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Wed Mar 12 19:30:05 2014 UTC (10 years, 3 months ago) by torben
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initial import
1 torben 2125 // Chosen, a Select Box Enhancer for jQuery and Prototype
2     // by Patrick Filler for Harvest, http://getharvest.com
3     //
4     // Version 1.0.0
5     // Full source at https://github.com/harvesthq/chosen
6     // Copyright (c) 2011 Harvest http://getharvest.com
7    
8     // MIT License, https://github.com/harvesthq/chosen/blob/master/LICENSE.md
9     // This file is generated by `grunt build`, do not edit it by hand.
10     (function() {
11     var $, AbstractChosen, Chosen, SelectParser, _ref,
12     __hasProp = {}.hasOwnProperty,
13     __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; };
14    
15     SelectParser = (function() {
16     function SelectParser() {
17     this.options_index = 0;
18     this.parsed = [];
19     }
20    
21     SelectParser.prototype.add_node = function(child) {
22     if (child.nodeName.toUpperCase() === "OPTGROUP") {
23     return this.add_group(child);
24     } else {
25     return this.add_option(child);
26     }
27     };
28    
29     SelectParser.prototype.add_group = function(group) {
30     var group_position, option, _i, _len, _ref, _results;
31    
32     group_position = this.parsed.length;
33     this.parsed.push({
34     array_index: group_position,
35     group: true,
36     label: this.escapeExpression(group.label),
37     children: 0,
38     disabled: group.disabled
39     });
40     _ref = group.childNodes;
41     _results = [];
42     for (_i = 0, _len = _ref.length; _i < _len; _i++) {
43     option = _ref[_i];
44     _results.push(this.add_option(option, group_position, group.disabled));
45     }
46     return _results;
47     };
48    
49     SelectParser.prototype.add_option = function(option, group_position, group_disabled) {
50     if (option.nodeName.toUpperCase() === "OPTION") {
51     if (option.text !== "") {
52     if (group_position != null) {
53     this.parsed[group_position].children += 1;
54     }
55     this.parsed.push({
56     array_index: this.parsed.length,
57     options_index: this.options_index,
58     value: option.value,
59     text: option.text,
60     html: option.innerHTML,
61     selected: option.selected,
62     disabled: group_disabled === true ? group_disabled : option.disabled,
63     group_array_index: group_position,
64     classes: option.className,
65     style: option.style.cssText
66     });
67     } else {
68     this.parsed.push({
69     array_index: this.parsed.length,
70     options_index: this.options_index,
71     empty: true
72     });
73     }
74     return this.options_index += 1;
75     }
76     };
77    
78     SelectParser.prototype.escapeExpression = function(text) {
79     var map, unsafe_chars;
80    
81     if ((text == null) || text === false) {
82     return "";
83     }
84     if (!/[\&\<\>\"\'\`]/.test(text)) {
85     return text;
86     }
87     map = {
88     "<": "&lt;",
89     ">": "&gt;",
90     '"': "&quot;",
91     "'": "&#x27;",
92     "`": "&#x60;"
93     };
94     unsafe_chars = /&(?!\w+;)|[\<\>\"\'\`]/g;
95     return text.replace(unsafe_chars, function(chr) {
96     return map[chr] || "&amp;";
97     });
98     };
99    
100     return SelectParser;
101    
102     })();
103    
104     SelectParser.select_to_array = function(select) {
105     var child, parser, _i, _len, _ref;
106    
107     parser = new SelectParser();
108     _ref = select.childNodes;
109     for (_i = 0, _len = _ref.length; _i < _len; _i++) {
110     child = _ref[_i];
111     parser.add_node(child);
112     }
113     return parser.parsed;
114     };
115    
116     AbstractChosen = (function() {
117     function AbstractChosen(form_field, options) {
118     this.form_field = form_field;
119     this.options = options != null ? options : {};
120     if (!AbstractChosen.browser_is_supported()) {
121     return;
122     }
123     this.is_multiple = this.form_field.multiple;
124     this.set_default_text();
125     this.set_default_values();
126     this.setup();
127     this.set_up_html();
128     this.register_observers();
129     }
130    
131     AbstractChosen.prototype.set_default_values = function() {
132     var _this = this;
133    
134     this.click_test_action = function(evt) {
135     return _this.test_active_click(evt);
136     };
137     this.activate_action = function(evt) {
138     return _this.activate_field(evt);
139     };
140     this.active_field = false;
141     this.mouse_on_container = false;
142     this.results_showing = false;
143     this.result_highlighted = null;
144     this.result_single_selected = null;
145     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;
146     this.disable_search_threshold = this.options.disable_search_threshold || 0;
147     this.disable_search = this.options.disable_search || false;
148     this.enable_split_word_search = this.options.enable_split_word_search != null ? this.options.enable_split_word_search : true;
149     this.group_search = this.options.group_search != null ? this.options.group_search : true;
150     this.search_contains = this.options.search_contains || false;
151     this.single_backstroke_delete = this.options.single_backstroke_delete != null ? this.options.single_backstroke_delete : true;
152     this.max_selected_options = this.options.max_selected_options || Infinity;
153     this.inherit_select_classes = this.options.inherit_select_classes || false;
154     this.display_selected_options = this.options.display_selected_options != null ? this.options.display_selected_options : true;
155     return this.display_disabled_options = this.options.display_disabled_options != null ? this.options.display_disabled_options : true;
156     };
157    
158     AbstractChosen.prototype.set_default_text = function() {
159     if (this.form_field.getAttribute("data-placeholder")) {
160     this.default_text = this.form_field.getAttribute("data-placeholder");
161     } else if (this.is_multiple) {
162     this.default_text = this.options.placeholder_text_multiple || this.options.placeholder_text || AbstractChosen.default_multiple_text;
163     } else {
164     this.default_text = this.options.placeholder_text_single || this.options.placeholder_text || AbstractChosen.default_single_text;
165     }
166     return this.results_none_found = this.form_field.getAttribute("data-no_results_text") || this.options.no_results_text || AbstractChosen.default_no_result_text;
167     };
168    
169     AbstractChosen.prototype.mouse_enter = function() {
170     return this.mouse_on_container = true;
171     };
172    
173     AbstractChosen.prototype.mouse_leave = function() {
174     return this.mouse_on_container = false;
175     };
176    
177     AbstractChosen.prototype.input_focus = function(evt) {
178     var _this = this;
179    
180     if (this.is_multiple) {
181     if (!this.active_field) {
182     return setTimeout((function() {
183     return _this.container_mousedown();
184     }), 50);
185     }
186     } else {
187     if (!this.active_field) {
188     return this.activate_field();
189     }
190     }
191     };
192    
193     AbstractChosen.prototype.input_blur = function(evt) {
194     var _this = this;
195    
196     if (!this.mouse_on_container) {
197     this.active_field = false;
198     return setTimeout((function() {
199     return _this.blur_test();
200     }), 100);
201     }
202     };
203    
204     AbstractChosen.prototype.results_option_build = function(options) {
205     var content, data, _i, _len, _ref;
206    
207     content = '';
208     _ref = this.results_data;
209     for (_i = 0, _len = _ref.length; _i < _len; _i++) {
210     data = _ref[_i];
211     if (data.group) {
212     content += this.result_add_group(data);
213     } else {
214     content += this.result_add_option(data);
215     }
216     if (options != null ? options.first : void 0) {
217     if (data.selected && this.is_multiple) {
218     this.choice_build(data);
219     } else if (data.selected && !this.is_multiple) {
220     this.single_set_selected_text(data.text);
221     }
222     }
223     }
224     return content;
225     };
226    
227     AbstractChosen.prototype.result_add_option = function(option) {
228     var classes, style;
229    
230     if (!option.search_match) {
231     return '';
232     }
233     if (!this.include_option_in_results(option)) {
234     return '';
235     }
236     classes = [];
237     if (!option.disabled && !(option.selected && this.is_multiple)) {
238     classes.push("active-result");
239     }
240     if (option.disabled && !(option.selected && this.is_multiple)) {
241     classes.push("disabled-result");
242     }
243     if (option.selected) {
244     classes.push("result-selected");
245     }
246     if (option.group_array_index != null) {
247     classes.push("group-option");
248     }
249     if (option.classes !== "") {
250     classes.push(option.classes);
251     }
252     style = option.style.cssText !== "" ? " style=\"" + option.style + "\"" : "";
253     return "<li class=\"" + (classes.join(' ')) + "\"" + style + " data-option-array-index=\"" + option.array_index + "\">" + option.search_text + "</li>";
254     };
255    
256     AbstractChosen.prototype.result_add_group = function(group) {
257     if (!(group.search_match || group.group_match)) {
258     return '';
259     }
260     if (!(group.active_options > 0)) {
261     return '';
262     }
263     return "<li class=\"group-result\">" + group.search_text + "</li>";
264     };
265    
266     AbstractChosen.prototype.results_update_field = function() {
267     this.set_default_text();
268     if (!this.is_multiple) {
269     this.results_reset_cleanup();
270     }
271     this.result_clear_highlight();
272     this.result_single_selected = null;
273     this.results_build();
274     if (this.results_showing) {
275     return this.winnow_results();
276     }
277     };
278    
279     AbstractChosen.prototype.results_toggle = function() {
280     if (this.results_showing) {
281     return this.results_hide();
282     } else {
283     return this.results_show();
284     }
285     };
286    
287     AbstractChosen.prototype.results_search = function(evt) {
288     if (this.results_showing) {
289     return this.winnow_results();
290     } else {
291     return this.results_show();
292     }
293     };
294    
295     AbstractChosen.prototype.winnow_results = function() {
296     var escapedSearchText, option, regex, regexAnchor, results, results_group, searchText, startpos, text, zregex, _i, _len, _ref;
297    
298     this.no_results_clear();
299     results = 0;
300     searchText = this.get_search_text();
301     escapedSearchText = searchText.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&");
302     regexAnchor = this.search_contains ? "" : "^";
303     regex = new RegExp(regexAnchor + escapedSearchText, 'i');
304     zregex = new RegExp(escapedSearchText, 'i');
305     _ref = this.results_data;
306     for (_i = 0, _len = _ref.length; _i < _len; _i++) {
307     option = _ref[_i];
308     option.search_match = false;
309     results_group = null;
310     if (this.include_option_in_results(option)) {
311     if (option.group) {
312     option.group_match = false;
313     option.active_options = 0;
314     }
315     if ((option.group_array_index != null) && this.results_data[option.group_array_index]) {
316     results_group = this.results_data[option.group_array_index];
317     if (results_group.active_options === 0 && results_group.search_match) {
318     results += 1;
319     }
320     results_group.active_options += 1;
321     }
322     if (!(option.group && !this.group_search)) {
323     option.search_text = option.group ? option.label : option.html;
324     option.search_match = this.search_string_match(option.search_text, regex);
325     if (option.search_match && !option.group) {
326     results += 1;
327     }
328     if (option.search_match) {
329     if (searchText.length) {
330     startpos = option.search_text.search(zregex);
331     text = option.search_text.substr(0, startpos + searchText.length) + '</em>' + option.search_text.substr(startpos + searchText.length);
332     option.search_text = text.substr(0, startpos) + '<em>' + text.substr(startpos);
333     }
334     if (results_group != null) {
335     results_group.group_match = true;
336     }
337     } else if ((option.group_array_index != null) && this.results_data[option.group_array_index].search_match) {
338     option.search_match = true;
339     }
340     }
341     }
342     }
343     this.result_clear_highlight();
344     if (results < 1 && searchText.length) {
345     this.update_results_content("");
346     return this.no_results(searchText);
347     } else {
348     this.update_results_content(this.results_option_build());
349     return this.winnow_results_set_highlight();
350     }
351     };
352    
353     AbstractChosen.prototype.search_string_match = function(search_string, regex) {
354     var part, parts, _i, _len;
355    
356     if (regex.test(search_string)) {
357     return true;
358     } else if (this.enable_split_word_search && (search_string.indexOf(" ") >= 0 || search_string.indexOf("[") === 0)) {
359     parts = search_string.replace(/\[|\]/g, "").split(" ");
360     if (parts.length) {
361     for (_i = 0, _len = parts.length; _i < _len; _i++) {
362     part = parts[_i];
363     if (regex.test(part)) {
364     return true;
365     }
366     }
367     }
368     }
369     };
370    
371     AbstractChosen.prototype.choices_count = function() {
372     var option, _i, _len, _ref;
373    
374     if (this.selected_option_count != null) {
375     return this.selected_option_count;
376     }
377     this.selected_option_count = 0;
378     _ref = this.form_field.options;
379     for (_i = 0, _len = _ref.length; _i < _len; _i++) {
380     option = _ref[_i];
381     if (option.selected) {
382     this.selected_option_count += 1;
383     }
384     }
385     return this.selected_option_count;
386     };
387    
388     AbstractChosen.prototype.choices_click = function(evt) {
389     evt.preventDefault();
390     if (!(this.results_showing || this.is_disabled)) {
391     return this.results_show();
392     }
393     };
394    
395     AbstractChosen.prototype.keyup_checker = function(evt) {
396     var stroke, _ref;
397    
398     stroke = (_ref = evt.which) != null ? _ref : evt.keyCode;
399     this.search_field_scale();
400     switch (stroke) {
401     case 8:
402     if (this.is_multiple && this.backstroke_length < 1 && this.choices_count() > 0) {
403     return this.keydown_backstroke();
404     } else if (!this.pending_backstroke) {
405     this.result_clear_highlight();
406     return this.results_search();
407     }
408     break;
409     case 13:
410     evt.preventDefault();
411     if (this.results_showing) {
412     return this.result_select(evt);
413     }
414     break;
415     case 27:
416     if (this.results_showing) {
417     this.results_hide();
418     }
419     return true;
420     case 9:
421     case 38:
422     case 40:
423     case 16:
424     case 91:
425     case 17:
426     break;
427     default:
428     return this.results_search();
429     }
430     };
431    
432     AbstractChosen.prototype.container_width = function() {
433     if (this.options.width != null) {
434     return this.options.width;
435     } else {
436     return "" + this.form_field.offsetWidth + "px";
437     }
438     };
439    
440     AbstractChosen.prototype.include_option_in_results = function(option) {
441     if (this.is_multiple && (!this.display_selected_options && option.selected)) {
442     return false;
443     }
444     if (!this.display_disabled_options && option.disabled) {
445     return false;
446     }
447     if (option.empty) {
448     return false;
449     }
450     return true;
451     };
452    
453     AbstractChosen.browser_is_supported = function() {
454     if (window.navigator.appName === "Microsoft Internet Explorer") {
455     return document.documentMode >= 8;
456     }
457     if (/iP(od|hone)/i.test(window.navigator.userAgent)) {
458     return false;
459     }
460     if (/Android/i.test(window.navigator.userAgent)) {
461     if (/Mobile/i.test(window.navigator.userAgent)) {
462     return false;
463     }
464     }
465     return true;
466     };
467    
468     AbstractChosen.default_multiple_text = "Select Some Options";
469    
470     AbstractChosen.default_single_text = "Select an Option";
471    
472     AbstractChosen.default_no_result_text = "No results match";
473    
474     return AbstractChosen;
475    
476     })();
477    
478     $ = jQuery;
479    
480     $.fn.extend({
481     chosen: function(options) {
482     if (!AbstractChosen.browser_is_supported()) {
483     return this;
484     }
485     return this.each(function(input_field) {
486     var $this, chosen;
487    
488     $this = $(this);
489     chosen = $this.data('chosen');
490     if (options === 'destroy' && chosen) {
491     chosen.destroy();
492     } else if (!chosen) {
493     $this.data('chosen', new Chosen(this, options));
494     }
495     });
496     }
497     });
498    
499     Chosen = (function(_super) {
500     __extends(Chosen, _super);
501    
502     function Chosen() {
503     _ref = Chosen.__super__.constructor.apply(this, arguments);
504     return _ref;
505     }
506    
507     Chosen.prototype.setup = function() {
508     this.form_field_jq = $(this.form_field);
509     this.current_selectedIndex = this.form_field.selectedIndex;
510     return this.is_rtl = this.form_field_jq.hasClass("chosen-rtl");
511     };
512    
513     Chosen.prototype.set_up_html = function() {
514     var container_classes, container_props;
515    
516     container_classes = ["chosen-container"];
517     container_classes.push("chosen-container-" + (this.is_multiple ? "multi" : "single"));
518     if (this.inherit_select_classes && this.form_field.className) {
519     container_classes.push(this.form_field.className);
520     }
521     if (this.is_rtl) {
522     container_classes.push("chosen-rtl");
523     }
524     container_props = {
525     'class': container_classes.join(' '),
526     'style': "width: " + (this.container_width()) + ";",
527     'title': this.form_field.title
528     };
529     if (this.form_field.id.length) {
530     container_props.id = this.form_field.id.replace(/[^\w]/g, '_') + "_chosen";
531     }
532     this.container = $("<div />", container_props);
533     if (this.is_multiple) {
534     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>');
535     } else {
536     this.container.html('<a class="chosen-single chosen-default" tabindex="-1"><span>' + this.default_text + '</span><div><b></b></div></a><div class="chosen-drop"><div class="chosen-search"><input type="text" autocomplete="off" /></div><ul class="chosen-results"></ul></div>');
537     }
538     this.form_field_jq.hide().after(this.container);
539     this.dropdown = this.container.find('div.chosen-drop').first();
540     this.search_field = this.container.find('input').first();
541     this.search_results = this.container.find('ul.chosen-results').first();
542     this.search_field_scale();
543     this.search_no_results = this.container.find('li.no-results').first();
544     if (this.is_multiple) {
545     this.search_choices = this.container.find('ul.chosen-choices').first();
546     this.search_container = this.container.find('li.search-field').first();
547     } else {
548     this.search_container = this.container.find('div.chosen-search').first();
549     this.selected_item = this.container.find('.chosen-single').first();
550     }
551     this.results_build();
552     this.set_tab_index();
553     this.set_label_behavior();
554     return this.form_field_jq.trigger("chosen:ready", {
555     chosen: this
556     });
557     };
558    
559     Chosen.prototype.register_observers = function() {
560     var _this = this;
561    
562     this.container.bind('mousedown.chosen', function(evt) {
563     _this.container_mousedown(evt);
564     });
565     this.container.bind('mouseup.chosen', function(evt) {
566     _this.container_mouseup(evt);
567     });
568     this.container.bind('mouseenter.chosen', function(evt) {
569     _this.mouse_enter(evt);
570     });
571     this.container.bind('mouseleave.chosen', function(evt) {
572     _this.mouse_leave(evt);
573     });
574     this.search_results.bind('mouseup.chosen', function(evt) {
575     _this.search_results_mouseup(evt);
576     });
577     this.search_results.bind('mouseover.chosen', function(evt) {
578     _this.search_results_mouseover(evt);
579     });
580     this.search_results.bind('mouseout.chosen', function(evt) {
581     _this.search_results_mouseout(evt);
582     });
583     this.search_results.bind('mousewheel.chosen DOMMouseScroll.chosen', function(evt) {
584     _this.search_results_mousewheel(evt);
585     });
586     this.form_field_jq.bind("chosen:updated.chosen", function(evt) {
587     _this.results_update_field(evt);
588     });
589     this.form_field_jq.bind("chosen:activate.chosen", function(evt) {
590     _this.activate_field(evt);
591     });
592     this.form_field_jq.bind("chosen:open.chosen", function(evt) {
593     _this.container_mousedown(evt);
594     });
595     this.search_field.bind('blur.chosen', function(evt) {
596     _this.input_blur(evt);
597     });
598     this.search_field.bind('keyup.chosen', function(evt) {
599     _this.keyup_checker(evt);
600     });
601     this.search_field.bind('keydown.chosen', function(evt) {
602     _this.keydown_checker(evt);
603     });
604     this.search_field.bind('focus.chosen', function(evt) {
605     _this.input_focus(evt);
606     });
607     if (this.is_multiple) {
608     return this.search_choices.bind('click.chosen', function(evt) {
609     _this.choices_click(evt);
610     });
611     } else {
612     return this.container.bind('click.chosen', function(evt) {
613     evt.preventDefault();
614     });
615     }
616     };
617    
618     Chosen.prototype.destroy = function() {
619     $(document).unbind("click.chosen", this.click_test_action);
620     if (this.search_field[0].tabIndex) {
621     this.form_field_jq[0].tabIndex = this.search_field[0].tabIndex;
622     }
623     this.container.remove();
624     this.form_field_jq.removeData('chosen');
625     return this.form_field_jq.show();
626     };
627    
628     Chosen.prototype.search_field_disabled = function() {
629     this.is_disabled = this.form_field_jq[0].disabled;
630     if (this.is_disabled) {
631     this.container.addClass('chosen-disabled');
632     this.search_field[0].disabled = true;
633     if (!this.is_multiple) {
634     this.selected_item.unbind("focus.chosen", this.activate_action);
635     }
636     return this.close_field();
637     } else {
638     this.container.removeClass('chosen-disabled');
639     this.search_field[0].disabled = false;
640     if (!this.is_multiple) {
641     return this.selected_item.bind("focus.chosen", this.activate_action);
642     }
643     }
644     };
645    
646     Chosen.prototype.container_mousedown = function(evt) {
647     if (!this.is_disabled) {
648     if (evt && evt.type === "mousedown" && !this.results_showing) {
649     evt.preventDefault();
650     }
651     if (!((evt != null) && ($(evt.target)).hasClass("search-choice-close"))) {
652     if (!this.active_field) {
653     if (this.is_multiple) {
654     this.search_field.val("");
655     }
656     $(document).bind('click.chosen', this.click_test_action);
657     this.results_show();
658     } else if (!this.is_multiple && evt && (($(evt.target)[0] === this.selected_item[0]) || $(evt.target).parents("a.chosen-single").length)) {
659     evt.preventDefault();
660     this.results_toggle();
661     }
662     return this.activate_field();
663     }
664     }
665     };
666    
667     Chosen.prototype.container_mouseup = function(evt) {
668     if (evt.target.nodeName === "ABBR" && !this.is_disabled) {
669     return this.results_reset(evt);
670     }
671     };
672    
673     Chosen.prototype.search_results_mousewheel = function(evt) {
674     var delta, _ref1, _ref2;
675    
676     delta = -((_ref1 = evt.originalEvent) != null ? _ref1.wheelDelta : void 0) || ((_ref2 = evt.originialEvent) != null ? _ref2.detail : void 0);
677     if (delta != null) {
678     evt.preventDefault();
679     if (evt.type === 'DOMMouseScroll') {
680     delta = delta * 40;
681     }
682     return this.search_results.scrollTop(delta + this.search_results.scrollTop());
683     }
684     };
685    
686     Chosen.prototype.blur_test = function(evt) {
687     if (!this.active_field && this.container.hasClass("chosen-container-active")) {
688     return this.close_field();
689     }
690     };
691    
692     Chosen.prototype.close_field = function() {
693     $(document).unbind("click.chosen", this.click_test_action);
694     this.active_field = false;
695     this.results_hide();
696     this.container.removeClass("chosen-container-active");
697     this.clear_backstroke();
698     this.show_search_field_default();
699     return this.search_field_scale();
700     };
701    
702     Chosen.prototype.activate_field = function() {
703     this.container.addClass("chosen-container-active");
704     this.active_field = true;
705     this.search_field.val(this.search_field.val());
706     return this.search_field.focus();
707     };
708    
709     Chosen.prototype.test_active_click = function(evt) {
710     if (this.container.is($(evt.target).closest('.chosen-container'))) {
711     return this.active_field = true;
712     } else {
713     return this.close_field();
714     }
715     };
716    
717     Chosen.prototype.results_build = function() {
718     this.parsing = true;
719     this.selected_option_count = null;
720     this.results_data = SelectParser.select_to_array(this.form_field);
721     if (this.is_multiple) {
722     this.search_choices.find("li.search-choice").remove();
723     } else if (!this.is_multiple) {
724     this.single_set_selected_text();
725     if (this.disable_search || this.form_field.options.length <= this.disable_search_threshold) {
726     this.search_field[0].readOnly = true;
727     this.container.addClass("chosen-container-single-nosearch");
728     } else {
729     this.search_field[0].readOnly = false;
730     this.container.removeClass("chosen-container-single-nosearch");
731     }
732     }
733     this.update_results_content(this.results_option_build({
734     first: true
735     }));
736     this.search_field_disabled();
737     this.show_search_field_default();
738     this.search_field_scale();
739     return this.parsing = false;
740     };
741    
742     Chosen.prototype.result_do_highlight = function(el) {
743     var high_bottom, high_top, maxHeight, visible_bottom, visible_top;
744    
745     if (el.length) {
746     this.result_clear_highlight();
747     this.result_highlight = el;
748     this.result_highlight.addClass("highlighted");
749     maxHeight = parseInt(this.search_results.css("maxHeight"), 10);
750     visible_top = this.search_results.scrollTop();
751     visible_bottom = maxHeight + visible_top;
752     high_top = this.result_highlight.position().top + this.search_results.scrollTop();
753     high_bottom = high_top + this.result_highlight.outerHeight();
754     if (high_bottom >= visible_bottom) {
755     return this.search_results.scrollTop((high_bottom - maxHeight) > 0 ? high_bottom - maxHeight : 0);
756     } else if (high_top < visible_top) {
757     return this.search_results.scrollTop(high_top);
758     }
759     }
760     };
761    
762     Chosen.prototype.result_clear_highlight = function() {
763     if (this.result_highlight) {
764     this.result_highlight.removeClass("highlighted");
765     }
766     return this.result_highlight = null;
767     };
768    
769     Chosen.prototype.results_show = function() {
770     if (this.is_multiple && this.max_selected_options <= this.choices_count()) {
771     this.form_field_jq.trigger("chosen:maxselected", {
772     chosen: this
773     });
774     return false;
775     }
776     this.container.addClass("chosen-with-drop");
777     this.form_field_jq.trigger("chosen:showing_dropdown", {
778     chosen: this
779     });
780     this.results_showing = true;
781     this.search_field.focus();
782     this.search_field.val(this.search_field.val());
783     return this.winnow_results();
784     };
785    
786     Chosen.prototype.update_results_content = function(content) {
787     return this.search_results.html(content);
788     };
789    
790     Chosen.prototype.results_hide = function() {
791     if (this.results_showing) {
792     this.result_clear_highlight();
793     this.container.removeClass("chosen-with-drop");
794     this.form_field_jq.trigger("chosen:hiding_dropdown", {
795     chosen: this
796     });
797     }
798     return this.results_showing = false;
799     };
800    
801     Chosen.prototype.set_tab_index = function(el) {
802     var ti;
803    
804     if (this.form_field.tabIndex) {
805     ti = this.form_field.tabIndex;
806     this.form_field.tabIndex = -1;
807     return this.search_field[0].tabIndex = ti;
808     }
809     };
810    
811     Chosen.prototype.set_label_behavior = function() {
812     var _this = this;
813    
814     this.form_field_label = this.form_field_jq.parents("label");
815     if (!this.form_field_label.length && this.form_field.id.length) {
816     this.form_field_label = $("label[for='" + this.form_field.id + "']");
817     }
818     if (this.form_field_label.length > 0) {
819     return this.form_field_label.bind('click.chosen', function(evt) {
820     if (_this.is_multiple) {
821     return _this.container_mousedown(evt);
822     } else {
823     return _this.activate_field();
824     }
825     });
826     }
827     };
828    
829     Chosen.prototype.show_search_field_default = function() {
830     if (this.is_multiple && this.choices_count() < 1 && !this.active_field) {
831     this.search_field.val(this.default_text);
832     return this.search_field.addClass("default");
833     } else {
834     this.search_field.val("");
835     return this.search_field.removeClass("default");
836     }
837     };
838    
839     Chosen.prototype.search_results_mouseup = function(evt) {
840     var target;
841    
842     target = $(evt.target).hasClass("active-result") ? $(evt.target) : $(evt.target).parents(".active-result").first();
843     if (target.length) {
844     this.result_highlight = target;
845     this.result_select(evt);
846     return this.search_field.focus();
847     }
848     };
849    
850     Chosen.prototype.search_results_mouseover = function(evt) {
851     var target;
852    
853     target = $(evt.target).hasClass("active-result") ? $(evt.target) : $(evt.target).parents(".active-result").first();
854     if (target) {
855     return this.result_do_highlight(target);
856     }
857     };
858    
859     Chosen.prototype.search_results_mouseout = function(evt) {
860     if ($(evt.target).hasClass("active-result" || $(evt.target).parents('.active-result').first())) {
861     return this.result_clear_highlight();
862     }
863     };
864    
865     Chosen.prototype.choice_build = function(item) {
866     var choice, close_link,
867     _this = this;
868    
869     choice = $('<li />', {
870     "class": "search-choice"
871     }).html("<span>" + item.html + "</span>");
872     if (item.disabled) {
873     choice.addClass('search-choice-disabled');
874     } else {
875     close_link = $('<a />', {
876     "class": 'search-choice-close',
877     'data-option-array-index': item.array_index
878     });
879     close_link.bind('click.chosen', function(evt) {
880     return _this.choice_destroy_link_click(evt);
881     });
882     choice.append(close_link);
883     }
884     return this.search_container.before(choice);
885     };
886    
887     Chosen.prototype.choice_destroy_link_click = function(evt) {
888     evt.preventDefault();
889     evt.stopPropagation();
890     if (!this.is_disabled) {
891     return this.choice_destroy($(evt.target));
892     }
893     };
894    
895     Chosen.prototype.choice_destroy = function(link) {
896     if (this.result_deselect(link[0].getAttribute("data-option-array-index"))) {
897     this.show_search_field_default();
898     if (this.is_multiple && this.choices_count() > 0 && this.search_field.val().length < 1) {
899     this.results_hide();
900     }
901     link.parents('li').first().remove();
902     return this.search_field_scale();
903     }
904     };
905    
906     Chosen.prototype.results_reset = function() {
907     this.form_field.options[0].selected = true;
908     this.selected_option_count = null;
909     this.single_set_selected_text();
910     this.show_search_field_default();
911     this.results_reset_cleanup();
912     this.form_field_jq.trigger("change");
913     if (this.active_field) {
914     return this.results_hide();
915     }
916     };
917    
918     Chosen.prototype.results_reset_cleanup = function() {
919     this.current_selectedIndex = this.form_field.selectedIndex;
920     return this.selected_item.find("abbr").remove();
921     };
922    
923     Chosen.prototype.result_select = function(evt) {
924     var high, item, selected_index;
925    
926     if (this.result_highlight) {
927     high = this.result_highlight;
928     this.result_clear_highlight();
929     if (this.is_multiple && this.max_selected_options <= this.choices_count()) {
930     this.form_field_jq.trigger("chosen:maxselected", {
931     chosen: this
932     });
933     return false;
934     }
935     if (this.is_multiple) {
936     high.removeClass("active-result");
937     } else {
938     if (this.result_single_selected) {
939     this.result_single_selected.removeClass("result-selected");
940     selected_index = this.result_single_selected[0].getAttribute('data-option-array-index');
941     this.results_data[selected_index].selected = false;
942     }
943     this.result_single_selected = high;
944     }
945     high.addClass("result-selected");
946     item = this.results_data[high[0].getAttribute("data-option-array-index")];
947     item.selected = true;
948     this.form_field.options[item.options_index].selected = true;
949     this.selected_option_count = null;
950     if (this.is_multiple) {
951     this.choice_build(item);
952     } else {
953     this.single_set_selected_text(item.text);
954     }
955     if (!((evt.metaKey || evt.ctrlKey) && this.is_multiple)) {
956     this.results_hide();
957     }
958     this.search_field.val("");
959     if (this.is_multiple || this.form_field.selectedIndex !== this.current_selectedIndex) {
960     this.form_field_jq.trigger("change", {
961     'selected': this.form_field.options[item.options_index].value
962     });
963     }
964     this.current_selectedIndex = this.form_field.selectedIndex;
965     return this.search_field_scale();
966     }
967     };
968    
969     Chosen.prototype.single_set_selected_text = function(text) {
970     if (text == null) {
971     text = this.default_text;
972     }
973     if (text === this.default_text) {
974     this.selected_item.addClass("chosen-default");
975     } else {
976     this.single_deselect_control_build();
977     this.selected_item.removeClass("chosen-default");
978     }
979     return this.selected_item.find("span").text(text);
980     };
981    
982     Chosen.prototype.result_deselect = function(pos) {
983     var result_data;
984    
985     result_data = this.results_data[pos];
986     if (!this.form_field.options[result_data.options_index].disabled) {
987     result_data.selected = false;
988     this.form_field.options[result_data.options_index].selected = false;
989     this.selected_option_count = null;
990     this.result_clear_highlight();
991     if (this.results_showing) {
992     this.winnow_results();
993     }
994     this.form_field_jq.trigger("change", {
995     deselected: this.form_field.options[result_data.options_index].value
996     });
997     this.search_field_scale();
998     return true;
999     } else {
1000     return false;
1001     }
1002     };
1003    
1004     Chosen.prototype.single_deselect_control_build = function() {
1005     if (!this.allow_single_deselect) {
1006     return;
1007     }
1008     if (!this.selected_item.find("abbr").length) {
1009     this.selected_item.find("span").first().after("<abbr class=\"search-choice-close\"></abbr>");
1010     }
1011     return this.selected_item.addClass("chosen-single-with-deselect");
1012     };
1013    
1014     Chosen.prototype.get_search_text = function() {
1015     if (this.search_field.val() === this.default_text) {
1016     return "";
1017     } else {
1018     return $('<div/>').text($.trim(this.search_field.val())).html();
1019     }
1020     };
1021    
1022     Chosen.prototype.winnow_results_set_highlight = function() {
1023     var do_high, selected_results;
1024    
1025     selected_results = !this.is_multiple ? this.search_results.find(".result-selected.active-result") : [];
1026     do_high = selected_results.length ? selected_results.first() : this.search_results.find(".active-result").first();
1027     if (do_high != null) {
1028     return this.result_do_highlight(do_high);
1029     }
1030     };
1031    
1032     Chosen.prototype.no_results = function(terms) {
1033     var no_results_html;
1034    
1035     no_results_html = $('<li class="no-results">' + this.results_none_found + ' "<span></span>"</li>');
1036     no_results_html.find("span").first().html(terms);
1037     return this.search_results.append(no_results_html);
1038     };
1039    
1040     Chosen.prototype.no_results_clear = function() {
1041     return this.search_results.find(".no-results").remove();
1042     };
1043    
1044     Chosen.prototype.keydown_arrow = function() {
1045     var next_sib;
1046    
1047     if (this.results_showing && this.result_highlight) {
1048     next_sib = this.result_highlight.nextAll("li.active-result").first();
1049     if (next_sib) {
1050     return this.result_do_highlight(next_sib);
1051     }
1052     } else {
1053     return this.results_show();
1054     }
1055     };
1056    
1057     Chosen.prototype.keyup_arrow = function() {
1058     var prev_sibs;
1059    
1060     if (!this.results_showing && !this.is_multiple) {
1061     return this.results_show();
1062     } else if (this.result_highlight) {
1063     prev_sibs = this.result_highlight.prevAll("li.active-result");
1064     if (prev_sibs.length) {
1065     return this.result_do_highlight(prev_sibs.first());
1066     } else {
1067     if (this.choices_count() > 0) {
1068     this.results_hide();
1069     }
1070     return this.result_clear_highlight();
1071     }
1072     }
1073     };
1074    
1075     Chosen.prototype.keydown_backstroke = function() {
1076     var next_available_destroy;
1077    
1078     if (this.pending_backstroke) {
1079     this.choice_destroy(this.pending_backstroke.find("a").first());
1080     return this.clear_backstroke();
1081     } else {
1082     next_available_destroy = this.search_container.siblings("li.search-choice").last();
1083     if (next_available_destroy.length && !next_available_destroy.hasClass("search-choice-disabled")) {
1084     this.pending_backstroke = next_available_destroy;
1085     if (this.single_backstroke_delete) {
1086     return this.keydown_backstroke();
1087     } else {
1088     return this.pending_backstroke.addClass("search-choice-focus");
1089     }
1090     }
1091     }
1092     };
1093    
1094     Chosen.prototype.clear_backstroke = function() {
1095     if (this.pending_backstroke) {
1096     this.pending_backstroke.removeClass("search-choice-focus");
1097     }
1098     return this.pending_backstroke = null;
1099     };
1100    
1101     Chosen.prototype.keydown_checker = function(evt) {
1102     var stroke, _ref1;
1103    
1104     stroke = (_ref1 = evt.which) != null ? _ref1 : evt.keyCode;
1105     this.search_field_scale();
1106     if (stroke !== 8 && this.pending_backstroke) {
1107     this.clear_backstroke();
1108     }
1109     switch (stroke) {
1110     case 8:
1111     this.backstroke_length = this.search_field.val().length;
1112     break;
1113     case 9:
1114     if (this.results_showing && !this.is_multiple) {
1115     this.result_select(evt);
1116     }
1117     this.mouse_on_container = false;
1118     break;
1119     case 13:
1120     evt.preventDefault();
1121     break;
1122     case 38:
1123     evt.preventDefault();
1124     this.keyup_arrow();
1125     break;
1126     case 40:
1127     evt.preventDefault();
1128     this.keydown_arrow();
1129     break;
1130     }
1131     };
1132    
1133     Chosen.prototype.search_field_scale = function() {
1134     var div, f_width, h, style, style_block, styles, w, _i, _len;
1135    
1136     if (this.is_multiple) {
1137     h = 0;
1138     w = 0;
1139     style_block = "position:absolute; left: -1000px; top: -1000px; display:none;";
1140     styles = ['font-size', 'font-style', 'font-weight', 'font-family', 'line-height', 'text-transform', 'letter-spacing'];
1141     for (_i = 0, _len = styles.length; _i < _len; _i++) {
1142     style = styles[_i];
1143     style_block += style + ":" + this.search_field.css(style) + ";";
1144     }
1145     div = $('<div />', {
1146     'style': style_block
1147     });
1148     div.text(this.search_field.val());
1149     $('body').append(div);
1150     w = div.width() + 25;
1151     div.remove();
1152     f_width = this.container.outerWidth();
1153     if (w > f_width - 10) {
1154     w = f_width - 10;
1155     }
1156     return this.search_field.css({
1157     'width': w + 'px'
1158     });
1159     }
1160     };
1161    
1162     return Chosen;
1163    
1164     })(AbstractChosen);
1165    
1166     }).call(this);

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