browser_inspector_highlighter-measure_01.js

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/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

"use strict";

const TEST_URL = `data:text/html;charset=utf-8,

                    <div style='

                        position:absolute;

                        left: 0;

                        top: 0;

                        width: 40000px;

                        height: 8000px'>

                    </div>`;

const PREFIX = "measuring-tool-";

const HIGHLIGHTER_TYPE = "MeasuringToolHighlighter";

const X = 32;

const Y = 20;

add_task(async function () {

  const helper = await openInspectorForURL(TEST_URL).then(

    getHighlighterHelperFor(HIGHLIGHTER_TYPE)

);

  const { finalize } = helper;

  helper.prefix = PREFIX;

  await isHiddenByDefault(helper);

  await areLabelsHiddenByDefaultWhenShows(helper);

  await areLabelsProperlyDisplayedWhenMouseMoved(helper);

  await finalize();

});

async function isHiddenByDefault({ isElementHidden }) {

  info("Checking the highlighter is hidden by default");

  let hidden = await isElementHidden("root");

  ok(hidden, "highlighter's root is hidden by default");

  hidden = await isElementHidden("label-size");

  ok(hidden, "highlighter's label size is hidden by default");

  hidden = await isElementHidden("label-position");

  ok(hidden, "highlighter's label position is hidden by default");

async function areLabelsHiddenByDefaultWhenShows({ isElementHidden, show }) {

  info("Checking the highlighter is displayed when asked");

  await show();

  let hidden = await isElementHidden("elements");

  is(hidden, false, "highlighter is visible after show");

  hidden = await isElementHidden("label-size");

  ok(hidden, "label's size still hidden");

  hidden = await isElementHidden("label-position");

  ok(hidden, "label's position still hidden");

async function areLabelsProperlyDisplayedWhenMouseMoved({

  isElementHidden,

  synthesizeMouse,

  getElementTextContent,

}) {

  info("Checking labels are properly displayed when mouse moved");

  await synthesizeMouse({

    selector: ":root",

    options: { type: "mousemove" },

    x: X,

    y: Y,

});

  let hidden = await isElementHidden("label-position");

  is(hidden, false, "label's position is displayed after the mouse is moved");

  hidden = await isElementHidden("label-size");

  ok(hidden, "label's size still hidden");

  const text = await getElementTextContent("label-position");

  const [x, y] = text.replace(/ /g, "").split(/\n/);

  is(+x, X, "label's position shows the proper X coord");

  is(+y, Y, "label's position shows the proper Y coord");