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354 lines
13 KiB
354 lines
13 KiB
/*
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* Copyright (c) 2015, 2020, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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var noResult = {l: "No results found"};
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var loading = {l: "Loading search index..."};
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var catModules = "Modules";
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var catPackages = "Packages";
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var catTypes = "Types";
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var catMembers = "Members";
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var catSearchTags = "Search Tags";
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var highlight = "<span class=\"result-highlight\">$&</span>";
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var searchPattern = "";
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var fallbackPattern = "";
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var RANKING_THRESHOLD = 2;
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var NO_MATCH = 0xffff;
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var MIN_RESULTS = 3;
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var MAX_RESULTS = 500;
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var UNNAMED = "<Unnamed>";
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function escapeHtml(str) {
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return str.replace(/</g, "<").replace(/>/g, ">");
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}
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function getHighlightedText(item, matcher, fallbackMatcher) {
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var escapedItem = escapeHtml(item);
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var highlighted = escapedItem.replace(matcher, highlight);
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if (highlighted === escapedItem) {
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highlighted = escapedItem.replace(fallbackMatcher, highlight)
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}
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return highlighted;
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}
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function getURLPrefix(ui) {
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var urlPrefix="";
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var slash = "/";
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if (ui.item.category === catModules) {
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return ui.item.l + slash;
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} else if (ui.item.category === catPackages && ui.item.m) {
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return ui.item.m + slash;
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} else if (ui.item.category === catTypes || ui.item.category === catMembers) {
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if (ui.item.m) {
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urlPrefix = ui.item.m + slash;
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} else {
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$.each(packageSearchIndex, function(index, item) {
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if (item.m && ui.item.p === item.l) {
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urlPrefix = item.m + slash;
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}
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});
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}
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}
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return urlPrefix;
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}
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function createSearchPattern(term) {
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var pattern = "";
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var isWordToken = false;
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term.replace(/,\s*/g, ", ").trim().split(/\s+/).forEach(function(w, index) {
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if (index > 0) {
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// whitespace between identifiers is significant
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pattern += (isWordToken && /^\w/.test(w)) ? "\\s+" : "\\s*";
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}
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var tokens = w.split(/(?=[A-Z,.()<>[\/])/);
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for (var i = 0; i < tokens.length; i++) {
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var s = tokens[i];
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if (s === "") {
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continue;
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}
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pattern += $.ui.autocomplete.escapeRegex(s);
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isWordToken = /\w$/.test(s);
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if (isWordToken) {
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pattern += "([a-z0-9_$<>\\[\\]]*?)";
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}
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}
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});
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return pattern;
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}
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function createMatcher(pattern, flags) {
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var isCamelCase = /[A-Z]/.test(pattern);
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return new RegExp(pattern, flags + (isCamelCase ? "" : "i"));
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}
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var watermark = 'Search';
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$(function() {
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var search = $("#search-input");
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var reset = $("#reset-button");
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search.val('');
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search.prop("disabled", false);
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reset.prop("disabled", false);
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search.val(watermark).addClass('watermark');
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search.blur(function() {
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if ($(this).val().length === 0) {
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$(this).val(watermark).addClass('watermark');
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}
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});
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search.on('click keydown paste', function() {
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if ($(this).val() === watermark) {
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$(this).val('').removeClass('watermark');
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}
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});
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reset.click(function() {
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search.val('').focus();
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});
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search.focus()[0].setSelectionRange(0, 0);
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});
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$.widget("custom.catcomplete", $.ui.autocomplete, {
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_create: function() {
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this._super();
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this.widget().menu("option", "items", "> :not(.ui-autocomplete-category)");
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},
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_renderMenu: function(ul, items) {
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var rMenu = this;
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var currentCategory = "";
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rMenu.menu.bindings = $();
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$.each(items, function(index, item) {
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var li;
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if (item.category && item.category !== currentCategory) {
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ul.append("<li class=\"ui-autocomplete-category\">" + item.category + "</li>");
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currentCategory = item.category;
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}
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li = rMenu._renderItemData(ul, item);
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if (item.category) {
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li.attr("aria-label", item.category + " : " + item.l);
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li.attr("class", "result-item");
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} else {
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li.attr("aria-label", item.l);
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li.attr("class", "result-item");
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}
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});
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},
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_renderItem: function(ul, item) {
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var label = "";
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var matcher = createMatcher(escapeHtml(searchPattern), "g");
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var fallbackMatcher = new RegExp(fallbackPattern, "gi")
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if (item.category === catModules) {
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label = getHighlightedText(item.l, matcher, fallbackMatcher);
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} else if (item.category === catPackages) {
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label = getHighlightedText(item.l, matcher, fallbackMatcher);
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} else if (item.category === catTypes) {
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label = (item.p && item.p !== UNNAMED)
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? getHighlightedText(item.p + "." + item.l, matcher, fallbackMatcher)
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: getHighlightedText(item.l, matcher, fallbackMatcher);
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} else if (item.category === catMembers) {
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label = (item.p && item.p !== UNNAMED)
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? getHighlightedText(item.p + "." + item.c + "." + item.l, matcher, fallbackMatcher)
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: getHighlightedText(item.c + "." + item.l, matcher, fallbackMatcher);
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} else if (item.category === catSearchTags) {
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label = getHighlightedText(item.l, matcher, fallbackMatcher);
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} else {
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label = item.l;
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}
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var li = $("<li/>").appendTo(ul);
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var div = $("<div/>").appendTo(li);
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if (item.category === catSearchTags && item.h) {
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if (item.d) {
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div.html(label + "<span class=\"search-tag-holder-result\"> (" + item.h + ")</span><br><span class=\"search-tag-desc-result\">"
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+ item.d + "</span><br>");
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} else {
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div.html(label + "<span class=\"search-tag-holder-result\"> (" + item.h + ")</span>");
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}
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} else {
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if (item.m) {
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div.html(item.m + "/" + label);
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} else {
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div.html(label);
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}
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}
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return li;
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}
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});
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function rankMatch(match, category) {
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if (!match) {
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return NO_MATCH;
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}
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var index = match.index;
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var input = match.input;
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var leftBoundaryMatch = 2;
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var periferalMatch = 0;
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// make sure match is anchored on a left word boundary
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if (index === 0 || /\W/.test(input[index - 1]) || "_" === input[index]) {
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leftBoundaryMatch = 0;
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} else if ("_" === input[index - 1] || (input[index] === input[index].toUpperCase() && !/^[A-Z0-9_$]+$/.test(input))) {
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leftBoundaryMatch = 1;
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}
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var matchEnd = index + match[0].length;
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var leftParen = input.indexOf("(");
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var endOfName = leftParen > -1 ? leftParen : input.length;
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// exclude peripheral matches
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if (category !== catModules && category !== catSearchTags) {
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var delim = category === catPackages ? "/" : ".";
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if (leftParen > -1 && leftParen < index) {
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periferalMatch += 2;
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} else if (input.lastIndexOf(delim, endOfName) >= matchEnd) {
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periferalMatch += 2;
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}
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}
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var delta = match[0].length === endOfName ? 0 : 1; // rank full match higher than partial match
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for (var i = 1; i < match.length; i++) {
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// lower ranking if parts of the name are missing
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if (match[i])
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delta += match[i].length;
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}
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if (category === catTypes) {
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// lower ranking if a type name contains unmatched camel-case parts
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if (/[A-Z]/.test(input.substring(matchEnd)))
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delta += 5;
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if (/[A-Z]/.test(input.substring(0, index)))
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delta += 5;
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}
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return leftBoundaryMatch + periferalMatch + (delta / 200);
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}
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function doSearch(request, response) {
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var result = [];
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searchPattern = createSearchPattern(request.term);
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fallbackPattern = createSearchPattern(request.term.toLowerCase());
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if (searchPattern === "") {
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return this.close();
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}
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var camelCaseMatcher = createMatcher(searchPattern, "");
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var fallbackMatcher = new RegExp(fallbackPattern, "i");
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function searchIndexWithMatcher(indexArray, matcher, category, nameFunc) {
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if (indexArray) {
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var newResults = [];
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$.each(indexArray, function (i, item) {
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item.category = category;
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var ranking = rankMatch(matcher.exec(nameFunc(item)), category);
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if (ranking < RANKING_THRESHOLD) {
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newResults.push({ranking: ranking, item: item});
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}
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return newResults.length <= MAX_RESULTS;
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});
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return newResults.sort(function(e1, e2) {
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return e1.ranking - e2.ranking;
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}).map(function(e) {
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return e.item;
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});
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}
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return [];
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}
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function searchIndex(indexArray, category, nameFunc) {
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var primaryResults = searchIndexWithMatcher(indexArray, camelCaseMatcher, category, nameFunc);
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result = result.concat(primaryResults);
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if (primaryResults.length <= MIN_RESULTS && !camelCaseMatcher.ignoreCase) {
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var secondaryResults = searchIndexWithMatcher(indexArray, fallbackMatcher, category, nameFunc);
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result = result.concat(secondaryResults.filter(function (item) {
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return primaryResults.indexOf(item) === -1;
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}));
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}
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}
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searchIndex(moduleSearchIndex, catModules, function(item) { return item.l; });
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searchIndex(packageSearchIndex, catPackages, function(item) {
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return (item.m && request.term.indexOf("/") > -1)
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? (item.m + "/" + item.l) : item.l;
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});
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searchIndex(typeSearchIndex, catTypes, function(item) {
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return request.term.indexOf(".") > -1 ? item.p + "." + item.l : item.l;
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});
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searchIndex(memberSearchIndex, catMembers, function(item) {
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return request.term.indexOf(".") > -1
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? item.p + "." + item.c + "." + item.l : item.l;
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});
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searchIndex(tagSearchIndex, catSearchTags, function(item) { return item.l; });
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if (!indexFilesLoaded()) {
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updateSearchResults = function() {
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doSearch(request, response);
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}
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result.unshift(loading);
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} else {
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updateSearchResults = function() {};
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}
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response(result);
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}
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$(function() {
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$("#search-input").catcomplete({
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minLength: 1,
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delay: 300,
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source: doSearch,
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response: function(event, ui) {
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if (!ui.content.length) {
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ui.content.push(noResult);
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} else {
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$("#search-input").empty();
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}
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},
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autoFocus: true,
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focus: function(event, ui) {
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return false;
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},
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position: {
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collision: "flip"
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},
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select: function(event, ui) {
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if (ui.item.category) {
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var url = getURLPrefix(ui);
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if (ui.item.category === catModules) {
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url += "module-summary.html";
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} else if (ui.item.category === catPackages) {
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if (ui.item.u) {
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url = ui.item.u;
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} else {
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url += ui.item.l.replace(/\./g, '/') + "/package-summary.html";
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}
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} else if (ui.item.category === catTypes) {
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if (ui.item.u) {
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url = ui.item.u;
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} else if (ui.item.p === UNNAMED) {
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url += ui.item.l + ".html";
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} else {
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url += ui.item.p.replace(/\./g, '/') + "/" + ui.item.l + ".html";
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}
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} else if (ui.item.category === catMembers) {
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if (ui.item.p === UNNAMED) {
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url += ui.item.c + ".html" + "#";
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} else {
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url += ui.item.p.replace(/\./g, '/') + "/" + ui.item.c + ".html" + "#";
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}
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if (ui.item.u) {
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url += ui.item.u;
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} else {
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url += ui.item.l;
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}
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} else if (ui.item.category === catSearchTags) {
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url += ui.item.u;
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}
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if (top !== window) {
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parent.classFrame.location = pathtoroot + url;
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} else {
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window.location.href = pathtoroot + url;
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}
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$("#search-input").focus();
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}
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}
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});
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});
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