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actix-extras/static.files/main-c2d2a5dbaed13e6b.js

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// Local js definitions:
/* global addClass, getSettingValue, hasClass, searchState */
/* global onEach, onEachLazy, removeClass */
"use strict";
// Get a value from the rustdoc-vars div, which is used to convey data from
// Rust to the JS. If there is no such element, return null.
function getVar(name) {
const el = document.getElementById("rustdoc-vars");
if (el) {
return el.attributes["data-" + name].value;
} else {
return null;
}
}
// Given a basename (e.g. "storage") and an extension (e.g. ".js"), return a URL
// for a resource under the root-path, with the resource-suffix.
function resourcePath(basename, extension) {
return getVar("root-path") + basename + getVar("resource-suffix") + extension;
}
function hideMain() {
addClass(document.getElementById(MAIN_ID), "hidden");
}
function showMain() {
removeClass(document.getElementById(MAIN_ID), "hidden");
}
function elemIsInParent(elem, parent) {
while (elem && elem !== document.body) {
if (elem === parent) {
return true;
}
elem = elem.parentElement;
}
return false;
}
function blurHandler(event, parentElem, hideCallback) {
if (!elemIsInParent(document.activeElement, parentElem) &&
!elemIsInParent(event.relatedTarget, parentElem)
) {
hideCallback();
}
}
(function() {
window.rootPath = getVar("root-path");
window.currentCrate = getVar("current-crate");
}());
function setMobileTopbar() {
// FIXME: It would be nicer to generate this text content directly in HTML,
// but with the current code it's hard to get the right information in the right place.
const mobileLocationTitle = document.querySelector(".mobile-topbar h2");
const locationTitle = document.querySelector(".sidebar h2.location");
if (mobileLocationTitle && locationTitle) {
mobileLocationTitle.innerHTML = locationTitle.innerHTML;
}
}
// Gets the human-readable string for the virtual-key code of the
// given KeyboardEvent, ev.
//
// This function is meant as a polyfill for KeyboardEvent#key,
// since it is not supported in IE 11 or Chrome for Android. We also test for
// KeyboardEvent#keyCode because the handleShortcut handler is
// also registered for the keydown event, because Blink doesn't fire
// keypress on hitting the Escape key.
//
// So I guess you could say things are getting pretty interoperable.
function getVirtualKey(ev) {
if ("key" in ev && typeof ev.key !== "undefined") {
return ev.key;
}
const c = ev.charCode || ev.keyCode;
if (c === 27) {
return "Escape";
}
return String.fromCharCode(c);
}
const MAIN_ID = "main-content";
const SETTINGS_BUTTON_ID = "settings-menu";
const ALTERNATIVE_DISPLAY_ID = "alternative-display";
const NOT_DISPLAYED_ID = "not-displayed";
const HELP_BUTTON_ID = "help-button";
function getSettingsButton() {
return document.getElementById(SETTINGS_BUTTON_ID);
}
function getHelpButton() {
return document.getElementById(HELP_BUTTON_ID);
}
// Returns the current URL without any query parameter or hash.
function getNakedUrl() {
return window.location.href.split("?")[0].split("#")[0];
}
/**
* This function inserts `newNode` after `referenceNode`. It doesn't work if `referenceNode`
* doesn't have a parent node.
*
* @param {HTMLElement} newNode
* @param {HTMLElement} referenceNode
*/
function insertAfter(newNode, referenceNode) {
referenceNode.parentNode.insertBefore(newNode, referenceNode.nextSibling);
}
/**
* This function creates a new `<section>` with the given `id` and `classes` if it doesn't already
* exist.
*
* More information about this in `switchDisplayedElement` documentation.
*
* @param {string} id
* @param {string} classes
*/
function getOrCreateSection(id, classes) {
let el = document.getElementById(id);
if (!el) {
el = document.createElement("section");
el.id = id;
el.className = classes;
insertAfter(el, document.getElementById(MAIN_ID));
}
return el;
}
/**
* Returns the `<section>` element which contains the displayed element.
*
* @return {HTMLElement}
*/
function getAlternativeDisplayElem() {
return getOrCreateSection(ALTERNATIVE_DISPLAY_ID, "content hidden");
}
/**
* Returns the `<section>` element which contains the not-displayed elements.
*
* @return {HTMLElement}
*/
function getNotDisplayedElem() {
return getOrCreateSection(NOT_DISPLAYED_ID, "hidden");
}
/**
* To nicely switch between displayed "extra" elements (such as search results or settings menu)
* and to alternate between the displayed and not displayed elements, we hold them in two different
* `<section>` elements. They work in pair: one holds the hidden elements while the other
* contains the displayed element (there can be only one at the same time!). So basically, we switch
* elements between the two `<section>` elements.
*
* @param {HTMLElement} elemToDisplay
*/
function switchDisplayedElement(elemToDisplay) {
const el = getAlternativeDisplayElem();
if (el.children.length > 0) {
getNotDisplayedElem().appendChild(el.firstElementChild);
}
if (elemToDisplay === null) {
addClass(el, "hidden");
showMain();
return;
}
el.appendChild(elemToDisplay);
hideMain();
removeClass(el, "hidden");
}
function browserSupportsHistoryApi() {
return window.history && typeof window.history.pushState === "function";
}
// eslint-disable-next-line no-unused-vars
function loadCss(cssUrl) {
const link = document.createElement("link");
link.href = cssUrl;
link.type = "text/css";
link.rel = "stylesheet";
document.getElementsByTagName("head")[0].appendChild(link);
}
(function() {
const isHelpPage = window.location.pathname.endsWith("/help.html");
function loadScript(url) {
const script = document.createElement("script");
script.src = url;
document.head.append(script);
}
getSettingsButton().onclick = event => {
if (event.ctrlKey || event.altKey || event.metaKey) {
return;
}
addClass(getSettingsButton(), "rotate");
event.preventDefault();
// Sending request for the CSS and the JS files at the same time so it will
// hopefully be loaded when the JS will generate the settings content.
loadCss(getVar("static-root-path") + getVar("settings-css"));
loadScript(getVar("static-root-path") + getVar("settings-js"));
};
window.searchState = {
loadingText: "Loading search results...",
input: document.getElementsByClassName("search-input")[0],
outputElement: () => {
let el = document.getElementById("search");
if (!el) {
el = document.createElement("section");
el.id = "search";
getNotDisplayedElem().appendChild(el);
}
return el;
},
title: document.title,
titleBeforeSearch: document.title,
timeout: null,
// On the search screen, so you remain on the last tab you opened.
//
// 0 for "In Names"
// 1 for "In Parameters"
// 2 for "In Return Types"
currentTab: 0,
// tab and back preserves the element that was focused.
focusedByTab: [null, null, null],
clearInputTimeout: () => {
if (searchState.timeout !== null) {
clearTimeout(searchState.timeout);
searchState.timeout = null;
}
},
isDisplayed: () => searchState.outputElement().parentElement.id === ALTERNATIVE_DISPLAY_ID,
// Sets the focus on the search bar at the top of the page
focus: () => {
searchState.input.focus();
},
// Removes the focus from the search bar.
defocus: () => {
searchState.input.blur();
},
showResults: search => {
if (search === null || typeof search === "undefined") {
search = searchState.outputElement();
}
switchDisplayedElement(search);
searchState.mouseMovedAfterSearch = false;
document.title = searchState.title;
},
hideResults: () => {
switchDisplayedElement(null);
document.title = searchState.titleBeforeSearch;
// We also remove the query parameter from the URL.
if (browserSupportsHistoryApi()) {
history.replaceState(null, window.currentCrate + " - Rust",
getNakedUrl() + window.location.hash);
}
},
getQueryStringParams: () => {
const params = {};
window.location.search.substring(1).split("&").
map(s => {
const pair = s.split("=");
params[decodeURIComponent(pair[0])] =
typeof pair[1] === "undefined" ? null : decodeURIComponent(pair[1]);
});
return params;
},
setup: () => {
const search_input = searchState.input;
if (!searchState.input) {
return;
}
let searchLoaded = false;
function loadSearch() {
if (!searchLoaded) {
searchLoaded = true;
loadScript(getVar("static-root-path") + getVar("search-js"));
loadScript(resourcePath("search-index", ".js"));
}
}
search_input.addEventListener("focus", () => {
search_input.origPlaceholder = search_input.placeholder;
search_input.placeholder = "Type your search here.";
loadSearch();
});
if (search_input.value !== "") {
loadSearch();
}
const params = searchState.getQueryStringParams();
if (params.search !== undefined) {
const search = searchState.outputElement();
search.innerHTML = "<h3 class=\"search-loading\">" +
searchState.loadingText + "</h3>";
searchState.showResults(search);
loadSearch();
}
},
};
function getPageId() {
if (window.location.hash) {
const tmp = window.location.hash.replace(/^#/, "");
if (tmp.length > 0) {
return tmp;
}
}
return null;
}
const toggleAllDocsId = "toggle-all-docs";
let savedHash = "";
function handleHashes(ev) {
if (ev !== null && searchState.isDisplayed() && ev.newURL) {
// This block occurs when clicking on an element in the navbar while
// in a search.
switchDisplayedElement(null);
const hash = ev.newURL.slice(ev.newURL.indexOf("#") + 1);
if (browserSupportsHistoryApi()) {
// `window.location.search`` contains all the query parameters, not just `search`.
history.replaceState(null, "",
getNakedUrl() + window.location.search + "#" + hash);
}
const elem = document.getElementById(hash);
if (elem) {
elem.scrollIntoView();
}
}
// This part is used in case an element is not visible.
if (savedHash !== window.location.hash) {
savedHash = window.location.hash;
if (savedHash.length === 0) {
return;
}
expandSection(savedHash.slice(1)); // we remove the '#'
}
}
function onHashChange(ev) {
// If we're in mobile mode, we should hide the sidebar in any case.
hideSidebar();
handleHashes(ev);
}
function openParentDetails(elem) {
while (elem) {
if (elem.tagName === "DETAILS") {
elem.open = true;
}
elem = elem.parentNode;
}
}
function expandSection(id) {
openParentDetails(document.getElementById(id));
}
function handleEscape(ev) {
searchState.clearInputTimeout();
switchDisplayedElement(null);
if (browserSupportsHistoryApi()) {
history.replaceState(null, window.currentCrate + " - Rust",
getNakedUrl() + window.location.hash);
}
ev.preventDefault();
searchState.defocus();
window.hidePopoverMenus();
}
function handleShortcut(ev) {
// Don't interfere with browser shortcuts
const disableShortcuts = getSettingValue("disable-shortcuts") === "true";
if (ev.ctrlKey || ev.altKey || ev.metaKey || disableShortcuts) {
return;
}
if (document.activeElement.tagName === "INPUT" &&
document.activeElement.type !== "checkbox") {
switch (getVirtualKey(ev)) {
case "Escape":
handleEscape(ev);
break;
}
} else {
switch (getVirtualKey(ev)) {
case "Escape":
handleEscape(ev);
break;
case "s":
case "S":
ev.preventDefault();
searchState.focus();
break;
case "+":
ev.preventDefault();
expandAllDocs();
break;
case "-":
ev.preventDefault();
collapseAllDocs();
break;
case "?":
showHelp();
break;
default:
break;
}
}
}
document.addEventListener("keypress", handleShortcut);
document.addEventListener("keydown", handleShortcut);
function addSidebarItems() {
if (!window.SIDEBAR_ITEMS) {
return;
}
const sidebar = document.getElementsByClassName("sidebar-elems")[0];
/**
* Append to the sidebar a "block" of links - a heading along with a list (`<ul>`) of items.
*
* @param {string} shortty - A short type name, like "primitive", "mod", or "macro"
* @param {string} id - The HTML id of the corresponding section on the module page.
* @param {string} longty - A long, capitalized, plural name, like "Primitive Types",
* "Modules", or "Macros".
*/
function block(shortty, id, longty) {
const filtered = window.SIDEBAR_ITEMS[shortty];
if (!filtered) {
return;
}
const h3 = document.createElement("h3");
h3.innerHTML = `<a href="index.html#${id}">${longty}</a>`;
const ul = document.createElement("ul");
ul.className = "block " + shortty;
for (const item of filtered) {
const name = item[0];
const desc = item[1]; // can be null
let path;
if (shortty === "mod") {
path = name + "/index.html";
} else {
path = shortty + "." + name + ".html";
}
const current_page = document.location.href.split("/").pop();
const link = document.createElement("a");
link.href = path;
link.title = desc;
if (path === current_page) {
link.className = "current";
}
link.textContent = name;
const li = document.createElement("li");
li.appendChild(link);
ul.appendChild(li);
}
sidebar.appendChild(h3);
sidebar.appendChild(ul);
}
if (sidebar) {
block("primitive", "primitives", "Primitive Types");
block("mod", "modules", "Modules");
block("macro", "macros", "Macros");
block("struct", "structs", "Structs");
block("enum", "enums", "Enums");
block("union", "unions", "Unions");
block("constant", "constants", "Constants");
block("static", "static", "Statics");
block("trait", "traits", "Traits");
block("fn", "functions", "Functions");
block("type", "types", "Type Definitions");
block("foreigntype", "foreign-types", "Foreign Types");
block("keyword", "keywords", "Keywords");
block("traitalias", "trait-aliases", "Trait Aliases");
}
}
window.register_implementors = imp => {
const implementors = document.getElementById("implementors-list");
const synthetic_implementors = document.getElementById("synthetic-implementors-list");
const inlined_types = new Set();
const TEXT_IDX = 0;
const SYNTHETIC_IDX = 1;
const TYPES_IDX = 2;
if (synthetic_implementors) {
// This `inlined_types` variable is used to avoid having the same implementation
// showing up twice. For example "String" in the "Sync" doc page.
//
// By the way, this is only used by and useful for traits implemented automatically
// (like "Send" and "Sync").
onEachLazy(synthetic_implementors.getElementsByClassName("impl"), el => {
const aliases = el.getAttribute("data-aliases");
if (!aliases) {
return;
}
aliases.split(",").forEach(alias => {
inlined_types.add(alias);
});
});
}
let currentNbImpls = implementors.getElementsByClassName("impl").length;
const traitName = document.querySelector("h1.fqn > .trait").textContent;
const baseIdName = "impl-" + traitName + "-";
const libs = Object.getOwnPropertyNames(imp);
// We don't want to include impls from this JS file, when the HTML already has them.
// The current crate should always be ignored. Other crates that should also be
// ignored are included in the attribute `data-ignore-extern-crates`.
const script = document
.querySelector("script[data-ignore-extern-crates]");
const ignoreExternCrates = script ? script.getAttribute("data-ignore-extern-crates") : "";
for (const lib of libs) {
if (lib === window.currentCrate || ignoreExternCrates.indexOf(lib) !== -1) {
continue;
}
const structs = imp[lib];
struct_loop:
for (const struct of structs) {
const list = struct[SYNTHETIC_IDX] ? synthetic_implementors : implementors;
// The types list is only used for synthetic impls.
// If this changes, `main.js` and `write_shared.rs` both need changed.
if (struct[SYNTHETIC_IDX]) {
for (const struct_type of struct[TYPES_IDX]) {
if (inlined_types.has(struct_type)) {
continue struct_loop;
}
inlined_types.add(struct_type);
}
}
const code = document.createElement("h3");
code.innerHTML = struct[TEXT_IDX];
addClass(code, "code-header");
onEachLazy(code.getElementsByTagName("a"), elem => {
const href = elem.getAttribute("href");
if (href && href.indexOf("http") !== 0) {
elem.setAttribute("href", window.rootPath + href);
}
});
const currentId = baseIdName + currentNbImpls;
const anchor = document.createElement("a");
anchor.href = "#" + currentId;
addClass(anchor, "anchor");
const display = document.createElement("div");
display.id = currentId;
addClass(display, "impl");
display.appendChild(anchor);
display.appendChild(code);
list.appendChild(display);
currentNbImpls += 1;
}
}
};
if (window.pending_implementors) {
window.register_implementors(window.pending_implementors);
}
function addSidebarCrates() {
if (!window.ALL_CRATES) {
return;
}
const sidebarElems = document.getElementsByClassName("sidebar-elems")[0];
if (!sidebarElems) {
return;
}
// Draw a convenient sidebar of known crates if we have a listing
const h3 = document.createElement("h3");
h3.innerHTML = "Crates";
const ul = document.createElement("ul");
ul.className = "block crate";
for (const crate of window.ALL_CRATES) {
const link = document.createElement("a");
link.href = window.rootPath + crate + "/index.html";
if (window.rootPath !== "./" && crate === window.currentCrate) {
link.className = "current";
}
link.textContent = crate;
const li = document.createElement("li");
li.appendChild(link);
ul.appendChild(li);
}
sidebarElems.appendChild(h3);
sidebarElems.appendChild(ul);
}
function expandAllDocs() {
const innerToggle = document.getElementById(toggleAllDocsId);
removeClass(innerToggle, "will-expand");
onEachLazy(document.getElementsByClassName("rustdoc-toggle"), e => {
if (!hasClass(e, "type-contents-toggle")) {
e.open = true;
}
});
innerToggle.title = "collapse all docs";
innerToggle.children[0].innerText = "\u2212"; // "\u2212" is "" minus sign
}
function collapseAllDocs() {
const innerToggle = document.getElementById(toggleAllDocsId);
addClass(innerToggle, "will-expand");
onEachLazy(document.getElementsByClassName("rustdoc-toggle"), e => {
if (e.parentNode.id !== "implementations-list" ||
(!hasClass(e, "implementors-toggle") &&
!hasClass(e, "type-contents-toggle"))
) {
e.open = false;
}
});
innerToggle.title = "expand all docs";
innerToggle.children[0].innerText = "+";
}
function toggleAllDocs() {
const innerToggle = document.getElementById(toggleAllDocsId);
if (!innerToggle) {
return;
}
if (hasClass(innerToggle, "will-expand")) {
expandAllDocs();
} else {
collapseAllDocs();
}
}
(function() {
const toggles = document.getElementById(toggleAllDocsId);
if (toggles) {
toggles.onclick = toggleAllDocs;
}
const hideMethodDocs = getSettingValue("auto-hide-method-docs") === "true";
const hideImplementations = getSettingValue("auto-hide-trait-implementations") === "true";
const hideLargeItemContents = getSettingValue("auto-hide-large-items") !== "false";
function setImplementorsTogglesOpen(id, open) {
const list = document.getElementById(id);
if (list !== null) {
onEachLazy(list.getElementsByClassName("implementors-toggle"), e => {
e.open = open;
});
}
}
if (hideImplementations) {
setImplementorsTogglesOpen("trait-implementations-list", false);
setImplementorsTogglesOpen("blanket-implementations-list", false);
}
onEachLazy(document.getElementsByClassName("rustdoc-toggle"), e => {
if (!hideLargeItemContents && hasClass(e, "type-contents-toggle")) {
e.open = true;
}
if (hideMethodDocs && hasClass(e, "method-toggle")) {
e.open = false;
}
});
const pageId = getPageId();
if (pageId !== null) {
expandSection(pageId);
}
}());
window.rustdoc_add_line_numbers_to_examples = () => {
onEachLazy(document.getElementsByClassName("rust-example-rendered"), x => {
const parent = x.parentNode;
const line_numbers = parent.querySelectorAll(".example-line-numbers");
if (line_numbers.length > 0) {
return;
}
const count = x.textContent.split("\n").length;
const elems = [];
for (let i = 0; i < count; ++i) {
elems.push(i + 1);
}
const node = document.createElement("pre");
addClass(node, "example-line-numbers");
node.innerHTML = elems.join("\n");
parent.insertBefore(node, x);
});
};
window.rustdoc_remove_line_numbers_from_examples = () => {
onEachLazy(document.getElementsByClassName("rust-example-rendered"), x => {
const parent = x.parentNode;
const line_numbers = parent.querySelectorAll(".example-line-numbers");
for (const node of line_numbers) {
parent.removeChild(node);
}
});
};
(function() {
// To avoid checking on "rustdoc-line-numbers" value on every loop...
if (getSettingValue("line-numbers") === "true") {
window.rustdoc_add_line_numbers_to_examples();
}
}());
let oldSidebarScrollPosition = null;
// Scroll locking used both here and in source-script.js
window.rustdocMobileScrollLock = function() {
const mobile_topbar = document.querySelector(".mobile-topbar");
if (window.innerWidth <= window.RUSTDOC_MOBILE_BREAKPOINT) {
// This is to keep the scroll position on mobile.
oldSidebarScrollPosition = window.scrollY;
document.body.style.width = `${document.body.offsetWidth}px`;
document.body.style.position = "fixed";
document.body.style.top = `-${oldSidebarScrollPosition}px`;
if (mobile_topbar) {
mobile_topbar.style.top = `${oldSidebarScrollPosition}px`;
mobile_topbar.style.position = "relative";
}
} else {
oldSidebarScrollPosition = null;
}
};
window.rustdocMobileScrollUnlock = function() {
const mobile_topbar = document.querySelector(".mobile-topbar");
if (oldSidebarScrollPosition !== null) {
// This is to keep the scroll position on mobile.
document.body.style.width = "";
document.body.style.position = "";
document.body.style.top = "";
if (mobile_topbar) {
mobile_topbar.style.top = "";
mobile_topbar.style.position = "";
}
// The scroll position is lost when resetting the style, hence why we store it in
// `oldSidebarScrollPosition`.
window.scrollTo(0, oldSidebarScrollPosition);
oldSidebarScrollPosition = null;
}
};
function showSidebar() {
window.rustdocMobileScrollLock();
const sidebar = document.getElementsByClassName("sidebar")[0];
addClass(sidebar, "shown");
}
function hideSidebar() {
window.rustdocMobileScrollUnlock();
const sidebar = document.getElementsByClassName("sidebar")[0];
removeClass(sidebar, "shown");
}
window.addEventListener("resize", () => {
if (window.innerWidth > window.RUSTDOC_MOBILE_BREAKPOINT &&
oldSidebarScrollPosition !== null) {
// If the user opens the sidebar in "mobile" mode, and then grows the browser window,
// we need to switch away from mobile mode and make the main content area scrollable.
hideSidebar();
}
if (window.CURRENT_NOTABLE_ELEMENT) {
// As a workaround to the behavior of `contains: layout` used in doc togglers, the
// notable traits popup is positioned using javascript.
//
// This means when the window is resized, we need to redo the layout.
const base = window.CURRENT_NOTABLE_ELEMENT.NOTABLE_BASE;
const force_visible = base.NOTABLE_FORCE_VISIBLE;
hideNotable();
if (force_visible) {
showNotable(base);
base.NOTABLE_FORCE_VISIBLE = true;
}
}
});
function handleClick(id, f) {
const elem = document.getElementById(id);
if (elem) {
elem.addEventListener("click", f);
}
}
handleClick(MAIN_ID, () => {
hideSidebar();
});
onEachLazy(document.getElementsByTagName("a"), el => {
// For clicks on internal links (<A> tags with a hash property), we expand the section we're
// jumping to *before* jumping there. We can't do this in onHashChange, because it changes
// the height of the document so we wind up scrolled to the wrong place.
if (el.hash) {
el.addEventListener("click", () => {
expandSection(el.hash.slice(1));
hideSidebar();
});
}
});
onEachLazy(document.querySelectorAll(".rustdoc-toggle > summary:not(.hideme)"), el => {
el.addEventListener("click", e => {
if (e.target.tagName !== "SUMMARY" && e.target.tagName !== "A") {
e.preventDefault();
}
});
});
function showNotable(e) {
if (!window.NOTABLE_TRAITS) {
const data = document.getElementById("notable-traits-data");
if (data) {
window.NOTABLE_TRAITS = JSON.parse(data.innerText);
} else {
throw new Error("showNotable() called on page without any notable traits!");
}
}
if (window.CURRENT_NOTABLE_ELEMENT && window.CURRENT_NOTABLE_ELEMENT.NOTABLE_BASE === e) {
// Make this function idempotent.
return;
}
hideNotable();
const ty = e.getAttribute("data-ty");
const tooltip = e.getElementsByClassName("notable-traits-tooltip")[0];
const wrapper = document.createElement("div");
wrapper.innerHTML = "<div class=\"docblock\">" + window.NOTABLE_TRAITS[ty] + "</div>";
wrapper.className = "notable-traits-tooltiptext";
tooltip.appendChild(wrapper);
const pos = wrapper.getBoundingClientRect();
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