test_selection_cross_shadow_boundary_2_backward_drag.html

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<!DOCTYPE HTML>

<script src="/tests/SimpleTest/EventUtils.js"></script>

<script src="/tests/SimpleTest/SimpleTest.js"></script>

<script type="application/javascript" src="/tests/layout/generic/test/selection_cross_shadow_boundary_helper.js"></script>

<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />

<script>

SimpleTest.waitForExplicitFinish();

function run() {

  const root1 = document.getElementById("host1").attachShadow({ mode: "open" });

  root1.innerHTML = "InnerText1";

  const root2 = document.getElementById("host2").attachShadow({ mode: "open" });

  root2.innerHTML = "<span>InnerText2</span>";

  const inner2 = root2.firstChild;

  const rect = inner2.getBoundingClientRect();

  const outer1 = document.getElementById("outer1");

  // Drag from the bottom right of InnerText2 to

  // the top left of OuterText1.

  drag(

    inner2,

    rect.width,

    rect.height,

    outer1,

0,

0);

  // Above drag should selects

  // "OuterText1", "OuterText2", "InnerText1" and "InnerText2".

  const sel = document.getSelection().getComposedRanges(root2)[0];

  // backward selection

  is(sel.endContainer, inner2.firstChild, "endContainer is the InnerText2");

  is(sel.endOffset, 10, "endOffset ends at the last character");

  is(sel.startContainer, outer1.firstChild, "startContainer is the OuterText1");

  is(sel.startOffset, 0, "startOffset starts at the first character");

  SimpleTest.finish();

</script>

<body onload="SimpleTest.waitForFocus(run);">

  <span id="outer1">OuterText1</span>

  <div id="host1"></div>

  <span id="outer2">OuterText2</span>

  <div id="host2"></div>

</body>