private boolean matchesSelectionTextNodes(Text nodelet, int affectedAfterOffset) {
if (savedSelection == null) {
return false;
}
if (savedSelection.isOrdered()) {
if (nodelet == savedSelectionAnchorTextNodelet) {
return savedSelectionAnchorOffset > affectedAfterOffset;
} else if (nodelet == savedSelectionFocusTextNodelet) {
return true;
}
} else {
// The inverse of the above
if (nodelet == savedSelectionFocusTextNodelet) {
return savedSelectionFocusOffset > affectedAfterOffset;
} else if (nodelet == savedSelectionAnchorTextNodelet) {
return true;
}
}
return false;
}
/**
* Same as {@link #restoreSelection()}, but if the selection is actually required to be explicitly
* set, transform its saved location with the given modifier.
*/
public void restoreSelection(DocOp modifier) {
savedSelectionDepth--;
if (editingConcerns != null && savedSelectionDepth == 0) {
try {
if (savedSelection != null) {
// selectionChangedInappropriately() only deals with selection boundaries. If we had
// a ranged selection, and we're in a browser where changing it internally matters,
// then just always restore the selection. This is safe to do w.r.t. IMEs because it's
// unlikely to have a ranged selection during an uncommitted IME state.
needToRestoreSelection |=
QuirksConstants.RANGED_SELECTION_AFFECTED_BY_INTERNAL_CHANGED
&& !savedSelection.isCollapsed();
if (needToRestoreSelection || selectionChangedInappropriately()) {
if (modifier != null) {
savedSelection = RangeHelper.applyModifier(savedSelection, modifier);
}
EditorStaticDeps.logger.trace().log("Restoring selection");
if (document.size() >= 4) {
editingConcerns.getSelectionHelper().setSelectionRange(savedSelection);
}
} else {
EditorStaticDeps.logger.trace().log("Not restoring selection");
}
}
} finally {
savedSelection = null;
savedSelectionAnchor = null;
savedSelectionAnchorTextNodelet = null;
savedSelectionAnchorOffset = 0;
savedSelectionFocus = null;
savedSelectionFocusTextNodelet = null;
savedSelectionFocusOffset = 0;
}
}
}