rust/util/gh-pages/script.js

627 lines
20 KiB
JavaScript

function storeValue(settingName, value) {
try {
localStorage.setItem(`clippy-lint-list-${settingName}`, value);
} catch (e) { }
}
function loadValue(settingName) {
return localStorage.getItem(`clippy-lint-list-${settingName}`);
}
function setTheme(theme, store) {
let enableHighlight = false;
let enableNight = false;
let enableAyu = false;
switch(theme) {
case "ayu":
enableAyu = true;
break;
case "coal":
case "navy":
enableNight = true;
break;
case "rust":
enableHighlight = true;
break;
default:
enableHighlight = true;
theme = "light";
break;
}
document.getElementsByTagName("body")[0].className = theme;
document.getElementById("githubLightHighlight").disabled = enableNight || !enableHighlight;
document.getElementById("githubDarkHighlight").disabled = !enableNight && !enableAyu;
document.getElementById("styleHighlight").disabled = !enableHighlight;
document.getElementById("styleNight").disabled = !enableNight;
document.getElementById("styleAyu").disabled = !enableAyu;
if (store) {
storeValue("theme", theme);
} else {
document.getElementById(`theme-choice`).value = theme;
}
}
window.searchState = {
timeout: null,
inputElem: document.getElementById("search-input"),
lastSearch: '',
clearInput: () => {
searchState.inputElem.value = "";
searchState.filterLints();
},
clearInputTimeout: () => {
if (searchState.timeout !== null) {
clearTimeout(searchState.timeout);
searchState.timeout = null
}
},
resetInputTimeout: () => {
searchState.clearInputTimeout();
setTimeout(searchState.filterLints, 50);
},
filterLints: () => {
function matchesSearch(lint, terms, searchStr) {
// Search by id
if (lint.elem.id.indexOf(searchStr) !== -1) {
return true;
}
// Search the description
// The use of `for`-loops instead of `foreach` enables us to return early
const docsLowerCase = lint.elem.textContent.toLowerCase();
for (const term of terms) {
// This is more likely and will therefore be checked first
if (docsLowerCase.indexOf(term) !== -1) {
return true;
}
if (lint.elem.id.indexOf(term) !== -1) {
return true;
}
return false;
}
return true;
}
searchState.clearInputTimeout();
let searchStr = searchState.inputElem.value.trim().toLowerCase();
if (searchStr.startsWith("clippy::")) {
searchStr = searchStr.slice(8);
}
if (searchState.lastSearch === searchStr) {
return;
}
searchState.lastSearch = searchStr;
const terms = searchStr.split(" ");
const cleanedSearchStr = searchStr.replaceAll("-", "_");
for (const lint of filters.getAllLints()) {
lint.searchFilteredOut = !matchesSearch(lint, terms, cleanedSearchStr);
if (lint.filteredOut) {
continue;
}
if (lint.searchFilteredOut) {
lint.elem.style.display = "none";
} else {
lint.elem.style.display = "";
}
}
if (searchStr.length > 0) {
window.location.hash = `/${searchStr}`;
} else {
window.location.hash = '';
}
},
};
function handleInputChanged(event) {
if (event.target !== document.activeElement) {
return;
}
searchState.resetInputTimeout();
}
function handleShortcut(ev) {
if (ev.ctrlKey || ev.altKey || ev.metaKey || disableShortcuts) {
return;
}
if (document.activeElement.tagName === "INPUT") {
if (ev.key === "Escape") {
document.activeElement.blur();
}
} else {
switch (ev.key) {
case "s":
case "S":
case "/":
ev.preventDefault(); // To prevent the key to be put into the input.
document.getElementById("search-input").focus();
break;
default:
break;
}
}
}
function toggleElements(filter, value) {
let needsUpdate = false;
let count = 0;
const element = document.getElementById(filters[filter].id);
onEachLazy(
element.querySelectorAll("ul input"),
el => {
if (el.checked !== value) {
el.checked = value;
filters[filter][el.getAttribute("data-value")] = value;
needsUpdate = true;
}
count += 1;
}
);
element.querySelector(".badge").innerText = value ? count : 0;
if (needsUpdate) {
filters.filterLints();
}
}
function changeSetting(elem) {
if (elem.id === "disable-shortcuts") {
disableShortcuts = elem.checked;
storeValue(elem.id, elem.checked);
}
}
function onEachLazy(lazyArray, func) {
const arr = Array.prototype.slice.call(lazyArray);
for (const el of arr) {
func(el);
}
}
function expandLintId(lintId) {
searchState.inputElem.value = lintId;
searchState.filterLints();
// Expand the lint.
const lintElem = document.getElementById(lintId);
const isCollapsed = lintElem.classList.remove("collapsed");
lintElem.querySelector(".label-doc-folding").innerText = "-";
}
// Show details for one lint
function openLint(event) {
event.preventDefault();
event.stopPropagation();
expandLintId(event.target.getAttribute("href").slice(1));
}
function expandLint(lintId) {
const lintElem = document.getElementById(lintId);
const isCollapsed = lintElem.classList.toggle("collapsed");
lintElem.querySelector(".label-doc-folding").innerText = isCollapsed ? "+" : "-";
}
function copyToClipboard(event) {
event.preventDefault();
event.stopPropagation();
const clipboard = event.target;
let resetClipboardTimeout = null;
const resetClipboardIcon = clipboard.innerHTML;
function resetClipboard() {
resetClipboardTimeout = null;
clipboard.innerHTML = resetClipboardIcon;
}
navigator.clipboard.writeText("clippy::" + clipboard.parentElement.id.slice(5));
clipboard.innerHTML = "✓";
if (resetClipboardTimeout !== null) {
clearTimeout(resetClipboardTimeout);
}
resetClipboardTimeout = setTimeout(resetClipboard, 1000);
}
function handleBlur(event, elementId) {
const parent = document.getElementById(elementId);
if (!parent.contains(document.activeElement) &&
!parent.contains(event.relatedTarget)
) {
parent.classList.remove("open");
}
}
function toggleExpansion(expand) {
onEachLazy(
document.querySelectorAll("article"),
expand ? el => el.classList.remove("collapsed") : el => el.classList.add("collapsed"),
);
}
// Returns the current URL without any query parameter or hash.
function getNakedUrl() {
return window.location.href.split("?")[0].split("#")[0];
}
const GROUPS_FILTER_DEFAULT = {
cargo: true,
complexity: true,
correctness: true,
nursery: true,
pedantic: true,
perf: true,
restriction: true,
style: true,
suspicious: true,
deprecated: false,
};
const LEVEL_FILTERS_DEFAULT = {
allow: true,
warn: true,
deny: true,
none: true,
};
const APPLICABILITIES_FILTER_DEFAULT = {
Unspecified: true,
MachineApplicable: true,
MaybeIncorrect: true,
HasPlaceholders: true,
};
const URL_PARAMS_CORRESPONDANCE = {
"groups_filter": "groups",
"levels_filter": "levels",
"applicabilities_filter": "applicabilities",
"version_filter": "versions",
};
const VERSIONS_CORRESPONDANCE = {
"lte": "≤",
"gte": "≥",
"eq": "=",
};
window.filters = {
groups_filter: { id: "lint-groups", ...GROUPS_FILTER_DEFAULT },
levels_filter: { id: "lint-levels", ...LEVEL_FILTERS_DEFAULT },
applicabilities_filter: { id: "lint-applicabilities", ...APPLICABILITIES_FILTER_DEFAULT },
version_filter: {
"≥": null,
"≤": null,
"=": null,
},
allLints: null,
getAllLints: () => {
if (filters.allLints === null) {
filters.allLints = Array.prototype.slice.call(
document.getElementsByTagName("article"),
).map(elem => {
let version = elem.querySelector(".label-version").innerText;
// Strip the "pre " prefix for pre 1.29.0 lints
if (version.startsWith("pre ")) {
version = version.slice(4);
}
return {
elem: elem,
group: elem.querySelector(".label-lint-group").innerText,
level: elem.querySelector(".label-lint-level").innerText,
version: parseInt(version.split(".")[1]),
applicability: elem.querySelector(".label-applicability").innerText,
filteredOut: false,
searchFilteredOut: false,
};
});
}
return filters.allLints;
},
regenerateURLparams: () => {
const urlParams = new URLSearchParams(window.location.search);
function compareObjects(obj1, obj2) {
return (JSON.stringify(obj1) === JSON.stringify({ id: obj1.id, ...obj2 }));
}
function updateIfNeeded(filterName, obj2) {
const obj1 = filters[filterName];
const name = URL_PARAMS_CORRESPONDANCE[filterName];
if (!compareObjects(obj1, obj2)) {
urlParams.set(
name,
Object.entries(obj1).filter(
([key, value]) => value && key !== "id"
).map(
([key, _]) => key
).join(","),
);
} else {
urlParams.delete(name);
}
}
updateIfNeeded("groups_filter", GROUPS_FILTER_DEFAULT);
updateIfNeeded("levels_filter", LEVEL_FILTERS_DEFAULT);
updateIfNeeded(
"applicabilities_filter", APPLICABILITIES_FILTER_DEFAULT);
const versions = [];
if (filters.version_filter["="] !== null) {
versions.push(`eq:${filters.version_filter["="]}`);
}
if (filters.version_filter["≥"] !== null) {
versions.push(`gte:${filters.version_filter["≥"]}`);
}
if (filters.version_filter["≤"] !== null) {
versions.push(`lte:${filters.version_filter["≤"]}`);
}
if (versions.length !== 0) {
urlParams.set(URL_PARAMS_CORRESPONDANCE["version_filter"], versions.join(","));
} else {
urlParams.delete(URL_PARAMS_CORRESPONDANCE["version_filter"]);
}
let params = urlParams.toString();
if (params.length !== 0) {
params = `?${params}`;
}
const url = getNakedUrl() + params + window.location.hash
if (!history.state) {
history.pushState(null, "", url);
} else {
history.replaceState(null, "", url);
}
},
filterLints: () => {
// First we regenerate the URL parameters.
filters.regenerateURLparams();
for (const lint of filters.getAllLints()) {
lint.filteredOut = (!filters.groups_filter[lint.group]
|| !filters.levels_filter[lint.level]
|| !filters.applicabilities_filter[lint.applicability]
|| !(filters.version_filter["="] === null || lint.version === filters.version_filter["="])
|| !(filters.version_filter["≥"] === null || lint.version > filters.version_filter["≥"])
|| !(filters.version_filter["≤"] === null || lint.version < filters.version_filter["≤"])
);
if (lint.filteredOut || lint.searchFilteredOut) {
lint.elem.style.display = "none";
} else {
lint.elem.style.display = "";
}
}
},
};
function updateFilter(elem, filter, skipLintsFiltering) {
const value = elem.getAttribute("data-value");
if (filters[filter][value] !== elem.checked) {
filters[filter][value] = elem.checked;
const counter = document.querySelector(`#${filters[filter].id} .badge`);
counter.innerText = parseInt(counter.innerText) + (elem.checked ? 1 : -1);
if (!skipLintsFiltering) {
filters.filterLints();
}
}
}
function updateVersionFilters(elem, skipLintsFiltering) {
let value = elem.value.trim();
if (value.length === 0) {
value = null;
} else if (/^\d+$/.test(value)) {
value = parseInt(value);
} else {
console.error(`Failed to get version number from "${value}"`);
return;
}
const counter = document.querySelector("#version-filter .badge");
let count = 0;
onEachLazy(document.querySelectorAll("#version-filter input"), el => {
if (el.value.trim().length !== 0) {
count += 1;
}
});
counter.innerText = count;
const comparisonKind = elem.getAttribute("data-value");
if (filters.version_filter[comparisonKind] !== value) {
filters.version_filter[comparisonKind] = value;
if (!skipLintsFiltering) {
filters.filterLints();
}
}
}
function clearVersionFilters() {
let needsUpdate = false;
onEachLazy(document.querySelectorAll("#version-filter input"), el => {
el.value = "";
const comparisonKind = el.getAttribute("data-value");
if (filters.version_filter[comparisonKind] !== null) {
needsUpdate = true;
filters.version_filter[comparisonKind] = null;
}
});
document.querySelector("#version-filter .badge").innerText = 0;
if (needsUpdate) {
filters.filterLints();
}
}
function resetGroupsToDefault() {
let needsUpdate = false;
let count = 0;
onEachLazy(document.querySelectorAll("#lint-groups-selector input"), el => {
const key = el.getAttribute("data-value");
const value = GROUPS_FILTER_DEFAULT[key];
if (filters.groups_filter[key] !== value) {
filters.groups_filter[key] = value;
el.checked = value;
needsUpdate = true;
}
if (value) {
count += 1;
}
});
document.querySelector("#lint-groups .badge").innerText = count;
if (needsUpdate) {
filters.filterLints();
}
}
function generateListOfOptions(list, elementId, filter) {
let html = '';
let nbEnabled = 0;
for (const [key, value] of Object.entries(list)) {
const attr = value ? " checked" : "";
html += `\
<li class="checkbox">\
<label class="text-capitalize">\
<input type="checkbox" data-value="${key}" \
onchange="updateFilter(this, '${filter}')"${attr}/>${key}\
</label>\
</li>`;
if (value) {
nbEnabled += 1;
}
}
const elem = document.getElementById(`${elementId}-selector`);
elem.previousElementSibling.querySelector(".badge").innerText = `${nbEnabled}`;
elem.innerHTML += html;
setupDropdown(elementId);
}
function setupDropdown(elementId) {
const elem = document.getElementById(elementId);
const button = document.querySelector(`#${elementId} > button`);
button.onclick = () => elem.classList.toggle("open");
const setBlur = child => {
child.onblur = event => handleBlur(event, elementId);
};
onEachLazy(elem.children, setBlur);
onEachLazy(elem.querySelectorAll("input"), setBlur);
onEachLazy(elem.querySelectorAll("ul button"), setBlur);
}
function generateSettings() {
setupDropdown("settings-dropdown");
generateListOfOptions(LEVEL_FILTERS_DEFAULT, "lint-levels", "levels_filter");
generateListOfOptions(GROUPS_FILTER_DEFAULT, "lint-groups", "groups_filter");
generateListOfOptions(
APPLICABILITIES_FILTER_DEFAULT, "lint-applicabilities", "applicabilities_filter");
let html = '';
for (const kind of ["≥", "≤", "="]) {
html += `\
<li class="checkbox">\
<label>${kind}</label>\
<span>1.</span> \
<input type="number" \
min="29" \
class="version-filter-input form-control filter-input" \
maxlength="2" \
data-value="${kind}" \
onchange="updateVersionFilters(this)" \
oninput="updateVersionFilters(this)" \
onkeydown="updateVersionFilters(this)" \
onkeyup="updateVersionFilters(this)" \
onpaste="updateVersionFilters(this)" \
/>
<span>.0</span>\
</li>`;
}
document.getElementById("version-filter-selector").innerHTML += html;
setupDropdown("version-filter");
}
function generateSearch() {
searchState.inputElem.addEventListener("change", handleInputChanged);
searchState.inputElem.addEventListener("input", handleInputChanged);
searchState.inputElem.addEventListener("keydown", handleInputChanged);
searchState.inputElem.addEventListener("keyup", handleInputChanged);
searchState.inputElem.addEventListener("paste", handleInputChanged);
}
function scrollToLint(lintId) {
const target = document.getElementById(lintId);
if (!target) {
return;
}
target.scrollIntoView();
expandLintId(lintId);
}
// If the page we arrive on has link to a given lint, we scroll to it.
function scrollToLintByURL() {
const lintId = window.location.hash.substring(2);
if (lintId.length > 0) {
scrollToLint(lintId);
}
}
function parseURLFilters() {
const urlParams = new URLSearchParams(window.location.search);
for (const [key, value] of urlParams.entries()) {
for (const [corres_key, corres_value] of Object.entries(URL_PARAMS_CORRESPONDANCE)) {
if (corres_value === key) {
if (key !== "versions") {
const settings = new Set(value.split(","));
onEachLazy(document.querySelectorAll(`#lint-${key} ul input`), elem => {
elem.checked = settings.has(elem.getAttribute("data-value"));
updateFilter(elem, corres_key, true);
});
} else {
const settings = value.split(",").map(elem => elem.split(":"));
for (const [kind, value] of settings) {
const elem = document.querySelector(
`#version-filter input[data-value="${VERSIONS_CORRESPONDANCE[kind]}"]`);
elem.value = value;
updateVersionFilters(elem, true);
}
}
}
}
}
}
// loading the theme after the initial load
const prefersDark = window.matchMedia("(prefers-color-scheme: dark)");
const theme = loadValue('theme');
if (prefersDark.matches && !theme) {
setTheme("coal", false);
} else {
setTheme(theme, false);
}
let disableShortcuts = loadValue('disable-shortcuts') === "true";
// To prevent having a "flash", we give back time to the web browser to finish rendering with
// theme applied before finishing the rendering.
setTimeout(() => {
document.getElementById("disable-shortcuts").checked = disableShortcuts;
document.addEventListener("keypress", handleShortcut);
document.addEventListener("keydown", handleShortcut);
generateSettings();
generateSearch();
parseURLFilters();
scrollToLintByURL();
filters.filterLints();
onEachLazy(document.querySelectorAll("pre > code.language-rust"), el => hljs.highlightElement(el));
}, 0);