/**
* Helper to determine if a give MXMLUnitData is the only Text child of an MXMLTagData This
* implies special, different processing from normal Text Datas.
*/
private boolean isOnlyTextChild(MXMLUnitData child) {
if (child instanceof MXMLTextData
&& ((MXMLTextData) child).getTextType() == IMXMLTextData.TextType.TEXT) {
MXMLUnitData p = child.getParentUnitData();
MXMLTagData parent = p instanceof MXMLTagData ? (MXMLTagData) p : null;
if (parent != null) {
return parent.getFirstChildUnit() == child && child.getNextSiblingUnit() == null;
}
}
return false;
}
/** Generate an AET Name that corresponds to the tag passed in */
private Name getNameForTag(MXMLTagData tag) {
if (tag == rootTag) {
return new Name(parent.getEffectiveID());
} else {
String uri = tag.getURI();
if (uri != null) {
return new Name(new Namespace(ABCConstants.CONSTANT_Namespace, uri), tag.getShortName());
} else {
return new Name(tag.getShortName());
}
}
}
/**
* Get the index of a text data. Grabs the parent, and iterates it's children to find out what the
* index of the text data passed in should be
*/
private int getIndexOfText(MXMLTextData text) {
MXMLUnitData parent = text.getParentUnitData();
MXMLTagData parentTag = parent instanceof MXMLTagData ? (MXMLTagData) parent : null;
int index = 0;
if (parentTag != null) {
for (MXMLUnitData d = parentTag.getFirstChildUnit(); d != null; d = d.getNextSiblingUnit()) {
if (d == text) break;
else if (d instanceof MXMLTextData
&& ((MXMLTextData) d).getTextType() == IMXMLTextData.TextType.CDATA) ++index;
}
}
return index;
}
/**
* Do a lookup of a prefix, starting with the specified tag. This method will record if the prefix
* is defined outside of the <fx:XML> tag. If it is defined outside of the tag, then the prefix
* will need to be added to the root XML tag as an 'xmlns' so that it will still be accessible.
*
* @param prefix the prefix to look for
* @param tag the tag to start looking in
*/
void lookupPrefix(String prefix, MXMLTagData tag) {
while (tag != null) {
PrefixMap pm = tag.getPrefixMap();
if (pm != null && pm.containsPrefix(prefix))
// we found the prefix, and haven't gone past the root tag, so don't need to do anything
// special
return;
else if (tag == rootTag)
// don't look past the root tag
tag = null;
else tag = tag.getParentTag();
}
// We will only get here if we have traversed past the root XML tag, and haven't found the
// prefix yet
// in that case, record the prefix if its defined somewhere else in the MXML document, so we can
// make sure it ends up in the resulting XML literal.
if (externalPrefixes.containsPrefix(prefix)) referencedPrefixes.add(prefix);
}
/**
* Get the index of a tag. Grabs the parent tag, and iterates it's children to find out what the
* index of the tag passed in should be
*/
private int getIndexOfTag(MXMLTagData tag) {
MXMLTagData parent = tag.getParentTag();
int index = 0;
for (MXMLTagData d = parent.getFirstChild(true); d != null; d = d.getNextSibling(true)) {
if (d == tag) break;
else if (d.getName().equals(tag.getName())) ++index;
}
return index;
}
/**
* Process an MXMLTagData - this will write a String representation of the tag into the
* StringWriter passed in. This will strip out any databinding expressions from the String, TODO:
* databinding - add the databinding expressions as children of the MXMLXMLNode, and also record
* what the TODO: target expressions for those are (these are the expressions to set the value in
* the XML object when the TODO: PropertyChange event fires).
*/
void processNode(MXMLTagData tag, StringWriter sw) {
sw.write('<');
if (tag.isCloseTag()) sw.write('/');
sw.write(tag.getName());
String tagPrefix = tag.getPrefix();
// lookup the prefix in case it's defined elsewhere in the document outside the XML tag
if (tagPrefix != null) lookupPrefix(tagPrefix, tag);
List<MXMLTagAttributeData> attrs = getAttributes(tag);
for (MXMLTagAttributeData attr : attrs) {
sw.write(' ');
sw.write(attr.getName());
sw.write('=');
sw.write('"');
sw.write(attr.getRawValue());
sw.write('"');
// lookup the prefix in case it's defined outside the XML tag
String prefix = attr.getPrefix();
if (prefix != null) lookupPrefix(prefix, tag);
}
StringWriter childrenSW = new StringWriter();
for (MXMLUnitData unit = tag.getFirstChildUnit();
unit != null;
unit = unit.getNextSiblingUnit()) {
processNode(unit, childrenSW);
}
if (tag == rootTag) {
// If we're the root tag, then add an xmlns for each prefix that was referenced by one of our
// children, but was defined elsewhere in the document (like in the Application tag).
for (String prefix : referencedPrefixes) {
String uri = externalPrefixes.getNamespaceForPrefix(prefix);
if (uri != null) {
sw.write(" xmlns:");
sw.write(prefix);
sw.write("=\"");
sw.write(uri);
sw.write('\"');
}
}
}
if (tag.isEmptyTag()) {
sw.write("/>");
} else {
sw.write('>');
}
sw.write(childrenSW.toString());
MXMLTagData endTag = tag.findMatchingEndTag();
if (endTag != null) {
processNode(endTag, sw);
}
}
/**
* Get a list of attributes, filtering out the attributes that have data binding values.
*
* @param tag The
* @return
*/
List<MXMLTagAttributeData> getAttributes(MXMLTagData tag) {
MXMLTagAttributeData[] rawAttrs = tag.getAttributeDatas();
if (rawAttrs != null) {
ArrayList<MXMLTagAttributeData> attrs = new ArrayList<MXMLTagAttributeData>(rawAttrs.length);
for (MXMLTagAttributeData attr : rawAttrs) {
IMXMLSingleDataBindingNode db = null;
if ((db = parseBindingExpression(attr)) != null) {
// do databinding stuff:
// 1. Walk up parent chain to compute target expression
// 2. Parse databinding expression
// 3. Save off both those pieces of data for use during codegen
databindings.add(generateBindingNode(attr, db));
} else {
attrs.add(attr);
}
}
return attrs;
}
return Collections.emptyList();
}
@Override
protected void processChildTag(
MXMLTreeBuilder builder, MXMLTagData tag, MXMLTagData childTag, MXMLNodeInfo info) {
if (info.hasSpecifierWithName(childTag.getShortName(), childTag.getStateName())) {
ICompilerProblem problem = new MXMLDuplicateChildTagProblem(childTag);
builder.addProblem(problem);
return;
}
FlexProject project = builder.getProject();
// Handle child tags that are property/style/event specifiers.
MXMLSpecifierNodeBase childNode = createSpecifierNode(builder, childTag.getShortName());
if (childNode != null) {
// This tag is not part of the default property value.
processNonDefaultPropertyContentUnit(builder, info);
childNode.setSuffix(builder, childTag.getStateName());
childNode.initializeFromTag(builder, childTag);
info.addChildNode(childNode);
} else if (builder.getFileScope().isScriptTag(childTag)
&& (builder.getMXMLDialect().isEqualToOrBefore(MXMLDialect.MXML_2009))) {
// In MXML 2006 and 2009, allow a <Script> tag
// inside any class reference tag
if (!processingDefaultProperty) {
// Not processing the default property, just make a script
// node and put it in the tree.
MXMLScriptNode scriptNode = new MXMLScriptNode(this);
scriptNode.initializeFromTag(builder, childTag);
info.addChildNode(scriptNode);
} else {
// We are processing a default property. Script nodes need
// to be a child of that default specifier nodes so that
// finding a node by offset works properly.
// See: http://bugs.adobe.com/jira/browse/CMP-955
processDefaultPropertyContentUnit(builder, childTag, info);
}
} else if (builder.getFileScope().isReparentTag(childTag)) {
MXMLReparentNode reparentNode = new MXMLReparentNode(this);
reparentNode.initializeFromTag(builder, childTag);
info.addChildNode(reparentNode);
} else {
IDefinition definition = builder.getFileScope().resolveTagToDefinition(childTag);
if (definition instanceof ClassDefinition) {
// Handle child tags that are instance tags.
IVariableDefinition defaultPropertyDefinition = getDefaultPropertyDefinition(builder);
if (defaultPropertyDefinition != null && !processedDefaultProperty) {
// Since there is a default property and we haven't already processed it,
// assume this child instance tag is part of its value.
processDefaultPropertyContentUnit(builder, childTag, info);
} else {
// This tag is not part of the default property value.
processNonDefaultPropertyContentUnit(builder, info);
MXMLInstanceNode instanceNode =
MXMLInstanceNode.createInstanceNode(builder, definition.getQualifiedName(), this);
instanceNode.setClassReference(
project,
(IClassDefinition) definition); // TODO Move this logic to initializeFromTag().
instanceNode.initializeFromTag(builder, childTag);
info.addChildNode(instanceNode);
}
} else {
// Handle child tags that are something other than property/style/event tags
// or instance tags.
// This tag is not part of the default property value.
processNonDefaultPropertyContentUnit(builder, info);
super.processChildTag(builder, tag, childTag, info);
}
}
}
