@Nonnull
private CSSSupportsRule _createSupportsRule(@Nonnull final CSSNode aNode) {
_expectNodeType(aNode, ECSSNodeType.SUPPORTSRULE);
final CSSSupportsRule ret = new CSSSupportsRule();
ret.setSourceLocation(aNode.getSourceLocation());
for (final CSSNode aChildNode : aNode) {
if (ECSSNodeType.SUPPORTSCONDITION.isNode(aChildNode, m_eVersion)) {
for (final CSSNode aChildChildNode : aChildNode) {
final ICSSSupportsConditionMember aMember =
_createSupportsConditionMemberRecursive(aChildChildNode);
if (aMember != null) ret.addSupportConditionMember(aMember);
}
} else if (ECSSNodeType.STYLERULE.isNode(aChildNode, m_eVersion))
ret.addRule(_createStyleRule(aChildNode));
else if (ECSSNodeType.MEDIARULE.isNode(aChildNode, m_eVersion))
ret.addRule(_createMediaRule(aChildNode));
else if (ECSSNodeType.PAGERULE.isNode(aChildNode, m_eVersion))
ret.addRule(_createPageRule(aChildNode));
else if (ECSSNodeType.FONTFACERULE.isNode(aChildNode, m_eVersion))
ret.addRule(_createFontFaceRule(aChildNode));
else if (ECSSNodeType.KEYFRAMESRULE.isNode(aChildNode, m_eVersion))
ret.addRule(_createKeyframesRule(aChildNode));
else if (ECSSNodeType.VIEWPORTRULE.isNode(aChildNode, m_eVersion))
ret.addRule(_createViewportRule(aChildNode));
else if (ECSSNodeType.SUPPORTSRULE.isNode(aChildNode, m_eVersion))
ret.addRule(_createSupportsRule(aChildNode));
else if (!ECSSNodeType.isErrorNode(aChildNode, m_eVersion))
s_aLogger.error(
"Unsupported supports-rule child: " + ECSSNodeType.getNodeName(aChildNode, m_eVersion));
}
return ret;
}
@Nullable
private ICSSSupportsConditionMember _createSupportsConditionMemberRecursive(
@Nonnull final CSSNode aNode) {
final int nChildCount = aNode.jjtGetNumChildren();
if (ECSSNodeType.SUPPORTSCONDITIONOPERATOR.isNode(aNode, m_eVersion)) {
if (nChildCount != 0)
_throwUnexpectedChildrenCount(aNode, "Expected no children but got " + nChildCount + "!");
return ECSSSupportsConditionOperator.getFromNameCaseInsensitiveOrNull(aNode.getText());
}
if (ECSSNodeType.SUPPORTSNEGATION.isNode(aNode, m_eVersion)) {
if (nChildCount != 1)
_throwUnexpectedChildrenCount(
aNode, "Expected at exactly 1 child but got " + nChildCount + "!");
final ICSSSupportsConditionMember aNestedMember =
_createSupportsConditionMemberRecursive(aNode.jjtGetChild(0));
if (aNestedMember == null) return null;
final CSSSupportsConditionNegation ret = new CSSSupportsConditionNegation(aNestedMember);
ret.setSourceLocation(aNode.getSourceLocation());
return ret;
}
if (ECSSNodeType.SUPPORTSCONDITIONINPARENS.isNode(aNode, m_eVersion)) {
if (nChildCount != 1)
_throwUnexpectedChildrenCount(
aNode, "Expected at exactly 1 child but got " + nChildCount + "!");
final CSSNode aChildNode = aNode.jjtGetChild(0);
if (ECSSNodeType.STYLEDECLARATION.isNode(aChildNode, m_eVersion)) {
final CSSDeclaration aDeclaration = _createDeclaration(aChildNode);
if (aDeclaration == null)
throw new CSSHandlingException(
aChildNode, "The style declaration in the @supports rule is invalid!");
final CSSSupportsConditionDeclaration ret =
new CSSSupportsConditionDeclaration(aDeclaration);
ret.setSourceLocation(aNode.getSourceLocation());
return ret;
}
if (ECSSNodeType.SUPPORTSCONDITION.isNode(aChildNode, m_eVersion)) {
final CSSSupportsConditionNested ret = new CSSSupportsConditionNested();
for (final CSSNode aChildChildNode : aChildNode) {
final ICSSSupportsConditionMember aMember =
_createSupportsConditionMemberRecursive(aChildChildNode);
if (aMember != null) ret.addMember(aMember);
}
return ret;
}
s_aLogger.error(
"Unsupported supportsConditionInParents child: "
+ ECSSNodeType.getNodeName(aChildNode, m_eVersion));
return null;
}
if (!ECSSNodeType.isErrorNode(aNode, m_eVersion))
s_aLogger.error(
"Unsupported supports-condition child: " + ECSSNodeType.getNodeName(aNode, m_eVersion));
return null;
}
