browser_rules_add-rule-with-menu.js

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/* Any copyright is dedicated to the Public Domain.

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

"use strict";

// Tests the a new CSS rule can be added using the context menu.

const nodeConstants = require("resource://devtools/shared/dom-node-constants.js");

const TEST_URI = `

  <style>

    :where(#testid)::before {

      content: "before ";

  </style>

  <div id="testid">${

    // put a text node big enough so the text node is not inlined

    "Test Node  ".repeat(50)

  }</div>`;

add_task(async function () {

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

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

  // Retrieve the different node fronts we're going to use

  const testidNodeFront = await getNodeFront("#testid", inspector);

  const children = await inspector.walker.children(testidNodeFront);

  const [beforeNodeFront, textNodeFront] = children.nodes;

  info("Add new rule on regular node");

    await selectNode(testidNodeFront, inspector);

    info("Waiting for context menu to be shown");

    const menuitemAddRule = getAddNewRuleContextMenuItem(view);

    ok(menuitemAddRule.visible, "Add rule is visible");

    ok(!menuitemAddRule.disabled, "Add rule is not disabled");

    info("Adding the new rule and expecting a new-rule-added event");

    const onNewRuleAdded = view.once("new-rule-added");

    menuitemAddRule.click();

    await onNewRuleAdded;

    const ruleEditor = getRuleViewRuleEditor(view, 4);

    const editor = ruleEditor.selectorText.ownerDocument.activeElement;

    is(editor.value, "#testid", "Selector editor value is as expected");

    // Escaping from the selector field

    EventUtils.synthesizeKey("KEY_Escape");

  info("Add new rule on pseudo element node");

    await selectNode(beforeNodeFront, inspector);

    // sanity check

is(

      inspector.selection.nodeFront.displayName,

      "::before",

      "We selected the ::before pseudo element"

);

    info("Waiting for context menu to be shown");

    const menuitemAddRule = getAddNewRuleContextMenuItem(view);

    ok(menuitemAddRule.visible, "Add rule is visible");

    ok(!menuitemAddRule.disabled, "Add rule is not disabled");

    info("Adding the new rule and expecting a new-rule-added event");

    const onNewRuleAdded = view.once("new-rule-added");

    menuitemAddRule.click();

    await onNewRuleAdded;

    const ruleEditor = getRuleViewRuleEditor(view, 0);

    const editor = ruleEditor.selectorText.ownerDocument.activeElement;

    is(editor.value, "#testid::before", "Selector editor value is as expected");

    // Escaping from the selector field

    EventUtils.synthesizeKey("KEY_Escape");

  info("Check that context menu is disabled when text node is selected");

  await selectNode(textNodeFront, inspector);

  // sanity check

is(

    inspector.selection.nodeFront.nodeType,

    nodeConstants.TEXT_NODE,

    "We selected the text node"

);

  info("Waiting for context menu to be shown");

  const menuitemAddRule = getAddNewRuleContextMenuItem(view);

  ok(menuitemAddRule.visible, "Add rule is visible");

ok(

    menuitemAddRule.disabled,

    "Add rule is disabled when a text node is selected"

);

});

function getAddNewRuleContextMenuItem(view) {

  const allMenuItems = openStyleContextMenuAndGetAllItems(view, view.element);

  return allMenuItems.find(

    item =>

      item.label ===

      STYLE_INSPECTOR_L10N.getStr("styleinspector.contextmenu.addNewRule")

);