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chosen.jquery.js 45.28 KiB
(function() {
var $, AbstractChosen, Chosen, SelectParser, _ref,
__bind = function(fn, me){ return function(){ return fn.apply(me, arguments); }; },
__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; };
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),
title: group.title ? group.title : void 0,
children: 0,
disabled: group.disabled,
classes: group.className
});
_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,
html: option.innerHTML,
title: option.title ? option.title : void 0,
selected: option.selected,
disabled: group_disabled === true ? group_disabled : option.disabled,
group_array_index: group_position,
group_label: group_position != null ? this.parsed[group_position].label : null,
classes: option.className,
style: option.style.cssText
});
} 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 : {};
this.label_click_handler = __bind(this.label_click_handler, this);
if (!AbstractChosen.browser_is_supported()) {
return;
}
this.is_multiple = this.form_field.multiple;
this.set_default_text();
this.set_default_values();
this.setup();
this.set_up_html();
this.register_observers();
this.on_ready();
}
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.is_rtl = this.options.rtl || /\bchosen-rtl\b/.test(this.form_field.className);
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.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;
this.display_disabled_options = this.options.display_disabled_options != null ? this.options.display_disabled_options : true;
this.include_group_label_in_selected = this.options.include_group_label_in_selected || false;
this.max_shown_results = this.options.max_shown_results || Number.POSITIVE_INFINITY;
this.case_sensitive_search = this.options.case_sensitive_search || false;
return this.hide_results_on_select = this.options.hide_results_on_select != null ? this.options.hide_results_on_select : 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;
}
this.default_text = this.escape_html(this.default_text);
return this.results_none_found = this.form_field.getAttribute("data-no_results_text") || this.options.no_results_text || AbstractChosen.default_no_result_text;
};
AbstractChosen.prototype.choice_label = function(item) {
if (this.include_group_label_in_selected && (item.group_label != null)) {
return "<b class='group-name'>" + item.group_label + "</b>" + item.html;
} else {
return item.html;
}
};
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.label_click_handler = function(evt) {
if (this.is_multiple) { return this.container_mousedown(evt);
} else {
return this.activate_field();
}
};
AbstractChosen.prototype.results_option_build = function(options) {
var content, data, data_content, shown_results, _i, _len, _ref;
content = '';
shown_results = 0;
_ref = this.results_data;
for (_i = 0, _len = _ref.length; _i < _len; _i++) {
data = _ref[_i];
data_content = '';
if (data.group) {
data_content = this.result_add_group(data);
} else {
data_content = this.result_add_option(data);
}
if (data_content !== '') {
shown_results++;
content += data_content;
}
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(this.choice_label(data));
}
}
if (shown_results >= this.max_shown_results) {
break;
}
}
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.setAttribute("data-option-array-index", option.array_index);
option_el.innerHTML = option.search_text;
if (option.title) {
option_el.title = option.title;
}
return this.outerHTML(option_el); };
AbstractChosen.prototype.result_add_group = function(group) {
var classes, group_el;
if (!(group.search_match || group.group_match)) {
return '';
}
if (!(group.active_options > 0)) {
return '';
}
classes = [];
classes.push("group-result");
if (group.classes) {
classes.push(group.classes);
}
group_el = document.createElement("li");
group_el.className = classes.join(" ");
group_el.innerHTML = group.search_text;
if (group.title) {
group_el.title = group.title;
}
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();
} else {
return this.results_show();
}
};
AbstractChosen.prototype.winnow_results = function() {
var escapedSearchText, highlightRegex, option, regex, results, results_group, searchText, startpos, text, _i, _len, _ref;
this.no_results_clear(); results = 0;
searchText = this.get_search_text();
escapedSearchText = searchText.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&");
regex = this.get_search_regex(escapedSearchText);
highlightRegex = this.get_highlight_regex(escapedSearchText);
_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;
}
option.search_text = option.group ? option.label : option.html;
if (!(option.group && !this.group_search)) {
option.search_match = this.search_string_match(option.search_text, regex);
if (option.search_match && !option.group) {
results += 1;
}
if (option.search_match) {
if (searchText.length) {
startpos = option.search_text.search(highlightRegex);
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);
}
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();
}
};
AbstractChosen.prototype.get_search_regex = function(escaped_search_string) {
var regex_anchor, regex_flag;
regex_anchor = this.search_contains ? "" : "^";
regex_flag = this.case_sensitive_search ? "" : "i";
return new RegExp(regex_anchor + escaped_search_string, regex_flag);
};
AbstractChosen.prototype.get_highlight_regex = function(escaped_search_string) {
var regex_anchor, regex_flag;
regex_anchor = this.search_contains ? "" : "\\b";
regex_flag = this.case_sensitive_search ? "" : "i";
return new RegExp(regex_anchor + escaped_search_string, regex_flag);
};
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) {
this.selected_option_count += 1;
}
}
return this.selected_option_count;
};
AbstractChosen.prototype.choices_click = function(evt) {
evt.preventDefault();
this.activate_field();
if (!(this.results_showing || this.is_disabled)) {
return this.results_show();
}
};
AbstractChosen.prototype.keydown_checker = function(evt) {
var stroke, _ref;
stroke = (_ref = evt.which) != null ? _ref : evt.keyCode;
this.search_field_scale();
if (stroke !== 8 && this.pending_backstroke) {
this.clear_backstroke();
}
switch (stroke) {
case 8:
this.backstroke_length = this.get_search_field_value().length;
break;
case 9:
if (this.results_showing && !this.is_multiple) {
this.result_select(evt);
}
this.mouse_on_container = false;
break;
case 13:
if (this.results_showing) {
evt.preventDefault();
}
break;
case 27:
if (this.results_showing) {
evt.preventDefault();
}
break;
case 32:
if (this.disable_search) {
evt.preventDefault();
}
break; case 38:
evt.preventDefault();
this.keyup_arrow();
break;
case 40:
evt.preventDefault();
this.keydown_arrow();
break;
}
};
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) {
this.keydown_backstroke();
} else if (!this.pending_backstroke) {
this.result_clear_highlight();
this.results_search();
}
break;
case 13:
evt.preventDefault();
if (this.results_showing) {
this.result_select(evt);
}
break;
case 27:
if (this.results_showing) {
this.results_hide();
}
break;
case 9:
case 16:
case 17:
case 18:
case 38:
case 40:
case 91:
break;
default:
this.results_search();
break;
}
};
AbstractChosen.prototype.clipboard_event_checker = function(evt) {
var _this = this;
if (this.is_disabled) {
return;
}
return setTimeout((function() {
return _this.results_search();
}), 50);
};
AbstractChosen.prototype.container_width = function() {
if (this.options.width != null) {
return this.options.width;
} 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.prototype.get_single_html = function() {
return "<a class=\"chosen-single chosen-default\">\n <span>" + this.default_text + "</span>\n <div><b></b></div>\n</a>\n<div class=\"chosen-drop\">\n <div class=\"chosen-search\">\n <input class=\"chosen-search-input\" type=\"text\" autocomplete=\"off\" />\n </div>\n <ul class=\"chosen-results\"></ul>\n</div>";
};
AbstractChosen.prototype.get_multi_html = function() {
return "<ul class=\"chosen-choices\">\n <li class=\"search-field\">\n <input class=\"chosen-search-input\" type=\"text\" autocomplete=\"off\" value=\"" + this.default_text + "\" />\n </li>\n</ul>\n<div class=\"chosen-drop\">\n <ul class=\"chosen-results\"></ul>\n</div>";
};
AbstractChosen.prototype.get_no_results_html = function(terms) {
return "<li class=\"no-results\">\n " + this.results_none_found + " <span>" + terms + "</span>\n</li>";
};
AbstractChosen.browser_is_supported = function() {
if ("Microsoft Internet Explorer" === window.navigator.appName) {
return document.documentMode >= 8;
}
if (/iP(od|hone)/i.test(window.navigator.userAgent) || /IEMobile/i.test(window.navigator.userAgent) || /Windows Phone/i.test(window.navigator.userAgent) || /BlackBerry/i.test(window.navigator.userAgent) || /BB10/i.test(window.navigator.userAgent) || /Android.*Mobile/i.test(window.navigator.userAgent)) {
return false;
}
return true;
};
AbstractChosen.default_multiple_text = "Select Some Options";
AbstractChosen.default_single_text = "Select an Option";
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') {
if (chosen instanceof Chosen) {
chosen.destroy();
}
return;
}
if (!(chosen instanceof 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);
return this.current_selectedIndex = this.form_field.selectedIndex;
};
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");
}
container_props = {
'class': container_classes.join(' '),
'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);
this.container.width(this.container_width());
if (this.is_multiple) {
this.container.html(this.get_multi_html());
} else {
this.container.html(this.get_single_html());
}
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();
}
this.results_build();
this.set_tab_index();
return this.set_label_behavior();
};
Chosen.prototype.on_ready = function() {
return this.form_field_jq.trigger("chosen:ready", {
chosen: this
});
};
Chosen.prototype.register_observers = function() {
var _this = this;
this.container.bind('touchstart.chosen', function(evt) {
_this.container_mousedown(evt);
});
this.container.bind('touchend.chosen', function(evt) {
_this.container_mouseup(evt);
});
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.close_field(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() {
$(this.container[0].ownerDocument).unbind('click.chosen', this.click_test_action);
if (this.form_field_label.length > 0) {
this.form_field_label.unbind('click.chosen');
}
if (this.search_field[0].tabIndex) {
this.form_field_jq[0].tabIndex = this.search_field[0].tabIndex;
}
this.container.remove();
this.form_field_jq.removeData('chosen');
return this.form_field_jq.show();
};
Chosen.prototype.search_field_disabled = function() {
this.is_disabled = this.form_field.disabled || this.form_field_jq.parents('fieldset').is(':disabled');
this.container.toggleClass('chosen-disabled', this.is_disabled);
this.search_field[0].disabled = this.is_disabled;
if (!this.is_multiple) {
this.selected_item.unbind('focus.chosen', this.activate_field);
}
if (this.is_disabled) {
return this.close_field();
} else if (!this.is_multiple) {
return this.selected_item.bind('focus.chosen', this.activate_field);
}
};
Chosen.prototype.container_mousedown = function(evt) {
var _ref1;
if (this.is_disabled) {
return;
}
if (evt && ((_ref1 = evt.type) === 'mousedown' || _ref1 === 'touchstart') && !this.results_showing) {
evt.preventDefault();
}
if (!((evt != null) && ($(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.deltaY || -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();
this.search_field_scale();
return this.search_field.blur();
};
Chosen.prototype.activate_field = function() {
if (this.is_disabled) {
return;
}
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");
} else {
this.search_field[0].readOnly = false;
this.container.removeClass("chosen-container-single-nosearch");
}
}
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) {
var high_bottom, high_top, maxHeight, visible_bottom, visible_top;
if (el.length) {
this.result_clear_highlight();
this.result_highlight = el;
this.result_highlight.addClass("highlighted");
maxHeight = parseInt(this.search_results.css("maxHeight"), 10);
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 + this.result_highlight.outerHeight();
if (high_bottom >= visible_bottom) {
return this.search_results.scrollTop((high_bottom - maxHeight) > 0 ? high_bottom - maxHeight : 0);
} else if (high_top < visible_top) {
return this.search_results.scrollTop(high_top);
}
}
};
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.container.addClass("chosen-with-drop");
this.results_showing = true;
this.search_field.focus();
this.search_field.val(this.get_search_field_value());
this.winnow_results();
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 });
}
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() {
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', this.label_click_handler);
}
};
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"
}).html("<span>" + (this.choice_label(item)) + "</span>");
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"))) {
if (this.active_field) {
this.search_field.focus();
} else {
this.show_search_field_default();
}
if (this.is_multiple && this.choices_count() > 0 && this.get_search_field_value().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.trigger_form_field_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();
}
high.addClass("result-selected");
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(this.choice_label(item));
}
if (!(this.is_multiple && (!this.hide_results_on_select || (evt.metaKey || evt.ctrlKey)))) {
this.results_hide();
this.show_search_field_default();
}
if (this.is_multiple || this.form_field.selectedIndex !== this.current_selectedIndex) {
this.trigger_form_field_change({
selected: this.form_field.options[item.options_index].value
});
}
this.current_selectedIndex = this.form_field.selectedIndex;
evt.preventDefault();
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");
}
return this.selected_item.find("span").html(text);
};
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.trigger_form_field_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");
};
Chosen.prototype.get_search_field_value = function() {
return this.search_field.val();
};
Chosen.prototype.get_search_text = function() {
return this.escape_html($.trim(this.get_search_field_value())); };
Chosen.prototype.escape_html = function(text) {
return $('<div/>').text(text).html();
};
Chosen.prototype.winnow_results_set_highlight = function() {
var do_high, selected_results;
selected_results = !this.is_multiple ? this.search_results.find(".result-selected.active-result") : [];
do_high = selected_results.length ? selected_results.first() : this.search_results.find(".active-result").first();
if (do_high != null) {
return this.result_do_highlight(do_high);
}
};
Chosen.prototype.no_results = function(terms) {
var no_results_html;
no_results_html = this.get_no_results_html(terms);
this.search_results.append(no_results_html);
return this.form_field_jq.trigger("chosen:no_results", {
chosen: this
});
};
Chosen.prototype.no_results_clear = function() {
return this.search_results.find(".no-results").remove();
};
Chosen.prototype.keydown_arrow = function() {
var next_sib;
if (this.results_showing && this.result_highlight) {
next_sib = this.result_highlight.nextAll("li.active-result").first();
if (next_sib) {
return this.result_do_highlight(next_sib);
}
} else {
return this.results_show();
}
};
Chosen.prototype.keyup_arrow = function() {
var prev_sibs;
if (!this.results_showing && !this.is_multiple) {
return this.results_show();
} else if (this.result_highlight) {
prev_sibs = this.result_highlight.prevAll("li.active-result");
if (prev_sibs.length) {
return this.result_do_highlight(prev_sibs.first());
} else {
if (this.choices_count() > 0) {
this.results_hide();
}
return this.result_clear_highlight();
}
}
};
Chosen.prototype.keydown_backstroke = function() {
var next_available_destroy;
if (this.pending_backstroke) {
this.choice_destroy(this.pending_backstroke.find("a").first());
return this.clear_backstroke();
} else {
next_available_destroy = this.search_container.siblings("li.search-choice").last();
if (next_available_destroy.length && !next_available_destroy.hasClass("search-choice-disabled")) {
this.pending_backstroke = next_available_destroy;
if (this.single_backstroke_delete) {
return this.keydown_backstroke();
} else {
return this.pending_backstroke.addClass("search-choice-focus"); }
}
}
};
Chosen.prototype.clear_backstroke = function() {
if (this.pending_backstroke) {
this.pending_backstroke.removeClass("search-choice-focus");
}
return this.pending_backstroke = null;
};
Chosen.prototype.search_field_scale = function() {
var container_width, div, style, style_block, styles, width, _i, _len;
if (!this.is_multiple) {
return;
}
style_block = {
position: 'absolute',
left: '-1000px',
top: '-1000px',
display: 'none',
whiteSpace: 'pre'
};
styles = ['fontSize', 'fontStyle', 'fontWeight', 'fontFamily', 'lineHeight', 'textTransform', 'letterSpacing'];
for (_i = 0, _len = styles.length; _i < _len; _i++) {
style = styles[_i];
style_block[style] = this.search_field.css(style);
}
div = $('<div />').css(style_block);
div.text(this.get_search_field_value());
$('body').append(div);
width = div.width() + 25;
div.remove();
container_width = this.container.outerWidth();
width = Math.min(container_width - 10, width);
return this.search_field.width(width);
};
Chosen.prototype.trigger_form_field_change = function(extra) {
this.form_field_jq.trigger("input", extra);
return this.form_field_jq.trigger("change", extra);
};
return Chosen;
})(AbstractChosen);
}).call(this);