/* Any copyright is dedicated to the Public Domain.
 http://creativecommons.org/publicdomain/zero/1.0/ */

"use strict";

// Tests removing a property by clearing the property name and pressing shift
// and tab keys, and checks if the focus is moved to the appropriate editable
// field.

const TEST_URI = `
  <style type='text/css'>
  #testid {
    background-color: #00F;
    color: #00F;
  }
  </style>
  <div id='testid'>Styled Node</div>
`;

add_task(async function() {
  await addTab("data:text/html;charset=utf-8," + encodeURIComponent(TEST_URI));
  const { inspector, view } = await openRuleView();
  await selectNode("#testid", inspector);

  info("Getting the second property in the rule");
  const rule = getRuleViewRuleEditor(view, 1).rule;
  let prop = rule.textProps[1];

  info("Clearing the property value and pressing shift-tab");
  let editor = await focusEditableField(view, prop.editor.valueSpan);
  const onValueDone = view.once("ruleview-changed");
  editor.input.value = "";
  EventUtils.synthesizeKey("VK_TAB", { shiftKey: true }, view.styleWindow);
  await onValueDone;

  let newValue = await getRulePropertyValue(0, 0, "color");
  is(newValue, "", "color should have been unset.");
  is(
    prop.editor.valueSpan.textContent,
    "",
    "'' property value is correctly set."
  );

  info("Pressing shift-tab again to focus the previous property value");
  const onValueFocused = view.once("ruleview-changed");
  EventUtils.synthesizeKey("VK_TAB", { shiftKey: true }, view.styleWindow);
  await onValueFocused;

  info("Getting the first property in the rule");
  prop = rule.textProps[0];

  editor = inplaceEditor(view.styleDocument.activeElement);
  is(
    inplaceEditor(prop.editor.valueSpan),
    editor,
    "Focus should have moved to the previous property value"
  );

  info("Pressing shift-tab again to focus the property name");
  const onNameFocused = view.once("ruleview-changed");
  EventUtils.synthesizeKey("VK_TAB", { shiftKey: true }, view.styleWindow);
  await onNameFocused;

  info("Removing the name and pressing shift-tab to focus the selector");
  const onNameDeleted = view.once("ruleview-changed");
  EventUtils.synthesizeKey("VK_DELETE", {}, view.styleWindow);
  EventUtils.synthesizeKey("VK_TAB", { shiftKey: true }, view.styleWindow);
  await onNameDeleted;

  newValue = await getRulePropertyValue(0, 0, "background-color");
  is(newValue, "", "background-color should have been unset.");

  editor = inplaceEditor(view.styleDocument.activeElement);
  is(
    inplaceEditor(rule.editor.selectorText),
    editor,
    "Focus should have moved to the selector text."
  );
  is(rule.textProps.length, 0, "All properties should have been removed.");
  ok(
    !rule.editor.propertyList.hasChildNodes(),
    "Should not have any properties."
  );
});
