From 7f1f0724500822d7037d019d664167a6531c5d4c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?S=C3=A9bastien=20Lucas?= Date: Sun, 13 Oct 2013 22:18:46 +0200 Subject: [PATCH] Add typeahead as a dep. re #34 Note that it's a modified version of release 0.9.3 see https://github.com/twitter/typeahead.js/issues/442 I had to keep duplicates. --- index.php | 1 + resources/typeahead/typeahead.js | 1140 ++++++++++++++++++++++++++++++ 2 files changed, 1141 insertions(+) create mode 100644 resources/typeahead/typeahead.js diff --git a/index.php b/index.php index 3d1e669..ab5b9cf 100644 --- a/index.php +++ b/index.php @@ -50,6 +50,7 @@ " media="screen" /> + diff --git a/resources/typeahead/typeahead.js b/resources/typeahead/typeahead.js new file mode 100644 index 0000000..8a97a26 --- /dev/null +++ b/resources/typeahead/typeahead.js @@ -0,0 +1,1140 @@ +/*! + * typeahead.js 0.9.3 + * https://github.com/twitter/typeahead + * Copyright 2013 Twitter, Inc. and other contributors; Licensed MIT + */ + +(function($) { + var VERSION = "0.9.3"; + var utils = { + isMsie: function() { + var match = /(msie) ([\w.]+)/i.exec(navigator.userAgent); + return match ? parseInt(match[2], 10) : false; + }, + isBlankString: function(str) { + return !str || /^\s*$/.test(str); + }, + escapeRegExChars: function(str) { + return str.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, "\\$&"); + }, + isString: function(obj) { + return typeof obj === "string"; + }, + isNumber: function(obj) { + return typeof obj === "number"; + }, + isArray: $.isArray, + isFunction: $.isFunction, + isObject: $.isPlainObject, + isUndefined: function(obj) { + return typeof obj === "undefined"; + }, + bind: $.proxy, + bindAll: function(obj) { + var val; + for (var key in obj) { + $.isFunction(val = obj[key]) && (obj[key] = $.proxy(val, obj)); + } + }, + indexOf: function(haystack, needle) { + for (var i = 0; i < haystack.length; i++) { + if (haystack[i] === needle) { + return i; + } + } + return -1; + }, + each: $.each, + map: $.map, + filter: $.grep, + every: function(obj, test) { + var result = true; + if (!obj) { + return result; + } + $.each(obj, function(key, val) { + if (!(result = test.call(null, val, key, obj))) { + return false; + } + }); + return !!result; + }, + some: function(obj, test) { + var result = false; + if (!obj) { + return result; + } + $.each(obj, function(key, val) { + if (result = test.call(null, val, key, obj)) { + return false; + } + }); + return !!result; + }, + mixin: $.extend, + getUniqueId: function() { + var counter = 0; + return function() { + return counter++; + }; + }(), + defer: function(fn) { + setTimeout(fn, 0); + }, + debounce: function(func, wait, immediate) { + var timeout, result; + return function() { + var context = this, args = arguments, later, callNow; + later = function() { + timeout = null; + if (!immediate) { + result = func.apply(context, args); + } + }; + callNow = immediate && !timeout; + clearTimeout(timeout); + timeout = setTimeout(later, wait); + if (callNow) { + result = func.apply(context, args); + } + return result; + }; + }, + throttle: function(func, wait) { + var context, args, timeout, result, previous, later; + previous = 0; + later = function() { + previous = new Date(); + timeout = null; + result = func.apply(context, args); + }; + return function() { + var now = new Date(), remaining = wait - (now - previous); + context = this; + args = arguments; + if (remaining <= 0) { + clearTimeout(timeout); + timeout = null; + previous = now; + result = func.apply(context, args); + } else if (!timeout) { + timeout = setTimeout(later, remaining); + } + return result; + }; + }, + tokenizeQuery: function(str) { + return $.trim(str).toLowerCase().split(/[\s]+/); + }, + tokenizeText: function(str) { + return $.trim(str).toLowerCase().split(/[\s\-_]+/); + }, + getProtocol: function() { + return location.protocol; + }, + noop: function() {} + }; + var EventTarget = function() { + var eventSplitter = /\s+/; + return { + on: function(events, callback) { + var event; + if (!callback) { + return this; + } + this._callbacks = this._callbacks || {}; + events = events.split(eventSplitter); + while (event = events.shift()) { + this._callbacks[event] = this._callbacks[event] || []; + this._callbacks[event].push(callback); + } + return this; + }, + trigger: function(events, data) { + var event, callbacks; + if (!this._callbacks) { + return this; + } + events = events.split(eventSplitter); + while (event = events.shift()) { + if (callbacks = this._callbacks[event]) { + for (var i = 0; i < callbacks.length; i += 1) { + callbacks[i].call(this, { + type: event, + data: data + }); + } + } + } + return this; + } + }; + }(); + var EventBus = function() { + var namespace = "typeahead:"; + function EventBus(o) { + if (!o || !o.el) { + $.error("EventBus initialized without el"); + } + this.$el = $(o.el); + } + utils.mixin(EventBus.prototype, { + trigger: function(type) { + var args = [].slice.call(arguments, 1); + this.$el.trigger(namespace + type, args); + } + }); + return EventBus; + }(); + var PersistentStorage = function() { + var ls, methods; + try { + ls = window.localStorage; + ls.setItem("~~~", "!"); + ls.removeItem("~~~"); + } catch (err) { + ls = null; + } + function PersistentStorage(namespace) { + this.prefix = [ "__", namespace, "__" ].join(""); + this.ttlKey = "__ttl__"; + this.keyMatcher = new RegExp("^" + this.prefix); + } + if (ls && window.JSON) { + methods = { + _prefix: function(key) { + return this.prefix + key; + }, + _ttlKey: function(key) { + return this._prefix(key) + this.ttlKey; + }, + get: function(key) { + if (this.isExpired(key)) { + this.remove(key); + } + return decode(ls.getItem(this._prefix(key))); + }, + set: function(key, val, ttl) { + if (utils.isNumber(ttl)) { + ls.setItem(this._ttlKey(key), encode(now() + ttl)); + } else { + ls.removeItem(this._ttlKey(key)); + } + return ls.setItem(this._prefix(key), encode(val)); + }, + remove: function(key) { + ls.removeItem(this._ttlKey(key)); + ls.removeItem(this._prefix(key)); + return this; + }, + clear: function() { + var i, key, keys = [], len = ls.length; + for (i = 0; i < len; i++) { + if ((key = ls.key(i)).match(this.keyMatcher)) { + keys.push(key.replace(this.keyMatcher, "")); + } + } + for (i = keys.length; i--; ) { + this.remove(keys[i]); + } + return this; + }, + isExpired: function(key) { + var ttl = decode(ls.getItem(this._ttlKey(key))); + return utils.isNumber(ttl) && now() > ttl ? true : false; + } + }; + } else { + methods = { + get: utils.noop, + set: utils.noop, + remove: utils.noop, + clear: utils.noop, + isExpired: utils.noop + }; + } + utils.mixin(PersistentStorage.prototype, methods); + return PersistentStorage; + function now() { + return new Date().getTime(); + } + function encode(val) { + return JSON.stringify(utils.isUndefined(val) ? null : val); + } + function decode(val) { + return JSON.parse(val); + } + }(); + var RequestCache = function() { + function RequestCache(o) { + utils.bindAll(this); + o = o || {}; + this.sizeLimit = o.sizeLimit || 10; + this.cache = {}; + this.cachedKeysByAge = []; + } + utils.mixin(RequestCache.prototype, { + get: function(url) { + return this.cache[url]; + }, + set: function(url, resp) { + var requestToEvict; + if (this.cachedKeysByAge.length === this.sizeLimit) { + requestToEvict = this.cachedKeysByAge.shift(); + delete this.cache[requestToEvict]; + } + this.cache[url] = resp; + this.cachedKeysByAge.push(url); + } + }); + return RequestCache; + }(); + var Transport = function() { + var pendingRequestsCount = 0, pendingRequests = {}, maxPendingRequests, requestCache; + function Transport(o) { + utils.bindAll(this); + o = utils.isString(o) ? { + url: o + } : o; + requestCache = requestCache || new RequestCache(); + maxPendingRequests = utils.isNumber(o.maxParallelRequests) ? o.maxParallelRequests : maxPendingRequests || 6; + this.url = o.url; + this.wildcard = o.wildcard || "%QUERY"; + this.filter = o.filter; + this.replace = o.replace; + this.ajaxSettings = { + type: "get", + cache: o.cache, + timeout: o.timeout, + dataType: o.dataType || "json", + beforeSend: o.beforeSend + }; + this._get = (/^throttle$/i.test(o.rateLimitFn) ? utils.throttle : utils.debounce)(this._get, o.rateLimitWait || 300); + } + utils.mixin(Transport.prototype, { + _get: function(url, cb) { + var that = this; + if (belowPendingRequestsThreshold()) { + this._sendRequest(url).done(done); + } else { + this.onDeckRequestArgs = [].slice.call(arguments, 0); + } + function done(resp) { + var data = that.filter ? that.filter(resp) : resp; + cb && cb(data); + requestCache.set(url, resp); + } + }, + _sendRequest: function(url) { + var that = this, jqXhr = pendingRequests[url]; + if (!jqXhr) { + incrementPendingRequests(); + jqXhr = pendingRequests[url] = $.ajax(url, this.ajaxSettings).always(always); + } + return jqXhr; + function always() { + decrementPendingRequests(); + pendingRequests[url] = null; + if (that.onDeckRequestArgs) { + that._get.apply(that, that.onDeckRequestArgs); + that.onDeckRequestArgs = null; + } + } + }, + get: function(query, cb) { + var that = this, encodedQuery = encodeURIComponent(query || ""), url, resp; + cb = cb || utils.noop; + url = this.replace ? this.replace(this.url, encodedQuery) : this.url.replace(this.wildcard, encodedQuery); + if (resp = requestCache.get(url)) { + utils.defer(function() { + cb(that.filter ? that.filter(resp) : resp); + }); + } else { + this._get(url, cb); + } + return !!resp; + } + }); + return Transport; + function incrementPendingRequests() { + pendingRequestsCount++; + } + function decrementPendingRequests() { + pendingRequestsCount--; + } + function belowPendingRequestsThreshold() { + return pendingRequestsCount < maxPendingRequests; + } + }(); + var Dataset = function() { + var keys = { + thumbprint: "thumbprint", + protocol: "protocol", + itemHash: "itemHash", + adjacencyList: "adjacencyList" + }; + function Dataset(o) { + utils.bindAll(this); + if (utils.isString(o.template) && !o.engine) { + $.error("no template engine specified"); + } + if (!o.local && !o.prefetch && !o.remote) { + $.error("one of local, prefetch, or remote is required"); + } + this.name = o.name || utils.getUniqueId(); + this.limit = o.limit || 5; + this.minLength = o.minLength || 1; + this.header = o.header; + this.footer = o.footer; + this.valueKey = o.valueKey || "value"; + this.template = compileTemplate(o.template, o.engine, this.valueKey); + this.local = o.local; + this.prefetch = o.prefetch; + this.remote = o.remote; + this.itemHash = {}; + this.adjacencyList = {}; + this.storage = o.name ? new PersistentStorage(o.name) : null; + this.allowDuplicates = o.allowDuplicates || true; + } + utils.mixin(Dataset.prototype, { + _processLocalData: function(data) { + this._mergeProcessedData(this._processData(data)); + }, + _loadPrefetchData: function(o) { + var that = this, thumbprint = VERSION + (o.thumbprint || ""), storedThumbprint, storedProtocol, storedItemHash, storedAdjacencyList, isExpired, deferred; + if (this.storage) { + storedThumbprint = this.storage.get(keys.thumbprint); + storedProtocol = this.storage.get(keys.protocol); + storedItemHash = this.storage.get(keys.itemHash); + storedAdjacencyList = this.storage.get(keys.adjacencyList); + } + isExpired = storedThumbprint !== thumbprint || storedProtocol !== utils.getProtocol(); + o = utils.isString(o) ? { + url: o + } : o; + o.ttl = utils.isNumber(o.ttl) ? o.ttl : 24 * 60 * 60 * 1e3; + if (storedItemHash && storedAdjacencyList && !isExpired) { + this._mergeProcessedData({ + itemHash: storedItemHash, + adjacencyList: storedAdjacencyList + }); + deferred = $.Deferred().resolve(); + } else { + deferred = $.getJSON(o.url).done(processPrefetchData); + } + return deferred; + function processPrefetchData(data) { + var filteredData = o.filter ? o.filter(data) : data, processedData = that._processData(filteredData), itemHash = processedData.itemHash, adjacencyList = processedData.adjacencyList; + if (that.storage) { + that.storage.set(keys.itemHash, itemHash, o.ttl); + that.storage.set(keys.adjacencyList, adjacencyList, o.ttl); + that.storage.set(keys.thumbprint, thumbprint, o.ttl); + that.storage.set(keys.protocol, utils.getProtocol(), o.ttl); + } + that._mergeProcessedData(processedData); + } + }, + _transformDatum: function(datum) { + var value = utils.isString(datum) ? datum : datum[this.valueKey], tokens = datum.tokens || utils.tokenizeText(value), item = { + value: value, + tokens: tokens + }; + if (utils.isString(datum)) { + item.datum = {}; + item.datum[this.valueKey] = datum; + } else { + item.datum = datum; + } + item.tokens = utils.filter(item.tokens, function(token) { + return !utils.isBlankString(token); + }); + item.tokens = utils.map(item.tokens, function(token) { + return token.toLowerCase(); + }); + return item; + }, + _processData: function(data) { + var that = this, itemHash = {}, adjacencyList = {}; + utils.each(data, function(i, datum) { + var item = that._transformDatum(datum), id = utils.getUniqueId(item.value); + itemHash[id] = item; + utils.each(item.tokens, function(i, token) { + var character = token.charAt(0), adjacency = adjacencyList[character] || (adjacencyList[character] = [ id ]); + !~utils.indexOf(adjacency, id) && adjacency.push(id); + }); + }); + return { + itemHash: itemHash, + adjacencyList: adjacencyList + }; + }, + _mergeProcessedData: function(processedData) { + var that = this; + utils.mixin(this.itemHash, processedData.itemHash); + utils.each(processedData.adjacencyList, function(character, adjacency) { + var masterAdjacency = that.adjacencyList[character]; + that.adjacencyList[character] = masterAdjacency ? masterAdjacency.concat(adjacency) : adjacency; + }); + }, + _getLocalSuggestions: function(terms) { + var that = this, firstChars = [], lists = [], shortestList, suggestions = []; + utils.each(terms, function(i, term) { + var firstChar = term.charAt(0); + !~utils.indexOf(firstChars, firstChar) && firstChars.push(firstChar); + }); + utils.each(firstChars, function(i, firstChar) { + var list = that.adjacencyList[firstChar]; + if (!list) { + return false; + } + lists.push(list); + if (!shortestList || list.length < shortestList.length) { + shortestList = list; + } + }); + if (lists.length < firstChars.length) { + return []; + } + utils.each(shortestList, function(i, id) { + var item = that.itemHash[id], isCandidate, isMatch; + isCandidate = utils.every(lists, function(list) { + return ~utils.indexOf(list, id); + }); + isMatch = isCandidate && utils.every(terms, function(term) { + return utils.some(item.tokens, function(token) { + return token.indexOf(term) === 0; + }); + }); + isMatch && suggestions.push(item); + }); + return suggestions; + }, + initialize: function() { + var deferred; + this.local && this._processLocalData(this.local); + this.transport = this.remote ? new Transport(this.remote) : null; + deferred = this.prefetch ? this._loadPrefetchData(this.prefetch) : $.Deferred().resolve(); + this.local = this.prefetch = this.remote = null; + this.initialize = function() { + return deferred; + }; + return deferred; + }, + getSuggestions: function(query, cb) { + var that = this, terms, suggestions, cacheHit = false; + if (query.length < this.minLength) { + return; + } + terms = utils.tokenizeQuery(query); + suggestions = this._getLocalSuggestions(terms).slice(0, this.limit); + if (suggestions.length < this.limit && this.transport) { + cacheHit = this.transport.get(query, processRemoteData); + } + !cacheHit && cb && cb(suggestions); + function processRemoteData(data) { + suggestions = suggestions.slice(0); + utils.each(data, function(i, datum) { + var item = that._transformDatum(datum), isDuplicate; + isDuplicate = that.allowDuplicates ? false : utils.some(suggestions, function(suggestion) { + return item.value === suggestion.value; + }); + !isDuplicate && suggestions.push(item); + return suggestions.length < that.limit; + }); + cb && cb(suggestions); + } + } + }); + return Dataset; + function compileTemplate(template, engine, valueKey) { + var renderFn, compiledTemplate; + if (utils.isFunction(template)) { + renderFn = template; + } else if (utils.isString(template)) { + compiledTemplate = engine.compile(template); + renderFn = utils.bind(compiledTemplate.render, compiledTemplate); + } else { + renderFn = function(context) { + return "

" + context[valueKey] + "

"; + }; + } + return renderFn; + } + }(); + var InputView = function() { + function InputView(o) { + var that = this; + utils.bindAll(this); + this.specialKeyCodeMap = { + 9: "tab", + 27: "esc", + 37: "left", + 39: "right", + 13: "enter", + 38: "up", + 40: "down" + }; + this.$hint = $(o.hint); + this.$input = $(o.input).on("blur.tt", this._handleBlur).on("focus.tt", this._handleFocus).on("keydown.tt", this._handleSpecialKeyEvent); + if (!utils.isMsie()) { + this.$input.on("input.tt", this._compareQueryToInputValue); + } else { + this.$input.on("keydown.tt keypress.tt cut.tt paste.tt", function($e) { + if (that.specialKeyCodeMap[$e.which || $e.keyCode]) { + return; + } + utils.defer(that._compareQueryToInputValue); + }); + } + this.query = this.$input.val(); + this.$overflowHelper = buildOverflowHelper(this.$input); + } + utils.mixin(InputView.prototype, EventTarget, { + _handleFocus: function() { + this.trigger("focused"); + }, + _handleBlur: function() { + this.trigger("blured"); + }, + _handleSpecialKeyEvent: function($e) { + var keyName = this.specialKeyCodeMap[$e.which || $e.keyCode]; + keyName && this.trigger(keyName + "Keyed", $e); + }, + _compareQueryToInputValue: function() { + var inputValue = this.getInputValue(), isSameQuery = compareQueries(this.query, inputValue), isSameQueryExceptWhitespace = isSameQuery ? this.query.length !== inputValue.length : false; + if (isSameQueryExceptWhitespace) { + this.trigger("whitespaceChanged", { + value: this.query + }); + } else if (!isSameQuery) { + this.trigger("queryChanged", { + value: this.query = inputValue + }); + } + }, + destroy: function() { + this.$hint.off(".tt"); + this.$input.off(".tt"); + this.$hint = this.$input = this.$overflowHelper = null; + }, + focus: function() { + this.$input.focus(); + }, + blur: function() { + this.$input.blur(); + }, + getQuery: function() { + return this.query; + }, + setQuery: function(query) { + this.query = query; + }, + getInputValue: function() { + return this.$input.val(); + }, + setInputValue: function(value, silent) { + this.$input.val(value); + !silent && this._compareQueryToInputValue(); + }, + getHintValue: function() { + return this.$hint.val(); + }, + setHintValue: function(value) { + this.$hint.val(value); + }, + getLanguageDirection: function() { + return (this.$input.css("direction") || "ltr").toLowerCase(); + }, + isOverflow: function() { + this.$overflowHelper.text(this.getInputValue()); + return this.$overflowHelper.width() > this.$input.width(); + }, + isCursorAtEnd: function() { + var valueLength = this.$input.val().length, selectionStart = this.$input[0].selectionStart, range; + if (utils.isNumber(selectionStart)) { + return selectionStart === valueLength; + } else if (document.selection) { + range = document.selection.createRange(); + range.moveStart("character", -valueLength); + return valueLength === range.text.length; + } + return true; + } + }); + return InputView; + function buildOverflowHelper($input) { + return $("").css({ + position: "absolute", + left: "-9999px", + visibility: "hidden", + whiteSpace: "nowrap", + fontFamily: $input.css("font-family"), + fontSize: $input.css("font-size"), + fontStyle: $input.css("font-style"), + fontVariant: $input.css("font-variant"), + fontWeight: $input.css("font-weight"), + wordSpacing: $input.css("word-spacing"), + letterSpacing: $input.css("letter-spacing"), + textIndent: $input.css("text-indent"), + textRendering: $input.css("text-rendering"), + textTransform: $input.css("text-transform") + }).insertAfter($input); + } + function compareQueries(a, b) { + a = (a || "").replace(/^\s*/g, "").replace(/\s{2,}/g, " "); + b = (b || "").replace(/^\s*/g, "").replace(/\s{2,}/g, " "); + return a === b; + } + }(); + var DropdownView = function() { + var html = { + suggestionsList: '' + }, css = { + suggestionsList: { + display: "block" + }, + suggestion: { + whiteSpace: "nowrap", + cursor: "pointer" + }, + suggestionChild: { + whiteSpace: "normal" + } + }; + function DropdownView(o) { + utils.bindAll(this); + this.isOpen = false; + this.isEmpty = true; + this.isMouseOverDropdown = false; + this.$menu = $(o.menu).on("mouseenter.tt", this._handleMouseenter).on("mouseleave.tt", this._handleMouseleave).on("click.tt", ".tt-suggestion", this._handleSelection).on("mouseover.tt", ".tt-suggestion", this._handleMouseover); + } + utils.mixin(DropdownView.prototype, EventTarget, { + _handleMouseenter: function() { + this.isMouseOverDropdown = true; + }, + _handleMouseleave: function() { + this.isMouseOverDropdown = false; + }, + _handleMouseover: function($e) { + var $suggestion = $($e.currentTarget); + this._getSuggestions().removeClass("tt-is-under-cursor"); + $suggestion.addClass("tt-is-under-cursor"); + }, + _handleSelection: function($e) { + var $suggestion = $($e.currentTarget); + this.trigger("suggestionSelected", extractSuggestion($suggestion)); + }, + _show: function() { + this.$menu.css("display", "block"); + }, + _hide: function() { + this.$menu.hide(); + }, + _moveCursor: function(increment) { + var $suggestions, $cur, nextIndex, $underCursor; + if (!this.isVisible()) { + return; + } + $suggestions = this._getSuggestions(); + $cur = $suggestions.filter(".tt-is-under-cursor"); + $cur.removeClass("tt-is-under-cursor"); + nextIndex = $suggestions.index($cur) + increment; + nextIndex = (nextIndex + 1) % ($suggestions.length + 1) - 1; + if (nextIndex === -1) { + this.trigger("cursorRemoved"); + return; + } else if (nextIndex < -1) { + nextIndex = $suggestions.length - 1; + } + $underCursor = $suggestions.eq(nextIndex).addClass("tt-is-under-cursor"); + this._ensureVisibility($underCursor); + this.trigger("cursorMoved", extractSuggestion($underCursor)); + }, + _getSuggestions: function() { + return this.$menu.find(".tt-suggestions > .tt-suggestion"); + }, + _ensureVisibility: function($el) { + var menuHeight = this.$menu.height() + parseInt(this.$menu.css("paddingTop"), 10) + parseInt(this.$menu.css("paddingBottom"), 10), menuScrollTop = this.$menu.scrollTop(), elTop = $el.position().top, elBottom = elTop + $el.outerHeight(true); + if (elTop < 0) { + this.$menu.scrollTop(menuScrollTop + elTop); + } else if (menuHeight < elBottom) { + this.$menu.scrollTop(menuScrollTop + (elBottom - menuHeight)); + } + }, + destroy: function() { + this.$menu.off(".tt"); + this.$menu = null; + }, + isVisible: function() { + return this.isOpen && !this.isEmpty; + }, + closeUnlessMouseIsOverDropdown: function() { + if (!this.isMouseOverDropdown) { + this.close(); + } + }, + close: function() { + if (this.isOpen) { + this.isOpen = false; + this.isMouseOverDropdown = false; + this._hide(); + this.$menu.find(".tt-suggestions > .tt-suggestion").removeClass("tt-is-under-cursor"); + this.trigger("closed"); + } + }, + open: function() { + if (!this.isOpen) { + this.isOpen = true; + !this.isEmpty && this._show(); + this.trigger("opened"); + } + }, + setLanguageDirection: function(dir) { + var ltrCss = { + left: "0", + right: "auto" + }, rtlCss = { + left: "auto", + right: " 0" + }; + dir === "ltr" ? this.$menu.css(ltrCss) : this.$menu.css(rtlCss); + }, + moveCursorUp: function() { + this._moveCursor(-1); + }, + moveCursorDown: function() { + this._moveCursor(+1); + }, + getSuggestionUnderCursor: function() { + var $suggestion = this._getSuggestions().filter(".tt-is-under-cursor").first(); + return $suggestion.length > 0 ? extractSuggestion($suggestion) : null; + }, + getFirstSuggestion: function() { + var $suggestion = this._getSuggestions().first(); + return $suggestion.length > 0 ? extractSuggestion($suggestion) : null; + }, + renderSuggestions: function(dataset, suggestions) { + var datasetClassName = "tt-dataset-" + dataset.name, wrapper = '
%body
', compiledHtml, $suggestionsList, $dataset = this.$menu.find("." + datasetClassName), elBuilder, fragment, $el; + if ($dataset.length === 0) { + $suggestionsList = $(html.suggestionsList).css(css.suggestionsList); + $dataset = $("
").addClass(datasetClassName).append(dataset.header).append($suggestionsList).append(dataset.footer).appendTo(this.$menu); + } + if (suggestions.length > 0) { + this.isEmpty = false; + this.isOpen && this._show(); + elBuilder = document.createElement("div"); + fragment = document.createDocumentFragment(); + utils.each(suggestions, function(i, suggestion) { + suggestion.dataset = dataset.name; + compiledHtml = dataset.template(suggestion.datum); + elBuilder.innerHTML = wrapper.replace("%body", compiledHtml); + $el = $(elBuilder.firstChild).css(css.suggestion).data("suggestion", suggestion); + $el.children().each(function() { + $(this).css(css.suggestionChild); + }); + fragment.appendChild($el[0]); + }); + $dataset.show().find(".tt-suggestions").html(fragment); + } else { + this.clearSuggestions(dataset.name); + } + this.trigger("suggestionsRendered"); + }, + clearSuggestions: function(datasetName) { + var $datasets = datasetName ? this.$menu.find(".tt-dataset-" + datasetName) : this.$menu.find('[class^="tt-dataset-"]'), $suggestions = $datasets.find(".tt-suggestions"); + $datasets.hide(); + $suggestions.empty(); + if (this._getSuggestions().length === 0) { + this.isEmpty = true; + this._hide(); + } + } + }); + return DropdownView; + function extractSuggestion($el) { + return $el.data("suggestion"); + } + }(); + var TypeaheadView = function() { + var html = { + wrapper: '', + hint: '', + dropdown: '' + }, css = { + wrapper: { + position: "relative", + display: "inline-block" + }, + hint: { + position: "absolute", + top: "0", + left: "0", + borderColor: "transparent", + boxShadow: "none" + }, + query: { + position: "relative", + verticalAlign: "top", + backgroundColor: "transparent" + }, + dropdown: { + position: "absolute", + top: "100%", + left: "0", + zIndex: "100", + display: "none" + } + }; + if (utils.isMsie()) { + utils.mixin(css.query, { + backgroundImage: "url(data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)" + }); + } + if (utils.isMsie() && utils.isMsie() <= 7) { + utils.mixin(css.wrapper, { + display: "inline", + zoom: "1" + }); + utils.mixin(css.query, { + marginTop: "-1px" + }); + } + function TypeaheadView(o) { + var $menu, $input, $hint; + utils.bindAll(this); + this.$node = buildDomStructure(o.input); + this.datasets = o.datasets; + this.dir = null; + this.eventBus = o.eventBus; + $menu = this.$node.find(".tt-dropdown-menu"); + $input = this.$node.find(".tt-query"); + $hint = this.$node.find(".tt-hint"); + this.dropdownView = new DropdownView({ + menu: $menu + }).on("suggestionSelected", this._handleSelection).on("cursorMoved", this._clearHint).on("cursorMoved", this._setInputValueToSuggestionUnderCursor).on("cursorRemoved", this._setInputValueToQuery).on("cursorRemoved", this._updateHint).on("suggestionsRendered", this._updateHint).on("opened", this._updateHint).on("closed", this._clearHint).on("opened closed", this._propagateEvent); + this.inputView = new InputView({ + input: $input, + hint: $hint + }).on("focused", this._openDropdown).on("blured", this._closeDropdown).on("blured", this._setInputValueToQuery).on("enterKeyed tabKeyed", this._handleSelection).on("queryChanged", this._clearHint).on("queryChanged", this._clearSuggestions).on("queryChanged", this._getSuggestions).on("whitespaceChanged", this._updateHint).on("queryChanged whitespaceChanged", this._openDropdown).on("queryChanged whitespaceChanged", this._setLanguageDirection).on("escKeyed", this._closeDropdown).on("escKeyed", this._setInputValueToQuery).on("tabKeyed upKeyed downKeyed", this._managePreventDefault).on("upKeyed downKeyed", this._moveDropdownCursor).on("upKeyed downKeyed", this._openDropdown).on("tabKeyed leftKeyed rightKeyed", this._autocomplete); + } + utils.mixin(TypeaheadView.prototype, EventTarget, { + _managePreventDefault: function(e) { + var $e = e.data, hint, inputValue, preventDefault = false; + switch (e.type) { + case "tabKeyed": + hint = this.inputView.getHintValue(); + inputValue = this.inputView.getInputValue(); + preventDefault = hint && hint !== inputValue; + break; + + case "upKeyed": + case "downKeyed": + preventDefault = !$e.shiftKey && !$e.ctrlKey && !$e.metaKey; + break; + } + preventDefault && $e.preventDefault(); + }, + _setLanguageDirection: function() { + var dir = this.inputView.getLanguageDirection(); + if (dir !== this.dir) { + this.dir = dir; + this.$node.css("direction", dir); + this.dropdownView.setLanguageDirection(dir); + } + }, + _updateHint: function() { + var suggestion = this.dropdownView.getFirstSuggestion(), hint = suggestion ? suggestion.value : null, dropdownIsVisible = this.dropdownView.isVisible(), inputHasOverflow = this.inputView.isOverflow(), inputValue, query, escapedQuery, beginsWithQuery, match; + if (hint && dropdownIsVisible && !inputHasOverflow) { + inputValue = this.inputView.getInputValue(); + query = inputValue.replace(/\s{2,}/g, " ").replace(/^\s+/g, ""); + escapedQuery = utils.escapeRegExChars(query); + beginsWithQuery = new RegExp("^(?:" + escapedQuery + ")(.*$)", "i"); + match = beginsWithQuery.exec(hint); + this.inputView.setHintValue(inputValue + (match ? match[1] : "")); + } + }, + _clearHint: function() { + this.inputView.setHintValue(""); + }, + _clearSuggestions: function() { + this.dropdownView.clearSuggestions(); + }, + _setInputValueToQuery: function() { + this.inputView.setInputValue(this.inputView.getQuery()); + }, + _setInputValueToSuggestionUnderCursor: function(e) { + var suggestion = e.data; + this.inputView.setInputValue(suggestion.value, true); + }, + _openDropdown: function() { + this.dropdownView.open(); + }, + _closeDropdown: function(e) { + this.dropdownView[e.type === "blured" ? "closeUnlessMouseIsOverDropdown" : "close"](); + }, + _moveDropdownCursor: function(e) { + var $e = e.data; + if (!$e.shiftKey && !$e.ctrlKey && !$e.metaKey) { + this.dropdownView[e.type === "upKeyed" ? "moveCursorUp" : "moveCursorDown"](); + } + }, + _handleSelection: function(e) { + var byClick = e.type === "suggestionSelected", suggestion = byClick ? e.data : this.dropdownView.getSuggestionUnderCursor(); + if (suggestion) { + this.inputView.setInputValue(suggestion.value); + byClick ? this.inputView.focus() : e.data.preventDefault(); + byClick && utils.isMsie() ? utils.defer(this.dropdownView.close) : this.dropdownView.close(); + this.eventBus.trigger("selected", suggestion.datum, suggestion.dataset); + } + }, + _getSuggestions: function() { + var that = this, query = this.inputView.getQuery(); + if (utils.isBlankString(query)) { + return; + } + utils.each(this.datasets, function(i, dataset) { + dataset.getSuggestions(query, function(suggestions) { + if (query === that.inputView.getQuery()) { + that.dropdownView.renderSuggestions(dataset, suggestions); + } + }); + }); + }, + _autocomplete: function(e) { + var isCursorAtEnd, ignoreEvent, query, hint, suggestion; + if (e.type === "rightKeyed" || e.type === "leftKeyed") { + isCursorAtEnd = this.inputView.isCursorAtEnd(); + ignoreEvent = this.inputView.getLanguageDirection() === "ltr" ? e.type === "leftKeyed" : e.type === "rightKeyed"; + if (!isCursorAtEnd || ignoreEvent) { + return; + } + } + query = this.inputView.getQuery(); + hint = this.inputView.getHintValue(); + if (hint !== "" && query !== hint) { + suggestion = this.dropdownView.getFirstSuggestion(); + this.inputView.setInputValue(suggestion.value); + this.eventBus.trigger("autocompleted", suggestion.datum, suggestion.dataset); + } + }, + _propagateEvent: function(e) { + this.eventBus.trigger(e.type); + }, + destroy: function() { + this.inputView.destroy(); + this.dropdownView.destroy(); + destroyDomStructure(this.$node); + this.$node = null; + }, + setQuery: function(query) { + this.inputView.setQuery(query); + this.inputView.setInputValue(query); + this._clearHint(); + this._clearSuggestions(); + this._getSuggestions(); + } + }); + return TypeaheadView; + function buildDomStructure(input) { + var $wrapper = $(html.wrapper), $dropdown = $(html.dropdown), $input = $(input), $hint = $(html.hint); + $wrapper = $wrapper.css(css.wrapper); + $dropdown = $dropdown.css(css.dropdown); + $hint.css(css.hint).css({ + backgroundAttachment: $input.css("background-attachment"), + backgroundClip: $input.css("background-clip"), + backgroundColor: $input.css("background-color"), + backgroundImage: $input.css("background-image"), + backgroundOrigin: $input.css("background-origin"), + backgroundPosition: $input.css("background-position"), + backgroundRepeat: $input.css("background-repeat"), + backgroundSize: $input.css("background-size") + }); + $input.data("ttAttrs", { + dir: $input.attr("dir"), + autocomplete: $input.attr("autocomplete"), + spellcheck: $input.attr("spellcheck"), + style: $input.attr("style") + }); + $input.addClass("tt-query").attr({ + autocomplete: "off", + spellcheck: false + }).css(css.query); + try { + !$input.attr("dir") && $input.attr("dir", "auto"); + } catch (e) {} + return $input.wrap($wrapper).parent().prepend($hint).append($dropdown); + } + function destroyDomStructure($node) { + var $input = $node.find(".tt-query"); + utils.each($input.data("ttAttrs"), function(key, val) { + utils.isUndefined(val) ? $input.removeAttr(key) : $input.attr(key, val); + }); + $input.detach().removeData("ttAttrs").removeClass("tt-query").insertAfter($node); + $node.remove(); + } + }(); + (function() { + var cache = {}, viewKey = "ttView", methods; + methods = { + initialize: function(datasetDefs) { + var datasets; + datasetDefs = utils.isArray(datasetDefs) ? datasetDefs : [ datasetDefs ]; + if (datasetDefs.length === 0) { + $.error("no datasets provided"); + } + datasets = utils.map(datasetDefs, function(o) { + var dataset = cache[o.name] ? cache[o.name] : new Dataset(o); + if (o.name) { + cache[o.name] = dataset; + } + return dataset; + }); + return this.each(initialize); + function initialize() { + var $input = $(this), deferreds, eventBus = new EventBus({ + el: $input + }); + deferreds = utils.map(datasets, function(dataset) { + return dataset.initialize(); + }); + $input.data(viewKey, new TypeaheadView({ + input: $input, + eventBus: eventBus = new EventBus({ + el: $input + }), + datasets: datasets + })); + $.when.apply($, deferreds).always(function() { + utils.defer(function() { + eventBus.trigger("initialized"); + }); + }); + } + }, + destroy: function() { + return this.each(destroy); + function destroy() { + var $this = $(this), view = $this.data(viewKey); + if (view) { + view.destroy(); + $this.removeData(viewKey); + } + } + }, + setQuery: function(query) { + return this.each(setQuery); + function setQuery() { + var view = $(this).data(viewKey); + view && view.setQuery(query); + } + } + }; + jQuery.fn.typeahead = function(method) { + if (methods[method]) { + return methods[method].apply(this, [].slice.call(arguments, 1)); + } else { + return methods.initialize.apply(this, arguments); + } + }; + })(); +})(window.jQuery); \ No newline at end of file