Quelle test_getElementsWithGrid.html Sprache: HTML

products/Sources/formale Sprachen/C/Firefox/dom/base/test/chrome/test_getElementsWithGrid.html

<!doctype html>
<html id="root" class="g">
<head>
<meta charset="utf-8">
<script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css" />
<style>
.no-match {
  display: block;
}
.g {
  display: grid;
}
.s {
  display: subgrid;
}
.gi {
  display: inline-grid;
}
</style>

<script>
"use strict";

SimpleTest.waitForExplicitFinish();

function testTargetsAreInElements(targets, elements) {
  let c = 0;
  for (let target of targets) {
    if (c >= elements.length) {
      ok(false, "We shouldn't have more targets than elements found.");
      break;
    }
    let element = elements[c];
    let isMatching = (target.id == element.id);
    let test_function = (target.todo ? todo : ok);

    test_function(isMatching, "Should find " + target.message + ".");

    // Only move to the next element in the elements if this one was a match.
    // This handles the case of an unexpected element showing up, and prevents
    // cascading errors in that case. If we've instead screwed up the target
    // list, then we will get cascading errors.
    if (isMatching) {
      ++c;
    }
  }

  // Make sure we don't have any extra elements after going through all the targets.
  is(c, elements.length, "We shouldn't have more elements than we have targets.");
}

function runTests() {
  // Part 1: Look for all the grid elements starting from the document root.
  let elementsFromRoot = document.documentElement.getElementsWithGrid();

  // Check that the expected elements were returned.
  // Targets are provided in order we expect them to appear.
  // Has to end in a non-todo element in order for testing logic to work.
  let targetsFromRoot = [
    {id: "root", message: "root with display:grid"},
    {id: "a", message: "'plain' grid container with display:grid"},
    {id: "b", message: "display:subgrid inside display:grid (to be fixed in Bug 1240834)", todo: true},
    {id: "c", message: "'plain' grid container with display:inline-grid"},
    {id: "d", message: "display:subgrid inside display:inline-grid (to be fixed in Bug 1240834)", todo: true},
    {id: "e", message: "grid container with visibility:hidden"},
    {id: "f", message: "grid container inside an element"},
    {id: "g", message: "overflow:scroll grid container"},
    {id: "h", message: "button as a grid container"},
    {id: "i", message: "fieldset as a grid container"},
    {id: "k1", message: "grid container containing a grid container"},
    {id: "k2", message: "grid container inside a grid container"},
  ];
  is(elementsFromRoot.length, 10, "Found expected number of elements within document root.");
  testTargetsAreInElements(targetsFromRoot, elementsFromRoot);

  // Part 2: Look for all the grid elements starting from a non-root element.
  let elementsFromNonRoot = document.getElementById("a_non_root_element").getElementsWithGrid();

  let targetsFromNonRoot = [
    {id: "f", message: "grid container inside an element (from non-root element)"},
  ];
  is(elementsFromNonRoot.length, 1, "Found expected number of elements from non-root element.");
  testTargetsAreInElements(targetsFromNonRoot, elementsFromNonRoot);

  SimpleTest.finish();
}
</script>
</head>
<body onLoad="runTests();">

<div id="a" class="g">
  <div class="no-match"></div>
  <div id="b" class="s"></div>
</div>

<div class="no-match"></div>

<div id="c" class="gi">
  <div id="d" class="s"></div>
</div>

<div id="e" class="g" style="visibility:hidden"></div>

<div id="a_non_root_element"><div id="f" class="g"></div></div>

<div class="no-match"></div>

<div id="g" style="overflow:scroll" class="g"></div>

<button id="h" class="g"></button>

<fieldset id="i" class="g"></fieldset>

<div id="a_display_none_element" style="display:none"><div id="j" class="g"></div></div>

<div id="k1" class="g"><div id="k2" class="g"></div></div>

</body>
</html>

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