def getAdjacentTextElement(current,
topMostNode,
forward=None,
traversingUp=False):
if forward is None:
forward = topMostNode
topMostNode = None
res = None
#print "getAdjacentTextElement", current, topMostNode, forward, traversingUp
# If traversingUp, then the children have already been processed
if not traversingUp:
if DOM.getChildCount(current) > 0:
if forward:
node = DOM.getFirstChild(current)
else:
node = DOM.getLastChild(current)
if DOM.getNodeType(node) == DOM.TEXT_NODE:
res = node
else:
# Depth first traversal, the recursive call deals with
# siblings
res = getAdjacentTextElement(node, topMostNode, forward, False)
if res is None:
if forward:
node = current.nextSibling
else:
node = current.previousSibling
# Traverse siblings
if node is not None:
if DOM.getNodeType(node) == DOM.TEXT_NODE:
res = node
else:
#print node, DOM.getNodeType(node), node.innerHTML
# Depth first traversal, the recursive call deals with
# siblings
res = getAdjacentTextElement(node, topMostNode, forward, False)
# Go up and over if still not found
if (res is None) and (not DOM.compare(current, topMostNode)):
node = current.parentNode
# Stop at document (technically could stop at "html" tag)
if (node is not None) and \
(DOM.getNodeType(node) != DOM.DOCUMENT_NODE):
res = getAdjacentTextElement(node, topMostNode, forward, True)
return res
def getAdjacentTextElement(current, topMostNode, forward=None, traversingUp=False):
if forward is None:
forward = topMostNode
topMostNode = None
res = None
#print "getAdjacentTextElement", current, topMostNode, forward, traversingUp
# If traversingUp, then the children have already been processed
if not traversingUp:
if DOM.getChildCount(current) > 0:
if forward:
node = DOM.getFirstChild(current)
else:
node = DOM.getLastChild(current)
if DOM.getNodeType(node) == DOM.TEXT_NODE:
res = node
else:
# Depth first traversal, the recursive call deals with
# siblings
res = getAdjacentTextElement(node, topMostNode,
forward, False)
if res is None:
if forward:
node = current.nextSibling
else:
node = current.previousSibling
# Traverse siblings
if node is not None:
if DOM.getNodeType(node) == DOM.TEXT_NODE:
res = node
else:
#print node, DOM.getNodeType(node), node.innerHTML
# Depth first traversal, the recursive call deals with
# siblings
res = getAdjacentTextElement(node, topMostNode,
forward, False)
# Go up and over if still not found
if (res is None) and (not DOM.compare(current, topMostNode)):
node = current.parentNode
# Stop at document (technically could stop at "html" tag)
if (node is not None) and \
(DOM.getNodeType(node) != DOM.DOCUMENT_NODE):
res = getAdjacentTextElement(node, topMostNode,
forward, True)
return res
def findTextPoint(node, offset):
"""
If the found range is not on a text node, this finds the cooresponding
text node to where the selection is. If it is on a text node, just
directly creates the endpoint from it.
@param node node returned as an endpoint of a range
@param offset offset returned to the endpoint of a range
@return A range end point with a proper (or None) text node
"""
if DOM.getNodeType(node) == DOM.TEXT_NODE:
res = RangeEndPoint(node, offset)
else:
# search backwards unless this is after the last node
dirn = offset >= DOM.getChildCount(node)
child = (DOM.getChildCount(node) == 0) and node or DOM.getChild(node, dirn and (offset - 1) or offset)
# Get the previous/next text node
text = RangeUtil.getAdjacentTextElement(child, dirn)
if text is None:
# If we didn't find a text node in the preferred direction,
# try the other direction
dirn = not dirn
text = RangeUtil.getAdjacentTextElement(child, dirn)
res = RangeEndPoint(text, dirn)
return res
def findTextPoint(node, offset):
"""
If the found range is not on a text node, this finds the cooresponding
text node to where the selection is. If it is on a text node, just
directly creates the endpoint from it.
@param node node returned as an endpoint of a range
@param offset offset returned to the endpoint of a range
@return A range end point with a proper (or None) text node
"""
if DOM.getNodeType(node) == DOM.TEXT_NODE:
res = RangeEndPoint(node, offset)
else:
# search backwards unless this is after the last node
dirn = offset >= DOM.getChildCount(node)
child = (DOM.getChildCount(node) == 0) and node or \
DOM.getChild(node, dirn and (offset - 1) or offset)
# Get the previous/next text node
text = RangeUtil.getAdjacentTextElement(child, dirn)
if text is None:
# If we didn't find a text node in the preferred direction,
# try the other direction
dirn = not dirn
text = RangeUtil.getAdjacentTextElement(child, dirn)
res = RangeEndPoint(text, dirn)
return res
def findTextPoint(node, offset):
if DOM.getNodeType(node) == DOM.TEXT_NODE:
res = RangeEndPoint(node, offset)
else:
# search backwards unless this is after the last node
dirn = offset >= DOM.getChildCount(node)
child = (DOM.getChildCount(node) == 0) and node or DOM.getChild(node, dirn and (offset - 1) or offset)
# Get the previous/next text node
text = RangeUtil.getAdjacentTextElement(child, dirn)
if text is None:
# If we didn't find a text node in the preferred direction,
# try the other direction
dirn = not dirn
text = RangeUtil.getAdjacentTextElement(child, dirn)
res = RangeEndPoint(text, dirn)
return res
def findTextPoint(node, offset):
if DOM.getNodeType(node) == DOM.TEXT_NODE:
res = RangeEndPoint(node, offset)
else:
# search backwards unless this is after the last node
dirn = offset >= DOM.getChildCount(node)
child = (DOM.getChildCount(node) == 0) and node or \
DOM.getChild(node, dirn and (offset - 1) or offset)
# Get the previous/next text node
text = RangeUtil.getAdjacentTextElement(child, dirn)
if text is None:
# If we didn't find a text node in the preferred direction,
# try the other direction
dirn = not dirn
text = RangeUtil.getAdjacentTextElement(child, dirn)
res = RangeEndPoint(text, dirn)
return res
def isTextNode(node):
if node is None:
return False
return DOM.getNodeType(node) == DOM.TEXT_NODE
def isTextNode(node):
if node is None:
return False
return DOM.getNodeType(node) == DOM.TEXT_NODE
