browser_rules_filtereditor-revert-on-ESC.js

Enable keyboard shortcuts

/* Any copyright is dedicated to the Public Domain.

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

"use strict";

// Tests that changes made to the Filter Editor Tooltip are reverted when

// ESC is pressed

const TEST_URL = URL_ROOT + "doc_filter.html";

add_task(async function () {

  await addTab(TEST_URL);

  const { view } = await openRuleView();

  await testPressingEscapeRevertsChanges(view);

});

async function testPressingEscapeRevertsChanges(view) {

  const prop = getTextProperty(view, 1, { filter: "blur(2px) contrast(2)" });

  const propEditor = prop.editor;

  const swatch = propEditor.valueSpan.querySelector(".ruleview-filterswatch");

  await clickOnFilterSwatch(swatch, view);

  await setValueInFilterWidget("blur(2px)", view);

  await waitForComputedStyleProperty("body", null, "filter", "blur(2px)");

is(

    propEditor.valueSpan.textContent,

    "blur(2px)",

    "Got expected property value."

);

  await pressEscapeToCloseTooltip(view);

  await waitForComputedStyleProperty(

    "body",

    null,

    "filter",

    "blur(2px) contrast(2)"

);

is(

    propEditor.valueSpan.textContent,

    "blur(2px) contrast(2)",

    "Got expected property value."

);

async function clickOnFilterSwatch(swatch, view) {

  info("Clicking on a css filter swatch to open the tooltip");

  // Clicking on a cssfilter swatch sets the current filter value in the tooltip

  // which, in turn, makes the FilterWidget emit an "updated" event that causes

  // the rule-view to refresh. So we must wait for the ruleview-changed event.

  const onRuleViewChanged = view.once("ruleview-changed");

  swatch.click();

  await onRuleViewChanged;

async function setValueInFilterWidget(value, view) {

  info("Setting the CSS filter value in the tooltip");

  const filterTooltip = view.tooltips.getTooltip("filterEditor");

  const onRuleViewChanged = view.once("ruleview-changed");

  filterTooltip.widget.setCssValue(value);

  await onRuleViewChanged;

async function pressEscapeToCloseTooltip(view) {

  info("Pressing ESCAPE to close the tooltip");

  const filterTooltip = view.tooltips.getTooltip("filterEditor");

  const onRuleViewChanged = view.once("ruleview-changed");

  EventUtils.sendKey("ESCAPE", filterTooltip.widget.styleWindow);

  await onRuleViewChanged;