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Test Info:
/* Any copyright is dedicated to the Public Domain.
"use strict";
// Tests that when the order of properties in the inline style changes, the inline style
// rule updates accordingly.
// This can happen in cases such as this one:
// Given this DOM node:
// <div style="margin:0;color:red;"></div>
// Executing this:
// element.style.margin = "10px";
// Will result in the following attribute value:
// <div style="color: red; margin: 10px;"></div>
// The inline style rule in the rule-view need to update to reflect the new order of
// properties accordingly.
// Note however that we do not want to expect a specific order in this test, and be
// subject to failures if it changes again. Instead, the test compares the order against
// what is in the style DOM attribute.
// Test cases, these are { name, value } objects used to change the DOM element's style
// property. After each of these changes, the inline style rule's content will be checked
// against the style DOM attribute's content.
const TEST_CASES = [
{ name: "margin", value: "10px" },
{ name: "color", value: "blue" },
{ name: "padding", value: "20px" },
{ name: "margin", value: "0px" },
{ name: "color", value: "black" },
];
add_task(async function () {
const { linkedBrowser: browser } = await addTab(
`data:text/html;charset=utf-8,<div style="margin:0;color:red;">Inspect me!</div>`
);
const { inspector, view } = await openRuleView();
await selectNode("div", inspector);
for (const { name, value } of TEST_CASES) {
info(`Setting style.${name} to ${value} on the test node`);
const onStyleMutation = waitForStyleModification(inspector);
const onRuleRefreshed = inspector.once("rule-view-refreshed");
await SpecialPowers.spawn(
browser,
[{ name, value }],
async function (change) {
content.document.querySelector("div").style[change.name] = change.value;
}
);
await Promise.all([onStyleMutation, onRuleRefreshed]);
info("Getting and parsing the content of the node's style attribute");
const markupContainer = inspector.markup.getContainer(
inspector.selection.nodeFront
);
const styleAttrValue =
markupContainer.elt.querySelector(".attr-value").textContent;
const parsedStyleAttr = styleAttrValue
.split(";")
.filter(v => v.trim())
.map(decl => {
const nameValue = decl.split(":").map(v => v.trim());
return { name: nameValue[0], value: nameValue[1] };
});
info("Checking the content of the rule-view");
const ruleEditor = getRuleViewRuleEditor(view, 0);
const propertiesEls = ruleEditor.propertyList.children;
parsedStyleAttr.forEach((expected, i) => {
is(
propertiesEls[i].querySelector(".ruleview-propertyname").textContent,
expected.name,
`Correct name found for property ${i}`
);
is(
propertiesEls[i].querySelector(".ruleview-propertyvalue").textContent,
expected.value,
`Correct value found for property ${i}`
);
});
}
});