(function() { /* Chosen, a Select Box Enhancer for jQuery and Protoype by Patrick Filler for Harvest, http://getharvest.com Available for use under the MIT License, http://en.wikipedia.org/wiki/MIT_License Copyright (c) 2011 by Harvest */ var Chosen, SelectParser, get_side_border_padding, root; var __bind = function(fn, me){ return function(){ return fn.apply(me, arguments); }; }; root = typeof exports !== "undefined" && exports !== null ? exports : this; Chosen = (function() { function Chosen(elmn) { this.set_default_values(); this.form_field = elmn; this.is_multiple = this.form_field.multiple; this.default_text_default = this.form_field.multiple ? "Select Some Options" : "Select an Option"; this.set_up_html(); this.register_observers(); } Chosen.prototype.set_default_values = function() { this.click_test_action = __bind(function(evt) { return this.test_active_click(evt); }, this); this.active_field = false; this.mouse_on_container = false; this.results_showing = false; this.result_highlighted = null; this.result_single_selected = null; this.choices = 0; this.single_temp = new Template('#{default}
'); this.multi_temp = new Template('
'); this.choice_temp = new Template('
  • #{choice}
  • '); return this.no_results_temp = new Template('
  • No results match "#{terms}"
  • '); }; Chosen.prototype.set_up_html = function() { var base_template, container_props, dd_top, dd_width, sf_width; this.container_id = this.form_field.identify().replace('.', '_') + "_chzn"; this.f_width = this.form_field.getStyle("width") ? parseInt(this.form_field.getStyle("width"), 10) : this.form_field.getWidth(); container_props = { 'id': this.container_id, 'class': 'chzn-container', 'style': 'width: ' + this.f_width + 'px' }; this.default_text = this.form_field.readAttribute('data-placeholder') ? this.form_field.readAttribute('data-placeholder') : this.default_text_default; base_template = this.is_multiple ? new Element('div', container_props).update(this.multi_temp.evaluate({ "default": this.default_text })) : new Element('div', container_props).update(this.single_temp.evaluate({ "default": this.default_text })); this.form_field.hide().insert({ after: base_template }); this.container = $(this.container_id); this.container.addClassName("chzn-container-" + (this.is_multiple ? "multi" : "single")); this.dropdown = this.container.down('div.chzn-drop'); dd_top = this.container.getHeight(); dd_width = this.f_width - get_side_border_padding(this.dropdown); this.dropdown.setStyle({ "width": dd_width + "px", "top": dd_top + "px" }); this.search_field = this.container.down('input'); this.search_results = this.container.down('ul.chzn-results'); this.search_field_scale(); this.search_no_results = this.container.down('li.no-results'); if (this.is_multiple) { this.search_choices = this.container.down('ul.chzn-choices'); this.search_container = this.container.down('li.search-field'); } else { this.search_container = this.container.down('div.chzn-search'); this.selected_item = this.container.down('.chzn-single'); sf_width = dd_width - get_side_border_padding(this.search_container) - get_side_border_padding(this.search_field); this.search_field.setStyle({ "width": sf_width + "px" }); } this.results_build(); return this.set_tab_index(); }; Chosen.prototype.register_observers = function() { this.container.observe("click", __bind(function(evt) { return this.container_click(evt); }, this)); this.container.observe("mouseenter", __bind(function(evt) { return this.mouse_enter(evt); }, this)); this.container.observe("mouseleave", __bind(function(evt) { return this.mouse_leave(evt); }, this)); this.search_results.observe("click", __bind(function(evt) { return this.search_results_click(evt); }, this)); this.search_results.observe("mouseover", __bind(function(evt) { return this.search_results_mouseover(evt); }, this)); this.search_results.observe("mouseout", __bind(function(evt) { return this.search_results_mouseout(evt); }, this)); this.form_field.observe("liszt:updated", __bind(function(evt) { return this.results_update_field(evt); }, this)); this.search_field.observe("blur", __bind(function(evt) { return this.input_blur(evt); }, this)); this.search_field.observe("keyup", __bind(function(evt) { return this.keyup_checker(evt); }, this)); this.search_field.observe("keydown", __bind(function(evt) { return this.keydown_checker(evt); }, this)); if (this.is_multiple) { this.search_choices.observe("click", __bind(function(evt) { return this.choices_click(evt); }, this)); return this.search_field.observe("focus", __bind(function(evt) { return this.input_focus(evt); }, this)); } else { return this.selected_item.observe("focus", __bind(function(evt) { return this.activate_field(evt); }, this)); } }; Chosen.prototype.container_click = function(evt) { if (evt && evt.type === "click") { evt.stop(); } if (!this.pending_destroy_click) { if (!this.active_field) { if (this.is_multiple) { this.search_field.clear(); } document.observe("click", this.click_test_action); this.results_show(); } else if (!this.is_multiple && evt && (evt.target === this.selected_item || evt.target.up("a.chzn-single"))) { this.results_toggle(); } return this.activate_field(); } else { return this.pending_destroy_click = false; } }; Chosen.prototype.mouse_enter = function() { return this.mouse_on_container = true; }; Chosen.prototype.mouse_leave = function() { return this.mouse_on_container = false; }; Chosen.prototype.input_focus = function(evt) { if (!this.active_field) { return setTimeout(this.container_click.bind(this), 50); } }; Chosen.prototype.input_blur = function(evt) { if (!this.mouse_on_container) { this.active_field = false; return setTimeout(this.blur_test.bind(this), 100); } }; Chosen.prototype.blur_test = function(evt) { if (!this.active_field && this.container.hasClassName("chzn-container-active")) { return this.close_field(); } }; Chosen.prototype.close_field = function() { document.stopObserving("click", this.click_test_action); if (!this.is_multiple) { this.selected_item.tabIndex = this.search_field.tabIndex; this.search_field.tabIndex = -1; } this.active_field = false; this.results_hide(); this.container.removeClassName("chzn-container-active"); this.winnow_results_clear(); this.clear_backstroke(); this.show_search_field_default(); return this.search_field_scale(); }; Chosen.prototype.activate_field = function() { if (!this.is_multiple && !this.active_field) { this.search_field.tabIndex = this.selected_item.tabIndex; this.selected_item.tabIndex = -1; } this.container.addClassName("chzn-container-active"); this.active_field = true; this.search_field.value = this.search_field.value; return this.search_field.focus(); }; Chosen.prototype.test_active_click = function(evt) { if (evt.target.up('#' + this.container_id)) { return this.active_field = true; } else { return this.close_field(); } }; Chosen.prototype.results_build = function() { var content, data, startTime, _i, _len, _ref; startTime = new Date(); this.parsing = true; this.results_data = SelectParser.select_to_array(this.form_field); if (this.is_multiple && this.choices > 0) { this.search_choices.select("li.search-choice").invoke("remove"); this.choices = 0; } else if (!this.is_multiple) { this.selected_item.down("span").update(this.default_text); } 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 if (!data.empty) { content += this.result_add_option(data); if (data.selected && this.is_multiple) { this.choice_build(data); } else if (data.selected && !this.is_multiple) { this.selected_item.down("span").update(data.html); } } } this.show_search_field_default(); this.search_field_scale(); this.search_results.update(content); return this.parsing = false; }; Chosen.prototype.result_add_group = function(group) { if (!group.disabled) { group.dom_id = this.container_id + "_g_" + group.array_index; return '
  • ' + group.label.escapeHTML() + '
  • '; } else { return ""; } }; Chosen.prototype.result_add_option = function(option) { var classes; if (!option.disabled) { option.dom_id = this.container_id + "_o_" + option.array_index; classes = option.selected && this.is_multiple ? [] : ["active-result"]; if (option.selected) { classes.push("result-selected"); } if (option.group_array_index != null) { classes.push("group-option"); } return '
  • ' + option.html + '
  • '; } else { return ""; } }; Chosen.prototype.results_update_field = function() { this.result_clear_highlight(); this.result_single_selected = null; return this.results_build(); }; Chosen.prototype.result_do_highlight = function(el) { var high_bottom, high_top, maxHeight, visible_bottom, visible_top; this.result_clear_highlight(); this.result_highlight = el; this.result_highlight.addClassName("highlighted"); maxHeight = parseInt(this.search_results.getStyle('maxHeight'), 10); visible_top = this.search_results.scrollTop; visible_bottom = maxHeight + visible_top; high_top = this.result_highlight.positionedOffset().top; high_bottom = high_top + this.result_highlight.getHeight(); 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.removeClassName('highlighted'); } return this.result_highlight = null; }; Chosen.prototype.results_toggle = function() { if (this.results_showing) { return this.results_hide(); } else { return this.results_show(); } }; Chosen.prototype.results_show = function() { var dd_top; if (!this.is_multiple) { this.selected_item.addClassName('chzn-single-with-drop'); if (this.result_single_selected) { this.result_do_highlight(this.result_single_selected); } } dd_top = this.is_multiple ? this.container.getHeight() : this.container.getHeight() - 1; this.dropdown.setStyle({ "top": dd_top + "px", "left": 0 }); this.results_showing = true; this.search_field.focus(); this.search_field.value = this.search_field.value; return this.winnow_results(); }; Chosen.prototype.results_hide = function() { if (!this.is_multiple) { this.selected_item.removeClassName('chzn-single-with-drop'); } this.result_clear_highlight(); this.dropdown.setStyle({ "left": "-9000px" }); 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; if (this.is_multiple) { return this.search_field.tabIndex = ti; } else { this.selected_item.tabIndex = ti; return this.search_field.tabIndex = -1; } } }; Chosen.prototype.show_search_field_default = function() { if (this.is_multiple && this.choices < 1 && !this.active_field) { this.search_field.value = this.default_text; return this.search_field.addClassName("default"); } else { this.search_field.value = ""; return this.search_field.removeClassName("default"); } }; Chosen.prototype.search_results_click = function(evt) { var target; target = evt.target.hasClassName("active-result") ? evt.target : evt.target.up(".active-result"); if (target) { this.result_highlight = target; return this.result_select(); } }; Chosen.prototype.search_results_mouseover = function(evt) { var target; target = evt.target.hasClassName("active-result") ? evt.target : evt.target.up(".active-result"); if (target) { return this.result_do_highlight(target); } }; Chosen.prototype.search_results_mouseout = function(evt) { if (evt.target.hasClassName('active-result') || evt.target.up('.active-result')) { return this.result_clear_highlight(); } }; Chosen.prototype.choices_click = function(evt) { evt.preventDefault(); if (this.active_field && !(evt.target.hasClassName('search-choice') || evt.target.up('.search-choice')) && !this.results_showing) { return this.results_show(); } }; Chosen.prototype.choice_build = function(item) { var choice_id, link; choice_id = this.container_id + "_c_" + item.array_index; this.choices += 1; this.search_container.insert({ before: this.choice_temp.evaluate({ id: choice_id, choice: item.html, position: item.array_index }) }); link = $(choice_id).down('a'); return link.observe("click", __bind(function(evt) { return this.choice_destroy_link_click(evt); }, this)); }; Chosen.prototype.choice_destroy_link_click = function(evt) { evt.preventDefault(); this.pending_destroy_click = true; return this.choice_destroy(evt.target); }; Chosen.prototype.choice_destroy = function(link) { this.choices -= 1; this.show_search_field_default(); if (this.is_multiple && this.choices > 0 && this.search_field.value.length < 1) { this.results_hide(); } this.result_deselect(link.readAttribute("rel")); return link.up('li').remove(); }; Chosen.prototype.result_select = function() { var high, item, position; if (this.result_highlight) { high = this.result_highlight; this.result_clear_highlight(); high.addClassName("result-selected"); if (this.is_multiple) { this.result_deactivate(high); } else { this.result_single_selected = high; } position = high.id.substr(high.id.lastIndexOf("_") + 1); item = this.results_data[position]; item.selected = true; this.form_field.options[item.options_index].selected = true; if (this.is_multiple) { this.choice_build(item); } else { this.selected_item.down("span").update(item.html); } this.results_hide(); this.search_field.value = ""; if (typeof Event.simulate === 'function') { this.form_field.simulate("change"); } return this.search_field_scale(); } }; Chosen.prototype.result_activate = function(el) { return el.addClassName("active-result").show(); }; Chosen.prototype.result_deactivate = function(el) { return el.removeClassName("active-result").hide(); }; Chosen.prototype.result_deselect = function(pos) { var result, result_data; result_data = this.results_data[pos]; result_data.selected = false; this.form_field.options[result_data.options_index].selected = false; result = $(this.container_id + "_o_" + pos); result.removeClassName("result-selected").addClassName("active-result").show(); this.result_clear_highlight(); this.winnow_results(); if (typeof Event.simulate === 'function') { this.form_field.simulate("change"); } return this.search_field_scale(); }; Chosen.prototype.results_search = function(evt) { if (this.results_showing) { return this.winnow_results(); } else { return this.results_show(); } }; Chosen.prototype.winnow_results = function() { var found, option, part, parts, regex, result_id, results, searchText, startTime, startpos, text, zregex, _i, _j, _len, _len2, _ref; startTime = new Date(); this.no_results_clear(); results = 0; searchText = this.search_field.value === this.default_text ? "" : this.search_field.value.strip().escapeHTML(); regex = new RegExp('^' + searchText.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&"), 'i'); zregex = new RegExp(searchText.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&"), 'i'); _ref = this.results_data; for (_i = 0, _len = _ref.length; _i < _len; _i++) { option = _ref[_i]; if (!option.disabled && !option.empty) { if (option.group) { $(option.dom_id).hide(); } else if (!(this.is_multiple && option.selected)) { found = false; result_id = option.dom_id; if (regex.test(option.html)) { found = true; results += 1; } else if (option.html.indexOf(" ") >= 0 || option.html.indexOf("[") === 0) { parts = option.html.replace(/\[|\]/g, "").split(" "); if (parts.length) { for (_j = 0, _len2 = parts.length; _j < _len2; _j++) { part = parts[_j]; if (regex.test(part)) { found = true; results += 1; } } } } if (found) { if (searchText.length) { startpos = option.html.search(zregex); text = option.html.substr(0, startpos + searchText.length) + '' + option.html.substr(startpos + searchText.length); text = text.substr(0, startpos) + '' + text.substr(startpos); } else { text = option.html; } if ($(result_id).innerHTML !== text) { $(result_id).update(text); } this.result_activate($(result_id)); if (option.group_array_index != null) { $(this.results_data[option.group_array_index].dom_id).show(); } } else { if ($(result_id) === this.result_highlight) { this.result_clear_highlight(); } this.result_deactivate($(result_id)); } } } } if (results < 1 && searchText.length) { return this.no_results(searchText); } else { return this.winnow_results_set_highlight(); } }; Chosen.prototype.winnow_results_clear = function() { var li, lis, _i, _len, _results; this.search_field.clear(); lis = this.search_results.select("li"); _results = []; for (_i = 0, _len = lis.length; _i < _len; _i++) { li = lis[_i]; _results.push(li.hasClassName("group-result") ? li.show() : !this.is_multiple || !li.hasClassName("result-selected") ? this.result_activate(li) : void 0); } return _results; }; Chosen.prototype.winnow_results_set_highlight = function() { var do_high; if (!this.result_highlight) { do_high = this.search_results.down(".active-result"); if (do_high) { return this.result_do_highlight(do_high); } } }; Chosen.prototype.no_results = function(terms) { return this.search_results.insert(this.no_results_temp.evaluate({ terms: terms })); }; Chosen.prototype.no_results_clear = function() { var nr, _results; nr = null; _results = []; while (nr = this.search_results.down(".no-results")) { _results.push(nr.remove()); } return _results; }; Chosen.prototype.keydown_arrow = function() { var actives, nexts, sibs; actives = this.search_results.select("li.active-result"); if (actives.length) { if (!this.result_highlight) { this.result_do_highlight(actives.first()); } else if (this.results_showing) { sibs = this.result_highlight.nextSiblings(); nexts = sibs.intersect(actives); if (nexts.length) { this.result_do_highlight(nexts.first()); } } if (!this.results_showing) { return this.results_show(); } } }; Chosen.prototype.keyup_arrow = function() { var actives, prevs, sibs; if (!this.results_showing && !this.is_multiple) { return this.results_show(); } else if (this.result_highlight) { sibs = this.result_highlight.previousSiblings(); actives = this.search_results.select("li.active-result"); prevs = sibs.intersect(actives); if (prevs.length) { return this.result_do_highlight(prevs.first()); } else { if (this.choices > 0) { this.results_hide(); } return this.result_clear_highlight(); } } }; Chosen.prototype.keydown_backstroke = function() { if (this.pending_backstroke) { this.choice_destroy(this.pending_backstroke.down("a")); return this.clear_backstroke(); } else { this.pending_backstroke = this.search_container.siblings("li.search-choice").last(); return this.pending_backstroke.addClassName("search-choice-focus"); } }; Chosen.prototype.clear_backstroke = function() { if (this.pending_backstroke) { this.pending_backstroke.removeClassName("search-choice-focus"); } return this.pending_backstroke = null; }; Chosen.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 > 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(); } break; case 27: if (this.results_showing) { return this.results_hide(); } break; case 9: case 38: case 40: case 16: break; default: return this.results_search(); } }; Chosen.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: return this.backstroke_length = this.search_field.value.length; case 9: return this.mouse_on_container = false; case 13: return evt.preventDefault(); case 38: evt.preventDefault(); return this.keyup_arrow(); case 40: return this.keydown_arrow(); } }; Chosen.prototype.search_field_scale = function() { var dd_top, div, h, style, style_block, styles, w, _i, _len; if (this.is_multiple) { h = 0; w = 0; style_block = "position:absolute; left: -1000px; top: -1000px; display:none;"; styles = ['font-size', 'font-style', 'font-weight', 'font-family', 'line-height', 'text-transform', 'letter-spacing']; for (_i = 0, _len = styles.length; _i < _len; _i++) { style = styles[_i]; style_block += style + ":" + this.search_field.getStyle(style) + ";"; } div = new Element('div', { 'style': style_block }).update(this.search_field.value.escapeHTML()); document.body.appendChild(div); w = Element.measure(div, 'width') + 25; div.remove(); if (w > this.f_width - 10) { w = this.f_width - 10; } this.search_field.setStyle({ 'width': w + 'px' }); dd_top = this.container.getHeight(); return this.dropdown.setStyle({ "top": dd_top + "px" }); } }; return Chosen; })(); root.Chosen = Chosen; document.observe('dom:loaded', function(evt) { var select, selects, _i, _len, _results; selects = $$(".chzn-select"); _results = []; for (_i = 0, _len = selects.length; _i < _len; _i++) { select = selects[_i]; _results.push(new Chosen(select)); } return _results; }); get_side_border_padding = function(elmt) { var layout, side_border_padding; layout = new Element.Layout(elmt); return side_border_padding = layout.get("border-left") + layout.get("border-right") + layout.get("padding-left") + layout.get("padding-right"); }; root.get_side_border_padding = get_side_border_padding; root = typeof exports !== "undefined" && exports !== null ? exports : this; SelectParser = (function() { function SelectParser() { this.options_index = 0; this.parsed = []; } SelectParser.prototype.add_node = function(child) { if (child.nodeName === "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: group.label, children: 0, disabled: group.disabled }); _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 === "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, selected: option.selected, disabled: group_disabled === true ? group_disabled : option.disabled, group_array_index: group_position }); } else { this.parsed.push({ array_index: this.parsed.length, options_index: this.options_index, empty: true }); } return this.options_index += 1; } }; 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; }; root.SelectParser = SelectParser; }).call(this);