/* =============================================================
* bootstrap3-typeahead.js v4.0.2
* https://github.com/bassjobsen/Bootstrap-3-Typeahead
* =============================================================
* Original written by @mdo and @fat
* =============================================================
* Copyright 2014 Bass Jobsen @bassjobsen
*
* Licensed under the Apache License, Version 2.0 (the 'License');
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an 'AS IS' BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ============================================================ */
(function (root, factory) {
'use strict';
// CommonJS module is defined
if (typeof module !== 'undefined' && module.exports) {
module.exports = factory(require('jquery'));
}
// AMD module is defined
else if (typeof define === 'function' && define.amd) {
define(['jquery'], function ($) {
return factory($);
});
} else {
factory(root.jQuery);
}
}(this, function ($) {
'use strict';
// jshint laxcomma: true
/* TYPEAHEAD PUBLIC CLASS DEFINITION
* ================================= */
var Typeahead = function (element, options) {
this.$element = $(element);
this.options = $.extend({}, Typeahead.defaults, options);
this.matcher = this.options.matcher || this.matcher;
this.sorter = this.options.sorter || this.sorter;
this.select = this.options.select || this.select;
this.autoSelect = typeof this.options.autoSelect == 'boolean' ? this.options.autoSelect : true;
this.highlighter = this.options.highlighter || this.highlighter;
this.render = this.options.render || this.render;
this.updater = this.options.updater || this.updater;
this.displayText = this.options.displayText || this.displayText;
this.itemLink = this.options.itemLink || this.itemLink;
this.itemTitle = this.options.itemTitle || this.itemTitle;
this.followLinkOnSelect = this.options.followLinkOnSelect || this.followLinkOnSelect;
this.source = this.options.source;
this.delay = this.options.delay;
this.theme = this.options.theme && this.options.themes && this.options.themes[this.options.theme] || Typeahead.defaults.themes[Typeahead.defaults.theme];
this.$menu = $(this.options.menu || this.theme.menu);
this.$appendTo = this.options.appendTo ? $(this.options.appendTo) : null;
this.fitToElement = typeof this.options.fitToElement == 'boolean' ? this.options.fitToElement : false;
this.shown = false;
this.listen();
this.showHintOnFocus = typeof this.options.showHintOnFocus == 'boolean' || this.options.showHintOnFocus === 'all' ? this.options.showHintOnFocus : false;
this.afterSelect = this.options.afterSelect;
this.afterEmptySelect = this.options.afterEmptySelect;
this.addItem = false;
this.value = this.$element.val() || this.$element.text();
this.keyPressed = false;
this.focused = this.$element.is(':focus');
this.changeInputOnSelect = this.options.changeInputOnSelect || this.changeInputOnSelect;
this.changeInputOnMove = this.options.changeInputOnMove || this.changeInputOnMove;
this.openLinkInNewTab = this.options.openLinkInNewTab || this.openLinkInNewTab;
this.selectOnBlur = this.options.selectOnBlur || this.selectOnBlur;
this.showCategoryHeader = this.options.showCategoryHeader || this.showCategoryHeader;
};
Typeahead.prototype = {
constructor: Typeahead,
setDefault: function (val) {
// var val = this.$menu.find('.active').data('value');
this.$element.data('active', val);
if (this.autoSelect || val) {
var newVal = this.updater(val);
// Updater can be set to any random functions via "options" parameter in constructor above.
// Add null check for cases when updater returns void or undefined.
if (!newVal) {
newVal = '';
}
this.$element
.val(this.displayText(newVal) || newVal)
.text(this.displayText(newVal) || newVal)
.change();
this.afterSelect(newVal);
}
return this.hide();
},
select: function () {
var val = this.$menu.find('.active').data('value');
this.$element.data('active', val);
if (this.autoSelect || val) {
var newVal = this.updater(val);
// Updater can be set to any random functions via "options" parameter in constructor above.
// Add null check for cases when updater returns void or undefined.
if (!newVal) {
newVal = '';
}
if (this.changeInputOnSelect) {
this.$element
.val(this.displayText(newVal) || newVal)
.text(this.displayText(newVal) || newVal)
.change();
}
if (this.followLinkOnSelect && this.itemLink(val)) {
if (this.openLinkInNewTab) {
window.open(this.itemLink(val), '_blank');
} else {
document.location = this.itemLink(val);
}
this.afterSelect(newVal);
} else if (this.followLinkOnSelect && !this.itemLink(val)) {
this.afterEmptySelect(newVal);
} else {
this.afterSelect(newVal);
}
} else {
this.afterEmptySelect();
}
return this.hide();
},
updater: function (item) {
return item;
},
setSource: function (source) {
this.source = source;
},
show: function () {
var pos = $.extend({}, this.$element.position(), {
height: this.$element[0].offsetHeight
});
var scrollHeight = typeof this.options.scrollHeight == 'function' ?
this.options.scrollHeight.call() :
this.options.scrollHeight;
var element;
if (this.shown) {
element = this.$menu;
} else if (this.$appendTo) {
element = this.$menu.appendTo(this.$appendTo);
this.hasSameParent = this.$appendTo.is(this.$element.parent());
} else {
element = this.$menu.insertAfter(this.$element);
this.hasSameParent = true;
}
if (!this.hasSameParent) {
// We cannot rely on the element position, need to position relative to the window
element.css('position', 'fixed');
var offset = this.$element.offset();
pos.top = offset.top;
pos.left = offset.left;
}
// The rules for bootstrap are: 'dropup' in the parent and 'dropdown-menu-right' in the element.
// Note that to get right alignment, you'll need to specify `menu` in the options to be:
// '<ul class="typeahead dropdown-menu" role="listbox"></ul>'
var dropup = $(element).parent().hasClass('dropup');
var newTop = dropup ? 'auto' : (pos.top + pos.height + scrollHeight);
var right = $(element).hasClass('dropdown-menu-right');
var newLeft = right ? 'auto' : pos.left;
// it seems like setting the css is a bad idea (just let Bootstrap do it), but I'll keep the old
// logic in place except for the dropup/right-align cases.
element.css({ top: newTop, left: newLeft }).show();
if (this.options.fitToElement === true) {
element.css('width', this.$element.outerWidth() + 'px');
}
this.shown = true;
return this;
},
hide: function () {
this.$menu.hide();
this.shown = false;
return this;
},
lookup: function (query) {
if (typeof(query) != 'undefined' && query !== null) {
this.query = query;
} else {
this.query = this.$element.val();
}
if (this.query.length < this.options.minLength && !this.options.showHintOnFocus) {
return this.shown ? this.hide() : this;
}
var worker = $.proxy(function () {
// Bloodhound (since 0.11) needs three arguments.
// Two of them are callback functions (sync and async) for local and remote data processing
// see https://github.com/twitter/typeahead.js/blob/master/src/bloodhound/bloodhound.js#L132
if ($.isFunction(this.source) && this.source.length === 3) {
this.source(this.query, $.proxy(this.process, this), $.proxy(this.process, this));
} else if ($.isFunction(this.source)) {
this.source(this.query, $.proxy(this.process, this));
} else if (this.source) {
this.process(this.source);
}
}, this);
clearTimeout(this.lookupWorker);
this.lookupWorker = setTimeout(worker, this.delay);
},
process: function (items) {
var that = this;
items = $.grep(items, function (item) {
return that.matcher(item);
});
items = this.sorter(items);
if (!items.length && !this.options.addItem) {
return this.shown ? this.hide() : this;
}
if (items.length > 0) {
this.$element.data('active', items[0]);
} else {
this.$element.data('active', null);
}
if (this.options.items != 'all') {
items = items.slice(0, this.options.items);
}
// Add item
if (this.options.addItem) {
items.push(this.options.addItem);
}
return this.render(items).show();
},
matcher: function (item) {
var it = this.displayText(item);
return ~it.toLowerCase().indexOf(this.query.toLowerCase());
},
sorter: function (items) {
var beginswith = [];
var caseSensitive = [];
var caseInsensitive = [];
var item;
while ((item = items.shift())) {
var it = this.displayText(item);
if (!it.toLowerCase().indexOf(this.query.toLowerCase())) {
beginswith.push(item);
} else if (~it.indexOf(this.query)) {
caseSensitive.push(item);
} else {
caseInsensitive.push(item);
}
}
return beginswith.concat(caseSensitive, caseInsensitive);
},
highlighter: function (item) {
var text = this.query;
if (text === '') {
return item;
}
var matches = item.match(/(>)([^<]*)(<)/g);
var first = [];
var second = [];
var i;
if (matches && matches.length) {
// html
for (i = 0; i < matches.length; ++i) {
if (matches[i].length > 2) {// escape '><'
first.push(matches[i]);
}
}
} else {
// text
first = [];
first.push(item);
}
text = text.replace((/[\(\)\/\.\*\+\?\[\]]/g), function (mat) {
return '\\' + mat;
});
var reg = new RegExp(text, 'g');
var m;
for (i = 0; i < first.length; ++i) {
m = first[i].match(reg);
if (m && m.length > 0) {// find all text nodes matches
second.push(first[i]);
}
}
for (i = 0; i < second.length; ++i) {
item = item.replace(second[i], second[i].replace(reg, '<strong>$&</strong>'));
}
return item;
},
render: function (items) {
var that = this;
var self = this;
var activeFound = false;
var data = [];
var _category = that.options.separator;
$.each(items, function (key, value) {
// inject separator
if (key > 0 && value[_category] !== items[key - 1][_category]) {
data.push({
__type: 'divider'
});
}
if (that.showCategoryHeader) {
// inject category header
if (value[_category] && (key === 0 || value[_category] !== items[key - 1][_category])) {
data.push({
__type: 'category',
name: value[_category]
});
}
}
data.push(value);
});
items = $(data).map(function (i, item) {
if ((item.__type || false) == 'category'){
return $(that.options.headerHtml || that.theme.headerHtml).text(item.name)[0];
}
if ((item.__type || false) == 'divider'){
return $(that.options.headerDivider || that.theme.headerDivider)[0];
}
var text = self.displayText(item);
i = $(that.options.item || that.theme.item).data('value', item);
i.find(that.options.itemContentSelector || that.theme.itemContentSelector)
.addBack(that.options.itemContentSelector || that.theme.itemContentSelector)
.html(that.highlighter(text, item));
if(that.options.followLinkOnSelect) {
i.find('a').attr('href', self.itemLink(item));
}
i.find('a').attr('title', self.itemTitle(item));
if (text == self.$element.val()) {
i.addClass('active');
self.$element.data('active', item);
activeFound = true;
}
return i[0];
});
if (this.autoSelect && !activeFound) {
items.filter(':not(.dropdown-header)').first().addClass('active');
this.$element.data('active', items.first().data('value'));
}
this.$menu.html(items);
return this;
},
displayText: function (item) {
return typeof item !== 'undefined' && typeof item.name != 'undefined' ? item.name : item;
},
itemLink: function (item) {
return null;
},
itemTitle: function (item) {
return null;
},
next: function (event) {
var active = this.$menu.find('.active').removeClass('active');
var next = active.next();
if (!next.length) {
next = $(this.$menu.find($(this.options.item || this.theme.item).prop('tagName'))[0]);
}
while (next.hasClass('divider') || next.hasClass('dropdown-header')) {
next = next.next();
}
next.addClass('active');
// added for screen reader
var newVal = this.updater(next.data('value'));
if (this.changeInputOnMove) {
this.$element.val(this.displayText(newVal) || newVal);
}
},
prev: function (event) {
var active = this.$menu.find('.active').removeClass('active');
var prev = active.prev();
if (!prev.length) {
prev = this.$menu.find($(this.options.item || this.theme.item).prop('tagName')).last();
}
while (prev.hasClass('divider') || prev.hasClass('dropdown-header')) {
prev = prev.prev();
}
prev.addClass('active');
// added for screen reader
var newVal = this.updater(prev.data('value'));
if (this.changeInputOnMove) {
this.$element.val(this.displayText(newVal) || newVal);
}
},
listen: function () {
this.$element
.on('focus.bootstrap3Typeahead', $.proxy(this.focus, this))
.on('blur.bootstrap3Typeahead', $.proxy(this.blur, this))
.on('keypress.bootstrap3Typeahead', $.proxy(this.keypress, this))
.on('propertychange.bootstrap3Typeahead input.bootstrap3Typeahead', $.proxy(this.input, this))
.on('keyup.bootstrap3Typeahead', $.proxy(this.keyup, this));
if (this.eventSupported('keydown')) {
this.$element.on('keydown.bootstrap3Typeahead', $.proxy(this.keydown, this));
}
var itemTagName = $(this.options.item || this.theme.item).prop('tagName');
if ('ontouchstart' in document.documentElement && 'onmousemove' in document.documentElement) {
this.$menu
.on('touchstart', itemTagName, $.proxy(this.touchstart, this))
.on('touchend', itemTagName, $.proxy(this.click, this))
.on('click', $.proxy(this.click, this))
.on('mouseenter', itemTagName, $.proxy(this.mouseenter, this))
.on('mouseleave', itemTagName, $.proxy(this.mouseleave, this))
.on('mousedown', $.proxy(this.mousedown,this));
} else if ('ontouchstart' in document.documentElement) {
this.$menu
.on('touchstart', itemTagName, $.proxy(this.touchstart, this))
.on('touchend', itemTagName, $.proxy(this.click, this));
} else {
this.$menu
.on('click', $.proxy(this.click, this))
.on('mouseenter', itemTagName, $.proxy(this.mouseenter, this))
.on('mouseleave', itemTagName, $.proxy(this.mouseleave, this))
.on('mousedown', $.proxy(this.mousedown, this));
}
},
destroy: function () {
this.$element.data('typeahead', null);
this.$element.data('active', null);
this.$element
.unbind('focus.bootstrap3Typeahead')
.unbind('blur.bootstrap3Typeahead')
.unbind('keypress.bootstrap3Typeahead')
.unbind('propertychange.bootstrap3Typeahead input.bootstrap3Typeahead')
.unbind('keyup.bootstrap3Typeahead');
if (this.eventSupported('keydown')) {
this.$element.unbind('keydown.bootstrap3-typeahead');
}
this.$menu.remove();
this.destroyed = true;
},
eventSupported: function (eventName) {
var isSupported = eventName in this.$element;
if (!isSupported) {
this.$element.setAttribute(eventName, 'return;');
isSupported = typeof this.$element[eventName] === 'function';
}
return isSupported;
},
move: function (e) {
if (!this.shown) {
return;
}
switch (e.keyCode) {
case 9: // tab
case 13: // enter
case 27: // escape
e.preventDefault();
break;
case 38: // up arrow
// with the shiftKey (this is actually the left parenthesis)
if (e.shiftKey) {
return;
}
e.preventDefault();
this.prev();
break;
case 40: // down arrow
// with the shiftKey (this is actually the right parenthesis)
if (e.shiftKey) {
return;
}
e.preventDefault();
this.next();
break;
}
},
keydown: function (e) {
/**
* Prevent to make an ajax call while copying and pasting.
*
* @author Simone Sacchi
* @version 2018/01/18
*/
if (e.keyCode === 17) { // ctrl
return;
}
this.keyPressed = true;
this.suppressKeyPressRepeat = ~$.inArray(e.keyCode, [40, 38, 9, 13, 27]);
if (!this.shown && e.keyCode == 40) {
this.lookup();
} else {
this.move(e);
}
},
keypress: function (e) {
if (this.suppressKeyPressRepeat) {
return;
}
this.move(e);
},
input: function (e) {
// This is a fixed for IE10/11 that fires the input event when a placehoder is changed
// (https://connect.microsoft.com/IE/feedback/details/810538/ie-11-fires-input-event-on-focus)
var currentValue = this.$element.val() || this.$element.text();
if (this.value !== currentValue) {
this.value = currentValue;
this.lookup();
}
},
keyup: function (e) {
if (this.destroyed) {
return;
}
switch (e.keyCode) {
case 40: // down arrow
case 38: // up arrow
case 16: // shift
case 17: // ctrl
case 18: // alt
break;
case 9: // tab
if (!this.shown || (this.showHintOnFocus && !this.keyPressed)) {
return;
}
this.select();
break;
case 13: // enter
if (!this.shown) {
return;
}
this.select();
break;
case 27: // escape
if (!this.shown) {
return;
}
this.hide();
break;
}
},
focus: function (e) {
if (!this.focused) {
this.focused = true;
this.keyPressed = false;
if (this.options.showHintOnFocus && this.skipShowHintOnFocus !== true) {
if (this.options.showHintOnFocus === 'all') {
this.lookup('');
} else {
this.lookup();
}
}
}
if (this.skipShowHintOnFocus) {
this.skipShowHintOnFocus = false;
}
},
blur: function (e) {
if (!this.mousedover && !this.mouseddown && this.shown) {
if (this.selectOnBlur) {
this.select();
}
this.hide();
this.focused = false;
this.keyPressed = false;
} else if (this.mouseddown) {
// This is for IE that blurs the input when user clicks on scroll.
// We set the focus back on the input and prevent the lookup to occur again
this.skipShowHintOnFocus = true;
this.$element.focus();
this.mouseddown = false;
}
},
click: function (e) {
e.preventDefault();
this.skipShowHintOnFocus = true;
this.select();
this.$element.focus();
this.hide();
},
mouseenter: function (e) {
this.mousedover = true;
this.$menu.find('.active').removeClass('active');
$(e.currentTarget).addClass('active');
},
mouseleave: function (e) {
this.mousedover = false;
if (! this.selectOnBlur) {
this.$menu.find('.active').removeClass('active');
}
if (!this.focused && this.shown) {
this.hide();
}
},
/**
* We track the mousedown for IE. When clicking on the menu scrollbar, IE makes the input blur thus hiding the menu.
*/
mousedown: function (e) {
this.mouseddown = true;
this.$menu.one('mouseup', function (e) {
// IE won't fire this, but FF and Chrome will so we reset our flag for them here
this.mouseddown = false;
}.bind(this));
},
touchstart: function (e) {
e.preventDefault();
this.$menu.find('.active').removeClass('active');
$(e.currentTarget).addClass('active');
},
touchend: function (e) {
e.preventDefault();
this.select();
this.$element.focus();
}
};
/* TYPEAHEAD PLUGIN DEFINITION
* =========================== */
var old = $.fn.typeahead;
$.fn.typeahead = function (option) {
var arg = arguments;
if (typeof option == 'string' && option == 'getActive') {
return this.data('active');
}
return this.each(function () {
var $this = $(this);
var data = $this.data('typeahead');
var options = typeof option == 'object' && option;
if (!data) {
$this.data('typeahead', (data = new Typeahead(this, options)));
}
if (typeof option == 'string' && data[option]) {
if (arg.length > 1) {
data[option].apply(data, Array.prototype.slice.call(arg, 1));
} else {
data[option]();
}
}
});
};
Typeahead.defaults = {
source: [],
items: 8,
minLength: 1,
scrollHeight: 0,
autoSelect: true,
afterSelect: $.noop,
afterEmptySelect: $.noop,
addItem: false,
followLinkOnSelect: false,
delay: 0,
separator: 'category',
changeInputOnSelect: true,
changeInputOnMove: true,
openLinkInNewTab: false,
selectOnBlur: true,
showCategoryHeader: true,
theme: "bootstrap3",
themes: {
bootstrap3: {
menu: '<ul class="typeahead dropdown-menu" role="listbox"></ul>',
item: '<li><a class="dropdown-item" href="#" role="option"></a></li>',
itemContentSelector: "a",
headerHtml: '<li class="dropdown-header"></li>',
headerDivider: '<li class="divider" role="separator"></li>'
},
bootstrap4: {
menu: '<div class="typeahead dropdown-menu" role="listbox"></div>',
item: '<button class="dropdown-item" role="option"></button>',
itemContentSelector: '.dropdown-item',
headerHtml: '<h6 class="dropdown-header"></h6>',
headerDivider: '<div class="dropdown-divider"></div>'
}
}
};
$.fn.typeahead.Constructor = Typeahead;
/* TYPEAHEAD NO CONFLICT
* =================== */
$.fn.typeahead.noConflict = function () {
$.fn.typeahead = old;
return this;
};
/* TYPEAHEAD DATA-API
* ================== */
$(document).on('focus.typeahead.data-api', '[data-provide="typeahead"]', function (e) {
var $this = $(this);
if ($this.data('typeahead')) {
return;
}
$this.typeahead($this.data());
});
}));