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一个基于 Bootstrap 深度定制开源前端实践方案，帮助你快速构建现代跨屏应用。
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JavaScript
/* ========================================================================
* Chosen: chosen.js [version 1.1.0]
* https://github.com/harvesthq/chosen
*
* Chosen, a Select Box Enhancer for jQuery and Prototype
* by Patrick Filler for Harvest, http://getharvest.com
*
* ZUI: The file has been changed in ZUI. It will not keep update with the
* official version in the future.
* http://zui.sexy
* ========================================================================
* Copyright (c) 2011 Harvest http://getharvest.com
* MIT License, https://github.com/harvesthq/chosen/blob/master/LICENSE.md
* ========================================================================
* Improvement in ZUI:
* 1. New option 'drop_direction': 'auto' | 'top' | 'bottom';
* 2. Enhance the search experience, support search items by custom data
* with 'data-keys=*' attribute in option;
* 3. ‘middle_highlight’ option can make hightlight item in the middle of
* the dropdown menu;
* 4. 'compact_search' option
* ======================================================================== */
/*!
Chosen, a Select Box Enhancer for jQuery and Prototype
by Patrick Filler for Harvest, http://getharvest.com
Version 1.1.0
Full source at https://github.com/harvesthq/chosen
Copyright (c) 2011 Harvest http://getharvest.com
MIT License, https://github.com/harvesthq/chosen/blob/master/LICENSE.md
*/
(function() {
var $, AbstractChosen, Chosen, SelectParser, _ref,
__hasProp = {}.hasOwnProperty,
__extends = function(child, parent) {
for(var key in parent) {
if(__hasProp.call(parent, key)) child[key] = parent[key];
}
function ctor() {
this.constructor = child;
}
ctor.prototype = parent.prototype;
child.prototype = new ctor();
child.__super__ = parent.prototype;
return child;
};
var LANGUAGE = {
zh_cn: {
no_results_text: "没有找到"
},
zh_tw: {
no_results_text: "沒有找到"
},
en: {
no_results_text: "No results match"
}
};
SelectParser = (function() {
function SelectParser() {
this.options_index = 0;
this.parsed = [];
}
SelectParser.prototype.add_node = function(child) {
if(child.nodeName.toUpperCase() === "OPTGROUP") {
return this.add_group(child);
} else {
return this.add_option(child);
}
};
SelectParser.prototype.add_group = function(group) {
var group_position, option, _i, _len, _ref, _results;
group_position = this.parsed.length;
this.parsed.push({
array_index: group_position,
group: true,
label: this.escapeExpression(group.label),
children: 0,
disabled: group.disabled,
title: group.title,
search_keys: ($.trim(group.getAttribute('data-keys') || '')).replace(/,/g, ' ')
});
_ref = group.childNodes;
_results = [];
for(_i = 0, _len = _ref.length; _i < _len; _i++) {
option = _ref[_i];
_results.push(this.add_option(option, group_position, group.disabled));
}
return _results;
};
SelectParser.prototype.add_option = function(option, group_position, group_disabled) {
if(option.nodeName.toUpperCase() === "OPTION") {
if(option.text !== "") {
if(group_position != null) {
this.parsed[group_position].children += 1;
}
this.parsed.push({
array_index: this.parsed.length,
options_index: this.options_index,
value: option.value,
text: option.text,
title: option.title,
html: option.innerHTML,
selected: option.selected,
disabled: group_disabled === true ? group_disabled : option.disabled,
group_array_index: group_position,
classes: option.className,
style: option.style.cssText,
data: option.getAttribute('data-data'),
search_keys: ($.trim(option.getAttribute('data-keys') || '') + option.value).replace(/,/, ' ')
});
} else {
this.parsed.push({
array_index: this.parsed.length,
options_index: this.options_index,
empty: true
});
}
return this.options_index += 1;
}
};
SelectParser.prototype.escapeExpression = function(text) {
var map, unsafe_chars;
if((text == null) || text === false) {
return "";
}
if(!/[\&\<\>\"\'\`]/.test(text)) {
return text;
}
map = {
"<": "<",
">": ">",
'"': """,
"'": "'",
"`": "`"
};
unsafe_chars = /&(?!\w+;)|[\<\>\"\'\`]/g;
return text.replace(unsafe_chars, function(chr) {
return map[chr] || "&";
});
};
return SelectParser;
})();
SelectParser.select_to_array = function(select) {
var child, parser, _i, _len, _ref;
parser = new SelectParser();
_ref = select.childNodes;
for(_i = 0, _len = _ref.length; _i < _len; _i++) {
child = _ref[_i];
parser.add_node(child);
}
return parser.parsed;
};
AbstractChosen = (function() {
function AbstractChosen(form_field, options) {
this.form_field = form_field;
this.options = options != null ? options : {};
if(!AbstractChosen.browser_is_supported()) {
return;
}
this.lang = LANGUAGE[this.options.lang || ($.zui.clientLang ? $.zui.clientLang() : 'zh_cn')];
this.is_multiple = this.form_field.multiple;
this.set_default_text();
this.set_default_values();
this.setup();
this.set_up_html();
this.register_observers();
}
AbstractChosen.prototype.set_default_values = function() {
var _this = this;
this.click_test_action = function(evt) {
return _this.test_active_click(evt);
};
this.activate_action = function(evt) {
return _this.activate_field(evt);
};
this.active_field = false;
this.mouse_on_container = false;
this.results_showing = false;
this.result_highlighted = null;
this.allow_single_deselect = (this.options.allow_single_deselect != null) && (this.form_field.options[0] != null) && this.form_field.options[0].text === "" ? this.options.allow_single_deselect : false;
this.disable_search_threshold = this.options.disable_search_threshold || 0;
this.disable_search = this.options.disable_search || false;
this.enable_split_word_search = this.options.enable_split_word_search != null ? this.options.enable_split_word_search : true;
this.group_search = this.options.group_search != null ? this.options.group_search : true;
this.search_contains = this.options.search_contains || false;
this.single_backstroke_delete = this.options.single_backstroke_delete != null ? this.options.single_backstroke_delete : true;
this.max_selected_options = this.options.max_selected_options || Infinity;
this.drop_direction = this.options.drop_direction || 'auto';
this.middle_highlight = this.options.middle_highlight;
this.compact_search = this.options.compact_search || false;
this.inherit_select_classes = this.options.inherit_select_classes || false;
this.display_selected_options = this.options.display_selected_options != null ? this.options.display_selected_options : true;
return this.display_disabled_options = this.options.display_disabled_options != null ? this.options.display_disabled_options : true;
};
AbstractChosen.prototype.set_default_text = function() {
if(this.form_field.getAttribute("data-placeholder")) {
this.default_text = this.form_field.getAttribute("data-placeholder");
} else if(this.is_multiple) {
this.default_text = this.options.placeholder_text_multiple || this.options.placeholder_text || AbstractChosen.default_multiple_text;
} else {
this.default_text = this.options.placeholder_text_single || this.options.placeholder_text || AbstractChosen.default_single_text;
}
return this.results_none_found = this.form_field.getAttribute("data-no_results_text") || this.options.no_results_text || this.lang.no_results_text || AbstractChosen.default_no_result_text;
};
AbstractChosen.prototype.mouse_enter = function() {
return this.mouse_on_container = true;
};
AbstractChosen.prototype.mouse_leave = function() {
return this.mouse_on_container = false;
};
AbstractChosen.prototype.input_focus = function(evt) {
var _this = this;
if(this.is_multiple) {
if(!this.active_field) {
return setTimeout((function() {
return _this.container_mousedown();
}), 50);
}
} else {
if(!this.active_field) {
return this.activate_field();
}
}
};
AbstractChosen.prototype.input_blur = function(evt) {
var _this = this;
if(!this.mouse_on_container) {
this.active_field = false;
return setTimeout((function() {
return _this.blur_test();
}), 100);
}
};
AbstractChosen.prototype.results_option_build = function(options) {
var content, data, _i, _len, _ref;
content = '';
_ref = this.results_data;
for(_i = 0, _len = _ref.length; _i < _len; _i++) {
data = _ref[_i];
if(data.group) {
content += this.result_add_group(data);
} else {
content += this.result_add_option(data);
}
if(options != null ? options.first : void 0) {
if(data.selected && this.is_multiple) {
this.choice_build(data);
} else if(data.selected && !this.is_multiple) {
this.single_set_selected_text(data.text);
}
}
}
return content;
};
AbstractChosen.prototype.result_add_option = function(option) {
var classes, option_el;
if(!option.search_match) {
return '';
}
if(!this.include_option_in_results(option)) {
return '';
}
classes = [];
if(!option.disabled && !(option.selected && this.is_multiple)) {
classes.push("active-result");
}
if(option.disabled && !(option.selected && this.is_multiple)) {
classes.push("disabled-result");
}
if(option.selected) {
classes.push("result-selected");
}
if(option.group_array_index != null) {
classes.push("group-option");
}
if(option.classes !== "") {
classes.push(option.classes);
}
option_el = document.createElement("li");
option_el.className = classes.join(" ");
option_el.style.cssText = option.style;
option_el.title = option.title;
option_el.setAttribute("data-option-array-index", option.array_index);
option_el.setAttribute("data-data", option.data);
option_el.innerHTML = option.search_text;
return this.outerHTML(option_el);
};
AbstractChosen.prototype.result_add_group = function(group) {
var group_el;
if(!(group.search_match || group.group_match)) {
return '';
}
if(!(group.active_options > 0)) {
return '';
}
group_el = document.createElement("li");
group_el.className = "group-result";
group_el.title = group.title;
group_el.innerHTML = group.search_text;
return this.outerHTML(group_el);
};
AbstractChosen.prototype.results_update_field = function() {
this.set_default_text();
if(!this.is_multiple) {
this.results_reset_cleanup();
}
this.result_clear_highlight();
this.results_build();
if(this.results_showing) {
return this.winnow_results();
}
};
AbstractChosen.prototype.reset_single_select_options = function() {
var result, _i, _len, _ref, _results;
_ref = this.results_data;
_results = [];
for(_i = 0, _len = _ref.length; _i < _len; _i++) {
result = _ref[_i];
if(result.selected) {
_results.push(result.selected = false);
} else {
_results.push(void 0);
}
}
return _results;
};
AbstractChosen.prototype.results_toggle = function() {
if(this.results_showing) {
return this.results_hide();
} else {
return this.results_show();
}
};
AbstractChosen.prototype.results_search = function(evt) {
if(this.results_showing) {
return this.winnow_results(1);
} else {
return this.results_show();
}
};
AbstractChosen.prototype.winnow_results = function(canMiddleHighlight) {
var escapedSearchText, option, regex, regexAnchor, results, results_group, searchText, startpos, text, zregex, _i, _len, _ref;
this.no_results_clear();
results = 0;
searchText = this.get_search_text();
escapedSearchText = searchText.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&");
regexAnchor = this.search_contains ? "" : "^";
regex = new RegExp(regexAnchor + escapedSearchText, 'i');
zregex = new RegExp(escapedSearchText, 'i');
_ref = this.results_data;
for(_i = 0, _len = _ref.length; _i < _len; _i++) {
option = _ref[_i];
option.search_match = false;
results_group = null;
if(this.include_option_in_results(option)) {
if(option.group) {
option.group_match = false;
option.active_options = 0;
}
if((option.group_array_index != null) && this.results_data[option.group_array_index]) {
results_group = this.results_data[option.group_array_index];
if(results_group.active_options === 0 && results_group.search_match) {
results += 1;
}
results_group.active_options += 1;
}
if(!(option.group && !this.group_search)) {
option.search_text = option.group ? option.label : option.html;
option.search_keys_match = this.search_string_match(option.search_keys, regex);
option.search_text_match = this.search_string_match(option.search_text, regex);
option.search_match = option.search_text_match || option.search_keys_match;
if(option.search_match && !option.group) {
results += 1;
}
if(option.search_match) {
if(option.search_text_match && option.search_text.length) {
startpos = option.search_text.search(zregex);
text = option.search_text.substr(0, startpos + searchText.length) + '</em>' + option.search_text.substr(startpos + searchText.length);
option.search_text = text.substr(0, startpos) + '<em>' + text.substr(startpos);
} else if(option.search_keys_match && option.search_keys.length) {
startpos = option.search_keys.search(zregex);
text = option.search_keys.substr(0, startpos + searchText.length) + '</em>' + option.search_keys.substr(startpos + searchText.length);
option.search_text += ' <small style="opacity: 0.7">' + text.substr(0, startpos) + '<em>' + text.substr(startpos) + '</small>';
}
if(results_group != null) {
results_group.group_match = true;
}
} else if((option.group_array_index != null) && this.results_data[option.group_array_index].search_match) {
option.search_match = true;
}
}
}
}
this.result_clear_highlight();
if(results < 1 && searchText.length) {
this.update_results_content("");
return this.no_results(searchText);
} else {
this.update_results_content(this.results_option_build());
return this.winnow_results_set_highlight(canMiddleHighlight);
}
};
AbstractChosen.prototype.search_string_match = function(search_string, regex) {
var part, parts, _i, _len;
if(regex.test(search_string)) {
return true;
} else if(this.enable_split_word_search && (search_string.indexOf(" ") >= 0 || search_string.indexOf("[") === 0)) {
parts = search_string.replace(/\[|\]/g, "").split(" ");
if(parts.length) {
for(_i = 0, _len = parts.length; _i < _len; _i++) {
part = parts[_i];
if(regex.test(part)) {
return true;
}
}
}
}
};
AbstractChosen.prototype.choices_count = function() {
var option, _i, _len, _ref;
if(this.selected_option_count != null) {
return this.selected_option_count;
}
this.selected_option_count = 0;
_ref = this.form_field.options;
for(_i = 0, _len = _ref.length; _i < _len; _i++) {
option = _ref[_i];
if(option.selected && option.value != '') {
this.selected_option_count += 1;
}
}
return this.selected_option_count;
};
AbstractChosen.prototype.choices_click = function(evt) {
evt.preventDefault();
if(!(this.results_showing || this.is_disabled)) {
return this.results_show();
}
};
AbstractChosen.prototype.keyup_checker = function(evt) {
var stroke, _ref;
stroke = (_ref = evt.which) != null ? _ref : evt.keyCode;
this.search_field_scale();
switch(stroke) {
case 8:
if(this.is_multiple && this.backstroke_length < 1 && this.choices_count() > 0) {
return this.keydown_backstroke();
} else if(!this.pending_backstroke) {
this.result_clear_highlight();
return this.results_search();
}
break;
case 13:
evt.preventDefault();
if(this.results_showing) {
return this.result_select(evt);
}
break;
case 27:
if(this.results_showing) {
this.results_hide();
}
return true;
case 9:
case 38:
case 40:
case 16:
case 91:
case 17:
break;
default:
return this.results_search();
}
};
AbstractChosen.prototype.clipboard_event_checker = function(evt) {
var _this = this;
return setTimeout((function() {
return _this.results_search();
}), 50);
};
AbstractChosen.prototype.container_width = function() {
if (this.options.width != null) {
return this.options.width;
} else if (this.form_field && this.form_field.classList && this.form_field.classList.contains('form-control')) {
return '100%';
} else {
return "" + this.form_field.offsetWidth + "px";
}
};
AbstractChosen.prototype.include_option_in_results = function(option) {
if(this.is_multiple && (!this.display_selected_options && option.selected)) {
return false;
}
if(!this.display_disabled_options && option.disabled) {
return false;
}
if(option.empty) {
return false;
}
return true;
};
AbstractChosen.prototype.search_results_touchstart = function(evt) {
this.touch_started = true;
return this.search_results_mouseover(evt);
};
AbstractChosen.prototype.search_results_touchmove = function(evt) {
this.touch_started = false;
return this.search_results_mouseout(evt);
};
AbstractChosen.prototype.search_results_touchend = function(evt) {
if(this.touch_started) {
return this.search_results_mouseup(evt);
}
};
AbstractChosen.prototype.outerHTML = function(element) {
var tmp;
if(element.outerHTML) {
return element.outerHTML;
}
tmp = document.createElement("div");
tmp.appendChild(element);
return tmp.innerHTML;
};
AbstractChosen.browser_is_supported = function() {
if(window.navigator.appName === "Microsoft Internet Explorer") {
return document.documentMode >= 8;
}
if(/iP(od|hone)/i.test(window.navigator.userAgent)) {
return false;
}
if(/Android/i.test(window.navigator.userAgent)) {
if(/Mobile/i.test(window.navigator.userAgent)) {
return false;
}
}
return true;
};
AbstractChosen.default_multiple_text = "";
AbstractChosen.default_single_text = "";
AbstractChosen.default_no_result_text = "No results match";
return AbstractChosen;
})();
$ = jQuery;
$.fn.extend({
chosen: function(options) {
if(!AbstractChosen.browser_is_supported()) {
return this;
}
return this.each(function(input_field) {
var $this, chosen;
$this = $(this);
chosen = $this.data('chosen');
if(options === 'destroy' && chosen) {
chosen.destroy();
} else if(!chosen) {
$this.data('chosen', new Chosen(this, options));
}
});
}
});
Chosen = (function(_super) {
__extends(Chosen, _super);
function Chosen() {
_ref = Chosen.__super__.constructor.apply(this, arguments);
return _ref;
}
Chosen.prototype.setup = function() {
this.form_field_jq = $(this.form_field);
this.current_selectedIndex = this.form_field.selectedIndex;
return this.is_rtl = this.form_field_jq.hasClass("chosen-rtl");
};
Chosen.prototype.set_up_html = function() {
var container_classes, container_props;
container_classes = ["chosen-container"];
container_classes.push("chosen-container-" + (this.is_multiple ? "multi" : "single"));
if(this.inherit_select_classes && this.form_field.className) {
container_classes.push(this.form_field.className);
}
if(this.is_rtl) {
container_classes.push("chosen-rtl");
}
var strClass = this.form_field.getAttribute('data-css-class');
if(strClass) {
container_classes.push(strClass);
}
container_props = {
'class': container_classes.join(' '),
'style': "width: " + (this.container_width()) + ";",
'title': this.form_field.title
};
if(this.form_field.id.length) {
container_props.id = this.form_field.id.replace(/[^\w]/g, '_') + "_chosen";
}
this.container = $("<div />", container_props);
if(this.is_multiple) {
this.container.html('<ul class="chosen-choices"><li class="search-field"><input type="text" value="' + this.default_text + '" class="default" autocomplete="off" style="width:25px;" /></li></ul><div class="chosen-drop"><ul class="chosen-results"></ul></div>');
} else {
this.container.html('<a class="chosen-single chosen-default" tabindex="-1"><span>' + this.default_text + '</span><div><b></b></div><div class="chosen-search"><input type="text" autocomplete="off" /></div></a><div class="chosen-drop"><ul class="chosen-results"></ul></div>');
if (this.compact_search) {
this.container.addClass('chosen-compact').find('.chosen-search').appendTo(this.container.find('.chosen-single'));
} else {
this.container.find('.chosen-search').prependTo(this.container.find('.chosen-drop'));
}
}
this.form_field_jq.hide().after(this.container);
this.dropdown = this.container.find('div.chosen-drop').first();
this.search_field = this.container.find('input').first();
this.search_results = this.container.find('ul.chosen-results').first();
this.search_field_scale();
this.search_no_results = this.container.find('li.no-results').first();
if(this.is_multiple) {
this.search_choices = this.container.find('ul.chosen-choices').first();
this.search_container = this.container.find('li.search-field').first();
} else {
this.search_container = this.container.find('div.chosen-search').first();
this.selected_item = this.container.find('.chosen-single').first();
}
if(this.options.drop_width) {
this.dropdown.css('width', this.options.drop_width).addClass('chosen-drop-size-limited');
}
this.results_build();
this.set_tab_index();
this.set_label_behavior();
return this.form_field_jq.trigger("chosen:ready", {
chosen: this
});
};
Chosen.prototype.register_observers = function() {
var _this = this;
this.container.bind('mousedown.chosen', function(evt) {
_this.container_mousedown(evt);
});
this.container.bind('mouseup.chosen', function(evt) {
_this.container_mouseup(evt);
});
this.container.bind('mouseenter.chosen', function(evt) {
_this.mouse_enter(evt);
});
this.container.bind('mouseleave.chosen', function(evt) {
_this.mouse_leave(evt);
});
this.search_results.bind('mouseup.chosen', function(evt) {
_this.search_results_mouseup(evt);
});
this.search_results.bind('mouseover.chosen', function(evt) {
_this.search_results_mouseover(evt);
});
this.search_results.bind('mouseout.chosen', function(evt) {
_this.search_results_mouseout(evt);
});
this.search_results.bind('mousewheel.chosen DOMMouseScroll.chosen', function(evt) {
_this.search_results_mousewheel(evt);
});
this.search_results.bind('touchstart.chosen', function(evt) {
_this.search_results_touchstart(evt);
});
this.search_results.bind('touchmove.chosen', function(evt) {
_this.search_results_touchmove(evt);
});
this.search_results.bind('touchend.chosen', function(evt) {
_this.search_results_touchend(evt);
});
this.form_field_jq.bind("chosen:updated.chosen", function(evt) {
_this.results_update_field(evt);
});
this.form_field_jq.bind("chosen:activate.chosen", function(evt) {
_this.activate_field(evt);
});
this.form_field_jq.bind("chosen:open.chosen", function(evt) {
_this.container_mousedown(evt);
});
this.form_field_jq.bind("chosen:close.chosen", function(evt) {
_this.input_blur(evt);
});
this.search_field.bind('blur.chosen', function(evt) {
_this.input_blur(evt);
});
this.search_field.bind('keyup.chosen', function(evt) {
_this.keyup_checker(evt);
});
this.search_field.bind('keydown.chosen', function(evt) {
_this.keydown_checker(evt);
});
this.search_field.bind('focus.chosen', function(evt) {
_this.input_focus(evt);
});
this.search_field.bind('cut.chosen', function(evt) {
_this.clipboard_event_checker(evt);
});
this.search_field.bind('paste.chosen', function(evt) {
_this.clipboard_event_checker(evt);
});
if(this.is_multiple) {
return this.search_choices.bind('click.chosen', function(evt) {
_this.choices_click(evt);
});
} else {
return this.container.bind('click.chosen', function(evt) {
evt.preventDefault();
});
}
};
Chosen.prototype.destroy = function() {
$(this.container[0].ownerDocument).unbind("click.chosen", this.click_test_action);
if(this.search_field[0].tabIndex) {
this.form_field_jq[0].tabIndex = this.search_field[0].tabIndex;
}
this.container.remove();
this.form_field_jq.removeData('chosen');
return this.form_field_jq.show();
};
Chosen.prototype.search_field_disabled = function() {
this.is_disabled = this.form_field_jq[0].disabled;
if(this.is_disabled) {
this.container.addClass('chosen-disabled');
this.search_field[0].disabled = true;
if(!this.is_multiple) {
this.selected_item.unbind("focus.chosen", this.activate_action);
}
return this.close_field();
} else {
this.container.removeClass('chosen-disabled');
this.search_field[0].disabled = false;
if(!this.is_multiple) {
return this.selected_item.bind("focus.chosen", this.activate_action);
}
}
};
Chosen.prototype.container_mousedown = function(evt) {
if(!this.is_disabled) {
if(evt && evt.type === "mousedown" && !this.results_showing) {
evt.preventDefault();
}
if(!((evt != null) && ($(evt.target)).hasClass("search-choice-close"))) {
if(!this.active_field) {
if(this.is_multiple) {
this.search_field.val("");
}
$(this.container[0].ownerDocument).bind('click.chosen', this.click_test_action);
this.results_show();
} else if(!this.is_multiple && evt && (($(evt.target)[0] === this.selected_item[0]) || $(evt.target).parents("a.chosen-single").length)) {
evt.preventDefault();
this.results_toggle();
}
return this.activate_field();
}
}
};
Chosen.prototype.container_mouseup = function(evt) {
if(evt.target.nodeName === "ABBR" && !this.is_disabled) {
return this.results_reset(evt);
}
};
Chosen.prototype.search_results_mousewheel = function(evt) {
var delta;
if(evt.originalEvent) {
delta = -evt.originalEvent.wheelDelta || evt.originalEvent.detail;
}
if(delta != null) {
evt.preventDefault();
if(evt.type === 'DOMMouseScroll') {
delta = delta * 40;
}
return this.search_results.scrollTop(delta + this.search_results.scrollTop());
}
};
Chosen.prototype.blur_test = function(evt) {
if(!this.active_field && this.container.hasClass("chosen-container-active")) {
return this.close_field();
}
};
Chosen.prototype.close_field = function() {
$(this.container[0].ownerDocument).unbind("click.chosen", this.click_test_action);
this.active_field = false;
this.results_hide();
this.container.removeClass("chosen-container-active");
this.clear_backstroke();
this.show_search_field_default();
return this.search_field_scale();
};
Chosen.prototype.activate_field = function() {
this.container.addClass("chosen-container-active");
this.active_field = true;
this.search_field.val(this.search_field.val());
return this.search_field.focus();
};
Chosen.prototype.test_active_click = function(evt) {
var active_container;
active_container = $(evt.target).closest('.chosen-container');
if(active_container.length && this.container[0] === active_container[0]) {
return this.active_field = true;
} else {
return this.close_field();
}
};
Chosen.prototype.results_build = function() {
this.parsing = true;
this.selected_option_count = null;
this.results_data = SelectParser.select_to_array(this.form_field);
if(this.is_multiple) {
this.search_choices.find("li.search-choice").remove();
} else if(!this.is_multiple) {
this.single_set_selected_text();
if(this.disable_search || this.form_field.options.length <= this.disable_search_threshold) {
this.search_field[0].readOnly = true;
this.container.addClass("chosen-container-single-nosearch");
this.container.removeClass('chosen-with-search');
} else {
this.search_field[0].readOnly = false;
this.container.removeClass("chosen-container-single-nosearch");
this.container.addClass('chosen-with-search');
}
}
this.update_results_content(this.results_option_build({
first: true
}));
this.search_field_disabled();
this.show_search_field_default();
this.search_field_scale();
return this.parsing = false;
};
Chosen.prototype.result_do_highlight = function(el, canMiddleHighlight) {
var high_bottom, high_top, maxHeight, visible_bottom, visible_top, resultHeight, scrollTop = -1;
if(el.length) {
this.result_clear_highlight();
this.result_highlight = el;
this.result_highlight.addClass("highlighted");
maxHeight = parseInt(this.search_results.css("maxHeight"), 10);
resultHeight = this.result_highlight.outerHeight();
visible_top = this.search_results.scrollTop();
visible_bottom = maxHeight + visible_top;
high_top = this.result_highlight.position().top + this.search_results.scrollTop();
high_bottom = high_top + resultHeight;
if(this.middle_highlight && (canMiddleHighlight || this.middle_highlight === 'always')) {
scrollTop = Math.min(high_top - resultHeight, Math.max(0, high_top - (maxHeight - resultHeight)/2));
} else if(high_bottom >= visible_bottom) {
scrollTop = (high_bottom - maxHeight) > 0 ? high_bottom - maxHeight : 0;
} else if(high_top < visible_top) {
scrollTop = high_top;
}
if(scrollTop > -1) {
this.search_results.scrollTop(scrollTop);
} else if (this.result_highlight.scrollIntoView) {
this.result_highlight.scrollIntoView();
}
}
};
Chosen.prototype.result_clear_highlight = function() {
if(this.result_highlight) {
this.result_highlight.removeClass("highlighted");
}
return this.result_highlight = null;
};
Chosen.prototype.results_show = function() {
if(this.is_multiple && this.max_selected_options <= this.choices_count()) {
this.form_field_jq.trigger("chosen:maxselected", {
chosen: this
});
return false;
}
this.results_showing = true;
this.search_field.focus();
this.search_field.val(this.search_field.val());
var dropDirection = this.drop_direction;
if ($.isFunction(dropDirection))
{
dropDirection = dropDirection.call(this);
}
if(dropDirection === 'auto') {
if (!this.drop_directionFixed) {
var $drop = this.container.find('.chosen-drop');
var offset = this.container.offset();
if(offset.top + $drop.outerHeight() + 30 > $(window).height() + $(window).scrollTop()) {
dropDirection = 'up';
}
this.drop_directionFixed = dropDirection;
} else {
dropDirection = this.drop_directionFixed;
}
}
this.container.toggleClass('chosen-up', dropDirection === 'up').addClass("chosen-with-drop");
this.winnow_results(1);
return this.form_field_jq.trigger("chosen:showing_dropdown", {
chosen: this
});
};
Chosen.prototype.update_results_content = function(content) {
return this.search_results.html(content);
};
Chosen.prototype.results_hide = function() {
if(this.results_showing) {
this.result_clear_highlight();
this.container.removeClass("chosen-with-drop");
this.form_field_jq.trigger("chosen:hiding_dropdown", {
chosen: this
});
this.drop_directionFixed = 0;
}
return this.results_showing = false;
};
Chosen.prototype.set_tab_index = function(el) {
var ti;
if(this.form_field.tabIndex) {
ti = this.form_field.tabIndex;
this.form_field.tabIndex = -1;
return this.search_field[0].tabIndex = ti;
}
};
Chosen.prototype.set_label_behavior = function() {
var _this = this;
this.form_field_label = this.form_field_jq.parents("label");
if(!this.form_field_label.length && this.form_field.id.length) {
this.form_field_label = $("label[for='" + this.form_field.id + "']");
}
if(this.form_field_label.length > 0) {
return this.form_field_label.bind('click.chosen', function(evt) {
if(_this.is_multiple) {
return _this.container_mousedown(evt);
} else {
return _this.activate_field();
}
});
}
};
Chosen.prototype.show_search_field_default = function() {
if(this.is_multiple && this.choices_count() < 1 && !this.active_field) {
this.search_field.val(this.default_text);
return this.search_field.addClass("default");
} else {
this.search_field.val("");
return this.search_field.removeClass("default");
}
};
Chosen.prototype.search_results_mouseup = function(evt) {
var target;
target = $(evt.target).hasClass("active-result") ? $(evt.target) : $(evt.target).parents(".active-result").first();
if(target.length) {
this.result_highlight = target;
this.result_select(evt);
return this.search_field.focus();
}
};
Chosen.prototype.search_results_mouseover = function(evt) {
var target;
target = $(evt.target).hasClass("active-result") ? $(evt.target) : $(evt.target).parents(".active-result").first();
if(target) {
return this.result_do_highlight(target);
}
};
Chosen.prototype.search_results_mouseout = function(evt) {
if($(evt.target).hasClass("active-result" || $(evt.target).parents('.active-result').first())) {
return this.result_clear_highlight();
}
};
Chosen.prototype.choice_build = function(item) {
var choice, close_link,
_this = this;
choice = $('<li />', {
"class": "search-choice"
/// ZUI change begin
/// Set title to span with item value
/// }).html("<span>" + item.html + "</span>");
}).html("<span title='" + item.html + "'>" + item.html + "</span>");
/// ZUI change end
if(item.disabled) {
choice.addClass('search-choice-disabled');
} else {
close_link = $('<a />', {
"class": 'search-choice-close',
'data-option-array-index': item.array_index
});
close_link.bind('click.chosen', function(evt) {
return _this.choice_destroy_link_click(evt);
});
choice.append(close_link);
}
return this.search_container.before(choice);
};
Chosen.prototype.choice_destroy_link_click = function(evt) {
evt.preventDefault();
evt.stopPropagation();
if(!this.is_disabled) {
return this.choice_destroy($(evt.target));
}
};
Chosen.prototype.choice_destroy = function(link) {
if(this.result_deselect(link[0].getAttribute("data-option-array-index"))) {
this.show_search_field_default();
if(this.is_multiple && this.choices_count() > 0 && this.search_field.val().length < 1) {
this.results_hide();
}
link.parents('li').first().remove();
return this.search_field_scale();
}
};
Chosen.prototype.results_reset = function() {
this.reset_single_select_options();
this.form_field.options[0].selected = true;
this.single_set_selected_text();
this.show_search_field_default();
this.results_reset_cleanup();
this.form_field_jq.trigger("change");
if(this.active_field) {
return this.results_hide();
}
};
Chosen.prototype.results_reset_cleanup = function() {
this.current_selectedIndex = this.form_field.selectedIndex;
return this.selected_item.find("abbr").remove();
};
Chosen.prototype.result_select = function(evt) {
var high, item;
if(this.result_highlight) {
high = this.result_highlight;
this.result_clear_highlight();
if(this.is_multiple && this.max_selected_options <= this.choices_count()) {
this.form_field_jq.trigger("chosen:maxselected", {
chosen: this
});
return false;
}
if(this.is_multiple) {
high.removeClass("active-result");
} else {
this.reset_single_select_options();
}
item = this.results_data[high[0].getAttribute("data-option-array-index")];
item.selected = true;
this.form_field.options[item.options_index].selected = true;
this.selected_option_count = null;
if(this.is_multiple) {
this.choice_build(item);
} else {
this.single_set_selected_text(item.text);
}
if(!((evt.metaKey || evt.ctrlKey) && this.is_multiple)) {
this.results_hide();
}
this.search_field.val("");
if(this.is_multiple || this.form_field.selectedIndex !== this.current_selectedIndex) {
this.form_field_jq.trigger("change", {
'selected': this.form_field.options[item.options_index].value
});
}
this.current_selectedIndex = this.form_field.selectedIndex;
return this.search_field_scale();
}
};
Chosen.prototype.single_set_selected_text = function(text) {
if(text == null) {
text = this.default_text;
}
if(text === this.default_text) {
this.selected_item.addClass("chosen-default");
} else {
this.single_deselect_control_build();
this.selected_item.removeClass("chosen-default");
}
/// ZUI change begin
/// Change title with text
/// return this.selected_item.find("span").text(text); // old code
if (this.compact_search) {
this.search_field.attr('placeholder', text);
}
return this.selected_item.find("span").attr('title', text).text(text);
/// ZUI change end
};
Chosen.prototype.result_deselect = function(pos) {
var result_data;
result_data = this.results_data[pos];
if(!this.form_field.options[result_data.options_index].disabled) {
result_data.selected = false;
this.form_field.options[result_data.options_index].selected = false;
this.selected_option_count = null;
this.result_clear_highlight();
if(this.results_showing) {
this.winnow_results();
}
this.form_field_jq.trigger("change", {
deselected: this.form_field.options[result_data.options_index].value
});
this.search_field_scale();
return true;
} else {
return false;
}
};
Chosen.prototype.single_deselect_control_build = function() {
if(!this.allow_single_deselect) {
return;
}
if(!this.selected_item.find("abbr").length) {
this.selected_item.find("span").first().after("<abbr class=\"search-choice-close\"></abbr>");
}
return this.selected_item.addClass("chosen-single-with-deselect");