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Polyfill caretRangeFromPoint()

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Gecko did not implment the older caretRangeFromPoint() and instead
implemented the newer caretPositionFromPoint()
This commit is contained in:
ispedals 2016-06-18 18:52:02 -04:00
parent 651231fbc1
commit 099d48ef48
1 changed files with 13 additions and 0 deletions
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13
ext/fg/js/range.js
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@ -16,6 +16,19 @@
* along with this program. If not, see <http://www.gnu.org/licenses/>. * 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 { class Range {
constructor(range) { constructor(range) {