/**
* {@inheritDoc}
*
* @see AbstractSelectionExecutable#execute(String)
*/
public boolean execute(String param) {
// Get the selected anchor
AnchorElement selectedAnchor = LinkExecutableUtils.getSelectedAnchor(rta);
if (selectedAnchor == null) {
return false;
}
Range range = rta.getDocument().getSelection().getRangeAt(0);
// unlink
// but first check where is the selection. If the selection is a caret and is at one side of the
// anchor, just
// move the caret out instead of removing the link
boolean moveSelection = range.isCollapsed();
boolean isBeginning = false;
boolean isEnd = false;
if (moveSelection) {
// check if it's at the beginning or at the end
isBeginning =
(domUtils.getFirstAncestor(
domUtils.getPreviousLeaf(range), LinkExecutableUtils.ANCHOR_TAG_NAME)
!= selectedAnchor)
&& range.getStartOffset() == 0;
isEnd =
(domUtils.getFirstAncestor(
domUtils.getNextLeaf(range), LinkExecutableUtils.ANCHOR_TAG_NAME)
!= selectedAnchor)
&& range.getEndOffset() == domUtils.getLength(range.getEndContainer());
}
if (moveSelection && (isEnd || isBeginning) && selectedAnchor.getOffsetWidth() > 0) {
// cursor it's at the beginning or at the end, move it out of the anchor
moveCaretOuside(rta, Element.as(selectedAnchor), isEnd);
} else {
Element.as(selectedAnchor).unwrap();
}
return true;
}
/**
* {@inheritDoc}
*
* @see AbstractSelectionExecutable#isEnabled()
*/
public boolean isEnabled() {
// check that there is a selected anchor
return super.isEnabled() && LinkExecutableUtils.getSelectedAnchor(rta) != null;
}
