/*! * # Semantic UI 1.11.4 - Search * http://github.com/semantic-org/semantic-ui/ * * * Copyright 2014 Contributors * Released under the MIT license * http://opensource.org/licenses/MIT * */ ;(function ($, window, document, undefined) { "use strict"; $.fn.search = function(parameters) { var $allModules = $(this), moduleSelector = $allModules.selector || '', time = new Date().getTime(), performance = [], query = arguments[0], methodInvoked = (typeof query == 'string'), queryArguments = [].slice.call(arguments, 1), returnedValue ; $(this) .each(function() { var settings = $.extend(true, {}, $.fn.search.settings, parameters), className = settings.className, metadata = settings.metadata, regExp = settings.regExp, selector = settings.selector, error = settings.error, namespace = settings.namespace, eventNamespace = '.' + namespace, moduleNamespace = namespace + '-module', $module = $(this), $prompt = $module.find(selector.prompt), $searchButton = $module.find(selector.searchButton), $results = $module.find(selector.results), $result = $module.find(selector.result), $category = $module.find(selector.category), element = this, instance = $module.data(moduleNamespace), module ; module = { initialize: function() { module.verbose('Initializing module'); var prompt = $prompt[0], inputEvent = (prompt !== undefined && prompt.oninput !== undefined) ? 'input' : (prompt !== undefined && prompt.onpropertychange !== undefined) ? 'propertychange' : 'keyup' ; if(settings.automatic) { $prompt .on(inputEvent + eventNamespace, module.throttle) .attr('autocomplete', 'off') ; } $prompt .on('focus' + eventNamespace, module.event.focus) .on('blur' + eventNamespace, module.event.blur) .on('keydown' + eventNamespace, module.handleKeyboard) ; $searchButton .on('click' + eventNamespace, module.query) ; $results .on('mousedown' + eventNamespace, module.event.result.mousedown) .on('mouseup' + eventNamespace, module.event.result.mouseup) .on('click' + eventNamespace, selector.result, module.event.result.click) ; module.instantiate(); }, instantiate: function() { module.verbose('Storing instance of module', module); instance = module; $module .data(moduleNamespace, module) ; }, destroy: function() { module.verbose('Destroying instance'); $module .removeData(moduleNamespace) ; $prompt .off(eventNamespace) ; $searchButton .off(eventNamespace) ; $results .off(eventNamespace) ; }, event: { focus: function() { module.set.focus(); clearTimeout(module.timer); module.throttle(); if( module.has.minimumCharacters() ) { module.showResults(); } }, blur: function(event) { var pageLostFocus = (document.activeElement === this) ; if(!pageLostFocus && !module.resultsClicked) { module.cancel.query(); module.remove.focus(); module.timer = setTimeout(module.hideResults, settings.hideDelay); } }, result: { mousedown: function() { module.resultsClicked = true; }, mouseup: function() { module.resultsClicked = false; }, click: function(event) { module.debug('Search result selected'); var $result = $(this), $title = $result.find(selector.title).eq(0), $link = $result.find('a[href]').eq(0), href = $link.attr('href') || false, target = $link.attr('target') || false, title = $title.html(), name = ($title.length > 0) ? $title.text() : false, results = module.get.results(), result = module.get.result(name, results), returnedValue ; if( $.isFunction(settings.onSelect) ) { if(settings.onSelect.call(element, result, results) === false) { module.debug('Custom onSelect callback cancelled default select action'); return; } } module.hideResults(); if(name) { module.set.value(name); } if(href) { module.verbose('Opening search link found in result', $link); if(target == '_blank' || event.ctrlKey) { window.open(href); } else { window.location.href = (href); } } } } }, handleKeyboard: function(event) { var // force selector refresh $result = $module.find(selector.result), $category = $module.find(selector.category), currentIndex = $result.index( $result.filter('.' + className.active) ), resultSize = $result.length, keyCode = event.which, keys = { backspace : 8, enter : 13, escape : 27, upArrow : 38, downArrow : 40 }, newIndex ; // search shortcuts if(keyCode == keys.escape) { module.verbose('Escape key pressed, blurring search field'); $prompt .trigger('blur') ; } if( module.is.visible() ) { if(keyCode == keys.enter) { module.verbose('Enter key pressed, selecting active result'); if( $result.filter('.' + className.active).length > 0 ) { module.event.result.click.call($result.filter('.' + className.active), event); event.preventDefault(); return false; } } else if(keyCode == keys.upArrow) { module.verbose('Up key pressed, changing active result'); newIndex = (currentIndex - 1 < 0) ? currentIndex : currentIndex - 1 ; $category .removeClass(className.active) ; $result .removeClass(className.active) .eq(newIndex) .addClass(className.active) .closest($category) .addClass(className.active) ; event.preventDefault(); } else if(keyCode == keys.downArrow) { module.verbose('Down key pressed, changing active result'); newIndex = (currentIndex + 1 >= resultSize) ? currentIndex : currentIndex + 1 ; $category .removeClass(className.active) ; $result .removeClass(className.active) .eq(newIndex) .addClass(className.active) .closest($category) .addClass(className.active) ; event.preventDefault(); } } else { // query shortcuts if(keyCode == keys.enter) { module.verbose('Enter key pressed, executing query'); module.query(); module.set.buttonPressed(); $prompt.one('keyup', module.remove.buttonFocus); } } }, setup: { api: function() { var apiSettings = { on : false, action : 'search', onFailure : module.error }, searchHTML ; module.verbose('First request, initializing API'); $module.api(apiSettings); } }, can: { useAPI: function() { return $.fn.api !== undefined; }, transition: function() { return settings.transition && $.fn.transition !== undefined && $module.transition('is supported'); } }, is: { empty: function() { return ($results.html() === ''); }, visible: function() { return ($results.filter(':visible').length > 0); }, focused: function() { return ($prompt.filter(':focus').length > 0); } }, get: { value: function() { return $prompt.val(); }, results: function() { var results = $module.data(metadata.results) ; return results; }, result: function(value, results) { var result = false ; value = value || module.get.value(); results = results || module.get.results(); if(settings.type === 'category') { module.debug('Finding result that matches', value); $.each(results, function(index, category) { if($.isArray(category.results)) { result = module.search.object(value, category.results)[0]; if(result && result.length > 0) { return true; } } }); } else { module.debug('Finding result in results object', value); result = module.search.object(value, results)[0]; } return result; }, }, set: { focus: function() { $module.addClass(className.focus); }, loading: function() { $module.addClass(className.loading); }, value: function(value) { module.verbose('Setting search input value', value); $prompt.val(value); module.query(); }, buttonPressed: function() { $searchButton.addClass(className.pressed); } }, remove: { loading: function() { $module.removeClass(className.loading); }, focus: function() { $module.removeClass(className.focus); }, buttonPressed: function() { $searchButton.removeClass(className.pressed); } }, query: function() { var searchTerm = module.get.value(), cache = module.read.cache(searchTerm) ; if(cache) { module.debug('Reading result for ' + searchTerm + ' from cache'); module.save.results(cache.results); module.addResults(cache.html); } else { module.debug('Querying for ' + searchTerm); if($.isPlainObject(settings.source) || $.isArray(settings.source)) { module.search.local(searchTerm); } else if( module.can.useAPI() ) { if(settings.apiSettings) { module.debug('Searching with specified API settings', settings.apiSettings); module.search.remote(searchTerm); } else if($.api.settings.api.search !== undefined) { module.debug('Searching with default search API endpoint'); module.search.remote(searchTerm); } else { module.error(error.noEndpoint); } } else { module.error(error.source); } settings.onSearchQuery.call(element, searchTerm); } }, search: { local: function(searchTerm) { var searchResults = module.search.object(searchTerm, settings.content), searchHTML ; module.set.loading(); module.save.results(searchResults); module.debug('Returned local search results', searchResults); searchHTML = module.generateResults({ results: searchResults }); module.remove.loading(); module.write.cache(searchTerm, { html : searchHTML, results : searchResults }); module.addResults(searchHTML); }, remote: function(searchTerm) { var apiSettings = { onSuccess : function(response) { module.parse.response.call(element, response, searchTerm); }, urlData: { query: searchTerm } } ; if( !$module.api('get request') ) { module.setup.api(); } $.extend(true, apiSettings, settings.apiSettings); module.debug('Executing search', apiSettings); module.cancel.query(); $module .api('setting', apiSettings) .api('query') ; }, object: function(searchTerm, source) { var results = [], fullTextResults = [], searchFields = $.isArray(settings.searchFields) ? settings.searchFields : [settings.searchFields], searchExp = searchTerm.replace(regExp.escape, '\\$&'), searchRegExp = new RegExp(regExp.exact + searchExp, 'i') ; source = source || settings.source; // exit conditions on no source if(source === undefined) { module.error(error.source); return []; } // iterate through search fields in array order $.each(searchFields, function(index, field) { $.each(source, function(label, content) { var fieldExists = (typeof content[field] == 'string'), notAlreadyResult = ($.inArray(content, results) == -1 && $.inArray(content, fullTextResults) == -1) ; if(fieldExists && notAlreadyResult) { if( content[field].match(searchRegExp) ) { results.push(content); } else if(settings.searchFullText && module.fuzzySearch(searchTerm, content[field]) ) { fullTextResults.push(content); } } }); }); return $.merge(results, fullTextResults); } }, fuzzySearch: function(query, term) { var termLength = term.length, queryLength = query.length ; query = query.toLowerCase(); term = term.toLowerCase(); if(queryLength > termLength) { return false; } if(queryLength === termLength) { return (query === term); } search: for (var characterIndex = 0, nextCharacterIndex = 0; characterIndex < queryLength; characterIndex++) { var queryCharacter = query.charCodeAt(characterIndex) ; while(nextCharacterIndex < termLength) { if(term.charCodeAt(nextCharacterIndex++) === queryCharacter) { continue search; } } return false; } return true; }, parse: { response: function(response, searchTerm) { var searchHTML = module.generateResults(response) ; module.verbose('Parsing server response', response); if(response !== undefined) { if(searchTerm !== undefined && response.results !== undefined) { module.write.cache(searchTerm, { html : searchHTML, results : response.results }); module.save.results(response.results); module.addResults(searchHTML); } } } }, throttle: function() { clearTimeout(module.timer); if(module.has.minimumCharacters()) { module.timer = setTimeout(module.query, settings.searchDelay); } else { module.hideResults(); } }, cancel: { query: function() { if( module.can.useAPI() ) { $module.api('abort'); } } }, has: { minimumCharacters: function() { var searchTerm = module.get.value(), numCharacters = searchTerm.length ; return (numCharacters >= settings.minCharacters); } }, read: { cache: function(name) { var cache = $module.data(metadata.cache) ; if(settings.cache) { module.verbose('Checking cache for generated html for query', name); return (typeof cache == 'object') && (cache[name] !== undefined) ? cache[name] : false ; } return false; } }, save: { results: function(results) { module.verbose('Saving current search results to metadata', results); $module.data(metadata.results, results); } }, write: { cache: function(name, value) { var cache = ($module.data(metadata.cache) !== undefined) ? $module.data(metadata.cache) : {} ; if(settings.cache) { module.verbose('Writing generated html to cache', name, value); cache[name] = value; $module .data(metadata.cache, cache) ; } } }, addResults: function(html) { if( $.isFunction(settings.onResultsAdd) ) { if( settings.onResultsAdd.call($results, html) === false ) { module.debug('onResultsAdd callback cancelled default action'); return false; } } $results .html(html) ; module.showResults(); }, showResults: function() { if( !module.is.visible() && module.is.focused() && !module.is.empty() ) { if( module.can.transition() ) { module.debug('Showing results with css animations'); $results .transition({ animation : settings.transition + ' in', duration : settings.duration, queue : true }) ; } else { module.debug('Showing results with javascript'); $results .stop() .fadeIn(settings.duration, settings.easing) ; } settings.onResultsOpen.call($results); } }, hideResults: function() { if( module.is.visible() ) { if( module.can.transition() ) { module.debug('Hiding results with css animations'); $results .transition({ animation : settings.transition + ' out', duration : settings.duration, queue : true }) ; } else { module.debug('Hiding results with javascript'); $results .stop() .fadeOut(settings.duration, settings.easing) ; } settings.onResultsClose.call($results); } }, generateResults: function(response) { module.debug('Generating html from response', response); var template = settings.templates[settings.type], isProperObject = ($.isPlainObject(response.results) && !$.isEmptyObject(response.results)), isProperArray = ($.isArray(response.results) && response.results.length > 0), html = '' ; if(isProperObject || isProperArray ) { if(settings.maxResults > 0) { if(isProperObject) { if(settings.type == 'standard') { module.error(error.maxResults); } } else { response.results = response.results.slice(0, settings.maxResults); } } if($.isFunction(template)) { html = template(response); } else { module.error(error.noTemplate, false); } } else { html = module.displayMessage(error.noResults, 'empty'); } settings.onResults.call(element, response); return html; }, displayMessage: function(text, type) { type = type || 'standard'; module.debug('Displaying message', text, type); module.addResults( settings.templates.message(text, type) ); return settings.templates.message(text, type); }, setting: function(name, value) { if( $.isPlainObject(name) ) { $.extend(true, settings, name); } else if(value !== undefined) { settings[name] = value; } else { return settings[name]; } }, internal: function(name, value) { if( $.isPlainObject(name) ) { $.extend(true, module, name); } else if(value !== undefined) { module[name] = value; } else { return module[name]; } }, debug: function() { if(settings.debug) { if(settings.performance) { module.performance.log(arguments); } else { module.debug = Function.prototype.bind.call(console.info, console, settings.name + ':'); module.debug.apply(console, arguments); } } }, verbose: function() { if(settings.verbose && settings.debug) { if(settings.performance) { module.performance.log(arguments); } else { module.verbose = Function.prototype.bind.call(console.info, console, settings.name + ':'); module.verbose.apply(console, arguments); } } }, error: function() { module.error = Function.prototype.bind.call(console.error, console, settings.name + ':'); module.error.apply(console, arguments); }, performance: { log: function(message) { var currentTime, executionTime, previousTime ; if(settings.performance) { currentTime = new Date().getTime(); previousTime = time || currentTime; executionTime = currentTime - previousTime; time = currentTime; performance.push({ 'Name' : message[0], 'Arguments' : [].slice.call(message, 1) || '', 'Element' : element, 'Execution Time' : executionTime }); } clearTimeout(module.performance.timer); module.performance.timer = setTimeout(module.performance.display, 100); }, display: function() { var title = settings.name + ':', totalTime = 0 ; time = false; clearTimeout(module.performance.timer); $.each(performance, function(index, data) { totalTime += data['Execution Time']; }); title += ' ' + totalTime + 'ms'; if(moduleSelector) { title += ' \'' + moduleSelector + '\''; } if($allModules.length > 1) { title += ' ' + '(' + $allModules.length + ')'; } if( (console.group !== undefined || console.table !== undefined) && performance.length > 0) { console.groupCollapsed(title); if(console.table) { console.table(performance); } else { $.each(performance, function(index, data) { console.log(data['Name'] + ': ' + data['Execution Time']+'ms'); }); } console.groupEnd(); } performance = []; } }, invoke: function(query, passedArguments, context) { var object = instance, maxDepth, found, response ; passedArguments = passedArguments || queryArguments; context = element || context; if(typeof query == 'string' && object !== undefined) { query = query.split(/[\. ]/); maxDepth = query.length - 1; $.each(query, function(depth, value) { var camelCaseValue = (depth != maxDepth) ? value + query[depth + 1].charAt(0).toUpperCase() + query[depth + 1].slice(1) : query ; if( $.isPlainObject( object[camelCaseValue] ) && (depth != maxDepth) ) { object = object[camelCaseValue]; } else if( object[camelCaseValue] !== undefined ) { found = object[camelCaseValue]; return false; } else if( $.isPlainObject( object[value] ) && (depth != maxDepth) ) { object = object[value]; } else if( object[value] !== undefined ) { found = object[value]; return false; } else { return false; } }); } if( $.isFunction( found ) ) { response = found.apply(context, passedArguments); } else if(found !== undefined) { response = found; } if($.isArray(returnedValue)) { returnedValue.push(response); } else if(returnedValue !== undefined) { returnedValue = [returnedValue, response]; } else if(response !== undefined) { returnedValue = response; } return found; } }; if(methodInvoked) { if(instance === undefined) { module.initialize(); } module.invoke(query); } else { if(instance !== undefined) { instance.invoke('destroy'); } module.initialize(); } }) ; return (returnedValue !== undefined) ? returnedValue : this ; }; $.fn.search.settings = { name : 'Search Module', namespace : 'search', debug : false, verbose : true, performance : true, type : 'standard', minCharacters : 1, // api config apiSettings : false, source : false, searchFields : [ 'title', 'description' ], searchFullText : true, automatic : 'true', hideDelay : 0, searchDelay : 100, maxResults : 7, cache : true, transition : 'scale', duration : 300, easing : 'easeOutExpo', onSelect : false, onResultsAdd : false, onSearchQuery : function(){}, onResults : function(response){}, onResultsOpen : function(){}, onResultsClose : function(){}, className: { active : 'active', empty : 'empty', focus : 'focus', loading : 'loading', pressed : 'down' }, error : { source : 'Cannot search. No source used, and Semantic API module was not included', noResults : 'Your search returned no results', logging : 'Error in debug logging, exiting.', noEndpoint : 'No search endpoint was specified', noTemplate : 'A valid template name was not specified.', serverError : 'There was an issue with querying the server.', maxResults : 'Results must be an array to use maxResults setting', method : 'The method you called is not defined.' }, metadata: { cache : 'cache', results : 'results' }, regExp: { escape : /[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, exact : '(?:\s|^)' }, selector : { prompt : '.prompt', searchButton : '.search.button', results : '.results', category : '.category', result : '.result', title : '.title, .name' }, templates: { escape: function(string) { var badChars = /[&<>"'`]/g, shouldEscape = /[&<>"'`]/, escape = { "&": "&", "<": "<", ">": ">", '"': """, "'": "'", "`": "`" }, escapedChar = function(chr) { return escape[chr]; } ; if(shouldEscape.test(string)) { return string.replace(badChars, escapedChar); } return string; }, message: function(message, type) { var html = '' ; if(message !== undefined && type !== undefined) { html += '' + '
'; } return html; }, category: function(response) { var html = '', escape = $.fn.search.settings.templates.escape ; if(response.results !== undefined) { // each category $.each(response.results, function(index, category) { if(category.results !== undefined && category.results.length > 0) { html += '' + '