browser_styleinspector_transform-highlighter-02.js

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/* Any copyright is dedicated to the Public Domain.

 http://creativecommons.org/publicdomain/zero/1.0/ */

"use strict";

// Test that the css transform highlighter is created when hovering over a

// transform property

const TEST_URI = `

  <style type="text/css">

    body {

      transform: skew(16deg);

      color: yellow;

  </style>

  Test the css transform highlighter

`;

const { TYPES } = ChromeUtils.importESModule(

  "resource://devtools/shared/highlighters.mjs"

);

const TYPE = TYPES.TRANSFORM;

add_task(async function () {

  await addTab("data:text/html;charset=utf-8," + encodeURIComponent(TEST_URI));

  const { inspector, view } = await openRuleView();

  let hs = view.highlighters;

  ok(!hs.highlighters[TYPE], "No highlighter exists in the rule-view (1)");

  info("Faking a mousemove on a non-transform property");

  let { valueSpan } = getRuleViewProperty(view, "body", "color");

  hs.onMouseMove({ target: valueSpan });

  ok(!hs.highlighters[TYPE], "No highlighter exists in the rule-view (2)");

  info("Faking a mousemove on a transform property");

  ({ valueSpan } = getRuleViewProperty(view, "body", "transform"));

  let onHighlighterShown = hs.once("css-transform-highlighter-shown");

  hs.onMouseMove({ target: valueSpan });

  await onHighlighterShown;

  const onComputedViewReady = inspector.once("computed-view-refreshed");

  const cView = selectComputedView(inspector);

  await onComputedViewReady;

  hs = cView.highlighters;

  info("Remove the created transform highlighter");

  hs.highlighters[TYPE].finalize();

  hs.highlighters[TYPE] = null;

  info("Faking a mousemove on a non-transform property");

  ({ valueSpan } = getComputedViewProperty(cView, "color"));

  hs.onMouseMove({ target: valueSpan });

  ok(!hs.highlighters[TYPE], "No highlighter exists in the computed-view (3)");

  info("Faking a mousemove on a transform property");

  ({ valueSpan } = getComputedViewProperty(cView, "transform"));

  onHighlighterShown = hs.once("css-transform-highlighter-shown");

  hs.onMouseMove({ target: valueSpan });

  await onHighlighterShown;

ok(

    hs.highlighters[TYPE],

    "The highlighter has been created in the computed-view"

);

});