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-rw-r--r--ext/fg/js/range.js13
1 files changed, 13 insertions, 0 deletions
diff --git a/ext/fg/js/range.js b/ext/fg/js/range.js
index 182e242c..0befe279 100644
--- a/ext/fg/js/range.js
+++ b/ext/fg/js/range.js
@@ -16,6 +16,19 @@
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
+// Polyfill caretRangeFromPoint() using the newer caretPositionFromPoint()
+if (!document.caretRangeFromPoint){
+ document.caretRangeFromPoint = function polyfillcaretRangeFromPoint(x,y){
+ let range = document.createRange();
+ let position = document.caretPositionFromPoint(x,y);
+ if (!position) {
+ return null;
+ }
+ range.setStart(position.offsetNode, position.offset);
+ range.setEnd(position.offsetNode, position.offset);
+ return range;
+ };
+}
class Range {
constructor(range) {