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-rw-r--r--lib/dom_utils.coffee12
1 files changed, 12 insertions, 0 deletions
diff --git a/lib/dom_utils.coffee b/lib/dom_utils.coffee
index 7c47179c..9658df2b 100644
--- a/lib/dom_utils.coffee
+++ b/lib/dom_utils.coffee
@@ -326,6 +326,18 @@ DomUtils =
document.body.removeChild div
coordinates
+ getSelectionFocusElement: ->
+ sel = window.getSelection()
+ if not sel.focusNode?
+ null
+ else if sel.focusNode == sel.anchorNode and sel.focusOffset == sel.anchorOffset
+ # The selection either *is* an element, or is inside an opaque element (eg. <input>).
+ sel.focusNode.childNodes[sel.focusOffset]
+ else if sel.focusNode.nodeType != sel.focusNode.ELEMENT_NODE
+ sel.focusNode.parentElement
+ else
+ sel.focusNode
+
# Get the text content of an element (and its descendents), but omit the text content of previously-visited
# nodes. See #1514.
# NOTE(smblott). This is currently O(N^2) (when called on N elements). An alternative would be to mark