| /*! |
| * Copyright 2014 The Rust Project Developers. See the COPYRIGHT |
| * file at the top-level directory of this distribution and at |
| * http://rust-lang.org/COPYRIGHT. |
| * |
| * Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| * http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| * <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| * option. This file may not be copied, modified, or distributed |
| * except according to those terms. |
| */ |
| |
| /*jslint browser: true, es5: true */ |
| /*globals $: true, rootPath: true */ |
| |
| (function() { |
| "use strict"; |
| |
| // This mapping table should match the discriminants of |
| // `rustdoc::html::item_type::ItemType` type in Rust. |
| var itemTypes = ["mod", |
| "externcrate", |
| "import", |
| "struct", |
| "enum", |
| "fn", |
| "type", |
| "static", |
| "trait", |
| "impl", |
| "tymethod", |
| "method", |
| "structfield", |
| "variant", |
| "macro", |
| "primitive", |
| "associatedtype", |
| "constant", |
| "associatedconstant", |
| "union"]; |
| |
| function hasClass(elem, className) { |
| if (elem && className && elem.className) { |
| var elemClass = elem.className; |
| var start = elemClass.indexOf(className); |
| if (start == -1) { |
| return false; |
| } else if (elemClass.length == className.length) { |
| return true; |
| } else { |
| if (start > 0 && elemClass[start - 1] != ' ') { |
| return false; |
| } |
| var end = start + className.length; |
| if (end < elemClass.length && elemClass[end] != ' ') { |
| return false; |
| } |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| function addClass(elem, className) { |
| if (elem && className && !hasClass(elem, className)) { |
| if (elem.className && elem.className.length > 0) { |
| elem.className += ' ' + className; |
| } else { |
| elem.className = className; |
| } |
| } |
| } |
| |
| function removeClass(elem, className) { |
| if (elem && className && elem.className) { |
| elem.className = (" " + elem.className + " ").replace(" " + className + " ", " ") |
| .trim(); |
| } |
| } |
| |
| function onEach(arr, func) { |
| if (arr && arr.length > 0 && func) { |
| for (var i = 0; i < arr.length; i++) { |
| func(arr[i]); |
| } |
| } |
| } |
| |
| function isHidden(elem) { |
| return (elem.offsetParent === null) |
| } |
| |
| // used for special search precedence |
| var TY_PRIMITIVE = itemTypes.indexOf("primitive"); |
| |
| onEach(document.getElementsByClassName('js-only'), function(e) { |
| removeClass(e, 'js-only'); |
| }); |
| |
| function getQueryStringParams() { |
| var params = {}; |
| window.location.search.substring(1).split("&"). |
| map(function(s) { |
| var pair = s.split("="); |
| params[decodeURIComponent(pair[0])] = |
| typeof pair[1] === "undefined" ? |
| null : decodeURIComponent(pair[1]); |
| }); |
| return params; |
| } |
| |
| function browserSupportsHistoryApi() { |
| return document.location.protocol != "file:" && |
| window.history && typeof window.history.pushState === "function"; |
| } |
| |
| function highlightSourceLines(ev) { |
| var i, from, to, match = window.location.hash.match(/^#?(\d+)(?:-(\d+))?$/); |
| if (match) { |
| from = parseInt(match[1], 10); |
| to = Math.min(50000, parseInt(match[2] || match[1], 10)); |
| from = Math.min(from, to); |
| var elem = document.getElementById(from); |
| if (!elem) { |
| return; |
| } |
| if (ev === null) { |
| var x = document.getElementById(from); |
| if (x) { |
| x.scrollIntoView(); |
| } |
| }; |
| onEach(document.getElementsByClassName('line-numbers'), function(e) { |
| onEach(e.getElementsByTagName('span'), function(i_e) { |
| removeClass(i_e, 'line-highlighted'); |
| }); |
| }) |
| for (i = from; i <= to; ++i) { |
| addClass(document.getElementById(i), 'line-highlighted'); |
| } |
| } |
| } |
| highlightSourceLines(null); |
| window.onhashchange = highlightSourceLines; |
| |
| // 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 Trident. 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; |
| |
| var c = ev.charCode || ev.keyCode; |
| if (c == 27) |
| return "Escape"; |
| return String.fromCharCode(c); |
| } |
| |
| function handleShortcut(ev) { |
| if (document.activeElement.tagName === "INPUT") |
| return; |
| |
| // Don't interfere with browser shortcuts |
| if (ev.ctrlKey || ev.altKey || ev.metaKey) |
| return; |
| |
| var help = document.getElementById("help"); |
| switch (getVirtualKey(ev)) { |
| case "Escape": |
| var search = document.getElementById("search"); |
| if (!hasClass(help, "hidden")) { |
| ev.preventDefault(); |
| addClass(help, "hidden"); |
| removeClass(document.body, "blur"); |
| } else if (!hasClass(search, "hidden")) { |
| ev.preventDefault(); |
| addClass(search, "hidden"); |
| removeClass(document.getElementById("main"), "hidden"); |
| } |
| break; |
| |
| case "s": |
| case "S": |
| ev.preventDefault(); |
| focusSearchBar(); |
| break; |
| |
| case "+": |
| ev.preventDefault(); |
| toggleAllDocs(); |
| break; |
| |
| case "?": |
| if (ev.shiftKey && hasClass(help, "hidden")) { |
| ev.preventDefault(); |
| removeClass(help, "hidden"); |
| addClass(document.body, "blur"); |
| } |
| break; |
| } |
| } |
| |
| document.onkeypress = handleShortcut; |
| document.onkeydown = handleShortcut; |
| document.onclick = function(ev) { |
| if (hasClass(ev.target, 'collapse-toggle')) { |
| collapseDocs(ev.target); |
| } else if (hasClass(ev.target.parentNode, 'collapse-toggle')) { |
| collapseDocs(ev.target.parentNode); |
| } else if (ev.target.tagName === 'SPAN' && hasClass(ev.target.parentNode, 'line-numbers')) { |
| var prev_id = 0; |
| |
| var set_fragment = function (name) { |
| if (browserSupportsHistoryApi()) { |
| history.replaceState(null, null, '#' + name); |
| window.hashchange(); |
| } else { |
| location.replace('#' + name); |
| } |
| }; |
| |
| var cur_id = parseInt(ev.target.id, 10); |
| |
| if (ev.shiftKey && prev_id) { |
| if (prev_id > cur_id) { |
| var tmp = prev_id; |
| prev_id = cur_id; |
| cur_id = tmp; |
| } |
| |
| set_fragment(prev_id + '-' + cur_id); |
| } else { |
| prev_id = cur_id; |
| |
| set_fragment(cur_id); |
| } |
| } else if (!hasClass(document.getElementById("help"), "hidden")) { |
| addClass(document.getElementById("help"), "hidden"); |
| removeClass(document.body, "blur"); |
| } |
| }; |
| |
| var x = document.getElementsByClassName('version-selector'); |
| if (x.length > 0) { |
| x[0].onchange = function() { |
| var i, match, |
| url = document.location.href, |
| stripped = '', |
| len = rootPath.match(/\.\.\//g).length + 1; |
| |
| for (i = 0; i < len; ++i) { |
| match = url.match(/\/[^\/]*$/); |
| if (i < len - 1) { |
| stripped = match[0] + stripped; |
| } |
| url = url.substring(0, url.length - match[0].length); |
| } |
| |
| url += '/' + document.getElementsByClassName('version-selector')[0].value + stripped; |
| |
| document.location.href = url; |
| }; |
| } |
| |
| /** |
| * A function to compute the Levenshtein distance between two strings |
| * Licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported |
| * Full License can be found at http://creativecommons.org/licenses/by-sa/3.0/legalcode |
| * This code is an unmodified version of the code written by Marco de Wit |
| * and was found at http://stackoverflow.com/a/18514751/745719 |
| */ |
| var levenshtein = (function() { |
| var row2 = []; |
| return function(s1, s2) { |
| if (s1 === s2) { |
| return 0; |
| } |
| var s1_len = s1.length, s2_len = s2.length; |
| if (s1_len && s2_len) { |
| var i1 = 0, i2 = 0, a, b, c, c2, row = row2; |
| while (i1 < s1_len) { |
| row[i1] = ++i1; |
| } |
| while (i2 < s2_len) { |
| c2 = s2.charCodeAt(i2); |
| a = i2; |
| ++i2; |
| b = i2; |
| for (i1 = 0; i1 < s1_len; ++i1) { |
| c = a + (s1.charCodeAt(i1) !== c2 ? 1 : 0); |
| a = row[i1]; |
| b = b < a ? (b < c ? b + 1 : c) : (a < c ? a + 1 : c); |
| row[i1] = b; |
| } |
| } |
| return b; |
| } |
| return s1_len + s2_len; |
| }; |
| })(); |
| |
| function initSearch(rawSearchIndex) { |
| var currentResults, index, searchIndex; |
| var MAX_LEV_DISTANCE = 3; |
| var params = getQueryStringParams(); |
| |
| // Populate search bar with query string search term when provided, |
| // but only if the input bar is empty. This avoid the obnoxious issue |
| // where you start trying to do a search, and the index loads, and |
| // suddenly your search is gone! |
| if (document.getElementsByClassName("search-input")[0].value === "") { |
| document.getElementsByClassName("search-input")[0].value = params.search || ''; |
| } |
| |
| /** |
| * Executes the query and builds an index of results |
| * @param {[Object]} query [The user query] |
| * @param {[type]} max [The maximum results returned] |
| * @param {[type]} searchWords [The list of search words to query |
| * against] |
| * @return {[type]} [A search index of results] |
| */ |
| function execQuery(query, max, searchWords) { |
| var valLower = query.query.toLowerCase(), |
| val = valLower, |
| typeFilter = itemTypeFromName(query.type), |
| results = [], |
| split = valLower.split("::"); |
| |
| // remove empty keywords |
| for (var j = 0; j < split.length; ++j) { |
| split[j].toLowerCase(); |
| if (split[j] === "") { |
| split.splice(j, 1); |
| } |
| } |
| |
| function typePassesFilter(filter, type) { |
| // No filter |
| if (filter < 0) return true; |
| |
| // Exact match |
| if (filter === type) return true; |
| |
| // Match related items |
| var name = itemTypes[type]; |
| switch (itemTypes[filter]) { |
| case "constant": |
| return (name == "associatedconstant"); |
| case "fn": |
| return (name == "method" || name == "tymethod"); |
| case "type": |
| return (name == "primitive"); |
| } |
| |
| // No match |
| return false; |
| } |
| |
| // quoted values mean literal search |
| var nSearchWords = searchWords.length; |
| if ((val.charAt(0) === "\"" || val.charAt(0) === "'") && |
| val.charAt(val.length - 1) === val.charAt(0)) |
| { |
| val = val.substr(1, val.length - 2); |
| for (var i = 0; i < nSearchWords; ++i) { |
| if (searchWords[i] === val) { |
| // filter type: ... queries |
| if (typePassesFilter(typeFilter, searchIndex[i].ty)) { |
| results.push({id: i, index: -1}); |
| } |
| } |
| if (results.length === max) { |
| break; |
| } |
| } |
| // searching by type |
| } else if (val.search("->") > -1) { |
| var trimmer = function (s) { return s.trim(); }; |
| var parts = val.split("->").map(trimmer); |
| var input = parts[0]; |
| // sort inputs so that order does not matter |
| var inputs = input.split(",").map(trimmer).sort().toString(); |
| var output = parts[1]; |
| |
| for (var i = 0; i < nSearchWords; ++i) { |
| var type = searchIndex[i].type; |
| if (!type) { |
| continue; |
| } |
| |
| // sort index inputs so that order does not matter |
| var typeInputs = type.inputs.map(function (input) { |
| return input.name; |
| }).sort(); |
| |
| // allow searching for void (no output) functions as well |
| var typeOutput = type.output ? type.output.name : ""; |
| if ((inputs === "*" || inputs === typeInputs.toString()) && |
| (output === "*" || output == typeOutput)) { |
| results.push({id: i, index: -1, dontValidate: true}); |
| } |
| } |
| } else { |
| // gather matching search results up to a certain maximum |
| val = val.replace(/\_/g, ""); |
| for (var i = 0; i < split.length; ++i) { |
| for (var j = 0; j < nSearchWords; ++j) { |
| var lev_distance; |
| if (searchWords[j].indexOf(split[i]) > -1 || |
| searchWords[j].indexOf(val) > -1 || |
| searchWords[j].replace(/_/g, "").indexOf(val) > -1) |
| { |
| // filter type: ... queries |
| if (typePassesFilter(typeFilter, searchIndex[j].ty)) { |
| results.push({ |
| id: j, |
| index: searchWords[j].replace(/_/g, "").indexOf(val), |
| lev: 0, |
| }); |
| } |
| } else if ( |
| (lev_distance = levenshtein(searchWords[j], val)) <= |
| MAX_LEV_DISTANCE) { |
| if (typePassesFilter(typeFilter, searchIndex[j].ty)) { |
| results.push({ |
| id: j, |
| index: 0, |
| // we want lev results to go lower than others |
| lev: lev_distance, |
| }); |
| } |
| } |
| if (results.length === max) { |
| break; |
| } |
| } |
| } |
| } |
| |
| var nresults = results.length; |
| for (var i = 0; i < nresults; ++i) { |
| results[i].word = searchWords[results[i].id]; |
| results[i].item = searchIndex[results[i].id] || {}; |
| } |
| // if there are no results then return to default and fail |
| if (results.length === 0) { |
| return []; |
| } |
| |
| results.sort(function sortResults(aaa, bbb) { |
| var a, b; |
| |
| // Sort by non levenshtein results and then levenshtein results by the distance |
| // (less changes required to match means higher rankings) |
| a = (aaa.lev); |
| b = (bbb.lev); |
| if (a !== b) { return a - b; } |
| |
| // sort by crate (non-current crate goes later) |
| a = (aaa.item.crate !== window.currentCrate); |
| b = (bbb.item.crate !== window.currentCrate); |
| if (a !== b) { return a - b; } |
| |
| // sort by exact match (mismatch goes later) |
| a = (aaa.word !== valLower); |
| b = (bbb.word !== valLower); |
| if (a !== b) { return a - b; } |
| |
| // sort by item name length (longer goes later) |
| a = aaa.word.length; |
| b = bbb.word.length; |
| if (a !== b) { return a - b; } |
| |
| // sort by item name (lexicographically larger goes later) |
| a = aaa.word; |
| b = bbb.word; |
| if (a !== b) { return (a > b ? +1 : -1); } |
| |
| // sort by index of keyword in item name (no literal occurrence goes later) |
| a = (aaa.index < 0); |
| b = (bbb.index < 0); |
| if (a !== b) { return a - b; } |
| // (later literal occurrence, if any, goes later) |
| a = aaa.index; |
| b = bbb.index; |
| if (a !== b) { return a - b; } |
| |
| // special precedence for primitive pages |
| if ((aaa.item.ty === TY_PRIMITIVE) && (bbb.item.ty !== TY_PRIMITIVE)) { |
| return -1; |
| } |
| if ((bbb.item.ty === TY_PRIMITIVE) && (aaa.item.ty !== TY_PRIMITIVE)) { |
| return 1; |
| } |
| |
| // sort by description (no description goes later) |
| a = (aaa.item.desc === ''); |
| b = (bbb.item.desc === ''); |
| if (a !== b) { return a - b; } |
| |
| // sort by type (later occurrence in `itemTypes` goes later) |
| a = aaa.item.ty; |
| b = bbb.item.ty; |
| if (a !== b) { return a - b; } |
| |
| // sort by path (lexicographically larger goes later) |
| a = aaa.item.path; |
| b = bbb.item.path; |
| if (a !== b) { return (a > b ? +1 : -1); } |
| |
| // que sera, sera |
| return 0; |
| }); |
| |
| // remove duplicates, according to the data provided |
| for (var i = results.length - 1; i > 0; i -= 1) { |
| if (results[i].word === results[i - 1].word && |
| results[i].item.ty === results[i - 1].item.ty && |
| results[i].item.path === results[i - 1].item.path && |
| (results[i].item.parent || {}).name === (results[i - 1].item.parent || {}).name) |
| { |
| results[i].id = -1; |
| } |
| } |
| for (var i = 0; i < results.length; ++i) { |
| var result = results[i], |
| name = result.item.name.toLowerCase(), |
| path = result.item.path.toLowerCase(), |
| parent = result.item.parent; |
| |
| // this validation does not make sense when searching by types |
| if (result.dontValidate) { |
| continue; |
| } |
| |
| var valid = validateResult(name, path, split, parent); |
| if (!valid) { |
| result.id = -1; |
| } |
| } |
| return results; |
| } |
| |
| /** |
| * Validate performs the following boolean logic. For example: |
| * "File::open" will give IF A PARENT EXISTS => ("file" && "open") |
| * exists in (name || path || parent) OR => ("file" && "open") exists in |
| * (name || path ) |
| * |
| * This could be written functionally, but I wanted to minimise |
| * functions on stack. |
| * |
| * @param {[string]} name [The name of the result] |
| * @param {[string]} path [The path of the result] |
| * @param {[string]} keys [The keys to be used (["file", "open"])] |
| * @param {[object]} parent [The parent of the result] |
| * @return {[boolean]} [Whether the result is valid or not] |
| */ |
| function validateResult(name, path, keys, parent) { |
| for (var i = 0; i < keys.length; ++i) { |
| // each check is for validation so we negate the conditions and invalidate |
| if (!( |
| // check for an exact name match |
| name.toLowerCase().indexOf(keys[i]) > -1 || |
| // then an exact path match |
| path.toLowerCase().indexOf(keys[i]) > -1 || |
| // next if there is a parent, check for exact parent match |
| (parent !== undefined && |
| parent.name.toLowerCase().indexOf(keys[i]) > -1) || |
| // lastly check to see if the name was a levenshtein match |
| levenshtein(name.toLowerCase(), keys[i]) <= |
| MAX_LEV_DISTANCE)) { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| function getQuery() { |
| var matches, type, query, raw = |
| document.getElementsByClassName('search-input')[0].value; |
| query = raw; |
| |
| matches = query.match(/^(fn|mod|struct|enum|trait|type|const|macro)\s*:\s*/i); |
| if (matches) { |
| type = matches[1].replace(/^const$/, 'constant'); |
| query = query.substring(matches[0].length); |
| } |
| |
| return { |
| raw: raw, |
| query: query, |
| type: type, |
| id: query + type |
| }; |
| } |
| |
| function initSearchNav() { |
| var hoverTimeout; |
| |
| var click_func = function(e) { |
| var el = e.target; |
| // to retrieve the real "owner" of the event. |
| while (el.tagName !== 'TR') { |
| el = el.parentNode; |
| } |
| var dst = e.target.getElementsByTagName('a'); |
| if (dst.length < 1) { |
| return; |
| } |
| dst = dst[0]; |
| if (window.location.pathname === dst.pathname) { |
| addClass(document.getElementById('search'), 'hidden'); |
| removeClass(document.getElementById('main'), 'hidden'); |
| document.location.href = dst.href; |
| } |
| }; |
| var mouseover_func = function(e) { |
| var el = e.target; |
| // to retrieve the real "owner" of the event. |
| while (el.tagName !== 'TR') { |
| el = el.parentNode; |
| } |
| clearTimeout(hoverTimeout); |
| hoverTimeout = setTimeout(function() { |
| onEach(document.getElementsByClassName('search-results'), function(e) { |
| onEach(e.getElementsByClassName('result'), function(i_e) { |
| removeClass(i_e, 'highlighted'); |
| }); |
| }); |
| addClass(el, 'highlighted'); |
| }, 20); |
| }; |
| onEach(document.getElementsByClassName('search-results'), function(e) { |
| onEach(e.getElementsByClassName('result'), function(i_e) { |
| i_e.onclick = click_func; |
| i_e.onmouseover = mouseover_func; |
| }); |
| }); |
| |
| var search_input = document.getElementsByClassName('search-input')[0]; |
| search_input.onkeydown = null; |
| search_input.onkeydown = function(e) { |
| var actives = []; |
| onEach(document.getElementsByClassName('search-results'), function(e) { |
| onEach(document.getElementsByClassName('highlighted'), function(e) { |
| actives.push(e); |
| }); |
| }); |
| |
| if (e.which === 38) { // up |
| if (!actives.length || !actives[0].previousElementSibling) { |
| return; |
| } |
| |
| addClass(actives[0].previousElementSibling, 'highlighted'); |
| removeClass(actives[0], 'highlighted'); |
| } else if (e.which === 40) { // down |
| if (!actives.length) { |
| var results = document.getElementsByClassName('search-results'); |
| if (results.length > 0) { |
| var res = results[0].getElementsByClassName('result'); |
| if (res.length > 0) { |
| addClass(res[0], 'highlighted'); |
| } |
| } |
| } else if (actives[0].nextElementSibling) { |
| addClass(actives[0].nextElementSibling, 'highlighted'); |
| removeClass(actives[0], 'highlighted'); |
| } |
| } else if (e.which === 13) { // return |
| if (actives.length) { |
| document.location.href = actives[0].getElementsByTagName('a')[0].href; |
| } |
| } else if (actives.length > 0) { |
| removeClass(actives[0], 'highlighted'); |
| } |
| }; |
| } |
| |
| function escape(content) { |
| var h1 = document.createElement('h1'); |
| h1.textContent = content; |
| return h1.innerHTML; |
| } |
| |
| function showResults(results) { |
| var output, shown, query = getQuery(); |
| |
| currentResults = query.id; |
| output = '<h1>Results for ' + escape(query.query) + |
| (query.type ? ' (type: ' + escape(query.type) + ')' : '') + '</h1>'; |
| output += '<table class="search-results">'; |
| |
| if (results.length > 0) { |
| shown = []; |
| |
| results.forEach(function(item) { |
| var name, type, href, displayPath; |
| |
| if (shown.indexOf(item) !== -1) { |
| return; |
| } |
| |
| shown.push(item); |
| name = item.name; |
| type = itemTypes[item.ty]; |
| |
| if (type === 'mod') { |
| displayPath = item.path + '::'; |
| href = rootPath + item.path.replace(/::/g, '/') + '/' + |
| name + '/index.html'; |
| } else if (type === "primitive") { |
| displayPath = ""; |
| href = rootPath + item.path.replace(/::/g, '/') + |
| '/' + type + '.' + name + '.html'; |
| } else if (type === "externcrate") { |
| displayPath = ""; |
| href = rootPath + name + '/index.html'; |
| } else if (item.parent !== undefined) { |
| var myparent = item.parent; |
| var anchor = '#' + type + '.' + name; |
| var parentType = itemTypes[myparent.ty]; |
| if (parentType === "primitive") { |
| displayPath = myparent.name + '::'; |
| } else { |
| displayPath = item.path + '::' + myparent.name + '::'; |
| } |
| href = rootPath + item.path.replace(/::/g, '/') + |
| '/' + parentType + |
| '.' + myparent.name + |
| '.html' + anchor; |
| } else { |
| displayPath = item.path + '::'; |
| href = rootPath + item.path.replace(/::/g, '/') + |
| '/' + type + '.' + name + '.html'; |
| } |
| |
| output += '<tr class="' + type + ' result"><td>' + |
| '<a href="' + href + '">' + |
| displayPath + '<span class="' + type + '">' + |
| name + '</span></a></td><td>' + |
| '<a href="' + href + '">' + |
| '<span class="desc">' + escape(item.desc) + |
| ' </span></a></td></tr>'; |
| }); |
| } else { |
| output += 'No results :( <a href="https://duckduckgo.com/?q=' + |
| encodeURIComponent('rust ' + query.query) + |
| '">Try on DuckDuckGo?</a>'; |
| } |
| |
| output += "</p>"; |
| addClass(document.getElementById('main'), 'hidden'); |
| var search = document.getElementById('search'); |
| removeClass(search, 'hidden'); |
| search.innerHTML = output; |
| var tds = search.getElementsByTagName('td'); |
| var td_width = 0; |
| if (tds.length > 0) { |
| td_width = tds[0].offsetWidth; |
| } |
| var width = search.offsetWidth - 40 - td_width; |
| onEach(search.getElementsByClassName('desc'), function(e) { |
| e.style.width = width + 'px'; |
| }); |
| initSearchNav(); |
| } |
| |
| function search(e) { |
| var query, |
| filterdata = [], |
| obj, i, len, |
| results = [], |
| maxResults = 200, |
| resultIndex; |
| var params = getQueryStringParams(); |
| |
| query = getQuery(); |
| if (e) { |
| e.preventDefault(); |
| } |
| |
| if (!query.query || query.id === currentResults) { |
| return; |
| } |
| |
| // Update document title to maintain a meaningful browser history |
| document.title = "Results for " + query.query + " - Rust"; |
| |
| // Because searching is incremental by character, only the most |
| // recent search query is added to the browser history. |
| if (browserSupportsHistoryApi()) { |
| if (!history.state && !params.search) { |
| history.pushState(query, "", "?search=" + encodeURIComponent(query.raw)); |
| } else { |
| history.replaceState(query, "", "?search=" + encodeURIComponent(query.raw)); |
| } |
| } |
| |
| resultIndex = execQuery(query, 20000, index); |
| len = resultIndex.length; |
| for (i = 0; i < len; ++i) { |
| if (resultIndex[i].id > -1) { |
| obj = searchIndex[resultIndex[i].id]; |
| filterdata.push([obj.name, obj.ty, obj.path, obj.desc]); |
| results.push(obj); |
| } |
| if (results.length >= maxResults) { |
| break; |
| } |
| } |
| |
| showResults(results); |
| } |
| |
| function itemTypeFromName(typename) { |
| for (var i = 0; i < itemTypes.length; ++i) { |
| if (itemTypes[i] === typename) { return i; } |
| } |
| return -1; |
| } |
| |
| function buildIndex(rawSearchIndex) { |
| searchIndex = []; |
| var searchWords = []; |
| for (var crate in rawSearchIndex) { |
| if (!rawSearchIndex.hasOwnProperty(crate)) { continue; } |
| |
| searchWords.push(crate); |
| searchIndex.push({ |
| crate: crate, |
| ty: 1, // == ExternCrate |
| name: crate, |
| path: "", |
| desc: rawSearchIndex[crate].doc, |
| type: null, |
| }); |
| |
| // an array of [(Number) item type, |
| // (String) name, |
| // (String) full path or empty string for previous path, |
| // (String) description, |
| // (Number | null) the parent path index to `paths`] |
| // (Object | null) the type of the function (if any) |
| var items = rawSearchIndex[crate].items; |
| // an array of [(Number) item type, |
| // (String) name] |
| var paths = rawSearchIndex[crate].paths; |
| |
| // convert `paths` into an object form |
| var len = paths.length; |
| for (var i = 0; i < len; ++i) { |
| paths[i] = {ty: paths[i][0], name: paths[i][1]}; |
| } |
| |
| // convert `items` into an object form, and construct word indices. |
| // |
| // before any analysis is performed lets gather the search terms to |
| // search against apart from the rest of the data. This is a quick |
| // operation that is cached for the life of the page state so that |
| // all other search operations have access to this cached data for |
| // faster analysis operations |
| var len = items.length; |
| var lastPath = ""; |
| for (var i = 0; i < len; ++i) { |
| var rawRow = items[i]; |
| var row = {crate: crate, ty: rawRow[0], name: rawRow[1], |
| path: rawRow[2] || lastPath, desc: rawRow[3], |
| parent: paths[rawRow[4]], type: rawRow[5]}; |
| searchIndex.push(row); |
| if (typeof row.name === "string") { |
| var word = row.name.toLowerCase(); |
| searchWords.push(word); |
| } else { |
| searchWords.push(""); |
| } |
| lastPath = row.path; |
| } |
| } |
| return searchWords; |
| } |
| |
| function startSearch() { |
| var searchTimeout; |
| var callback = function() { |
| var search_input = document.getElementsByClassName('search-input'); |
| if (search_input.length < 1) { return; } |
| search_input = search_input[0]; |
| clearTimeout(searchTimeout); |
| if (search_input.value.length === 0) { |
| if (browserSupportsHistoryApi()) { |
| history.replaceState("", "std - Rust", "?search="); |
| } |
| var main = document.getElementById('main'); |
| if (hasClass(main, 'content')) { |
| removeClass(main, 'hidden'); |
| } |
| var search_c = document.getElementById('search'); |
| if (hasClass(search_c, 'content')) { |
| addClass(search_c, 'hidden'); |
| } |
| } else { |
| searchTimeout = setTimeout(search, 500); |
| } |
| }; |
| var search_input = document.getElementsByClassName("search-input")[0]; |
| search_input.onkeyup = callback; |
| search_input.oninput = callback; |
| document.getElementsByClassName("search-form")[0].onsubmit = function(e){ |
| e.preventDefault(); |
| clearTimeout(searchTimeout); |
| search(); |
| }; |
| search_input.onchange = function(e) { |
| // Do NOT e.preventDefault() here. It will prevent pasting. |
| clearTimeout(searchTimeout); |
| // zero-timeout necessary here because at the time of event handler execution the |
| // pasted content is not in the input field yet. Shouldn’t make any difference for |
| // change, though. |
| setTimeout(search, 0); |
| }; |
| search_input.onpaste = search_input.onchange; |
| |
| // Push and pop states are used to add search results to the browser |
| // history. |
| if (browserSupportsHistoryApi()) { |
| // Store the previous <title> so we can revert back to it later. |
| var previousTitle = document.title; |
| |
| window.onpopstate = function(e) { |
| var params = getQueryStringParams(); |
| // When browsing back from search results the main page |
| // visibility must be reset. |
| if (!params.search) { |
| var main = document.getElementById('main'); |
| if (hasClass(main, 'content')) { |
| removeClass(main, 'hidden'); |
| } |
| var search_c = document.getElementById('search'); |
| if (hasClass(search_c, 'content')) { |
| addClass(search_c, 'hidden'); |
| } |
| } |
| // Revert to the previous title manually since the History |
| // API ignores the title parameter. |
| document.title = previousTitle; |
| // When browsing forward to search results the previous |
| // search will be repeated, so the currentResults are |
| // cleared to ensure the search is successful. |
| currentResults = null; |
| // Synchronize search bar with query string state and |
| // perform the search. This will empty the bar if there's |
| // nothing there, which lets you really go back to a |
| // previous state with nothing in the bar. |
| if (params.search) { |
| document.getElementsByClassName('search-input')[0].value = params.search; |
| } else { |
| document.getElementsByClassName('search-input')[0].value = ''; |
| } |
| // Some browsers fire 'onpopstate' for every page load |
| // (Chrome), while others fire the event only when actually |
| // popping a state (Firefox), which is why search() is |
| // called both here and at the end of the startSearch() |
| // function. |
| search(); |
| }; |
| } |
| search(); |
| } |
| |
| index = buildIndex(rawSearchIndex); |
| startSearch(); |
| |
| // Draw a convenient sidebar of known crates if we have a listing |
| if (rootPath === '../') { |
| var sidebar = document.getElementsByClassName('sidebar')[0]; |
| var div = document.createElement('div'); |
| div.className = 'block crate'; |
| div.innerHTML = '<h3>Crates</h3>'; |
| var ul = document.createElement('ul'); |
| div.appendChild(ul); |
| |
| var crates = []; |
| for (var crate in rawSearchIndex) { |
| if (!rawSearchIndex.hasOwnProperty(crate)) { continue; } |
| crates.push(crate); |
| } |
| crates.sort(); |
| for (var i = 0; i < crates.length; ++i) { |
| var klass = 'crate'; |
| if (crates[i] === window.currentCrate) { |
| klass += ' current'; |
| } |
| var link = document.createElement('a'); |
| link.href = '../' + crates[i] + '/index.html'; |
| link.title = rawSearchIndex[crates[i]].doc; |
| link.className = klass; |
| link.textContent = crates[i]; |
| |
| var li = document.createElement('li'); |
| li.appendChild(link); |
| ul.appendChild(li); |
| } |
| sidebar.appendChild(div); |
| } |
| } |
| |
| window.initSearch = initSearch; |
| |
| // delayed sidebar rendering. |
| function initSidebarItems(items) { |
| var sidebar = document.getElementsByClassName('sidebar')[0]; |
| var current = window.sidebarCurrent; |
| |
| function block(shortty, longty) { |
| var filtered = items[shortty]; |
| if (!filtered) { return; } |
| |
| var div = document.createElement('div'); |
| div.className = 'block ' + shortty; |
| var h3 = document.createElement('h3'); |
| h3.textContent = longty; |
| div.appendChild(h3); |
| var ul = document.createElement('ul'); |
| |
| for (var i = 0; i < filtered.length; ++i) { |
| var item = filtered[i]; |
| var name = item[0]; |
| var desc = item[1]; // can be null |
| |
| var klass = shortty; |
| if (name === current.name && shortty === current.ty) { |
| klass += ' current'; |
| } |
| var path; |
| if (shortty === 'mod') { |
| path = name + '/index.html'; |
| } else { |
| path = shortty + '.' + name + '.html'; |
| } |
| var link = document.createElement('a'); |
| link.href = current.relpath + path; |
| link.title = desc; |
| link.className = klass; |
| link.textContent = name; |
| var li = document.createElement('li'); |
| li.appendChild(link); |
| ul.appendChild(li); |
| } |
| div.appendChild(ul); |
| sidebar.appendChild(div); |
| } |
| |
| block("primitive", "Primitive Types"); |
| block("mod", "Modules"); |
| block("macro", "Macros"); |
| block("struct", "Structs"); |
| block("enum", "Enums"); |
| block("union", "Unions"); |
| block("constant", "Constants"); |
| block("static", "Statics"); |
| block("trait", "Traits"); |
| block("fn", "Functions"); |
| block("type", "Type Definitions"); |
| } |
| |
| window.initSidebarItems = initSidebarItems; |
| |
| window.register_implementors = function(imp) { |
| var list = document.getElementById('implementors-list'); |
| var libs = Object.getOwnPropertyNames(imp); |
| for (var i = 0; i < libs.length; ++i) { |
| if (libs[i] === currentCrate) { continue; } |
| var structs = imp[libs[i]]; |
| for (var j = 0; j < structs.length; ++j) { |
| var code = document.createElement('code'); |
| code.innerHTML = structs[j]; |
| |
| var x = code.getElementsByTagName('a'); |
| for (var k = 0; k < x.length; k++) { |
| var href = x[k].getAttribute('href'); |
| if (href && href.indexOf('http') !== 0) { |
| x[k].setAttribute('href', rootPath + href); |
| } |
| } |
| var li = document.createElement('li'); |
| li.appendChild(code); |
| list.appendChild(li); |
| } |
| } |
| }; |
| if (window.pending_implementors) { |
| window.register_implementors(window.pending_implementors); |
| } |
| |
| function labelForToggleButton(sectionIsCollapsed) { |
| if (sectionIsCollapsed) { |
| // button will expand the section |
| return "+"; |
| } |
| // button will collapse the section |
| // note that this text is also set in the HTML template in render.rs |
| return "\u2212"; // "\u2212" is '−' minus sign |
| } |
| |
| function onEveryMatchingChild(elem, className, func) { |
| if (elem && className && func) { |
| for (var i = 0; i < elem.childNodes.length; i++) { |
| if (hasClass(elem.childNodes[i], className)) { |
| func(elem.childNodes[i]); |
| } else { |
| onEveryMatchingChild(elem.childNodes[i], className, func); |
| } |
| } |
| } |
| } |
| |
| function toggleAllDocs() { |
| var toggle = document.getElementById("toggle-all-docs"); |
| if (hasClass(toggle, "will-expand")) { |
| removeClass(toggle, "will-expand"); |
| onEveryMatchingChild(toggle, "inner", function(e) { |
| e.innerHTML = labelForToggleButton(false); |
| }); |
| toggle.title = "collapse all docs"; |
| onEach(document.getElementsByClassName("docblock"), function(e) { |
| e.style.display = 'block'; |
| }); |
| onEach(document.getElementsByClassName("toggle-label"), function(e) { |
| e.style.display = 'none'; |
| }); |
| onEach(document.getElementsByClassName("toggle-wrapper"), function(e) { |
| removeClass(e, "collapsed"); |
| }); |
| onEach(document.getElementsByClassName("collapse-toggle"), function(e) { |
| onEveryMatchingChild(e, "inner", function(i_e) { |
| i_e.innerHTML = labelForToggleButton(false); |
| }); |
| }); |
| } else { |
| addClass(toggle, "will-expand"); |
| onEveryMatchingChild(toggle, "inner", function(e) { |
| e.innerHTML = labelForToggleButton(true); |
| }); |
| toggle.title = "expand all docs"; |
| onEach(document.getElementsByClassName("docblock"), function(e) { |
| e.style.display = 'none'; |
| }); |
| onEach(document.getElementsByClassName("toggle-label"), function(e) { |
| e.style.display = 'inline-block'; |
| }); |
| onEach(document.getElementsByClassName("toggle-wrapper"), function(e) { |
| addClass(e, "collapsed"); |
| }); |
| onEach(document.getElementsByClassName("collapse-toggle"), function(e) { |
| onEveryMatchingChild(e, "inner", function(i_e) { |
| i_e.innerHTML = labelForToggleButton(true); |
| }); |
| }); |
| } |
| } |
| |
| function collapseDocs(toggle) { |
| if (!toggle || !toggle.parentNode) { |
| return; |
| } |
| var relatedDoc = toggle.parentNode.nextElementSibling; |
| if (hasClass(relatedDoc, "stability")) { |
| relatedDoc = relatedDoc.nextElementSibling; |
| } |
| if (hasClass(relatedDoc, "docblock")) { |
| if (!isHidden(relatedDoc)) { |
| relatedDoc.style.display = 'none'; |
| onEach(toggle.childNodes, function(e) { |
| if (hasClass(e, 'toggle-label')) { |
| e.style.display = 'inline-block'; |
| } |
| if (hasClass(e, 'inner')) { |
| e.innerHTML = labelForToggleButton(true); |
| } |
| }); |
| addClass(toggle.parentNode, 'collapsed'); |
| } else { |
| relatedDoc.style.display = 'block'; |
| removeClass(toggle.parentNode, 'collapsed'); |
| onEach(toggle.childNodes, function(e) { |
| if (hasClass(e, 'toggle-label')) { |
| e.style.display = 'none'; |
| } |
| if (hasClass(e, 'inner')) { |
| e.innerHTML = labelForToggleButton(false); |
| } |
| }); |
| } |
| } |
| } |
| |
| var x = document.getElementById('toggle-all-docs'); |
| if (x) { |
| x.onclick = toggleAllDocs; |
| } |
| |
| function insertAfter(newNode, referenceNode) { |
| referenceNode.parentNode.insertBefore(newNode, referenceNode.nextSibling); |
| } |
| |
| var toggle = document.createElement('a'); |
| toggle.href = 'javascript:void(0)'; |
| toggle.className = 'collapse-toggle'; |
| toggle.innerHTML = "[<span class='inner'>"+labelForToggleButton(false)+"</span>]"; |
| |
| var func = function(e) { |
| var next = e.nextElementSibling; |
| if (!next) { |
| return; |
| } |
| if (hasClass(next, 'docblock') || |
| (hasClass(next, 'stability') && |
| hasClass(next.nextElementSibling, 'docblock'))) { |
| insertAfter(toggle.cloneNode(true), e.childNodes[e.childNodes.length - 1]); |
| } |
| } |
| onEach(document.getElementsByClassName('method'), func); |
| onEach(document.getElementsByClassName('impl-items'), function(e) { |
| onEach(e.getElementsByClassName('associatedconstant'), func); |
| }); |
| |
| function createToggle() { |
| var span = document.createElement('span'); |
| span.className = 'toggle-label'; |
| span.style.display = 'none'; |
| span.innerHTML = ' Expand description'; |
| |
| var mainToggle = toggle.cloneNode(true); |
| mainToggle.appendChild(span); |
| |
| var wrapper = document.createElement('div'); |
| wrapper.className = 'toggle-wrapper'; |
| wrapper.appendChild(mainToggle); |
| return wrapper; |
| } |
| |
| onEach(document.getElementById('main').getElementsByClassName('docblock'), function(e) { |
| if (e.parentNode.id === "main") { |
| e.parentNode.insertBefore(createToggle(), e); |
| } |
| }); |
| |
| onEach(document.getElementsByClassName('docblock'), function(e) { |
| if (hasClass(e, 'autohide')) { |
| var wrap = e.previousElementSibling; |
| if (wrap && hasClass(wrap, 'toggle-wrapper')) { |
| var toggle = wrap.childNodes[0]; |
| if (e.childNodes[0].tagName === 'H3') { |
| onEach(toggle.getElementsByClassName('toggle-label'), function(i_e) { |
| i_e.innerHTML = " Show " + e.childNodes[0].innerHTML; |
| }); |
| } |
| e.style.display = 'none'; |
| addClass(wrap, 'collapsed'); |
| onEach(toggle.getElementsByClassName('inner'), function(e) { |
| e.innerHTML = labelForToggleButton(true); |
| }); |
| onEach(toggle.getElementsByClassName('toggle-label'), function(e) { |
| e.style.display = 'inline-block'; |
| }); |
| } |
| } |
| }) |
| |
| function createToggleWrapper() { |
| var span = document.createElement('span'); |
| span.className = 'toggle-label'; |
| span.style.display = 'none'; |
| span.innerHTML = ' Expand attributes'; |
| toggle.appendChild(span); |
| |
| var wrapper = document.createElement('div'); |
| wrapper.className = 'toggle-wrapper toggle-attributes'; |
| wrapper.appendChild(toggle); |
| return wrapper; |
| } |
| |
| onEach(document.getElementById('main').getElementsByTagName('pre'), function(e) { |
| onEach(e.getElementsByClassName('attributes'), function(i_e) { |
| i_e.parentNode.insertBefore(createToggleWrapper(), i_e); |
| collapseDocs(i_e.previousSibling.childNodes[0]); |
| }); |
| }); |
| }()); |
| |
| // Sets the focus on the search bar at the top of the page |
| function focusSearchBar() { |
| document.getElementsByClassName('search-input')[0].focus(); |
| } |
