bool
nsXHTMLContentSerializer::CheckElementStart(nsIContent * aContent,
bool & aForceFormat,
nsAString& aStr,
nsresult& aResult)
{
aResult = NS_OK;
// The _moz_dirty attribute is emitted by the editor to
// indicate that this element should be pretty printed
// even if we're not in pretty printing mode
aForceFormat = !(mFlags & nsIDocumentEncoder::OutputIgnoreMozDirty) &&
aContent->HasAttr(kNameSpaceID_None, nsGkAtoms::mozdirty);
if (aContent->IsHTMLElement(nsGkAtoms::br) &&
(mFlags & nsIDocumentEncoder::OutputNoFormattingInPre) &&
PreLevel() > 0) {
aResult = AppendNewLineToString(aStr) ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
return false;
}
if (aContent->IsHTMLElement(nsGkAtoms::body)) {
++mInBody;
}
return true;
}
bool
nsXHTMLContentSerializer::CheckElementStart(nsIContent * aContent,
bool & aForceFormat,
nsAString& aStr)
{
// The _moz_dirty attribute is emitted by the editor to
// indicate that this element should be pretty printed
// even if we're not in pretty printing mode
aForceFormat = aContent->HasAttr(kNameSpaceID_None,
nsGkAtoms::mozdirty);
nsIAtom *name = aContent->Tag();
PRInt32 namespaceID = aContent->GetNameSpaceID();
if (namespaceID == kNameSpaceID_XHTML) {
if (name == nsGkAtoms::br && mPreLevel > 0 &&
(mFlags & nsIDocumentEncoder::OutputNoFormattingInPre)) {
AppendNewLineToString(aStr);
return false;
}
if (name == nsGkAtoms::body) {
++mInBody;
}
}
return true;
}
bool
nsXHTMLContentSerializer::AfterElementStart(nsIContent* aContent,
nsIContent* aOriginalElement,
nsAString& aStr)
{
nsIAtom *name = aContent->Tag();
if (aContent->GetNameSpaceID() == kNameSpaceID_XHTML &&
mRewriteEncodingDeclaration &&
name == nsGkAtoms::head) {
// Check if there already are any content-type meta children.
// If there are, they will be modified to use the correct charset.
// If there aren't, we'll insert one here.
bool hasMeta = false;
for (nsIContent* child = aContent->GetFirstChild();
child;
child = child->GetNextSibling()) {
if (child->IsHTML(nsGkAtoms::meta) &&
child->HasAttr(kNameSpaceID_None, nsGkAtoms::content)) {
nsAutoString header;
child->GetAttr(kNameSpaceID_None, nsGkAtoms::httpEquiv, header);
if (header.LowerCaseEqualsLiteral("content-type")) {
hasMeta = true;
break;
}
}
}
if (!hasMeta) {
NS_ENSURE_TRUE(AppendNewLineToString(aStr), false);
if (mDoFormat) {
NS_ENSURE_TRUE(AppendIndentation(aStr), false);
}
NS_ENSURE_TRUE(AppendToString(NS_LITERAL_STRING("<meta http-equiv=\"content-type\""), aStr), false);
NS_ENSURE_TRUE(AppendToString(NS_LITERAL_STRING(" content=\"text/html; charset="), aStr), false);
NS_ENSURE_TRUE(AppendToString(NS_ConvertASCIItoUTF16(mCharset), aStr), false);
if (mIsHTMLSerializer) {
NS_ENSURE_TRUE(AppendToString(NS_LITERAL_STRING("\">"), aStr), false);
} else {
NS_ENSURE_TRUE(AppendToString(NS_LITERAL_STRING("\" />"), aStr), false);
}
}
}
return true;
}
void
nsXHTMLContentSerializer::AfterElementStart(nsIContent * aContent,
nsIDOMElement *aOriginalElement,
nsAString& aStr)
{
nsIAtom *name = aContent->Tag();
if (aContent->GetNameSpaceID() == kNameSpaceID_XHTML &&
mRewriteEncodingDeclaration &&
name == nsGkAtoms::head) {
// Check if there already are any content-type meta children.
// If there are, they will be modified to use the correct charset.
// If there aren't, we'll insert one here.
PRBool hasMeta = PR_FALSE;
PRUint32 i, childCount = aContent->GetChildCount();
for (i = 0; i < childCount; ++i) {
nsIContent* child = aContent->GetChildAt(i);
if (child->IsHTML() &&
child->Tag() == nsGkAtoms::meta &&
child->HasAttr(kNameSpaceID_None, nsGkAtoms::content)) {
nsAutoString header;
child->GetAttr(kNameSpaceID_None, nsGkAtoms::httpEquiv, header);
if (header.LowerCaseEqualsLiteral("content-type")) {
hasMeta = PR_TRUE;
break;
}
}
}
if (!hasMeta) {
AppendNewLineToString(aStr);
if (mDoFormat) {
AppendIndentation(aStr);
}
AppendToString(NS_LITERAL_STRING("<meta http-equiv=\"content-type\""),
aStr);
AppendToString(NS_LITERAL_STRING(" content=\"text/html; charset="), aStr);
AppendToString(NS_ConvertASCIItoUTF16(mCharset), aStr);
if (mIsHTMLSerializer)
AppendToString(NS_LITERAL_STRING("\">"), aStr);
else
AppendToString(NS_LITERAL_STRING("\" />"), aStr);
}
}
}
NS_IMETHODIMP
nsHTMLContentSerializer::AppendElementEnd(nsIDOMElement *aElement,
nsAString& aStr)
{
NS_ENSURE_ARG(aElement);
nsCOMPtr<nsIContent> content = do_QueryInterface(aElement);
if (!content) return NS_ERROR_FAILURE;
nsIAtom *name = content->Tag();
if (name == nsGkAtoms::script ||
name == nsGkAtoms::style ||
name == nsGkAtoms::noscript ||
name == nsGkAtoms::noframes) {
--mDisableEntityEncoding;
}
PRBool forceFormat = content->HasAttr(kNameSpaceID_None,
nsGkAtoms::mozdirty);
if ((mDoFormat || forceFormat) && !mPreLevel && !mDoRaw) {
DecrIndentation(name);
}
if (name == nsGkAtoms::script) {
nsCOMPtr<nsIScriptElement> script = do_QueryInterface(aElement);
if (script && script->IsMalformed()) {
// We're looking at a malformed script tag. This means that the end tag
// was missing in the source. Imitate that here by not serializing the end
// tag.
--mPreLevel;
return NS_OK;
}
}
else if (mIsCopying && name == nsGkAtoms::ol) {
NS_ASSERTION((!mOLStateStack.IsEmpty()), "Cannot have an empty OL Stack");
/* Though at this point we must always have an state to be deleted as all
the OL opening tags are supposed to push an olState object to the stack*/
if (!mOLStateStack.IsEmpty()) {
mOLStateStack.RemoveElementAt(mOLStateStack.Length() -1);
}
}
nsIParserService* parserService = nsContentUtils::GetParserService();
if (parserService) {
PRBool isContainer;
parserService->IsContainer(parserService->HTMLAtomTagToId(name),
isContainer);
if (!isContainer)
return NS_OK;
}
if ((mDoFormat || forceFormat) && !mPreLevel && !mDoRaw) {
PRBool lineBreakBeforeClose = LineBreakBeforeClose(content->GetNameSpaceID(), name);
if (mColPos && lineBreakBeforeClose) {
AppendNewLineToString(aStr);
}
if (!mColPos) {
AppendIndentation(aStr);
}
else if (mAddSpace) {
AppendToString(PRUnichar(' '), aStr);
mAddSpace = PR_FALSE;
}
}
else if (mAddSpace) {
AppendToString(PRUnichar(' '), aStr);
mAddSpace = PR_FALSE;
}
nsAutoString nameStr;
name->ToString(nameStr);
AppendToString(kEndTag, aStr);
AppendToString(nameStr.get(), -1, aStr);
AppendToString(kGreaterThan, aStr);
MaybeLeaveFromPreContent(content);
if ((mDoFormat || forceFormat) && !mPreLevel
&& !mDoRaw && LineBreakAfterClose(content->GetNameSpaceID(), name)) {
AppendNewLineToString(aStr);
}
else {
MaybeFlagNewlineForRootNode(aElement);
}
if (name == nsGkAtoms::body) {
--mInBody;
}
return NS_OK;
}
NS_IMETHODIMP
nsHTMLContentSerializer::AppendElementStart(nsIDOMElement *aElement,
nsIDOMElement *aOriginalElement,
nsAString& aStr)
{
NS_ENSURE_ARG(aElement);
nsCOMPtr<nsIContent> content = do_QueryInterface(aElement);
if (!content) return NS_ERROR_FAILURE;
PRBool forceFormat = PR_FALSE;
if (!CheckElementStart(content, forceFormat, aStr)) {
return NS_OK;
}
nsIAtom *name = content->Tag();
PRBool lineBreakBeforeOpen = LineBreakBeforeOpen(content->GetNameSpaceID(), name);
if ((mDoFormat || forceFormat) && !mPreLevel && !mDoRaw) {
if (mColPos && lineBreakBeforeOpen) {
AppendNewLineToString(aStr);
}
else {
MaybeAddNewlineForRootNode(aStr);
}
if (!mColPos) {
AppendIndentation(aStr);
}
else if (mAddSpace) {
AppendToString(PRUnichar(' '), aStr);
mAddSpace = PR_FALSE;
}
}
else if (mAddSpace) {
AppendToString(PRUnichar(' '), aStr);
mAddSpace = PR_FALSE;
}
else {
MaybeAddNewlineForRootNode(aStr);
}
// Always reset to avoid false newlines in case MaybeAddNewlineForRootNode wasn't
// called
mAddNewlineForRootNode = PR_FALSE;
AppendToString(kLessThan, aStr);
nsAutoString nameStr;
name->ToString(nameStr);
AppendToString(nameStr.get(), -1, aStr);
MaybeEnterInPreContent(content);
// for block elements, we increase the indentation
if ((mDoFormat || forceFormat) && !mPreLevel && !mDoRaw)
IncrIndentation(name);
// Need to keep track of OL and LI elements in order to get ordinal number
// for the LI.
if (mIsCopying && name == nsGkAtoms::ol){
// We are copying and current node is an OL;
// Store its start attribute value in olState->startVal.
nsAutoString start;
PRInt32 startAttrVal = 0;
aElement->GetAttribute(NS_LITERAL_STRING("start"), start);
if (!start.IsEmpty()){
PRInt32 rv = 0;
startAttrVal = start.ToInteger(&rv);
//If OL has "start" attribute, first LI element has to start with that value
//Therefore subtracting 1 as all the LI elements are incrementing it before using it;
//In failure of ToInteger(), default StartAttrValue to 0.
if (NS_SUCCEEDED(rv))
startAttrVal--;
else
startAttrVal = 0;
}
mOLStateStack.AppendElement(olState(startAttrVal, PR_TRUE));
}
if (mIsCopying && name == nsGkAtoms::li) {
mIsFirstChildOfOL = IsFirstChildOfOL(aOriginalElement);
if (mIsFirstChildOfOL){
// If OL is parent of this LI, serialize attributes in different manner.
SerializeLIValueAttribute(aElement, aStr);
}
}
// Even LI passed above have to go through this
// for serializing attributes other than "value".
nsAutoString dummyPrefix;
SerializeAttributes(content, aOriginalElement, dummyPrefix, EmptyString(), name, aStr);
AppendToString(kGreaterThan, aStr);
if (name == nsGkAtoms::script ||
name == nsGkAtoms::style ||
name == nsGkAtoms::noscript ||
name == nsGkAtoms::noframes) {
++mDisableEntityEncoding;
}
if ((mDoFormat || forceFormat) && !mPreLevel &&
!mDoRaw && LineBreakAfterOpen(content->GetNameSpaceID(), name)) {
AppendNewLineToString(aStr);
}
AfterElementStart(content, aOriginalElement, aStr);
return NS_OK;
}