| File: | var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp |
| Warning: | line 170, column 5 Value stored to 'result' 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 | /* rendering object for replaced elements with image data */ |
| 8 | |
| 9 | #include "nsImageFrame.h" |
| 10 | |
| 11 | #include "TextDrawTarget.h" |
| 12 | #include "gfx2DGlue.h" |
| 13 | #include "gfxContext.h" |
| 14 | #include "gfxUtils.h" |
| 15 | #include "mozilla/dom/NameSpaceConstants.h" |
| 16 | #include "mozilla/intl/BidiEmbeddingLevel.h" |
| 17 | #include "mozilla/ComputedStyle.h" |
| 18 | #include "mozilla/DebugOnly.h" |
| 19 | #include "mozilla/Encoding.h" |
| 20 | #include "mozilla/HTMLEditor.h" |
| 21 | #include "mozilla/dom/FetchPriority.h" |
| 22 | #include "mozilla/dom/ImageTracker.h" |
| 23 | #include "mozilla/gfx/2D.h" |
| 24 | #include "mozilla/gfx/Helpers.h" |
| 25 | #include "mozilla/gfx/PathHelpers.h" |
| 26 | #include "mozilla/dom/GeneratedImageContent.h" |
| 27 | #include "mozilla/dom/HTMLAreaElement.h" |
| 28 | #include "mozilla/dom/HTMLImageElement.h" |
| 29 | #include "mozilla/dom/ReferrerInfo.h" |
| 30 | #include "mozilla/dom/ResponsiveImageSelector.h" |
| 31 | #include "mozilla/dom/LargestContentfulPaint.h" |
| 32 | #include "mozilla/image/WebRenderImageProvider.h" |
| 33 | #include "mozilla/layers/RenderRootStateManager.h" |
| 34 | #include "mozilla/layers/WebRenderLayerManager.h" |
| 35 | #include "mozilla/MouseEvents.h" |
| 36 | #include "mozilla/PresShell.h" |
| 37 | #include "mozilla/PresShellInlines.h" |
| 38 | #include "mozilla/StaticPrefs_browser.h" |
| 39 | #include "mozilla/StaticPrefs_image.h" |
| 40 | #include "mozilla/StaticPrefs_layout.h" |
| 41 | #include "mozilla/SVGImageContext.h" |
| 42 | #include "mozilla/Unused.h" |
| 43 | |
| 44 | #include "nsCOMPtr.h" |
| 45 | #include "nsFontMetrics.h" |
| 46 | #include "nsIFrameInlines.h" |
| 47 | #include "nsIImageLoadingContent.h" |
| 48 | #include "nsImageLoadingContent.h" |
| 49 | #include "nsImageRenderer.h" |
| 50 | #include "nsObjectLoadingContent.h" |
| 51 | #include "nsString.h" |
| 52 | #include "nsPrintfCString.h" |
| 53 | #include "nsPresContext.h" |
| 54 | #include "nsGkAtoms.h" |
| 55 | #include "mozilla/dom/Document.h" |
| 56 | #include "nsContentUtils.h" |
| 57 | #include "nsCSSAnonBoxes.h" |
| 58 | #include "nsStyleConsts.h" |
| 59 | #include "nsStyleUtil.h" |
| 60 | #include "nsTransform2D.h" |
| 61 | #include "nsImageMap.h" |
| 62 | #include "nsILoadGroup.h" |
| 63 | #include "nsNetUtil.h" |
| 64 | #include "nsNetCID.h" |
| 65 | #include "nsCSSRendering.h" |
| 66 | #include "nsNameSpaceManager.h" |
| 67 | #include <algorithm> |
| 68 | #ifdef ACCESSIBILITY1 |
| 69 | # include "nsAccessibilityService.h" |
| 70 | #endif |
| 71 | #include "nsLayoutUtils.h" |
| 72 | #include "nsDisplayList.h" |
| 73 | #include "nsIContent.h" |
| 74 | #include "mozilla/dom/Selection.h" |
| 75 | #include "nsIURIMutator.h" |
| 76 | |
| 77 | #include "imgIContainer.h" |
| 78 | #include "imgLoader.h" |
| 79 | #include "imgRequestProxy.h" |
| 80 | |
| 81 | #include "nsCSSFrameConstructor.h" |
| 82 | #include "nsRange.h" |
| 83 | |
| 84 | #include "nsError.h" |
| 85 | #include "nsBidiUtils.h" |
| 86 | #include "nsBidiPresUtils.h" |
| 87 | |
| 88 | #include "gfxRect.h" |
| 89 | #include "ImageRegion.h" |
| 90 | #include "ImageContainer.h" |
| 91 | #include "mozilla/ServoStyleSet.h" |
| 92 | #include "nsBlockFrame.h" |
| 93 | #include "nsStyleStructInlines.h" |
| 94 | |
| 95 | #include "mozilla/Preferences.h" |
| 96 | |
| 97 | #include "mozilla/dom/Link.h" |
| 98 | #include "mozilla/dom/HTMLAnchorElement.h" |
| 99 | #include "mozilla/dom/BrowserChild.h" |
| 100 | |
| 101 | using namespace mozilla; |
| 102 | using namespace mozilla::dom; |
| 103 | using namespace mozilla::gfx; |
| 104 | using namespace mozilla::image; |
| 105 | using namespace mozilla::layers; |
| 106 | |
| 107 | using mozilla::layout::TextDrawTarget; |
| 108 | |
| 109 | class nsDisplayGradient final : public nsPaintedDisplayItem { |
| 110 | public: |
| 111 | nsDisplayGradient(nsDisplayListBuilder* aBuilder, nsImageFrame* aFrame) |
| 112 | : nsPaintedDisplayItem(aBuilder, aFrame) { |
| 113 | MOZ_COUNT_CTOR(nsDisplayGradient)do { static_assert(std::is_class_v<nsDisplayGradient>, "Token '" "nsDisplayGradient" "' is not a class type."); static_assert (!std::is_base_of<nsISupports, nsDisplayGradient>::value , "nsISupports classes don't need to call MOZ_COUNT_CTOR or " "MOZ_COUNT_DTOR");; NS_LogCtor((void*)this, "nsDisplayGradient" , sizeof(*this)); } while (0); |
| 114 | } |
| 115 | ~nsDisplayGradient() final { MOZ_COUNT_DTOR(nsDisplayGradient)do { static_assert(std::is_class_v<nsDisplayGradient>, "Token '" "nsDisplayGradient" "' is not a class type."); static_assert (!std::is_base_of<nsISupports, nsDisplayGradient>::value , "nsISupports classes don't need to call MOZ_COUNT_CTOR or " "MOZ_COUNT_DTOR");; NS_LogDtor((void*)this, "nsDisplayGradient" , sizeof(*this)); } while (0); } |
| 116 | |
| 117 | nsRect GetBounds(bool* aSnap) const { |
| 118 | *aSnap = true; |
| 119 | return Frame()->GetContentRectRelativeToSelf() + ToReferenceFrame(); |
| 120 | } |
| 121 | |
| 122 | nsRect GetBounds(nsDisplayListBuilder*, bool* aSnap) const final { |
| 123 | return GetBounds(aSnap); |
| 124 | } |
| 125 | |
| 126 | void Paint(nsDisplayListBuilder*, gfxContext* aCtx) final; |
| 127 | |
| 128 | bool CreateWebRenderCommands(mozilla::wr::DisplayListBuilder&, |
| 129 | mozilla::wr::IpcResourceUpdateQueue&, |
| 130 | const StackingContextHelper&, |
| 131 | mozilla::layers::RenderRootStateManager*, |
| 132 | nsDisplayListBuilder*) final; |
| 133 | |
| 134 | NS_DISPLAY_DECL_NAME("Gradient", TYPE_GRADIENT)const char* Name() const override { return "Gradient"; } constexpr static DisplayItemType ItemType() { return DisplayItemType:: TYPE_GRADIENT; } private: void* operator new(size_t aSize, nsDisplayListBuilder * aBuilder) { return aBuilder->Allocate(aSize, DisplayItemType ::TYPE_GRADIENT); } template <typename T, typename F, typename ... Args> friend T* mozilla::MakeDisplayItemWithIndex( nsDisplayListBuilder * aBuilder, F* aFrame, const uint16_t aIndex, Args&&... aArgs); public: |
| 135 | }; |
| 136 | |
| 137 | void nsDisplayGradient::Paint(nsDisplayListBuilder* aBuilder, |
| 138 | gfxContext* aCtx) { |
| 139 | auto* frame = static_cast<nsImageFrame*>(Frame()); |
| 140 | nsImageRenderer imageRenderer(frame, frame->GetImageFromStyle(), |
| 141 | aBuilder->GetImageRendererFlags()); |
| 142 | nsSize size = frame->GetSize(); |
| 143 | imageRenderer.SetPreferredSize({}, size); |
| 144 | |
| 145 | ImgDrawResult result; |
| 146 | if (!imageRenderer.PrepareImage()) { |
| 147 | result = imageRenderer.PrepareResult(); |
| 148 | } else { |
| 149 | nsRect dest(ToReferenceFrame(), size); |
| 150 | result = imageRenderer.DrawLayer( |
| 151 | frame->PresContext(), *aCtx, dest, dest, dest.TopLeft(), |
| 152 | GetPaintRect(aBuilder, aCtx), dest.Size(), /* aOpacity = */ 1.0f); |
| 153 | } |
| 154 | Unused << result; |
| 155 | } |
| 156 | |
| 157 | bool nsDisplayGradient::CreateWebRenderCommands( |
| 158 | wr::DisplayListBuilder& aBuilder, wr::IpcResourceUpdateQueue& aResources, |
| 159 | const StackingContextHelper& aSc, |
| 160 | mozilla::layers::RenderRootStateManager* aManager, |
| 161 | nsDisplayListBuilder* aDisplayListBuilder) { |
| 162 | auto* frame = static_cast<nsImageFrame*>(Frame()); |
| 163 | nsImageRenderer imageRenderer(frame, frame->GetImageFromStyle(), |
| 164 | aDisplayListBuilder->GetImageRendererFlags()); |
| 165 | nsSize size = frame->GetSize(); |
| 166 | imageRenderer.SetPreferredSize({}, size); |
| 167 | |
| 168 | ImgDrawResult result; |
| 169 | if (!imageRenderer.PrepareImage()) { |
| 170 | result = imageRenderer.PrepareResult(); |
Value stored to 'result' is never read | |
| 171 | } else { |
| 172 | nsRect dest(ToReferenceFrame(), size); |
| 173 | result = imageRenderer.BuildWebRenderDisplayItemsForLayer( |
| 174 | frame->PresContext(), aBuilder, aResources, aSc, aManager, this, dest, |
| 175 | dest, dest.TopLeft(), dest, dest.Size(), |
| 176 | /* aOpacity = */ 1.0f); |
| 177 | if (result == ImgDrawResult::NOT_SUPPORTED) { |
| 178 | return false; |
| 179 | } |
| 180 | } |
| 181 | return true; |
| 182 | } |
| 183 | |
| 184 | // sizes (pixels) for image icon, padding and border frame |
| 185 | #define ICON_SIZE(16) (16) |
| 186 | #define ICON_PADDING(3) (3) |
| 187 | #define ALT_BORDER_WIDTH(1) (1) |
| 188 | |
| 189 | // Default alignment value (so we can tell an unset value from a set value) |
| 190 | #define ALIGN_UNSETuint8_t(-1) uint8_t(-1) |
| 191 | |
| 192 | class BrokenImageIcon final : public imgINotificationObserver { |
| 193 | // private class that wraps the data and logic needed for |
| 194 | // broken image and loading image icons |
| 195 | public: |
| 196 | explicit BrokenImageIcon(const nsImageFrame& aFrame); |
| 197 | static void Shutdown(); |
| 198 | |
| 199 | NS_DECL_ISUPPORTSpublic: virtual nsresult QueryInterface(const nsIID& aIID , void** aInstancePtr) override; virtual MozExternalRefCountType AddRef(void) override; virtual MozExternalRefCountType Release (void) override; using HasThreadSafeRefCnt = std::false_type; protected: nsAutoRefCnt mRefCnt; nsAutoOwningThread _mOwningThread ; public: |
| 200 | NS_DECL_IMGINOTIFICATIONOBSERVERvirtual void Notify(imgIRequest *aProxy, int32_t aType, const nsIntRect * aRect) override; |
| 201 | |
| 202 | static imgRequestProxy* GetImage(nsImageFrame* aFrame) { |
| 203 | return Get(*aFrame).mImage.get(); |
| 204 | } |
| 205 | |
| 206 | static void AddObserver(nsImageFrame* aFrame) { |
| 207 | auto& instance = Get(*aFrame); |
| 208 | MOZ_ASSERT(!instance.mObservers.Contains(aFrame),do { static_assert( mozilla::detail::AssertionConditionType< decltype(!instance.mObservers.Contains(aFrame))>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(! !(!instance.mObservers.Contains(aFrame)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!instance.mObservers.Contains(aFrame)" " (" "Observer shouldn't aleady be in array" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 209); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!instance.mObservers.Contains(aFrame)" ") (" "Observer shouldn't aleady be in array" ")"); do { *(( volatile int*)__null) = 209; __attribute__((nomerge)) ::abort (); } while (false); } } while (false) |
| 209 | "Observer shouldn't aleady be in array")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!instance.mObservers.Contains(aFrame))>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(! !(!instance.mObservers.Contains(aFrame)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!instance.mObservers.Contains(aFrame)" " (" "Observer shouldn't aleady be in array" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 209); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!instance.mObservers.Contains(aFrame)" ") (" "Observer shouldn't aleady be in array" ")"); do { *(( volatile int*)__null) = 209; __attribute__((nomerge)) ::abort (); } while (false); } } while (false); |
| 210 | instance.mObservers.AppendElement(aFrame); |
| 211 | } |
| 212 | |
| 213 | static void RemoveObserver(nsImageFrame* aFrame) { |
| 214 | auto& instance = Get(*aFrame); |
| 215 | DebugOnly<bool> didRemove = instance.mObservers.RemoveElement(aFrame); |
| 216 | MOZ_ASSERT(didRemove, "Observer not in array")do { static_assert( mozilla::detail::AssertionConditionType< decltype(didRemove)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(didRemove))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("didRemove" " (" "Observer not in array" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 216); AnnotateMozCrashReason("MOZ_ASSERT" "(" "didRemove" ") (" "Observer not in array" ")"); do { *((volatile int*)__null) = 216; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 217 | } |
| 218 | |
| 219 | private: |
| 220 | static BrokenImageIcon& Get(const nsImageFrame& aFrame) { |
| 221 | if (!gSingleton) { |
| 222 | gSingleton = new BrokenImageIcon(aFrame); |
| 223 | } |
| 224 | return *gSingleton; |
| 225 | } |
| 226 | |
| 227 | ~BrokenImageIcon() = default; |
| 228 | |
| 229 | nsTObserverArray<nsImageFrame*> mObservers; |
| 230 | RefPtr<imgRequestProxy> mImage; |
| 231 | |
| 232 | static StaticRefPtr<BrokenImageIcon> gSingleton; |
| 233 | }; |
| 234 | |
| 235 | StaticRefPtr<BrokenImageIcon> BrokenImageIcon::gSingleton; |
| 236 | |
| 237 | NS_IMPL_ISUPPORTS(BrokenImageIcon, imgINotificationObserver)MozExternalRefCountType BrokenImageIcon::AddRef(void) { static_assert (!std::is_destructible_v<BrokenImageIcon>, "Reference-counted class " "BrokenImageIcon" " should not have a public destructor. " "Make this class's destructor non-public" ); do { static_assert( mozilla::detail::AssertionConditionType <decltype(int32_t(mRefCnt) >= 0)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(int32_t(mRefCnt) >= 0))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("int32_t(mRefCnt) >= 0" " (" "illegal refcnt" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 237); AnnotateMozCrashReason("MOZ_ASSERT" "(" "int32_t(mRefCnt) >= 0" ") (" "illegal refcnt" ")"); do { *((volatile int*)__null) = 237; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); do { static_assert( mozilla::detail::AssertionConditionType <decltype("BrokenImageIcon" != nullptr)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!("BrokenImageIcon" != nullptr ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "\"BrokenImageIcon\" != nullptr" " (" "Must specify a name" ")" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 237); AnnotateMozCrashReason("MOZ_ASSERT" "(" "\"BrokenImageIcon\" != nullptr" ") (" "Must specify a name" ")"); do { *((volatile int*)__null ) = 237; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); if (!mRefCnt.isThreadSafe) _mOwningThread .AssertOwnership("BrokenImageIcon" " not thread-safe"); nsrefcnt count = ++mRefCnt; NS_LogAddRef((this), (count), ("BrokenImageIcon" ), (uint32_t)(sizeof(*this))); return count; } MozExternalRefCountType BrokenImageIcon::Release(void) { do { static_assert( mozilla ::detail::AssertionConditionType<decltype(int32_t(mRefCnt) > 0)>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(int32_t(mRefCnt) > 0))), 0))) { do { } while (false ); MOZ_ReportAssertionFailure("int32_t(mRefCnt) > 0" " (" "dup release" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 237); AnnotateMozCrashReason("MOZ_ASSERT" "(" "int32_t(mRefCnt) > 0" ") (" "dup release" ")"); do { *((volatile int*)__null) = 237 ; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); do { static_assert( mozilla::detail::AssertionConditionType <decltype("BrokenImageIcon" != nullptr)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!("BrokenImageIcon" != nullptr ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "\"BrokenImageIcon\" != nullptr" " (" "Must specify a name" ")" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 237); AnnotateMozCrashReason("MOZ_ASSERT" "(" "\"BrokenImageIcon\" != nullptr" ") (" "Must specify a name" ")"); do { *((volatile int*)__null ) = 237; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); if (!mRefCnt.isThreadSafe) _mOwningThread .AssertOwnership("BrokenImageIcon" " not thread-safe"); const char* const nametmp = "BrokenImageIcon"; nsrefcnt count = -- mRefCnt; NS_LogRelease((this), (count), (nametmp)); if (count == 0) { mRefCnt = 1; delete (this); return 0; } return count ; } nsresult BrokenImageIcon::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/generic/nsImageFrame.cpp" , 237); MOZ_PretendNoReturn(); } } while (0); nsresult rv = NS_ERROR_FAILURE ; static_assert(1 > 0, "Need more arguments to NS_INTERFACE_TABLE" ); static const QITableEntry table[] = { {&mozilla::detail ::kImplementedIID<BrokenImageIcon, imgINotificationObserver >, int32_t( reinterpret_cast<char*>(static_cast<imgINotificationObserver *>((BrokenImageIcon*)0x1000)) - reinterpret_cast<char*> ((BrokenImageIcon*)0x1000))}, {&mozilla::detail::kImplementedIID <BrokenImageIcon, nsISupports>, int32_t(reinterpret_cast <char*>(static_cast<nsISupports*>( static_cast< imgINotificationObserver*>((BrokenImageIcon*)0x1000))) - reinterpret_cast <char*>((BrokenImageIcon*)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); return rv; } |
| 238 | |
| 239 | BrokenImageIcon::BrokenImageIcon(const nsImageFrame& aFrame) { |
| 240 | constexpr auto brokenSrc = u"resource://gre-resources/broken-image.png"_ns; |
| 241 | nsCOMPtr<nsIURI> realURI; |
| 242 | NS_NewURI(getter_AddRefs(realURI), brokenSrc); |
| 243 | |
| 244 | MOZ_ASSERT(realURI, "how?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(realURI)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(realURI))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("realURI" " (" "how?" ")" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 244); AnnotateMozCrashReason("MOZ_ASSERT" "(" "realURI" ") (" "how?" ")"); do { *((volatile int*)__null) = 244; __attribute__ ((nomerge)) ::abort(); } while (false); } } while (false); |
| 245 | if (NS_WARN_IF(!realURI)NS_warn_if_impl(!realURI, "!realURI", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 245)) { |
| 246 | return; |
| 247 | } |
| 248 | |
| 249 | nsPresContext* pc = aFrame.PresContext(); |
| 250 | Document* doc = pc->Document(); |
| 251 | RefPtr<imgLoader> il = nsContentUtils::GetImgLoaderForDocument(doc); |
| 252 | |
| 253 | nsCOMPtr<nsILoadGroup> loadGroup = doc->GetDocumentLoadGroup(); |
| 254 | |
| 255 | // For icon loads, we don't need to merge with the loadgroup flags |
| 256 | const nsLoadFlags loadFlags = nsIRequest::LOAD_NORMAL; |
| 257 | const nsContentPolicyType contentPolicyType = |
| 258 | nsIContentPolicy::TYPE_INTERNAL_IMAGE; |
| 259 | |
| 260 | nsresult rv = |
| 261 | il->LoadImage(realURI, /* icon URI */ |
| 262 | nullptr, /* initial document URI; this is only |
| 263 | relevant for cookies, so does not |
| 264 | apply to icons. */ |
| 265 | nullptr, /* referrer (not relevant for icons) */ |
| 266 | nullptr, /* principal (not relevant for icons) */ |
| 267 | 0, loadGroup, this, nullptr, /* No context */ |
| 268 | nullptr, /* Not associated with any particular document */ |
| 269 | loadFlags, nullptr, contentPolicyType, u""_ns, |
| 270 | false, /* aUseUrgentStartForChannel */ |
| 271 | false, /* aLinkPreload */ |
| 272 | 0, FetchPriority::Auto, getter_AddRefs(mImage)); |
| 273 | Unused << NS_WARN_IF(NS_FAILED(rv))NS_warn_if_impl(((bool)(__builtin_expect(!!(NS_FAILED_impl(rv )), 0))), "NS_FAILED(rv)", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 273); |
| 274 | } |
| 275 | |
| 276 | void BrokenImageIcon::Shutdown() { |
| 277 | if (!gSingleton) { |
| 278 | return; |
| 279 | } |
| 280 | if (gSingleton->mImage) { |
| 281 | gSingleton->mImage->CancelAndForgetObserver(NS_ERROR_FAILURE); |
| 282 | gSingleton->mImage = nullptr; |
| 283 | } |
| 284 | gSingleton = nullptr; |
| 285 | } |
| 286 | |
| 287 | void BrokenImageIcon::Notify(imgIRequest* aRequest, int32_t aType, |
| 288 | const nsIntRect* aData) { |
| 289 | MOZ_ASSERT(aRequest)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aRequest)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aRequest))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aRequest", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 289); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aRequest" ")" ); do { *((volatile int*)__null) = 289; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 290 | |
| 291 | if (aType != imgINotificationObserver::LOAD_COMPLETE && |
| 292 | aType != imgINotificationObserver::FRAME_UPDATE) { |
| 293 | return; |
| 294 | } |
| 295 | |
| 296 | if (aType == imgINotificationObserver::LOAD_COMPLETE) { |
| 297 | nsCOMPtr<imgIContainer> image; |
| 298 | aRequest->GetImage(getter_AddRefs(image)); |
| 299 | if (!image) { |
| 300 | return; |
| 301 | } |
| 302 | |
| 303 | // Retrieve the image's intrinsic size. |
| 304 | int32_t width = 0; |
| 305 | int32_t height = 0; |
| 306 | image->GetWidth(&width); |
| 307 | image->GetHeight(&height); |
| 308 | |
| 309 | // Request a decode at that size. |
| 310 | image->RequestDecodeForSize(IntSize(width, height), |
| 311 | imgIContainer::DECODE_FLAGS_DEFAULT | |
| 312 | imgIContainer::FLAG_HIGH_QUALITY_SCALING); |
| 313 | } |
| 314 | |
| 315 | for (nsImageFrame* frame : mObservers.ForwardRange()) { |
| 316 | frame->InvalidateFrame(); |
| 317 | } |
| 318 | } |
| 319 | |
| 320 | // test if the width and height are fixed, looking at the style data |
| 321 | // This is used by nsImageFrame::ImageFrameTypeFor and should not be used for |
| 322 | // layout decisions. |
| 323 | static bool HaveSpecifiedSize(const nsStylePosition* aStylePosition) { |
| 324 | // check the width and height values in the reflow input's style struct |
| 325 | // - if width and height are specified as either coord or percentage, then |
| 326 | // the size of the image frame is constrained |
| 327 | return aStylePosition->mWidth.IsLengthPercentage() && |
| 328 | aStylePosition->mHeight.IsLengthPercentage(); |
| 329 | } |
| 330 | |
| 331 | template <typename SizeOrMaxSize> |
| 332 | static bool DependsOnIntrinsicSize(const SizeOrMaxSize& aMinOrMaxSize) { |
| 333 | auto length = nsIFrame::ToExtremumLength(aMinOrMaxSize); |
| 334 | if (!length) { |
| 335 | return false; |
| 336 | } |
| 337 | switch (*length) { |
| 338 | case nsIFrame::ExtremumLength::MinContent: |
| 339 | case nsIFrame::ExtremumLength::MaxContent: |
| 340 | case nsIFrame::ExtremumLength::FitContent: |
| 341 | case nsIFrame::ExtremumLength::FitContentFunction: |
| 342 | return true; |
| 343 | case nsIFrame::ExtremumLength::MozAvailable: |
| 344 | case nsIFrame::ExtremumLength::Stretch: |
| 345 | return false; |
| 346 | } |
| 347 | MOZ_ASSERT_UNREACHABLE("Unknown sizing keyword?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(false)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(false))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("false" " (" "MOZ_ASSERT_UNREACHABLE: " "Unknown sizing keyword?" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 347); AnnotateMozCrashReason("MOZ_ASSERT" "(" "false" ") (" "MOZ_ASSERT_UNREACHABLE: " "Unknown sizing keyword?" ")"); do { *((volatile int*)__null) = 347; __attribute__((nomerge)) :: abort(); } while (false); } } while (false); |
| 348 | return false; |
| 349 | } |
| 350 | |
| 351 | // Decide whether we can optimize away reflows that result from the |
| 352 | // image's intrinsic size changing. |
| 353 | static bool SizeDependsOnIntrinsicSize(const ReflowInput& aReflowInput) { |
| 354 | const auto& position = *aReflowInput.mStylePosition; |
| 355 | WritingMode wm = aReflowInput.GetWritingMode(); |
| 356 | // Don't try to make this optimization when an image has percentages |
| 357 | // in its 'width' or 'height'. The percentages might be treated like |
| 358 | // auto (especially for intrinsic width calculations and for heights). |
| 359 | // |
| 360 | // min-width: min-content and such can also affect our intrinsic size. |
| 361 | // but note that those keywords on the block axis behave like auto, so we |
| 362 | // don't need to check them. |
| 363 | // |
| 364 | // Flex item's min-[width|height]:auto resolution depends on intrinsic size. |
| 365 | return !position.mHeight.ConvertsToLength() || |
| 366 | !position.mWidth.ConvertsToLength() || |
| 367 | DependsOnIntrinsicSize(position.MinISize(wm)) || |
| 368 | DependsOnIntrinsicSize(position.MaxISize(wm)) || |
| 369 | aReflowInput.mFrame->IsFlexItem(); |
| 370 | } |
| 371 | |
| 372 | nsIFrame* NS_NewImageFrame(PresShell* aPresShell, ComputedStyle* aStyle) { |
| 373 | return new (aPresShell) nsImageFrame(aStyle, aPresShell->GetPresContext(), |
| 374 | nsImageFrame::Kind::ImageLoadingContent); |
| 375 | } |
| 376 | |
| 377 | nsIFrame* NS_NewXULImageFrame(PresShell* aPresShell, ComputedStyle* aStyle) { |
| 378 | return new (aPresShell) nsImageFrame(aStyle, aPresShell->GetPresContext(), |
| 379 | nsImageFrame::Kind::XULImage); |
| 380 | } |
| 381 | |
| 382 | nsIFrame* NS_NewImageFrameForContentProperty(PresShell* aPresShell, |
| 383 | ComputedStyle* aStyle) { |
| 384 | return new (aPresShell) nsImageFrame(aStyle, aPresShell->GetPresContext(), |
| 385 | nsImageFrame::Kind::ContentProperty); |
| 386 | } |
| 387 | |
| 388 | nsIFrame* NS_NewImageFrameForGeneratedContentIndex(PresShell* aPresShell, |
| 389 | ComputedStyle* aStyle) { |
| 390 | return new (aPresShell) |
| 391 | nsImageFrame(aStyle, aPresShell->GetPresContext(), |
| 392 | nsImageFrame::Kind::ContentPropertyAtIndex); |
| 393 | } |
| 394 | |
| 395 | nsIFrame* NS_NewImageFrameForListStyleImage(PresShell* aPresShell, |
| 396 | ComputedStyle* aStyle) { |
| 397 | return new (aPresShell) nsImageFrame(aStyle, aPresShell->GetPresContext(), |
| 398 | nsImageFrame::Kind::ListStyleImage); |
| 399 | } |
| 400 | |
| 401 | bool nsImageFrame::ShouldShowBrokenImageIcon() const { |
| 402 | // NOTE(emilio, https://github.com/w3c/csswg-drafts/issues/2832): WebKit and |
| 403 | // Blink behave differently here for content: url(..), for now adapt to |
| 404 | // Blink's behavior. |
| 405 | if (mKind != Kind::ImageLoadingContent) { |
| 406 | return false; |
| 407 | } |
| 408 | |
| 409 | if (!StaticPrefs::browser_display_show_image_placeholders()) { |
| 410 | return false; |
| 411 | } |
| 412 | |
| 413 | // <img alt=""> is special, and it shouldn't draw the broken image icon, |
| 414 | // unlike the no-alt attribute or non-empty-alt-attribute case. |
| 415 | if (auto* image = HTMLImageElement::FromNode(mContent)) { |
| 416 | const nsAttrValue* alt = image->GetParsedAttr(nsGkAtoms::alt); |
| 417 | if (alt && alt->IsEmptyString()) { |
| 418 | return false; |
| 419 | } |
| 420 | } |
| 421 | |
| 422 | // check for broken images. valid null images (eg. img src="") are |
| 423 | // not considered broken because they have no image requests |
| 424 | if (nsCOMPtr<imgIRequest> currentRequest = GetCurrentRequest()) { |
| 425 | uint32_t imageStatus; |
| 426 | return NS_SUCCEEDED(currentRequest->GetImageStatus(&imageStatus))((bool)(__builtin_expect(!!(!NS_FAILED_impl(currentRequest-> GetImageStatus(&imageStatus))), 1))) && |
| 427 | (imageStatus & imgIRequest::STATUS_ERROR); |
| 428 | } |
| 429 | |
| 430 | nsCOMPtr<nsIImageLoadingContent> imageLoader = do_QueryInterface(mContent); |
| 431 | MOZ_ASSERT(imageLoader)do { static_assert( mozilla::detail::AssertionConditionType< decltype(imageLoader)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(imageLoader))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("imageLoader", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 431); AnnotateMozCrashReason("MOZ_ASSERT" "(" "imageLoader" ")"); do { *((volatile int*)__null) = 431; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 432 | // Show the broken image icon only if we've tried to perform a load at all |
| 433 | // (that is, if we have a current uri). |
| 434 | nsCOMPtr<nsIURI> currentURI = imageLoader->GetCurrentURI(); |
| 435 | return !!currentURI; |
| 436 | } |
| 437 | |
| 438 | nsImageFrame* nsImageFrame::CreateContinuingFrame( |
| 439 | mozilla::PresShell* aPresShell, ComputedStyle* aStyle) const { |
| 440 | return new (aPresShell) |
| 441 | nsImageFrame(aStyle, aPresShell->GetPresContext(), mKind); |
| 442 | } |
| 443 | |
| 444 | NS_IMPL_FRAMEARENA_HELPERS(nsImageFrame)void* nsImageFrame ::operator new(size_t sz, mozilla::PresShell * aShell) { return aShell->AllocateFrame(nsQueryFrame::nsImageFrame_id , sz); } |
| 445 | |
| 446 | nsImageFrame::nsImageFrame(ComputedStyle* aStyle, nsPresContext* aPresContext, |
| 447 | ClassID aID, Kind aKind) |
| 448 | : nsAtomicContainerFrame(aStyle, aPresContext, aID), |
| 449 | mIntrinsicSize(0, 0), |
| 450 | mKind(aKind) { |
| 451 | EnableVisibilityTracking(); |
| 452 | } |
| 453 | |
| 454 | nsImageFrame::~nsImageFrame() = default; |
| 455 | |
| 456 | NS_QUERYFRAME_HEAD(nsImageFrame)void* nsImageFrame ::QueryFrame(FrameIID id) const { switch ( id) { |
| 457 | NS_QUERYFRAME_ENTRY(nsImageFrame)case nsImageFrame ::kFrameIID: { static_assert( std::is_same_v <nsImageFrame, nsImageFrame ::Has_NS_DECL_QUERYFRAME_TARGET >, "nsImageFrame" " must declare itself as a queryframe target" ); return const_cast<nsImageFrame*>(static_cast<const nsImageFrame*>(this)); } |
| 458 | NS_QUERYFRAME_TAIL_INHERITING(nsAtomicContainerFrame)default: break; } return nsAtomicContainerFrame ::QueryFrame( id); } |
| 459 | |
| 460 | #ifdef ACCESSIBILITY1 |
| 461 | a11y::AccType nsImageFrame::AccessibleType() { |
| 462 | if (mKind == Kind::ListStyleImage) { |
| 463 | // This is an HTMLListBulletAccessible. |
| 464 | return a11y::eNoType; |
| 465 | } |
| 466 | |
| 467 | // Don't use GetImageMap() to avoid reentrancy into accessibility. |
| 468 | if (HasImageMap()) { |
| 469 | return a11y::eHTMLImageMapType; |
| 470 | } |
| 471 | |
| 472 | return a11y::eImageType; |
| 473 | } |
| 474 | #endif |
| 475 | |
| 476 | void nsImageFrame::DisconnectMap() { |
| 477 | if (!mImageMap) { |
| 478 | return; |
| 479 | } |
| 480 | |
| 481 | mImageMap->Destroy(); |
| 482 | mImageMap = nullptr; |
| 483 | |
| 484 | #ifdef ACCESSIBILITY1 |
| 485 | if (nsAccessibilityService* accService = GetAccService()) { |
| 486 | accService->RecreateAccessible(PresShell(), mContent); |
| 487 | } |
| 488 | #endif |
| 489 | } |
| 490 | |
| 491 | void nsImageFrame::Destroy(DestroyContext& aContext) { |
| 492 | MaybeSendIntrinsicSizeAndRatioToEmbedder(Nothing(), Nothing()); |
| 493 | |
| 494 | if (mReflowCallbackPosted) { |
| 495 | PresShell()->CancelReflowCallback(this); |
| 496 | mReflowCallbackPosted = false; |
| 497 | } |
| 498 | |
| 499 | // Tell our image map, if there is one, to clean up |
| 500 | // This causes the nsImageMap to unregister itself as |
| 501 | // a DOM listener. |
| 502 | DisconnectMap(); |
| 503 | |
| 504 | MOZ_ASSERT(mListener)do { static_assert( mozilla::detail::AssertionConditionType< decltype(mListener)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mListener))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("mListener", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 504); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mListener" ")" ); do { *((volatile int*)__null) = 504; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 505 | |
| 506 | if (mKind == Kind::ImageLoadingContent) { |
| 507 | MOZ_ASSERT(!mOwnedRequest)do { static_assert( mozilla::detail::AssertionConditionType< decltype(!mOwnedRequest)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!mOwnedRequest))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!mOwnedRequest" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 507); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!mOwnedRequest" ")"); do { *((volatile int*)__null) = 507; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 508 | MOZ_ASSERT(!mOwnedRequestRegistered)do { static_assert( mozilla::detail::AssertionConditionType< decltype(!mOwnedRequestRegistered)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!mOwnedRequestRegistered))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!mOwnedRequestRegistered" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 508); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!mOwnedRequestRegistered" ")"); do { *((volatile int*)__null) = 508; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 509 | nsCOMPtr<nsIImageLoadingContent> imageLoader = do_QueryInterface(mContent); |
| 510 | MOZ_ASSERT(imageLoader)do { static_assert( mozilla::detail::AssertionConditionType< decltype(imageLoader)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(imageLoader))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("imageLoader", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 510); AnnotateMozCrashReason("MOZ_ASSERT" "(" "imageLoader" ")"); do { *((volatile int*)__null) = 510; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 511 | |
| 512 | // Notify our image loading content that we are going away so it can |
| 513 | // deregister with our refresh driver. |
| 514 | imageLoader->FrameDestroyed(this); |
| 515 | imageLoader->RemoveNativeObserver(mListener); |
| 516 | } else { |
| 517 | DeinitOwnedRequest(); |
| 518 | } |
| 519 | |
| 520 | // set the frame to null so we don't send messages to a dead object. |
| 521 | mListener->SetFrame(nullptr); |
| 522 | mListener = nullptr; |
| 523 | |
| 524 | // If we were displaying an icon, take ourselves off the list |
| 525 | if (mDisplayingIcon) { |
| 526 | BrokenImageIcon::RemoveObserver(this); |
| 527 | } |
| 528 | |
| 529 | nsAtomicContainerFrame::Destroy(aContext); |
| 530 | } |
| 531 | |
| 532 | void nsImageFrame::DeinitOwnedRequest() { |
| 533 | MOZ_ASSERT(mKind != Kind::ImageLoadingContent)do { static_assert( mozilla::detail::AssertionConditionType< decltype(mKind != Kind::ImageLoadingContent)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mKind != Kind::ImageLoadingContent ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "mKind != Kind::ImageLoadingContent", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 533); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mKind != Kind::ImageLoadingContent" ")"); do { *((volatile int*)__null) = 533; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 534 | if (!mOwnedRequest) { |
| 535 | return; |
| 536 | } |
| 537 | PresContext()->Document()->ImageTracker()->Remove(mOwnedRequest); |
| 538 | nsLayoutUtils::DeregisterImageRequest(PresContext(), mOwnedRequest, |
| 539 | &mOwnedRequestRegistered); |
| 540 | mOwnedRequest->CancelAndForgetObserver(NS_BINDING_ABORTED); |
| 541 | mOwnedRequest = nullptr; |
| 542 | } |
| 543 | |
| 544 | void nsImageFrame::DidSetComputedStyle(ComputedStyle* aOldStyle) { |
| 545 | nsAtomicContainerFrame::DidSetComputedStyle(aOldStyle); |
| 546 | |
| 547 | // A ::marker's default size is calculated from the font's em-size. |
| 548 | if (IsForMarkerPseudo()) { |
| 549 | mIntrinsicSize = IntrinsicSize(0, 0); |
| 550 | UpdateIntrinsicSize(); |
| 551 | } |
| 552 | |
| 553 | // Normal "owned" images reframe when `content` or `list-style-image` change, |
| 554 | // but XUL images don't (and we don't really need to). So deal with the |
| 555 | // dynamic list-style-image change in that case. |
| 556 | // |
| 557 | // TODO(emilio): We might want to do the same for regular list-style-image or |
| 558 | // even simple content: url() changes. |
| 559 | if (mKind == Kind::XULImage && aOldStyle) { |
| 560 | if (!mContent->AsElement()->HasNonEmptyAttr(nsGkAtoms::src) && |
| 561 | aOldStyle->StyleList()->mListStyleImage != |
| 562 | StyleList()->mListStyleImage) { |
| 563 | UpdateXULImage(); |
| 564 | } |
| 565 | // If we have no image our intrinsic size might be themed. We need to |
| 566 | // update the size even if the effective appearance hasn't changed to |
| 567 | // deal correctly with theme changes. |
| 568 | if (!mOwnedRequest) { |
| 569 | UpdateIntrinsicSize(); |
| 570 | } |
| 571 | } |
| 572 | |
| 573 | // We need to update our orientation either if we had no ComputedStyle before |
| 574 | // because this is the first time it's been set, or if the image-orientation |
| 575 | // property changed from its previous value. |
| 576 | bool shouldUpdateOrientation = false; |
| 577 | nsCOMPtr<imgIRequest> currentRequest = GetCurrentRequest(); |
| 578 | const auto newOrientation = |
| 579 | StyleVisibility()->UsedImageOrientation(currentRequest); |
| 580 | if (mImage) { |
| 581 | if (aOldStyle) { |
| 582 | auto oldOrientation = |
| 583 | aOldStyle->StyleVisibility()->UsedImageOrientation(currentRequest); |
| 584 | shouldUpdateOrientation = oldOrientation != newOrientation; |
| 585 | } else { |
| 586 | shouldUpdateOrientation = true; |
| 587 | } |
| 588 | } |
| 589 | |
| 590 | if (shouldUpdateOrientation) { |
| 591 | nsCOMPtr<imgIContainer> image(mImage->Unwrap()); |
| 592 | mImage = nsLayoutUtils::OrientImage(image, newOrientation); |
| 593 | |
| 594 | UpdateIntrinsicSize(); |
| 595 | UpdateIntrinsicRatio(); |
| 596 | } else if (!aOldStyle || aOldStyle->StylePosition()->mAspectRatio != |
| 597 | StylePosition()->mAspectRatio) { |
| 598 | UpdateIntrinsicRatio(); |
| 599 | } |
| 600 | } |
| 601 | |
| 602 | static bool SizeIsAvailable(imgIRequest* aRequest) { |
| 603 | if (!aRequest) { |
| 604 | return false; |
| 605 | } |
| 606 | |
| 607 | uint32_t imageStatus = 0; |
| 608 | nsresult rv = aRequest->GetImageStatus(&imageStatus); |
| 609 | return NS_SUCCEEDED(rv)((bool)(__builtin_expect(!!(!NS_FAILED_impl(rv)), 1))) && (imageStatus & imgIRequest::STATUS_SIZE_AVAILABLE); |
| 610 | } |
| 611 | |
| 612 | const StyleImage* nsImageFrame::GetImageFromStyle() const { |
| 613 | switch (mKind) { |
| 614 | case Kind::ImageLoadingContent: |
| 615 | break; |
| 616 | case Kind::ListStyleImage: |
| 617 | MOZ_ASSERT(do { static_assert( mozilla::detail::AssertionConditionType< decltype(GetParent()->GetContent()->IsGeneratedContentContainerForMarker ())>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(GetParent()->GetContent()->IsGeneratedContentContainerForMarker ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("GetParent()->GetContent()->IsGeneratedContentContainerForMarker()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 618); AnnotateMozCrashReason("MOZ_ASSERT" "(" "GetParent()->GetContent()->IsGeneratedContentContainerForMarker()" ")"); do { *((volatile int*)__null) = 618; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 618 | GetParent()->GetContent()->IsGeneratedContentContainerForMarker())do { static_assert( mozilla::detail::AssertionConditionType< decltype(GetParent()->GetContent()->IsGeneratedContentContainerForMarker ())>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(GetParent()->GetContent()->IsGeneratedContentContainerForMarker ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("GetParent()->GetContent()->IsGeneratedContentContainerForMarker()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 618); AnnotateMozCrashReason("MOZ_ASSERT" "(" "GetParent()->GetContent()->IsGeneratedContentContainerForMarker()" ")"); do { *((volatile int*)__null) = 618; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 619 | MOZ_ASSERT(mContent->IsHTMLElement(nsGkAtoms::mozgeneratedcontentimage))do { static_assert( mozilla::detail::AssertionConditionType< decltype(mContent->IsHTMLElement(nsGkAtoms::mozgeneratedcontentimage ))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(mContent->IsHTMLElement(nsGkAtoms::mozgeneratedcontentimage )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("mContent->IsHTMLElement(nsGkAtoms::mozgeneratedcontentimage)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 619); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mContent->IsHTMLElement(nsGkAtoms::mozgeneratedcontentimage)" ")"); do { *((volatile int*)__null) = 619; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 620 | return &StyleList()->mListStyleImage; |
| 621 | case Kind::XULImage: |
| 622 | MOZ_ASSERT(!mContent->AsElement()->HasNonEmptyAttr(nsGkAtoms::src))do { static_assert( mozilla::detail::AssertionConditionType< decltype(!mContent->AsElement()->HasNonEmptyAttr(nsGkAtoms ::src))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!mContent->AsElement()->HasNonEmptyAttr(nsGkAtoms ::src)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!mContent->AsElement()->HasNonEmptyAttr(nsGkAtoms::src)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 622); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!mContent->AsElement()->HasNonEmptyAttr(nsGkAtoms::src)" ")"); do { *((volatile int*)__null) = 622; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 623 | return &StyleList()->mListStyleImage; |
| 624 | case Kind::ContentProperty: |
| 625 | case Kind::ContentPropertyAtIndex: { |
| 626 | uint32_t contentIndex = 0; |
| 627 | const nsStyleContent* styleContent = StyleContent(); |
| 628 | if (mKind == Kind::ContentPropertyAtIndex) { |
| 629 | MOZ_RELEASE_ASSERT(do { static_assert( mozilla::detail::AssertionConditionType< decltype(mContent->IsHTMLElement(nsGkAtoms::mozgeneratedcontentimage ))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(mContent->IsHTMLElement(nsGkAtoms::mozgeneratedcontentimage )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("mContent->IsHTMLElement(nsGkAtoms::mozgeneratedcontentimage)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 630); AnnotateMozCrashReason("MOZ_RELEASE_ASSERT" "(" "mContent->IsHTMLElement(nsGkAtoms::mozgeneratedcontentimage)" ")"); do { *((volatile int*)__null) = 630; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 630 | mContent->IsHTMLElement(nsGkAtoms::mozgeneratedcontentimage))do { static_assert( mozilla::detail::AssertionConditionType< decltype(mContent->IsHTMLElement(nsGkAtoms::mozgeneratedcontentimage ))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(mContent->IsHTMLElement(nsGkAtoms::mozgeneratedcontentimage )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("mContent->IsHTMLElement(nsGkAtoms::mozgeneratedcontentimage)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 630); AnnotateMozCrashReason("MOZ_RELEASE_ASSERT" "(" "mContent->IsHTMLElement(nsGkAtoms::mozgeneratedcontentimage)" ")"); do { *((volatile int*)__null) = 630; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 631 | contentIndex = |
| 632 | static_cast<GeneratedImageContent*>(mContent.get())->Index(); |
| 633 | |
| 634 | // TODO(emilio): Consider inheriting the `content` property instead of |
| 635 | // doing this parent traversal? |
| 636 | nsIFrame* parent = GetParent(); |
| 637 | MOZ_DIAGNOSTIC_ASSERT(do { static_assert( mozilla::detail::AssertionConditionType< decltype(parent->GetContent()->IsGeneratedContentContainerForMarker () || parent->GetContent()->IsGeneratedContentContainerForAfter () || parent->GetContent()->IsGeneratedContentContainerForBefore ())>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(parent->GetContent()->IsGeneratedContentContainerForMarker () || parent->GetContent()->IsGeneratedContentContainerForAfter () || parent->GetContent()->IsGeneratedContentContainerForBefore ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("parent->GetContent()->IsGeneratedContentContainerForMarker() || parent->GetContent()->IsGeneratedContentContainerForAfter() || parent->GetContent()->IsGeneratedContentContainerForBefore()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 640); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "parent->GetContent()->IsGeneratedContentContainerForMarker() || parent->GetContent()->IsGeneratedContentContainerForAfter() || parent->GetContent()->IsGeneratedContentContainerForBefore()" ")"); do { *((volatile int*)__null) = 640; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 638 | parent->GetContent()->IsGeneratedContentContainerForMarker() ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(parent->GetContent()->IsGeneratedContentContainerForMarker () || parent->GetContent()->IsGeneratedContentContainerForAfter () || parent->GetContent()->IsGeneratedContentContainerForBefore ())>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(parent->GetContent()->IsGeneratedContentContainerForMarker () || parent->GetContent()->IsGeneratedContentContainerForAfter () || parent->GetContent()->IsGeneratedContentContainerForBefore ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("parent->GetContent()->IsGeneratedContentContainerForMarker() || parent->GetContent()->IsGeneratedContentContainerForAfter() || parent->GetContent()->IsGeneratedContentContainerForBefore()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 640); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "parent->GetContent()->IsGeneratedContentContainerForMarker() || parent->GetContent()->IsGeneratedContentContainerForAfter() || parent->GetContent()->IsGeneratedContentContainerForBefore()" ")"); do { *((volatile int*)__null) = 640; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 639 | parent->GetContent()->IsGeneratedContentContainerForAfter() ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(parent->GetContent()->IsGeneratedContentContainerForMarker () || parent->GetContent()->IsGeneratedContentContainerForAfter () || parent->GetContent()->IsGeneratedContentContainerForBefore ())>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(parent->GetContent()->IsGeneratedContentContainerForMarker () || parent->GetContent()->IsGeneratedContentContainerForAfter () || parent->GetContent()->IsGeneratedContentContainerForBefore ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("parent->GetContent()->IsGeneratedContentContainerForMarker() || parent->GetContent()->IsGeneratedContentContainerForAfter() || parent->GetContent()->IsGeneratedContentContainerForBefore()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 640); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "parent->GetContent()->IsGeneratedContentContainerForMarker() || parent->GetContent()->IsGeneratedContentContainerForAfter() || parent->GetContent()->IsGeneratedContentContainerForBefore()" ")"); do { *((volatile int*)__null) = 640; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 640 | parent->GetContent()->IsGeneratedContentContainerForBefore())do { static_assert( mozilla::detail::AssertionConditionType< decltype(parent->GetContent()->IsGeneratedContentContainerForMarker () || parent->GetContent()->IsGeneratedContentContainerForAfter () || parent->GetContent()->IsGeneratedContentContainerForBefore ())>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(parent->GetContent()->IsGeneratedContentContainerForMarker () || parent->GetContent()->IsGeneratedContentContainerForAfter () || parent->GetContent()->IsGeneratedContentContainerForBefore ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("parent->GetContent()->IsGeneratedContentContainerForMarker() || parent->GetContent()->IsGeneratedContentContainerForAfter() || parent->GetContent()->IsGeneratedContentContainerForBefore()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 640); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "parent->GetContent()->IsGeneratedContentContainerForMarker() || parent->GetContent()->IsGeneratedContentContainerForAfter() || parent->GetContent()->IsGeneratedContentContainerForBefore()" ")"); do { *((volatile int*)__null) = 640; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 641 | nsIFrame* nonAnonymousParent = parent; |
| 642 | while (nonAnonymousParent->Style()->IsAnonBox()) { |
| 643 | nonAnonymousParent = nonAnonymousParent->GetParent(); |
| 644 | } |
| 645 | MOZ_DIAGNOSTIC_ASSERT(parent->GetContent() ==do { static_assert( mozilla::detail::AssertionConditionType< decltype(parent->GetContent() == nonAnonymousParent->GetContent ())>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(parent->GetContent() == nonAnonymousParent->GetContent ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("parent->GetContent() == nonAnonymousParent->GetContent()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 646); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "parent->GetContent() == nonAnonymousParent->GetContent()" ")"); do { *((volatile int*)__null) = 646; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 646 | nonAnonymousParent->GetContent())do { static_assert( mozilla::detail::AssertionConditionType< decltype(parent->GetContent() == nonAnonymousParent->GetContent ())>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(parent->GetContent() == nonAnonymousParent->GetContent ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("parent->GetContent() == nonAnonymousParent->GetContent()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 646); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "parent->GetContent() == nonAnonymousParent->GetContent()" ")"); do { *((volatile int*)__null) = 646; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 647 | styleContent = nonAnonymousParent->StyleContent(); |
| 648 | } |
| 649 | auto items = styleContent->NonAltContentItems(); |
| 650 | MOZ_RELEASE_ASSERT(contentIndex < items.Length())do { static_assert( mozilla::detail::AssertionConditionType< decltype(contentIndex < items.Length())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(contentIndex < items.Length ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("contentIndex < items.Length()", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 650); AnnotateMozCrashReason("MOZ_RELEASE_ASSERT" "(" "contentIndex < items.Length()" ")"); do { *((volatile int*)__null) = 650; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 651 | const auto& contentItem = items[contentIndex]; |
| 652 | MOZ_RELEASE_ASSERT(contentItem.IsImage())do { static_assert( mozilla::detail::AssertionConditionType< decltype(contentItem.IsImage())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(contentItem.IsImage()))), 0) )) { do { } while (false); MOZ_ReportAssertionFailure("contentItem.IsImage()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 652); AnnotateMozCrashReason("MOZ_RELEASE_ASSERT" "(" "contentItem.IsImage()" ")"); do { *((volatile int*)__null) = 652; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 653 | return &contentItem.AsImage(); |
| 654 | } |
| 655 | } |
| 656 | MOZ_ASSERT_UNREACHABLE("Don't call me")do { static_assert( mozilla::detail::AssertionConditionType< decltype(false)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(false))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("false" " (" "MOZ_ASSERT_UNREACHABLE: " "Don't call me" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 656); AnnotateMozCrashReason("MOZ_ASSERT" "(" "false" ") (" "MOZ_ASSERT_UNREACHABLE: " "Don't call me" ")"); do { *((volatile int*)__null) = 656; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 657 | return nullptr; |
| 658 | } |
| 659 | |
| 660 | void nsImageFrame::UpdateXULImage() { |
| 661 | MOZ_ASSERT(mKind == Kind::XULImage)do { static_assert( mozilla::detail::AssertionConditionType< decltype(mKind == Kind::XULImage)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mKind == Kind::XULImage))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("mKind == Kind::XULImage" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 661); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mKind == Kind::XULImage" ")"); do { *((volatile int*)__null) = 661; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 662 | DeinitOwnedRequest(); |
| 663 | |
| 664 | nsAutoString src; |
| 665 | nsPresContext* pc = PresContext(); |
| 666 | if (mContent->AsElement()->GetAttr(nsGkAtoms::src, src) && !src.IsEmpty()) { |
| 667 | nsContentPolicyType contentPolicyType; |
| 668 | nsCOMPtr<nsIPrincipal> triggeringPrincipal; |
| 669 | uint64_t requestContextID = 0; |
| 670 | nsContentUtils::GetContentPolicyTypeForUIImageLoading( |
| 671 | mContent, getter_AddRefs(triggeringPrincipal), contentPolicyType, |
| 672 | &requestContextID); |
| 673 | nsCOMPtr<nsIURI> uri; |
| 674 | nsContentUtils::NewURIWithDocumentCharset( |
| 675 | getter_AddRefs(uri), src, pc->Document(), mContent->GetBaseURI()); |
| 676 | if (uri) { |
| 677 | auto referrerInfo = MakeRefPtr<ReferrerInfo>(*mContent->AsElement()); |
| 678 | nsContentUtils::LoadImage( |
| 679 | uri, mContent, pc->Document(), triggeringPrincipal, requestContextID, |
| 680 | referrerInfo, mListener, nsIRequest::LOAD_NORMAL, u""_ns, |
| 681 | getter_AddRefs(mOwnedRequest), contentPolicyType); |
| 682 | SetupOwnedRequest(); |
| 683 | } |
| 684 | } else { |
| 685 | const auto* image = GetImageFromStyle(); |
| 686 | if (image->IsImageRequestType()) { |
| 687 | if (imgRequestProxy* proxy = image->GetImageRequest()) { |
| 688 | proxy->Clone(mListener, pc->Document(), getter_AddRefs(mOwnedRequest)); |
| 689 | SetupOwnedRequest(); |
| 690 | } |
| 691 | } |
| 692 | } |
| 693 | |
| 694 | if (!mOwnedRequest) { |
| 695 | UpdateImage(nullptr, nullptr); |
| 696 | } |
| 697 | } |
| 698 | |
| 699 | void nsImageFrame::Init(nsIContent* aContent, nsContainerFrame* aParent, |
| 700 | nsIFrame* aPrevInFlow) { |
| 701 | MOZ_ASSERT_IF(aPrevInFlow,do { if (aPrevInFlow) { do { static_assert( mozilla::detail:: AssertionConditionType<decltype(aPrevInFlow->Type() == Type () && static_cast<nsImageFrame*>(aPrevInFlow)-> mKind == mKind)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(aPrevInFlow->Type() == Type () && static_cast<nsImageFrame*>(aPrevInFlow)-> mKind == mKind))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aPrevInFlow->Type() == Type() && static_cast<nsImageFrame*>(aPrevInFlow)->mKind == mKind" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 703); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aPrevInFlow->Type() == Type() && static_cast<nsImageFrame*>(aPrevInFlow)->mKind == mKind" ")"); do { *((volatile int*)__null) = 703; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false) |
| 702 | aPrevInFlow->Type() == Type() &&do { if (aPrevInFlow) { do { static_assert( mozilla::detail:: AssertionConditionType<decltype(aPrevInFlow->Type() == Type () && static_cast<nsImageFrame*>(aPrevInFlow)-> mKind == mKind)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(aPrevInFlow->Type() == Type () && static_cast<nsImageFrame*>(aPrevInFlow)-> mKind == mKind))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aPrevInFlow->Type() == Type() && static_cast<nsImageFrame*>(aPrevInFlow)->mKind == mKind" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 703); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aPrevInFlow->Type() == Type() && static_cast<nsImageFrame*>(aPrevInFlow)->mKind == mKind" ")"); do { *((volatile int*)__null) = 703; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false) |
| 703 | static_cast<nsImageFrame*>(aPrevInFlow)->mKind == mKind)do { if (aPrevInFlow) { do { static_assert( mozilla::detail:: AssertionConditionType<decltype(aPrevInFlow->Type() == Type () && static_cast<nsImageFrame*>(aPrevInFlow)-> mKind == mKind)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(aPrevInFlow->Type() == Type () && static_cast<nsImageFrame*>(aPrevInFlow)-> mKind == mKind))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aPrevInFlow->Type() == Type() && static_cast<nsImageFrame*>(aPrevInFlow)->mKind == mKind" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 703); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aPrevInFlow->Type() == Type() && static_cast<nsImageFrame*>(aPrevInFlow)->mKind == mKind" ")"); do { *((volatile int*)__null) = 703; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); |
| 704 | |
| 705 | nsAtomicContainerFrame::Init(aContent, aParent, aPrevInFlow); |
| 706 | |
| 707 | mListener = new nsImageListener(this); |
| 708 | |
| 709 | GetImageMap(); // Ensure to init the image map asap. This is important to |
| 710 | // make <area> elements focusable. |
| 711 | |
| 712 | if (StaticPrefs::layout_image_eager_broken_image_icon()) { |
| 713 | Unused << BrokenImageIcon::GetImage(this); |
| 714 | } |
| 715 | |
| 716 | nsPresContext* pc = PresContext(); |
| 717 | if (mKind == Kind::ImageLoadingContent) { |
| 718 | nsCOMPtr<nsIImageLoadingContent> imageLoader = do_QueryInterface(aContent); |
| 719 | MOZ_ASSERT(imageLoader)do { static_assert( mozilla::detail::AssertionConditionType< decltype(imageLoader)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(imageLoader))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("imageLoader", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 719); AnnotateMozCrashReason("MOZ_ASSERT" "(" "imageLoader" ")"); do { *((volatile int*)__null) = 719; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 720 | imageLoader->AddNativeObserver(mListener); |
| 721 | // We have a PresContext now, so we need to notify the image content node |
| 722 | // that it can register images. |
| 723 | imageLoader->FrameCreated(this); |
| 724 | AssertSyncDecodingHintIsInSync(); |
| 725 | if (nsIDocShell* docShell = pc->GetDocShell()) { |
| 726 | RefPtr<BrowsingContext> bc = docShell->GetBrowsingContext(); |
| 727 | mIsInObjectOrEmbed = bc->IsEmbedderTypeObjectOrEmbed() && |
| 728 | pc->Document()->IsImageDocument(); |
| 729 | } |
| 730 | } else if (mKind == Kind::XULImage) { |
| 731 | UpdateXULImage(); |
| 732 | } else { |
| 733 | const StyleImage* image = GetImageFromStyle(); |
| 734 | if (image->IsImageRequestType()) { |
| 735 | if (imgRequestProxy* proxy = image->GetImageRequest()) { |
| 736 | proxy->Clone(mListener, pc->Document(), getter_AddRefs(mOwnedRequest)); |
| 737 | SetupOwnedRequest(); |
| 738 | } |
| 739 | } |
| 740 | } |
| 741 | |
| 742 | // Give image loads associated with an image frame a small priority boost. |
| 743 | if (nsCOMPtr<imgIRequest> currentRequest = GetCurrentRequest()) { |
| 744 | uint32_t categoryToBoostPriority = imgIRequest::CATEGORY_FRAME_INIT; |
| 745 | |
| 746 | // Increase load priority further if intrinsic size might be important for |
| 747 | // layout. |
| 748 | if (!HaveSpecifiedSize(StylePosition())) { |
| 749 | categoryToBoostPriority |= imgIRequest::CATEGORY_SIZE_QUERY; |
| 750 | } |
| 751 | |
| 752 | currentRequest->BoostPriority(categoryToBoostPriority); |
| 753 | } |
| 754 | |
| 755 | MaybeSendIntrinsicSizeAndRatioToEmbedder(); |
| 756 | } |
| 757 | |
| 758 | void nsImageFrame::SetupOwnedRequest() { |
| 759 | MOZ_ASSERT(mKind != Kind::ImageLoadingContent)do { static_assert( mozilla::detail::AssertionConditionType< decltype(mKind != Kind::ImageLoadingContent)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mKind != Kind::ImageLoadingContent ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "mKind != Kind::ImageLoadingContent", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 759); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mKind != Kind::ImageLoadingContent" ")"); do { *((volatile int*)__null) = 759; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 760 | if (!mOwnedRequest) { |
| 761 | return; |
| 762 | } |
| 763 | |
| 764 | // We're not using AssociateRequestToFrame for the content property, so we |
| 765 | // need to add it to the image tracker manually. |
| 766 | PresContext()->Document()->ImageTracker()->Add(mOwnedRequest); |
| 767 | |
| 768 | uint32_t status = 0; |
| 769 | nsresult rv = mOwnedRequest->GetImageStatus(&status); |
| 770 | if (NS_FAILED(rv)((bool)(__builtin_expect(!!(NS_FAILED_impl(rv)), 0)))) { |
| 771 | return; |
| 772 | } |
| 773 | |
| 774 | if (status & imgIRequest::STATUS_SIZE_AVAILABLE) { |
| 775 | nsCOMPtr<imgIContainer> image; |
| 776 | mOwnedRequest->GetImage(getter_AddRefs(image)); |
| 777 | OnSizeAvailable(mOwnedRequest, image); |
| 778 | } |
| 779 | |
| 780 | if (status & imgIRequest::STATUS_FRAME_COMPLETE) { |
| 781 | mFirstFrameComplete = true; |
| 782 | } |
| 783 | |
| 784 | if (status & imgIRequest::STATUS_IS_ANIMATED) { |
| 785 | nsLayoutUtils::RegisterImageRequest(PresContext(), mOwnedRequest, |
| 786 | &mOwnedRequestRegistered); |
| 787 | } |
| 788 | } |
| 789 | |
| 790 | static void ScaleIntrinsicSizeForDensity(IntrinsicSize& aSize, |
| 791 | const ImageResolution& aResolution) { |
| 792 | if (aSize.width) { |
| 793 | aResolution.ApplyXTo(aSize.width.ref()); |
| 794 | } |
| 795 | if (aSize.height) { |
| 796 | aResolution.ApplyYTo(aSize.height.ref()); |
| 797 | } |
| 798 | } |
| 799 | |
| 800 | static void ScaleIntrinsicSizeForDensity(imgIContainer* aImage, |
| 801 | nsIContent& aContent, |
| 802 | IntrinsicSize& aSize) { |
| 803 | ImageResolution resolution = aImage->GetResolution(); |
| 804 | if (auto* image = HTMLImageElement::FromNode(aContent)) { |
| 805 | if (auto* selector = image->GetResponsiveImageSelector()) { |
| 806 | resolution.ScaleBy(selector->GetSelectedImageDensity()); |
| 807 | } |
| 808 | } |
| 809 | ScaleIntrinsicSizeForDensity(aSize, resolution); |
| 810 | } |
| 811 | |
| 812 | static nscoord ListImageDefaultLength(const nsImageFrame& aFrame) { |
| 813 | // https://drafts.csswg.org/css-lists-3/#image-markers |
| 814 | // The spec says we should use 1em x 1em, but that seems too large. |
| 815 | // See disussion in https://github.com/w3c/csswg-drafts/issues/4207 |
| 816 | auto* pc = aFrame.PresContext(); |
| 817 | RefPtr<nsFontMetrics> fm = |
| 818 | nsLayoutUtils::GetFontMetricsForComputedStyle(aFrame.Style(), pc); |
| 819 | RefPtr<gfxFont> font = fm->GetThebesFontGroup()->GetFirstValidFont(); |
| 820 | auto emAU = |
| 821 | font->GetMetrics(fm->Orientation()).emHeight * pc->AppUnitsPerDevPixel(); |
| 822 | return std::max(NSToCoordRound(0.4f * emAU), |
| 823 | nsPresContext::CSSPixelsToAppUnits(1)); |
| 824 | } |
| 825 | |
| 826 | IntrinsicSize nsImageFrame::ComputeIntrinsicSize( |
| 827 | bool aIgnoreContainment) const { |
| 828 | const auto containAxes = |
| 829 | aIgnoreContainment ? ContainSizeAxes(false, false) : GetContainSizeAxes(); |
| 830 | if (containAxes.IsBoth()) { |
| 831 | return FinishIntrinsicSize(containAxes, IntrinsicSize(0, 0)); |
| 832 | } |
| 833 | |
| 834 | nsSize size; |
| 835 | if (mImage && NS_SUCCEEDED(mImage->GetIntrinsicSize(&size))((bool)(__builtin_expect(!!(!NS_FAILED_impl(mImage->GetIntrinsicSize (&size))), 1)))) { |
| 836 | IntrinsicSize intrinsicSize; |
| 837 | intrinsicSize.width = size.width == -1 ? Nothing() : Some(size.width); |
| 838 | intrinsicSize.height = size.height == -1 ? Nothing() : Some(size.height); |
| 839 | if (mKind == nsImageFrame::Kind::ListStyleImage) { |
| 840 | if (intrinsicSize.width.isNothing() || intrinsicSize.height.isNothing()) { |
| 841 | nscoord defaultLength = ListImageDefaultLength(*this); |
| 842 | if (intrinsicSize.width.isNothing()) { |
| 843 | intrinsicSize.width = Some(defaultLength); |
| 844 | } |
| 845 | if (intrinsicSize.height.isNothing()) { |
| 846 | intrinsicSize.height = Some(defaultLength); |
| 847 | } |
| 848 | } |
| 849 | } |
| 850 | if (mKind == nsImageFrame::Kind::ImageLoadingContent || |
| 851 | (mKind == nsImageFrame::Kind::XULImage && |
| 852 | GetContent()->AsElement()->HasNonEmptyAttr(nsGkAtoms::src))) { |
| 853 | ScaleIntrinsicSizeForDensity(mImage, *GetContent(), intrinsicSize); |
| 854 | } else { |
| 855 | ScaleIntrinsicSizeForDensity( |
| 856 | intrinsicSize, GetImageFromStyle()->GetResolution(*Style())); |
| 857 | } |
| 858 | return FinishIntrinsicSize(containAxes, intrinsicSize); |
| 859 | } |
| 860 | |
| 861 | if (mKind == nsImageFrame::Kind::ListStyleImage) { |
| 862 | // Note: images are handled above, this handles gradients etc. |
| 863 | const nscoord defaultLength = ListImageDefaultLength(*this); |
| 864 | return FinishIntrinsicSize(containAxes, |
| 865 | IntrinsicSize(defaultLength, defaultLength)); |
| 866 | } |
| 867 | |
| 868 | if (mKind == nsImageFrame::Kind::XULImage && IsThemed()) { |
| 869 | nsPresContext* pc = PresContext(); |
| 870 | // FIXME: const_cast here is a bit evil but IsThemed and so does the same. |
| 871 | const auto widgetSize = pc->Theme()->GetMinimumWidgetSize( |
| 872 | pc, const_cast<nsImageFrame*>(this), |
| 873 | StyleDisplay()->EffectiveAppearance()); |
| 874 | const IntrinsicSize intrinsicSize( |
| 875 | LayoutDeviceIntSize::ToAppUnits(widgetSize, pc->AppUnitsPerDevPixel())); |
| 876 | return FinishIntrinsicSize(containAxes, intrinsicSize); |
| 877 | } |
| 878 | |
| 879 | if (ShouldShowBrokenImageIcon()) { |
| 880 | nscoord edgeLengthToUse = nsPresContext::CSSPixelsToAppUnits( |
| 881 | ICON_SIZE(16) + (2 * (ICON_PADDING(3) + ALT_BORDER_WIDTH(1)))); |
| 882 | return FinishIntrinsicSize(containAxes, |
| 883 | IntrinsicSize(edgeLengthToUse, edgeLengthToUse)); |
| 884 | } |
| 885 | |
| 886 | if (ShouldUseMappedAspectRatio() && |
| 887 | StylePosition()->mAspectRatio.HasRatio()) { |
| 888 | return IntrinsicSize(); |
| 889 | } |
| 890 | |
| 891 | // XXX: No FinishIntrinsicSize? |
| 892 | return IntrinsicSize(0, 0); |
| 893 | } |
| 894 | |
| 895 | // For compat reasons, see bug 1602047, we don't use the intrinsic ratio from |
| 896 | // width="" and height="" for images with no src attribute (no request). |
| 897 | // |
| 898 | // But we shouldn't get fooled by <img loading=lazy>. We do want to apply the |
| 899 | // ratio then... |
| 900 | bool nsImageFrame::ShouldUseMappedAspectRatio() const { |
| 901 | if (mKind != Kind::ImageLoadingContent) { |
| 902 | return true; |
| 903 | } |
| 904 | nsCOMPtr<imgIRequest> currentRequest = GetCurrentRequest(); |
| 905 | if (currentRequest) { |
| 906 | return true; |
| 907 | } |
| 908 | // TODO(emilio): Investigate the compat situation of the above check, maybe we |
| 909 | // can just check for empty src attribute or something... |
| 910 | auto* image = HTMLImageElement::FromNode(mContent); |
| 911 | return image && image->IsAwaitingLoadOrLazyLoading(); |
| 912 | } |
| 913 | |
| 914 | bool nsImageFrame::UpdateIntrinsicSize() { |
| 915 | IntrinsicSize oldIntrinsicSize = mIntrinsicSize; |
| 916 | mIntrinsicSize = ComputeIntrinsicSize(); |
| 917 | return mIntrinsicSize != oldIntrinsicSize; |
| 918 | } |
| 919 | |
| 920 | AspectRatio nsImageFrame::ComputeIntrinsicRatioForImage( |
| 921 | imgIContainer* aImage, bool aIgnoreContainment) const { |
| 922 | if (!aIgnoreContainment && GetContainSizeAxes().IsAny()) { |
| 923 | return AspectRatio(); |
| 924 | } |
| 925 | |
| 926 | if (aImage) { |
| 927 | if (Maybe<AspectRatio> fromImage = aImage->GetIntrinsicRatio()) { |
| 928 | return *fromImage; |
| 929 | } |
| 930 | } |
| 931 | if (ShouldUseMappedAspectRatio()) { |
| 932 | const StyleAspectRatio& ratio = StylePosition()->mAspectRatio; |
| 933 | if (ratio.auto_ && ratio.HasRatio()) { |
| 934 | // Return the mapped intrinsic aspect ratio stored in |
| 935 | // nsStylePosition::mAspectRatio. |
| 936 | return ratio.ratio.AsRatio().ToLayoutRatio(UseBoxSizing::Yes); |
| 937 | } |
| 938 | } |
| 939 | if (ShouldShowBrokenImageIcon()) { |
| 940 | return AspectRatio(1.0f); |
| 941 | } |
| 942 | return AspectRatio(); |
| 943 | } |
| 944 | |
| 945 | bool nsImageFrame::UpdateIntrinsicRatio() { |
| 946 | AspectRatio oldIntrinsicRatio = mIntrinsicRatio; |
| 947 | mIntrinsicRatio = ComputeIntrinsicRatioForImage(mImage); |
| 948 | return mIntrinsicRatio != oldIntrinsicRatio; |
| 949 | } |
| 950 | |
| 951 | bool nsImageFrame::GetSourceToDestTransform(nsTransform2D& aTransform) { |
| 952 | nsRect destRect = GetDestRect(GetContentRectRelativeToSelf()); |
| 953 | // Set the translation components, based on destRect |
| 954 | // XXXbz does this introduce rounding errors because of the cast to |
| 955 | // float? Should we just manually add that stuff in every time |
| 956 | // instead? |
| 957 | aTransform.SetToTranslate(float(destRect.x), float(destRect.y)); |
| 958 | |
| 959 | // NOTE(emilio): This intrinsicSize is not the same as the layout intrinsic |
| 960 | // size (mIntrinsicSize), which can be scaled due to ResponsiveImageSelector, |
| 961 | // see ScaleIntrinsicSizeForDensity. |
| 962 | nsSize intrinsicSize; |
| 963 | if (!mImage || !NS_SUCCEEDED(mImage->GetIntrinsicSize(&intrinsicSize))((bool)(__builtin_expect(!!(!NS_FAILED_impl(mImage->GetIntrinsicSize (&intrinsicSize))), 1))) || |
| 964 | intrinsicSize.IsEmpty()) { |
| 965 | return false; |
| 966 | } |
| 967 | |
| 968 | aTransform.SetScale(float(destRect.width) / float(intrinsicSize.width), |
| 969 | float(destRect.height) / float(intrinsicSize.height)); |
| 970 | return true; |
| 971 | } |
| 972 | |
| 973 | // This function checks whether the given request is the current request for our |
| 974 | // mContent. |
| 975 | bool nsImageFrame::IsPendingLoad(imgIRequest* aRequest) const { |
| 976 | // Default to pending load in case of errors |
| 977 | if (mKind != Kind::ImageLoadingContent) { |
| 978 | MOZ_ASSERT(aRequest == mOwnedRequest)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aRequest == mOwnedRequest)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aRequest == mOwnedRequest))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("aRequest == mOwnedRequest" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 978); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aRequest == mOwnedRequest" ")"); do { *((volatile int*)__null) = 978; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 979 | return false; |
| 980 | } |
| 981 | |
| 982 | nsCOMPtr<nsIImageLoadingContent> imageLoader(do_QueryInterface(mContent)); |
| 983 | MOZ_ASSERT(imageLoader)do { static_assert( mozilla::detail::AssertionConditionType< decltype(imageLoader)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(imageLoader))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("imageLoader", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 983); AnnotateMozCrashReason("MOZ_ASSERT" "(" "imageLoader" ")"); do { *((volatile int*)__null) = 983; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 984 | |
| 985 | int32_t requestType = nsIImageLoadingContent::UNKNOWN_REQUEST; |
| 986 | imageLoader->GetRequestType(aRequest, &requestType); |
| 987 | |
| 988 | return requestType != nsIImageLoadingContent::CURRENT_REQUEST; |
| 989 | } |
| 990 | |
| 991 | nsRect nsImageFrame::SourceRectToDest(const nsIntRect& aRect) { |
| 992 | // When scaling the image, row N of the source image may (depending on |
| 993 | // the scaling function) be used to draw any row in the destination image |
| 994 | // between floor(F * (N-1)) and ceil(F * (N+1)), where F is the |
| 995 | // floating-point scaling factor. The same holds true for columns. |
| 996 | // So, we start by computing that bound without the floor and ceiling. |
| 997 | |
| 998 | nsRect r(nsPresContext::CSSPixelsToAppUnits(aRect.x - 1), |
| 999 | nsPresContext::CSSPixelsToAppUnits(aRect.y - 1), |
| 1000 | nsPresContext::CSSPixelsToAppUnits(aRect.width + 2), |
| 1001 | nsPresContext::CSSPixelsToAppUnits(aRect.height + 2)); |
| 1002 | |
| 1003 | nsTransform2D sourceToDest; |
| 1004 | if (!GetSourceToDestTransform(sourceToDest)) { |
| 1005 | // Failed to generate transform matrix. Return our whole content area, |
| 1006 | // to be on the safe side (since this method is used for generating |
| 1007 | // invalidation rects). |
| 1008 | return GetContentRectRelativeToSelf(); |
| 1009 | } |
| 1010 | |
| 1011 | sourceToDest.TransformCoord(&r.x, &r.y, &r.width, &r.height); |
| 1012 | |
| 1013 | // Now, round the edges out to the pixel boundary. |
| 1014 | nscoord scale = nsPresContext::CSSPixelsToAppUnits(1); |
| 1015 | nscoord right = r.x + r.width; |
| 1016 | nscoord bottom = r.y + r.height; |
| 1017 | |
| 1018 | r.x -= (scale + (r.x % scale)) % scale; |
| 1019 | r.y -= (scale + (r.y % scale)) % scale; |
| 1020 | r.width = right + ((scale - (right % scale)) % scale) - r.x; |
| 1021 | r.height = bottom + ((scale - (bottom % scale)) % scale) - r.y; |
| 1022 | |
| 1023 | return r; |
| 1024 | } |
| 1025 | |
| 1026 | static bool ImageOk(ElementState aState) { |
| 1027 | return !aState.HasState(ElementState::BROKEN); |
| 1028 | } |
| 1029 | |
| 1030 | static bool HasAltText(const Element& aElement) { |
| 1031 | // We always return some alternate text for <input>, see |
| 1032 | // nsCSSFrameConstructor::GetAlternateTextFor. |
| 1033 | if (aElement.IsHTMLElement(nsGkAtoms::input)) { |
| 1034 | return true; |
| 1035 | } |
| 1036 | |
| 1037 | MOZ_ASSERT(aElement.IsHTMLElement(nsGkAtoms::img))do { static_assert( mozilla::detail::AssertionConditionType< decltype(aElement.IsHTMLElement(nsGkAtoms::img))>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(aElement.IsHTMLElement(nsGkAtoms::img)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aElement.IsHTMLElement(nsGkAtoms::img)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 1037); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aElement.IsHTMLElement(nsGkAtoms::img)" ")"); do { *((volatile int*)__null) = 1037; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1038 | return aElement.HasNonEmptyAttr(nsGkAtoms::alt); |
| 1039 | } |
| 1040 | |
| 1041 | bool nsImageFrame::ShouldCreateImageFrameForContentProperty( |
| 1042 | const Element& aElement, const ComputedStyle& aStyle) { |
| 1043 | if (aElement.IsRootOfNativeAnonymousSubtree()) { |
| 1044 | return false; |
| 1045 | } |
| 1046 | Span<const StyleContentItem> items = |
| 1047 | aStyle.StyleContent()->NonAltContentItems(); |
| 1048 | return items.Length() == 1 && items[0].IsImage(); |
| 1049 | } |
| 1050 | |
| 1051 | // Check if we want to use an image frame or just let the frame constructor make |
| 1052 | // us into an inline, and if so, which kind of image frame should we create. |
| 1053 | /* static */ |
| 1054 | auto nsImageFrame::ImageFrameTypeFor( |
| 1055 | const Element& aElement, const ComputedStyle& aStyle) -> ImageFrameType { |
| 1056 | if (ShouldCreateImageFrameForContentProperty(aElement, aStyle)) { |
| 1057 | // Prefer the content property, for compat reasons, see bug 1484928. |
| 1058 | return ImageFrameType::ForContentProperty; |
| 1059 | } |
| 1060 | |
| 1061 | if (ImageOk(aElement.State())) { |
| 1062 | // Image is fine or loading; do the image frame thing |
| 1063 | return ImageFrameType::ForElementRequest; |
| 1064 | } |
| 1065 | |
| 1066 | if (aStyle.StyleUIReset()->mMozForceBrokenImageIcon) { |
| 1067 | return ImageFrameType::ForElementRequest; |
| 1068 | } |
| 1069 | |
| 1070 | if (!HasAltText(aElement)) { |
| 1071 | return ImageFrameType::ForElementRequest; |
| 1072 | } |
| 1073 | |
| 1074 | // FIXME(emilio, bug 1788767): We definitely don't reframe when |
| 1075 | // HaveSpecifiedSize changes... |
| 1076 | if (aElement.OwnerDoc()->GetCompatibilityMode() == eCompatibility_NavQuirks && |
| 1077 | HaveSpecifiedSize(aStyle.StylePosition())) { |
| 1078 | return ImageFrameType::ForElementRequest; |
| 1079 | } |
| 1080 | |
| 1081 | return ImageFrameType::None; |
| 1082 | } |
| 1083 | |
| 1084 | void nsImageFrame::Notify(imgIRequest* aRequest, int32_t aType, |
| 1085 | const nsIntRect* aRect) { |
| 1086 | if (aType == imgINotificationObserver::SIZE_AVAILABLE) { |
| 1087 | nsCOMPtr<imgIContainer> image; |
| 1088 | aRequest->GetImage(getter_AddRefs(image)); |
| 1089 | return OnSizeAvailable(aRequest, image); |
| 1090 | } |
| 1091 | |
| 1092 | if (aType == imgINotificationObserver::FRAME_UPDATE) { |
| 1093 | return OnFrameUpdate(aRequest, aRect); |
| 1094 | } |
| 1095 | |
| 1096 | if (aType == imgINotificationObserver::FRAME_COMPLETE) { |
| 1097 | mFirstFrameComplete = true; |
| 1098 | } |
| 1099 | |
| 1100 | if (aType == imgINotificationObserver::IS_ANIMATED && |
| 1101 | mKind != Kind::ImageLoadingContent) { |
| 1102 | nsLayoutUtils::RegisterImageRequest(PresContext(), mOwnedRequest, |
| 1103 | &mOwnedRequestRegistered); |
| 1104 | } |
| 1105 | |
| 1106 | if (aType == imgINotificationObserver::LOAD_COMPLETE) { |
| 1107 | LargestContentfulPaint::MaybeProcessImageForElementTiming( |
| 1108 | static_cast<imgRequestProxy*>(aRequest), GetContent()->AsElement()); |
| 1109 | uint32_t imgStatus; |
| 1110 | aRequest->GetImageStatus(&imgStatus); |
| 1111 | nsresult status = |
| 1112 | imgStatus & imgIRequest::STATUS_ERROR ? NS_ERROR_FAILURE : NS_OK; |
| 1113 | return OnLoadComplete(aRequest, status); |
| 1114 | } |
| 1115 | } |
| 1116 | |
| 1117 | void nsImageFrame::OnSizeAvailable(imgIRequest* aRequest, |
| 1118 | imgIContainer* aImage) { |
| 1119 | if (!aImage) { |
| 1120 | return; |
| 1121 | } |
| 1122 | |
| 1123 | /* Get requested animation policy from the pres context: |
| 1124 | * normal = 0 |
| 1125 | * one frame = 1 |
| 1126 | * one loop = 2 |
| 1127 | */ |
| 1128 | aImage->SetAnimationMode(PresContext()->ImageAnimationMode()); |
| 1129 | |
| 1130 | if (IsPendingLoad(aRequest)) { |
| 1131 | // We don't care |
| 1132 | return; |
| 1133 | } |
| 1134 | |
| 1135 | UpdateImage(aRequest, aImage); |
| 1136 | } |
| 1137 | |
| 1138 | void nsImageFrame::UpdateImage(imgIRequest* aRequest, imgIContainer* aImage) { |
| 1139 | if (SizeIsAvailable(aRequest)) { |
| 1140 | StyleImageOrientation orientation = |
| 1141 | StyleVisibility()->UsedImageOrientation(aRequest); |
| 1142 | // This is valid and for the current request, so update our stored image |
| 1143 | // container, orienting according to our style. |
| 1144 | mImage = nsLayoutUtils::OrientImage(aImage, orientation); |
| 1145 | MOZ_ASSERT(mImage)do { static_assert( mozilla::detail::AssertionConditionType< decltype(mImage)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(mImage))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("mImage", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 1145); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mImage" ")" ); do { *((volatile int*)__null) = 1145; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1146 | } else { |
| 1147 | // We no longer have a valid image, so release our stored image container. |
| 1148 | mImage = mPrevImage = nullptr; |
| 1149 | if (mKind == Kind::ListStyleImage) { |
| 1150 | auto* genContent = static_cast<GeneratedImageContent*>(GetContent()); |
| 1151 | genContent->NotifyLoadFailed(); |
| 1152 | // No need to continue below since the above state change will destroy |
| 1153 | // this frame. |
| 1154 | return; |
| 1155 | } |
| 1156 | } |
| 1157 | |
| 1158 | UpdateIntrinsicSizeAndRatio(); |
| 1159 | |
| 1160 | if (!GotInitialReflow()) { |
| 1161 | return; |
| 1162 | } |
| 1163 | |
| 1164 | // We're going to need to repaint now either way. |
| 1165 | InvalidateFrame(); |
| 1166 | } |
| 1167 | |
| 1168 | void nsImageFrame::OnFrameUpdate(imgIRequest* aRequest, |
| 1169 | const nsIntRect* aRect) { |
| 1170 | if (NS_WARN_IF(!aRect)NS_warn_if_impl(!aRect, "!aRect", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 1170)) { |
| 1171 | return; |
| 1172 | } |
| 1173 | |
| 1174 | if (!GotInitialReflow()) { |
| 1175 | // Don't bother to do anything; we have a reflow coming up! |
| 1176 | return; |
| 1177 | } |
| 1178 | |
| 1179 | if (mFirstFrameComplete && !StyleVisibility()->IsVisible()) { |
| 1180 | return; |
| 1181 | } |
| 1182 | |
| 1183 | if (IsPendingLoad(aRequest)) { |
| 1184 | // We don't care |
| 1185 | return; |
| 1186 | } |
| 1187 | |
| 1188 | nsIntRect layerInvalidRect = |
| 1189 | mImage ? mImage->GetImageSpaceInvalidationRect(*aRect) : *aRect; |
| 1190 | |
| 1191 | if (layerInvalidRect.IsEqualInterior(GetMaxSizedIntRect())) { |
| 1192 | // Invalidate our entire area. |
| 1193 | InvalidateSelf(nullptr, nullptr); |
| 1194 | return; |
| 1195 | } |
| 1196 | |
| 1197 | nsRect frameInvalidRect = SourceRectToDest(layerInvalidRect); |
| 1198 | InvalidateSelf(&layerInvalidRect, &frameInvalidRect); |
| 1199 | } |
| 1200 | |
| 1201 | void nsImageFrame::InvalidateSelf(const nsIntRect* aLayerInvalidRect, |
| 1202 | const nsRect* aFrameInvalidRect) { |
| 1203 | // Check if WebRender has interacted with this frame. If it has |
| 1204 | // we need to let it know that things have changed. |
| 1205 | const auto type = DisplayItemType::TYPE_IMAGE; |
| 1206 | const auto providerId = mImage ? mImage->GetProviderId() : 0; |
| 1207 | if (WebRenderUserData::ProcessInvalidateForImage(this, type, providerId)) { |
| 1208 | return; |
| 1209 | } |
| 1210 | |
| 1211 | InvalidateLayer(type, aLayerInvalidRect, aFrameInvalidRect); |
| 1212 | |
| 1213 | if (!mFirstFrameComplete) { |
| 1214 | InvalidateLayer(DisplayItemType::TYPE_ALT_FEEDBACK, aLayerInvalidRect, |
| 1215 | aFrameInvalidRect); |
| 1216 | } |
| 1217 | } |
| 1218 | |
| 1219 | void nsImageFrame::MaybeSendIntrinsicSizeAndRatioToEmbedder() { |
| 1220 | MaybeSendIntrinsicSizeAndRatioToEmbedder(Some(GetIntrinsicSize()), |
| 1221 | Some(GetAspectRatio())); |
| 1222 | } |
| 1223 | |
| 1224 | void nsImageFrame::MaybeSendIntrinsicSizeAndRatioToEmbedder( |
| 1225 | Maybe<IntrinsicSize> aIntrinsicSize, Maybe<AspectRatio> aIntrinsicRatio) { |
| 1226 | if (!mIsInObjectOrEmbed || !mImage) { |
| 1227 | return; |
| 1228 | } |
| 1229 | |
| 1230 | nsCOMPtr<nsIDocShell> docShell = PresContext()->GetDocShell(); |
| 1231 | if (!docShell) { |
| 1232 | return; |
| 1233 | } |
| 1234 | |
| 1235 | BrowsingContext* bc = docShell->GetBrowsingContext(); |
| 1236 | if (!bc) { |
| 1237 | return; |
| 1238 | } |
| 1239 | MOZ_ASSERT(bc->IsContentSubframe())do { static_assert( mozilla::detail::AssertionConditionType< decltype(bc->IsContentSubframe())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(bc->IsContentSubframe())) ), 0))) { do { } while (false); MOZ_ReportAssertionFailure("bc->IsContentSubframe()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 1239); AnnotateMozCrashReason("MOZ_ASSERT" "(" "bc->IsContentSubframe()" ")"); do { *((volatile int*)__null) = 1239; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1240 | |
| 1241 | if (bc->GetParent()->IsInProcess()) { |
| 1242 | if (Element* embedder = bc->GetEmbedderElement()) { |
| 1243 | if (nsCOMPtr<nsIObjectLoadingContent> olc = do_QueryInterface(embedder)) { |
| 1244 | static_cast<nsObjectLoadingContent*>(olc.get()) |
| 1245 | ->SubdocumentIntrinsicSizeOrRatioChanged(aIntrinsicSize, |
| 1246 | aIntrinsicRatio); |
| 1247 | } else { |
| 1248 | MOZ_ASSERT_UNREACHABLE("Got out of sync?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(false)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(false))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("false" " (" "MOZ_ASSERT_UNREACHABLE: " "Got out of sync?" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 1248); AnnotateMozCrashReason("MOZ_ASSERT" "(" "false" ") (" "MOZ_ASSERT_UNREACHABLE: " "Got out of sync?" ")"); do { *(( volatile int*)__null) = 1248; __attribute__((nomerge)) ::abort (); } while (false); } } while (false); |
| 1249 | } |
| 1250 | return; |
| 1251 | } |
| 1252 | } |
| 1253 | |
| 1254 | if (BrowserChild* browserChild = BrowserChild::GetFrom(docShell)) { |
| 1255 | Unused << browserChild->SendIntrinsicSizeOrRatioChanged(aIntrinsicSize, |
| 1256 | aIntrinsicRatio); |
| 1257 | } |
| 1258 | } |
| 1259 | |
| 1260 | void nsImageFrame::OnLoadComplete(imgIRequest* aRequest, nsresult aStatus) { |
| 1261 | NotifyNewCurrentRequest(aRequest, aStatus); |
| 1262 | } |
| 1263 | |
| 1264 | void nsImageFrame::ElementStateChanged(ElementState aStates) { |
| 1265 | if (!(aStates & ElementState::BROKEN)) { |
| 1266 | return; |
| 1267 | } |
| 1268 | if (mKind != Kind::ImageLoadingContent) { |
| 1269 | return; |
| 1270 | } |
| 1271 | if (!ImageOk(mContent->AsElement()->State())) { |
| 1272 | UpdateImage(nullptr, nullptr); |
| 1273 | } |
| 1274 | } |
| 1275 | |
| 1276 | void nsImageFrame::ResponsiveContentDensityChanged() { |
| 1277 | UpdateIntrinsicSizeAndRatio(); |
| 1278 | } |
| 1279 | |
| 1280 | void nsImageFrame::UpdateIntrinsicSizeAndRatio() { |
| 1281 | bool intrinsicSizeOrRatioChanged = [&] { |
| 1282 | // NOTE(emilio): We intentionally want to call both functions and avoid |
| 1283 | // short-circuiting. |
| 1284 | bool intrinsicSizeChanged = UpdateIntrinsicSize(); |
| 1285 | bool intrinsicRatioChanged = UpdateIntrinsicRatio(); |
| 1286 | return intrinsicSizeChanged || intrinsicRatioChanged; |
| 1287 | }(); |
| 1288 | |
| 1289 | if (!intrinsicSizeOrRatioChanged) { |
| 1290 | return; |
| 1291 | } |
| 1292 | |
| 1293 | // Our aspect-ratio property value changed, and an embedding <object> or |
| 1294 | // <embed> might care about that. |
| 1295 | MaybeSendIntrinsicSizeAndRatioToEmbedder(); |
| 1296 | |
| 1297 | if (!GotInitialReflow()) { |
| 1298 | return; |
| 1299 | } |
| 1300 | |
| 1301 | // Now we need to reflow if we have an unconstrained size and have |
| 1302 | // already gotten the initial reflow. |
| 1303 | if (!HasAnyStateBits(IMAGE_SIZECONSTRAINED)) { |
| 1304 | PresShell()->FrameNeedsReflow( |
| 1305 | this, IntrinsicDirty::FrameAncestorsAndDescendants, NS_FRAME_IS_DIRTY); |
| 1306 | } else if (PresShell()->IsActive()) { |
| 1307 | // We've already gotten the initial reflow, and our size hasn't changed, |
| 1308 | // so we're ready to request a decode. |
| 1309 | MaybeDecodeForPredictedSize(); |
| 1310 | } |
| 1311 | } |
| 1312 | |
| 1313 | void nsImageFrame::NotifyNewCurrentRequest(imgIRequest* aRequest, |
| 1314 | nsresult aStatus) { |
| 1315 | nsCOMPtr<imgIContainer> image; |
| 1316 | aRequest->GetImage(getter_AddRefs(image)); |
| 1317 | NS_ASSERTION(image || NS_FAILED(aStatus),do { if (!(image || ((bool)(__builtin_expect(!!(NS_FAILED_impl (aStatus)), 0))))) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Successful load with no container?" , "image || NS_FAILED(aStatus)", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 1318); MOZ_PretendNoReturn(); } } while (0) |
| 1318 | "Successful load with no container?")do { if (!(image || ((bool)(__builtin_expect(!!(NS_FAILED_impl (aStatus)), 0))))) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Successful load with no container?" , "image || NS_FAILED(aStatus)", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 1318); MOZ_PretendNoReturn(); } } while (0); |
| 1319 | UpdateImage(aRequest, image); |
| 1320 | } |
| 1321 | |
| 1322 | void nsImageFrame::MaybeDecodeForPredictedSize() { |
| 1323 | // Check that we're ready to decode. |
| 1324 | if (!mImage) { |
| 1325 | return; // Nothing to do yet. |
| 1326 | } |
| 1327 | |
| 1328 | if (mComputedSize.IsEmpty()) { |
| 1329 | return; // We won't draw anything, so no point in decoding. |
| 1330 | } |
| 1331 | |
| 1332 | if (GetVisibility() != Visibility::ApproximatelyVisible) { |
| 1333 | return; // We're not visible, so don't decode. |
| 1334 | } |
| 1335 | |
| 1336 | // OK, we're ready to decode. Compute the scale to the screen... |
| 1337 | mozilla::PresShell* presShell = PresShell(); |
| 1338 | MatrixScales scale = |
| 1339 | ScaleFactor<UnknownUnits, UnknownUnits>( |
| 1340 | presShell->GetCumulativeResolution()) * |
| 1341 | nsLayoutUtils::GetTransformToAncestorScaleExcludingAnimated(this); |
| 1342 | auto resolutionToScreen = ViewAs<LayoutDeviceToScreenScale2D>(scale); |
| 1343 | |
| 1344 | // If we are in a remote browser, then apply scaling from ancestor browsers |
| 1345 | if (BrowserChild* browserChild = BrowserChild::GetFrom(presShell)) { |
| 1346 | resolutionToScreen = |
| 1347 | resolutionToScreen * ViewAs<ScreenToScreenScale2D>( |
| 1348 | browserChild->GetEffectsInfo().mRasterScale); |
| 1349 | } |
| 1350 | |
| 1351 | // ...and this frame's content box... |
| 1352 | const nsPoint offset = |
| 1353 | GetOffsetToCrossDoc(nsLayoutUtils::GetReferenceFrame(this)); |
| 1354 | const nsRect frameContentBox = GetContentRectRelativeToSelf() + offset; |
| 1355 | |
| 1356 | // ...and our predicted dest rect... |
| 1357 | const int32_t factor = PresContext()->AppUnitsPerDevPixel(); |
| 1358 | const LayoutDeviceRect destRect = |
| 1359 | LayoutDeviceRect::FromAppUnits(GetDestRect(frameContentBox), factor); |
| 1360 | |
| 1361 | // ...and use them to compute our predicted size in screen pixels. |
| 1362 | const ScreenSize predictedScreenSize = destRect.Size() * resolutionToScreen; |
| 1363 | const ScreenIntSize predictedScreenIntSize = |
| 1364 | RoundedToInt(predictedScreenSize); |
| 1365 | if (predictedScreenIntSize.IsEmpty()) { |
| 1366 | return; |
| 1367 | } |
| 1368 | |
| 1369 | // Determine the optimal image size to use. |
| 1370 | uint32_t flags = imgIContainer::FLAG_HIGH_QUALITY_SCALING | |
| 1371 | imgIContainer::FLAG_ASYNC_NOTIFY; |
| 1372 | SamplingFilter samplingFilter = |
| 1373 | nsLayoutUtils::GetSamplingFilterForFrame(this); |
| 1374 | gfxSize gfxPredictedScreenSize = |
| 1375 | gfxSize(predictedScreenIntSize.width, predictedScreenIntSize.height); |
| 1376 | nsIntSize predictedImageSize = mImage->OptimalImageSizeForDest( |
| 1377 | gfxPredictedScreenSize, imgIContainer::FRAME_CURRENT, samplingFilter, |
| 1378 | flags); |
| 1379 | |
| 1380 | // Request a decode. |
| 1381 | mImage->RequestDecodeForSize(predictedImageSize, flags); |
| 1382 | } |
| 1383 | |
| 1384 | nsRect nsImageFrame::GetDestRect(const nsRect& aFrameContentBox, |
| 1385 | nsPoint* aAnchorPoint) { |
| 1386 | // Note: To get the "dest rect", we have to provide the "constraint rect" |
| 1387 | // (which is the content-box, with the effects of fragmentation undone). |
| 1388 | nsRect constraintRect(aFrameContentBox.TopLeft(), mComputedSize); |
| 1389 | constraintRect.y -= GetContinuationOffset(); |
| 1390 | |
| 1391 | auto intrinsicSize = mIntrinsicSize; |
| 1392 | auto intrinsicRatio = mIntrinsicRatio; |
| 1393 | if (GetContainSizeAxes().IsAny()) { |
| 1394 | // Ignore containment for object-fit computations. |
| 1395 | const bool ignoreContainment = true; |
| 1396 | intrinsicSize = ComputeIntrinsicSize(ignoreContainment); |
| 1397 | intrinsicRatio = ComputeIntrinsicRatioForImage(mImage, ignoreContainment); |
| 1398 | } |
| 1399 | return nsLayoutUtils::ComputeObjectDestRect(constraintRect, intrinsicSize, |
| 1400 | intrinsicRatio, StylePosition(), |
| 1401 | aAnchorPoint); |
| 1402 | } |
| 1403 | |
| 1404 | bool nsImageFrame::IsForMarkerPseudo() const { |
| 1405 | if (mKind == Kind::ImageLoadingContent) { |
| 1406 | return false; |
| 1407 | } |
| 1408 | auto* subtreeRoot = GetContent()->GetClosestNativeAnonymousSubtreeRoot(); |
| 1409 | return subtreeRoot && subtreeRoot->IsGeneratedContentContainerForMarker(); |
| 1410 | } |
| 1411 | |
| 1412 | void nsImageFrame::EnsureIntrinsicSizeAndRatio() { |
| 1413 | const auto containAxes = GetContainSizeAxes(); |
| 1414 | if (containAxes.IsBoth()) { |
| 1415 | // If we have 'contain:size', then we have no intrinsic aspect ratio, |
| 1416 | // and the intrinsic size is determined by contain-intrinsic-size, |
| 1417 | // regardless of what our underlying image may think. |
| 1418 | mIntrinsicSize = FinishIntrinsicSize(containAxes, IntrinsicSize(0, 0)); |
| 1419 | mIntrinsicRatio = AspectRatio(); |
| 1420 | return; |
| 1421 | } |
| 1422 | |
| 1423 | // If mIntrinsicSize.width and height are 0, then we need to update from the |
| 1424 | // image container. Note that we handle ::marker intrinsic size/ratio in |
| 1425 | // DidSetComputedStyle. |
| 1426 | if (mIntrinsicSize != IntrinsicSize(0, 0) && !IsForMarkerPseudo()) { |
| 1427 | return; |
| 1428 | } |
| 1429 | |
| 1430 | bool intrinsicSizeOrRatioChanged = UpdateIntrinsicSize(); |
| 1431 | intrinsicSizeOrRatioChanged = |
| 1432 | UpdateIntrinsicRatio() || intrinsicSizeOrRatioChanged; |
| 1433 | |
| 1434 | if (intrinsicSizeOrRatioChanged) { |
| 1435 | // Our aspect-ratio property value changed, and an embedding <object> or |
| 1436 | // <embed> might care about that. |
| 1437 | MaybeSendIntrinsicSizeAndRatioToEmbedder(); |
| 1438 | } |
| 1439 | } |
| 1440 | |
| 1441 | nsIFrame::SizeComputationResult nsImageFrame::ComputeSize( |
| 1442 | gfxContext* aRenderingContext, WritingMode aWM, const LogicalSize& aCBSize, |
| 1443 | nscoord aAvailableISize, const LogicalSize& aMargin, |
| 1444 | const LogicalSize& aBorderPadding, const StyleSizeOverrides& aSizeOverrides, |
| 1445 | ComputeSizeFlags aFlags) { |
| 1446 | EnsureIntrinsicSizeAndRatio(); |
| 1447 | return {ComputeSizeWithIntrinsicDimensions( |
| 1448 | aRenderingContext, aWM, mIntrinsicSize, GetAspectRatio(), aCBSize, |
| 1449 | aMargin, aBorderPadding, aSizeOverrides, aFlags), |
| 1450 | AspectRatioUsage::None}; |
| 1451 | } |
| 1452 | |
| 1453 | Element* nsImageFrame::GetMapElement() const { |
| 1454 | return IsForImageLoadingContent() |
| 1455 | ? nsImageLoadingContent::FindImageMap(mContent->AsElement()) |
| 1456 | : nullptr; |
| 1457 | } |
| 1458 | |
| 1459 | // get the offset into the content area of the image where aImg starts if it is |
| 1460 | // a continuation. |
| 1461 | nscoord nsImageFrame::GetContinuationOffset() const { |
| 1462 | nscoord offset = 0; |
| 1463 | for (nsIFrame* f = GetPrevInFlow(); f; f = f->GetPrevInFlow()) { |
| 1464 | offset += f->GetContentRect().height; |
| 1465 | } |
| 1466 | NS_ASSERTION(offset >= 0, "bogus GetContentRect")do { if (!(offset >= 0)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "bogus GetContentRect", "offset >= 0", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 1466); MOZ_PretendNoReturn(); } } while (0); |
| 1467 | return offset; |
| 1468 | } |
| 1469 | |
| 1470 | nscoord nsImageFrame::IntrinsicISize(const IntrinsicSizeInput& aInput, |
| 1471 | IntrinsicISizeType aType) { |
| 1472 | EnsureIntrinsicSizeAndRatio(); |
| 1473 | return mIntrinsicSize.ISize(GetWritingMode()).valueOr(0); |
| 1474 | } |
| 1475 | |
| 1476 | void nsImageFrame::ReflowChildren(nsPresContext* aPresContext, |
| 1477 | const ReflowInput& aReflowInput, |
| 1478 | const LogicalSize& aImageSize) { |
| 1479 | for (nsIFrame* child : mFrames) { |
| 1480 | ReflowOutput childDesiredSize(aReflowInput); |
| 1481 | WritingMode wm = GetWritingMode(); |
| 1482 | // Shouldn't be hard to support if we want, but why bother. |
| 1483 | MOZ_ASSERT(do { static_assert( mozilla::detail::AssertionConditionType< decltype(wm == child->GetWritingMode())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(wm == child->GetWritingMode ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("wm == child->GetWritingMode()" " (" "We don't expect mismatched writing-modes in content we control" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 1485); AnnotateMozCrashReason("MOZ_ASSERT" "(" "wm == child->GetWritingMode()" ") (" "We don't expect mismatched writing-modes in content we control" ")"); do { *((volatile int*)__null) = 1485; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 1484 | wm == child->GetWritingMode(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(wm == child->GetWritingMode())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(wm == child->GetWritingMode ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("wm == child->GetWritingMode()" " (" "We don't expect mismatched writing-modes in content we control" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 1485); AnnotateMozCrashReason("MOZ_ASSERT" "(" "wm == child->GetWritingMode()" ") (" "We don't expect mismatched writing-modes in content we control" ")"); do { *((volatile int*)__null) = 1485; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 1485 | "We don't expect mismatched writing-modes in content we control")do { static_assert( mozilla::detail::AssertionConditionType< decltype(wm == child->GetWritingMode())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(wm == child->GetWritingMode ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("wm == child->GetWritingMode()" " (" "We don't expect mismatched writing-modes in content we control" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 1485); AnnotateMozCrashReason("MOZ_ASSERT" "(" "wm == child->GetWritingMode()" ") (" "We don't expect mismatched writing-modes in content we control" ")"); do { *((volatile int*)__null) = 1485; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1486 | nsReflowStatus childStatus; |
| 1487 | |
| 1488 | LogicalPoint childOffset(wm); |
| 1489 | ReflowInput childReflowInput(aPresContext, aReflowInput, child, aImageSize); |
| 1490 | const nsSize containerSize = aImageSize.GetPhysicalSize(wm); |
| 1491 | ReflowChild(child, aPresContext, childDesiredSize, childReflowInput, wm, |
| 1492 | childOffset, containerSize, ReflowChildFlags::Default, |
| 1493 | childStatus); |
| 1494 | |
| 1495 | FinishReflowChild(child, aPresContext, childDesiredSize, &childReflowInput, |
| 1496 | wm, childOffset, containerSize, |
| 1497 | ReflowChildFlags::Default); |
| 1498 | } |
| 1499 | } |
| 1500 | |
| 1501 | void nsImageFrame::Reflow(nsPresContext* aPresContext, ReflowOutput& aMetrics, |
| 1502 | const ReflowInput& aReflowInput, |
| 1503 | nsReflowStatus& aStatus) { |
| 1504 | MarkInReflow(); |
| 1505 | DO_GLOBAL_REFLOW_COUNT("nsImageFrame")aPresContext->CountReflows(("nsImageFrame"), (nsIFrame*)this );; |
| 1506 | 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/generic/nsImageFrame.cpp" , 1506); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aStatus.IsEmpty()" ") (" "Caller should pass a fresh reflow status!" ")"); do { *((volatile int*)__null) = 1506; __attribute__((nomerge)) :: abort(); } while (false); } } while (false); |
| 1507 | NS_FRAME_TRACE(do { if ((int(((mozilla::LogModule*)(nsIFrame::sFrameLogModule ))->Level()) & (0x1))) { TraceMsg ("enter nsImageFrame::Reflow: availSize=%d,%d" , aReflowInput.AvailableWidth(), aReflowInput.AvailableHeight ()); } } while (0) |
| 1508 | NS_FRAME_TRACE_CALLS,do { if ((int(((mozilla::LogModule*)(nsIFrame::sFrameLogModule ))->Level()) & (0x1))) { TraceMsg ("enter nsImageFrame::Reflow: availSize=%d,%d" , aReflowInput.AvailableWidth(), aReflowInput.AvailableHeight ()); } } while (0) |
| 1509 | ("enter nsImageFrame::Reflow: availSize=%d,%d",do { if ((int(((mozilla::LogModule*)(nsIFrame::sFrameLogModule ))->Level()) & (0x1))) { TraceMsg ("enter nsImageFrame::Reflow: availSize=%d,%d" , aReflowInput.AvailableWidth(), aReflowInput.AvailableHeight ()); } } while (0) |
| 1510 | aReflowInput.AvailableWidth(), aReflowInput.AvailableHeight()))do { if ((int(((mozilla::LogModule*)(nsIFrame::sFrameLogModule ))->Level()) & (0x1))) { TraceMsg ("enter nsImageFrame::Reflow: availSize=%d,%d" , aReflowInput.AvailableWidth(), aReflowInput.AvailableHeight ()); } } while (0); |
| 1511 | |
| 1512 | MOZ_ASSERT(HasAnyStateBits(NS_FRAME_IN_REFLOW), "frame is not 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)" " (" "frame is not in reflow" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 1512); AnnotateMozCrashReason("MOZ_ASSERT" "(" "HasAnyStateBits(NS_FRAME_IN_REFLOW)" ") (" "frame is not in reflow" ")"); do { *((volatile int*)__null ) = 1512; __attribute__((nomerge)) ::abort(); } while (false) ; } } while (false); |
| 1513 | |
| 1514 | // see if we have a frozen size (i.e. a fixed width and height) |
| 1515 | if (!SizeDependsOnIntrinsicSize(aReflowInput)) { |
| 1516 | AddStateBits(IMAGE_SIZECONSTRAINED); |
| 1517 | } else { |
| 1518 | RemoveStateBits(IMAGE_SIZECONSTRAINED); |
| 1519 | } |
| 1520 | |
| 1521 | mComputedSize = aReflowInput.ComputedPhysicalSize(); |
| 1522 | |
| 1523 | const auto wm = GetWritingMode(); |
| 1524 | aMetrics.SetSize(wm, aReflowInput.ComputedSizeWithBorderPadding(wm)); |
| 1525 | |
| 1526 | if (GetPrevInFlow()) { |
| 1527 | aMetrics.Width() = GetPrevInFlow()->GetSize().width; |
| 1528 | nscoord y = GetContinuationOffset(); |
| 1529 | aMetrics.Height() -= y + aReflowInput.ComputedPhysicalBorderPadding().top; |
| 1530 | aMetrics.Height() = std::max(0, aMetrics.Height()); |
| 1531 | } |
| 1532 | |
| 1533 | // we have to split images if we are: |
| 1534 | // in Paginated mode, we need to have a constrained height, and have a height |
| 1535 | // larger than our available height |
| 1536 | uint32_t loadStatus = imgIRequest::STATUS_NONE; |
| 1537 | if (nsCOMPtr<imgIRequest> currentRequest = GetCurrentRequest()) { |
| 1538 | currentRequest->GetImageStatus(&loadStatus); |
| 1539 | } |
| 1540 | |
| 1541 | if (aPresContext->IsPaginated() && |
| 1542 | ((loadStatus & imgIRequest::STATUS_SIZE_AVAILABLE) || |
| 1543 | HasAnyStateBits(IMAGE_SIZECONSTRAINED)) && |
| 1544 | NS_UNCONSTRAINEDSIZE != aReflowInput.AvailableHeight() && |
| 1545 | aMetrics.Height() > aReflowInput.AvailableHeight()) { |
| 1546 | // our desired height was greater than 0, so to avoid infinite |
| 1547 | // splitting, use 1 pixel as the min |
| 1548 | aMetrics.Height() = std::max(nsPresContext::CSSPixelsToAppUnits(1), |
| 1549 | aReflowInput.AvailableHeight()); |
| 1550 | aStatus.SetIncomplete(); |
| 1551 | } |
| 1552 | |
| 1553 | aMetrics.SetOverflowAreasToDesiredBounds(); |
| 1554 | bool imageOK = mKind != Kind::ImageLoadingContent || |
| 1555 | ImageOk(mContent->AsElement()->State()); |
| 1556 | |
| 1557 | // Determine if the size is available |
| 1558 | bool haveSize = false; |
| 1559 | if (loadStatus & imgIRequest::STATUS_SIZE_AVAILABLE) { |
| 1560 | haveSize = true; |
| 1561 | } |
| 1562 | |
| 1563 | if (!imageOK || !haveSize) { |
| 1564 | nsRect altFeedbackSize( |
| 1565 | 0, 0, |
| 1566 | nsPresContext::CSSPixelsToAppUnits( |
| 1567 | ICON_SIZE(16) + 2 * (ICON_PADDING(3) + ALT_BORDER_WIDTH(1))), |
| 1568 | nsPresContext::CSSPixelsToAppUnits( |
| 1569 | ICON_SIZE(16) + 2 * (ICON_PADDING(3) + ALT_BORDER_WIDTH(1)))); |
| 1570 | // We include the altFeedbackSize in our ink overflow, but not in our |
| 1571 | // scrollable overflow, since it doesn't really need to be scrolled to |
| 1572 | // outside the image. |
| 1573 | nsRect& inkOverflow = aMetrics.InkOverflow(); |
| 1574 | inkOverflow.UnionRect(inkOverflow, altFeedbackSize); |
| 1575 | } else if (PresShell()->IsActive()) { |
| 1576 | // We've just reflowed and we should have an accurate size, so we're ready |
| 1577 | // to request a decode. |
| 1578 | MaybeDecodeForPredictedSize(); |
| 1579 | } |
| 1580 | FinishAndStoreOverflow(&aMetrics, aReflowInput.mStyleDisplay); |
| 1581 | |
| 1582 | // Reflow the child frames. Our children can't affect our size in any way. |
| 1583 | ReflowChildren(aPresContext, aReflowInput, aMetrics.Size(GetWritingMode())); |
| 1584 | |
| 1585 | if (HasAnyStateBits(NS_FRAME_FIRST_REFLOW) && !mReflowCallbackPosted) { |
| 1586 | mReflowCallbackPosted = true; |
| 1587 | PresShell()->PostReflowCallback(this); |
| 1588 | } |
| 1589 | |
| 1590 | NS_FRAME_TRACE(NS_FRAME_TRACE_CALLS, ("exit nsImageFrame::Reflow: size=%d,%d",do { if ((int(((mozilla::LogModule*)(nsIFrame::sFrameLogModule ))->Level()) & (0x1))) { TraceMsg ("exit nsImageFrame::Reflow: size=%d,%d" , aMetrics.Width(), aMetrics.Height()); } } while (0) |
| 1591 | aMetrics.Width(), aMetrics.Height()))do { if ((int(((mozilla::LogModule*)(nsIFrame::sFrameLogModule ))->Level()) & (0x1))) { TraceMsg ("exit nsImageFrame::Reflow: size=%d,%d" , aMetrics.Width(), aMetrics.Height()); } } while (0); |
| 1592 | } |
| 1593 | |
| 1594 | bool nsImageFrame::ReflowFinished() { |
| 1595 | mReflowCallbackPosted = false; |
| 1596 | |
| 1597 | // XXX(seth): We don't need this. The purpose of updating visibility |
| 1598 | // synchronously is to ensure that animated images start animating |
| 1599 | // immediately. In the short term, however, |
| 1600 | // nsImageLoadingContent::OnUnlockedDraw() is enough to ensure that |
| 1601 | // animations start as soon as the image is painted for the first time, and in |
| 1602 | // the long term we want to update visibility information from the display |
| 1603 | // list whenever we paint, so we don't actually need to do this. However, to |
| 1604 | // avoid behavior changes during the transition from the old image visibility |
| 1605 | // code, we'll leave it in for now. |
| 1606 | UpdateVisibilitySynchronously(); |
| 1607 | |
| 1608 | return false; |
| 1609 | } |
| 1610 | |
| 1611 | void nsImageFrame::ReflowCallbackCanceled() { mReflowCallbackPosted = false; } |
| 1612 | |
| 1613 | // Computes the width of the specified string. aMaxWidth specifies the maximum |
| 1614 | // width available. Once this limit is reached no more characters are measured. |
| 1615 | // The number of characters that fit within the maximum width are returned in |
| 1616 | // aMaxFit. NOTE: it is assumed that the fontmetrics have already been selected |
| 1617 | // into the rendering context before this is called (for performance). MMP |
| 1618 | nscoord nsImageFrame::MeasureString(const char16_t* aString, int32_t aLength, |
| 1619 | nscoord aMaxWidth, uint32_t& aMaxFit, |
| 1620 | gfxContext& aContext, |
| 1621 | nsFontMetrics& aFontMetrics) { |
| 1622 | nscoord totalWidth = 0; |
| 1623 | aFontMetrics.SetTextRunRTL(false); |
| 1624 | nscoord spaceWidth = aFontMetrics.SpaceWidth(); |
| 1625 | |
| 1626 | aMaxFit = 0; |
| 1627 | while (aLength > 0) { |
| 1628 | // Find the next place we can line break |
| 1629 | uint32_t len = aLength; |
| 1630 | bool trailingSpace = false; |
| 1631 | for (int32_t i = 0; i < aLength; i++) { |
| 1632 | if (dom::IsSpaceCharacter(aString[i]) && (i > 0)) { |
| 1633 | len = i; // don't include the space when measuring |
| 1634 | trailingSpace = true; |
| 1635 | break; |
| 1636 | } |
| 1637 | } |
| 1638 | |
| 1639 | // Measure this chunk of text, and see if it fits |
| 1640 | nscoord width = nsLayoutUtils::AppUnitWidthOfStringBidi( |
| 1641 | aString, len, this, aFontMetrics, aContext); |
| 1642 | bool fits = (totalWidth + width) <= aMaxWidth; |
| 1643 | |
| 1644 | // If it fits on the line, or it's the first word we've processed then |
| 1645 | // include it |
| 1646 | if (fits || (0 == totalWidth)) { |
| 1647 | // New piece fits |
| 1648 | totalWidth += width; |
| 1649 | |
| 1650 | // If there's a trailing space then see if it fits as well |
| 1651 | if (trailingSpace) { |
| 1652 | if ((totalWidth + spaceWidth) <= aMaxWidth) { |
| 1653 | totalWidth += spaceWidth; |
| 1654 | } else { |
| 1655 | // Space won't fit. Leave it at the end but don't include it in |
| 1656 | // the width |
| 1657 | fits = false; |
| 1658 | } |
| 1659 | |
| 1660 | len++; |
| 1661 | } |
| 1662 | |
| 1663 | aMaxFit += len; |
| 1664 | aString += len; |
| 1665 | aLength -= len; |
| 1666 | } |
| 1667 | |
| 1668 | if (!fits) { |
| 1669 | break; |
| 1670 | } |
| 1671 | } |
| 1672 | return totalWidth; |
| 1673 | } |
| 1674 | |
| 1675 | // Formats the alt-text to fit within the specified rectangle. Breaks lines |
| 1676 | // between words if a word would extend past the edge of the rectangle |
| 1677 | void nsImageFrame::DisplayAltText(nsPresContext* aPresContext, |
| 1678 | gfxContext& aRenderingContext, |
| 1679 | const nsString& aAltText, |
| 1680 | const nsRect& aRect) { |
| 1681 | // Set font and color |
| 1682 | aRenderingContext.SetColor( |
| 1683 | sRGBColor::FromABGR(StyleText()->mColor.ToColor())); |
| 1684 | RefPtr<nsFontMetrics> fm = |
| 1685 | nsLayoutUtils::GetInflatedFontMetricsForFrame(this); |
| 1686 | |
| 1687 | // Format the text to display within the formatting rect |
| 1688 | |
| 1689 | nscoord maxAscent = fm->MaxAscent(); |
| 1690 | nscoord maxDescent = fm->MaxDescent(); |
| 1691 | nscoord lineHeight = fm->MaxHeight(); // line-relative, so an x-coordinate |
| 1692 | // length if writing mode is vertical |
| 1693 | |
| 1694 | WritingMode wm = GetWritingMode(); |
| 1695 | bool isVertical = wm.IsVertical(); |
| 1696 | |
| 1697 | fm->SetVertical(isVertical); |
| 1698 | fm->SetTextOrientation(StyleVisibility()->mTextOrientation); |
| 1699 | |
| 1700 | // XXX It would be nice if there was a way to have the font metrics tell |
| 1701 | // use where to break the text given a maximum width. At a minimum we need |
| 1702 | // to be able to get the break character... |
| 1703 | const char16_t* str = aAltText.get(); |
| 1704 | int32_t strLen = aAltText.Length(); |
| 1705 | nsPoint pt = wm.IsVerticalRL() ? aRect.TopRight() - nsPoint(lineHeight, 0) |
| 1706 | : aRect.TopLeft(); |
| 1707 | nscoord iSize = isVertical ? aRect.height : aRect.width; |
| 1708 | |
| 1709 | if (!aPresContext->BidiEnabled() && HasRTLChars(aAltText)) { |
| 1710 | aPresContext->SetBidiEnabled(); |
| 1711 | } |
| 1712 | |
| 1713 | // Always show the first line, even if we have to clip it below |
| 1714 | bool firstLine = true; |
| 1715 | while (strLen > 0) { |
| 1716 | if (!firstLine) { |
| 1717 | // If we've run out of space, break out of the loop |
| 1718 | if ((!isVertical && (pt.y + maxDescent) >= aRect.YMost()) || |
| 1719 | (wm.IsVerticalRL() && (pt.x + maxDescent < aRect.x)) || |
| 1720 | (wm.IsVerticalLR() && (pt.x + maxDescent >= aRect.XMost()))) { |
| 1721 | break; |
| 1722 | } |
| 1723 | } |
| 1724 | |
| 1725 | // Determine how much of the text to display on this line |
| 1726 | uint32_t maxFit; // number of characters that fit |
| 1727 | nscoord strWidth = |
| 1728 | MeasureString(str, strLen, iSize, maxFit, aRenderingContext, *fm); |
| 1729 | |
| 1730 | // Display the text |
| 1731 | nsresult rv = NS_ERROR_FAILURE; |
| 1732 | |
| 1733 | if (aPresContext->BidiEnabled()) { |
| 1734 | mozilla::intl::BidiEmbeddingLevel level; |
| 1735 | nscoord x, y; |
| 1736 | |
| 1737 | if (isVertical) { |
| 1738 | x = pt.x + maxDescent; |
| 1739 | if (wm.IsBidiLTR()) { |
| 1740 | y = aRect.y; |
| 1741 | level = mozilla::intl::BidiEmbeddingLevel::LTR(); |
| 1742 | } else { |
| 1743 | y = aRect.YMost() - strWidth; |
| 1744 | level = mozilla::intl::BidiEmbeddingLevel::RTL(); |
| 1745 | } |
| 1746 | } else { |
| 1747 | y = pt.y + maxAscent; |
| 1748 | if (wm.IsBidiLTR()) { |
| 1749 | x = aRect.x; |
| 1750 | level = mozilla::intl::BidiEmbeddingLevel::LTR(); |
| 1751 | } else { |
| 1752 | x = aRect.XMost() - strWidth; |
| 1753 | level = mozilla::intl::BidiEmbeddingLevel::RTL(); |
| 1754 | } |
| 1755 | } |
| 1756 | |
| 1757 | rv = nsBidiPresUtils::RenderText( |
| 1758 | str, maxFit, level, aPresContext, aRenderingContext, |
| 1759 | aRenderingContext.GetDrawTarget(), *fm, x, y); |
| 1760 | } |
| 1761 | if (NS_FAILED(rv)((bool)(__builtin_expect(!!(NS_FAILED_impl(rv)), 0)))) { |
| 1762 | nsLayoutUtils::DrawUniDirString(str, maxFit, |
| 1763 | isVertical |
| 1764 | ? nsPoint(pt.x + maxDescent, pt.y) |
| 1765 | : nsPoint(pt.x, pt.y + maxAscent), |
| 1766 | *fm, aRenderingContext); |
| 1767 | } |
| 1768 | |
| 1769 | // Move to the next line |
| 1770 | str += maxFit; |
| 1771 | strLen -= maxFit; |
| 1772 | if (wm.IsVerticalRL()) { |
| 1773 | pt.x -= lineHeight; |
| 1774 | } else if (wm.IsVerticalLR()) { |
| 1775 | pt.x += lineHeight; |
| 1776 | } else { |
| 1777 | pt.y += lineHeight; |
| 1778 | } |
| 1779 | |
| 1780 | firstLine = false; |
| 1781 | } |
| 1782 | } |
| 1783 | |
| 1784 | struct nsRecessedBorder : public nsStyleBorder { |
| 1785 | explicit nsRecessedBorder(nscoord aBorderWidth) { |
| 1786 | for (const auto side : AllPhysicalSides()) { |
| 1787 | BorderColorFor(side) = StyleColor::Black(); |
| 1788 | mBorder.Side(side) = aBorderWidth; |
| 1789 | // Note: use SetBorderStyle here because we want to affect |
| 1790 | // mComputedBorder |
| 1791 | SetBorderStyle(side, StyleBorderStyle::Inset); |
| 1792 | } |
| 1793 | } |
| 1794 | }; |
| 1795 | |
| 1796 | class nsDisplayAltFeedback final : public nsPaintedDisplayItem { |
| 1797 | public: |
| 1798 | nsDisplayAltFeedback(nsDisplayListBuilder* aBuilder, nsIFrame* aFrame) |
| 1799 | : nsPaintedDisplayItem(aBuilder, aFrame) {} |
| 1800 | |
| 1801 | nsRect GetBounds(nsDisplayListBuilder* aBuilder, bool* aSnap) const final { |
| 1802 | *aSnap = false; |
| 1803 | return mFrame->InkOverflowRectRelativeToSelf() + ToReferenceFrame(); |
| 1804 | } |
| 1805 | |
| 1806 | void Paint(nsDisplayListBuilder* aBuilder, gfxContext* aCtx) final { |
| 1807 | // Always sync decode, because these icons are UI, and since they're not |
| 1808 | // discardable we'll pay the price of sync decoding at most once. |
| 1809 | uint32_t flags = imgIContainer::FLAG_SYNC_DECODE; |
| 1810 | |
| 1811 | nsImageFrame* f = static_cast<nsImageFrame*>(mFrame); |
| 1812 | Unused << f->DisplayAltFeedback(*aCtx, GetPaintRect(aBuilder, aCtx), |
| 1813 | ToReferenceFrame(), flags); |
| 1814 | } |
| 1815 | |
| 1816 | bool CreateWebRenderCommands( |
| 1817 | mozilla::wr::DisplayListBuilder& aBuilder, |
| 1818 | mozilla::wr::IpcResourceUpdateQueue& aResources, |
| 1819 | const StackingContextHelper& aSc, |
| 1820 | mozilla::layers::RenderRootStateManager* aManager, |
| 1821 | nsDisplayListBuilder* aDisplayListBuilder) final { |
| 1822 | // Always sync decode, because these icons are UI, and since they're not |
| 1823 | // discardable we'll pay the price of sync decoding at most once. |
| 1824 | uint32_t flags = |
| 1825 | imgIContainer::FLAG_SYNC_DECODE | imgIContainer::FLAG_ASYNC_NOTIFY; |
| 1826 | nsImageFrame* f = static_cast<nsImageFrame*>(mFrame); |
| 1827 | ImgDrawResult result = f->DisplayAltFeedbackWithoutLayer( |
| 1828 | this, aBuilder, aResources, aSc, aManager, aDisplayListBuilder, |
| 1829 | ToReferenceFrame(), flags); |
| 1830 | |
| 1831 | return result == ImgDrawResult::SUCCESS; |
| 1832 | } |
| 1833 | |
| 1834 | NS_DISPLAY_DECL_NAME("AltFeedback", TYPE_ALT_FEEDBACK)const char* Name() const override { return "AltFeedback"; } constexpr static DisplayItemType ItemType() { return DisplayItemType:: TYPE_ALT_FEEDBACK; } private: void* operator new(size_t aSize , nsDisplayListBuilder* aBuilder) { return aBuilder->Allocate (aSize, DisplayItemType::TYPE_ALT_FEEDBACK); } template <typename T, typename F, typename... Args> friend T* mozilla::MakeDisplayItemWithIndex ( nsDisplayListBuilder* aBuilder, F* aFrame, const uint16_t aIndex , Args&&... aArgs); public: |
| 1835 | }; |
| 1836 | |
| 1837 | ImgDrawResult nsImageFrame::DisplayAltFeedback(gfxContext& aRenderingContext, |
| 1838 | const nsRect& aDirtyRect, |
| 1839 | nsPoint aPt, uint32_t aFlags) { |
| 1840 | // Whether we draw the broken or loading icon. |
| 1841 | bool isLoading = mKind != Kind::ImageLoadingContent || |
| 1842 | ImageOk(mContent->AsElement()->State()); |
| 1843 | |
| 1844 | // Calculate the content area. |
| 1845 | nsRect inner = GetContentRectRelativeToSelf() + aPt; |
| 1846 | |
| 1847 | // Display a recessed one pixel border |
| 1848 | nscoord borderEdgeWidth = |
| 1849 | nsPresContext::CSSPixelsToAppUnits(ALT_BORDER_WIDTH(1)); |
| 1850 | |
| 1851 | // if inner area is empty, then make it big enough for at least the icon |
| 1852 | if (inner.IsEmpty()) { |
| 1853 | inner.SizeTo(2 * (nsPresContext::CSSPixelsToAppUnits( |
| 1854 | ICON_SIZE(16) + ICON_PADDING(3) + ALT_BORDER_WIDTH(1))), |
| 1855 | 2 * (nsPresContext::CSSPixelsToAppUnits( |
| 1856 | ICON_SIZE(16) + ICON_PADDING(3) + ALT_BORDER_WIDTH(1)))); |
| 1857 | } |
| 1858 | |
| 1859 | // Make sure we have enough room to actually render the border within |
| 1860 | // our frame bounds |
| 1861 | if ((inner.width < 2 * borderEdgeWidth) || |
| 1862 | (inner.height < 2 * borderEdgeWidth)) { |
| 1863 | return ImgDrawResult::SUCCESS; |
| 1864 | } |
| 1865 | |
| 1866 | // Paint the border |
| 1867 | if (!isLoading) { |
| 1868 | nsRecessedBorder recessedBorder(borderEdgeWidth); |
| 1869 | |
| 1870 | // Assert that we're not drawing a border-image here; if we were, we |
| 1871 | // couldn't ignore the ImgDrawResult that PaintBorderWithStyleBorder |
| 1872 | // returns. |
| 1873 | MOZ_ASSERT(recessedBorder.mBorderImageSource.IsNone())do { static_assert( mozilla::detail::AssertionConditionType< decltype(recessedBorder.mBorderImageSource.IsNone())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(recessedBorder.mBorderImageSource.IsNone()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("recessedBorder.mBorderImageSource.IsNone()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 1873); AnnotateMozCrashReason("MOZ_ASSERT" "(" "recessedBorder.mBorderImageSource.IsNone()" ")"); do { *((volatile int*)__null) = 1873; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1874 | |
| 1875 | Unused << nsCSSRendering::PaintBorderWithStyleBorder( |
| 1876 | PresContext(), aRenderingContext, this, inner, inner, recessedBorder, |
| 1877 | mComputedStyle, PaintBorderFlags::SyncDecodeImages); |
| 1878 | } |
| 1879 | |
| 1880 | // Adjust the inner rect to account for the one pixel recessed border, |
| 1881 | // and a six pixel padding on each edge |
| 1882 | inner.Deflate( |
| 1883 | nsPresContext::CSSPixelsToAppUnits(ICON_PADDING(3) + ALT_BORDER_WIDTH(1)), |
| 1884 | nsPresContext::CSSPixelsToAppUnits(ICON_PADDING(3) + ALT_BORDER_WIDTH(1))); |
| 1885 | if (inner.IsEmpty()) { |
| 1886 | return ImgDrawResult::SUCCESS; |
| 1887 | } |
| 1888 | |
| 1889 | DrawTarget* drawTarget = aRenderingContext.GetDrawTarget(); |
| 1890 | |
| 1891 | // Clip so we don't render outside the inner rect |
| 1892 | aRenderingContext.Save(); |
| 1893 | aRenderingContext.Clip(NSRectToSnappedRect( |
| 1894 | inner, PresContext()->AppUnitsPerDevPixel(), *drawTarget)); |
| 1895 | |
| 1896 | ImgDrawResult result = ImgDrawResult::SUCCESS; |
| 1897 | |
| 1898 | // Check if we should display image placeholders |
| 1899 | if (ShouldShowBrokenImageIcon()) { |
| 1900 | result = ImgDrawResult::NOT_READY; |
| 1901 | nscoord size = nsPresContext::CSSPixelsToAppUnits(ICON_SIZE(16)); |
| 1902 | imgIRequest* request = BrokenImageIcon::GetImage(this); |
| 1903 | |
| 1904 | // If we weren't previously displaying an icon, register ourselves |
| 1905 | // as an observer for load and animation updates and flag that we're |
| 1906 | // doing so now. |
| 1907 | if (request && !mDisplayingIcon) { |
| 1908 | BrokenImageIcon::AddObserver(this); |
| 1909 | mDisplayingIcon = true; |
| 1910 | } |
| 1911 | |
| 1912 | WritingMode wm = GetWritingMode(); |
| 1913 | bool flushRight = wm.IsPhysicalRTL(); |
| 1914 | |
| 1915 | // If the icon in question is loaded, draw it. |
| 1916 | uint32_t imageStatus = 0; |
| 1917 | if (request) request->GetImageStatus(&imageStatus); |
| 1918 | if (imageStatus & imgIRequest::STATUS_LOAD_COMPLETE && |
| 1919 | !(imageStatus & imgIRequest::STATUS_ERROR)) { |
| 1920 | nsCOMPtr<imgIContainer> imgCon; |
| 1921 | request->GetImage(getter_AddRefs(imgCon)); |
| 1922 | MOZ_ASSERT(imgCon, "Load complete, but no image container?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(imgCon)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(imgCon))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("imgCon" " (" "Load complete, but no image container?" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 1922); AnnotateMozCrashReason("MOZ_ASSERT" "(" "imgCon" ") (" "Load complete, but no image container?" ")"); do { *((volatile int*)__null) = 1922; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 1923 | nsRect dest(flushRight ? inner.XMost() - size : inner.x, inner.y, size, |
| 1924 | size); |
| 1925 | result = nsLayoutUtils::DrawSingleImage( |
| 1926 | aRenderingContext, PresContext(), imgCon, |
| 1927 | nsLayoutUtils::GetSamplingFilterForFrame(this), dest, aDirtyRect, |
| 1928 | SVGImageContext(), aFlags); |
| 1929 | } |
| 1930 | |
| 1931 | // If we could not draw the icon, just draw some graffiti in the mean time. |
| 1932 | if (result == ImgDrawResult::NOT_READY) { |
| 1933 | ColorPattern color(ToDeviceColor(sRGBColor(1.f, 0.f, 0.f, 1.f))); |
| 1934 | |
| 1935 | nscoord iconXPos = flushRight ? inner.XMost() - size : inner.x; |
| 1936 | |
| 1937 | // stroked rect: |
| 1938 | nsRect rect(iconXPos, inner.y, size, size); |
| 1939 | Rect devPxRect = ToRect(nsLayoutUtils::RectToGfxRect( |
| 1940 | rect, PresContext()->AppUnitsPerDevPixel())); |
| 1941 | drawTarget->StrokeRect(devPxRect, color); |
| 1942 | |
| 1943 | // filled circle in bottom right quadrant of stroked rect: |
| 1944 | nscoord twoPX = nsPresContext::CSSPixelsToAppUnits(2); |
| 1945 | rect = nsRect(iconXPos + size / 2, inner.y + size / 2, size / 2 - twoPX, |
| 1946 | size / 2 - twoPX); |
| 1947 | devPxRect = ToRect(nsLayoutUtils::RectToGfxRect( |
| 1948 | rect, PresContext()->AppUnitsPerDevPixel())); |
| 1949 | RefPtr<PathBuilder> builder = drawTarget->CreatePathBuilder(); |
| 1950 | AppendEllipseToPath(builder, devPxRect.Center(), devPxRect.Size()); |
| 1951 | RefPtr<Path> ellipse = builder->Finish(); |
| 1952 | drawTarget->Fill(ellipse, color); |
| 1953 | } |
| 1954 | |
| 1955 | // Reduce the inner rect by the width of the icon, and leave an |
| 1956 | // additional ICON_PADDING pixels for padding |
| 1957 | int32_t paddedIconSize = |
| 1958 | nsPresContext::CSSPixelsToAppUnits(ICON_SIZE(16) + ICON_PADDING(3)); |
| 1959 | if (wm.IsVertical()) { |
| 1960 | inner.y += paddedIconSize; |
| 1961 | inner.height -= paddedIconSize; |
| 1962 | } else { |
| 1963 | if (!flushRight) { |
| 1964 | inner.x += paddedIconSize; |
| 1965 | } |
| 1966 | inner.width -= paddedIconSize; |
| 1967 | } |
| 1968 | } |
| 1969 | |
| 1970 | // If there's still room, display the alt-text |
| 1971 | if (!inner.IsEmpty()) { |
| 1972 | nsAutoString altText; |
| 1973 | nsCSSFrameConstructor::GetAlternateTextFor(*mContent->AsElement(), altText); |
| 1974 | DisplayAltText(PresContext(), aRenderingContext, altText, inner); |
| 1975 | } |
| 1976 | |
| 1977 | aRenderingContext.Restore(); |
| 1978 | |
| 1979 | return result; |
| 1980 | } |
| 1981 | |
| 1982 | ImgDrawResult nsImageFrame::DisplayAltFeedbackWithoutLayer( |
| 1983 | nsDisplayItem* aItem, mozilla::wr::DisplayListBuilder& aBuilder, |
| 1984 | mozilla::wr::IpcResourceUpdateQueue& aResources, |
| 1985 | const StackingContextHelper& aSc, |
| 1986 | mozilla::layers::RenderRootStateManager* aManager, |
| 1987 | nsDisplayListBuilder* aDisplayListBuilder, nsPoint aPt, uint32_t aFlags) { |
| 1988 | // Whether we draw the broken or loading icon. |
| 1989 | bool isLoading = mKind != Kind::ImageLoadingContent || |
| 1990 | ImageOk(mContent->AsElement()->State()); |
| 1991 | |
| 1992 | // Calculate the content area. |
| 1993 | nsRect inner = GetContentRectRelativeToSelf() + aPt; |
| 1994 | |
| 1995 | // Display a recessed one pixel border |
| 1996 | nscoord borderEdgeWidth = |
| 1997 | nsPresContext::CSSPixelsToAppUnits(ALT_BORDER_WIDTH(1)); |
| 1998 | |
| 1999 | // if inner area is empty, then make it big enough for at least the icon |
| 2000 | if (inner.IsEmpty()) { |
| 2001 | inner.SizeTo(2 * (nsPresContext::CSSPixelsToAppUnits( |
| 2002 | ICON_SIZE(16) + ICON_PADDING(3) + ALT_BORDER_WIDTH(1))), |
| 2003 | 2 * (nsPresContext::CSSPixelsToAppUnits( |
| 2004 | ICON_SIZE(16) + ICON_PADDING(3) + ALT_BORDER_WIDTH(1)))); |
| 2005 | } |
| 2006 | |
| 2007 | // Make sure we have enough room to actually render the border within |
| 2008 | // our frame bounds |
| 2009 | if ((inner.width < 2 * borderEdgeWidth) || |
| 2010 | (inner.height < 2 * borderEdgeWidth)) { |
| 2011 | return ImgDrawResult::SUCCESS; |
| 2012 | } |
| 2013 | |
| 2014 | // If the TextDrawTarget requires fallback we need to rollback everything we |
| 2015 | // may have added to the display list, but we don't find that out until the |
| 2016 | // end. |
| 2017 | bool textDrawResult = true; |
| 2018 | class AutoSaveRestore { |
| 2019 | public: |
| 2020 | explicit AutoSaveRestore(mozilla::wr::DisplayListBuilder& aBuilder, |
| 2021 | bool& aTextDrawResult) |
| 2022 | : mBuilder(aBuilder), mTextDrawResult(aTextDrawResult) { |
| 2023 | mBuilder.Save(); |
| 2024 | } |
| 2025 | ~AutoSaveRestore() { |
| 2026 | // If we have to use fallback for the text restore the builder and remove |
| 2027 | // anything else we added to the display list, we need to use fallback. |
| 2028 | if (mTextDrawResult) { |
| 2029 | mBuilder.ClearSave(); |
| 2030 | } else { |
| 2031 | mBuilder.Restore(); |
| 2032 | } |
| 2033 | } |
| 2034 | |
| 2035 | private: |
| 2036 | mozilla::wr::DisplayListBuilder& mBuilder; |
| 2037 | bool& mTextDrawResult; |
| 2038 | }; |
| 2039 | |
| 2040 | AutoSaveRestore autoSaveRestore(aBuilder, textDrawResult); |
| 2041 | |
| 2042 | // Paint the border |
| 2043 | if (!isLoading) { |
| 2044 | nsRecessedBorder recessedBorder(borderEdgeWidth); |
| 2045 | // Assert that we're not drawing a border-image here; if we were, we |
| 2046 | // couldn't ignore the ImgDrawResult that PaintBorderWithStyleBorder |
| 2047 | // returns. |
| 2048 | MOZ_ASSERT(recessedBorder.mBorderImageSource.IsNone())do { static_assert( mozilla::detail::AssertionConditionType< decltype(recessedBorder.mBorderImageSource.IsNone())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(recessedBorder.mBorderImageSource.IsNone()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("recessedBorder.mBorderImageSource.IsNone()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 2048); AnnotateMozCrashReason("MOZ_ASSERT" "(" "recessedBorder.mBorderImageSource.IsNone()" ")"); do { *((volatile int*)__null) = 2048; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2049 | |
| 2050 | nsRect rect = nsRect(aPt, GetSize()); |
| 2051 | Unused << nsCSSRendering::CreateWebRenderCommandsForBorderWithStyleBorder( |
| 2052 | aItem, this, rect, aBuilder, aResources, aSc, aManager, |
| 2053 | aDisplayListBuilder, recessedBorder); |
| 2054 | } |
| 2055 | |
| 2056 | // Adjust the inner rect to account for the one pixel recessed border, |
| 2057 | // and a six pixel padding on each edge |
| 2058 | inner.Deflate( |
| 2059 | nsPresContext::CSSPixelsToAppUnits(ICON_PADDING(3) + ALT_BORDER_WIDTH(1)), |
| 2060 | nsPresContext::CSSPixelsToAppUnits(ICON_PADDING(3) + ALT_BORDER_WIDTH(1))); |
| 2061 | if (inner.IsEmpty()) { |
| 2062 | return ImgDrawResult::SUCCESS; |
| 2063 | } |
| 2064 | |
| 2065 | // Clip to this rect so we don't render outside the inner rect |
| 2066 | const auto bounds = LayoutDeviceRect::FromAppUnits( |
| 2067 | inner, PresContext()->AppUnitsPerDevPixel()); |
| 2068 | auto wrBounds = wr::ToLayoutRect(bounds); |
| 2069 | |
| 2070 | // Check if we should display image placeholders |
| 2071 | if (ShouldShowBrokenImageIcon()) { |
| 2072 | ImgDrawResult result = ImgDrawResult::NOT_READY; |
| 2073 | nscoord size = nsPresContext::CSSPixelsToAppUnits(ICON_SIZE(16)); |
| 2074 | imgIRequest* request = BrokenImageIcon::GetImage(this); |
| 2075 | |
| 2076 | // If we weren't previously displaying an icon, register ourselves |
| 2077 | // as an observer for load and animation updates and flag that we're |
| 2078 | // doing so now. |
| 2079 | if (request && !mDisplayingIcon) { |
| 2080 | BrokenImageIcon::AddObserver(this); |
| 2081 | mDisplayingIcon = true; |
| 2082 | } |
| 2083 | |
| 2084 | WritingMode wm = GetWritingMode(); |
| 2085 | const bool flushRight = wm.IsPhysicalRTL(); |
| 2086 | |
| 2087 | // If the icon in question is loaded, draw it. |
| 2088 | uint32_t imageStatus = 0; |
| 2089 | if (request) request->GetImageStatus(&imageStatus); |
| 2090 | if (imageStatus & imgIRequest::STATUS_LOAD_COMPLETE && |
| 2091 | !(imageStatus & imgIRequest::STATUS_ERROR)) { |
| 2092 | nsCOMPtr<imgIContainer> imgCon; |
| 2093 | request->GetImage(getter_AddRefs(imgCon)); |
| 2094 | MOZ_ASSERT(imgCon, "Load complete, but no image container?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(imgCon)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(imgCon))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("imgCon" " (" "Load complete, but no image container?" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 2094); AnnotateMozCrashReason("MOZ_ASSERT" "(" "imgCon" ") (" "Load complete, but no image container?" ")"); do { *((volatile int*)__null) = 2094; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 2095 | |
| 2096 | nsRect dest(flushRight ? inner.XMost() - size : inner.x, inner.y, size, |
| 2097 | size); |
| 2098 | |
| 2099 | const int32_t factor = PresContext()->AppUnitsPerDevPixel(); |
| 2100 | const auto destRect = LayoutDeviceRect::FromAppUnits(dest, factor); |
| 2101 | |
| 2102 | SVGImageContext svgContext; |
| 2103 | Maybe<ImageIntRegion> region; |
| 2104 | IntSize decodeSize = |
| 2105 | nsLayoutUtils::ComputeImageContainerDrawingParameters( |
| 2106 | imgCon, this, destRect, destRect, aSc, aFlags, svgContext, |
| 2107 | region); |
| 2108 | RefPtr<image::WebRenderImageProvider> provider; |
| 2109 | result = imgCon->GetImageProvider(aManager->LayerManager(), decodeSize, |
| 2110 | svgContext, region, aFlags, |
| 2111 | getter_AddRefs(provider)); |
| 2112 | if (provider) { |
| 2113 | bool wrResult = aManager->CommandBuilder().PushImageProvider( |
| 2114 | aItem, provider, result, aBuilder, aResources, destRect, bounds); |
| 2115 | result &= wrResult ? ImgDrawResult::SUCCESS : ImgDrawResult::NOT_READY; |
| 2116 | } else { |
| 2117 | // We don't use &= here because we want the result to be NOT_READY so |
| 2118 | // the next block executes. |
| 2119 | result = ImgDrawResult::NOT_READY; |
| 2120 | } |
| 2121 | } |
| 2122 | |
| 2123 | // If we could not draw the icon, just draw some graffiti in the mean time. |
| 2124 | if (result == ImgDrawResult::NOT_READY) { |
| 2125 | auto color = wr::ColorF{1.0f, 0.0f, 0.0f, 1.0f}; |
| 2126 | bool isBackfaceVisible = !aItem->BackfaceIsHidden(); |
| 2127 | |
| 2128 | nscoord iconXPos = flushRight ? inner.XMost() - size : inner.x; |
| 2129 | |
| 2130 | // stroked rect: |
| 2131 | nsRect rect(iconXPos, inner.y, size, size); |
| 2132 | auto devPxRect = LayoutDeviceRect::FromAppUnits( |
| 2133 | rect, PresContext()->AppUnitsPerDevPixel()); |
| 2134 | auto dest = wr::ToLayoutRect(devPxRect); |
| 2135 | |
| 2136 | auto borderWidths = wr::ToBorderWidths(1.0, 1.0, 1.0, 1.0); |
| 2137 | wr::BorderSide side = {color, wr::BorderStyle::Solid}; |
| 2138 | wr::BorderSide sides[4] = {side, side, side, side}; |
| 2139 | Range<const wr::BorderSide> sidesRange(sides, 4); |
| 2140 | aBuilder.PushBorder(dest, wrBounds, isBackfaceVisible, borderWidths, |
| 2141 | sidesRange, wr::EmptyBorderRadius()); |
| 2142 | |
| 2143 | // filled circle in bottom right quadrant of stroked rect: |
| 2144 | nscoord twoPX = nsPresContext::CSSPixelsToAppUnits(2); |
| 2145 | rect = nsRect(iconXPos + size / 2, inner.y + size / 2, size / 2 - twoPX, |
| 2146 | size / 2 - twoPX); |
| 2147 | devPxRect = LayoutDeviceRect::FromAppUnits( |
| 2148 | rect, PresContext()->AppUnitsPerDevPixel()); |
| 2149 | dest = wr::ToLayoutRect(devPxRect); |
| 2150 | |
| 2151 | aBuilder.PushRoundedRect(dest, wrBounds, isBackfaceVisible, color); |
| 2152 | } |
| 2153 | |
| 2154 | // Reduce the inner rect by the width of the icon, and leave an |
| 2155 | // additional ICON_PADDING pixels for padding |
| 2156 | int32_t paddedIconSize = |
| 2157 | nsPresContext::CSSPixelsToAppUnits(ICON_SIZE(16) + ICON_PADDING(3)); |
| 2158 | if (wm.IsVertical()) { |
| 2159 | inner.y += paddedIconSize; |
| 2160 | inner.height -= paddedIconSize; |
| 2161 | } else { |
| 2162 | if (!flushRight) { |
| 2163 | inner.x += paddedIconSize; |
| 2164 | } |
| 2165 | inner.width -= paddedIconSize; |
| 2166 | } |
| 2167 | } |
| 2168 | |
| 2169 | // Draw text |
| 2170 | if (!inner.IsEmpty()) { |
| 2171 | RefPtr<TextDrawTarget> textDrawer = |
| 2172 | new TextDrawTarget(aBuilder, aResources, aSc, aManager, aItem, inner, |
| 2173 | /* aCallerDoesSaveRestore = */ true); |
| 2174 | MOZ_ASSERT(textDrawer->IsValid())do { static_assert( mozilla::detail::AssertionConditionType< decltype(textDrawer->IsValid())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(textDrawer->IsValid()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("textDrawer->IsValid()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 2174); AnnotateMozCrashReason("MOZ_ASSERT" "(" "textDrawer->IsValid()" ")"); do { *((volatile int*)__null) = 2174; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2175 | if (textDrawer->IsValid()) { |
| 2176 | gfxContext captureCtx(textDrawer); |
| 2177 | |
| 2178 | nsAutoString altText; |
| 2179 | nsCSSFrameConstructor::GetAlternateTextFor(*mContent->AsElement(), |
| 2180 | altText); |
| 2181 | DisplayAltText(PresContext(), captureCtx, altText, inner); |
| 2182 | |
| 2183 | textDrawer->TerminateShadows(); |
| 2184 | textDrawResult = !textDrawer->CheckHasUnsupportedFeatures(); |
| 2185 | } |
| 2186 | } |
| 2187 | |
| 2188 | // Purposely ignore local DrawResult because we handled it not being success |
| 2189 | // already. |
| 2190 | return textDrawResult ? ImgDrawResult::SUCCESS : ImgDrawResult::NOT_READY; |
| 2191 | } |
| 2192 | |
| 2193 | // We want to sync-decode in this case, as otherwise we either need to flash |
| 2194 | // white while waiting to decode the new image, or paint the old image with a |
| 2195 | // different aspect-ratio, which would be bad as it'd be stretched. |
| 2196 | // |
| 2197 | // See bug 1589955. |
| 2198 | static bool OldImageHasDifferentRatio(const nsImageFrame& aFrame, |
| 2199 | imgIContainer& aImage, |
| 2200 | imgIContainer* aPrevImage) { |
| 2201 | if (!aPrevImage || aPrevImage == &aImage) { |
| 2202 | return false; |
| 2203 | } |
| 2204 | |
| 2205 | // If we don't depend on our intrinsic image size / ratio, we're good. |
| 2206 | // |
| 2207 | // FIXME(emilio): There's the case of the old image being painted |
| 2208 | // intrinsically, and src and styles changing at the same time... Maybe we |
| 2209 | // should keep track of the old GetPaintRect()'s ratio and the image's ratio, |
| 2210 | // instead of checking this bit? |
| 2211 | if (aFrame.HasAnyStateBits(IMAGE_SIZECONSTRAINED)) { |
| 2212 | return false; |
| 2213 | } |
| 2214 | |
| 2215 | auto currentRatio = aFrame.GetIntrinsicRatio(); |
| 2216 | auto oldRatio = aFrame.ComputeIntrinsicRatioForImage(aPrevImage); |
| 2217 | return oldRatio != currentRatio; |
| 2218 | } |
| 2219 | |
| 2220 | #ifdef DEBUG1 |
| 2221 | void nsImageFrame::AssertSyncDecodingHintIsInSync() const { |
| 2222 | if (!IsForImageLoadingContent()) { |
| 2223 | return; |
| 2224 | } |
| 2225 | nsCOMPtr<nsIImageLoadingContent> imageLoader = do_QueryInterface(mContent); |
| 2226 | MOZ_ASSERT(imageLoader)do { static_assert( mozilla::detail::AssertionConditionType< decltype(imageLoader)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(imageLoader))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("imageLoader", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 2226); AnnotateMozCrashReason("MOZ_ASSERT" "(" "imageLoader" ")"); do { *((volatile int*)__null) = 2226; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2227 | |
| 2228 | // The opposite is not true, we might have some other heuristics which force |
| 2229 | // sync-decoding of images. |
| 2230 | MOZ_ASSERT_IF(imageLoader->GetSyncDecodingHint(), mForceSyncDecoding)do { if (imageLoader->GetSyncDecodingHint()) { do { static_assert ( mozilla::detail::AssertionConditionType<decltype(mForceSyncDecoding )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(mForceSyncDecoding))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("mForceSyncDecoding", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 2230); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mForceSyncDecoding" ")"); do { *((volatile int*)__null) = 2230; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); |
| 2231 | } |
| 2232 | #endif |
| 2233 | |
| 2234 | void nsDisplayImage::Paint(nsDisplayListBuilder* aBuilder, gfxContext* aCtx) { |
| 2235 | MOZ_ASSERT(mImage)do { static_assert( mozilla::detail::AssertionConditionType< decltype(mImage)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(mImage))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("mImage", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 2235); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mImage" ")" ); do { *((volatile int*)__null) = 2235; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2236 | auto* frame = static_cast<nsImageFrame*>(mFrame); |
| 2237 | frame->AssertSyncDecodingHintIsInSync(); |
| 2238 | |
| 2239 | const bool oldImageIsDifferent = |
| 2240 | OldImageHasDifferentRatio(*frame, *mImage, mPrevImage); |
| 2241 | |
| 2242 | uint32_t flags = aBuilder->GetImageDecodeFlags(); |
| 2243 | if (aBuilder->ShouldSyncDecodeImages() || oldImageIsDifferent || |
| 2244 | frame->mForceSyncDecoding) { |
| 2245 | flags |= imgIContainer::FLAG_SYNC_DECODE; |
| 2246 | } |
| 2247 | |
| 2248 | ImgDrawResult result = frame->PaintImage( |
| 2249 | *aCtx, ToReferenceFrame(), GetPaintRect(aBuilder, aCtx), mImage, flags); |
| 2250 | |
| 2251 | if (result == ImgDrawResult::NOT_READY || |
| 2252 | result == ImgDrawResult::INCOMPLETE || |
| 2253 | result == ImgDrawResult::TEMPORARY_ERROR) { |
| 2254 | // If the current image failed to paint because it's still loading or |
| 2255 | // decoding, try painting the previous image. |
| 2256 | if (mPrevImage) { |
| 2257 | result = |
| 2258 | frame->PaintImage(*aCtx, ToReferenceFrame(), |
| 2259 | GetPaintRect(aBuilder, aCtx), mPrevImage, flags); |
| 2260 | } |
| 2261 | } |
| 2262 | } |
| 2263 | |
| 2264 | nsRect nsDisplayImage::GetDestRect() const { |
| 2265 | bool snap = true; |
| 2266 | const nsRect frameContentBox = GetBounds(&snap); |
| 2267 | nsImageFrame* imageFrame = static_cast<nsImageFrame*>(mFrame); |
| 2268 | return imageFrame->GetDestRect(frameContentBox); |
| 2269 | } |
| 2270 | |
| 2271 | nsRegion nsDisplayImage::GetOpaqueRegion(nsDisplayListBuilder* aBuilder, |
| 2272 | bool* aSnap) const { |
| 2273 | *aSnap = false; |
| 2274 | if (mImage && mImage->WillDrawOpaqueNow()) { |
| 2275 | const nsRect frameContentBox = GetBounds(aSnap); |
| 2276 | return GetDestRect().Intersect(frameContentBox); |
| 2277 | } |
| 2278 | return nsRegion(); |
| 2279 | } |
| 2280 | |
| 2281 | bool nsDisplayImage::CreateWebRenderCommands( |
| 2282 | mozilla::wr::DisplayListBuilder& aBuilder, |
| 2283 | mozilla::wr::IpcResourceUpdateQueue& aResources, |
| 2284 | const StackingContextHelper& aSc, RenderRootStateManager* aManager, |
| 2285 | nsDisplayListBuilder* aDisplayListBuilder) { |
| 2286 | if (!mImage) { |
| 2287 | return false; |
| 2288 | } |
| 2289 | |
| 2290 | MOZ_ASSERT(mFrame->IsImageFrame() || mFrame->IsImageControlFrame())do { static_assert( mozilla::detail::AssertionConditionType< decltype(mFrame->IsImageFrame() || mFrame->IsImageControlFrame ())>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(mFrame->IsImageFrame() || mFrame->IsImageControlFrame ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("mFrame->IsImageFrame() || mFrame->IsImageControlFrame()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 2290); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mFrame->IsImageFrame() || mFrame->IsImageControlFrame()" ")"); do { *((volatile int*)__null) = 2290; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2291 | // Image layer doesn't support draw focus ring for image map. |
| 2292 | auto* frame = static_cast<nsImageFrame*>(mFrame); |
| 2293 | if (frame->HasImageMap()) { |
| 2294 | return false; |
| 2295 | } |
| 2296 | |
| 2297 | frame->AssertSyncDecodingHintIsInSync(); |
| 2298 | const bool oldImageIsDifferent = |
| 2299 | OldImageHasDifferentRatio(*frame, *mImage, mPrevImage); |
| 2300 | |
| 2301 | uint32_t flags = aDisplayListBuilder->GetImageDecodeFlags(); |
| 2302 | if (aDisplayListBuilder->ShouldSyncDecodeImages() || oldImageIsDifferent || |
| 2303 | frame->mForceSyncDecoding) { |
| 2304 | flags |= imgIContainer::FLAG_SYNC_DECODE; |
| 2305 | } |
| 2306 | if (StaticPrefs::image_svg_blob_image() && |
| 2307 | mImage->GetType() == imgIContainer::TYPE_VECTOR) { |
| 2308 | flags |= imgIContainer::FLAG_RECORD_BLOB; |
| 2309 | } |
| 2310 | |
| 2311 | const nsRect destAppUnits = GetDestRect(); |
| 2312 | const int32_t factor = mFrame->PresContext()->AppUnitsPerDevPixel(); |
| 2313 | LayoutDeviceRect destRect( |
| 2314 | LayoutDeviceRect::FromAppUnits(destAppUnits, factor)); |
| 2315 | |
| 2316 | SVGImageContext svgContext; |
| 2317 | Maybe<ImageIntRegion> region; |
| 2318 | IntSize decodeSize = nsLayoutUtils::ComputeImageContainerDrawingParameters( |
| 2319 | mImage, mFrame, destRect, destRect, aSc, flags, svgContext, region); |
| 2320 | |
| 2321 | RefPtr<image::WebRenderImageProvider> provider; |
| 2322 | ImgDrawResult drawResult = |
| 2323 | mImage->GetImageProvider(aManager->LayerManager(), decodeSize, svgContext, |
| 2324 | region, flags, getter_AddRefs(provider)); |
| 2325 | |
| 2326 | if (nsCOMPtr<imgIRequest> currentRequest = frame->GetCurrentRequest()) { |
| 2327 | LCPHelpers::FinalizeLCPEntryForImage( |
| 2328 | frame->GetContent()->AsElement(), |
| 2329 | static_cast<imgRequestProxy*>(currentRequest.get()), |
| 2330 | destAppUnits - ToReferenceFrame()); |
| 2331 | } |
| 2332 | |
| 2333 | // While we got a container, it may not contain a fully decoded surface. If |
| 2334 | // that is the case, and we have an image we were previously displaying which |
| 2335 | // has a fully decoded surface, then we should prefer the previous image. |
| 2336 | bool updatePrevImage = false; |
| 2337 | switch (drawResult) { |
| 2338 | case ImgDrawResult::NOT_READY: |
| 2339 | case ImgDrawResult::INCOMPLETE: |
| 2340 | case ImgDrawResult::TEMPORARY_ERROR: |
| 2341 | if (mPrevImage && mPrevImage != mImage) { |
| 2342 | // The current image and the previous image might be switching between |
| 2343 | // rasterized surfaces and blob recordings, so we need to update the |
| 2344 | // flags appropriately. |
| 2345 | uint32_t prevFlags = flags; |
| 2346 | if (StaticPrefs::image_svg_blob_image() && |
| 2347 | mPrevImage->GetType() == imgIContainer::TYPE_VECTOR) { |
| 2348 | prevFlags |= imgIContainer::FLAG_RECORD_BLOB; |
| 2349 | } else { |
| 2350 | prevFlags &= ~imgIContainer::FLAG_RECORD_BLOB; |
| 2351 | } |
| 2352 | |
| 2353 | RefPtr<image::WebRenderImageProvider> prevProvider; |
| 2354 | ImgDrawResult prevDrawResult = mPrevImage->GetImageProvider( |
| 2355 | aManager->LayerManager(), decodeSize, svgContext, region, prevFlags, |
| 2356 | getter_AddRefs(prevProvider)); |
| 2357 | if (prevProvider && (prevDrawResult == ImgDrawResult::SUCCESS || |
| 2358 | prevDrawResult == ImgDrawResult::WRONG_SIZE)) { |
| 2359 | // We use WRONG_SIZE here to ensure that when the frame next tries to |
| 2360 | // invalidate due to a frame update from the current image, we don't |
| 2361 | // consider the result from the previous image to be a valid result to |
| 2362 | // avoid redrawing. |
| 2363 | drawResult = ImgDrawResult::WRONG_SIZE; |
| 2364 | provider = std::move(prevProvider); |
| 2365 | flags = prevFlags; |
| 2366 | break; |
| 2367 | } |
| 2368 | |
| 2369 | // Previous image was unusable; we can forget about it. |
| 2370 | updatePrevImage = true; |
| 2371 | } |
| 2372 | break; |
| 2373 | case ImgDrawResult::NOT_SUPPORTED: |
| 2374 | return false; |
| 2375 | default: |
| 2376 | updatePrevImage = mPrevImage != mImage; |
| 2377 | break; |
| 2378 | } |
| 2379 | |
| 2380 | // The previous image was not used, and is different from the current image. |
| 2381 | // We should forget about it. We need to update the frame as well because the |
| 2382 | // display item may get recreated. |
| 2383 | if (updatePrevImage) { |
| 2384 | mPrevImage = mImage; |
| 2385 | frame->mPrevImage = frame->mImage; |
| 2386 | } |
| 2387 | |
| 2388 | // If the image provider is null, we don't want to fallback. Any other |
| 2389 | // failure will be due to resource constraints and fallback is unlikely to |
| 2390 | // help us. Hence we can ignore the return value from PushImage. |
| 2391 | aManager->CommandBuilder().PushImageProvider( |
| 2392 | this, provider, drawResult, aBuilder, aResources, destRect, destRect); |
| 2393 | return true; |
| 2394 | } |
| 2395 | |
| 2396 | ImgDrawResult nsImageFrame::PaintImage(gfxContext& aRenderingContext, |
| 2397 | nsPoint aPt, const nsRect& aDirtyRect, |
| 2398 | imgIContainer* aImage, uint32_t aFlags) { |
| 2399 | DrawTarget* drawTarget = aRenderingContext.GetDrawTarget(); |
| 2400 | |
| 2401 | // Render the image into our content area (the area inside |
| 2402 | // the borders and padding) |
| 2403 | NS_ASSERTION(GetContentRectRelativeToSelf().width == mComputedSize.width,do { if (!(GetContentRectRelativeToSelf().width == mComputedSize .width)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "bad width", "GetContentRectRelativeToSelf().width == mComputedSize.width" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 2404); MOZ_PretendNoReturn(); } } while (0) |
| 2404 | "bad width")do { if (!(GetContentRectRelativeToSelf().width == mComputedSize .width)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "bad width", "GetContentRectRelativeToSelf().width == mComputedSize.width" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 2404); MOZ_PretendNoReturn(); } } while (0); |
| 2405 | |
| 2406 | nsPoint anchorPoint; |
| 2407 | nsRect dest = GetDestRect(GetContentRectRelativeToSelf() + aPt, &anchorPoint); |
| 2408 | |
| 2409 | SVGImageContext svgContext; |
| 2410 | SVGImageContext::MaybeStoreContextPaint(svgContext, this, aImage); |
| 2411 | |
| 2412 | ImgDrawResult result = nsLayoutUtils::DrawSingleImage( |
| 2413 | aRenderingContext, PresContext(), aImage, |
| 2414 | nsLayoutUtils::GetSamplingFilterForFrame(this), dest, aDirtyRect, |
| 2415 | svgContext, aFlags, &anchorPoint); |
| 2416 | |
| 2417 | if (nsImageMap* map = GetImageMap()) { |
| 2418 | gfxPoint devPixelOffset = nsLayoutUtils::PointToGfxPoint( |
| 2419 | dest.TopLeft(), PresContext()->AppUnitsPerDevPixel()); |
| 2420 | AutoRestoreTransform autoRestoreTransform(drawTarget); |
| 2421 | drawTarget->SetTransform( |
| 2422 | drawTarget->GetTransform().PreTranslate(ToPoint(devPixelOffset))); |
| 2423 | |
| 2424 | // solid white stroke: |
| 2425 | ColorPattern white(ToDeviceColor(sRGBColor::OpaqueWhite())); |
| 2426 | map->Draw(this, *drawTarget, white); |
| 2427 | |
| 2428 | // then dashed black stroke over the top: |
| 2429 | ColorPattern black(ToDeviceColor(sRGBColor::OpaqueBlack())); |
| 2430 | StrokeOptions strokeOptions; |
| 2431 | nsLayoutUtils::InitDashPattern(strokeOptions, StyleBorderStyle::Dotted); |
| 2432 | map->Draw(this, *drawTarget, black, strokeOptions); |
| 2433 | } |
| 2434 | |
| 2435 | if (result == ImgDrawResult::SUCCESS) { |
| 2436 | mPrevImage = aImage; |
| 2437 | } else if (result == ImgDrawResult::BAD_IMAGE) { |
| 2438 | mPrevImage = nullptr; |
| 2439 | } |
| 2440 | |
| 2441 | return result; |
| 2442 | } |
| 2443 | |
| 2444 | already_AddRefed<imgIRequest> nsImageFrame::GetCurrentRequest() const { |
| 2445 | if (mKind != Kind::ImageLoadingContent) { |
| 2446 | return do_AddRef(mOwnedRequest); |
| 2447 | } |
| 2448 | |
| 2449 | MOZ_ASSERT(!mOwnedRequest)do { static_assert( mozilla::detail::AssertionConditionType< decltype(!mOwnedRequest)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!mOwnedRequest))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!mOwnedRequest" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 2449); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!mOwnedRequest" ")"); do { *((volatile int*)__null) = 2449; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2450 | |
| 2451 | nsCOMPtr<imgIRequest> request; |
| 2452 | nsCOMPtr<nsIImageLoadingContent> imageLoader = do_QueryInterface(mContent); |
| 2453 | MOZ_ASSERT(imageLoader)do { static_assert( mozilla::detail::AssertionConditionType< decltype(imageLoader)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(imageLoader))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("imageLoader", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 2453); AnnotateMozCrashReason("MOZ_ASSERT" "(" "imageLoader" ")"); do { *((volatile int*)__null) = 2453; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2454 | imageLoader->GetRequest(nsIImageLoadingContent::CURRENT_REQUEST, |
| 2455 | getter_AddRefs(request)); |
| 2456 | return request.forget(); |
| 2457 | } |
| 2458 | |
| 2459 | void nsImageFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder, |
| 2460 | const nsDisplayListSet& aLists) { |
| 2461 | if (!IsVisibleForPainting()) { |
| 2462 | return; |
| 2463 | } |
| 2464 | |
| 2465 | DisplayBorderBackgroundOutline(aBuilder, aLists); |
| 2466 | |
| 2467 | if (HidesContent()) { |
| 2468 | DisplaySelectionOverlay(aBuilder, aLists.Content(), |
| 2469 | nsISelectionDisplay::DISPLAY_IMAGES); |
| 2470 | return; |
| 2471 | } |
| 2472 | |
| 2473 | uint32_t clipFlags = |
| 2474 | nsStyleUtil::ObjectPropsMightCauseOverflow(StylePosition()) |
| 2475 | ? 0 |
| 2476 | : DisplayListClipState::ASSUME_DRAWING_RESTRICTED_TO_CONTENT_RECT; |
| 2477 | |
| 2478 | DisplayListClipState::AutoClipContainingBlockDescendantsToContentBox clip( |
| 2479 | aBuilder, this, clipFlags); |
| 2480 | |
| 2481 | if (!mComputedSize.IsEmpty()) { |
| 2482 | const bool imageOK = mKind != Kind::ImageLoadingContent || |
| 2483 | ImageOk(mContent->AsElement()->State()); |
| 2484 | |
| 2485 | nsCOMPtr<imgIRequest> currentRequest = GetCurrentRequest(); |
| 2486 | |
| 2487 | const bool isImageFromStyle = |
| 2488 | mKind != Kind::ImageLoadingContent && mKind != Kind::XULImage; |
| 2489 | const bool drawAltFeedback = [&] { |
| 2490 | if (!imageOK) { |
| 2491 | return true; |
| 2492 | } |
| 2493 | // If we're a gradient, we don't need to draw alt feedback. |
| 2494 | if (isImageFromStyle && !GetImageFromStyle()->IsImageRequestType()) { |
| 2495 | return false; |
| 2496 | } |
| 2497 | // XXX(seth): The SizeIsAvailable check here should not be necessary - the |
| 2498 | // intention is that a non-null mImage means we have a size, but there is |
| 2499 | // currently some code that violates this invariant. |
| 2500 | return !mImage || !SizeIsAvailable(currentRequest); |
| 2501 | }(); |
| 2502 | |
| 2503 | if (drawAltFeedback) { |
| 2504 | // No image yet, or image load failed. Draw the alt-text and an icon |
| 2505 | // indicating the status |
| 2506 | aLists.Content()->AppendNewToTop<nsDisplayAltFeedback>(aBuilder, this); |
| 2507 | |
| 2508 | // This image is visible (we are being asked to paint it) but it's not |
| 2509 | // decoded yet. And we are not going to ask the image to draw, so this |
| 2510 | // may be the only chance to tell it that it should decode. |
| 2511 | if (currentRequest) { |
| 2512 | uint32_t status = 0; |
| 2513 | currentRequest->GetImageStatus(&status); |
| 2514 | if (!(status & imgIRequest::STATUS_DECODE_COMPLETE)) { |
| 2515 | MaybeDecodeForPredictedSize(); |
| 2516 | } |
| 2517 | // Increase loading priority if the image is ready to be displayed. |
| 2518 | if (!(status & imgIRequest::STATUS_LOAD_COMPLETE)) { |
| 2519 | currentRequest->BoostPriority(imgIRequest::CATEGORY_DISPLAY); |
| 2520 | } |
| 2521 | } |
| 2522 | } else { |
| 2523 | if (mImage) { |
| 2524 | aLists.Content()->AppendNewToTop<nsDisplayImage>(aBuilder, this, mImage, |
| 2525 | mPrevImage); |
| 2526 | } else if (isImageFromStyle) { |
| 2527 | aLists.Content()->AppendNewToTop<nsDisplayGradient>(aBuilder, this); |
| 2528 | } |
| 2529 | |
| 2530 | // If we were previously displaying an icon, we're not anymore |
| 2531 | if (mDisplayingIcon) { |
| 2532 | BrokenImageIcon::RemoveObserver(this); |
| 2533 | mDisplayingIcon = false; |
| 2534 | } |
| 2535 | } |
| 2536 | } |
| 2537 | |
| 2538 | if (ShouldDisplaySelection()) { |
| 2539 | DisplaySelectionOverlay(aBuilder, aLists.Content(), |
| 2540 | nsISelectionDisplay::DISPLAY_IMAGES); |
| 2541 | } |
| 2542 | |
| 2543 | BuildDisplayListForNonBlockChildren(aBuilder, aLists); |
| 2544 | } |
| 2545 | |
| 2546 | bool nsImageFrame::ShouldDisplaySelection() { |
| 2547 | int16_t displaySelection = PresShell()->GetSelectionFlags(); |
| 2548 | if (!(displaySelection & nsISelectionDisplay::DISPLAY_IMAGES)) { |
| 2549 | // no need to check the blue border, we cannot be drawn selected. |
| 2550 | return false; |
| 2551 | } |
| 2552 | |
| 2553 | if (displaySelection != nsISelectionDisplay::DISPLAY_ALL) { |
| 2554 | return true; |
| 2555 | } |
| 2556 | |
| 2557 | // If the image is currently resize target of the editor, don't draw the |
| 2558 | // selection overlay. |
| 2559 | HTMLEditor* htmlEditor = nsContentUtils::GetHTMLEditor(PresContext()); |
| 2560 | if (!htmlEditor) { |
| 2561 | return true; |
| 2562 | } |
| 2563 | |
| 2564 | return htmlEditor->GetResizerTarget() != mContent; |
| 2565 | } |
| 2566 | |
| 2567 | nsImageMap* nsImageFrame::GetImageMap() { |
| 2568 | if (!mImageMap) { |
| 2569 | if (nsIContent* map = GetMapElement()) { |
| 2570 | mImageMap = new nsImageMap(); |
| 2571 | mImageMap->Init(this, map); |
| 2572 | } |
| 2573 | } |
| 2574 | |
| 2575 | return mImageMap; |
| 2576 | } |
| 2577 | |
| 2578 | bool nsImageFrame::IsServerImageMap() { |
| 2579 | return mContent->AsElement()->HasAttr(nsGkAtoms::ismap); |
| 2580 | } |
| 2581 | |
| 2582 | CSSIntPoint nsImageFrame::TranslateEventCoords(const nsPoint& aPoint) { |
| 2583 | const nsRect contentRect = GetContentRectRelativeToSelf(); |
| 2584 | // Subtract out border and padding here so that the coordinates are |
| 2585 | // now relative to the content area of this frame. |
| 2586 | return CSSPixel::FromAppUnitsRounded(aPoint - contentRect.TopLeft()); |
| 2587 | } |
| 2588 | |
| 2589 | bool nsImageFrame::GetAnchorHREFTargetAndNode(nsIURI** aHref, nsString& aTarget, |
| 2590 | nsIContent** aNode) { |
| 2591 | aTarget.Truncate(); |
| 2592 | *aHref = nullptr; |
| 2593 | *aNode = nullptr; |
| 2594 | |
| 2595 | // Walk up the content tree, looking for an nsIDOMAnchorElement |
| 2596 | for (nsIContent* content = mContent->GetParent(); content; |
| 2597 | content = content->GetParent()) { |
| 2598 | nsCOMPtr<dom::Link> link = do_QueryInterface(content); |
| 2599 | if (!link) { |
| 2600 | continue; |
| 2601 | } |
| 2602 | if (nsCOMPtr<nsIURI> href = link->GetURI()) { |
| 2603 | href.forget(aHref); |
| 2604 | } |
| 2605 | |
| 2606 | if (auto* anchor = HTMLAnchorElement::FromNode(content)) { |
| 2607 | anchor->GetLinkTarget(aTarget); |
| 2608 | } |
| 2609 | NS_ADDREF(*aNode = content)(*aNode = content)->AddRef(); |
| 2610 | return *aHref != nullptr; |
| 2611 | } |
| 2612 | return false; |
| 2613 | } |
| 2614 | |
| 2615 | bool nsImageFrame::IsLeafDynamic() const { |
| 2616 | if (mKind != Kind::ImageLoadingContent) { |
| 2617 | // Image frames created for "content: url()" could have an author-controlled |
| 2618 | // shadow root, we want to be a regular leaf for those. |
| 2619 | return true; |
| 2620 | } |
| 2621 | // For elements that create image frames, calling attachShadow() will throw, |
| 2622 | // so the only ShadowRoot we could ever have is a UA widget. |
| 2623 | const auto* shadow = mContent->AsElement()->GetShadowRoot(); |
| 2624 | MOZ_ASSERT_IF(shadow, shadow->IsUAWidget())do { if (shadow) { do { static_assert( mozilla::detail::AssertionConditionType <decltype(shadow->IsUAWidget())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(shadow->IsUAWidget()))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("shadow->IsUAWidget()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 2624); AnnotateMozCrashReason("MOZ_ASSERT" "(" "shadow->IsUAWidget()" ")"); do { *((volatile int*)__null) = 2624; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); |
| 2625 | return !shadow; |
| 2626 | } |
| 2627 | |
| 2628 | nsresult nsImageFrame::GetContentForEvent(const WidgetEvent* aEvent, |
| 2629 | nsIContent** aContent) { |
| 2630 | NS_ENSURE_ARG_POINTER(aContent)do { if ((__builtin_expect(!!(!(aContent)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "aContent" ") failed", nullptr , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 2630); return NS_ERROR_INVALID_POINTER; } } while (false); |
| 2631 | |
| 2632 | nsIFrame* f = nsLayoutUtils::GetNonGeneratedAncestor(this); |
| 2633 | if (f != this) { |
| 2634 | return f->GetContentForEvent(aEvent, aContent); |
| 2635 | } |
| 2636 | |
| 2637 | // XXX We need to make this special check for area element's capturing the |
| 2638 | // mouse due to bug 135040. Remove it once that's fixed. |
| 2639 | nsIContent* capturingContent = aEvent->HasMouseEventMessage() |
| 2640 | ? PresShell::GetCapturingContent() |
| 2641 | : nullptr; |
| 2642 | if (capturingContent && capturingContent->GetPrimaryFrame() == this) { |
| 2643 | *aContent = capturingContent; |
| 2644 | NS_IF_ADDREF(*aContent)ns_if_addref(*aContent); |
| 2645 | return NS_OK; |
| 2646 | } |
| 2647 | |
| 2648 | if (nsImageMap* map = GetImageMap()) { |
| 2649 | const CSSIntPoint p = TranslateEventCoords( |
| 2650 | nsLayoutUtils::GetEventCoordinatesRelativeTo(aEvent, RelativeTo{this})); |
| 2651 | nsCOMPtr<nsIContent> area = map->GetArea(p); |
| 2652 | if (area) { |
| 2653 | area.forget(aContent); |
| 2654 | return NS_OK; |
| 2655 | } |
| 2656 | } |
| 2657 | |
| 2658 | *aContent = GetContent(); |
| 2659 | NS_IF_ADDREF(*aContent)ns_if_addref(*aContent); |
| 2660 | return NS_OK; |
| 2661 | } |
| 2662 | |
| 2663 | // XXX what should clicks on transparent pixels do? |
| 2664 | nsresult nsImageFrame::HandleEvent(nsPresContext* aPresContext, |
| 2665 | WidgetGUIEvent* aEvent, |
| 2666 | nsEventStatus* aEventStatus) { |
| 2667 | NS_ENSURE_ARG_POINTER(aEventStatus)do { if ((__builtin_expect(!!(!(aEventStatus)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "aEventStatus" ") failed" , nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 2667); return NS_ERROR_INVALID_POINTER; } } while (false); |
| 2668 | |
| 2669 | if ((aEvent->mMessage == ePointerClick && |
| 2670 | aEvent->AsMouseEvent()->mButton == MouseButton::ePrimary) || |
| 2671 | aEvent->mMessage == eMouseMove) { |
| 2672 | nsImageMap* map = GetImageMap(); |
| 2673 | bool isServerMap = IsServerImageMap(); |
| 2674 | if (map || isServerMap) { |
| 2675 | CSSIntPoint p = |
| 2676 | TranslateEventCoords(nsLayoutUtils::GetEventCoordinatesRelativeTo( |
| 2677 | aEvent, RelativeTo{this})); |
| 2678 | |
| 2679 | // Even though client-side image map triggering happens |
| 2680 | // through content, we need to make sure we're not inside |
| 2681 | // (in case we deal with a case of both client-side and |
| 2682 | // sever-side on the same image - it happens!) |
| 2683 | const bool inside = map && map->GetArea(p); |
| 2684 | |
| 2685 | if (!inside && isServerMap) { |
| 2686 | // Server side image maps use the href in a containing anchor |
| 2687 | // element to provide the basis for the destination url. |
| 2688 | nsCOMPtr<nsIURI> uri; |
| 2689 | nsAutoString target; |
| 2690 | nsCOMPtr<nsIContent> anchorNode; |
| 2691 | if (GetAnchorHREFTargetAndNode(getter_AddRefs(uri), target, |
| 2692 | getter_AddRefs(anchorNode))) { |
| 2693 | // XXX if the mouse is over/clicked in the border/padding area |
| 2694 | // we should probably just pretend nothing happened. Nav4 |
| 2695 | // keeps the x,y coordinates positive as we do; IE doesn't |
| 2696 | // bother. Both of them send the click through even when the |
| 2697 | // mouse is over the border. |
| 2698 | if (p.x < 0) p.x = 0; |
| 2699 | if (p.y < 0) p.y = 0; |
| 2700 | |
| 2701 | nsAutoCString spec; |
| 2702 | nsresult rv = uri->GetSpec(spec); |
| 2703 | NS_ENSURE_SUCCESS(rv, rv)do { nsresult __rv = rv; if (((bool)(__builtin_expect(!!(NS_FAILED_impl (__rv)), 0)))) { const char* name = mozilla::GetStaticErrorName (__rv); mozilla::SmprintfPointer msg = mozilla::Smprintf( "NS_ENSURE_SUCCESS(%s, %s) failed with " "result 0x%" "X" "%s%s%s", "rv", "rv", static_cast<uint32_t >(__rv), name ? " (" : "", name ? name : "", name ? ")" : "" ); NS_DebugBreak(NS_DEBUG_WARNING, msg.get(), nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 2703); return rv; } } while (false); |
| 2704 | |
| 2705 | spec += nsPrintfCString("?%d,%d", p.x.value, p.y.value); |
| 2706 | rv = NS_MutateURI(uri).SetSpec(spec).Finalize(uri); |
| 2707 | NS_ENSURE_SUCCESS(rv, rv)do { nsresult __rv = rv; if (((bool)(__builtin_expect(!!(NS_FAILED_impl (__rv)), 0)))) { const char* name = mozilla::GetStaticErrorName (__rv); mozilla::SmprintfPointer msg = mozilla::Smprintf( "NS_ENSURE_SUCCESS(%s, %s) failed with " "result 0x%" "X" "%s%s%s", "rv", "rv", static_cast<uint32_t >(__rv), name ? " (" : "", name ? name : "", name ? ")" : "" ); NS_DebugBreak(NS_DEBUG_WARNING, msg.get(), nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 2707); return rv; } } while (false); |
| 2708 | |
| 2709 | bool clicked = false; |
| 2710 | if (aEvent->mMessage == ePointerClick && |
| 2711 | !aEvent->DefaultPrevented()) { |
| 2712 | *aEventStatus = nsEventStatus_eConsumeDoDefault; |
| 2713 | clicked = true; |
| 2714 | } |
| 2715 | nsContentUtils::TriggerLink(anchorNode, uri, target, clicked, |
| 2716 | /* isTrusted */ true); |
| 2717 | } |
| 2718 | } |
| 2719 | } |
| 2720 | } |
| 2721 | |
| 2722 | return nsAtomicContainerFrame::HandleEvent(aPresContext, aEvent, |
| 2723 | aEventStatus); |
| 2724 | } |
| 2725 | |
| 2726 | nsIFrame::Cursor nsImageFrame::GetCursor(const nsPoint& aPoint) { |
| 2727 | nsImageMap* map = GetImageMap(); |
| 2728 | if (!map) { |
| 2729 | return nsIFrame::GetCursor(aPoint); |
| 2730 | } |
| 2731 | const CSSIntPoint p = TranslateEventCoords(aPoint); |
| 2732 | HTMLAreaElement* area = map->GetArea(p); |
| 2733 | if (!area) { |
| 2734 | return nsIFrame::GetCursor(aPoint); |
| 2735 | } |
| 2736 | |
| 2737 | // Use the cursor from the style of the *area* element. |
| 2738 | RefPtr<ComputedStyle> areaStyle = |
| 2739 | PresShell()->StyleSet()->ResolveStyleLazily(*area); |
| 2740 | |
| 2741 | // This is one of the cases, like the <xul:tree> pseudo-style stuff, where we |
| 2742 | // get styles out of the blue and expect to trigger image loads for those. |
| 2743 | areaStyle->StartImageLoads(*PresContext()->Document()); |
| 2744 | |
| 2745 | StyleCursorKind kind = areaStyle->StyleUI()->Cursor().keyword; |
| 2746 | if (kind == StyleCursorKind::Auto) { |
| 2747 | kind = StyleCursorKind::Default; |
| 2748 | } |
| 2749 | return Cursor{kind, AllowCustomCursorImage::Yes, std::move(areaStyle)}; |
| 2750 | } |
| 2751 | |
| 2752 | nsresult nsImageFrame::AttributeChanged(int32_t aNameSpaceID, |
| 2753 | nsAtom* aAttribute, int32_t aModType) { |
| 2754 | nsresult rv = nsAtomicContainerFrame::AttributeChanged(aNameSpaceID, |
| 2755 | aAttribute, aModType); |
| 2756 | if (NS_FAILED(rv)((bool)(__builtin_expect(!!(NS_FAILED_impl(rv)), 0)))) { |
| 2757 | return rv; |
| 2758 | } |
| 2759 | if (nsGkAtoms::alt == aAttribute) { |
| 2760 | PresShell()->FrameNeedsReflow( |
| 2761 | this, IntrinsicDirty::FrameAncestorsAndDescendants, NS_FRAME_IS_DIRTY); |
| 2762 | } |
| 2763 | if (mKind == Kind::XULImage && aAttribute == nsGkAtoms::src && |
| 2764 | aNameSpaceID == kNameSpaceID_None) { |
| 2765 | UpdateXULImage(); |
| 2766 | } |
| 2767 | return NS_OK; |
| 2768 | } |
| 2769 | |
| 2770 | void nsImageFrame::OnVisibilityChange( |
| 2771 | Visibility aNewVisibility, const Maybe<OnNonvisible>& aNonvisibleAction) { |
| 2772 | if (mKind == Kind::ImageLoadingContent) { |
| 2773 | nsCOMPtr<nsIImageLoadingContent> imageLoader = do_QueryInterface(mContent); |
| 2774 | imageLoader->OnVisibilityChange(aNewVisibility, aNonvisibleAction); |
| 2775 | } |
| 2776 | |
| 2777 | if (aNewVisibility == Visibility::ApproximatelyVisible && |
| 2778 | PresShell()->IsActive()) { |
| 2779 | MaybeDecodeForPredictedSize(); |
| 2780 | } |
| 2781 | |
| 2782 | nsAtomicContainerFrame::OnVisibilityChange(aNewVisibility, aNonvisibleAction); |
| 2783 | } |
| 2784 | |
| 2785 | #ifdef DEBUG_FRAME_DUMP1 |
| 2786 | nsresult nsImageFrame::GetFrameName(nsAString& aResult) const { |
| 2787 | return MakeFrameName(u"ImageFrame"_ns, aResult); |
| 2788 | } |
| 2789 | |
| 2790 | void nsImageFrame::List(FILE* out, const char* aPrefix, |
| 2791 | ListFlags aFlags) const { |
| 2792 | nsCString str; |
| 2793 | ListGeneric(str, aPrefix, aFlags); |
| 2794 | |
| 2795 | // output the img src url |
| 2796 | if (nsCOMPtr<imgIRequest> currentRequest = GetCurrentRequest()) { |
| 2797 | nsCOMPtr<nsIURI> uri = currentRequest->GetURI(); |
| 2798 | nsAutoCString uristr; |
| 2799 | uri->GetAsciiSpec(uristr); |
| 2800 | str += nsPrintfCString(" [src=%s]", uristr.get()); |
| 2801 | } |
| 2802 | fprintf_stderr(out, "%s\n", str.get()); |
| 2803 | } |
| 2804 | #endif |
| 2805 | |
| 2806 | LogicalSides nsImageFrame::GetLogicalSkipSides() const { |
| 2807 | LogicalSides skip(mWritingMode); |
| 2808 | if (MOZ_UNLIKELY(StyleBorder()->mBoxDecorationBreak ==(__builtin_expect(!!(StyleBorder()->mBoxDecorationBreak == StyleBoxDecorationBreak::Clone), 0)) |
| 2809 | StyleBoxDecorationBreak::Clone)(__builtin_expect(!!(StyleBorder()->mBoxDecorationBreak == StyleBoxDecorationBreak::Clone), 0))) { |
| 2810 | return skip; |
| 2811 | } |
| 2812 | if (GetPrevInFlow()) { |
| 2813 | skip += LogicalSide::BStart; |
| 2814 | } |
| 2815 | if (GetNextInFlow()) { |
| 2816 | skip += LogicalSide::BEnd; |
| 2817 | } |
| 2818 | return skip; |
| 2819 | } |
| 2820 | NS_IMPL_ISUPPORTS(nsImageListener, imgINotificationObserver)MozExternalRefCountType nsImageListener::AddRef(void) { static_assert (!std::is_destructible_v<nsImageListener>, "Reference-counted class " "nsImageListener" " should not have a public destructor. " "Make this class's destructor non-public" ); do { static_assert( mozilla::detail::AssertionConditionType <decltype(int32_t(mRefCnt) >= 0)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(int32_t(mRefCnt) >= 0))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("int32_t(mRefCnt) >= 0" " (" "illegal refcnt" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 2820); AnnotateMozCrashReason("MOZ_ASSERT" "(" "int32_t(mRefCnt) >= 0" ") (" "illegal refcnt" ")"); do { *((volatile int*)__null) = 2820; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); do { static_assert( mozilla::detail::AssertionConditionType <decltype("nsImageListener" != nullptr)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!("nsImageListener" != nullptr ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "\"nsImageListener\" != nullptr" " (" "Must specify a name" ")" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 2820); AnnotateMozCrashReason("MOZ_ASSERT" "(" "\"nsImageListener\" != nullptr" ") (" "Must specify a name" ")"); do { *((volatile int*)__null ) = 2820; __attribute__((nomerge)) ::abort(); } while (false) ; } } while (false); if (!mRefCnt.isThreadSafe) _mOwningThread .AssertOwnership("nsImageListener" " not thread-safe"); nsrefcnt count = ++mRefCnt; NS_LogAddRef((this), (count), ("nsImageListener" ), (uint32_t)(sizeof(*this))); return count; } MozExternalRefCountType nsImageListener::Release(void) { do { static_assert( mozilla ::detail::AssertionConditionType<decltype(int32_t(mRefCnt) > 0)>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(int32_t(mRefCnt) > 0))), 0))) { do { } while (false ); MOZ_ReportAssertionFailure("int32_t(mRefCnt) > 0" " (" "dup release" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 2820); AnnotateMozCrashReason("MOZ_ASSERT" "(" "int32_t(mRefCnt) > 0" ") (" "dup release" ")"); do { *((volatile int*)__null) = 2820 ; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); do { static_assert( mozilla::detail::AssertionConditionType <decltype("nsImageListener" != nullptr)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!("nsImageListener" != nullptr ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "\"nsImageListener\" != nullptr" " (" "Must specify a name" ")" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsImageFrame.cpp" , 2820); AnnotateMozCrashReason("MOZ_ASSERT" "(" "\"nsImageListener\" != nullptr" ") (" "Must specify a name" ")"); do { *((volatile int*)__null ) = 2820; __attribute__((nomerge)) ::abort(); } while (false) ; } } while (false); if (!mRefCnt.isThreadSafe) _mOwningThread .AssertOwnership("nsImageListener" " not thread-safe"); const char* const nametmp = "nsImageListener"; nsrefcnt count = -- mRefCnt; NS_LogRelease((this), (count), (nametmp)); if (count == 0) { mRefCnt = 1; delete (this); return 0; } return count ; } nsresult nsImageListener::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/generic/nsImageFrame.cpp" , 2820); MOZ_PretendNoReturn(); } } while (0); nsresult rv = NS_ERROR_FAILURE ; static_assert(1 > 0, "Need more arguments to NS_INTERFACE_TABLE" ); static const QITableEntry table[] = { {&mozilla::detail ::kImplementedIID<nsImageListener, imgINotificationObserver >, int32_t( reinterpret_cast<char*>(static_cast<imgINotificationObserver *>((nsImageListener*)0x1000)) - reinterpret_cast<char*> ((nsImageListener*)0x1000))}, {&mozilla::detail::kImplementedIID <nsImageListener, nsISupports>, int32_t(reinterpret_cast <char*>(static_cast<nsISupports*>( static_cast< imgINotificationObserver*>((nsImageListener*)0x1000))) - reinterpret_cast <char*>((nsImageListener*)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); return rv; } |
| 2821 | |
| 2822 | nsImageListener::nsImageListener(nsImageFrame* aFrame) : mFrame(aFrame) {} |
| 2823 | |
| 2824 | nsImageListener::~nsImageListener() = default; |
| 2825 | |
| 2826 | void nsImageListener::Notify(imgIRequest* aRequest, int32_t aType, |
| 2827 | const nsIntRect* aData) { |
| 2828 | if (!mFrame) { |
| 2829 | return; |
| 2830 | } |
| 2831 | |
| 2832 | return mFrame->Notify(aRequest, aType, aData); |
| 2833 | } |
| 2834 | |
| 2835 | static bool IsInAutoWidthTableCellForQuirk(nsIFrame* aFrame) { |
| 2836 | if (eCompatibility_NavQuirks != aFrame->PresContext()->CompatibilityMode()) |
| 2837 | return false; |
| 2838 | // Check if the parent of the closest nsBlockFrame has auto width. |
| 2839 | nsBlockFrame* ancestor = nsLayoutUtils::FindNearestBlockAncestor(aFrame); |
| 2840 | if (ancestor->Style()->GetPseudoType() == PseudoStyleType::cellContent) { |
| 2841 | // Assume direct parent is a table cell frame. |
| 2842 | nsIFrame* grandAncestor = static_cast<nsIFrame*>(ancestor->GetParent()); |
| 2843 | return grandAncestor && grandAncestor->StylePosition()->mWidth.IsAuto(); |
| 2844 | } |
| 2845 | return false; |
| 2846 | } |
| 2847 | |
| 2848 | void nsImageFrame::AddInlineMinISize(const IntrinsicSizeInput& aInput, |
| 2849 | InlineMinISizeData* aData) { |
| 2850 | // Note: we are one of the children that mPercentageBasisForChildren was |
| 2851 | // prepared for (i.e. our parent frame prepares the percentage basis for us, |
| 2852 | // not for our own children). Hence it's fine that we're resolving our |
| 2853 | // percentages sizes against this basis in IntrinsicForContainer(). |
| 2854 | nscoord isize = nsLayoutUtils::IntrinsicForContainer( |
| 2855 | aInput.mContext, this, IntrinsicISizeType::MinISize, |
| 2856 | aInput.mPercentageBasisForChildren); |
| 2857 | bool canBreak = !IsInAutoWidthTableCellForQuirk(this); |
| 2858 | aData->DefaultAddInlineMinISize(this, isize, canBreak); |
| 2859 | } |
| 2860 | |
| 2861 | void nsImageFrame::ReleaseGlobals() { BrokenImageIcon::Shutdown(); } |