def getStyleAttributeFromRegion_(region: Element, styles, attribute):
ttsNs = styleNs_
if not region:
return None
attr = region.getAttributeNS(ttsNs, attribute)
if attr:
return attr
return TtmlTextParser.getInheritedStyleAttribute_(region, styles, attribute)
def getInheritedAttribute_(element: Element, attributeName: str, nsName: str):
ret = None
while element:
if nsName:
ret = element.getAttributeNS(nsName, attributeName)
else:
ret = element.getAttribute(attributeName)
if ret:
break
parentNode = element.parentNode
if isinstance(parentNode, Element):
element = parentNode
else:
break
return ret
def getStyleAttributeFromElement_(cueElement: Element, styles, attribute: str):
ttsNs = styleNs_
elementAttribute = cueElement.getAttributeNS(ttsNs, attribute)
if elementAttribute:
return elementAttribute
return TtmlTextParser.getInheritedStyleAttribute_(cueElement, styles, attribute)
