def handleSelectionChange(self):
"""Pushes focus to the newly selected object."""
if getattr(self,"_isHandlingSelectionChange",False):
# #3394: A COM event can cause this function to run within itself.
# This can cause double speaking, so stop here if we're already running.
return
self._isHandlingSelectionChange=True
try:
obj=self.selection
if not obj:
obj=IAccessible(windowHandle=self.windowHandle,IAccessibleObject=self.IAccessibleObject,IAccessibleChildID=self.IAccessibleChildID)
if obj and obj!=eventHandler.lastQueuedFocusObject:
eventHandler.queueEvent("gainFocus",obj)
finally:
self._isHandlingSelectionChange=False
def _iterEmbeddedObjs(self, hypertext, startIndex, direction):
"""Recursively iterate through all embedded objects in a given direction starting at a given hyperlink index.
"""
log.debug("Starting at hyperlink index %d" % startIndex)
for index in xrange(startIndex, hypertext.nHyperlinks if direction == "next" else -1, 1 if direction == "next" else -1):
hl = hypertext.hyperlink(index)
obj = IAccessible(IAccessibleObject=hl.QueryInterface(IAccessibleHandler.IAccessible2), IAccessibleChildID=0)
log.debug("Yielding object at index %d" % index)
yield obj
try:
objHt = obj.iaHypertext
except:
# This is a graphic, etc. which doesn't support text.
continue
log.debug("Object has hypertext. Recursing")
for subObj in self._iterEmbeddedObjs(objHt, 0 if direction == "next" else objHt.nHyperlinks - 1, direction):
yield subObj
def _getTableCellAt(self,tableID,startPos,destRow,destCol):
""" Override of documentBase.DocumentWithTableNavigation._getTableCellAt."""
# Locate the table in the object ancestry of the given document position.
obj=startPos.NVDAObjectAtStart
while not obj.table and obj!=startPos.obj.rootNVDAObject:
obj=obj.parent
if not obj.table:
# No table could be found
raise LookupError
table = obj.table
try:
cell = table.IAccessibleTable2Object.cellAt(destRow - 1, destCol - 1).QueryInterface(IAccessible2)
cell = IAccessible(IAccessibleObject=cell, IAccessibleChildID=0)
# If the cell we fetched is marked as hidden, raise LookupError which will instruct calling code to try an adjacent cell instead.
if cell.IA2Attributes.get('hidden'):
raise LookupError("Found hidden cell")
# Return the position of the found cell
return self.makeTextInfo(cell)
except (COMError, RuntimeError):
# Any of the above calls could throw a COMError, and sometimes a RuntimeError.
# Treet this as the cell not existing.
raise LookupError