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/* Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/ */
"use strict";
// Check that user agent styles are inspectable via rule view if
// it is preffed on.
var PREF_UA_STYLES = "devtools.inspector.showUserAgentStyles";
const { PrefObserver } = require("resource://devtools/client/shared/prefs.js");
const TEST_URI = URL_ROOT + "doc_author-sheet.html";
const TEST_DATA = [
{
selector: "blockquote",
numUserRules: 1,
numUARules: 0,
},
{
selector: "pre",
numUserRules: 1,
numUARules: 0,
},
{
selector: "input[type=range]",
numUserRules: 1,
numUARules: 0,
},
{
selector: "input[type=number]",
numUserRules: 1,
numUARules: 0,
},
{
selector: "input[type=color]",
numUserRules: 1,
numUARules: 0,
},
{
selector: "input[type=text]",
numUserRules: 1,
numUARules: 0,
},
{
selector: "progress",
numUserRules: 1,
numUARules: 0,
},
// Note that some tests below assume that the "a" selector is the
// last test in TEST_DATA.
{
selector: "a",
numUserRules: 3,
numUARules: 0,
},
];
add_task(async function () {
// Bug 1517210: GC heuristics are broken for this test, so that the test ends up
// running out of memory if we don't force to reduce the GC side before/after the test.
Cu.forceShrinkingGC();
requestLongerTimeout(4);
info("Starting the test with the pref set to true before toolbox is opened");
await setUserAgentStylesPref(true);
await addTab(TEST_URI);
const { inspector, view } = await openRuleView();
info("Making sure that UA styles are visible on initial load");
await userAgentStylesVisible(inspector, view);
info("Making sure that setting the pref to false hides UA styles");
await setUserAgentStylesPref(false);
await userAgentStylesNotVisible(inspector, view);
info("Making sure that resetting the pref to true shows UA styles again");
await setUserAgentStylesPref(true);
await userAgentStylesVisible(inspector, view);
info("Resetting " + PREF_UA_STYLES);
Services.prefs.clearUserPref(PREF_UA_STYLES);
// Bug 1517210: GC heuristics are broken for this test, so that the test ends up
// running out of memory if we don't force to reduce the GC side before/after the test.
Cu.forceShrinkingGC();
});
async function setUserAgentStylesPref(val) {
info("Setting the pref " + PREF_UA_STYLES + " to: " + val);
// Reset the pref and wait for PrefObserver to callback so UI
// has a chance to get updated.
const prefObserver = new PrefObserver("devtools.");
const oncePrefChanged = new Promise(resolve => {
prefObserver.on(PREF_UA_STYLES, onPrefChanged);
function onPrefChanged() {
prefObserver.off(PREF_UA_STYLES, onPrefChanged);
resolve();
}
});
Services.prefs.setBoolPref(PREF_UA_STYLES, val);
await oncePrefChanged;
}
async function userAgentStylesVisible(inspector, view) {
info("Making sure that user agent styles are currently visible");
let userRules;
let uaRules;
for (const data of TEST_DATA) {
await selectNode(data.selector, inspector);
await compareAppliedStylesWithUI(inspector, view, "ua");
userRules = view._elementStyle.rules.filter(rule => rule.editor.isEditable);
uaRules = view._elementStyle.rules.filter(rule => !rule.editor.isEditable);
is(userRules.length, data.numUserRules, "Correct number of user rules");
Assert.greater(uaRules.length, data.numUARules, "Has UA rules");
}
ok(
userRules.some(rule => rule.matchedDesugaredSelectors.length === 1),
"There is an inline style for element in user styles"
);
// These tests rely on the "a" selector being the last test in
// TEST_DATA.
ok(
uaRules.some(rule => {
return rule.matchedDesugaredSelectors.includes(":any-link");
}),
"There is a rule for :any-link"
);
ok(
uaRules.some(rule => {
return rule.matchedDesugaredSelectors.includes(":link");
}),
"There is a rule for :link"
);
ok(
uaRules.some(rule => {
return rule.matchedDesugaredSelectors.length === 1;
}),
"Inline styles for ua styles"
);
}
async function userAgentStylesNotVisible(inspector, view) {
info("Making sure that user agent styles are not currently visible");
let userRules;
let uaRules;
for (const data of TEST_DATA) {
await selectNode(data.selector, inspector);
await compareAppliedStylesWithUI(inspector, view);
userRules = view._elementStyle.rules.filter(rule => rule.editor.isEditable);
uaRules = view._elementStyle.rules.filter(rule => !rule.editor.isEditable);
is(userRules.length, data.numUserRules, "Correct number of user rules");
is(uaRules.length, data.numUARules, "No UA rules");
}
}
async function compareAppliedStylesWithUI(inspector, view, filter) {
info("Making sure that UI is consistent with pageStyle.getApplied");
const pageStyle = inspector.selection.nodeFront.inspectorFront.pageStyle;
let entries = await pageStyle.getApplied(inspector.selection.nodeFront, {
inherited: true,
matchedSelectors: true,
filter,
});
// We may see multiple entries that map to a given rule; filter the
// duplicates here to match what the UI does.
const entryMap = new Map();
for (const entry of entries) {
entryMap.set(entry.rule, entry);
}
entries = [...entryMap.values()];
const elementStyle = view._elementStyle;
await waitFor(() => elementStyle.rules.length === entries.length);
is(
elementStyle.rules.length,
entries.length,
"Should have correct number of rules (" + entries.length + ")"
);
entries = entries.sort((a, b) => {
return (a.pseudoElement || "z") > (b.pseudoElement || "z");
});
entries.forEach((entry, i) => {
const elementStyleRule = elementStyle.rules[i];
is(
!!elementStyleRule.inherited,
!!entry.inherited,
"Same inherited (" + entry.inherited + ")"
);
is(
elementStyleRule.isSystem,
entry.isSystem,
"Same isSystem (" + entry.isSystem + ")"
);
is(
elementStyleRule.editor.isEditable,
!entry.isSystem,
"Editor isEditable opposite of UA (" + entry.isSystem + ")"
);
});
}
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