wine/gecko
0
0
Fork 0
mirror of https://gitlab.winehq.org/wine/wine-gecko.git synced 2024-09-13 09:24:08 -07:00
Code Issues Packages Projects Releases Wiki Activity
88c83107b4
gecko/layout/inspector/inDOMUtils.cpp
Phil Ringnalda 5cc5a1f24c Back out 9 changesets (bug 649142) 
Backed out changeset 936703c75200 (bug 649142)
Backed out changeset b0252d2620d8 (bug 649142)
Backed out changeset 69ddb2036c50 (bug 649142)
Backed out changeset 67748675e669 (bug 649142)
Backed out changeset 15ed55c61f4e (bug 649142)
Backed out changeset 35c42cd138e1 (bug 649142)
Backed out changeset 1335630cf287 (bug 649142)
Backed out changeset b5725cd39a31 (bug 649142)
Backed out changeset b0eb691d6695 (bug 649142)
2014-12-30 20:04:20 -08:00

1107 lines
32 KiB
C++
Raw Blame History

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "mozilla/ArrayUtils.h"
#include "mozilla/EventStates.h"
#include "inDOMUtils.h"
#include "inLayoutUtils.h"
#include "nsIServiceManager.h"
#include "nsISupportsArray.h"
#include "nsString.h"
#include "nsIDOMElement.h"
#include "nsIDocument.h"
#include "nsIPresShell.h"
#include "nsIDOMDocument.h"
#include "nsIDOMCharacterData.h"
#include "nsRuleNode.h"
#include "nsIStyleRule.h"
#include "mozilla/css/StyleRule.h"
#include "nsICSSStyleRuleDOMWrapper.h"
#include "nsIDOMWindow.h"
#include "nsXBLBinding.h"
#include "nsXBLPrototypeBinding.h"
#include "nsIMutableArray.h"
#include "nsBindingManager.h"
#include "ChildIterator.h"
#include "nsComputedDOMStyle.h"
#include "mozilla/EventStateManager.h"
#include "nsIAtom.h"
#include "nsRange.h"
#include "nsContentList.h"
#include "mozilla/CSSStyleSheet.h"
#include "mozilla/dom/Element.h"
#include "nsRuleWalker.h"
#include "nsRuleProcessorData.h"
#include "nsCSSRuleProcessor.h"
#include "mozilla/dom/InspectorUtilsBinding.h"
#include "mozilla/dom/ToJSValue.h"
#include "nsCSSParser.h"
#include "nsCSSProps.h"
#include "nsCSSValue.h"
#include "nsColor.h"
#include "nsStyleSet.h"
#include "nsStyleUtil.h"
using namespace mozilla;
using namespace mozilla::css;
using namespace mozilla::dom;
///////////////////////////////////////////////////////////////////////////////
inDOMUtils::inDOMUtils()
{
}
inDOMUtils::~inDOMUtils()
{
}
NS_IMPL_ISUPPORTS(inDOMUtils, inIDOMUtils)
///////////////////////////////////////////////////////////////////////////////
// inIDOMUtils
NS_IMETHODIMP
inDOMUtils::GetAllStyleSheets(nsIDOMDocument *aDocument, uint32_t *aLength,
nsISupports ***aSheets)
{
NS_ENSURE_ARG_POINTER(aDocument);
nsCOMArray<nsISupports> sheets;
nsCOMPtr<nsIDocument> document = do_QueryInterface(aDocument);
MOZ_ASSERT(document);
// Get the agent, then user sheets in the style set.
nsIPresShell* presShell = document->GetShell();
if (presShell) {
nsStyleSet* styleSet = presShell->StyleSet();
nsStyleSet::sheetType sheetType = nsStyleSet::eAgentSheet;
for (int32_t i = 0; i < styleSet->SheetCount(sheetType); i++) {
sheets.AppendElement(styleSet->StyleSheetAt(sheetType, i));
}
sheetType = nsStyleSet::eUserSheet;
for (int32_t i = 0; i < styleSet->SheetCount(sheetType); i++) {
sheets.AppendElement(styleSet->StyleSheetAt(sheetType, i));
}
}
// Get the document sheets.
for (int32_t i = 0; i < document->GetNumberOfStyleSheets(); i++) {
sheets.AppendElement(document->GetStyleSheetAt(i));
}
nsISupports** ret = static_cast<nsISupports**>(NS_Alloc(sheets.Count() *
sizeof(nsISupports*)));
for (int32_t i = 0; i < sheets.Count(); i++) {
NS_ADDREF(ret[i] = sheets[i]);
}
*aLength = sheets.Count();
*aSheets = ret;
return NS_OK;
}
NS_IMETHODIMP
inDOMUtils::IsIgnorableWhitespace(nsIDOMCharacterData *aDataNode,
bool *aReturn)
{
NS_PRECONDITION(aReturn, "Must have an out parameter");
NS_ENSURE_ARG_POINTER(aDataNode);
*aReturn = false;
nsCOMPtr<nsIContent> content = do_QueryInterface(aDataNode);
NS_ASSERTION(content, "Does not implement nsIContent!");
if (!content->TextIsOnlyWhitespace()) {
return NS_OK;
}
// Okay. We have only white space. Let's check the white-space
// property now and make sure that this isn't preformatted text...
nsIFrame* frame = content->GetPrimaryFrame();
if (frame) {
const nsStyleText* text = frame->StyleText();
*aReturn = !text->WhiteSpaceIsSignificant();
}
else {
// empty inter-tag text node without frame, e.g., in between <table>\n<tr>
*aReturn = true;
}
return NS_OK;
}
NS_IMETHODIMP
inDOMUtils::GetParentForNode(nsIDOMNode* aNode,
bool aShowingAnonymousContent,
nsIDOMNode** aParent)
{
NS_ENSURE_ARG_POINTER(aNode);
// First do the special cases -- document nodes and anonymous content
nsCOMPtr<nsIDocument> doc(do_QueryInterface(aNode));
nsCOMPtr<nsIDOMNode> parent;
if (doc) {
parent = inLayoutUtils::GetContainerFor(*doc);
} else if (aShowingAnonymousContent) {
nsCOMPtr<nsIContent> content = do_QueryInterface(aNode);
if (content) {
nsIContent* bparent = content->GetFlattenedTreeParent();
parent = do_QueryInterface(bparent);
}
}
if (!parent) {
// Ok, just get the normal DOM parent node
aNode->GetParentNode(getter_AddRefs(parent));
}
NS_IF_ADDREF(*aParent = parent);
return NS_OK;
}
NS_IMETHODIMP
inDOMUtils::GetChildrenForNode(nsIDOMNode* aNode,
bool aShowingAnonymousContent,
nsIDOMNodeList** aChildren)
{
NS_ENSURE_ARG_POINTER(aNode);
NS_PRECONDITION(aChildren, "Must have an out parameter");
nsCOMPtr<nsIDOMNodeList> kids;
if (aShowingAnonymousContent) {
nsCOMPtr<nsIContent> content = do_QueryInterface(aNode);
if (content) {
kids = content->GetChildren(nsIContent::eAllChildren);
}
}
if (!kids) {
aNode->GetChildNodes(getter_AddRefs(kids));
}
kids.forget(aChildren);
return NS_OK;
}
NS_IMETHODIMP
inDOMUtils::GetCSSStyleRules(nsIDOMElement *aElement,
const nsAString& aPseudo,
nsISupportsArray **_retval)
{
NS_ENSURE_ARG_POINTER(aElement);
*_retval = nullptr;
nsCOMPtr<nsIAtom> pseudoElt;
if (!aPseudo.IsEmpty()) {
pseudoElt = do_GetAtom(aPseudo);
}
nsRuleNode* ruleNode = nullptr;
nsCOMPtr<Element> element = do_QueryInterface(aElement);
NS_ENSURE_STATE(element);
nsRefPtr<nsStyleContext> styleContext;
GetRuleNodeForElement(element, pseudoElt, getter_AddRefs(styleContext), &ruleNode);
if (!ruleNode) {
// This can fail for elements that are not in the document or
// if the document they're in doesn't have a presshell. Bail out.
return NS_OK;
}
nsCOMPtr<nsISupportsArray> rules;
NS_NewISupportsArray(getter_AddRefs(rules));
if (!rules) return NS_ERROR_OUT_OF_MEMORY;
nsRefPtr<mozilla::css::StyleRule> cssRule;
for ( ; !ruleNode->IsRoot(); ruleNode = ruleNode->GetParent()) {
cssRule = do_QueryObject(ruleNode->GetRule());
if (cssRule) {
nsCOMPtr<nsIDOMCSSRule> domRule = cssRule->GetDOMRule();
if (domRule)
rules->InsertElementAt(domRule, 0);
}
}
*_retval = rules;
NS_ADDREF(*_retval);
return NS_OK;
}
static already_AddRefed<StyleRule>
GetRuleFromDOMRule(nsIDOMCSSStyleRule *aRule, ErrorResult& rv)
{
nsCOMPtr<nsICSSStyleRuleDOMWrapper> rule = do_QueryInterface(aRule);
if (!rule) {
rv.Throw(NS_ERROR_INVALID_POINTER);
return nullptr;
}
nsRefPtr<StyleRule> cssrule;
rv = rule->GetCSSStyleRule(getter_AddRefs(cssrule));
if (rv.Failed()) {
return nullptr;
}
if (!cssrule) {
rv.Throw(NS_ERROR_FAILURE);
}
return cssrule.forget();
}
NS_IMETHODIMP
inDOMUtils::GetRuleLine(nsIDOMCSSRule* aRule, uint32_t* _retval)
{
NS_ENSURE_ARG_POINTER(aRule);
Rule* rule = aRule->GetCSSRule();
if (!rule) {
return NS_ERROR_FAILURE;
}
*_retval = rule->GetLineNumber();
return NS_OK;
}
NS_IMETHODIMP
inDOMUtils::GetRuleColumn(nsIDOMCSSRule* aRule, uint32_t* _retval)
{
NS_ENSURE_ARG_POINTER(aRule);
Rule* rule = aRule->GetCSSRule();
if (!rule) {
return NS_ERROR_FAILURE;
}
*_retval = rule->GetColumnNumber();
return NS_OK;
}
NS_IMETHODIMP
inDOMUtils::GetSelectorCount(nsIDOMCSSStyleRule* aRule, uint32_t *aCount)
{
ErrorResult rv;
nsRefPtr<StyleRule> rule = GetRuleFromDOMRule(aRule, rv);
if (rv.Failed()) {
return rv.ErrorCode();
}
uint32_t count = 0;
for (nsCSSSelectorList* sel = rule->Selector(); sel; sel = sel->mNext) {
++count;
}
*aCount = count;
return NS_OK;
}
static nsCSSSelectorList*
GetSelectorAtIndex(nsIDOMCSSStyleRule* aRule, uint32_t aIndex, ErrorResult& rv)
{
nsRefPtr<StyleRule> rule = GetRuleFromDOMRule(aRule, rv);
if (rv.Failed()) {
return nullptr;
}
for (nsCSSSelectorList* sel = rule->Selector(); sel;
sel = sel->mNext, --aIndex) {
if (aIndex == 0) {
return sel;
}
}
// Ran out of selectors
rv.Throw(NS_ERROR_INVALID_ARG);
return nullptr;
}
NS_IMETHODIMP
inDOMUtils::GetSelectorText(nsIDOMCSSStyleRule* aRule,
uint32_t aSelectorIndex,
nsAString& aText)
{
ErrorResult rv;
nsCSSSelectorList* sel = GetSelectorAtIndex(aRule, aSelectorIndex, rv);
if (rv.Failed()) {
return rv.ErrorCode();
}
nsRefPtr<StyleRule> rule = GetRuleFromDOMRule(aRule, rv);
MOZ_ASSERT(!rv.Failed(), "How could we get a selector but not a rule?");
sel->mSelectors->ToString(aText, rule->GetStyleSheet(), false);
return NS_OK;
}
NS_IMETHODIMP
inDOMUtils::GetSpecificity(nsIDOMCSSStyleRule* aRule,
uint32_t aSelectorIndex,
uint64_t* aSpecificity)
{
ErrorResult rv;
nsCSSSelectorList* sel = GetSelectorAtIndex(aRule, aSelectorIndex, rv);
if (rv.Failed()) {
return rv.ErrorCode();
}
*aSpecificity = sel->mWeight;
return NS_OK;
}
NS_IMETHODIMP
inDOMUtils::SelectorMatchesElement(nsIDOMElement* aElement,
nsIDOMCSSStyleRule* aRule,
uint32_t aSelectorIndex,
const nsAString& aPseudo,
bool* aMatches)
{
nsCOMPtr<Element> element = do_QueryInterface(aElement);
NS_ENSURE_ARG_POINTER(element);
ErrorResult rv;
nsCSSSelectorList* tail = GetSelectorAtIndex(aRule, aSelectorIndex, rv);
if (rv.Failed()) {
return rv.ErrorCode();
}
// We want just the one list item, not the whole list tail
nsAutoPtr<nsCSSSelectorList> sel(tail->Clone(false));
// Do not attempt to match if a pseudo element is requested and this is not
// a pseudo element selector, or vice versa.
if (aPseudo.IsEmpty() == sel->mSelectors->IsPseudoElement()) {
*aMatches = false;
return NS_OK;
}
if (!aPseudo.IsEmpty()) {
// We need to make sure that the requested pseudo element type
// matches the selector pseudo element type before proceeding.
nsCOMPtr<nsIAtom> pseudoElt = do_GetAtom(aPseudo);
if (sel->mSelectors->PseudoType() !=
nsCSSPseudoElements::GetPseudoType(pseudoElt)) {
*aMatches = false;
return NS_OK;
}
// We have a matching pseudo element, now remove it so we can compare
// directly against |element| when proceeding into SelectorListMatches.
// It's OK to do this - we just cloned sel and nothing else is using it.
sel->RemoveRightmostSelector();
}
element->OwnerDoc()->FlushPendingLinkUpdates();
// XXXbz what exactly should we do with visited state here?
TreeMatchContext matchingContext(false,
nsRuleWalker::eRelevantLinkUnvisited,
element->OwnerDoc(),
TreeMatchContext::eNeverMatchVisited);
*aMatches = nsCSSRuleProcessor::SelectorListMatches(element, matchingContext,
sel);
return NS_OK;
}
NS_IMETHODIMP
inDOMUtils::IsInheritedProperty(const nsAString &aPropertyName, bool *_retval)
{
nsCSSProperty prop =
nsCSSProps::LookupProperty(aPropertyName, nsCSSProps::eIgnoreEnabledState);
if (prop == eCSSProperty_UNKNOWN) {
*_retval = false;
return NS_OK;
}
if (prop == eCSSPropertyExtra_variable) {
*_retval = true;
return NS_OK;
}
if (nsCSSProps::IsShorthand(prop)) {
prop = nsCSSProps::SubpropertyEntryFor(prop)[0];
}
nsStyleStructID sid = nsCSSProps::kSIDTable[prop];
*_retval = !nsCachedStyleData::IsReset(sid);
return NS_OK;
}
extern const char* const kCSSRawProperties[];
NS_IMETHODIMP
inDOMUtils::GetCSSPropertyNames(uint32_t aFlags, uint32_t* aCount,
char16_t*** aProps)
{
// maxCount is the largest number of properties we could have; our actual
// number might be smaller because properties might be disabled.
uint32_t maxCount;
if (aFlags & EXCLUDE_SHORTHANDS) {
maxCount = eCSSProperty_COUNT_no_shorthands;
} else {
maxCount = eCSSProperty_COUNT;
}
if (aFlags & INCLUDE_ALIASES) {
maxCount += (eCSSProperty_COUNT_with_aliases - eCSSProperty_COUNT);
}
char16_t** props =
static_cast<char16_t**>(nsMemory::Alloc(maxCount * sizeof(char16_t*)));
#define DO_PROP(_prop) \
PR_BEGIN_MACRO \
nsCSSProperty cssProp = nsCSSProperty(_prop); \
if (nsCSSProps::IsEnabled(cssProp)) { \
props[propCount] = \
ToNewUnicode(nsDependentCString(kCSSRawProperties[_prop])); \
++propCount; \
} \
PR_END_MACRO
// prop is the property id we're considering; propCount is how many properties
// we've put into props so far.
uint32_t prop = 0, propCount = 0;
for ( ; prop < eCSSProperty_COUNT_no_shorthands; ++prop) {
if (nsCSSProps::PropertyParseType(nsCSSProperty(prop)) !=
CSS_PROPERTY_PARSE_INACCESSIBLE) {
DO_PROP(prop);
}
}
if (!(aFlags & EXCLUDE_SHORTHANDS)) {
for ( ; prop < eCSSProperty_COUNT; ++prop) {
// Some shorthands are also aliases
if ((aFlags & INCLUDE_ALIASES) ||
!nsCSSProps::PropHasFlags(nsCSSProperty(prop),
CSS_PROPERTY_IS_ALIAS)) {
DO_PROP(prop);
}
}
}
if (aFlags & INCLUDE_ALIASES) {
for (prop = eCSSProperty_COUNT; prop < eCSSProperty_COUNT_with_aliases; ++prop) {
DO_PROP(prop);
}
}
#undef DO_PROP
*aCount = propCount;
*aProps = props;
return NS_OK;
}
static void InsertNoDuplicates(nsTArray<nsString>& aArray,
const nsAString& aString)
{
size_t i = aArray.IndexOfFirstElementGt(aString);
if (i > 0 && aArray[i-1].Equals(aString)) {
return;
}
aArray.InsertElementAt(i, aString);
}
static void GetKeywordsForProperty(const nsCSSProperty aProperty,
nsTArray<nsString>& aArray)
{
if (nsCSSProps::IsShorthand(aProperty)) {
// Shorthand props have no keywords.
return;
}
const nsCSSProps::KTableValue *keywordTable =
nsCSSProps::kKeywordTableTable[aProperty];
if (keywordTable && keywordTable != nsCSSProps::kBoxPropSourceKTable) {
size_t i = 0;
while (nsCSSKeyword(keywordTable[i]) != eCSSKeyword_UNKNOWN) {
nsCSSKeyword word = nsCSSKeyword(keywordTable[i]);
InsertNoDuplicates(aArray,
NS_ConvertASCIItoUTF16(nsCSSKeywords::GetStringValue(word)));
// Increment counter by 2, because in this table every second
// element is a nsCSSKeyword.
i += 2;
}
}
}
static void GetColorsForProperty(const uint32_t aParserVariant,
nsTArray<nsString>& aArray)
{
if (aParserVariant & VARIANT_COLOR) {
// GetKeywordsForProperty and GetOtherValuesForProperty assume aArray is sorted,
// and if aArray is not empty here, then it's not going to be sorted coming out.
MOZ_ASSERT(aArray.Length() == 0);
size_t size;
const char * const *allColorNames = NS_AllColorNames(&size);
for (size_t i = 0; i < size; i++) {
CopyASCIItoUTF16(allColorNames[i], *aArray.AppendElement());
}
}
return;
}
static void GetOtherValuesForProperty(const uint32_t aParserVariant,
nsTArray<nsString>& aArray)
{
if (aParserVariant & VARIANT_AUTO) {
InsertNoDuplicates(aArray, NS_LITERAL_STRING("auto"));
}
if (aParserVariant & VARIANT_NORMAL) {
InsertNoDuplicates(aArray, NS_LITERAL_STRING("normal"));
}
if(aParserVariant & VARIANT_ALL) {
InsertNoDuplicates(aArray, NS_LITERAL_STRING("all"));
}
if (aParserVariant & VARIANT_NONE) {
InsertNoDuplicates(aArray, NS_LITERAL_STRING("none"));
}
if (aParserVariant & VARIANT_ELEMENT) {
InsertNoDuplicates(aArray, NS_LITERAL_STRING("-moz-element"));
}
if (aParserVariant & VARIANT_IMAGE_RECT) {
InsertNoDuplicates(aArray, NS_LITERAL_STRING("-moz-image-rect"));
}
if (aParserVariant & VARIANT_COLOR) {
InsertNoDuplicates(aArray, NS_LITERAL_STRING("rgb"));
InsertNoDuplicates(aArray, NS_LITERAL_STRING("hsl"));
InsertNoDuplicates(aArray, NS_LITERAL_STRING("rgba"));
InsertNoDuplicates(aArray, NS_LITERAL_STRING("hsla"));
}
if (aParserVariant & VARIANT_TIMING_FUNCTION) {
InsertNoDuplicates(aArray, NS_LITERAL_STRING("cubic-bezier"));
InsertNoDuplicates(aArray, NS_LITERAL_STRING("steps"));
}
if (aParserVariant & VARIANT_CALC) {
InsertNoDuplicates(aArray, NS_LITERAL_STRING("calc"));
InsertNoDuplicates(aArray, NS_LITERAL_STRING("-moz-calc"));
}
if (aParserVariant & VARIANT_URL) {
InsertNoDuplicates(aArray, NS_LITERAL_STRING("url"));
}
if (aParserVariant & VARIANT_GRADIENT) {
InsertNoDuplicates(aArray, NS_LITERAL_STRING("linear-gradient"));
InsertNoDuplicates(aArray, NS_LITERAL_STRING("radial-gradient"));
InsertNoDuplicates(aArray, NS_LITERAL_STRING("repeating-linear-gradient"));
InsertNoDuplicates(aArray, NS_LITERAL_STRING("repeating-radial-gradient"));
InsertNoDuplicates(aArray, NS_LITERAL_STRING("-moz-linear-gradient"));
InsertNoDuplicates(aArray, NS_LITERAL_STRING("-moz-radial-gradient"));
InsertNoDuplicates(aArray, NS_LITERAL_STRING("-moz-repeating-linear-gradient"));
InsertNoDuplicates(aArray, NS_LITERAL_STRING("-moz-repeating-radial-gradient"));
}
}
NS_IMETHODIMP
inDOMUtils::GetSubpropertiesForCSSProperty(const nsAString& aProperty,
uint32_t* aLength,
char16_t*** aValues)
{
nsCSSProperty propertyID =
nsCSSProps::LookupProperty(aProperty, nsCSSProps::eEnabledForAllContent);
if (propertyID == eCSSProperty_UNKNOWN ||
propertyID == eCSSPropertyExtra_variable) {
return NS_ERROR_FAILURE;
}
nsTArray<nsString> array;
if (!nsCSSProps::IsShorthand(propertyID)) {
*aValues = static_cast<char16_t**>(nsMemory::Alloc(sizeof(char16_t*)));
(*aValues)[0] = ToNewUnicode(nsCSSProps::GetStringValue(propertyID));
*aLength = 1;
return NS_OK;
}
// Count up how many subproperties we have.
size_t subpropCount = 0;
for (const nsCSSProperty *props = nsCSSProps::SubpropertyEntryFor(propertyID);
*props != eCSSProperty_UNKNOWN; ++props) {
++subpropCount;
}
*aValues =
static_cast<char16_t**>(nsMemory::Alloc(subpropCount * sizeof(char16_t*)));
*aLength = subpropCount;
for (const nsCSSProperty *props = nsCSSProps::SubpropertyEntryFor(propertyID),
*props_start = props;
*props != eCSSProperty_UNKNOWN; ++props) {
(*aValues)[props-props_start] = ToNewUnicode(nsCSSProps::GetStringValue(*props));
}
return NS_OK;
}
NS_IMETHODIMP
inDOMUtils::CssPropertyIsShorthand(const nsAString& aProperty, bool *_retval)
{
nsCSSProperty propertyID =
nsCSSProps::LookupProperty(aProperty, nsCSSProps::eEnabledForAllContent);
if (propertyID == eCSSProperty_UNKNOWN) {
return NS_ERROR_FAILURE;
}
*_retval = nsCSSProps::IsShorthand(propertyID);
return NS_OK;
}
NS_IMETHODIMP
inDOMUtils::CssPropertySupportsType(const nsAString& aProperty, uint32_t aType,
bool *_retval)
{
nsCSSProperty propertyID =
nsCSSProps::LookupProperty(aProperty, nsCSSProps::eEnabledForAllContent);
if (propertyID == eCSSProperty_UNKNOWN) {
return NS_ERROR_FAILURE;
}
uint32_t variant;
switch (aType) {
case TYPE_LENGTH:
variant = VARIANT_LENGTH;
break;
case TYPE_PERCENTAGE:
variant = VARIANT_PERCENT;
break;
case TYPE_COLOR:
variant = VARIANT_COLOR;
break;
case TYPE_URL:
variant = VARIANT_URL;
break;
case TYPE_ANGLE:
variant = VARIANT_ANGLE;
break;
case TYPE_FREQUENCY:
variant = VARIANT_FREQUENCY;
break;
case TYPE_TIME:
variant = VARIANT_TIME;
break;
case TYPE_GRADIENT:
variant = VARIANT_GRADIENT;
break;
case TYPE_TIMING_FUNCTION:
variant = VARIANT_TIMING_FUNCTION;
break;
case TYPE_IMAGE_RECT:
variant = VARIANT_IMAGE_RECT;
break;
case TYPE_NUMBER:
// Include integers under "number"?
variant = VARIANT_NUMBER | VARIANT_INTEGER;
break;
default:
// Unknown type
return NS_ERROR_NOT_AVAILABLE;
}
if (!nsCSSProps::IsShorthand(propertyID)) {
*_retval = nsCSSProps::ParserVariant(propertyID) & variant;
return NS_OK;
}
for (const nsCSSProperty* props = nsCSSProps::SubpropertyEntryFor(propertyID);
*props != eCSSProperty_UNKNOWN; ++props) {
if (nsCSSProps::ParserVariant(*props) & variant) {
*_retval = true;
return NS_OK;
}
}
*_retval = false;
return NS_OK;
}
NS_IMETHODIMP
inDOMUtils::GetCSSValuesForProperty(const nsAString& aProperty,
uint32_t* aLength,
char16_t*** aValues)
{
nsCSSProperty propertyID = nsCSSProps::LookupProperty(aProperty,
nsCSSProps::eEnabledForAllContent);
if (propertyID == eCSSProperty_UNKNOWN) {
return NS_ERROR_FAILURE;
}
nsTArray<nsString> array;
// We start collecting the values, BUT colors need to go in first, because array
// needs to stay sorted, and the colors are sorted, so we just append them.
if (propertyID == eCSSPropertyExtra_variable) {
// No other values we can report.
} else if (!nsCSSProps::IsShorthand(propertyID)) {
// Property is longhand.
uint32_t propertyParserVariant = nsCSSProps::ParserVariant(propertyID);
// Get colors first.
GetColorsForProperty(propertyParserVariant, array);
if (propertyParserVariant & VARIANT_KEYWORD) {
GetKeywordsForProperty(propertyID, array);
}
GetOtherValuesForProperty(propertyParserVariant, array);
} else {
// Property is shorthand.
CSSPROPS_FOR_SHORTHAND_SUBPROPERTIES(subproperty, propertyID) {
// Get colors (once) first.
uint32_t propertyParserVariant = nsCSSProps::ParserVariant(*subproperty);
if (propertyParserVariant & VARIANT_COLOR) {
GetColorsForProperty(propertyParserVariant, array);
break;
}
}
CSSPROPS_FOR_SHORTHAND_SUBPROPERTIES(subproperty, propertyID) {
uint32_t propertyParserVariant = nsCSSProps::ParserVariant(*subproperty);
if (propertyParserVariant & VARIANT_KEYWORD) {
GetKeywordsForProperty(*subproperty, array);
}
GetOtherValuesForProperty(propertyParserVariant, array);
}
}
// All CSS properties take initial, inherit and unset.
InsertNoDuplicates(array, NS_LITERAL_STRING("initial"));
InsertNoDuplicates(array, NS_LITERAL_STRING("inherit"));
InsertNoDuplicates(array, NS_LITERAL_STRING("unset"));
*aLength = array.Length();
char16_t** ret =
static_cast<char16_t**>(NS_Alloc(*aLength * sizeof(char16_t*)));
for (uint32_t i = 0; i < *aLength; ++i) {
ret[i] = ToNewUnicode(array[i]);
}
*aValues = ret;
return NS_OK;
}
NS_IMETHODIMP
inDOMUtils::ColorNameToRGB(const nsAString& aColorName, JSContext* aCx,
JS::MutableHandle<JS::Value> aValue)
{
nscolor color;
if (!NS_ColorNameToRGB(aColorName, &color)) {
return NS_ERROR_INVALID_ARG;
}
InspectorRGBTriple triple;
triple.mR = NS_GET_R(color);
triple.mG = NS_GET_G(color);
triple.mB = NS_GET_B(color);
if (!ToJSValue(aCx, triple, aValue)) {
return NS_ERROR_FAILURE;
}
return NS_OK;
}
NS_IMETHODIMP
inDOMUtils::RgbToColorName(uint8_t aR, uint8_t aG, uint8_t aB,
nsAString& aColorName)
{
const char* color = NS_RGBToColorName(NS_RGB(aR, aG, aB));
if (!color) {
aColorName.Truncate();
return NS_ERROR_INVALID_ARG;
}
aColorName.AssignASCII(color);
return NS_OK;
}
NS_IMETHODIMP
inDOMUtils::ColorToRGBA(const nsAString& aColorString, JSContext* aCx,
JS::MutableHandle<JS::Value> aValue)
{
nscolor color = 0;
nsCSSParser cssParser;
nsCSSValue cssValue;
bool isColor = cssParser.ParseColorString(aColorString, nullptr, 0,
cssValue, true);
if (!isColor) {
aValue.setNull();
return NS_OK;
}
nsRuleNode::ComputeColor(cssValue, nullptr, nullptr, color);
InspectorRGBATuple tuple;
tuple.mR = NS_GET_R(color);
tuple.mG = NS_GET_G(color);
tuple.mB = NS_GET_B(color);
tuple.mA = nsStyleUtil::ColorComponentToFloat(NS_GET_A(color));
if (!ToJSValue(aCx, tuple, aValue)) {
return NS_ERROR_FAILURE;
}
return NS_OK;
}
NS_IMETHODIMP
inDOMUtils::IsValidCSSColor(const nsAString& aColorString, bool *_retval)
{
nsCSSParser cssParser;
nsCSSValue cssValue;
*_retval = cssParser.ParseColorString(aColorString, nullptr, 0, cssValue, true);
return NS_OK;
}
NS_IMETHODIMP
inDOMUtils::CssPropertyIsValid(const nsAString& aPropertyName,
const nsAString& aPropertyValue,
bool *_retval)
{
nsCSSProperty propertyID =
nsCSSProps::LookupProperty(aPropertyName, nsCSSProps::eIgnoreEnabledState);
if (propertyID == eCSSProperty_UNKNOWN) {
*_retval = false;
return NS_OK;
}
if (propertyID == eCSSPropertyExtra_variable) {
*_retval = true;
return NS_OK;
}
// Get a parser, parse the property.
nsCSSParser parser;
*_retval = parser.IsValueValidForProperty(propertyID, aPropertyValue);
return NS_OK;
}
NS_IMETHODIMP
inDOMUtils::GetBindingURLs(nsIDOMElement *aElement, nsIArray **_retval)
{
NS_ENSURE_ARG_POINTER(aElement);
*_retval = nullptr;
nsCOMPtr<nsIMutableArray> urls = do_CreateInstance(NS_ARRAY_CONTRACTID);
if (!urls)
return NS_ERROR_FAILURE;
nsCOMPtr<nsIContent> content = do_QueryInterface(aElement);
NS_ENSURE_ARG_POINTER(content);
nsXBLBinding *binding = content->GetXBLBinding();
while (binding) {
urls->AppendElement(binding->PrototypeBinding()->BindingURI(), false);
binding = binding->GetBaseBinding();
}
NS_ADDREF(*_retval = urls);
return NS_OK;
}
NS_IMETHODIMP
inDOMUtils::SetContentState(nsIDOMElement* aElement,
EventStates::InternalType aState)
{
NS_ENSURE_ARG_POINTER(aElement);
nsRefPtr<EventStateManager> esm =
inLayoutUtils::GetEventStateManagerFor(aElement);
if (esm) {
nsCOMPtr<nsIContent> content;
content = do_QueryInterface(aElement);
// XXX Invalid cast of bool to nsresult (bug 778108)
return (nsresult)esm->SetContentState(content, EventStates(aState));
}
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
inDOMUtils::GetContentState(nsIDOMElement* aElement,
EventStates::InternalType* aState)
{
*aState = 0;
nsCOMPtr<nsIContent> content = do_QueryInterface(aElement);
NS_ENSURE_ARG_POINTER(content);
// NOTE: if this method is removed,
// please remove GetInternalValue from EventStates
*aState = content->AsElement()->State().GetInternalValue();
return NS_OK;
}
/* static */ nsresult
inDOMUtils::GetRuleNodeForElement(dom::Element* aElement,
nsIAtom* aPseudo,
nsStyleContext** aStyleContext,
nsRuleNode** aRuleNode)
{
MOZ_ASSERT(aElement);
*aRuleNode = nullptr;
*aStyleContext = nullptr;
nsIDocument* doc = aElement->GetComposedDoc();
NS_ENSURE_TRUE(doc, NS_ERROR_UNEXPECTED);
nsIPresShell *presShell = doc->GetShell();
NS_ENSURE_TRUE(presShell, NS_ERROR_UNEXPECTED);
nsPresContext *presContext = presShell->GetPresContext();
NS_ENSURE_TRUE(presContext, NS_ERROR_UNEXPECTED);
presContext->EnsureSafeToHandOutCSSRules();
nsRefPtr<nsStyleContext> sContext =
nsComputedDOMStyle::GetStyleContextForElement(aElement, aPseudo, presShell);
if (sContext) {
*aRuleNode = sContext->RuleNode();
sContext.forget(aStyleContext);
}
return NS_OK;
}
NS_IMETHODIMP
inDOMUtils::GetUsedFontFaces(nsIDOMRange* aRange,
nsIDOMFontFaceList** aFontFaceList)
{
return static_cast<nsRange*>(aRange)->GetUsedFontFaces(aFontFaceList);
}
static EventStates
GetStatesForPseudoClass(const nsAString& aStatePseudo)
{
// An array of the states that are relevant for various pseudoclasses.
// XXXbz this duplicates code in nsCSSRuleProcessor
static const EventStates sPseudoClassStates[] = {
#define CSS_PSEUDO_CLASS(_name, _value, _flags, _pref) \
EventStates(),
#define CSS_STATE_PSEUDO_CLASS(_name, _value, _flags, _pref, _states) \
_states,
#include "nsCSSPseudoClassList.h"
#undef CSS_STATE_PSEUDO_CLASS
#undef CSS_PSEUDO_CLASS
// Add more entries for our fake values to make sure we can't
// index out of bounds into this array no matter what.
EventStates(),
EventStates()
};
static_assert(MOZ_ARRAY_LENGTH(sPseudoClassStates) ==
nsCSSPseudoClasses::ePseudoClass_NotPseudoClass + 1,
"Length of PseudoClassStates array is incorrect");
nsCOMPtr<nsIAtom> atom = do_GetAtom(aStatePseudo);
// Ignore :moz-any-link so we don't give the element simultaneous
// visited and unvisited style state
if (nsCSSPseudoClasses::GetPseudoType(atom) ==
nsCSSPseudoClasses::ePseudoClass_mozAnyLink) {
return EventStates();
}
// Our array above is long enough that indexing into it with
// NotPseudoClass is ok.
return sPseudoClassStates[nsCSSPseudoClasses::GetPseudoType(atom)];
}
NS_IMETHODIMP
inDOMUtils::AddPseudoClassLock(nsIDOMElement *aElement,
const nsAString &aPseudoClass)
{
EventStates state = GetStatesForPseudoClass(aPseudoClass);
if (state.IsEmpty()) {
return NS_OK;
}
nsCOMPtr<mozilla::dom::Element> element = do_QueryInterface(aElement);
NS_ENSURE_ARG_POINTER(element);
element->LockStyleStates(state);
return NS_OK;
}
NS_IMETHODIMP
inDOMUtils::RemovePseudoClassLock(nsIDOMElement *aElement,
const nsAString &aPseudoClass)
{
EventStates state = GetStatesForPseudoClass(aPseudoClass);
if (state.IsEmpty()) {
return NS_OK;
}
nsCOMPtr<mozilla::dom::Element> element = do_QueryInterface(aElement);
NS_ENSURE_ARG_POINTER(element);
element->UnlockStyleStates(state);
return NS_OK;
}
NS_IMETHODIMP
inDOMUtils::HasPseudoClassLock(nsIDOMElement *aElement,
const nsAString &aPseudoClass,
bool *_retval)
{
EventStates state = GetStatesForPseudoClass(aPseudoClass);
if (state.IsEmpty()) {
*_retval = false;
return NS_OK;
}
nsCOMPtr<mozilla::dom::Element> element = do_QueryInterface(aElement);
NS_ENSURE_ARG_POINTER(element);
EventStates locks = element->LockedStyleStates();
*_retval = locks.HasAllStates(state);
return NS_OK;
}
NS_IMETHODIMP
inDOMUtils::ClearPseudoClassLocks(nsIDOMElement *aElement)
{
nsCOMPtr<mozilla::dom::Element> element = do_QueryInterface(aElement);
NS_ENSURE_ARG_POINTER(element);
element->ClearStyleStateLocks();
return NS_OK;
}
NS_IMETHODIMP
inDOMUtils::ParseStyleSheet(nsIDOMCSSStyleSheet *aSheet,
const nsAString& aInput)
{
nsRefPtr<CSSStyleSheet> sheet = do_QueryObject(aSheet);
NS_ENSURE_ARG_POINTER(sheet);
return sheet->ParseSheet(aInput);
}
NS_IMETHODIMP
inDOMUtils::ScrollElementIntoView(nsIDOMElement *aElement)
{
nsCOMPtr<nsIContent> content = do_QueryInterface(aElement);
NS_ENSURE_ARG_POINTER(content);
nsIPresShell* presShell = content->OwnerDoc()->GetShell();
if (!presShell) {
return NS_OK;
}
presShell->ScrollContentIntoView(content,
nsIPresShell::ScrollAxis(),
nsIPresShell::ScrollAxis(),
nsIPresShell::SCROLL_OVERFLOW_HIDDEN);
return NS_OK;
}
Reference in New Issue View Git Blame Copy Permalink