browser_changes_rule_add.js

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/* Any copyright is dedicated to the Public Domain.

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

"use strict";

// Test that adding a new CSS rule in the Rules view is tracked in the Changes panel.

// Renaming the selector of the new rule should overwrite the tracked selector.

const TEST_URI = `

  <div></div>

`;

add_task(async function () {

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

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

  const { document: doc, store } = selectChangesView(inspector);

  const panel = doc.querySelector("#sidebar-panel-changes");

  await selectNode("div", inspector);

  await testTrackAddNewRule(store, inspector, ruleView, panel);

  await testTrackRenameNewRule(store, inspector, ruleView, panel);

});

async function testTrackAddNewRule(store, inspector, ruleView, panel) {

  const onTrackChange = waitForDispatch(store, "TRACK_CHANGE");

  info("Adding a new CSS rule in the Rule view");

  await addNewRule(inspector, ruleView);

  info("Pressing escape to leave the editor");

  EventUtils.synthesizeKey("KEY_Escape");

  info("Waiting for changes to be tracked");

  await onTrackChange;

  const addedSelectors = getAddedSelectors(panel);

  const removedSelectors = getRemovedSelectors(panel);

  is(addedSelectors.length, 1, "One selector was tracked as added");

  is(addedSelectors.item(0).title, "div", "New rule's has DIV selector");

  is(removedSelectors.length, 0, "No selectors tracked as removed");

async function testTrackRenameNewRule(store, inspector, ruleView, panel) {

  info("Focusing the first rule's selector name in the Rule view");

  const ruleEditor = getRuleViewRuleEditor(ruleView, 1);

  const editor = await focusEditableField(ruleView, ruleEditor.selectorText);

  info("Entering a new selector name");

  editor.input.value = ".test";

  // Expect two "TRACK_CHANGE" actions: one for removal, one for addition.

  const onTrackChange = waitForDispatch(store, "TRACK_CHANGE", 2);

  const onRuleViewChanged = once(ruleView, "ruleview-changed");

  EventUtils.synthesizeKey("KEY_Enter");

  await onRuleViewChanged;

  info("Waiting for changes to be tracked");

  await onTrackChange;

  const addedSelectors = getAddedSelectors(panel);

  const removedSelectors = getRemovedSelectors(panel);

  is(addedSelectors.length, 1, "One selector was tracked as added");

is(

    addedSelectors.item(0).title,

    ".test",

    "New rule's selector was updated in place."

);

  is(removedSelectors.length, 0, "No selectors tracked as removed");