From 206e93e61e541ae28e003d398136352a168194d2 Mon Sep 17 00:00:00 2001 From: David Creswick Date: Sat, 6 Apr 2013 12:38:56 -0500 Subject: [PATCH] Bug 856317 - Expose the column number of style rules via inIDOMUtils. r=dbaron --- layout/inspector/public/inIDOMUtils.idl | 3 +- layout/inspector/src/inDOMUtils.cpp | 12 ++++ layout/inspector/tests/Makefile.in | 2 + layout/inspector/tests/bug856317.css | 23 ++++++ layout/inspector/tests/test_bug856317.html | 84 ++++++++++++++++++++++ layout/style/StyleRule.cpp | 3 + layout/style/StyleRule.h | 8 ++- layout/style/nsCSSParser.cpp | 23 +++++- 8 files changed, 152 insertions(+), 6 deletions(-) create mode 100644 layout/inspector/tests/bug856317.css create mode 100644 layout/inspector/tests/test_bug856317.html diff --git a/layout/inspector/public/inIDOMUtils.idl b/layout/inspector/public/inIDOMUtils.idl index cc0ec3355dcc..857e1a1533bf 100644 --- a/layout/inspector/public/inIDOMUtils.idl +++ b/layout/inspector/public/inIDOMUtils.idl @@ -16,12 +16,13 @@ interface nsIDOMFontFaceList; interface nsIDOMRange; interface nsIDOMCSSStyleSheet; -[scriptable, uuid(1d9c29dc-230a-441e-bba9-49104ffa185e)] +[scriptable, uuid(c10e5142-e936-45d7-ad5b-21a32ce739a3)] interface inIDOMUtils : nsISupports { // CSS utilities nsISupportsArray getCSSStyleRules(in nsIDOMElement aElement, [optional] in DOMString aPseudo); unsigned long getRuleLine(in nsIDOMCSSStyleRule aRule); + unsigned long getRuleColumn(in nsIDOMCSSStyleRule aRule); // Utilities for working with selectors. We don't have a JS OM representation // of a single selector or a selector list yet, but given a rule we can index diff --git a/layout/inspector/src/inDOMUtils.cpp b/layout/inspector/src/inDOMUtils.cpp index 0ac131863f7b..23eaab48ca85 100644 --- a/layout/inspector/src/inDOMUtils.cpp +++ b/layout/inspector/src/inDOMUtils.cpp @@ -230,6 +230,18 @@ inDOMUtils::GetRuleLine(nsIDOMCSSStyleRule *aRule, uint32_t *_retval) return NS_OK; } +NS_IMETHODIMP +inDOMUtils::GetRuleColumn(nsIDOMCSSStyleRule *aRule, uint32_t *_retval) +{ + ErrorResult rv; + nsRefPtr rule = GetRuleFromDOMRule(aRule, rv); + if (rv.Failed()) { + return rv.ErrorCode(); + } + *_retval = rule->GetColumnNumber(); + return NS_OK; +} + NS_IMETHODIMP inDOMUtils::GetSelectorCount(nsIDOMCSSStyleRule* aRule, uint32_t *aCount) { diff --git a/layout/inspector/tests/Makefile.in b/layout/inspector/tests/Makefile.in index fbf100a54b36..f7c9947abe72 100644 --- a/layout/inspector/tests/Makefile.in +++ b/layout/inspector/tests/Makefile.in @@ -20,6 +20,8 @@ MOCHITEST_FILES =\ test_bug557726.html \ test_bug609549.xhtml \ test_bug806192.html \ + test_bug856317.html \ + bug856317.css \ test_isinheritableproperty.html \ $(NULL) diff --git a/layout/inspector/tests/bug856317.css b/layout/inspector/tests/bug856317.css new file mode 100644 index 000000000000..49691e3ebeb1 --- /dev/null +++ b/layout/inspector/tests/bug856317.css @@ -0,0 +1,23 @@ +/* + * Bug 856317 - expose the column number of style rules via inIDOMUtils + */ + +/* simplest possible */ +.alpha { +} + +/* with leading whitespace */ + #beta { + } + +/* with a comment before the rule */ #gamma { +} + +/* mixed spaces and tab characters */ + #delta { +} + +/* long lines, like those produced by CSS minifiers + * (overflows a 16-bit unsigned int) + */ + .epsilon{ background-image: url("xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx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diff --git a/layout/inspector/tests/test_bug856317.html b/layout/inspector/tests/test_bug856317.html new file mode 100644 index 000000000000..b07b6ec1d47f --- /dev/null +++ b/layout/inspector/tests/test_bug856317.html @@ -0,0 +1,84 @@ + + + + + Test for Bug 856317 + + + + + + + + + diff --git a/layout/style/StyleRule.cpp b/layout/style/StyleRule.cpp index f303fb3c17ec..e17fda707743 100644 --- a/layout/style/StyleRule.cpp +++ b/layout/style/StyleRule.cpp @@ -1281,6 +1281,7 @@ StyleRule::StyleRule(nsCSSSelectorList* aSelector, mImportantRule(nullptr), mDOMRule(nullptr), mLineNumber(0), + mColumnNumber(0), mWasMatched(false) { NS_PRECONDITION(aDeclaration, "must have a declaration"); @@ -1294,6 +1295,7 @@ StyleRule::StyleRule(const StyleRule& aCopy) mImportantRule(nullptr), mDOMRule(nullptr), mLineNumber(aCopy.mLineNumber), + mColumnNumber(aCopy.mColumnNumber), mWasMatched(false) { // rest is constructed lazily on existing data @@ -1308,6 +1310,7 @@ StyleRule::StyleRule(StyleRule& aCopy, mImportantRule(nullptr), mDOMRule(aCopy.mDOMRule), mLineNumber(aCopy.mLineNumber), + mColumnNumber(aCopy.mColumnNumber), mWasMatched(false) { // The DOM rule is replacing |aCopy| with |this|, so transfer diff --git a/layout/style/StyleRule.h b/layout/style/StyleRule.h index 6f8563c22ea9..bc76297b2486 100644 --- a/layout/style/StyleRule.h +++ b/layout/style/StyleRule.h @@ -317,7 +317,10 @@ public: nsCSSSelectorList* Selector() { return mSelector; } uint32_t GetLineNumber() const { return mLineNumber; } - void SetLineNumber(uint32_t aLineNumber) { mLineNumber = aLineNumber; } + uint32_t GetColumnNumber() const { return mColumnNumber; } + void SetLineNumberAndColumnNumber(uint32_t aLineNumber, + uint32_t aColumnNumber) + { mLineNumber = aLineNumber; mColumnNumber = aColumnNumber; } Declaration* GetDeclaration() const { return mDeclaration; } @@ -373,7 +376,8 @@ private: ImportantRule* mImportantRule; // initialized by RuleMatched DOMCSSStyleRule* mDOMRule; // Keep the same type so that MSVC packs them. - uint32_t mLineNumber : 31; + uint32_t mLineNumber; + uint32_t mColumnNumber : 31; uint32_t mWasMatched : 1; private: diff --git a/layout/style/nsCSSParser.cpp b/layout/style/nsCSSParser.cpp index 613d3094a764..9021d1ae51f7 100644 --- a/layout/style/nsCSSParser.cpp +++ b/layout/style/nsCSSParser.cpp @@ -331,6 +331,7 @@ protected: bool GetToken(bool aSkipWS); void UngetToken(); + bool GetNextTokenLocation(bool aSkipWS, uint32_t *linenum, uint32_t *colnum); bool ExpectSymbol(PRUnichar aSymbol, bool aSkipWS); bool ExpectEndProperty(); @@ -1436,6 +1437,21 @@ CSSParserImpl::UngetToken() mHavePushBack = true; } +bool +CSSParserImpl::GetNextTokenLocation(bool aSkipWS, uint32_t *linenum, uint32_t *colnum) +{ + // Peek at next token so that mScanner updates line and column vals + if (!GetToken(aSkipWS)) { + return false; + } + UngetToken(); + // The scanner uses one-indexing for line numbers but zero-indexing + // for column numbers. + *linenum = mScanner->GetLineNumber(); + *colnum = 1 + mScanner->GetColumnNumber(); + return true; +} + bool CSSParserImpl::ExpectSymbol(PRUnichar aSymbol, bool aSkipWS) @@ -2888,8 +2904,9 @@ CSSParserImpl::ParseRuleSet(RuleAppendFunc aAppendFunc, void* aData, { // First get the list of selectors for the rule nsCSSSelectorList* slist = nullptr; - uint32_t linenum = mScanner->GetLineNumber(); - if (! ParseSelectorList(slist, PRUnichar('{'))) { + uint32_t linenum, colnum; + if (!GetNextTokenLocation(true, &linenum, &colnum) || + !ParseSelectorList(slist, PRUnichar('{'))) { REPORT_UNEXPECTED(PEBadSelectorRSIgnored); OUTPUT_ERROR(); SkipRuleSet(aInsideBraces); @@ -2917,7 +2934,7 @@ CSSParserImpl::ParseRuleSet(RuleAppendFunc aAppendFunc, void* aData, // Translate the selector list and declaration block into style data nsRefPtr rule = new css::StyleRule(slist, declaration); - rule->SetLineNumber(linenum); + rule->SetLineNumberAndColumnNumber(linenum, colnum); (*aAppendFunc)(rule, aData); return true;