The Tor Browser / file revision

 /* vim: set ft=javascript ts=2 et sw=2 tw=80: */

 /* Any copyright is dedicated to the Public Domain.

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

 "use strict";

 // Checking properties orders and overrides in the rule-view

 let test = asyncTest(function*() {

   yield addTab("data:text/html;charset=utf-8,browser_ruleview_manipulation.js");

   let {toolbox, inspector, view} = yield openRuleView();

   info("Creating the test document and getting the test node");

   content.document.body.innerHTML = '<div id="testid">Styled Node</div>';

   let element = getNode("#testid");

   yield selectNode(element, inspector);

   let elementStyle = view._elementStyle;

   let elementRule = elementStyle.rules[0];

   info("Checking rules insertion order and checking the applied style");

   let firstProp = elementRule.createProperty("background-color", "green", "");

   let secondProp = elementRule.createProperty("background-color", "blue", "");

   is(elementRule.textProps[0], firstProp, "Rules should be in addition order.");

   is(elementRule.textProps[1], secondProp, "Rules should be in addition order.");

   yield elementRule._applyingModifications;

   is(element.style.getPropertyValue("background-color"), "blue", "Second property should have been used.");

   info("Removing the second property and checking the applied style again");

   secondProp.remove();

   yield elementRule._applyingModifications;

   is(element.style.getPropertyValue("background-color"), "green", "After deleting second property, first should be used.");

   info("Creating a new second property and checking that the insertion order is still the same");

   secondProp = elementRule.createProperty("background-color", "blue", "");

   yield elementRule._applyingModifications;

   is(element.style.getPropertyValue("background-color"), "blue", "New property should be used.");

   is(elementRule.textProps[0], firstProp, "Rules shouldn't have switched places.");

   is(elementRule.textProps[1], secondProp, "Rules shouldn't have switched places.");

   info("Disabling the second property and checking the applied style");

   secondProp.setEnabled(false);

   yield elementRule._applyingModifications;

   is(element.style.getPropertyValue("background-color"), "green", "After disabling second property, first value should be used");

   info("Disabling the first property too and checking the applied style");

   firstProp.setEnabled(false);

   yield elementRule._applyingModifications;

   is(element.style.getPropertyValue("background-color"), "", "After disabling both properties, value should be empty.");

   info("Re-enabling the second propertyt and checking the applied style");

   secondProp.setEnabled(true);

   yield elementRule._applyingModifications;

   is(element.style.getPropertyValue("background-color"), "blue", "Value should be set correctly after re-enabling");

   info("Re-enabling the first property and checking the insertion order is still respected");

   firstProp.setEnabled(true);

   yield elementRule._applyingModifications;

   is(element.style.getPropertyValue("background-color"), "blue", "Re-enabling an earlier property shouldn't make it override a later property.");

   is(elementRule.textProps[0], firstProp, "Rules shouldn't have switched places.");

   is(elementRule.textProps[1], secondProp, "Rules shouldn't have switched places.");

   info("Modifying the first property and checking the applied style");

   firstProp.setValue("purple", "");

   yield elementRule._applyingModifications;

   is(element.style.getPropertyValue("background-color"), "blue", "Modifying an earlier property shouldn't override a later property.");

 });