputMargin); |
| 1846 | } |
| 1847 | return result; |
| 1848 | } |
| 1849 | |
| 1850 | ConsumeOutsideClicksResult nsMenuPopupFrame::ConsumeOutsideClicks() { |
| 1851 | if (mContent->AsElement()->AttrValueIs(kNameSpaceID_None, |
| 1852 | nsGkAtoms::consumeoutsideclicks, |
| 1853 | nsGkAtoms::_true, eCaseMatters)) { |
| 1854 | return ConsumeOutsideClicks_True; |
| 1855 | } |
| 1856 | if (mContent->AsElement()->AttrValueIs(kNameSpaceID_None, |
| 1857 | nsGkAtoms::consumeoutsideclicks, |
| 1858 | nsGkAtoms::_false, eCaseMatters)) { |
| 1859 | return ConsumeOutsideClicks_ParentOnly; |
| 1860 | } |
| 1861 | if (mContent->AsElement()->AttrValueIs(kNameSpaceID_None, |
| 1862 | nsGkAtoms::consumeoutsideclicks, |
| 1863 | nsGkAtoms::never, eCaseMatters)) { |
| 1864 | return ConsumeOutsideClicks_Never; |
| 1865 | } |
| 1866 | |
| 1867 | nsCOMPtr<nsIContent> parentContent = mContent->GetParent(); |
| 1868 | if (parentContent) { |
| 1869 | dom::NodeInfo* ni = parentContent->NodeInfo(); |
| 1870 | if (ni->Equals(nsGkAtoms::menulist, kNameSpaceID_XUL8)) { |
| 1871 | return ConsumeOutsideClicks_True; // Consume outside clicks for combo |
| 1872 | // boxes on all platforms |
| 1873 | } |
| 1874 | #if defined(XP_WIN) |
| 1875 | // Don't consume outside clicks for menus in Windows |
| 1876 | if (ni->Equals(nsGkAtoms::menu, kNameSpaceID_XUL8) || |
| 1877 | ni->Equals(nsGkAtoms::popupset, kNameSpaceID_XUL8) || |
| 1878 | ((ni->Equals(nsGkAtoms::button, kNameSpaceID_XUL8) || |
| 1879 | ni->Equals(nsGkAtoms::toolbarbutton, kNameSpaceID_XUL8)) && |
| 1880 | parentContent->AsElement()->AttrValueIs( |
| 1881 | kNameSpaceID_None, nsGkAtoms::type, nsGkAtoms::menu, |
| 1882 | eCaseMatters))) { |
| 1883 | return ConsumeOutsideClicks_Never; |
| 1884 | } |
| 1885 | #endif |
| 1886 | } |
| 1887 | |
| 1888 | return ConsumeOutsideClicks_True; |
| 1889 | } |
| 1890 | |
| 1891 | static ScrollContainerFrame* DoGetScrollContainerFrame(const nsIFrame* aFrame) { |
| 1892 | if (const ScrollContainerFrame* sf = do_QueryFrame(aFrame)) { |
| 1893 | return const_cast<ScrollContainerFrame*>(sf); |
| 1894 | } |
| 1895 | for (nsIFrame* childFrame : aFrame->PrincipalChildList()) { |
| 1896 | if (auto* sf = DoGetScrollContainerFrame(childFrame)) { |
| 1897 | return sf; |
| 1898 | } |
| 1899 | } |
| 1900 | return nullptr; |
| 1901 | } |
| 1902 | |
| 1903 | // XXXroc this is megalame. Fossicking around for a frame of the right |
| 1904 | // type is a recipe for disaster in the long term. |
| 1905 | ScrollContainerFrame* nsMenuPopupFrame::GetScrollContainerFrame() const { |
| 1906 | return DoGetScrollContainerFrame(this); |
| 1907 | } |
| 1908 | |
| 1909 | void nsMenuPopupFrame::ChangeByPage(bool aIsUp) { |
| 1910 | // Only scroll by page within menulists. |
| 1911 | if (!IsMenuList()) { |
| 1912 | return; |
| 1913 | } |
| 1914 | |
| 1915 | ScrollContainerFrame* scrollContainerFrame = GetScrollContainerFrame(); |
| 1916 | |
| 1917 | RefPtr popup = &PopupElement(); |
| 1918 | XULButtonElement* currentMenu = popup->GetActiveMenuChild(); |
| 1919 | XULButtonElement* newMenu = nullptr; |
| 1920 | if (!currentMenu) { |
| 1921 | // If there is no current menu item, get the first item. When moving up, |
| 1922 | // just use this as the newMenu and leave currentMenu null so that no check |
| 1923 | // for a later element is performed. When moving down, set currentMenu so |
| 1924 | // that we look for one page down from the first item. |
| 1925 | newMenu = popup->GetFirstMenuItem(); |
| 1926 | if (!aIsUp) { |
| 1927 | currentMenu = newMenu; |
| 1928 | } |
| 1929 | } |
| 1930 | |
| 1931 | if (currentMenu && currentMenu->GetPrimaryFrame()) { |
| 1932 | const nscoord scrollHeight = |
| 1933 | scrollContainerFrame ? scrollContainerFrame->GetScrollPortRect().height |
| 1934 | : mRect.height; |
| 1935 | const nsRect currentRect = currentMenu->GetPrimaryFrame()->GetRect(); |
| 1936 | const XULButtonElement* startMenu = currentMenu; |
| 1937 | |
| 1938 | // Get the position of the current item and add or subtract one popup's |
| 1939 | // height to or from it. |
| 1940 | const nscoord targetPos = aIsUp ? currentRect.YMost() - scrollHeight |
| 1941 | : currentRect.y + scrollHeight; |
| 1942 | // Look for the next child which is just past the target position. This |
| 1943 | // child will need to be selected. |
| 1944 | for (; currentMenu; |
| 1945 | currentMenu = aIsUp ? popup->GetPrevMenuItemFrom(*currentMenu) |
| 1946 | : popup->GetNextMenuItemFrom(*currentMenu)) { |
| 1947 | if (!currentMenu->GetPrimaryFrame()) { |
| 1948 | continue; |
| 1949 | } |
| 1950 | const nsRect curRect = currentMenu->GetPrimaryFrame()->GetRect(); |
| 1951 | const nscoord curPos = aIsUp ? curRect.y : curRect.YMost(); |
| 1952 | // If the right position was found, break out. Otherwise, look for another |
| 1953 | // item. |
| 1954 | if (aIsUp ? (curPos < targetPos) : (curPos > targetPos)) { |
| 1955 | if (!newMenu || newMenu == startMenu) { |
| 1956 | newMenu = currentMenu; |
| 1957 | } |
| 1958 | break; |
| 1959 | } |
| 1960 | |
| 1961 | // Assign this item to newMenu. This item will be selected in case we |
| 1962 | // don't find any more. |
| 1963 | newMenu = currentMenu; |
| 1964 | } |
| 1965 | } |
| 1966 | |
| 1967 | // Select the new menuitem. |
| 1968 | if (RefPtr newMenuRef = newMenu) { |
| 1969 | popup->SetActiveMenuChild(newMenuRef); |
| 1970 | } |
| 1971 | } |
| 1972 | |
| 1973 | dom::XULPopupElement& nsMenuPopupFrame::PopupElement() const { |
| 1974 | auto* popup = dom::XULPopupElement::FromNode(GetContent()); |
| 1975 | MOZ_DIAGNOSTIC_ASSERT(popup)do { static_assert( mozilla::detail::AssertionConditionType< decltype(popup)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(popup))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("popup", "/var/lib/jenkins/workspace/firefox-scan-build/layout/xul/nsMenuPopupFrame.cpp" , 1975); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "popup" ")"); do { *((volatile int*)__null) = 1975; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1976 | return *popup; |
| 1977 | } |
| 1978 | |
| 1979 | XULButtonElement* nsMenuPopupFrame::GetCurrentMenuItem() const { |
| 1980 | return PopupElement().GetActiveMenuChild(); |
| 1981 | } |
| 1982 | |
| 1983 | nsIFrame* nsMenuPopupFrame::GetCurrentMenuItemFrame() const { |
| 1984 | auto* child = GetCurrentMenuItem(); |
| 1985 | return child ? child->GetPrimaryFrame() : nullptr; |
| 1986 | } |
| 1987 | |
| 1988 | void nsMenuPopupFrame::HandleEnterKeyPress(WidgetEvent& aEvent) { |
| 1989 | mIncrementalString.Truncate(); |
| 1990 | RefPtr popup = &PopupElement(); |
| 1991 | popup->HandleEnterKeyPress(aEvent); |
| 1992 | } |
| 1993 | |
| 1994 | XULButtonElement* nsMenuPopupFrame::FindMenuWithShortcut( |
| 1995 | mozilla::dom::KeyboardEvent& aKeyEvent, bool& aDoAction) { |
| 1996 | uint32_t charCode = aKeyEvent.CharCode(); |
| 1997 | uint32_t keyCode = aKeyEvent.KeyCode(); |
| 1998 | |
| 1999 | aDoAction = false; |
| 2000 | |
| 2001 | // Enumerate over our list of frames. |
| 2002 | const bool isMenu = !IsMenuList(); |
| 2003 | TimeStamp keyTime = aKeyEvent.WidgetEventPtr()->mTimeStamp; |
| 2004 | if (charCode == 0) { |
| 2005 | if (keyCode == dom::KeyboardEvent_Binding::DOM_VK_BACK_SPACE) { |
| 2006 | if (!isMenu && !mIncrementalString.IsEmpty()) { |
| 2007 | mIncrementalString.SetLength(mIncrementalString.Length() - 1); |
| 2008 | return nullptr; |
| 2009 | } |
| 2010 | #ifdef XP_WIN |
| 2011 | if (nsCOMPtr<nsISound> sound = do_GetService("@mozilla.org/sound;1")) { |
| 2012 | sound->Beep(); |
| 2013 | } |
| 2014 | #endif // #ifdef XP_WIN |
| 2015 | } |
| 2016 | return nullptr; |
| 2017 | } |
| 2018 | char16_t uniChar = ToLowerCase(static_cast<char16_t>(charCode)); |
| 2019 | if (isMenu) { |
| 2020 | // Menu supports only first-letter navigation |
| 2021 | mIncrementalString = uniChar; |
| 2022 | } else if (IsWithinIncrementalTime(keyTime)) { |
| 2023 | mIncrementalString.Append(uniChar); |
| 2024 | } else { |
| 2025 | // Interval too long, treat as new typing |
| 2026 | mIncrementalString = uniChar; |
| 2027 | } |
| 2028 | |
| 2029 | // See bug 188199 & 192346, if all letters in incremental string are same, |
| 2030 | // just try to match the first one |
| 2031 | nsAutoString incrementalString(mIncrementalString); |
| 2032 | uint32_t charIndex = 1, stringLength = incrementalString.Length(); |
| 2033 | while (charIndex < stringLength && |
| 2034 | incrementalString[charIndex] == incrementalString[charIndex - 1]) { |
| 2035 | charIndex++; |
| 2036 | } |
| 2037 | if (charIndex == stringLength) { |
| 2038 | incrementalString.Truncate(1); |
| 2039 | stringLength = 1; |
Value stored to 'stringLength' is never read | |
| 2040 | } |
| 2041 | |
| 2042 | sLastKeyTime = keyTime; |
| 2043 | |
| 2044 | auto* item = |
| 2045 | PopupElement().FindMenuWithShortcut(incrementalString, aDoAction); |
| 2046 | if (item) { |
| 2047 | return item; |
| 2048 | } |
| 2049 | |
| 2050 | // If we don't match anything, rollback the last typing |
| 2051 | mIncrementalString.SetLength(mIncrementalString.Length() - 1); |
| 2052 | |
| 2053 | // didn't find a matching menu item |
| 2054 | #ifdef XP_WIN |
| 2055 | // behavior on Windows - this item is in a menu popup off of the |
| 2056 | // menu bar, so beep and do nothing else |
| 2057 | if (isMenu) { |
| 2058 | if (nsCOMPtr<nsISound> sound = do_GetService("@mozilla.org/sound;1")) { |
| 2059 | sound->Beep(); |
| 2060 | } |
| 2061 | } |
| 2062 | #endif // #ifdef XP_WIN |
| 2063 | |
| 2064 | return nullptr; |
| 2065 | } |
| 2066 | |
| 2067 | nsIWidget* nsMenuPopupFrame::GetWidget() const { |
| 2068 | return mView ? mView->GetWidget() : nullptr; |
| 2069 | } |
| 2070 | |
| 2071 | // helpers ///////////////////////////////////////////////////////////// |
| 2072 | |
| 2073 | nsresult nsMenuPopupFrame::AttributeChanged(int32_t aNameSpaceID, |
| 2074 | nsAtom* aAttribute, |
| 2075 | int32_t aModType) |
| 2076 | |
| 2077 | { |
| 2078 | nsresult rv = |
| 2079 | nsBlockFrame::AttributeChanged(aNameSpaceID, aAttribute, aModType); |
| 2080 | |
| 2081 | if (aAttribute == nsGkAtoms::left || aAttribute == nsGkAtoms::top) { |
| 2082 | MoveToAttributePosition(); |
| 2083 | } |
| 2084 | |
| 2085 | if (aAttribute == nsGkAtoms::remote) { |
| 2086 | // When the remote attribute changes, we need to create a new widget to |
| 2087 | // ensure that it has the correct compositor and transparency settings to |
| 2088 | // match the new value. |
| 2089 | PrepareWidget(true); |
| 2090 | } |
| 2091 | |
| 2092 | if (aAttribute == nsGkAtoms::followanchor) { |
| 2093 | if (nsXULPopupManager* pm = nsXULPopupManager::GetInstance()) { |
| 2094 | pm->UpdateFollowAnchor(this); |
| 2095 | } |
| 2096 | } |
| 2097 | |
| 2098 | if (aAttribute == nsGkAtoms::label) { |
| 2099 | // set the label for the titlebar |
| 2100 | nsView* view = GetView(); |
| 2101 | if (view) { |
| 2102 | nsIWidget* widget = view->GetWidget(); |
| 2103 | if (widget) { |
| 2104 | nsAutoString title; |
| 2105 | mContent->AsElement()->GetAttr(nsGkAtoms::label, title); |
| 2106 | if (!title.IsEmpty()) { |
| 2107 | widget->SetTitle(title); |
| 2108 | } |
| 2109 | } |
| 2110 | } |
| 2111 | } else if (aAttribute == nsGkAtoms::ignorekeys) { |
| 2112 | nsXULPopupManager* pm = nsXULPopupManager::GetInstance(); |
| 2113 | if (pm) { |
| 2114 | nsAutoString ignorekeys; |
| 2115 | mContent->AsElement()->GetAttr(nsGkAtoms::ignorekeys, ignorekeys); |
| 2116 | pm->UpdateIgnoreKeys(ignorekeys.EqualsLiteral("true")); |
| 2117 | } |
| 2118 | } |
| 2119 | |
| 2120 | return rv; |
| 2121 | } |
| 2122 | |
| 2123 | void nsMenuPopupFrame::MoveToAttributePosition() { |
| 2124 | // Move the widget around when the user sets the |left| and |top| attributes. |
| 2125 | // Note that this is not the best way to move the widget, as it results in |
| 2126 | // lots of FE notifications and is likely to be slow as molasses. Use |moveTo| |
| 2127 | // on the element if possible. |
| 2128 | nsAutoString left, top; |
| 2129 | mContent->AsElement()->GetAttr(nsGkAtoms::left, left); |
| 2130 | mContent->AsElement()->GetAttr(nsGkAtoms::top, top); |
| 2131 | nsresult err1, err2; |
| 2132 | const CSSIntPoint pos(left.ToInteger(&err1), top.ToInteger(&err2)); |
| 2133 | if (NS_SUCCEEDED(err1)((bool)(__builtin_expect(!!(!NS_FAILED_impl(err1)), 1))) && NS_SUCCEEDED(err2)((bool)(__builtin_expect(!!(!NS_FAILED_impl(err2)), 1)))) { |
| 2134 | MoveTo(pos, false); |
| 2135 | } |
| 2136 | |
| 2137 | PresShell()->FrameNeedsReflow( |
| 2138 | this, IntrinsicDirty::FrameAncestorsAndDescendants, NS_FRAME_IS_DIRTY); |
| 2139 | } |
| 2140 | |
| 2141 | void nsMenuPopupFrame::Destroy(DestroyContext& aContext) { |
| 2142 | // XXX: Currently we don't fire popuphidden for these popups, that seems wrong |
| 2143 | // but alas, also pre-existing. |
| 2144 | HidePopup(/* aDeselectMenu = */ false, ePopupClosed, |
| 2145 | /* aFromFrameDestruction = */ true); |
| 2146 | |
| 2147 | if (RefPtr<nsXULPopupManager> pm = nsXULPopupManager::GetInstance()) { |
| 2148 | pm->PopupDestroyed(this); |
| 2149 | } |
| 2150 | |
| 2151 | nsBlockFrame::Destroy(aContext); |
| 2152 | } |
| 2153 | |
| 2154 | nsMargin nsMenuPopupFrame::GetMargin() const { |
| 2155 | nsMargin margin; |
| 2156 | StyleMargin()->GetMargin(margin); |
| 2157 | if (mIsTopLevelContextMenu) { |
| 2158 | const CSSIntPoint offset( |
| 2159 | LookAndFeel::GetInt(LookAndFeel::IntID::ContextMenuOffsetHorizontal), |
| 2160 | LookAndFeel::GetInt(LookAndFeel::IntID::ContextMenuOffsetVertical)); |
| 2161 | auto auOffset = CSSIntPoint::ToAppUnits(offset); |
| 2162 | margin.top += auOffset.y; |
| 2163 | margin.bottom += auOffset.y; |
| 2164 | margin.left += auOffset.x; |
| 2165 | margin.right += auOffset.x; |
| 2166 | } |
| 2167 | if (mPopupType == PopupType::Tooltip && !IsAnchored()) { |
| 2168 | const auto auOffset = |
| 2169 | CSSPixel::ToAppUnits(LookAndFeel::TooltipOffsetVertical()); |
| 2170 | margin.top += auOffset; |
| 2171 | margin.bottom += auOffset; |
| 2172 | } |
| 2173 | return margin; |
| 2174 | } |
| 2175 | |
| 2176 | void nsMenuPopupFrame::MoveTo(const CSSPoint& aPos, bool aUpdateAttrs, |
| 2177 | bool aByMoveToRect) { |
| 2178 | nsIWidget* widget = GetWidget(); |
| 2179 | nsPoint appUnitsPos = CSSPixel::ToAppUnits(aPos); |
| 2180 | |
| 2181 | // reposition the popup at the specified coordinates. Don't clear the anchor |
| 2182 | // and position, because the popup can be reset to its anchor position by |
| 2183 | // using (-1, -1) as coordinates. |
| 2184 | // |
| 2185 | // Subtract off the margin as it will be added to the position when |
| 2186 | // SetPopupPosition is called. |
| 2187 | { |
| 2188 | nsMargin margin = GetMargin(); |
| 2189 | if (mIsContextMenu && IsDirectionRTL()) { |
| 2190 | appUnitsPos.x += margin.right + mRect.Width(); |
| 2191 | } else { |
| 2192 | appUnitsPos.x -= margin.left; |
| 2193 | } |
| 2194 | appUnitsPos.y -= margin.top; |
| 2195 | } |
| 2196 | |
| 2197 | if (mScreenRect.TopLeft() == appUnitsPos && |
| 2198 | (!widget || widget->GetClientOffset() == mLastClientOffset)) { |
| 2199 | return; |
| 2200 | } |
| 2201 | |
| 2202 | mPositionedByMoveToRect = aByMoveToRect; |
| 2203 | mScreenRect.MoveTo(appUnitsPos); |
| 2204 | if (mAnchorType == MenuPopupAnchorType::Rect) { |
| 2205 | // This ensures that the anchor width is still honored, to prevent it from |
| 2206 | // changing spuriously. |
| 2207 | mScreenRect.height = 0; |
| 2208 | // But we still need to make sure that our top left position ends up in |
| 2209 | // appUnitsPos. |
| 2210 | mPopupAlignment = POPUPALIGNMENT_TOPLEFT1; |
| 2211 | mPopupAnchor = POPUPALIGNMENT_BOTTOMLEFT2; |
| 2212 | mXPos = mYPos = 0; |
| 2213 | } else { |
| 2214 | mAnchorType = MenuPopupAnchorType::Point; |
| 2215 | } |
| 2216 | |
| 2217 | SetPopupPosition(true); |
| 2218 | |
| 2219 | RefPtr<Element> popup = mContent->AsElement(); |
| 2220 | if (aUpdateAttrs && |
| 2221 | (popup->HasAttr(nsGkAtoms::left) || popup->HasAttr(nsGkAtoms::top))) { |
| 2222 | nsAutoString left, top; |
| 2223 | left.AppendInt(RoundedToInt(aPos).x); |
| 2224 | top.AppendInt(RoundedToInt(aPos).y); |
| 2225 | popup->SetAttr(kNameSpaceID_None, nsGkAtoms::left, left, false); |
| 2226 | popup->SetAttr(kNameSpaceID_None, nsGkAtoms::top, top, false); |
| 2227 | } |
| 2228 | } |
| 2229 | |
| 2230 | void nsMenuPopupFrame::MoveToAnchor(nsIContent* aAnchorContent, |
| 2231 | const nsAString& aPosition, int32_t aXPos, |
| 2232 | int32_t aYPos, bool aAttributesOverride) { |
| 2233 | NS_ASSERTION(IsVisibleOrShowing(),do { if (!(IsVisibleOrShowing())) { NS_DebugBreak(NS_DEBUG_ASSERTION , "popup must be visible or showing to move it", "IsVisibleOrShowing()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/xul/nsMenuPopupFrame.cpp" , 2234); MOZ_PretendNoReturn(); } } while (0) |
| 2234 | "popup must be visible or showing to move it")do { if (!(IsVisibleOrShowing())) { NS_DebugBreak(NS_DEBUG_ASSERTION , "popup must be visible or showing to move it", "IsVisibleOrShowing()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/xul/nsMenuPopupFrame.cpp" , 2234); MOZ_PretendNoReturn(); } } while (0); |
| 2235 | |
| 2236 | nsPopupState oldstate = mPopupState; |
| 2237 | InitializePopup(aAnchorContent, mTriggerContent, aPosition, aXPos, aYPos, |
| 2238 | MenuPopupAnchorType::Node, aAttributesOverride); |
| 2239 | // InitializePopup changed the state so reset it. |
| 2240 | mPopupState = oldstate; |
| 2241 | |
| 2242 | // Pass false here so that flipping and adjusting to fit on the screen happen. |
| 2243 | SetPopupPosition(false); |
| 2244 | } |
| 2245 | |
| 2246 | int8_t nsMenuPopupFrame::GetAlignmentPosition() const { |
| 2247 | // The code below handles most cases of alignment, anchor and position values. |
| 2248 | // Those that are not handled just return POPUPPOSITION_UNKNOWN. |
| 2249 | |
| 2250 | if (mPosition == POPUPPOSITION_OVERLAP8 || |
| 2251 | mPosition == POPUPPOSITION_AFTERPOINTER9 || |
| 2252 | mPosition == POPUPPOSITION_SELECTION10) { |
| 2253 | return mPosition; |
| 2254 | } |
| 2255 | |
| 2256 | int8_t position = mPosition; |
| 2257 | |
| 2258 | if (position == POPUPPOSITION_UNKNOWN-1) { |
| 2259 | switch (mPopupAnchor) { |
| 2260 | case POPUPALIGNMENT_BOTTOMRIGHT-2: |
| 2261 | case POPUPALIGNMENT_BOTTOMLEFT2: |
| 2262 | case POPUPALIGNMENT_BOTTOMCENTER18: |
| 2263 | position = mPopupAlignment == POPUPALIGNMENT_TOPRIGHT-1 |
| 2264 | ? POPUPPOSITION_AFTEREND3 |
| 2265 | : POPUPPOSITION_AFTERSTART2; |
| 2266 | break; |
| 2267 | case POPUPALIGNMENT_TOPRIGHT-1: |
| 2268 | case POPUPALIGNMENT_TOPLEFT1: |
| 2269 | case POPUPALIGNMENT_TOPCENTER17: |
| 2270 | position = mPopupAlignment == POPUPALIGNMENT_BOTTOMRIGHT-2 |
| 2271 | ? POPUPPOSITION_BEFOREEND1 |
| 2272 | : POPUPPOSITION_BEFORESTART0; |
| 2273 | break; |
| 2274 | case POPUPALIGNMENT_LEFTCENTER16: |
| 2275 | position = mPopupAlignment == POPUPALIGNMENT_BOTTOMRIGHT-2 |
| 2276 | ? POPUPPOSITION_STARTAFTER6 |
| 2277 | : POPUPPOSITION_STARTBEFORE4; |
| 2278 | break; |
| 2279 | case POPUPALIGNMENT_RIGHTCENTER-16: |
| 2280 | position = mPopupAlignment == POPUPALIGNMENT_BOTTOMLEFT2 |
| 2281 | ? POPUPPOSITION_ENDAFTER7 |
| 2282 | : POPUPPOSITION_ENDBEFORE5; |
| 2283 | break; |
| 2284 | default: |
| 2285 | break; |
| 2286 | } |
| 2287 | } |
| 2288 | |
| 2289 | if (mHFlip) { |
| 2290 | position = POPUPPOSITION_HFLIP(position)(position ^ 1); |
| 2291 | } |
| 2292 | |
| 2293 | if (mVFlip) { |
| 2294 | position = POPUPPOSITION_VFLIP(position)(position ^ 2); |
| 2295 | } |
| 2296 | |
| 2297 | return position; |
| 2298 | } |
| 2299 | |
| 2300 | /** |
| 2301 | * KEEP THIS IN SYNC WITH nsIFrame::CreateView |
| 2302 | * as much as possible. Until we get rid of views finally... |
| 2303 | */ |
| 2304 | void nsMenuPopupFrame::CreatePopupView() { |
| 2305 | if (HasView()) { |
| 2306 | return; |
| 2307 | } |
| 2308 | |
| 2309 | nsViewManager* viewManager = PresContext()->GetPresShell()->GetViewManager(); |
| 2310 | NS_ASSERTION(nullptr != viewManager, "null view manager")do { if (!(nullptr != viewManager)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "null view manager", "nullptr != viewManager", "/var/lib/jenkins/workspace/firefox-scan-build/layout/xul/nsMenuPopupFrame.cpp" , 2310); MOZ_PretendNoReturn(); } } while (0); |
| 2311 | |
| 2312 | // Create a view |
| 2313 | nsView* parentView = viewManager->GetRootView(); |
| 2314 | auto visibility = ViewVisibility::Hide; |
| 2315 | |
| 2316 | NS_ASSERTION(parentView, "no parent view")do { if (!(parentView)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "no parent view" , "parentView", "/var/lib/jenkins/workspace/firefox-scan-build/layout/xul/nsMenuPopupFrame.cpp" , 2316); MOZ_PretendNoReturn(); } } while (0); |
| 2317 | |
| 2318 | // Create a view |
| 2319 | nsView* view = viewManager->CreateView(GetRect(), parentView, visibility); |
| 2320 | // XXX put view last in document order until we can do better |
| 2321 | viewManager->InsertChild(parentView, view, nullptr, true); |
| 2322 | |
| 2323 | // Remember our view |
| 2324 | SetView(view); |
| 2325 | |
| 2326 | NS_FRAME_LOG(do { if ((int(((mozilla::LogModule*)(nsIFrame::sFrameLogModule ))->Level()) & (0x1))) { printf_stderr ("nsMenuPopupFrame::CreatePopupView: frame=%p view=%p" , this, view); } } while (0) |
| 2327 | NS_FRAME_TRACE_CALLS,do { if ((int(((mozilla::LogModule*)(nsIFrame::sFrameLogModule ))->Level()) & (0x1))) { printf_stderr ("nsMenuPopupFrame::CreatePopupView: frame=%p view=%p" , this, view); } } while (0) |
| 2328 | ("nsMenuPopupFrame::CreatePopupView: frame=%p view=%p", this, view))do { if ((int(((mozilla::LogModule*)(nsIFrame::sFrameLogModule ))->Level()) & (0x1))) { printf_stderr ("nsMenuPopupFrame::CreatePopupView: frame=%p view=%p" , this, view); } } while (0); |
| 2329 | } |
| 2330 | |
| 2331 | bool nsMenuPopupFrame::ShouldFollowAnchor() const { |
| 2332 | if (mAnchorType != MenuPopupAnchorType::Node || !mAnchorContent) { |
| 2333 | return false; |
| 2334 | } |
| 2335 | |
| 2336 | // Follow anchor mode is used when followanchor="true" is set or for arrow |
| 2337 | // panels. |
| 2338 | if (mContent->AsElement()->AttrValueIs(kNameSpaceID_None, |
| 2339 | nsGkAtoms::followanchor, |
| 2340 | nsGkAtoms::_true, eCaseMatters)) { |
| 2341 | return true; |
| 2342 | } |
| 2343 | |
| 2344 | if (mContent->AsElement()->AttrValueIs(kNameSpaceID_None, |
| 2345 | nsGkAtoms::followanchor, |
| 2346 | nsGkAtoms::_false, eCaseMatters)) { |
| 2347 | return false; |
| 2348 | } |
| 2349 | |
| 2350 | return mPopupType == PopupType::Panel && |
| 2351 | mContent->AsElement()->AttrValueIs(kNameSpaceID_None, nsGkAtoms::type, |
| 2352 | nsGkAtoms::arrow, eCaseMatters); |
| 2353 | } |
| 2354 | |
| 2355 | bool nsMenuPopupFrame::ShouldFollowAnchor(nsRect& aRect) { |
| 2356 | if (!ShouldFollowAnchor()) { |
| 2357 | return false; |
| 2358 | } |
| 2359 | |
| 2360 | if (nsIFrame* anchorFrame = GetAnchorFrame()) { |
| 2361 | if (nsPresContext* rootPresContext = PresContext()->GetRootPresContext()) { |
| 2362 | aRect = ComputeAnchorRect(rootPresContext, anchorFrame); |
| 2363 | } |
| 2364 | } |
| 2365 | |
| 2366 | return true; |
| 2367 | } |
| 2368 | |
| 2369 | bool nsMenuPopupFrame::IsDirectionRTL() const { |
| 2370 | const nsIFrame* anchor = GetAnchorFrame(); |
| 2371 | const nsIFrame* f = anchor ? anchor : this; |
| 2372 | return f->StyleVisibility()->mDirection == StyleDirection::Rtl; |
| 2373 | } |
| 2374 | |
| 2375 | nsIFrame* nsMenuPopupFrame::GetAnchorFrame() const { |
| 2376 | nsIContent* anchor = mAnchorContent; |
| 2377 | if (!anchor) { |
| 2378 | return nullptr; |
| 2379 | } |
| 2380 | return MaybeDelegatedAnchorFrame(anchor->GetPrimaryFrame()); |
| 2381 | } |
| 2382 | |
| 2383 | void nsMenuPopupFrame::CheckForAnchorChange(nsRect& aRect) { |
| 2384 | // Don't update if the popup isn't visible or we shouldn't be following the |
| 2385 | // anchor. |
| 2386 | if (!IsVisible() || !ShouldFollowAnchor()) { |
| 2387 | return; |
| 2388 | } |
| 2389 | |
| 2390 | bool shouldHide = false; |
| 2391 | |
| 2392 | nsPresContext* rootPresContext = PresContext()->GetRootPresContext(); |
| 2393 | |
| 2394 | // If the frame for the anchor has gone away, hide the popup. |
| 2395 | nsIFrame* anchor = GetAnchorFrame(); |
| 2396 | if (!anchor || !rootPresContext) { |
| 2397 | shouldHide = true; |
| 2398 | } else if (!anchor->IsVisibleConsideringAncestors( |
| 2399 | VISIBILITY_CROSS_CHROME_CONTENT_BOUNDARY)) { |
| 2400 | // If the anchor is now inside something that is invisible, hide the popup. |
| 2401 | shouldHide = true; |
| 2402 | } else { |
| 2403 | // If the anchor is now inside a hidden parent popup, hide the popup. |
| 2404 | nsIFrame* frame = anchor; |
| 2405 | while (frame) { |
| 2406 | nsMenuPopupFrame* popup = do_QueryFrame(frame); |
| 2407 | if (popup && popup->PopupState() != ePopupShown) { |
| 2408 | shouldHide = true; |
| 2409 | break; |
| 2410 | } |
| 2411 | |
| 2412 | frame = frame->GetParent(); |
| 2413 | } |
| 2414 | } |
| 2415 | |
| 2416 | if (shouldHide) { |
| 2417 | nsXULPopupManager* pm = nsXULPopupManager::GetInstance(); |
| 2418 | if (pm) { |
| 2419 | // As the caller will be iterating over the open popups, hide |
| 2420 | // asyncronously. |
| 2421 | pm->HidePopup(mContent->AsElement(), |
| 2422 | {HidePopupOption::DeselectMenu, HidePopupOption::Async}); |
| 2423 | } |
| 2424 | |
| 2425 | return; |
| 2426 | } |
| 2427 | |
| 2428 | nsRect anchorRect = ComputeAnchorRect(rootPresContext, anchor); |
| 2429 | |
| 2430 | // If the rectangles are different, move the popup. |
| 2431 | if (!anchorRect.IsEqualEdges(aRect)) { |
| 2432 | aRect = anchorRect; |
| 2433 | SetPopupPosition(true); |
| 2434 | } |
| 2435 | } |