third_party/WebKit/LayoutTests/editing/selection/offset-from-point-complex-scripts.html

   1 <!DOCTYPE html>
   2 <meta charset="utf-8">
   3 <div id="container">
   4     <p>مَ متن</p>
   5 </div>
   6 <div id=log></div>
   7 <script>
   8 testOffsetFromPoint(container.firstElementChild);
   9
  10 function testOffsetFromPoint(element) {
  11     var y = element.offsetTop + element.offsetHeight / 2;
  12     var xmin = element.offsetLeft;
  13     var xmax = xmin + element.offsetWidth;
  14     var lastCharacterOffset = null;
  15     var results = [];
  16     for (var x = xmin - 1; x <= xmax + 1; ++x) {
  17         var result = document.caretRangeFromPoint(x, y);
  18         var characterOffset = result ? result.startOffset : null;
  19         if (characterOffset === lastCharacterOffset)
  20             continue;
  21         results.push(characterOffset);
  22         lastCharacterOffset = characterOffset;
  23     }
  24     var div = document.createElement("div");
  25     div.innerText = results.join(" ");
  26     log.appendChild(div);
  27 }
  28
  29 if (window.testRunner) {
  30     container.style.display = "none";
  31     testRunner.dumpAsText();
  32 }
  33 </script>