tor-browser

The Tor Browser
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Range-isPointInRange.html (3161B)

      1 <!doctype html>
      2 <title>Range.isPointInRange() with ShadowDOM selection tests</title>
      3 <link rel="author" title="Sean Feng" href=sefeng@mozilla.com>
      4 <div id=log></div>
      5 <script src=/resources/testharness.js></script>
      6 <script src=/resources/testharnessreport.js></script>
      7 <span id="start">Start</span>
      8 <div id="host">
      9  <template shadowrootmode="open">
     10    <span id="inner1">Inner1</span>
     11    <span id="inner2">Inner2</span>
     12  </template>
     13 </div>
     14 <span id="end">End</span>
     15 <script>
     16 "use strict";
     17 
     18 test(function() {
     19  assert_implements(window.getSelection().getComposedRanges, "GetComposedRanges is not supported");
     20  const start = document.getElementById("start");
     21  const shadowRoot = document.getElementById("host").shadowRoot;
     22 
     23  const end = shadowRoot.getElementById("inner2");
     24  const inner1 = shadowRoot.getElementById("inner1");
     25 
     26  window.getSelection().setBaseAndExtent(start.firstChild, 3, end.firstChild, 3);
     27 
     28  const composedRange = window.getSelection().getComposedRanges({ shadowRoots: [shadowRoot] })[0];
     29  // Sanity check to make sure we have selected something across the shadow boundary.
     30  assert_true(composedRange.startContainer == start.firstChild);
     31  assert_true(composedRange.startOffset == 3);
     32  assert_true(composedRange.endContainer == end.firstChild);
     33  assert_true(composedRange.endOffset == 3);
     34 
     35  assert_true(window.getSelection().isCollapsed, "Selection should be collapsed");
     36 
     37  const range = window.getSelection().getRangeAt(0);
     38  assert_false(range.isPointInRange(inner1, 0), "inner1 is in the shadow tree, should not be in the range");
     39  assert_true(range.comparePoint(inner1, 0) == -1, "inner1 is in the shadow tree, should return -1 for comparison");
     40 }, "isPointInRange() test for collapsed selection");
     41 
     42 test(function() {
     43  const start = document.getElementById("start");
     44  const shadowRoot = document.getElementById("host").shadowRoot;
     45 
     46  const end = document.getElementById("end");
     47  const inner1 = shadowRoot.getElementById("inner1");
     48 
     49  window.getSelection().setBaseAndExtent(start.firstChild, 3, end.firstChild, 3);
     50 
     51  const composedRange = window.getSelection().getRangeAt(0);
     52  // Sanity check to make sure we have selected something
     53  assert_true(composedRange.startContainer == start.firstChild);
     54  assert_true(composedRange.startOffset == 3);
     55  assert_true(composedRange.endContainer == end.firstChild);
     56  assert_true(composedRange.endOffset == 3);
     57 
     58  assert_false(window.getSelection().isCollapsed, "Range should not be collapsed");
     59 
     60  const range = window.getSelection().getRangeAt(0);
     61 
     62  assert_false(range.isPointInRange(inner1, 0), "inner1 is in the shadow tree, should not be in the range");
     63 
     64  // The selection is not collapsed so inner1 is not in the same tree as the selection.
     65  assert_throws_dom("WrongDocumentError", function() {
     66    range.comparePoint(inner1, 0);
     67  });
     68 
     69  const host = document.getElementById("host");
     70  assert_true(range.isPointInRange(host, 0), "host is not in the shadow tree, should be in the range");
     71  assert_true(range.comparePoint(host, 0) == 0, "host is not in the shadow tree, should return 0 for comparison");
     72 }, "isPointInRange() test for non-collapsed selection");
     73 
     74 </script>