| File: | var/lib/jenkins/workspace/firefox-scan-build/dom/serializers/nsDocumentEncoder.cpp |
| Warning: | line 1512, column 3 Value stored to 'rv' 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 | /* |
| 8 | * Object that can be used to serialize selections, ranges, or nodes |
| 9 | * to strings in a gazillion different ways. |
| 10 | */ |
| 11 | |
| 12 | #include <utility> |
| 13 | |
| 14 | #include "nscore.h" |
| 15 | #include "nsISupports.h" |
| 16 | #include "nsCOMPtr.h" |
| 17 | #include "nsCRT.h" |
| 18 | #include "nsIContentSerializer.h" |
| 19 | #include "nsIDocumentEncoder.h" |
| 20 | #include "nsINode.h" |
| 21 | #include "nsIContentInlines.h" |
| 22 | #include "nsComponentManagerUtils.h" |
| 23 | #include "nsIOutputStream.h" |
| 24 | #include "nsRange.h" |
| 25 | #include "nsGkAtoms.h" |
| 26 | #include "nsHTMLDocument.h" |
| 27 | #include "nsIContent.h" |
| 28 | #include "nsIScriptContext.h" |
| 29 | #include "nsIScriptGlobalObject.h" |
| 30 | #include "nsITransferable.h" |
| 31 | #include "mozilla/dom/Selection.h" |
| 32 | #include "nsContentUtils.h" |
| 33 | #include "nsElementTable.h" |
| 34 | #include "nsUnicharUtils.h" |
| 35 | #include "nsReadableUtils.h" |
| 36 | #include "nsTArray.h" |
| 37 | #include "nsIFrame.h" |
| 38 | #include "nsLayoutUtils.h" |
| 39 | #include "mozilla/StringBuffer.h" |
| 40 | #include "mozilla/dom/Comment.h" |
| 41 | #include "mozilla/dom/Document.h" |
| 42 | #include "mozilla/dom/DocumentType.h" |
| 43 | #include "mozilla/dom/Element.h" |
| 44 | #include "mozilla/dom/HTMLBRElement.h" |
| 45 | #include "mozilla/dom/ProcessingInstruction.h" |
| 46 | #include "mozilla/dom/ShadowRoot.h" |
| 47 | #include "mozilla/dom/AbstractRange.h" |
| 48 | #include "mozilla/dom/Text.h" |
| 49 | #include "mozilla/Encoding.h" |
| 50 | #include "mozilla/IntegerRange.h" |
| 51 | #include "mozilla/Maybe.h" |
| 52 | #include "mozilla/ScopeExit.h" |
| 53 | #include "mozilla/UniquePtr.h" |
| 54 | |
| 55 | using namespace mozilla; |
| 56 | using namespace mozilla::dom; |
| 57 | |
| 58 | enum nsRangeIterationDirection { kDirectionOut = -1, kDirectionIn = 1 }; |
| 59 | |
| 60 | class TextStreamer { |
| 61 | public: |
| 62 | /** |
| 63 | * @param aStream Will be kept alive by the TextStreamer. |
| 64 | * @param aUnicodeEncoder Needs to be non-nullptr. |
| 65 | */ |
| 66 | TextStreamer(nsIOutputStream& aStream, UniquePtr<Encoder> aUnicodeEncoder, |
| 67 | bool aIsPlainText, nsAString& aOutputBuffer); |
| 68 | |
| 69 | /** |
| 70 | * String will be truncated if it is written to stream. |
| 71 | */ |
| 72 | nsresult FlushIfStringLongEnough(); |
| 73 | |
| 74 | /** |
| 75 | * String will be truncated. |
| 76 | */ |
| 77 | nsresult ForceFlush(); |
| 78 | |
| 79 | private: |
| 80 | const static uint32_t kMaxLengthBeforeFlush = 1024; |
| 81 | |
| 82 | const static uint32_t kEncoderBufferSizeInBytes = 4096; |
| 83 | |
| 84 | nsresult EncodeAndWrite(); |
| 85 | |
| 86 | nsresult EncodeAndWriteAndTruncate(); |
| 87 | |
| 88 | const nsCOMPtr<nsIOutputStream> mStream; |
| 89 | const UniquePtr<Encoder> mUnicodeEncoder; |
| 90 | const bool mIsPlainText; |
| 91 | nsAString& mOutputBuffer; |
| 92 | }; |
| 93 | |
| 94 | TextStreamer::TextStreamer(nsIOutputStream& aStream, |
| 95 | UniquePtr<Encoder> aUnicodeEncoder, |
| 96 | bool aIsPlainText, nsAString& aOutputBuffer) |
| 97 | : mStream{&aStream}, |
| 98 | mUnicodeEncoder(std::move(aUnicodeEncoder)), |
| 99 | mIsPlainText(aIsPlainText), |
| 100 | mOutputBuffer(aOutputBuffer) { |
| 101 | MOZ_ASSERT(mUnicodeEncoder)do { static_assert( mozilla::detail::AssertionConditionType< decltype(mUnicodeEncoder)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mUnicodeEncoder))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("mUnicodeEncoder" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/serializers/nsDocumentEncoder.cpp" , 101); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mUnicodeEncoder" ")"); do { *((volatile int*)__null) = 101; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 102 | } |
| 103 | |
| 104 | nsresult TextStreamer::FlushIfStringLongEnough() { |
| 105 | nsresult rv = NS_OK; |
| 106 | |
| 107 | if (mOutputBuffer.Length() > kMaxLengthBeforeFlush) { |
| 108 | rv = EncodeAndWriteAndTruncate(); |
| 109 | } |
| 110 | |
| 111 | return rv; |
| 112 | } |
| 113 | |
| 114 | nsresult TextStreamer::ForceFlush() { return EncodeAndWriteAndTruncate(); } |
| 115 | |
| 116 | nsresult TextStreamer::EncodeAndWrite() { |
| 117 | if (mOutputBuffer.IsEmpty()) { |
| 118 | return NS_OK; |
| 119 | } |
| 120 | |
| 121 | uint8_t buffer[kEncoderBufferSizeInBytes]; |
| 122 | auto src = Span(mOutputBuffer); |
| 123 | auto bufferSpan = Span(buffer); |
| 124 | // Reserve space for terminator |
| 125 | auto dst = bufferSpan.To(bufferSpan.Length() - 1); |
| 126 | for (;;) { |
| 127 | uint32_t result; |
| 128 | size_t read; |
| 129 | size_t written; |
| 130 | if (mIsPlainText) { |
| 131 | std::tie(result, read, written) = |
| 132 | mUnicodeEncoder->EncodeFromUTF16WithoutReplacement(src, dst, false); |
| 133 | if (result != kInputEmpty && result != kOutputFull) { |
| 134 | // There's always room for one byte in the case of |
| 135 | // an unmappable character, because otherwise |
| 136 | // we'd have gotten `kOutputFull`. |
| 137 | dst[written++] = '?'; |
| 138 | } |
| 139 | } else { |
| 140 | std::tie(result, read, written, std::ignore) = |
| 141 | mUnicodeEncoder->EncodeFromUTF16(src, dst, false); |
| 142 | } |
| 143 | src = src.From(read); |
| 144 | // Sadly, we still have test cases that implement nsIOutputStream in JS, so |
| 145 | // the buffer needs to be zero-terminated for XPConnect to do its thing. |
| 146 | // See bug 170416. |
| 147 | bufferSpan[written] = 0; |
| 148 | uint32_t streamWritten; |
| 149 | nsresult rv = mStream->Write(reinterpret_cast<char*>(dst.Elements()), |
| 150 | written, &streamWritten); |
| 151 | if (NS_FAILED(rv)((bool)(__builtin_expect(!!(NS_FAILED_impl(rv)), 0)))) { |
| 152 | return rv; |
| 153 | } |
| 154 | if (result == kInputEmpty) { |
| 155 | return NS_OK; |
| 156 | } |
| 157 | } |
| 158 | } |
| 159 | |
| 160 | nsresult TextStreamer::EncodeAndWriteAndTruncate() { |
| 161 | const nsresult rv = EncodeAndWrite(); |
| 162 | mOutputBuffer.Truncate(); |
| 163 | return rv; |
| 164 | } |
| 165 | |
| 166 | /** |
| 167 | * The scope may be limited to either a selection, range, or node. |
| 168 | */ |
| 169 | class EncodingScope { |
| 170 | public: |
| 171 | /** |
| 172 | * @return true, iff the scope is limited to a selection, range or node. |
| 173 | */ |
| 174 | bool IsLimited() const; |
| 175 | |
| 176 | RefPtr<Selection> mSelection; |
| 177 | RefPtr<nsRange> mRange; |
| 178 | nsCOMPtr<nsINode> mNode; |
| 179 | bool mNodeIsContainer = false; |
| 180 | }; |
| 181 | |
| 182 | bool EncodingScope::IsLimited() const { return mSelection || mRange || mNode; } |
| 183 | |
| 184 | struct RangeBoundariesInclusiveAncestorsAndOffsets { |
| 185 | /** |
| 186 | * https://dom.spec.whatwg.org/#concept-tree-inclusive-ancestor. |
| 187 | */ |
| 188 | using InclusiveAncestors = AutoTArray<nsIContent*, 8>; |
| 189 | |
| 190 | /** |
| 191 | * https://dom.spec.whatwg.org/#concept-tree-inclusive-ancestor. |
| 192 | */ |
| 193 | using InclusiveAncestorsOffsets = AutoTArray<Maybe<uint32_t>, 8>; |
| 194 | |
| 195 | // The first node is the range's boundary node, the following ones the |
| 196 | // ancestors. |
| 197 | InclusiveAncestors mInclusiveAncestorsOfStart; |
| 198 | // The first offset represents where at the boundary node the range starts. |
| 199 | // Each other offset is the index of the child relative to its parent. |
| 200 | InclusiveAncestorsOffsets mInclusiveAncestorsOffsetsOfStart; |
| 201 | |
| 202 | // The first node is the range's boundary node, the following one the |
| 203 | // ancestors. |
| 204 | InclusiveAncestors mInclusiveAncestorsOfEnd; |
| 205 | // The first offset represents where at the boundary node the range ends. |
| 206 | // Each other offset is the index of the child relative to its parent. |
| 207 | InclusiveAncestorsOffsets mInclusiveAncestorsOffsetsOfEnd; |
| 208 | }; |
| 209 | |
| 210 | struct ContextInfoDepth { |
| 211 | uint32_t mStart = 0; |
| 212 | uint32_t mEnd = 0; |
| 213 | }; |
| 214 | |
| 215 | class nsDocumentEncoder : public nsIDocumentEncoder { |
| 216 | protected: |
| 217 | class RangeNodeContext { |
| 218 | public: |
| 219 | virtual ~RangeNodeContext() = default; |
| 220 | |
| 221 | virtual bool IncludeInContext(nsINode& aNode) const { return false; } |
| 222 | |
| 223 | virtual int32_t GetImmediateContextCount( |
| 224 | const nsTArray<nsINode*>& aAncestorArray) const { |
| 225 | return -1; |
| 226 | } |
| 227 | }; |
| 228 | |
| 229 | public: |
| 230 | nsDocumentEncoder(); |
| 231 | |
| 232 | protected: |
| 233 | /** |
| 234 | * @param aRangeNodeContext has to be non-null. |
| 235 | */ |
| 236 | explicit nsDocumentEncoder(UniquePtr<RangeNodeContext> aRangeNodeContext); |
| 237 | |
| 238 | public: |
| 239 | NS_DECL_CYCLE_COLLECTING_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: nsCycleCollectingAutoRefCnt mRefCnt; nsAutoOwningThread _mOwningThread; public: virtual void DeleteCycleCollectable( void); public: |
| 240 | NS_DECL_CYCLE_COLLECTION_CLASS(nsDocumentEncoder)class cycleCollection : public nsXPCOMCycleCollectionParticipant { public: constexpr explicit cycleCollection(Flags aFlags = 0 ) : nsXPCOMCycleCollectionParticipant(aFlags) {} private: public : virtual nsresult TraverseNative(void* p, nsCycleCollectionTraversalCallback & cb) override; virtual const char* ClassName() override { return "nsDocumentEncoder"; }; virtual void DeleteCycleCollectable (void* p) override { DowncastCCParticipant<nsDocumentEncoder >(p)->DeleteCycleCollectable(); } static nsDocumentEncoder * Downcast(nsISupports* s) { return static_cast<nsDocumentEncoder *>(static_cast<nsDocumentEncoder*>(s)); } static nsISupports * Upcast(nsDocumentEncoder* p) { return static_cast<nsISupports *>(static_cast<nsDocumentEncoder*>(p)); } template < typename T> friend nsISupports* ToSupports(T* p, cycleCollection * dummy); virtual void Unlink(void* p) override; static constexpr nsXPCOMCycleCollectionParticipant* GetParticipant() { return &nsDocumentEncoder::_cycleCollectorGlobal; } }; virtual void CheckForRightParticipant() { nsXPCOMCycleCollectionParticipant * p; CallQueryInterface(this, &p); do { static_assert( mozilla ::detail::AssertionConditionType<decltype(p == &_cycleCollectorGlobal )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(p == &_cycleCollectorGlobal))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("p == &_cycleCollectorGlobal" " (" "nsDocumentEncoder" " should QI to its own CC participant" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/serializers/nsDocumentEncoder.cpp" , 240); AnnotateMozCrashReason("MOZ_ASSERT" "(" "p == &_cycleCollectorGlobal" ") (" "nsDocumentEncoder" " should QI to its own CC participant" ")"); do { *((volatile int*)__null) = 240; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } static cycleCollection _cycleCollectorGlobal; virtual void BaseCycleCollectable() final {} |
| 241 | NS_DECL_NSIDOCUMENTENCODERvirtual nsresult Init(mozilla::dom::Document *aDocument, const nsAString& aMimeType, uint32_t aFlags) override; virtual nsresult NativeInit(mozilla::dom::Document *aDocument, const nsAString& aMimeType, uint32_t aFlags) override; virtual nsresult SetSelection(mozilla::dom::Selection *aSelection) override ; virtual nsresult SetRange(nsRange *aRange) override; virtual nsresult SetNode(nsINode *aNode) override; virtual nsresult SetContainerNode (nsINode *aContainer) override; virtual nsresult SetCharset(const nsACString& aCharset) override; virtual nsresult SetWrapColumn (uint32_t aWrapColumn) override; virtual nsresult GetMimeType (nsAString& aMimeType) override; virtual nsresult EncodeToStream (nsIOutputStream *aStream) override; virtual nsresult EncodeToString (nsAString& _retval) override; virtual nsresult EncodeToStringWithContext (nsAString& aContextString, nsAString& aInfoString, nsAString & _retval) override; virtual nsresult EncodeToStringWithMaxLength (uint32_t aMaxLength, nsAString& _retval) override; virtual nsresult SetNodeFixup(nsIDocumentEncoderNodeFixup *aFixup) override ; |
| 242 | |
| 243 | protected: |
| 244 | virtual ~nsDocumentEncoder(); |
| 245 | |
| 246 | void Initialize(bool aClearCachedSerializer = true, |
| 247 | bool aAllowCrossShadowBoundary = false); |
| 248 | |
| 249 | /** |
| 250 | * @param aMaxLength As described at |
| 251 | * `nsIDocumentEncodder.encodeToStringWithMaxLength`. |
| 252 | */ |
| 253 | nsresult SerializeDependingOnScope(uint32_t aMaxLength); |
| 254 | |
| 255 | nsresult SerializeSelection(); |
| 256 | |
| 257 | nsresult SerializeNode(); |
| 258 | |
| 259 | /** |
| 260 | * @param aMaxLength As described at |
| 261 | * `nsIDocumentEncodder.encodeToStringWithMaxLength`. |
| 262 | */ |
| 263 | nsresult SerializeWholeDocument(uint32_t aMaxLength); |
| 264 | |
| 265 | /** |
| 266 | * @param aFlags multiple of the flags defined in nsIDocumentEncoder.idl.o |
| 267 | */ |
| 268 | static bool IsInvisibleNodeAndShouldBeSkipped(const nsINode& aNode, |
| 269 | const uint32_t aFlags) { |
| 270 | if (aFlags & SkipInvisibleContent) { |
| 271 | // Treat the visibility of the ShadowRoot as if it were |
| 272 | // the host content. |
| 273 | // |
| 274 | // FIXME(emilio): I suspect instead of this a bunch of the GetParent() |
| 275 | // calls here should be doing GetFlattenedTreeParent, then this condition |
| 276 | // should be unreachable... |
| 277 | const nsINode* node{&aNode}; |
| 278 | if (const ShadowRoot* shadowRoot = ShadowRoot::FromNode(node)) { |
| 279 | node = shadowRoot->GetHost(); |
| 280 | } |
| 281 | |
| 282 | if (node->IsContent()) { |
| 283 | nsIFrame* frame = node->AsContent()->GetPrimaryFrame(); |
| 284 | if (!frame) { |
| 285 | if (node->IsElement() && node->AsElement()->IsDisplayContents()) { |
| 286 | return false; |
| 287 | } |
| 288 | if (node->IsText()) { |
| 289 | // We have already checked that our parent is visible. |
| 290 | // |
| 291 | // FIXME(emilio): Text not assigned to a <slot> in Shadow DOM should |
| 292 | // probably return false... |
| 293 | return false; |
| 294 | } |
| 295 | if (node->IsHTMLElement(nsGkAtoms::rp)) { |
| 296 | // Ruby parentheses are part of ruby structure, hence |
| 297 | // shouldn't be stripped out even if it is not displayed. |
| 298 | return false; |
| 299 | } |
| 300 | return true; |
| 301 | } |
| 302 | if (node->IsText() && |
| 303 | (!frame->StyleVisibility()->IsVisible() || |
| 304 | frame->IsHiddenByContentVisibilityOnAnyAncestor())) { |
| 305 | return true; |
| 306 | } |
| 307 | } |
| 308 | } |
| 309 | return false; |
| 310 | } |
| 311 | |
| 312 | void ReleaseDocumentReferenceAndInitialize(bool aClearCachedSerializer); |
| 313 | |
| 314 | class MOZ_STACK_CLASS AutoReleaseDocumentIfNeeded final { |
| 315 | public: |
| 316 | explicit AutoReleaseDocumentIfNeeded(nsDocumentEncoder* aEncoder) |
| 317 | : mEncoder(aEncoder) {} |
| 318 | |
| 319 | ~AutoReleaseDocumentIfNeeded() { |
| 320 | if (mEncoder->mFlags & RequiresReinitAfterOutput) { |
| 321 | const bool clearCachedSerializer = false; |
| 322 | mEncoder->ReleaseDocumentReferenceAndInitialize(clearCachedSerializer); |
| 323 | } |
| 324 | } |
| 325 | |
| 326 | private: |
| 327 | nsDocumentEncoder* mEncoder; |
| 328 | }; |
| 329 | |
| 330 | nsCOMPtr<Document> mDocument; |
| 331 | EncodingScope mEncodingScope; |
| 332 | nsCOMPtr<nsIContentSerializer> mSerializer; |
| 333 | |
| 334 | Maybe<TextStreamer> mTextStreamer; |
| 335 | nsCOMPtr<nsIDocumentEncoderNodeFixup> mNodeFixup; |
| 336 | |
| 337 | nsString mMimeType; |
| 338 | const Encoding* mEncoding; |
| 339 | // Multiple of the flags defined in nsIDocumentEncoder.idl. |
| 340 | uint32_t mFlags; |
| 341 | uint32_t mWrapColumn; |
| 342 | // Whether the serializer cares about being notified to scan elements to |
| 343 | // keep track of whether they are preformatted. This stores the out |
| 344 | // argument of nsIContentSerializer::Init(). |
| 345 | bool mNeedsPreformatScanning; |
| 346 | bool mIsCopying; // Set to true only while copying |
| 347 | RefPtr<StringBuffer> mCachedBuffer; |
| 348 | |
| 349 | class NodeSerializer { |
| 350 | public: |
| 351 | /** |
| 352 | * @param aFlags multiple of the flags defined in nsIDocumentEncoder.idl. |
| 353 | */ |
| 354 | NodeSerializer(const bool& aNeedsPreformatScanning, |
| 355 | const nsCOMPtr<nsIContentSerializer>& aSerializer, |
| 356 | const uint32_t& aFlags, |
| 357 | const nsCOMPtr<nsIDocumentEncoderNodeFixup>& aNodeFixup, |
| 358 | Maybe<TextStreamer>& aTextStreamer) |
| 359 | : mNeedsPreformatScanning{aNeedsPreformatScanning}, |
| 360 | mSerializer{aSerializer}, |
| 361 | mFlags{aFlags}, |
| 362 | mNodeFixup{aNodeFixup}, |
| 363 | mTextStreamer{aTextStreamer} {} |
| 364 | |
| 365 | nsresult SerializeNodeStart(nsINode& aOriginalNode, int32_t aStartOffset, |
| 366 | int32_t aEndOffset, |
| 367 | nsINode* aFixupNode = nullptr) const; |
| 368 | |
| 369 | enum class SerializeRoot { eYes, eNo }; |
| 370 | |
| 371 | nsresult SerializeToStringRecursive(nsINode* aNode, |
| 372 | SerializeRoot aSerializeRoot, |
| 373 | uint32_t aMaxLength = 0) const; |
| 374 | |
| 375 | nsresult SerializeNodeEnd(nsINode& aOriginalNode, |
| 376 | nsINode* aFixupNode = nullptr) const; |
| 377 | |
| 378 | [[nodiscard]] nsresult SerializeTextNode(nsINode& aNode, |
| 379 | int32_t aStartOffset, |
| 380 | int32_t aEndOffset) const; |
| 381 | |
| 382 | nsresult SerializeToStringIterative(nsINode* aNode) const; |
| 383 | |
| 384 | private: |
| 385 | const bool& mNeedsPreformatScanning; |
| 386 | const nsCOMPtr<nsIContentSerializer>& mSerializer; |
| 387 | // Multiple of the flags defined in nsIDocumentEncoder.idl. |
| 388 | const uint32_t& mFlags; |
| 389 | const nsCOMPtr<nsIDocumentEncoderNodeFixup>& mNodeFixup; |
| 390 | Maybe<TextStreamer>& mTextStreamer; |
| 391 | }; |
| 392 | |
| 393 | NodeSerializer mNodeSerializer; |
| 394 | |
| 395 | const UniquePtr<RangeNodeContext> mRangeNodeContext; |
| 396 | |
| 397 | struct RangeContextSerializer final { |
| 398 | RangeContextSerializer(const RangeNodeContext& aRangeNodeContext, |
| 399 | const NodeSerializer& aNodeSerializer) |
| 400 | : mDisableContextSerialize{false}, |
| 401 | mRangeNodeContext{aRangeNodeContext}, |
| 402 | mNodeSerializer{aNodeSerializer} {} |
| 403 | |
| 404 | nsresult SerializeRangeContextStart( |
| 405 | const nsTArray<nsINode*>& aAncestorArray); |
| 406 | nsresult SerializeRangeContextEnd(); |
| 407 | |
| 408 | // Used when context has already been serialized for |
| 409 | // table cell selections (where parent is <tr>) |
| 410 | bool mDisableContextSerialize; |
| 411 | AutoTArray<AutoTArray<nsINode*, 8>, 8> mRangeContexts; |
| 412 | |
| 413 | const RangeNodeContext& mRangeNodeContext; |
| 414 | |
| 415 | private: |
| 416 | const NodeSerializer& mNodeSerializer; |
| 417 | }; |
| 418 | |
| 419 | RangeContextSerializer mRangeContextSerializer; |
| 420 | |
| 421 | struct RangeSerializer { |
| 422 | // @param aFlags multiple of the flags defined in nsIDocumentEncoder.idl. |
| 423 | RangeSerializer(const uint32_t& aFlags, |
| 424 | const NodeSerializer& aNodeSerializer, |
| 425 | RangeContextSerializer& aRangeContextSerializer) |
| 426 | : mStartRootIndex{0}, |
| 427 | mEndRootIndex{0}, |
| 428 | mHaltRangeHint{false}, |
| 429 | mFlags{aFlags}, |
| 430 | mNodeSerializer{aNodeSerializer}, |
| 431 | mRangeContextSerializer{aRangeContextSerializer} {} |
| 432 | |
| 433 | void Initialize(bool aAllowCrossShadowBoundary); |
| 434 | |
| 435 | /** |
| 436 | * @param aDepth the distance (number of `GetParent` calls) from aNode to |
| 437 | * aRange's closest common inclusive ancestor. |
| 438 | */ |
| 439 | nsresult SerializeRangeNodes(const nsRange* aRange, nsINode* aNode, |
| 440 | int32_t aDepth); |
| 441 | |
| 442 | /** |
| 443 | * Serialize aContent's children from aStartOffset to aEndOffset. |
| 444 | * |
| 445 | * @param aDepth the distance (number of `GetParent` calls) from aContent to |
| 446 | * aRange's closest common inclusive ancestor. |
| 447 | */ |
| 448 | [[nodiscard]] nsresult SerializeChildrenOfContent(nsIContent& aContent, |
| 449 | uint32_t aStartOffset, |
| 450 | uint32_t aEndOffset, |
| 451 | const nsRange* aRange, |
| 452 | int32_t aDepth); |
| 453 | |
| 454 | nsresult SerializeRangeToString(const nsRange* aRange); |
| 455 | |
| 456 | /** |
| 457 | * https://dom.spec.whatwg.org/#concept-tree-inclusive-ancestor. |
| 458 | */ |
| 459 | nsCOMPtr<nsINode> mClosestCommonInclusiveAncestorOfRange; |
| 460 | |
| 461 | /** |
| 462 | * https://dom.spec.whatwg.org/#concept-tree-inclusive-ancestor. |
| 463 | */ |
| 464 | AutoTArray<nsINode*, 8> mCommonInclusiveAncestors; |
| 465 | |
| 466 | ContextInfoDepth mContextInfoDepth; |
| 467 | |
| 468 | private: |
| 469 | struct StartAndEndContent { |
| 470 | nsCOMPtr<nsIContent> mStart; |
| 471 | nsCOMPtr<nsIContent> mEnd; |
| 472 | }; |
| 473 | |
| 474 | StartAndEndContent GetStartAndEndContentForRecursionLevel( |
| 475 | int32_t aDepth) const; |
| 476 | |
| 477 | bool HasInvisibleParentAndShouldBeSkipped(nsINode& aNode) const; |
| 478 | |
| 479 | nsresult SerializeNodePartiallyContainedInRange( |
| 480 | nsINode& aNode, nsIContent& aContent, |
| 481 | const StartAndEndContent& aStartAndEndContent, const nsRange& aRange, |
| 482 | int32_t aDepth); |
| 483 | |
| 484 | nsresult SerializeTextNode(nsINode& aNode, const nsIContent& aContent, |
| 485 | const StartAndEndContent& aStartAndEndContent, |
| 486 | const nsRange& aRange) const; |
| 487 | |
| 488 | RangeBoundariesInclusiveAncestorsAndOffsets |
| 489 | mRangeBoundariesInclusiveAncestorsAndOffsets; |
| 490 | int32_t mStartRootIndex; |
| 491 | int32_t mEndRootIndex; |
| 492 | bool mHaltRangeHint; |
| 493 | |
| 494 | // Multiple of the flags defined in nsIDocumentEncoder.idl. |
| 495 | const uint32_t& mFlags; |
| 496 | |
| 497 | const NodeSerializer& mNodeSerializer; |
| 498 | RangeContextSerializer& mRangeContextSerializer; |
| 499 | |
| 500 | bool mAllowCrossShadowBoundary = false; |
| 501 | }; |
| 502 | |
| 503 | RangeSerializer mRangeSerializer; |
| 504 | }; |
| 505 | |
| 506 | void nsDocumentEncoder::RangeSerializer::Initialize( |
| 507 | bool aAllowCrossShadowBoundary) { |
| 508 | mContextInfoDepth = {}; |
| 509 | mStartRootIndex = 0; |
| 510 | mEndRootIndex = 0; |
| 511 | mHaltRangeHint = false; |
| 512 | mClosestCommonInclusiveAncestorOfRange = nullptr; |
| 513 | mRangeBoundariesInclusiveAncestorsAndOffsets = {}; |
| 514 | mAllowCrossShadowBoundary = aAllowCrossShadowBoundary; |
| 515 | } |
| 516 | |
| 517 | NS_IMPL_CYCLE_COLLECTING_ADDREF(nsDocumentEncoder)MozExternalRefCountType nsDocumentEncoder::AddRef(void) { static_assert (!std::is_destructible_v<nsDocumentEncoder>, "Reference-counted class " "nsDocumentEncoder" " 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/dom/serializers/nsDocumentEncoder.cpp" , 517); AnnotateMozCrashReason("MOZ_ASSERT" "(" "int32_t(mRefCnt) >= 0" ") (" "illegal refcnt" ")"); do { *((volatile int*)__null) = 517; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); _mOwningThread.AssertOwnership("nsDocumentEncoder" " not thread-safe"); nsISupports* base = nsDocumentEncoder:: cycleCollection::Upcast(this); nsrefcnt count = mRefCnt.incr( base); NS_LogAddRef((this), (count), ("nsDocumentEncoder"), ( uint32_t)(sizeof(*this))); return count; } |
| 518 | NS_IMPL_CYCLE_COLLECTING_RELEASE_WITH_LAST_RELEASE(MozExternalRefCountType nsDocumentEncoder::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/dom/serializers/nsDocumentEncoder.cpp" , 519); AnnotateMozCrashReason("MOZ_ASSERT" "(" "int32_t(mRefCnt) > 0" ") (" "dup release" ")"); do { *((volatile int*)__null) = 519 ; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); _mOwningThread.AssertOwnership("nsDocumentEncoder" " not thread-safe" ); bool shouldDelete = false; nsISupports* base = nsDocumentEncoder ::cycleCollection::Upcast(this); nsrefcnt count = mRefCnt.decr (base, &shouldDelete); NS_LogRelease((this), (count), ("nsDocumentEncoder" )); if (count == 0) { mRefCnt.incr(base); ReleaseDocumentReferenceAndInitialize (true); mRefCnt.decr(base); if (shouldDelete) { mRefCnt.stabilizeForDeletion (); DeleteCycleCollectable(); } } return count; } void nsDocumentEncoder ::DeleteCycleCollectable(void) { delete this; } |
| 519 | nsDocumentEncoder, ReleaseDocumentReferenceAndInitialize(true))MozExternalRefCountType nsDocumentEncoder::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/dom/serializers/nsDocumentEncoder.cpp" , 519); AnnotateMozCrashReason("MOZ_ASSERT" "(" "int32_t(mRefCnt) > 0" ") (" "dup release" ")"); do { *((volatile int*)__null) = 519 ; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); _mOwningThread.AssertOwnership("nsDocumentEncoder" " not thread-safe" ); bool shouldDelete = false; nsISupports* base = nsDocumentEncoder ::cycleCollection::Upcast(this); nsrefcnt count = mRefCnt.decr (base, &shouldDelete); NS_LogRelease((this), (count), ("nsDocumentEncoder" )); if (count == 0) { mRefCnt.incr(base); ReleaseDocumentReferenceAndInitialize (true); mRefCnt.decr(base); if (shouldDelete) { mRefCnt.stabilizeForDeletion (); DeleteCycleCollectable(); } } return count; } void nsDocumentEncoder ::DeleteCycleCollectable(void) { delete this; } |
| 520 | |
| 521 | NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsDocumentEncoder)nsresult nsDocumentEncoder::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/dom/serializers/nsDocumentEncoder.cpp" , 521); MOZ_PretendNoReturn(); } } while (0); nsISupports* foundInterface ; if (TopThreeWordsEquals( aIID, (nsXPCOMCycleCollectionParticipant ::COMTypeInfo<nsXPCOMCycleCollectionParticipant, void>:: kIID), (nsCycleCollectionISupports::COMTypeInfo<nsCycleCollectionISupports , void>::kIID)) && (LowWordEquals(aIID, (nsXPCOMCycleCollectionParticipant ::COMTypeInfo<nsXPCOMCycleCollectionParticipant, void>:: kIID)) || LowWordEquals(aIID, (nsCycleCollectionISupports::COMTypeInfo <nsCycleCollectionISupports, void>::kIID)))) { if (LowWordEquals (aIID, (nsXPCOMCycleCollectionParticipant::COMTypeInfo<nsXPCOMCycleCollectionParticipant , void>::kIID))) { *aInstancePtr = nsDocumentEncoder::cycleCollection ::GetParticipant(); return NS_OK; } if (LowWordEquals(aIID, ( nsCycleCollectionISupports::COMTypeInfo<nsCycleCollectionISupports , void>::kIID))) { *aInstancePtr = nsDocumentEncoder::cycleCollection ::Upcast(this); return NS_OK; } foundInterface = nullptr; } else |
| 522 | NS_INTERFACE_MAP_ENTRY(nsIDocumentEncoder)if (aIID.Equals(mozilla::detail::kImplementedIID<std::remove_reference_t <decltype(*this)>, nsIDocumentEncoder>)) foundInterface = static_cast<nsIDocumentEncoder*>(this); else |
| 523 | NS_INTERFACE_MAP_ENTRY(nsISupports)if (aIID.Equals(mozilla::detail::kImplementedIID<std::remove_reference_t <decltype(*this)>, nsISupports>)) foundInterface = static_cast <nsISupports*>(this); else |
| 524 | NS_INTERFACE_MAP_ENDfoundInterface = 0; nsresult status; if (!foundInterface) { do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aIID.Equals((nsISupports::COMTypeInfo<nsISupports , void>::kIID)))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!aIID.Equals((nsISupports::COMTypeInfo <nsISupports, void>::kIID))))), 0))) { do { } while (false ); MOZ_ReportAssertionFailure("!aIID.Equals((nsISupports::COMTypeInfo<nsISupports, void>::kIID))" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/serializers/nsDocumentEncoder.cpp" , 524); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aIID.Equals((nsISupports::COMTypeInfo<nsISupports, void>::kIID))" ")"); do { *((volatile int*)__null) = 524; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); status = NS_NOINTERFACE ; } else { (foundInterface)->AddRef(); status = NS_OK; } * aInstancePtr = foundInterface; return status; } |
| 525 | |
| 526 | NS_IMPL_CYCLE_COLLECTION(nsDocumentEncoder::cycleCollection nsDocumentEncoder::_cycleCollectorGlobal ; void nsDocumentEncoder::cycleCollection::Unlink(void* p) { nsDocumentEncoder * tmp = DowncastCCParticipant<nsDocumentEncoder>(p); ImplCycleCollectionUnlink (tmp->mDocument); ImplCycleCollectionUnlink(tmp->mEncodingScope .mSelection); ImplCycleCollectionUnlink(tmp->mEncodingScope .mRange); ImplCycleCollectionUnlink(tmp->mEncodingScope.mNode ); ImplCycleCollectionUnlink(tmp->mSerializer); ImplCycleCollectionUnlink (tmp->mRangeSerializer.mClosestCommonInclusiveAncestorOfRange ); (void)tmp; } nsresult nsDocumentEncoder::cycleCollection:: TraverseNative( void* p, nsCycleCollectionTraversalCallback& cb) { nsDocumentEncoder* tmp = DowncastCCParticipant<nsDocumentEncoder >(p); cb.DescribeRefCountedNode(tmp->mRefCnt.get(), "nsDocumentEncoder" ); ImplCycleCollectionTraverse(cb, tmp->mDocument, "mDocument" , 0); ImplCycleCollectionTraverse(cb, tmp->mEncodingScope. mSelection, "mEncodingScope.mSelection", 0); ImplCycleCollectionTraverse (cb, tmp->mEncodingScope.mRange, "mEncodingScope.mRange", 0 ); ImplCycleCollectionTraverse(cb, tmp->mEncodingScope.mNode , "mEncodingScope.mNode", 0); ImplCycleCollectionTraverse(cb, tmp->mSerializer, "mSerializer", 0); ImplCycleCollectionTraverse (cb, tmp->mRangeSerializer.mClosestCommonInclusiveAncestorOfRange , "mRangeSerializer.mClosestCommonInclusiveAncestorOfRange", 0 ); (void)tmp; return NS_OK; } |
| 527 | nsDocumentEncoder, mDocument, mEncodingScope.mSelection,nsDocumentEncoder::cycleCollection nsDocumentEncoder::_cycleCollectorGlobal ; void nsDocumentEncoder::cycleCollection::Unlink(void* p) { nsDocumentEncoder * tmp = DowncastCCParticipant<nsDocumentEncoder>(p); ImplCycleCollectionUnlink (tmp->mDocument); ImplCycleCollectionUnlink(tmp->mEncodingScope .mSelection); ImplCycleCollectionUnlink(tmp->mEncodingScope .mRange); ImplCycleCollectionUnlink(tmp->mEncodingScope.mNode ); ImplCycleCollectionUnlink(tmp->mSerializer); ImplCycleCollectionUnlink (tmp->mRangeSerializer.mClosestCommonInclusiveAncestorOfRange ); (void)tmp; } nsresult nsDocumentEncoder::cycleCollection:: TraverseNative( void* p, nsCycleCollectionTraversalCallback& cb) { nsDocumentEncoder* tmp = DowncastCCParticipant<nsDocumentEncoder >(p); cb.DescribeRefCountedNode(tmp->mRefCnt.get(), "nsDocumentEncoder" ); ImplCycleCollectionTraverse(cb, tmp->mDocument, "mDocument" , 0); ImplCycleCollectionTraverse(cb, tmp->mEncodingScope. mSelection, "mEncodingScope.mSelection", 0); ImplCycleCollectionTraverse (cb, tmp->mEncodingScope.mRange, "mEncodingScope.mRange", 0 ); ImplCycleCollectionTraverse(cb, tmp->mEncodingScope.mNode , "mEncodingScope.mNode", 0); ImplCycleCollectionTraverse(cb, tmp->mSerializer, "mSerializer", 0); ImplCycleCollectionTraverse (cb, tmp->mRangeSerializer.mClosestCommonInclusiveAncestorOfRange , "mRangeSerializer.mClosestCommonInclusiveAncestorOfRange", 0 ); (void)tmp; return NS_OK; } |
| 528 | mEncodingScope.mRange, mEncodingScope.mNode, mSerializer,nsDocumentEncoder::cycleCollection nsDocumentEncoder::_cycleCollectorGlobal ; void nsDocumentEncoder::cycleCollection::Unlink(void* p) { nsDocumentEncoder * tmp = DowncastCCParticipant<nsDocumentEncoder>(p); ImplCycleCollectionUnlink (tmp->mDocument); ImplCycleCollectionUnlink(tmp->mEncodingScope .mSelection); ImplCycleCollectionUnlink(tmp->mEncodingScope .mRange); ImplCycleCollectionUnlink(tmp->mEncodingScope.mNode ); ImplCycleCollectionUnlink(tmp->mSerializer); ImplCycleCollectionUnlink (tmp->mRangeSerializer.mClosestCommonInclusiveAncestorOfRange ); (void)tmp; } nsresult nsDocumentEncoder::cycleCollection:: TraverseNative( void* p, nsCycleCollectionTraversalCallback& cb) { nsDocumentEncoder* tmp = DowncastCCParticipant<nsDocumentEncoder >(p); cb.DescribeRefCountedNode(tmp->mRefCnt.get(), "nsDocumentEncoder" ); ImplCycleCollectionTraverse(cb, tmp->mDocument, "mDocument" , 0); ImplCycleCollectionTraverse(cb, tmp->mEncodingScope. mSelection, "mEncodingScope.mSelection", 0); ImplCycleCollectionTraverse (cb, tmp->mEncodingScope.mRange, "mEncodingScope.mRange", 0 ); ImplCycleCollectionTraverse(cb, tmp->mEncodingScope.mNode , "mEncodingScope.mNode", 0); ImplCycleCollectionTraverse(cb, tmp->mSerializer, "mSerializer", 0); ImplCycleCollectionTraverse (cb, tmp->mRangeSerializer.mClosestCommonInclusiveAncestorOfRange , "mRangeSerializer.mClosestCommonInclusiveAncestorOfRange", 0 ); (void)tmp; return NS_OK; } |
| 529 | mRangeSerializer.mClosestCommonInclusiveAncestorOfRange)nsDocumentEncoder::cycleCollection nsDocumentEncoder::_cycleCollectorGlobal ; void nsDocumentEncoder::cycleCollection::Unlink(void* p) { nsDocumentEncoder * tmp = DowncastCCParticipant<nsDocumentEncoder>(p); ImplCycleCollectionUnlink (tmp->mDocument); ImplCycleCollectionUnlink(tmp->mEncodingScope .mSelection); ImplCycleCollectionUnlink(tmp->mEncodingScope .mRange); ImplCycleCollectionUnlink(tmp->mEncodingScope.mNode ); ImplCycleCollectionUnlink(tmp->mSerializer); ImplCycleCollectionUnlink (tmp->mRangeSerializer.mClosestCommonInclusiveAncestorOfRange ); (void)tmp; } nsresult nsDocumentEncoder::cycleCollection:: TraverseNative( void* p, nsCycleCollectionTraversalCallback& cb) { nsDocumentEncoder* tmp = DowncastCCParticipant<nsDocumentEncoder >(p); cb.DescribeRefCountedNode(tmp->mRefCnt.get(), "nsDocumentEncoder" ); ImplCycleCollectionTraverse(cb, tmp->mDocument, "mDocument" , 0); ImplCycleCollectionTraverse(cb, tmp->mEncodingScope. mSelection, "mEncodingScope.mSelection", 0); ImplCycleCollectionTraverse (cb, tmp->mEncodingScope.mRange, "mEncodingScope.mRange", 0 ); ImplCycleCollectionTraverse(cb, tmp->mEncodingScope.mNode , "mEncodingScope.mNode", 0); ImplCycleCollectionTraverse(cb, tmp->mSerializer, "mSerializer", 0); ImplCycleCollectionTraverse (cb, tmp->mRangeSerializer.mClosestCommonInclusiveAncestorOfRange , "mRangeSerializer.mClosestCommonInclusiveAncestorOfRange", 0 ); (void)tmp; return NS_OK; } |
| 530 | |
| 531 | nsDocumentEncoder::nsDocumentEncoder( |
| 532 | UniquePtr<RangeNodeContext> aRangeNodeContext) |
| 533 | : mEncoding(nullptr), |
| 534 | mIsCopying(false), |
| 535 | mCachedBuffer(nullptr), |
| 536 | mNodeSerializer(mNeedsPreformatScanning, mSerializer, mFlags, mNodeFixup, |
| 537 | mTextStreamer), |
| 538 | mRangeNodeContext(std::move(aRangeNodeContext)), |
| 539 | mRangeContextSerializer(*mRangeNodeContext, mNodeSerializer), |
| 540 | mRangeSerializer(mFlags, mNodeSerializer, mRangeContextSerializer) { |
| 541 | MOZ_ASSERT(mRangeNodeContext)do { static_assert( mozilla::detail::AssertionConditionType< decltype(mRangeNodeContext)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mRangeNodeContext))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("mRangeNodeContext" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/serializers/nsDocumentEncoder.cpp" , 541); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mRangeNodeContext" ")"); do { *((volatile int*)__null) = 541; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 542 | |
| 543 | Initialize(); |
| 544 | mMimeType.AssignLiteral("text/plain"); |
| 545 | } |
| 546 | |
| 547 | nsDocumentEncoder::nsDocumentEncoder() |
| 548 | : nsDocumentEncoder(MakeUnique<RangeNodeContext>()) {} |
| 549 | |
| 550 | void nsDocumentEncoder::Initialize(bool aClearCachedSerializer, |
| 551 | bool aAllowCrossShadowBoundary) { |
| 552 | mFlags = 0; |
| 553 | mWrapColumn = 72; |
| 554 | mRangeSerializer.Initialize(aAllowCrossShadowBoundary); |
| 555 | mNeedsPreformatScanning = false; |
| 556 | mRangeContextSerializer.mDisableContextSerialize = false; |
| 557 | mEncodingScope = {}; |
| 558 | mNodeFixup = nullptr; |
| 559 | if (aClearCachedSerializer) { |
| 560 | mSerializer = nullptr; |
| 561 | } |
| 562 | } |
| 563 | |
| 564 | static bool ParentIsTR(nsIContent* aContent) { |
| 565 | mozilla::dom::Element* parent = aContent->GetParentElement(); |
| 566 | if (!parent) { |
| 567 | return false; |
| 568 | } |
| 569 | return parent->IsHTMLElement(nsGkAtoms::tr); |
| 570 | } |
| 571 | |
| 572 | nsresult nsDocumentEncoder::SerializeDependingOnScope(uint32_t aMaxLength) { |
| 573 | nsresult rv = NS_OK; |
| 574 | if (mEncodingScope.mSelection) { |
| 575 | rv = SerializeSelection(); |
| 576 | } else if (nsRange* range = mEncodingScope.mRange) { |
| 577 | rv = mRangeSerializer.SerializeRangeToString(range); |
| 578 | } else if (mEncodingScope.mNode) { |
| 579 | rv = SerializeNode(); |
| 580 | } else { |
| 581 | rv = SerializeWholeDocument(aMaxLength); |
| 582 | } |
| 583 | |
| 584 | mEncodingScope = {}; |
| 585 | |
| 586 | return rv; |
| 587 | } |
| 588 | |
| 589 | nsresult nsDocumentEncoder::SerializeSelection() { |
| 590 | NS_ENSURE_TRUE(mEncodingScope.mSelection, NS_ERROR_FAILURE)do { if ((__builtin_expect(!!(!(mEncodingScope.mSelection)), 0 ))) { NS_DebugBreak(NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "mEncodingScope.mSelection" ") failed", nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/dom/serializers/nsDocumentEncoder.cpp" , 590); return NS_ERROR_FAILURE; } } while (false); |
| 591 | |
| 592 | nsresult rv = NS_OK; |
| 593 | const Selection* selection = mEncodingScope.mSelection; |
| 594 | nsCOMPtr<nsINode> node; |
| 595 | nsCOMPtr<nsINode> prevNode; |
| 596 | uint32_t firstRangeStartDepth = 0; |
| 597 | const uint32_t rangeCount = selection->RangeCount(); |
| 598 | for (const uint32_t i : IntegerRange(rangeCount)) { |
| 599 | MOZ_ASSERT(selection->RangeCount() == rangeCount)do { static_assert( mozilla::detail::AssertionConditionType< decltype(selection->RangeCount() == rangeCount)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(selection->RangeCount() == rangeCount))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("selection->RangeCount() == rangeCount" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/serializers/nsDocumentEncoder.cpp" , 599); AnnotateMozCrashReason("MOZ_ASSERT" "(" "selection->RangeCount() == rangeCount" ")"); do { *((volatile int*)__null) = 599; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 600 | RefPtr<const nsRange> range = selection->GetRangeAt(i); |
| 601 | |
| 602 | // Bug 236546: newlines not added when copying table cells into clipboard |
| 603 | // Each selected cell shows up as a range containing a row with a single |
| 604 | // cell get the row, compare it to previous row and emit </tr><tr> as |
| 605 | // needed Bug 137450: Problem copying/pasting a table from a web page to |
| 606 | // Excel. Each separate block of <tr></tr> produced above will be wrapped |
| 607 | // by the immediate context. This assumes that you can't select cells that |
| 608 | // are multiple selections from two tables simultaneously. |
| 609 | node = ShadowDOMSelectionHelpers::GetStartContainer( |
| 610 | range, mFlags & nsIDocumentEncoder::AllowCrossShadowBoundary); |
| 611 | NS_ENSURE_TRUE(node, NS_ERROR_FAILURE)do { if ((__builtin_expect(!!(!(node)), 0))) { NS_DebugBreak( NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "node" ") failed", nullptr , "/var/lib/jenkins/workspace/firefox-scan-build/dom/serializers/nsDocumentEncoder.cpp" , 611); return NS_ERROR_FAILURE; } } while (false); |
| 612 | if (node != prevNode) { |
| 613 | if (prevNode) { |
| 614 | rv = mNodeSerializer.SerializeNodeEnd(*prevNode); |
| 615 | 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/dom/serializers/nsDocumentEncoder.cpp" , 615); return rv; } } while (false); |
| 616 | } |
| 617 | nsCOMPtr<nsIContent> content = nsIContent::FromNodeOrNull(node); |
| 618 | if (content && content->IsHTMLElement(nsGkAtoms::tr) && |
| 619 | !ParentIsTR(content)) { |
| 620 | if (!prevNode) { |
| 621 | // Went from a non-<tr> to a <tr> |
| 622 | mRangeSerializer.mCommonInclusiveAncestors.Clear(); |
| 623 | nsContentUtils::GetInclusiveAncestors( |
| 624 | node->GetParentNode(), |
| 625 | mRangeSerializer.mCommonInclusiveAncestors); |
| 626 | rv = mRangeContextSerializer.SerializeRangeContextStart( |
| 627 | mRangeSerializer.mCommonInclusiveAncestors); |
| 628 | 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/dom/serializers/nsDocumentEncoder.cpp" , 628); return rv; } } while (false); |
| 629 | // Don't let SerializeRangeToString serialize the context again |
| 630 | mRangeContextSerializer.mDisableContextSerialize = true; |
| 631 | } |
| 632 | |
| 633 | rv = mNodeSerializer.SerializeNodeStart(*node, 0, -1); |
| 634 | 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/dom/serializers/nsDocumentEncoder.cpp" , 634); return rv; } } while (false); |
| 635 | prevNode = node; |
| 636 | } else if (prevNode) { |
| 637 | // Went from a <tr> to a non-<tr> |
| 638 | mRangeContextSerializer.mDisableContextSerialize = false; |
| 639 | |
| 640 | // `mCommonInclusiveAncestors` is used in `EncodeToStringWithContext` |
| 641 | // too. Update it here to mimic the old behavior. |
| 642 | mRangeSerializer.mCommonInclusiveAncestors.Clear(); |
| 643 | nsContentUtils::GetInclusiveAncestors( |
| 644 | prevNode->GetParentNode(), |
| 645 | mRangeSerializer.mCommonInclusiveAncestors); |
| 646 | |
| 647 | rv = mRangeContextSerializer.SerializeRangeContextEnd(); |
| 648 | 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/dom/serializers/nsDocumentEncoder.cpp" , 648); return rv; } } while (false); |
| 649 | prevNode = nullptr; |
| 650 | } |
| 651 | } |
| 652 | |
| 653 | rv = mRangeSerializer.SerializeRangeToString(range); |
| 654 | 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/dom/serializers/nsDocumentEncoder.cpp" , 654); return rv; } } while (false); |
| 655 | if (i == 0) { |
| 656 | firstRangeStartDepth = mRangeSerializer.mContextInfoDepth.mStart; |
| 657 | } |
| 658 | } |
| 659 | mRangeSerializer.mContextInfoDepth.mStart = firstRangeStartDepth; |
| 660 | |
| 661 | if (prevNode) { |
| 662 | rv = mNodeSerializer.SerializeNodeEnd(*prevNode); |
| 663 | 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/dom/serializers/nsDocumentEncoder.cpp" , 663); return rv; } } while (false); |
| 664 | mRangeContextSerializer.mDisableContextSerialize = false; |
| 665 | |
| 666 | // `mCommonInclusiveAncestors` is used in `EncodeToStringWithContext` |
| 667 | // too. Update it here to mimic the old behavior. |
| 668 | mRangeSerializer.mCommonInclusiveAncestors.Clear(); |
| 669 | nsContentUtils::GetInclusiveAncestors( |
| 670 | prevNode->GetParentNode(), mRangeSerializer.mCommonInclusiveAncestors); |
| 671 | |
| 672 | rv = mRangeContextSerializer.SerializeRangeContextEnd(); |
| 673 | 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/dom/serializers/nsDocumentEncoder.cpp" , 673); return rv; } } while (false); |
| 674 | } |
| 675 | |
| 676 | // Just to be safe |
| 677 | mRangeContextSerializer.mDisableContextSerialize = false; |
| 678 | |
| 679 | return rv; |
| 680 | } |
| 681 | |
| 682 | nsresult nsDocumentEncoder::SerializeNode() { |
| 683 | NS_ENSURE_TRUE(mEncodingScope.mNode, NS_ERROR_FAILURE)do { if ((__builtin_expect(!!(!(mEncodingScope.mNode)), 0))) { NS_DebugBreak(NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "mEncodingScope.mNode" ") failed", nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/dom/serializers/nsDocumentEncoder.cpp" , 683); return NS_ERROR_FAILURE; } } while (false); |
| 684 | |
| 685 | nsresult rv = NS_OK; |
| 686 | nsINode* node = mEncodingScope.mNode; |
| 687 | const bool nodeIsContainer = mEncodingScope.mNodeIsContainer; |
| 688 | if (!mNodeFixup && !(mFlags & SkipInvisibleContent) && !mTextStreamer && |
| 689 | nodeIsContainer) { |
| 690 | rv = mNodeSerializer.SerializeToStringIterative(node); |
| 691 | } else { |
| 692 | rv = mNodeSerializer.SerializeToStringRecursive( |
| 693 | node, nodeIsContainer ? NodeSerializer::SerializeRoot::eNo |
| 694 | : NodeSerializer::SerializeRoot::eYes); |
| 695 | } |
| 696 | |
| 697 | return rv; |
| 698 | } |
| 699 | |
| 700 | nsresult nsDocumentEncoder::SerializeWholeDocument(uint32_t aMaxLength) { |
| 701 | NS_ENSURE_FALSE(mEncodingScope.mSelection, NS_ERROR_FAILURE)do { if ((__builtin_expect(!!(!(!(mEncodingScope.mSelection)) ), 0))) { NS_DebugBreak(NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "!(mEncodingScope.mSelection)" ") failed", nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/dom/serializers/nsDocumentEncoder.cpp" , 701); return NS_ERROR_FAILURE; } } while (false); |
| 702 | NS_ENSURE_FALSE(mEncodingScope.mRange, NS_ERROR_FAILURE)do { if ((__builtin_expect(!!(!(!(mEncodingScope.mRange))), 0 ))) { NS_DebugBreak(NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "!(mEncodingScope.mRange)" ") failed", nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/dom/serializers/nsDocumentEncoder.cpp" , 702); return NS_ERROR_FAILURE; } } while (false); |
| 703 | NS_ENSURE_FALSE(mEncodingScope.mNode, NS_ERROR_FAILURE)do { if ((__builtin_expect(!!(!(!(mEncodingScope.mNode))), 0) )) { NS_DebugBreak(NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "!(mEncodingScope.mNode)" ") failed", nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/dom/serializers/nsDocumentEncoder.cpp" , 703); return NS_ERROR_FAILURE; } } while (false); |
| 704 | |
| 705 | nsresult rv = mSerializer->AppendDocumentStart(mDocument); |
| 706 | 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/dom/serializers/nsDocumentEncoder.cpp" , 706); return rv; } } while (false); |
| 707 | |
| 708 | rv = mNodeSerializer.SerializeToStringRecursive( |
| 709 | mDocument, NodeSerializer::SerializeRoot::eYes, aMaxLength); |
| 710 | return rv; |
| 711 | } |
| 712 | |
| 713 | nsDocumentEncoder::~nsDocumentEncoder() = default; |
| 714 | |
| 715 | NS_IMETHODIMPnsresult |
| 716 | nsDocumentEncoder::Init(Document* aDocument, const nsAString& aMimeType, |
| 717 | uint32_t aFlags) { |
| 718 | return NativeInit(aDocument, aMimeType, aFlags); |
| 719 | } |
| 720 | |
| 721 | NS_IMETHODIMPnsresult |
| 722 | nsDocumentEncoder::NativeInit(Document* aDocument, const nsAString& aMimeType, |
| 723 | uint32_t aFlags) { |
| 724 | if (!aDocument) return NS_ERROR_INVALID_ARG; |
| 725 | |
| 726 | Initialize(!mMimeType.Equals(aMimeType), |
| 727 | aFlags & nsIDocumentEncoder::AllowCrossShadowBoundary); |
| 728 | |
| 729 | mDocument = aDocument; |
| 730 | |
| 731 | mMimeType = aMimeType; |
| 732 | |
| 733 | mFlags = aFlags; |
| 734 | mIsCopying = false; |
| 735 | |
| 736 | return NS_OK; |
| 737 | } |
| 738 | |
| 739 | NS_IMETHODIMPnsresult |
| 740 | nsDocumentEncoder::SetWrapColumn(uint32_t aWC) { |
| 741 | mWrapColumn = aWC; |
| 742 | return NS_OK; |
| 743 | } |
| 744 | |
| 745 | NS_IMETHODIMPnsresult |
| 746 | nsDocumentEncoder::SetSelection(Selection* aSelection) { |
| 747 | mEncodingScope.mSelection = aSelection; |
| 748 | return NS_OK; |
| 749 | } |
| 750 | |
| 751 | NS_IMETHODIMPnsresult |
| 752 | nsDocumentEncoder::SetRange(nsRange* aRange) { |
| 753 | mEncodingScope.mRange = aRange; |
| 754 | return NS_OK; |
| 755 | } |
| 756 | |
| 757 | NS_IMETHODIMPnsresult |
| 758 | nsDocumentEncoder::SetNode(nsINode* aNode) { |
| 759 | mEncodingScope.mNodeIsContainer = false; |
| 760 | mEncodingScope.mNode = aNode; |
| 761 | return NS_OK; |
| 762 | } |
| 763 | |
| 764 | NS_IMETHODIMPnsresult |
| 765 | nsDocumentEncoder::SetContainerNode(nsINode* aContainer) { |
| 766 | mEncodingScope.mNodeIsContainer = true; |
| 767 | mEncodingScope.mNode = aContainer; |
| 768 | return NS_OK; |
| 769 | } |
| 770 | |
| 771 | NS_IMETHODIMPnsresult |
| 772 | nsDocumentEncoder::SetCharset(const nsACString& aCharset) { |
| 773 | const Encoding* encoding = Encoding::ForLabel(aCharset); |
| 774 | if (!encoding) { |
| 775 | return NS_ERROR_UCONV_NOCONV; |
| 776 | } |
| 777 | mEncoding = encoding->OutputEncoding(); |
| 778 | return NS_OK; |
| 779 | } |
| 780 | |
| 781 | NS_IMETHODIMPnsresult |
| 782 | nsDocumentEncoder::GetMimeType(nsAString& aMimeType) { |
| 783 | aMimeType = mMimeType; |
| 784 | return NS_OK; |
| 785 | } |
| 786 | |
| 787 | class FixupNodeDeterminer { |
| 788 | public: |
| 789 | FixupNodeDeterminer(nsIDocumentEncoderNodeFixup* aNodeFixup, |
| 790 | nsINode* aFixupNode, nsINode& aOriginalNode) |
| 791 | : mIsSerializationOfFixupChildrenNeeded{false}, |
| 792 | mNodeFixup(aNodeFixup), |
| 793 | mOriginalNode(aOriginalNode) { |
| 794 | if (mNodeFixup) { |
| 795 | if (aFixupNode) { |
| 796 | mFixupNode = aFixupNode; |
| 797 | } else { |
| 798 | mNodeFixup->FixupNode(&mOriginalNode, |
| 799 | &mIsSerializationOfFixupChildrenNeeded, |
| 800 | getter_AddRefs(mFixupNode)); |
| 801 | } |
| 802 | } |
| 803 | } |
| 804 | |
| 805 | bool IsSerializationOfFixupChildrenNeeded() const { |
| 806 | return mIsSerializationOfFixupChildrenNeeded; |
| 807 | } |
| 808 | |
| 809 | /** |
| 810 | * @return The fixup node, if available, otherwise the original node. The |
| 811 | * former is kept alive by this object. |
| 812 | */ |
| 813 | nsINode& GetFixupNodeFallBackToOriginalNode() const { |
| 814 | return mFixupNode ? *mFixupNode : mOriginalNode; |
| 815 | } |
| 816 | |
| 817 | private: |
| 818 | bool mIsSerializationOfFixupChildrenNeeded; |
| 819 | nsIDocumentEncoderNodeFixup* mNodeFixup; |
| 820 | nsCOMPtr<nsINode> mFixupNode; |
| 821 | nsINode& mOriginalNode; |
| 822 | }; |
| 823 | |
| 824 | nsresult nsDocumentEncoder::NodeSerializer::SerializeNodeStart( |
| 825 | nsINode& aOriginalNode, int32_t aStartOffset, int32_t aEndOffset, |
| 826 | nsINode* aFixupNode) const { |
| 827 | if (mNeedsPreformatScanning) { |
| 828 | if (aOriginalNode.IsElement()) { |
| 829 | mSerializer->ScanElementForPreformat(aOriginalNode.AsElement()); |
| 830 | } else if (aOriginalNode.IsText()) { |
| 831 | const nsCOMPtr<nsINode> parent = aOriginalNode.GetParent(); |
| 832 | if (parent && parent->IsElement()) { |
| 833 | mSerializer->ScanElementForPreformat(parent->AsElement()); |
| 834 | } |
| 835 | } |
| 836 | } |
| 837 | |
| 838 | if (IsInvisibleNodeAndShouldBeSkipped(aOriginalNode, mFlags)) { |
| 839 | return NS_OK; |
| 840 | } |
| 841 | |
| 842 | FixupNodeDeterminer fixupNodeDeterminer{mNodeFixup, aFixupNode, |
| 843 | aOriginalNode}; |
| 844 | nsINode* node = &fixupNodeDeterminer.GetFixupNodeFallBackToOriginalNode(); |
| 845 | |
| 846 | nsresult rv = NS_OK; |
| 847 | |
| 848 | if (node->IsElement()) { |
| 849 | if ((mFlags & (nsIDocumentEncoder::OutputPreformatted | |
| 850 | nsIDocumentEncoder::OutputDropInvisibleBreak)) && |
| 851 | nsLayoutUtils::IsInvisibleBreak(node)) { |
| 852 | return rv; |
| 853 | } |
| 854 | rv = mSerializer->AppendElementStart(node->AsElement(), |
| 855 | aOriginalNode.AsElement()); |
| 856 | return rv; |
| 857 | } |
| 858 | |
| 859 | switch (node->NodeType()) { |
| 860 | case nsINode::TEXT_NODE: { |
| 861 | rv = mSerializer->AppendText(static_cast<nsIContent*>(node), aStartOffset, |
| 862 | aEndOffset); |
| 863 | break; |
| 864 | } |
| 865 | case nsINode::CDATA_SECTION_NODE: { |
| 866 | rv = mSerializer->AppendCDATASection(static_cast<nsIContent*>(node), |
| 867 | aStartOffset, aEndOffset); |
| 868 | break; |
| 869 | } |
| 870 | case nsINode::PROCESSING_INSTRUCTION_NODE: { |
| 871 | rv = mSerializer->AppendProcessingInstruction( |
| 872 | static_cast<ProcessingInstruction*>(node), aStartOffset, aEndOffset); |
| 873 | break; |
| 874 | } |
| 875 | case nsINode::COMMENT_NODE: { |
| 876 | rv = mSerializer->AppendComment(static_cast<Comment*>(node), aStartOffset, |
| 877 | aEndOffset); |
| 878 | break; |
| 879 | } |
| 880 | case nsINode::DOCUMENT_TYPE_NODE: { |
| 881 | rv = mSerializer->AppendDoctype(static_cast<DocumentType*>(node)); |
| 882 | break; |
| 883 | } |
| 884 | } |
| 885 | |
| 886 | return rv; |
| 887 | } |
| 888 | |
| 889 | nsresult nsDocumentEncoder::NodeSerializer::SerializeNodeEnd( |
| 890 | nsINode& aOriginalNode, nsINode* aFixupNode) const { |
| 891 | if (mNeedsPreformatScanning) { |
| 892 | if (aOriginalNode.IsElement()) { |
| 893 | mSerializer->ForgetElementForPreformat(aOriginalNode.AsElement()); |
| 894 | } else if (aOriginalNode.IsText()) { |
| 895 | const nsCOMPtr<nsINode> parent = aOriginalNode.GetParent(); |
| 896 | if (parent && parent->IsElement()) { |
| 897 | mSerializer->ForgetElementForPreformat(parent->AsElement()); |
| 898 | } |
| 899 | } |
| 900 | } |
| 901 | |
| 902 | if (IsInvisibleNodeAndShouldBeSkipped(aOriginalNode, mFlags)) { |
| 903 | return NS_OK; |
| 904 | } |
| 905 | |
| 906 | nsresult rv = NS_OK; |
| 907 | |
| 908 | FixupNodeDeterminer fixupNodeDeterminer{mNodeFixup, aFixupNode, |
| 909 | aOriginalNode}; |
| 910 | nsINode* node = &fixupNodeDeterminer.GetFixupNodeFallBackToOriginalNode(); |
| 911 | |
| 912 | if (node->IsElement()) { |
| 913 | rv = mSerializer->AppendElementEnd(node->AsElement(), |
| 914 | aOriginalNode.AsElement()); |
| 915 | } |
| 916 | |
| 917 | return rv; |
| 918 | } |
| 919 | |
| 920 | nsresult nsDocumentEncoder::NodeSerializer::SerializeToStringRecursive( |
| 921 | nsINode* aNode, SerializeRoot aSerializeRoot, uint32_t aMaxLength) const { |
| 922 | uint32_t outputLength{0}; |
| 923 | nsresult rv = mSerializer->GetOutputLength(outputLength); |
| 924 | 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/dom/serializers/nsDocumentEncoder.cpp" , 924); return rv; } } while (false); |
| 925 | |
| 926 | if (aMaxLength > 0 && outputLength >= aMaxLength) { |
| 927 | return NS_OK; |
| 928 | } |
| 929 | |
| 930 | NS_ENSURE_TRUE(aNode, NS_ERROR_NULL_POINTER)do { if ((__builtin_expect(!!(!(aNode)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "aNode" ") failed", nullptr , "/var/lib/jenkins/workspace/firefox-scan-build/dom/serializers/nsDocumentEncoder.cpp" , 930); return NS_ERROR_NULL_POINTER; } } while (false); |
| 931 | |
| 932 | if (IsInvisibleNodeAndShouldBeSkipped(*aNode, mFlags)) { |
| 933 | return NS_OK; |
| 934 | } |
| 935 | |
| 936 | FixupNodeDeterminer fixupNodeDeterminer{mNodeFixup, nullptr, *aNode}; |
| 937 | nsINode* maybeFixedNode = |
| 938 | &fixupNodeDeterminer.GetFixupNodeFallBackToOriginalNode(); |
| 939 | |
| 940 | if (mFlags & SkipInvisibleContent) { |
| 941 | if (aNode->IsContent()) { |
| 942 | if (nsIFrame* frame = aNode->AsContent()->GetPrimaryFrame()) { |
| 943 | if (!frame->IsSelectable(nullptr)) { |
| 944 | aSerializeRoot = SerializeRoot::eNo; |
| 945 | } |
| 946 | } |
| 947 | } |
| 948 | } |
| 949 | |
| 950 | if (aSerializeRoot == SerializeRoot::eYes) { |
| 951 | int32_t endOffset = -1; |
| 952 | if (aMaxLength > 0) { |
| 953 | MOZ_ASSERT(aMaxLength >= outputLength)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aMaxLength >= outputLength)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aMaxLength >= outputLength ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "aMaxLength >= outputLength", "/var/lib/jenkins/workspace/firefox-scan-build/dom/serializers/nsDocumentEncoder.cpp" , 953); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aMaxLength >= outputLength" ")"); do { *((volatile int*)__null) = 953; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 954 | endOffset = aMaxLength - outputLength; |
| 955 | } |
| 956 | rv = SerializeNodeStart(*aNode, 0, endOffset, maybeFixedNode); |
| 957 | 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/dom/serializers/nsDocumentEncoder.cpp" , 957); return rv; } } while (false); |
| 958 | } |
| 959 | |
| 960 | ShadowRoot* shadowRoot = ShadowDOMSelectionHelpers::GetShadowRoot( |
| 961 | aNode, mFlags & nsIDocumentEncoder::AllowCrossShadowBoundary); |
| 962 | |
| 963 | if (shadowRoot) { |
| 964 | MOZ_ASSERT(StaticPrefs::dom_shadowdom_selection_across_boundary_enabled())do { static_assert( mozilla::detail::AssertionConditionType< decltype(StaticPrefs::dom_shadowdom_selection_across_boundary_enabled ())>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(StaticPrefs::dom_shadowdom_selection_across_boundary_enabled ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("StaticPrefs::dom_shadowdom_selection_across_boundary_enabled()" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/serializers/nsDocumentEncoder.cpp" , 964); AnnotateMozCrashReason("MOZ_ASSERT" "(" "StaticPrefs::dom_shadowdom_selection_across_boundary_enabled()" ")"); do { *((volatile int*)__null) = 964; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 965 | // Serialize the ShadowRoot first when the entire node needs to be |
| 966 | // serialized. |
| 967 | SerializeToStringRecursive(shadowRoot, aSerializeRoot, aMaxLength); |
| 968 | } |
| 969 | |
| 970 | nsINode* node = fixupNodeDeterminer.IsSerializationOfFixupChildrenNeeded() |
| 971 | ? maybeFixedNode |
| 972 | : aNode; |
| 973 | |
| 974 | for (nsINode* child = node->GetFirstChildOfTemplateOrNode(); child; |
| 975 | child = child->GetNextSibling()) { |
| 976 | if (shadowRoot && |
| 977 | (!child->IsContent() || !child->AsContent()->GetAssignedSlot())) { |
| 978 | // Since this node is a shadow host, we skip the children that are not |
| 979 | // slotted because they aren't visible. |
| 980 | continue; |
| 981 | } |
| 982 | rv = SerializeToStringRecursive(child, SerializeRoot::eYes, aMaxLength); |
| 983 | 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/dom/serializers/nsDocumentEncoder.cpp" , 983); return rv; } } while (false); |
| 984 | } |
| 985 | |
| 986 | if (aSerializeRoot == SerializeRoot::eYes) { |
| 987 | rv = SerializeNodeEnd(*aNode, maybeFixedNode); |
| 988 | 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/dom/serializers/nsDocumentEncoder.cpp" , 988); return rv; } } while (false); |
| 989 | } |
| 990 | |
| 991 | if (mTextStreamer) { |
| 992 | rv = mTextStreamer->FlushIfStringLongEnough(); |
| 993 | } |
| 994 | |
| 995 | return rv; |
| 996 | } |
| 997 | |
| 998 | nsresult nsDocumentEncoder::NodeSerializer::SerializeToStringIterative( |
| 999 | nsINode* aNode) const { |
| 1000 | nsresult rv; |
| 1001 | |
| 1002 | nsINode* node = aNode->GetFirstChildOfTemplateOrNode(); |
| 1003 | while (node) { |
| 1004 | nsINode* current = node; |
| 1005 | rv = SerializeNodeStart(*current, 0, -1, current); |
| 1006 | 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/dom/serializers/nsDocumentEncoder.cpp" , 1006); return rv; } } while (false); |
| 1007 | node = current->GetFirstChildOfTemplateOrNode(); |
| 1008 | while (!node && current && current != aNode) { |
| 1009 | rv = SerializeNodeEnd(*current); |
| 1010 | 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/dom/serializers/nsDocumentEncoder.cpp" , 1010); return rv; } } while (false); |
| 1011 | // Check if we have siblings. |
| 1012 | node = current->GetNextSibling(); |
| 1013 | if (!node) { |
| 1014 | // Perhaps parent node has siblings. |
| 1015 | current = current->GetParentNode(); |
| 1016 | |
| 1017 | // Handle template element. If the parent is a template's content, |
| 1018 | // then adjust the parent to be the template element. |
| 1019 | if (current && current != aNode && current->IsDocumentFragment()) { |
| 1020 | nsIContent* host = current->AsDocumentFragment()->GetHost(); |
| 1021 | if (host && host->IsHTMLElement(nsGkAtoms::_template)) { |
| 1022 | current = host; |
| 1023 | } |
| 1024 | } |
| 1025 | } |
| 1026 | } |
| 1027 | } |
| 1028 | |
| 1029 | return NS_OK; |
| 1030 | } |
| 1031 | |
| 1032 | static bool IsTextNode(nsINode* aNode) { return aNode && aNode->IsText(); } |
| 1033 | |
| 1034 | nsresult nsDocumentEncoder::NodeSerializer::SerializeTextNode( |
| 1035 | nsINode& aNode, int32_t aStartOffset, int32_t aEndOffset) const { |
| 1036 | MOZ_ASSERT(IsTextNode(&aNode))do { static_assert( mozilla::detail::AssertionConditionType< decltype(IsTextNode(&aNode))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(IsTextNode(&aNode)))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("IsTextNode(&aNode)" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/serializers/nsDocumentEncoder.cpp" , 1036); AnnotateMozCrashReason("MOZ_ASSERT" "(" "IsTextNode(&aNode)" ")"); do { *((volatile int*)__null) = 1036; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1037 | |
| 1038 | nsresult rv = SerializeNodeStart(aNode, aStartOffset, aEndOffset); |
| 1039 | 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/dom/serializers/nsDocumentEncoder.cpp" , 1039); return rv; } } while (false); |
| 1040 | rv = SerializeNodeEnd(aNode); |
| 1041 | 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/dom/serializers/nsDocumentEncoder.cpp" , 1041); return rv; } } while (false); |
| 1042 | return rv; |
| 1043 | } |
| 1044 | |
| 1045 | nsDocumentEncoder::RangeSerializer::StartAndEndContent |
| 1046 | nsDocumentEncoder::RangeSerializer::GetStartAndEndContentForRecursionLevel( |
| 1047 | const int32_t aDepth) const { |
| 1048 | StartAndEndContent result; |
| 1049 | |
| 1050 | const auto& inclusiveAncestorsOfStart = |
| 1051 | mRangeBoundariesInclusiveAncestorsAndOffsets.mInclusiveAncestorsOfStart; |
| 1052 | const auto& inclusiveAncestorsOfEnd = |
| 1053 | mRangeBoundariesInclusiveAncestorsAndOffsets.mInclusiveAncestorsOfEnd; |
| 1054 | int32_t start = mStartRootIndex - aDepth; |
| 1055 | if (start >= 0 && (uint32_t)start <= inclusiveAncestorsOfStart.Length()) { |
| 1056 | result.mStart = inclusiveAncestorsOfStart[start]; |
| 1057 | } |
| 1058 | |
| 1059 | int32_t end = mEndRootIndex - aDepth; |
| 1060 | if (end >= 0 && (uint32_t)end <= inclusiveAncestorsOfEnd.Length()) { |
| 1061 | result.mEnd = inclusiveAncestorsOfEnd[end]; |
| 1062 | } |
| 1063 | |
| 1064 | return result; |
| 1065 | } |
| 1066 | |
| 1067 | nsresult nsDocumentEncoder::RangeSerializer::SerializeTextNode( |
| 1068 | nsINode& aNode, const nsIContent& aContent, |
| 1069 | const StartAndEndContent& aStartAndEndContent, |
| 1070 | const nsRange& aRange) const { |
| 1071 | const int32_t startOffset = (aStartAndEndContent.mStart == &aContent) |
| 1072 | ? ShadowDOMSelectionHelpers::StartOffset( |
| 1073 | &aRange, mAllowCrossShadowBoundary) |
| 1074 | : 0; |
| 1075 | const int32_t endOffset = (aStartAndEndContent.mEnd == &aContent) |
| 1076 | ? ShadowDOMSelectionHelpers::EndOffset( |
| 1077 | &aRange, mAllowCrossShadowBoundary) |
| 1078 | : -1; |
| 1079 | return mNodeSerializer.SerializeTextNode(aNode, startOffset, endOffset); |
| 1080 | } |
| 1081 | |
| 1082 | nsresult nsDocumentEncoder::RangeSerializer::SerializeRangeNodes( |
| 1083 | const nsRange* const aRange, nsINode* const aNode, const int32_t aDepth) { |
| 1084 | MOZ_ASSERT(aDepth >= 0)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aDepth >= 0)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aDepth >= 0))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aDepth >= 0" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/serializers/nsDocumentEncoder.cpp" , 1084); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aDepth >= 0" ")"); do { *((volatile int*)__null) = 1084; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1085 | MOZ_ASSERT(aRange)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aRange)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(aRange))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aRange", "/var/lib/jenkins/workspace/firefox-scan-build/dom/serializers/nsDocumentEncoder.cpp" , 1085); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aRange" ")" ); do { *((volatile int*)__null) = 1085; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1086 | |
| 1087 | nsCOMPtr<nsIContent> content = nsIContent::FromNodeOrNull(aNode); |
| 1088 | NS_ENSURE_TRUE(content, NS_ERROR_FAILURE)do { if ((__builtin_expect(!!(!(content)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "content" ") failed", nullptr , "/var/lib/jenkins/workspace/firefox-scan-build/dom/serializers/nsDocumentEncoder.cpp" , 1088); return NS_ERROR_FAILURE; } } while (false); |
| 1089 | |
| 1090 | if (nsDocumentEncoder::IsInvisibleNodeAndShouldBeSkipped(*aNode, mFlags)) { |
| 1091 | return NS_OK; |
| 1092 | } |
| 1093 | |
| 1094 | nsresult rv = NS_OK; |
| 1095 | |
| 1096 | StartAndEndContent startAndEndContent = |
| 1097 | GetStartAndEndContentForRecursionLevel(aDepth); |
| 1098 | |
| 1099 | if (startAndEndContent.mStart != content && |
| 1100 | startAndEndContent.mEnd != content) { |
| 1101 | // node is completely contained in range. Serialize the whole subtree |
| 1102 | // rooted by this node. |
| 1103 | rv = mNodeSerializer.SerializeToStringRecursive( |
| 1104 | aNode, NodeSerializer::SerializeRoot::eYes); |
| 1105 | 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/dom/serializers/nsDocumentEncoder.cpp" , 1105); return rv; } } while (false); |
| 1106 | } else { |
| 1107 | rv = SerializeNodePartiallyContainedInRange( |
| 1108 | *aNode, *content, startAndEndContent, *aRange, aDepth); |
| 1109 | if (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/dom/serializers/nsDocumentEncoder.cpp" , 1109)) { |
| 1110 | return rv; |
| 1111 | } |
| 1112 | } |
| 1113 | return NS_OK; |
| 1114 | } |
| 1115 | |
| 1116 | nsresult |
| 1117 | nsDocumentEncoder::RangeSerializer::SerializeNodePartiallyContainedInRange( |
| 1118 | nsINode& aNode, nsIContent& aContent, |
| 1119 | const StartAndEndContent& aStartAndEndContent, const nsRange& aRange, |
| 1120 | const int32_t aDepth) { |
| 1121 | // due to implementation it is impossible for text node to be both start and |
| 1122 | // end of range. We would have handled that case without getting here. |
| 1123 | // XXXsmaug What does this all mean? |
| 1124 | if (IsTextNode(&aNode)) { |
| 1125 | nsresult rv = |
| 1126 | SerializeTextNode(aNode, aContent, aStartAndEndContent, aRange); |
| 1127 | 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/dom/serializers/nsDocumentEncoder.cpp" , 1127); return rv; } } while (false); |
| 1128 | } else { |
| 1129 | if (&aNode != mClosestCommonInclusiveAncestorOfRange) { |
| 1130 | if (mRangeContextSerializer.mRangeNodeContext.IncludeInContext(aNode)) { |
| 1131 | // halt the incrementing of mContextInfoDepth. This |
| 1132 | // is so paste client will include this node in paste. |
| 1133 | mHaltRangeHint = true; |
| 1134 | } |
| 1135 | if ((aStartAndEndContent.mStart == &aContent) && !mHaltRangeHint) { |
| 1136 | ++mContextInfoDepth.mStart; |
| 1137 | } |
| 1138 | if ((aStartAndEndContent.mEnd == &aContent) && !mHaltRangeHint) { |
| 1139 | ++mContextInfoDepth.mEnd; |
| 1140 | } |
| 1141 | |
| 1142 | // serialize the start of this node |
| 1143 | nsresult rv = mNodeSerializer.SerializeNodeStart(aNode, 0, -1); |
| 1144 | 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/dom/serializers/nsDocumentEncoder.cpp" , 1144); return rv; } } while (false); |
| 1145 | } |
| 1146 | |
| 1147 | const auto& inclusiveAncestorsOffsetsOfStart = |
| 1148 | mRangeBoundariesInclusiveAncestorsAndOffsets |
| 1149 | .mInclusiveAncestorsOffsetsOfStart; |
| 1150 | const auto& inclusiveAncestorsOffsetsOfEnd = |
| 1151 | mRangeBoundariesInclusiveAncestorsAndOffsets |
| 1152 | .mInclusiveAncestorsOffsetsOfEnd; |
| 1153 | // do some calculations that will tell us which children of this |
| 1154 | // node are in the range. |
| 1155 | Maybe<uint32_t> startOffset = Some(0); |
| 1156 | Maybe<uint32_t> endOffset; |
| 1157 | if (aStartAndEndContent.mStart == &aContent && mStartRootIndex >= aDepth) { |
| 1158 | startOffset = inclusiveAncestorsOffsetsOfStart[mStartRootIndex - aDepth]; |
| 1159 | } |
| 1160 | if (aStartAndEndContent.mEnd == &aContent && mEndRootIndex >= aDepth) { |
| 1161 | endOffset = inclusiveAncestorsOffsetsOfEnd[mEndRootIndex - aDepth]; |
| 1162 | } |
| 1163 | // generated aContent will cause offset values of Nothing to be returned. |
| 1164 | if (startOffset.isNothing()) { |
| 1165 | startOffset = Some(0); |
| 1166 | } |
| 1167 | if (endOffset.isNothing()) { |
| 1168 | endOffset = Some(aContent.GetChildCount()); |
| 1169 | } else { |
| 1170 | // if we are at the "tip" of the selection, endOffset is fine. |
| 1171 | // otherwise, we need to add one. This is because of the semantics |
| 1172 | // of the offset list created by GetInclusiveAncestorsAndOffsets(). The |
| 1173 | // intermediate points on the list use the endOffset of the |
| 1174 | // location of the ancestor, rather than just past it. So we need |
| 1175 | // to add one here in order to include it in the children we serialize. |
| 1176 | const nsINode* endContainer = ShadowDOMSelectionHelpers::GetEndContainer( |
| 1177 | &aRange, mAllowCrossShadowBoundary); |
| 1178 | if (&aNode != endContainer) { |
| 1179 | MOZ_ASSERT(*endOffset != UINT32_MAX)do { static_assert( mozilla::detail::AssertionConditionType< decltype(*endOffset != (4294967295U))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(*endOffset != (4294967295U)) )), 0))) { do { } while (false); MOZ_ReportAssertionFailure("*endOffset != (4294967295U)" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/serializers/nsDocumentEncoder.cpp" , 1179); AnnotateMozCrashReason("MOZ_ASSERT" "(" "*endOffset != (4294967295U)" ")"); do { *((volatile int*)__null) = 1179; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1180 | endOffset.ref()++; |
| 1181 | } |
| 1182 | } |
| 1183 | |
| 1184 | MOZ_ASSERT(endOffset.isSome())do { static_assert( mozilla::detail::AssertionConditionType< decltype(endOffset.isSome())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(endOffset.isSome()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("endOffset.isSome()" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/serializers/nsDocumentEncoder.cpp" , 1184); AnnotateMozCrashReason("MOZ_ASSERT" "(" "endOffset.isSome()" ")"); do { *((volatile int*)__null) = 1184; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1185 | nsresult rv = SerializeChildrenOfContent(aContent, *startOffset, *endOffset, |
| 1186 | &aRange, aDepth); |
| 1187 | 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/dom/serializers/nsDocumentEncoder.cpp" , 1187); return rv; } } while (false); |
| 1188 | |
| 1189 | // serialize the end of this node |
| 1190 | if (&aNode != mClosestCommonInclusiveAncestorOfRange) { |
| 1191 | nsresult rv = mNodeSerializer.SerializeNodeEnd(aNode); |
| 1192 | 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/dom/serializers/nsDocumentEncoder.cpp" , 1192); return rv; } } while (false); |
| 1193 | } |
| 1194 | } |
| 1195 | |
| 1196 | return NS_OK; |
| 1197 | } |
| 1198 | |
| 1199 | nsresult nsDocumentEncoder::RangeSerializer::SerializeChildrenOfContent( |
| 1200 | nsIContent& aContent, uint32_t aStartOffset, uint32_t aEndOffset, |
| 1201 | const nsRange* aRange, int32_t aDepth) { |
| 1202 | ShadowRoot* shadowRoot = ShadowDOMSelectionHelpers::GetShadowRoot( |
| 1203 | &aContent, mAllowCrossShadowBoundary); |
| 1204 | if (shadowRoot) { |
| 1205 | // Serialize the ShadowRoot first when the entire node needs to be |
| 1206 | // serialized. |
| 1207 | SerializeRangeNodes(aRange, shadowRoot, aDepth + 1); |
| 1208 | } |
| 1209 | |
| 1210 | if (!aEndOffset) { |
| 1211 | return NS_OK; |
| 1212 | } |
| 1213 | // serialize the children of this node that are in the range |
| 1214 | nsIContent* childAsNode = aContent.GetFirstChild(); |
| 1215 | uint32_t j = 0; |
| 1216 | |
| 1217 | for (; j < aStartOffset && childAsNode; ++j) { |
| 1218 | childAsNode = childAsNode->GetNextSibling(); |
| 1219 | } |
| 1220 | |
| 1221 | MOZ_ASSERT(j == aStartOffset)do { static_assert( mozilla::detail::AssertionConditionType< decltype(j == aStartOffset)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(j == aStartOffset))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("j == aStartOffset" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/serializers/nsDocumentEncoder.cpp" , 1221); AnnotateMozCrashReason("MOZ_ASSERT" "(" "j == aStartOffset" ")"); do { *((volatile int*)__null) = 1221; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1222 | |
| 1223 | for (; childAsNode && j < aEndOffset; ++j) { |
| 1224 | if (shadowRoot && !childAsNode->GetAssignedSlot()) { |
| 1225 | childAsNode = childAsNode->GetNextSibling(); |
| 1226 | // Since this node is a shadow host, we skip the children that are not |
| 1227 | // slotted because they aren't visible. |
| 1228 | continue; |
| 1229 | } |
| 1230 | nsresult rv{NS_OK}; |
| 1231 | if ((j == aStartOffset) || (j == aEndOffset - 1)) { |
| 1232 | rv = SerializeRangeNodes(aRange, childAsNode, aDepth + 1); |
| 1233 | } else { |
| 1234 | rv = mNodeSerializer.SerializeToStringRecursive( |
| 1235 | childAsNode, NodeSerializer::SerializeRoot::eYes); |
| 1236 | } |
| 1237 | |
| 1238 | if (NS_FAILED(rv)((bool)(__builtin_expect(!!(NS_FAILED_impl(rv)), 0)))) { |
| 1239 | return rv; |
| 1240 | } |
| 1241 | |
| 1242 | childAsNode = childAsNode->GetNextSibling(); |
| 1243 | } |
| 1244 | |
| 1245 | return NS_OK; |
| 1246 | } |
| 1247 | |
| 1248 | nsresult nsDocumentEncoder::RangeContextSerializer::SerializeRangeContextStart( |
| 1249 | const nsTArray<nsINode*>& aAncestorArray) { |
| 1250 | if (mDisableContextSerialize) { |
| 1251 | return NS_OK; |
| 1252 | } |
| 1253 | |
| 1254 | AutoTArray<nsINode*, 8>* serializedContext = mRangeContexts.AppendElement(); |
| 1255 | |
| 1256 | int32_t i = aAncestorArray.Length(), j; |
| 1257 | nsresult rv = NS_OK; |
| 1258 | |
| 1259 | // currently only for table-related elements; see Bug 137450 |
| 1260 | j = mRangeNodeContext.GetImmediateContextCount(aAncestorArray); |
| 1261 | |
| 1262 | while (i > 0) { |
| 1263 | nsINode* node = aAncestorArray.ElementAt(--i); |
| 1264 | if (!node) break; |
| 1265 | |
| 1266 | // Either a general inclusion or as immediate context |
| 1267 | if (mRangeNodeContext.IncludeInContext(*node) || i < j) { |
| 1268 | rv = mNodeSerializer.SerializeNodeStart(*node, 0, -1); |
| 1269 | serializedContext->AppendElement(node); |
| 1270 | if (NS_FAILED(rv)((bool)(__builtin_expect(!!(NS_FAILED_impl(rv)), 0)))) break; |
| 1271 | } |
| 1272 | } |
| 1273 | |
| 1274 | return rv; |
| 1275 | } |
| 1276 | |
| 1277 | nsresult nsDocumentEncoder::RangeContextSerializer::SerializeRangeContextEnd() { |
| 1278 | if (mDisableContextSerialize) { |
| 1279 | return NS_OK; |
| 1280 | } |
| 1281 | |
| 1282 | MOZ_RELEASE_ASSERT(!mRangeContexts.IsEmpty(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(!mRangeContexts.IsEmpty())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!mRangeContexts.IsEmpty()))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("!mRangeContexts.IsEmpty()" " (" "Tried to end context without starting one." ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/serializers/nsDocumentEncoder.cpp" , 1283); AnnotateMozCrashReason("MOZ_RELEASE_ASSERT" "(" "!mRangeContexts.IsEmpty()" ") (" "Tried to end context without starting one." ")"); do { *((volatile int*)__null) = 1283; __attribute__((nomerge)) :: abort(); } while (false); } } while (false) |
| 1283 | "Tried to end context without starting one.")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!mRangeContexts.IsEmpty())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!mRangeContexts.IsEmpty()))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("!mRangeContexts.IsEmpty()" " (" "Tried to end context without starting one." ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/serializers/nsDocumentEncoder.cpp" , 1283); AnnotateMozCrashReason("MOZ_RELEASE_ASSERT" "(" "!mRangeContexts.IsEmpty()" ") (" "Tried to end context without starting one." ")"); do { *((volatile int*)__null) = 1283; __attribute__((nomerge)) :: abort(); } while (false); } } while (false); |
| 1284 | AutoTArray<nsINode*, 8>& serializedContext = mRangeContexts.LastElement(); |
| 1285 | |
| 1286 | nsresult rv = NS_OK; |
| 1287 | for (nsINode* node : Reversed(serializedContext)) { |
| 1288 | rv = mNodeSerializer.SerializeNodeEnd(*node); |
| 1289 | |
| 1290 | if (NS_FAILED(rv)((bool)(__builtin_expect(!!(NS_FAILED_impl(rv)), 0)))) break; |
| 1291 | } |
| 1292 | |
| 1293 | mRangeContexts.RemoveLastElement(); |
| 1294 | return rv; |
| 1295 | } |
| 1296 | |
| 1297 | bool nsDocumentEncoder::RangeSerializer::HasInvisibleParentAndShouldBeSkipped( |
| 1298 | nsINode& aNode) const { |
| 1299 | if (!(mFlags & SkipInvisibleContent)) { |
| 1300 | return false; |
| 1301 | } |
| 1302 | |
| 1303 | // Check that the parent is visible if we don't a frame. |
| 1304 | // IsInvisibleNodeAndShouldBeSkipped() will do it when there's a frame. |
| 1305 | nsCOMPtr<nsIContent> content = nsIContent::FromNode(aNode); |
| 1306 | if (content && !content->GetPrimaryFrame()) { |
| 1307 | nsIContent* parent = content->GetParent(); |
| 1308 | return !parent || IsInvisibleNodeAndShouldBeSkipped(*parent, mFlags); |
| 1309 | } |
| 1310 | |
| 1311 | return false; |
| 1312 | } |
| 1313 | |
| 1314 | nsresult nsDocumentEncoder::RangeSerializer::SerializeRangeToString( |
| 1315 | const nsRange* aRange) { |
| 1316 | if (!aRange || (aRange->Collapsed() && (!mAllowCrossShadowBoundary || |
| 1317 | !aRange->MayCrossShadowBoundary()))) { |
| 1318 | return NS_OK; |
| 1319 | } |
| 1320 | |
| 1321 | // Consider a case where the boundary of the selection is ShadowRoot (ie, the |
| 1322 | // first child of ShadowRoot is selected, so ShadowRoot is the container hence |
| 1323 | // the boundary), allowing GetClosestCommonInclusiveAncestor to cross the |
| 1324 | // boundary can return the host element as the container. |
| 1325 | // SerializeRangeContextStart doesn't support this case. |
| 1326 | mClosestCommonInclusiveAncestorOfRange = |
| 1327 | aRange->GetClosestCommonInclusiveAncestor( |
| 1328 | mAllowCrossShadowBoundary ? AllowRangeCrossShadowBoundary::Yes |
| 1329 | : AllowRangeCrossShadowBoundary::No); |
| 1330 | |
| 1331 | if (!mClosestCommonInclusiveAncestorOfRange) { |
| 1332 | return NS_OK; |
| 1333 | } |
| 1334 | |
| 1335 | nsINode* startContainer = ShadowDOMSelectionHelpers::GetStartContainer( |
| 1336 | aRange, mAllowCrossShadowBoundary); |
| 1337 | NS_ENSURE_TRUE(startContainer, NS_ERROR_FAILURE)do { if ((__builtin_expect(!!(!(startContainer)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "startContainer" ") failed" , nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/dom/serializers/nsDocumentEncoder.cpp" , 1337); return NS_ERROR_FAILURE; } } while (false); |
| 1338 | const int32_t startOffset = |
| 1339 | ShadowDOMSelectionHelpers::StartOffset(aRange, mAllowCrossShadowBoundary); |
| 1340 | |
| 1341 | nsINode* endContainer = ShadowDOMSelectionHelpers::GetEndContainer( |
| 1342 | aRange, mAllowCrossShadowBoundary); |
| 1343 | NS_ENSURE_TRUE(endContainer, NS_ERROR_FAILURE)do { if ((__builtin_expect(!!(!(endContainer)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "endContainer" ") failed" , nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/dom/serializers/nsDocumentEncoder.cpp" , 1343); return NS_ERROR_FAILURE; } } while (false); |
| 1344 | const int32_t endOffset = |
| 1345 | ShadowDOMSelectionHelpers::EndOffset(aRange, mAllowCrossShadowBoundary); |
| 1346 | |
| 1347 | mContextInfoDepth = {}; |
| 1348 | mCommonInclusiveAncestors.Clear(); |
| 1349 | |
| 1350 | mRangeBoundariesInclusiveAncestorsAndOffsets = {}; |
| 1351 | auto& inclusiveAncestorsOfStart = |
| 1352 | mRangeBoundariesInclusiveAncestorsAndOffsets.mInclusiveAncestorsOfStart; |
| 1353 | auto& inclusiveAncestorsOffsetsOfStart = |
| 1354 | mRangeBoundariesInclusiveAncestorsAndOffsets |
| 1355 | .mInclusiveAncestorsOffsetsOfStart; |
| 1356 | auto& inclusiveAncestorsOfEnd = |
| 1357 | mRangeBoundariesInclusiveAncestorsAndOffsets.mInclusiveAncestorsOfEnd; |
| 1358 | auto& inclusiveAncestorsOffsetsOfEnd = |
| 1359 | mRangeBoundariesInclusiveAncestorsAndOffsets |
| 1360 | .mInclusiveAncestorsOffsetsOfEnd; |
| 1361 | |
| 1362 | nsContentUtils::GetInclusiveAncestors(mClosestCommonInclusiveAncestorOfRange, |
| 1363 | mCommonInclusiveAncestors); |
| 1364 | if (mAllowCrossShadowBoundary) { |
| 1365 | nsContentUtils::GetShadowIncludingAncestorsAndOffsets( |
| 1366 | startContainer, startOffset, inclusiveAncestorsOfStart, |
| 1367 | inclusiveAncestorsOffsetsOfStart); |
| 1368 | nsContentUtils::GetShadowIncludingAncestorsAndOffsets( |
| 1369 | endContainer, endOffset, inclusiveAncestorsOfEnd, |
| 1370 | inclusiveAncestorsOffsetsOfEnd); |
| 1371 | } else { |
| 1372 | nsContentUtils::GetInclusiveAncestorsAndOffsets( |
| 1373 | startContainer, startOffset, inclusiveAncestorsOfStart, |
| 1374 | inclusiveAncestorsOffsetsOfStart); |
| 1375 | nsContentUtils::GetInclusiveAncestorsAndOffsets( |
| 1376 | endContainer, endOffset, inclusiveAncestorsOfEnd, |
| 1377 | inclusiveAncestorsOffsetsOfEnd); |
| 1378 | } |
| 1379 | |
| 1380 | nsCOMPtr<nsIContent> commonContent = |
| 1381 | nsIContent::FromNodeOrNull(mClosestCommonInclusiveAncestorOfRange); |
| 1382 | mStartRootIndex = inclusiveAncestorsOfStart.IndexOf(commonContent); |
| 1383 | mEndRootIndex = inclusiveAncestorsOfEnd.IndexOf(commonContent); |
| 1384 | |
| 1385 | nsresult rv = NS_OK; |
| 1386 | |
| 1387 | rv = mRangeContextSerializer.SerializeRangeContextStart( |
| 1388 | mCommonInclusiveAncestors); |
| 1389 | 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/dom/serializers/nsDocumentEncoder.cpp" , 1389); return rv; } } while (false); |
| 1390 | |
| 1391 | if (startContainer == endContainer && IsTextNode(startContainer)) { |
| 1392 | if (HasInvisibleParentAndShouldBeSkipped(*startContainer)) { |
| 1393 | return NS_OK; |
| 1394 | } |
| 1395 | rv = mNodeSerializer.SerializeTextNode(*startContainer, startOffset, |
| 1396 | endOffset); |
| 1397 | 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/dom/serializers/nsDocumentEncoder.cpp" , 1397); return rv; } } while (false); |
| 1398 | } else { |
| 1399 | rv = SerializeRangeNodes(aRange, mClosestCommonInclusiveAncestorOfRange, 0); |
| 1400 | 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/dom/serializers/nsDocumentEncoder.cpp" , 1400); return rv; } } while (false); |
| 1401 | } |
| 1402 | rv = mRangeContextSerializer.SerializeRangeContextEnd(); |
| 1403 | 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/dom/serializers/nsDocumentEncoder.cpp" , 1403); return rv; } } while (false); |
| 1404 | |
| 1405 | return rv; |
| 1406 | } |
| 1407 | |
| 1408 | void nsDocumentEncoder::ReleaseDocumentReferenceAndInitialize( |
| 1409 | bool aClearCachedSerializer) { |
| 1410 | mDocument = nullptr; |
| 1411 | |
| 1412 | Initialize(aClearCachedSerializer); |
| 1413 | } |
| 1414 | |
| 1415 | NS_IMETHODIMPnsresult |
| 1416 | nsDocumentEncoder::EncodeToString(nsAString& aOutputString) { |
| 1417 | return EncodeToStringWithMaxLength(0, aOutputString); |
| 1418 | } |
| 1419 | |
| 1420 | NS_IMETHODIMPnsresult |
| 1421 | nsDocumentEncoder::EncodeToStringWithMaxLength(uint32_t aMaxLength, |
| 1422 | nsAString& aOutputString) { |
| 1423 | MOZ_ASSERT(mRangeContextSerializer.mRangeContexts.IsEmpty(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(mRangeContextSerializer.mRangeContexts.IsEmpty())> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(mRangeContextSerializer.mRangeContexts.IsEmpty()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("mRangeContextSerializer.mRangeContexts.IsEmpty()" " (" "Re-entrant call to nsDocumentEncoder." ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/serializers/nsDocumentEncoder.cpp" , 1424); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mRangeContextSerializer.mRangeContexts.IsEmpty()" ") (" "Re-entrant call to nsDocumentEncoder." ")"); do { *(( volatile int*)__null) = 1424; __attribute__((nomerge)) ::abort (); } while (false); } } while (false) |
| 1424 | "Re-entrant call to nsDocumentEncoder.")do { static_assert( mozilla::detail::AssertionConditionType< decltype(mRangeContextSerializer.mRangeContexts.IsEmpty())> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(mRangeContextSerializer.mRangeContexts.IsEmpty()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("mRangeContextSerializer.mRangeContexts.IsEmpty()" " (" "Re-entrant call to nsDocumentEncoder." ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/serializers/nsDocumentEncoder.cpp" , 1424); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mRangeContextSerializer.mRangeContexts.IsEmpty()" ") (" "Re-entrant call to nsDocumentEncoder." ")"); do { *(( volatile int*)__null) = 1424; __attribute__((nomerge)) ::abort (); } while (false); } } while (false); |
| 1425 | auto rangeContextGuard = |
| 1426 | MakeScopeExit([&] { mRangeContextSerializer.mRangeContexts.Clear(); }); |
| 1427 | |
| 1428 | if (!mDocument) return NS_ERROR_NOT_INITIALIZED; |
| 1429 | |
| 1430 | AutoReleaseDocumentIfNeeded autoReleaseDocument(this); |
| 1431 | |
| 1432 | aOutputString.Truncate(); |
| 1433 | |
| 1434 | nsString output; |
| 1435 | static const size_t kStringBufferSizeInBytes = 2048; |
| 1436 | if (!mCachedBuffer) { |
| 1437 | mCachedBuffer = StringBuffer::Alloc(kStringBufferSizeInBytes); |
| 1438 | if (NS_WARN_IF(!mCachedBuffer)NS_warn_if_impl(!mCachedBuffer, "!mCachedBuffer", "/var/lib/jenkins/workspace/firefox-scan-build/dom/serializers/nsDocumentEncoder.cpp" , 1438)) { |
| 1439 | return NS_ERROR_OUT_OF_MEMORY; |
| 1440 | } |
| 1441 | } |
| 1442 | NS_ASSERTION(do { if (!(!mCachedBuffer->IsReadonly())) { NS_DebugBreak( NS_DEBUG_ASSERTION, "nsIDocumentEncoder shouldn't keep reference to non-readonly buffer!" , "!mCachedBuffer->IsReadonly()", "/var/lib/jenkins/workspace/firefox-scan-build/dom/serializers/nsDocumentEncoder.cpp" , 1444); MOZ_PretendNoReturn(); } } while (0) |
| 1443 | !mCachedBuffer->IsReadonly(),do { if (!(!mCachedBuffer->IsReadonly())) { NS_DebugBreak( NS_DEBUG_ASSERTION, "nsIDocumentEncoder shouldn't keep reference to non-readonly buffer!" , "!mCachedBuffer->IsReadonly()", "/var/lib/jenkins/workspace/firefox-scan-build/dom/serializers/nsDocumentEncoder.cpp" , 1444); MOZ_PretendNoReturn(); } } while (0) |
| 1444 | "nsIDocumentEncoder shouldn't keep reference to non-readonly buffer!")do { if (!(!mCachedBuffer->IsReadonly())) { NS_DebugBreak( NS_DEBUG_ASSERTION, "nsIDocumentEncoder shouldn't keep reference to non-readonly buffer!" , "!mCachedBuffer->IsReadonly()", "/var/lib/jenkins/workspace/firefox-scan-build/dom/serializers/nsDocumentEncoder.cpp" , 1444); MOZ_PretendNoReturn(); } } while (0); |
| 1445 | static_cast<char16_t*>(mCachedBuffer->Data())[0] = char16_t(0); |
| 1446 | output.Assign(mCachedBuffer.forget(), 0); |
| 1447 | |
| 1448 | if (!mSerializer) { |
| 1449 | nsAutoCString progId(NS_CONTENTSERIALIZER_CONTRACTID_PREFIX"@mozilla.org/layout/contentserializer;1?mimetype="); |
| 1450 | AppendUTF16toUTF8(mMimeType, progId); |
| 1451 | |
| 1452 | mSerializer = do_CreateInstance(progId.get()); |
| 1453 | NS_ENSURE_TRUE(mSerializer, NS_ERROR_NOT_IMPLEMENTED)do { if ((__builtin_expect(!!(!(mSerializer)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "mSerializer" ") failed" , nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/dom/serializers/nsDocumentEncoder.cpp" , 1453); return NS_ERROR_NOT_IMPLEMENTED; } } while (false); |
| 1454 | } |
| 1455 | |
| 1456 | nsresult rv = NS_OK; |
| 1457 | |
| 1458 | bool rewriteEncodingDeclaration = |
| 1459 | !mEncodingScope.IsLimited() && |
| 1460 | !(mFlags & OutputDontRewriteEncodingDeclaration); |
| 1461 | mSerializer->Init(mFlags, mWrapColumn, mEncoding, mIsCopying, |
| 1462 | rewriteEncodingDeclaration, &mNeedsPreformatScanning, |
| 1463 | output); |
| 1464 | |
| 1465 | rv = SerializeDependingOnScope(aMaxLength); |
| 1466 | 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/dom/serializers/nsDocumentEncoder.cpp" , 1466); return rv; } } while (false); |
| 1467 | |
| 1468 | rv = mSerializer->FlushAndFinish(); |
| 1469 | |
| 1470 | // We have to be careful how we set aOutputString, because we don't |
| 1471 | // want it to end up sharing mCachedBuffer if we plan to reuse it. |
| 1472 | bool setOutput = false; |
| 1473 | MOZ_ASSERT(!mCachedBuffer)do { static_assert( mozilla::detail::AssertionConditionType< decltype(!mCachedBuffer)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!mCachedBuffer))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!mCachedBuffer" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/serializers/nsDocumentEncoder.cpp" , 1473); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!mCachedBuffer" ")"); do { *((volatile int*)__null) = 1473; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1474 | // Try to cache the buffer. |
| 1475 | if (StringBuffer* outputBuffer = output.GetStringBuffer()) { |
| 1476 | if (outputBuffer->StorageSize() == kStringBufferSizeInBytes && |
| 1477 | !outputBuffer->IsReadonly()) { |
| 1478 | mCachedBuffer = outputBuffer; |
| 1479 | } else if (NS_SUCCEEDED(rv)((bool)(__builtin_expect(!!(!NS_FAILED_impl(rv)), 1)))) { |
| 1480 | aOutputString.Assign(outputBuffer, output.Length()); |
| 1481 | setOutput = true; |
| 1482 | } |
| 1483 | } |
| 1484 | |
| 1485 | if (!setOutput && NS_SUCCEEDED(rv)((bool)(__builtin_expect(!!(!NS_FAILED_impl(rv)), 1)))) { |
| 1486 | aOutputString.Append(output.get(), output.Length()); |
| 1487 | } |
| 1488 | |
| 1489 | return rv; |
| 1490 | } |
| 1491 | |
| 1492 | NS_IMETHODIMPnsresult |
| 1493 | nsDocumentEncoder::EncodeToStream(nsIOutputStream* aStream) { |
| 1494 | MOZ_ASSERT(mRangeContextSerializer.mRangeContexts.IsEmpty(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(mRangeContextSerializer.mRangeContexts.IsEmpty())> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(mRangeContextSerializer.mRangeContexts.IsEmpty()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("mRangeContextSerializer.mRangeContexts.IsEmpty()" " (" "Re-entrant call to nsDocumentEncoder." ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/serializers/nsDocumentEncoder.cpp" , 1495); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mRangeContextSerializer.mRangeContexts.IsEmpty()" ") (" "Re-entrant call to nsDocumentEncoder." ")"); do { *(( volatile int*)__null) = 1495; __attribute__((nomerge)) ::abort (); } while (false); } } while (false) |
| 1495 | "Re-entrant call to nsDocumentEncoder.")do { static_assert( mozilla::detail::AssertionConditionType< decltype(mRangeContextSerializer.mRangeContexts.IsEmpty())> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(mRangeContextSerializer.mRangeContexts.IsEmpty()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("mRangeContextSerializer.mRangeContexts.IsEmpty()" " (" "Re-entrant call to nsDocumentEncoder." ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/serializers/nsDocumentEncoder.cpp" , 1495); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mRangeContextSerializer.mRangeContexts.IsEmpty()" ") (" "Re-entrant call to nsDocumentEncoder." ")"); do { *(( volatile int*)__null) = 1495; __attribute__((nomerge)) ::abort (); } while (false); } } while (false); |
| 1496 | auto rangeContextGuard = |
| 1497 | MakeScopeExit([&] { mRangeContextSerializer.mRangeContexts.Clear(); }); |
| 1498 | NS_ENSURE_ARG_POINTER(aStream)do { if ((__builtin_expect(!!(!(aStream)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "aStream" ") failed", nullptr , "/var/lib/jenkins/workspace/firefox-scan-build/dom/serializers/nsDocumentEncoder.cpp" , 1498); return NS_ERROR_INVALID_POINTER; } } while (false); |
| 1499 | |
| 1500 | nsresult rv = NS_OK; |
| 1501 | |
| 1502 | if (!mDocument) return NS_ERROR_NOT_INITIALIZED; |
| 1503 | |
| 1504 | if (!mEncoding) { |
| 1505 | return NS_ERROR_UCONV_NOCONV; |
| 1506 | } |
| 1507 | |
| 1508 | nsAutoString buf; |
| 1509 | const bool isPlainText = mMimeType.LowerCaseEqualsLiteral(kTextMime"text/plain"); |
| 1510 | mTextStreamer.emplace(*aStream, mEncoding->NewEncoder(), isPlainText, buf); |
| 1511 | |
| 1512 | rv = EncodeToString(buf); |
Value stored to 'rv' is never read | |
| 1513 | |
| 1514 | // Force a flush of the last chunk of data. |
| 1515 | rv = mTextStreamer->ForceFlush(); |
| 1516 | 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/dom/serializers/nsDocumentEncoder.cpp" , 1516); return rv; } } while (false); |
| 1517 | |
| 1518 | mTextStreamer.reset(); |
| 1519 | |
| 1520 | return rv; |
| 1521 | } |
| 1522 | |
| 1523 | NS_IMETHODIMPnsresult |
| 1524 | nsDocumentEncoder::EncodeToStringWithContext(nsAString& aContextString, |
| 1525 | nsAString& aInfoString, |
| 1526 | nsAString& aEncodedString) { |
| 1527 | return NS_ERROR_NOT_IMPLEMENTED; |
| 1528 | } |
| 1529 | |
| 1530 | NS_IMETHODIMPnsresult |
| 1531 | nsDocumentEncoder::SetNodeFixup(nsIDocumentEncoderNodeFixup* aFixup) { |
| 1532 | mNodeFixup = aFixup; |
| 1533 | return NS_OK; |
| 1534 | } |
| 1535 | |
| 1536 | bool do_getDocumentTypeSupportedForEncoding(const char* aContentType) { |
| 1537 | if (!nsCRT::strcmp(aContentType, "text/xml") || |
| 1538 | !nsCRT::strcmp(aContentType, "application/xml") || |
| 1539 | !nsCRT::strcmp(aContentType, "application/xhtml+xml") || |
| 1540 | !nsCRT::strcmp(aContentType, "image/svg+xml") || |
| 1541 | !nsCRT::strcmp(aContentType, "text/html") || |
| 1542 | !nsCRT::strcmp(aContentType, "text/plain")) { |
| 1543 | return true; |
| 1544 | } |
| 1545 | return false; |
| 1546 | } |
| 1547 | |
| 1548 | already_AddRefed<nsIDocumentEncoder> do_createDocumentEncoder( |
| 1549 | const char* aContentType) { |
| 1550 | if (do_getDocumentTypeSupportedForEncoding(aContentType)) { |
| 1551 | return do_AddRef(new nsDocumentEncoder); |
| 1552 | } |
| 1553 | return nullptr; |
| 1554 | } |
| 1555 | |
| 1556 | class nsHTMLCopyEncoder : public nsDocumentEncoder { |
| 1557 | private: |
| 1558 | class RangeNodeContext final : public nsDocumentEncoder::RangeNodeContext { |
| 1559 | bool IncludeInContext(nsINode& aNode) const final; |
| 1560 | |
| 1561 | int32_t GetImmediateContextCount( |
| 1562 | const nsTArray<nsINode*>& aAncestorArray) const final; |
| 1563 | }; |
| 1564 | |
| 1565 | public: |
| 1566 | nsHTMLCopyEncoder(); |
| 1567 | ~nsHTMLCopyEncoder(); |
| 1568 | |
| 1569 | NS_IMETHODvirtual nsresult Init(Document* aDocument, const nsAString& aMimeType, |
| 1570 | uint32_t aFlags) override; |
| 1571 | |
| 1572 | // overridden methods from nsDocumentEncoder |
| 1573 | MOZ_CAN_RUN_SCRIPT_BOUNDARY |
| 1574 | NS_IMETHODvirtual nsresult SetSelection(Selection* aSelection) override; |
| 1575 | NS_IMETHODvirtual nsresult EncodeToStringWithContext(nsAString& aContextString, |
| 1576 | nsAString& aInfoString, |
| 1577 | nsAString& aEncodedString) override; |
| 1578 | NS_IMETHODvirtual nsresult EncodeToString(nsAString& aOutputString) override; |
| 1579 | |
| 1580 | protected: |
| 1581 | enum Endpoint { kStart, kEnd }; |
| 1582 | |
| 1583 | nsresult PromoteRange(nsRange* inRange); |
| 1584 | nsresult PromoteAncestorChain(nsCOMPtr<nsINode>* ioNode, |
| 1585 | int32_t* ioStartOffset, int32_t* ioEndOffset); |
| 1586 | nsresult GetPromotedPoint(Endpoint aWhere, nsINode* aNode, int32_t aOffset, |
| 1587 | nsCOMPtr<nsINode>* outNode, int32_t* outOffset, |
| 1588 | nsINode* aCommon); |
| 1589 | static nsCOMPtr<nsINode> GetChildAt(nsINode* aParent, int32_t aOffset); |
| 1590 | static bool IsMozBR(Element* aNode); |
| 1591 | nsresult GetNodeLocation(nsINode* inChild, nsCOMPtr<nsINode>* outParent, |
| 1592 | int32_t* outOffset); |
| 1593 | bool IsRoot(nsINode* aNode); |
| 1594 | static bool IsFirstNode(nsINode* aNode); |
| 1595 | static bool IsLastNode(nsINode* aNode); |
| 1596 | |
| 1597 | bool mIsTextWidget; |
| 1598 | }; |
| 1599 | |
| 1600 | nsHTMLCopyEncoder::nsHTMLCopyEncoder() |
| 1601 | : nsDocumentEncoder{MakeUnique<nsHTMLCopyEncoder::RangeNodeContext>()} { |
| 1602 | mIsTextWidget = false; |
| 1603 | } |
| 1604 | |
| 1605 | nsHTMLCopyEncoder::~nsHTMLCopyEncoder() = default; |
| 1606 | |
| 1607 | NS_IMETHODIMPnsresult |
| 1608 | nsHTMLCopyEncoder::Init(Document* aDocument, const nsAString& aMimeType, |
| 1609 | uint32_t aFlags) { |
| 1610 | if (!aDocument) return NS_ERROR_INVALID_ARG; |
| 1611 | |
| 1612 | mIsTextWidget = false; |
| 1613 | Initialize(true, aFlags & nsIDocumentEncoder::AllowCrossShadowBoundary); |
| 1614 | |
| 1615 | mIsCopying = true; |
| 1616 | mDocument = aDocument; |
| 1617 | |
| 1618 | // Hack, hack! Traditionally, the caller passes text/plain, which is |
| 1619 | // treated as "guess text/html or text/plain" in this context. (It has a |
| 1620 | // different meaning in other contexts. Sigh.) From now on, "text/plain" |
| 1621 | // means forcing text/plain instead of guessing. |
| 1622 | if (aMimeType.EqualsLiteral("text/plain")) { |
| 1623 | mMimeType.AssignLiteral("text/plain"); |
| 1624 | } else { |
| 1625 | mMimeType.AssignLiteral("text/html"); |
| 1626 | } |
| 1627 | |
| 1628 | // Make all links absolute when copying |
| 1629 | // (see related bugs #57296, #41924, #58646, #32768) |
| 1630 | mFlags = aFlags | OutputAbsoluteLinks; |
| 1631 | |
| 1632 | if (!mDocument->IsScriptEnabled()) mFlags |= OutputNoScriptContent; |
| 1633 | |
| 1634 | return NS_OK; |
| 1635 | } |
| 1636 | |
| 1637 | NS_IMETHODIMPnsresult |
| 1638 | nsHTMLCopyEncoder::SetSelection(Selection* aSelection) { |
| 1639 | // check for text widgets: we need to recognize these so that |
| 1640 | // we don't tweak the selection to be outside of the magic |
| 1641 | // div that ender-lite text widgets are embedded in. |
| 1642 | |
| 1643 | if (!aSelection) return NS_ERROR_NULL_POINTER; |
| 1644 | |
| 1645 | const uint32_t rangeCount = aSelection->RangeCount(); |
| 1646 | |
| 1647 | // if selection is uninitialized return |
| 1648 | if (!rangeCount) { |
| 1649 | return NS_ERROR_FAILURE; |
| 1650 | } |
| 1651 | |
| 1652 | // we'll just use the common parent of the first range. Implicit assumption |
| 1653 | // here that multi-range selections are table cell selections, in which case |
| 1654 | // the common parent is somewhere in the table and we don't really care where. |
| 1655 | // |
| 1656 | // FIXME(emilio, bug 1455894): This assumption is already wrong, and will |
| 1657 | // probably be more wrong in a Shadow DOM world... |
| 1658 | // |
| 1659 | // We should be able to write this as "Find the common ancestor of the |
| 1660 | // selection, then go through the flattened tree and serialize the selected |
| 1661 | // nodes", effectively serializing the composed tree. |
| 1662 | RefPtr<nsRange> range = aSelection->GetRangeAt(0); |
| 1663 | nsINode* commonParent = range->GetClosestCommonInclusiveAncestor(); |
| 1664 | |
| 1665 | for (nsCOMPtr<nsIContent> selContent( |
| 1666 | nsIContent::FromNodeOrNull(commonParent)); |
| 1667 | selContent; selContent = selContent->GetParent()) { |
| 1668 | // checking for selection inside a plaintext form widget |
| 1669 | if (selContent->IsAnyOfHTMLElements(nsGkAtoms::input, |
| 1670 | nsGkAtoms::textarea)) { |
| 1671 | mIsTextWidget = true; |
| 1672 | break; |
| 1673 | } |
| 1674 | } |
| 1675 | |
| 1676 | // normalize selection if we are not in a widget |
| 1677 | if (mIsTextWidget) { |
| 1678 | mEncodingScope.mSelection = aSelection; |
| 1679 | mMimeType.AssignLiteral("text/plain"); |
| 1680 | return NS_OK; |
| 1681 | } |
| 1682 | |
| 1683 | // XXX We should try to get rid of the Selection object here. |
| 1684 | // XXX bug 1245883 |
| 1685 | |
| 1686 | // also consider ourselves in a text widget if we can't find an html document |
| 1687 | if (!(mDocument && mDocument->IsHTMLDocument())) { |
| 1688 | mIsTextWidget = true; |
| 1689 | mEncodingScope.mSelection = aSelection; |
| 1690 | // mMimeType is set to text/plain when encoding starts. |
| 1691 | return NS_OK; |
| 1692 | } |
| 1693 | |
| 1694 | // there's no Clone() for selection! fix... |
| 1695 | // nsresult rv = aSelection->Clone(getter_AddRefs(mSelection); |
| 1696 | // NS_ENSURE_SUCCESS(rv, rv); |
| 1697 | mEncodingScope.mSelection = new Selection(SelectionType::eNormal, nullptr); |
| 1698 | |
| 1699 | // loop thru the ranges in the selection |
| 1700 | for (const uint32_t rangeIdx : IntegerRange(rangeCount)) { |
| 1701 | MOZ_ASSERT(aSelection->RangeCount() == rangeCount)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aSelection->RangeCount() == rangeCount)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(aSelection->RangeCount() == rangeCount))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aSelection->RangeCount() == rangeCount" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/serializers/nsDocumentEncoder.cpp" , 1701); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aSelection->RangeCount() == rangeCount" ")"); do { *((volatile int*)__null) = 1701; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1702 | range = aSelection->GetRangeAt(rangeIdx); |
| 1703 | NS_ENSURE_TRUE(range, NS_ERROR_FAILURE)do { if ((__builtin_expect(!!(!(range)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "range" ") failed", nullptr , "/var/lib/jenkins/workspace/firefox-scan-build/dom/serializers/nsDocumentEncoder.cpp" , 1703); return NS_ERROR_FAILURE; } } while (false); |
| 1704 | RefPtr<nsRange> myRange = range->CloneRange(); |
| 1705 | MOZ_ASSERT(myRange)do { static_assert( mozilla::detail::AssertionConditionType< decltype(myRange)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(myRange))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("myRange", "/var/lib/jenkins/workspace/firefox-scan-build/dom/serializers/nsDocumentEncoder.cpp" , 1705); AnnotateMozCrashReason("MOZ_ASSERT" "(" "myRange" ")" ); do { *((volatile int*)__null) = 1705; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1706 | |
| 1707 | // adjust range to include any ancestors who's children are entirely |
| 1708 | // selected |
| 1709 | nsresult rv = PromoteRange(myRange); |
| 1710 | 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/dom/serializers/nsDocumentEncoder.cpp" , 1710); return rv; } } while (false); |
| 1711 | |
| 1712 | ErrorResult result; |
| 1713 | RefPtr<Selection> selection(mEncodingScope.mSelection); |
| 1714 | RefPtr<Document> document(mDocument); |
| 1715 | selection->AddRangeAndSelectFramesAndNotifyListenersInternal( |
| 1716 | *myRange, document, result); |
| 1717 | rv = result.StealNSResult(); |
| 1718 | 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/dom/serializers/nsDocumentEncoder.cpp" , 1718); return rv; } } while (false); |
| 1719 | } |
| 1720 | |
| 1721 | return NS_OK; |
| 1722 | } |
| 1723 | |
| 1724 | NS_IMETHODIMPnsresult |
| 1725 | nsHTMLCopyEncoder::EncodeToString(nsAString& aOutputString) { |
| 1726 | if (mIsTextWidget) { |
| 1727 | mMimeType.AssignLiteral("text/plain"); |
| 1728 | } |
| 1729 | return nsDocumentEncoder::EncodeToString(aOutputString); |
| 1730 | } |
| 1731 | |
| 1732 | NS_IMETHODIMPnsresult |
| 1733 | nsHTMLCopyEncoder::EncodeToStringWithContext(nsAString& aContextString, |
| 1734 | nsAString& aInfoString, |
| 1735 | nsAString& aEncodedString) { |
| 1736 | nsresult rv = EncodeToString(aEncodedString); |
| 1737 | 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/dom/serializers/nsDocumentEncoder.cpp" , 1737); return rv; } } while (false); |
| 1738 | |
| 1739 | // do not encode any context info or range hints if we are in a text widget. |
| 1740 | if (mIsTextWidget) return NS_OK; |
| 1741 | |
| 1742 | // now encode common ancestors into aContextString. Note that the common |
| 1743 | // ancestors will be for the last range in the selection in the case of |
| 1744 | // multirange selections. encoding ancestors every range in a multirange |
| 1745 | // selection in a way that could be understood by the paste code would be a |
| 1746 | // lot more work to do. As a practical matter, selections are single range, |
| 1747 | // and the ones that aren't are table cell selections where all the cells are |
| 1748 | // in the same table. |
| 1749 | |
| 1750 | mSerializer->Init(mFlags, mWrapColumn, mEncoding, mIsCopying, false, |
| 1751 | &mNeedsPreformatScanning, aContextString); |
| 1752 | |
| 1753 | // leaf of ancestors might be text node. If so discard it. |
| 1754 | int32_t count = mRangeSerializer.mCommonInclusiveAncestors.Length(); |
| 1755 | int32_t i; |
| 1756 | nsCOMPtr<nsINode> node; |
| 1757 | if (count > 0) { |
| 1758 | node = mRangeSerializer.mCommonInclusiveAncestors.ElementAt(0); |
| 1759 | } |
| 1760 | |
| 1761 | if (node && IsTextNode(node)) { |
| 1762 | mRangeSerializer.mCommonInclusiveAncestors.RemoveElementAt(0); |
| 1763 | if (mRangeSerializer.mContextInfoDepth.mStart) { |
| 1764 | --mRangeSerializer.mContextInfoDepth.mStart; |
| 1765 | } |
| 1766 | if (mRangeSerializer.mContextInfoDepth.mEnd) { |
| 1767 | --mRangeSerializer.mContextInfoDepth.mEnd; |
| 1768 | } |
| 1769 | count--; |
| 1770 | } |
| 1771 | |
| 1772 | i = count; |
| 1773 | while (i > 0) { |
| 1774 | node = mRangeSerializer.mCommonInclusiveAncestors.ElementAt(--i); |
| 1775 | rv = mNodeSerializer.SerializeNodeStart(*node, 0, -1); |
| 1776 | 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/dom/serializers/nsDocumentEncoder.cpp" , 1776); return rv; } } while (false); |
| 1777 | } |
| 1778 | // i = 0; guaranteed by above |
| 1779 | while (i < count) { |
| 1780 | node = mRangeSerializer.mCommonInclusiveAncestors.ElementAt(i++); |
| 1781 | rv = mNodeSerializer.SerializeNodeEnd(*node); |
| 1782 | 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/dom/serializers/nsDocumentEncoder.cpp" , 1782); return rv; } } while (false); |
| 1783 | } |
| 1784 | |
| 1785 | mSerializer->Finish(); |
| 1786 | |
| 1787 | // encode range info : the start and end depth of the selection, where the |
| 1788 | // depth is distance down in the parent hierarchy. Later we will need to add |
| 1789 | // leading/trailing whitespace info to this. |
| 1790 | nsAutoString infoString; |
| 1791 | infoString.AppendInt(mRangeSerializer.mContextInfoDepth.mStart); |
| 1792 | infoString.Append(char16_t(',')); |
| 1793 | infoString.AppendInt(mRangeSerializer.mContextInfoDepth.mEnd); |
| 1794 | aInfoString = infoString; |
| 1795 | |
| 1796 | return rv; |
| 1797 | } |
| 1798 | |
| 1799 | bool nsHTMLCopyEncoder::RangeNodeContext::IncludeInContext( |
| 1800 | nsINode& aNode) const { |
| 1801 | nsCOMPtr<nsIContent> content(nsIContent::FromNodeOrNull(&aNode)); |
| 1802 | |
| 1803 | if (!content) return false; |
| 1804 | |
| 1805 | return content->IsAnyOfHTMLElements( |
| 1806 | nsGkAtoms::b, nsGkAtoms::i, nsGkAtoms::u, nsGkAtoms::a, nsGkAtoms::tt, |
| 1807 | nsGkAtoms::s, nsGkAtoms::big, nsGkAtoms::small, nsGkAtoms::strike, |
| 1808 | nsGkAtoms::em, nsGkAtoms::strong, nsGkAtoms::dfn, nsGkAtoms::code, |
| 1809 | nsGkAtoms::cite, nsGkAtoms::var, nsGkAtoms::abbr, nsGkAtoms::font, |
| 1810 | nsGkAtoms::script, nsGkAtoms::span, nsGkAtoms::pre, nsGkAtoms::h1, |
| 1811 | nsGkAtoms::h2, nsGkAtoms::h3, nsGkAtoms::h4, nsGkAtoms::h5, |
| 1812 | nsGkAtoms::h6); |
| 1813 | } |
| 1814 | |
| 1815 | nsresult nsHTMLCopyEncoder::PromoteRange(nsRange* inRange) { |
| 1816 | if (!inRange->IsPositioned()) { |
| 1817 | return NS_ERROR_UNEXPECTED; |
| 1818 | } |
| 1819 | nsCOMPtr<nsINode> startNode = |
| 1820 | inRange->GetMayCrossShadowBoundaryStartContainer(); |
| 1821 | const uint32_t startOffset = inRange->MayCrossShadowBoundaryStartOffset(); |
| 1822 | nsCOMPtr<nsINode> endNode = inRange->GetMayCrossShadowBoundaryEndContainer(); |
| 1823 | const uint32_t endOffset = inRange->MayCrossShadowBoundaryEndOffset(); |
| 1824 | nsCOMPtr<nsINode> common = inRange->GetClosestCommonInclusiveAncestor( |
| 1825 | AllowRangeCrossShadowBoundary::Yes); |
| 1826 | |
| 1827 | nsCOMPtr<nsINode> opStartNode; |
| 1828 | nsCOMPtr<nsINode> opEndNode; |
| 1829 | int32_t opStartOffset, opEndOffset; |
| 1830 | |
| 1831 | // examine range endpoints. |
| 1832 | nsresult rv = |
| 1833 | GetPromotedPoint(kStart, startNode, static_cast<int32_t>(startOffset), |
| 1834 | address_of(opStartNode), &opStartOffset, common); |
| 1835 | 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/dom/serializers/nsDocumentEncoder.cpp" , 1835); return rv; } } while (false); |
| 1836 | rv = GetPromotedPoint(kEnd, endNode, static_cast<int32_t>(endOffset), |
| 1837 | address_of(opEndNode), &opEndOffset, common); |
| 1838 | 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/dom/serializers/nsDocumentEncoder.cpp" , 1838); return rv; } } while (false); |
| 1839 | |
| 1840 | // if both range endpoints are at the common ancestor, check for possible |
| 1841 | // inclusion of ancestors |
| 1842 | if (opStartNode == common && opEndNode == common) { |
| 1843 | rv = PromoteAncestorChain(address_of(opStartNode), &opStartOffset, |
| 1844 | &opEndOffset); |
| 1845 | 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/dom/serializers/nsDocumentEncoder.cpp" , 1845); return rv; } } while (false); |
| 1846 | opEndNode = opStartNode; |
| 1847 | } |
| 1848 | |
| 1849 | // set the range to the new values |
| 1850 | ErrorResult err; |
| 1851 | const bool allowRangeCrossShadowBoundary = |
| 1852 | mFlags & nsIDocumentEncoder::AllowCrossShadowBoundary; |
| 1853 | inRange->SetStart(*opStartNode, static_cast<uint32_t>(opStartOffset), err, |
| 1854 | allowRangeCrossShadowBoundary |
| 1855 | ? AllowRangeCrossShadowBoundary::Yes |
| 1856 | : AllowRangeCrossShadowBoundary::No); |
| 1857 | if (NS_WARN_IF(err.Failed())NS_warn_if_impl(err.Failed(), "err.Failed()", "/var/lib/jenkins/workspace/firefox-scan-build/dom/serializers/nsDocumentEncoder.cpp" , 1857)) { |
| 1858 | return err.StealNSResult(); |
| 1859 | } |
| 1860 | inRange->SetEnd(*opEndNode, static_cast<uint32_t>(opEndOffset), err, |
| 1861 | allowRangeCrossShadowBoundary |
| 1862 | ? AllowRangeCrossShadowBoundary::Yes |
| 1863 | : AllowRangeCrossShadowBoundary::No); |
| 1864 | if (NS_WARN_IF(err.Failed())NS_warn_if_impl(err.Failed(), "err.Failed()", "/var/lib/jenkins/workspace/firefox-scan-build/dom/serializers/nsDocumentEncoder.cpp" , 1864)) { |
| 1865 | return err.StealNSResult(); |
| 1866 | } |
| 1867 | return NS_OK; |
| 1868 | } |
| 1869 | |
| 1870 | // PromoteAncestorChain will promote a range represented by |
| 1871 | // [{*ioNode,*ioStartOffset} , {*ioNode,*ioEndOffset}] The promotion is |
| 1872 | // different from that found in getPromotedPoint: it will only promote one |
| 1873 | // endpoint if it can promote the other. Thus, instead of having a |
| 1874 | // startnode/endNode, there is just the one ioNode. |
| 1875 | nsresult nsHTMLCopyEncoder::PromoteAncestorChain(nsCOMPtr<nsINode>* ioNode, |
| 1876 | int32_t* ioStartOffset, |
| 1877 | int32_t* ioEndOffset) { |
| 1878 | if (!ioNode || !ioStartOffset || !ioEndOffset) return NS_ERROR_NULL_POINTER; |
| 1879 | |
| 1880 | nsresult rv = NS_OK; |
| 1881 | bool done = false; |
| 1882 | |
| 1883 | nsCOMPtr<nsINode> frontNode, endNode, parent; |
| 1884 | int32_t frontOffset, endOffset; |
| 1885 | |
| 1886 | // save the editable state of the ioNode, so we don't promote an ancestor if |
| 1887 | // it has different editable state |
| 1888 | nsCOMPtr<nsINode> node = *ioNode; |
| 1889 | bool isEditable = node->IsEditable(); |
| 1890 | |
| 1891 | // loop for as long as we can promote both endpoints |
| 1892 | while (!done) { |
| 1893 | node = *ioNode; |
| 1894 | parent = node->GetParentNode(); |
| 1895 | if (!parent) { |
| 1896 | done = true; |
| 1897 | } else { |
| 1898 | // passing parent as last param to GetPromotedPoint() allows it to promote |
| 1899 | // only one level up the hierarchy. |
| 1900 | rv = GetPromotedPoint(kStart, *ioNode, *ioStartOffset, |
| 1901 | address_of(frontNode), &frontOffset, parent); |
| 1902 | 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/dom/serializers/nsDocumentEncoder.cpp" , 1902); return rv; } } while (false); |
| 1903 | // then we make the same attempt with the endpoint |
| 1904 | rv = GetPromotedPoint(kEnd, *ioNode, *ioEndOffset, address_of(endNode), |
| 1905 | &endOffset, parent); |
| 1906 | 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/dom/serializers/nsDocumentEncoder.cpp" , 1906); return rv; } } while (false); |
| 1907 | |
| 1908 | // if both endpoints were promoted one level and isEditable is the same as |
| 1909 | // the original node, keep looping - otherwise we are done. |
| 1910 | if ((frontNode != parent) || (endNode != parent) || |
| 1911 | (frontNode->IsEditable() != isEditable)) |
| 1912 | done = true; |
| 1913 | else { |
| 1914 | *ioNode = frontNode; |
| 1915 | *ioStartOffset = frontOffset; |
| 1916 | *ioEndOffset = endOffset; |
| 1917 | } |
| 1918 | } |
| 1919 | } |
| 1920 | return rv; |
| 1921 | } |
| 1922 | |
| 1923 | nsresult nsHTMLCopyEncoder::GetPromotedPoint(Endpoint aWhere, nsINode* aNode, |
| 1924 | int32_t aOffset, |
| 1925 | nsCOMPtr<nsINode>* outNode, |
| 1926 | int32_t* outOffset, |
| 1927 | nsINode* common) { |
| 1928 | nsresult rv = NS_OK; |
| 1929 | nsCOMPtr<nsINode> node = aNode; |
| 1930 | nsCOMPtr<nsINode> parent = aNode; |
| 1931 | int32_t offset = aOffset; |
| 1932 | bool bResetPromotion = false; |
| 1933 | |
| 1934 | // default values |
| 1935 | *outNode = node; |
| 1936 | *outOffset = offset; |
| 1937 | |
| 1938 | if (common == node) return NS_OK; |
| 1939 | |
| 1940 | if (aWhere == kStart) { |
| 1941 | // some special casing for text nodes |
| 1942 | if (auto nodeAsText = aNode->GetAsText()) { |
| 1943 | // if not at beginning of text node, we are done |
| 1944 | if (offset > 0) { |
| 1945 | // unless everything before us in just whitespace. NOTE: we need a more |
| 1946 | // general solution that truly detects all cases of non-significant |
| 1947 | // whitesace with no false alarms. |
| 1948 | nsAutoString text; |
| 1949 | nodeAsText->SubstringData(0, offset, text, IgnoreErrors()); |
| 1950 | text.CompressWhitespace(); |
| 1951 | if (!text.IsEmpty()) return NS_OK; |
| 1952 | bResetPromotion = true; |
| 1953 | } |
| 1954 | // else |
| 1955 | rv = GetNodeLocation(aNode, address_of(parent), &offset); |
| 1956 | 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/dom/serializers/nsDocumentEncoder.cpp" , 1956); return rv; } } while (false); |
| 1957 | } else { |
| 1958 | node = GetChildAt(parent, offset); |
| 1959 | } |
| 1960 | if (!node) node = parent; |
| 1961 | |
| 1962 | // finding the real start for this point. look up the tree for as long as |
| 1963 | // we are the first node in the container, and as long as we haven't hit the |
| 1964 | // body node. |
| 1965 | if (!IsRoot(node) && (parent != common)) { |
| 1966 | rv = GetNodeLocation(node, address_of(parent), &offset); |
| 1967 | 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/dom/serializers/nsDocumentEncoder.cpp" , 1967); return rv; } } while (false); |
| 1968 | if (offset == -1) return NS_OK; // we hit generated content; STOP |
| 1969 | while ((IsFirstNode(node)) && (!IsRoot(parent)) && (parent != common)) { |
| 1970 | if (bResetPromotion) { |
| 1971 | nsCOMPtr<nsIContent> content = nsIContent::FromNodeOrNull(parent); |
| 1972 | if (content && content->IsHTMLElement()) { |
| 1973 | if (nsHTMLElement::IsBlock( |
| 1974 | nsHTMLTags::AtomTagToId(content->NodeInfo()->NameAtom()))) { |
| 1975 | bResetPromotion = false; |
| 1976 | } |
| 1977 | } |
| 1978 | } |
| 1979 | |
| 1980 | node = parent; |
| 1981 | rv = GetNodeLocation(node, address_of(parent), &offset); |
| 1982 | 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/dom/serializers/nsDocumentEncoder.cpp" , 1982); return rv; } } while (false); |
| 1983 | if (offset == -1) // we hit generated content; STOP |
| 1984 | { |
| 1985 | // back up a bit |
| 1986 | parent = node; |
| 1987 | offset = 0; |
| 1988 | break; |
| 1989 | } |
| 1990 | } |
| 1991 | if (bResetPromotion) { |
| 1992 | *outNode = aNode; |
| 1993 | *outOffset = aOffset; |
| 1994 | } else { |
| 1995 | *outNode = parent; |
| 1996 | *outOffset = offset; |
| 1997 | } |
| 1998 | return rv; |
| 1999 | } |
| 2000 | } |
| 2001 | |
| 2002 | if (aWhere == kEnd) { |
| 2003 | // some special casing for text nodes |
| 2004 | if (auto nodeAsText = aNode->GetAsText()) { |
| 2005 | // if not at end of text node, we are done |
| 2006 | uint32_t len = aNode->Length(); |
| 2007 | if (offset < (int32_t)len) { |
| 2008 | // unless everything after us in just whitespace. NOTE: we need a more |
| 2009 | // general solution that truly detects all cases of non-significant |
| 2010 | // whitespace with no false alarms. |
| 2011 | nsAutoString text; |
| 2012 | nodeAsText->SubstringData(offset, len - offset, text, IgnoreErrors()); |
| 2013 | text.CompressWhitespace(); |
| 2014 | if (!text.IsEmpty()) return NS_OK; |
| 2015 | bResetPromotion = true; |
| 2016 | } |
| 2017 | rv = GetNodeLocation(aNode, address_of(parent), &offset); |
| 2018 | 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/dom/serializers/nsDocumentEncoder.cpp" , 2018); return rv; } } while (false); |
| 2019 | } else { |
| 2020 | if (offset) offset--; // we want node _before_ offset |
| 2021 | node = GetChildAt(parent, offset); |
| 2022 | } |
| 2023 | if (!node) node = parent; |
| 2024 | |
| 2025 | // finding the real end for this point. look up the tree for as long as we |
| 2026 | // are the last node in the container, and as long as we haven't hit the |
| 2027 | // body node. |
| 2028 | if (!IsRoot(node) && (parent != common)) { |
| 2029 | rv = GetNodeLocation(node, address_of(parent), &offset); |
| 2030 | 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/dom/serializers/nsDocumentEncoder.cpp" , 2030); return rv; } } while (false); |
| 2031 | if (offset == -1) return NS_OK; // we hit generated content; STOP |
| 2032 | while ((IsLastNode(node)) && (!IsRoot(parent)) && (parent != common)) { |
| 2033 | if (bResetPromotion) { |
| 2034 | nsCOMPtr<nsIContent> content = nsIContent::FromNodeOrNull(parent); |
| 2035 | if (content && content->IsHTMLElement()) { |
| 2036 | if (nsHTMLElement::IsBlock( |
| 2037 | nsHTMLTags::AtomTagToId(content->NodeInfo()->NameAtom()))) { |
| 2038 | bResetPromotion = false; |
| 2039 | } |
| 2040 | } |
| 2041 | } |
| 2042 | |
| 2043 | node = parent; |
| 2044 | rv = GetNodeLocation(node, address_of(parent), &offset); |
| 2045 | 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/dom/serializers/nsDocumentEncoder.cpp" , 2045); return rv; } } while (false); |
| 2046 | |
| 2047 | // When node is the shadow root and parent is the shadow host, |
| 2048 | // the offset would also be -1, and we'd like to keep going. |
| 2049 | const bool isGeneratedContent = |
| 2050 | offset == -1 && |
| 2051 | ShadowDOMSelectionHelpers::GetShadowRoot( |
| 2052 | parent, |
| 2053 | mFlags & nsIDocumentEncoder::AllowCrossShadowBoundary) != node; |
| 2054 | if (isGeneratedContent) // we hit generated content; STOP |
| 2055 | { |
| 2056 | // back up a bit |
| 2057 | parent = node; |
| 2058 | offset = 0; |
| 2059 | break; |
| 2060 | } |
| 2061 | } |
| 2062 | if (bResetPromotion) { |
| 2063 | *outNode = aNode; |
| 2064 | *outOffset = aOffset; |
| 2065 | } else { |
| 2066 | *outNode = parent; |
| 2067 | offset++; // add one since this in an endpoint - want to be AFTER node. |
| 2068 | *outOffset = offset; |
| 2069 | } |
| 2070 | return rv; |
| 2071 | } |
| 2072 | } |
| 2073 | |
| 2074 | return rv; |
| 2075 | } |
| 2076 | |
| 2077 | nsCOMPtr<nsINode> nsHTMLCopyEncoder::GetChildAt(nsINode* aParent, |
| 2078 | int32_t aOffset) { |
| 2079 | nsCOMPtr<nsINode> resultNode; |
| 2080 | |
| 2081 | if (!aParent) return resultNode; |
| 2082 | |
| 2083 | nsCOMPtr<nsIContent> content = nsIContent::FromNodeOrNull(aParent); |
| 2084 | MOZ_ASSERT(content, "null content in nsHTMLCopyEncoder::GetChildAt")do { static_assert( mozilla::detail::AssertionConditionType< decltype(content)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(content))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("content" " (" "null content in nsHTMLCopyEncoder::GetChildAt" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/serializers/nsDocumentEncoder.cpp" , 2084); AnnotateMozCrashReason("MOZ_ASSERT" "(" "content" ") (" "null content in nsHTMLCopyEncoder::GetChildAt" ")"); do { * ((volatile int*)__null) = 2084; __attribute__((nomerge)) ::abort (); } while (false); } } while (false); |
| 2085 | |
| 2086 | resultNode = content->GetChildAt_Deprecated(aOffset); |
| 2087 | |
| 2088 | return resultNode; |
| 2089 | } |
| 2090 | |
| 2091 | bool nsHTMLCopyEncoder::IsMozBR(Element* aElement) { |
| 2092 | HTMLBRElement* brElement = HTMLBRElement::FromNodeOrNull(aElement); |
| 2093 | return brElement && brElement->IsPaddingForEmptyLastLine(); |
| 2094 | } |
| 2095 | |
| 2096 | nsresult nsHTMLCopyEncoder::GetNodeLocation(nsINode* inChild, |
| 2097 | nsCOMPtr<nsINode>* outParent, |
| 2098 | int32_t* outOffset) { |
| 2099 | NS_ASSERTION((inChild && outParent && outOffset), "bad args")do { if (!((inChild && outParent && outOffset ))) { NS_DebugBreak(NS_DEBUG_ASSERTION, "bad args", "(inChild && outParent && outOffset)" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/serializers/nsDocumentEncoder.cpp" , 2099); MOZ_PretendNoReturn(); } } while (0); |
| 2100 | if (inChild && outParent && outOffset) { |
| 2101 | nsCOMPtr<nsIContent> child = nsIContent::FromNodeOrNull(inChild); |
| 2102 | if (!child) { |
| 2103 | return NS_ERROR_NULL_POINTER; |
| 2104 | } |
| 2105 | |
| 2106 | nsINode* parent = mFlags & nsIDocumentEncoder::AllowCrossShadowBoundary |
| 2107 | ? child->GetParentOrShadowHostNode() |
| 2108 | : child->GetParent(); |
| 2109 | if (!parent) { |
| 2110 | return NS_ERROR_NULL_POINTER; |
| 2111 | } |
| 2112 | |
| 2113 | *outParent = parent; |
| 2114 | *outOffset = parent->ComputeIndexOf_Deprecated(child); |
| 2115 | return NS_OK; |
| 2116 | } |
| 2117 | return NS_ERROR_NULL_POINTER; |
| 2118 | } |
| 2119 | |
| 2120 | bool nsHTMLCopyEncoder::IsRoot(nsINode* aNode) { |
| 2121 | nsCOMPtr<nsIContent> content = nsIContent::FromNodeOrNull(aNode); |
| 2122 | if (!content) { |
| 2123 | return false; |
| 2124 | } |
| 2125 | |
| 2126 | if (mIsTextWidget) { |
| 2127 | return content->IsHTMLElement(nsGkAtoms::div); |
| 2128 | } |
| 2129 | |
| 2130 | return content->IsAnyOfHTMLElements(nsGkAtoms::body, nsGkAtoms::td, |
| 2131 | nsGkAtoms::th); |
| 2132 | } |
| 2133 | |
| 2134 | bool nsHTMLCopyEncoder::IsFirstNode(nsINode* aNode) { |
| 2135 | // need to check if any nodes before us are really visible. |
| 2136 | // Mike wrote something for me along these lines in nsSelectionController, |
| 2137 | // but I don't think it's ready for use yet - revisit. |
| 2138 | // HACK: for now, simply consider all whitespace text nodes to be |
| 2139 | // invisible formatting nodes. |
| 2140 | for (nsIContent* sibling = aNode->GetPreviousSibling(); sibling; |
| 2141 | sibling = sibling->GetPreviousSibling()) { |
| 2142 | if (!sibling->TextIsOnlyWhitespace()) { |
| 2143 | return false; |
| 2144 | } |
| 2145 | } |
| 2146 | |
| 2147 | return true; |
| 2148 | } |
| 2149 | |
| 2150 | bool nsHTMLCopyEncoder::IsLastNode(nsINode* aNode) { |
| 2151 | // need to check if any nodes after us are really visible. |
| 2152 | // Mike wrote something for me along these lines in nsSelectionController, |
| 2153 | // but I don't think it's ready for use yet - revisit. |
| 2154 | // HACK: for now, simply consider all whitespace text nodes to be |
| 2155 | // invisible formatting nodes. |
| 2156 | for (nsIContent* sibling = aNode->GetNextSibling(); sibling; |
| 2157 | sibling = sibling->GetNextSibling()) { |
| 2158 | if (sibling->IsElement() && IsMozBR(sibling->AsElement())) { |
| 2159 | // we ignore trailing moz BRs. |
| 2160 | continue; |
| 2161 | } |
| 2162 | if (!sibling->TextIsOnlyWhitespace()) { |
| 2163 | return false; |
| 2164 | } |
| 2165 | } |
| 2166 | |
| 2167 | return true; |
| 2168 | } |
| 2169 | |
| 2170 | already_AddRefed<nsIDocumentEncoder> do_createHTMLCopyEncoder() { |
| 2171 | return do_AddRef(new nsHTMLCopyEncoder); |
| 2172 | } |
| 2173 | |
| 2174 | int32_t nsHTMLCopyEncoder::RangeNodeContext::GetImmediateContextCount( |
| 2175 | const nsTArray<nsINode*>& aAncestorArray) const { |
| 2176 | int32_t i = aAncestorArray.Length(), j = 0; |
| 2177 | while (j < i) { |
| 2178 | nsINode* node = aAncestorArray.ElementAt(j); |
| 2179 | if (!node) { |
| 2180 | break; |
| 2181 | } |
| 2182 | nsCOMPtr<nsIContent> content(nsIContent::FromNodeOrNull(node)); |
| 2183 | if (!content || !content->IsAnyOfHTMLElements( |
| 2184 | nsGkAtoms::tr, nsGkAtoms::thead, nsGkAtoms::tbody, |
| 2185 | nsGkAtoms::tfoot, nsGkAtoms::table)) { |
| 2186 | break; |
| 2187 | } |
| 2188 | ++j; |
| 2189 | } |
| 2190 | return j; |
| 2191 | } |