test_styles-layout.html

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<meta charset="utf-8">

<title>Test for Bug 1175040 - PageStyleActor.getLayout</title>

<script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>

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

<script type="application/javascript" src="inspector-helpers.js"></script>

<script type="application/javascript">

"use strict";

window.onload = function() {

  SimpleTest.waitForExplicitFinish();

  runNextTest();

};

let gWalker = null;

let gStyles = null;

addTest(async function() {

  const url = document.getElementById("inspectorContent").href;

  const { target } = await attachURL(url);

  const inspector = await target.getFront("inspector");

  gWalker = inspector.walker;

  gStyles = await inspector.getPageStyle();

  runNextTest();

});

addTest(function() {

  ok(gStyles.getLayout, "The PageStyleActor has a getLayout method");

  runNextTest();

});

addAsyncTest(async function() {

  const node = await gWalker.querySelector(gWalker.rootNode, "#layout-element");

  const layout = await gStyles.getLayout(node, {});

  const properties = ["width", "height",

                      "margin-top", "margin-right", "margin-bottom",

                      "margin-left", "padding-top", "padding-right",

                      "padding-bottom", "padding-left", "border-top-width",

                      "border-right-width", "border-bottom-width",

                      "border-left-width", "z-index", "box-sizing", "display",

                      "position"];

  for (const prop of properties) {

    ok((prop in layout), "The layout object returned has " + prop);

  runNextTest();

});

addAsyncTest(async function() {

  const node = await gWalker.querySelector(gWalker.rootNode, "#layout-element");

  const layout = await gStyles.getLayout(node, {});

  const expected = {

    "box-sizing": "border-box",

    "position": "absolute",

    "z-index": "2",

    "display": "block",

    "width": 50,

    "height": 50,

    "margin-top": "10px",

    "margin-right": "20px",

    "margin-bottom": "30px",

    "margin-left": "0px",

};

  for (const name in expected) {

    is(layout[name], expected[name], "The " + name + " property is correct");

  runNextTest();

});

addAsyncTest(async function() {

  const node = await gWalker.querySelector(gWalker.rootNode,

                                         "#layout-auto-margin-element");

  let layout = await gStyles.getLayout(node, {});

  ok(!("autoMargins" in layout),

     "By default, getLayout doesn't return auto margins");

  layout = await gStyles.getLayout(node, {autoMargins: true});

  ok(("autoMargins" in layout),

     "getLayout does return auto margins when asked to");

  is(layout.autoMargins.left, "auto", "The left margin is auto");

  is(layout.autoMargins.right, "auto", "The right margin is auto");

  ok(!layout.autoMargins.bottom, "The bottom margin is not auto");

  ok(!layout.autoMargins.top, "The top margin is not auto");

  runNextTest();

});

addTest(function() {

  gStyles = gWalker = null;

  runNextTest();

});

</script>

</head>

<body>

<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1175040">Mozilla Bug 1175040</a>

<a id="inspectorContent" target="_blank" href="inspector-styles-data.html">Test Document</a>

<p id="display"></p>

<div id="content" style="display: none"></div>

<pre id="test">

</pre>

</body>

</html>