272 lines
8.8 KiB
JavaScript
272 lines
8.8 KiB
JavaScript
/**
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* jQuery Editable Select
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* Indri Muska <indrimuska@gmail.com>
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*
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* Source on GitHub @ https://github.com/indrimuska/jquery-editable-select
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*/
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+(function($) {
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// jQuery Editable Select
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EditableSelect = function(select, options) {
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var that = this;
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if(select.nodeName == "SELECT") {
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var inputProperties = {
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type: "text",
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autocomplete: "off"
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};
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//Add the user input properties to the ones specified above.
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if(options.inputProperties && options.inputProperties instanceof Object) $.extend(inputProperties, options.inputProperties);
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this.$select = $(select);
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this.$input = $('<input/>', inputProperties);
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//Replace the select with an input widget in the view.
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this.$select.replaceWith(this.$input);
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}
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else if(select.nodeName == "INPUT") {
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this.$select = undefined;
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this.$input = $(select);
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}
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//Save the options.
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this.options = options;
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//Add the list to the input's parent or the appendTo in the options.
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this.$list = $('<ul class="es-list">');
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this.$list.appendTo(this.options.appendTo || this.$input.parent());
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this.utility = new EditableSelectUtility(this);
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//If the trigger is not focus or manual, then default it to focus.
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if(['focus', 'manual'].indexOf(this.options.trigger) < 0) this.options.trigger = 'focus';
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//Set the default transition.
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if(['default', 'fade', 'slide'].indexOf(this.options.effects) < 0) this.options.effects = 'default';
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//Ensure the duration is a number, fast, or slow, defaulting to fast.
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if(isNaN(this.options.duration) || ['fast', 'slow'].indexOf(this.options.duration) < 0) this.options.duration = 'fast';
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// initalization
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this.utility.initialize();
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this.utility.initializeList();
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this.utility.initializeInput();
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this.utility.trigger('created');
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this.$select.data('editable-select', this);
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};
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EditableSelect.DEFAULTS = { filter: true, effects: 'default', duration: 'fast', trigger: 'focus' };
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EditableSelect.prototype.filter = function() {
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var hiddens = 0;
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var search = this.$input.val().toLowerCase().trim();
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this.$list.find('li').addClass('es-visible').show();
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if(this.options.filter) {
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hiddens = this.$list.find('li').filter(function (i, li) { return $(li).text().toLowerCase().indexOf(search) < 0; }).hide().removeClass('es-visible').length;
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if (this.$list.find('li').length == hiddens) this.hide();
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}
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};
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EditableSelect.prototype.show = function() {
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this.$list.css({
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top: this.$input.position().top + this.$input.outerHeight() - 1,
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left: this.$input.position().left,
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width: this.$input.outerWidth()
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});
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if (!this.$list.is(':visible') && this.$list.find('li.es-visible').length > 0) {
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var fns = { default: 'show', fade: 'fadeIn', slide: 'slideDown' };
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var fn = fns[this.options.effects];
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this.utility.trigger('show');
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this.$input.addClass('open');
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this.$list[fn](this.options.duration, $.proxy(this.utility.trigger, this.utility, 'shown'));
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}
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};
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EditableSelect.prototype.hide = function() {
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var fns = { default: 'hide', fade: 'fadeOut', slide: 'slideUp' };
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var fn = fns[this.options.effects];
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this.utility.trigger('hide');
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this.$input.removeClass('open');
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this.$list[fn](this.options.duration, $.proxy(this.utility.trigger, this.utility, 'hidden'));
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};
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EditableSelect.prototype.select = function($li) {
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if (!this.$list.has($li) || !$li.is('li.es-visible')) return;
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this.$input.val($li.text());
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this.hide();
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this.filter();
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this.utility.trigger('select', $li);
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};
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EditableSelect.prototype.add = function(text, index, attrs, data) {
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var $li = $('<li>');
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$li.html(text);
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var $option = $('<option>');
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$option.text(text);
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var last = this.$list.find('li').length;
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if(isNaN(index)) index = last;
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else index = Math.min(Math.max(0, index), last);
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if(index == 0) {
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this.$list.prepend($li);
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if(this.$select) this.$select.prepend($option);
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}
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else {
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this.$list.find('li').eq(index - 1).after($li);
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if(this.$select) this.$select.find('option').eq(index - 1).after($option);
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}
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this.utility.setAttributes($li, attrs, data);
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this.utility.setAttributes($option, attrs, data);
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this.filter();
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};
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EditableSelect.prototype.remove = function(index) {
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var last = this.$list.find('li').length;
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if (isNaN(index)) index = last;
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else index = Math.min(Math.max(0, index), last - 1);
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this.$list.find('li').eq(index).remove();
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if(this.$select) this.$select.find('option').eq(index).remove();
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this.filter();
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};
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EditableSelect.prototype.destroy = function () {
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this.$list.off('mousemove mousedown mouseup');
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this.$input.off('focus blur input keydown');
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this.$input.replaceWith(this.$select);
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this.$list.remove();
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if(this.$select) this.$select.removeData('editable-select');
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};
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// Utility
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EditableSelectUtility = function(es) {
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this.es = es;
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};
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EditableSelectUtility.prototype.initialize = function() {
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var that = this;
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if(this.es.$select) that.setAttributes(that.es.$input, that.es.$select[0].attributes, that.es.$select.data());
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//that.es.$input.addClass('es-input');
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that.es.$input.data('editable-select', that.es);
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if(this.es.$select) that.es.$select.find('option').each(function (i, option) {
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var $option = $(option).remove();
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that.es.add($option.text(), i, option.attributes, $option.data());
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if ($option.attr('selected')) that.es.$input.val($option.text());
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});
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that.es.filter();
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};
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EditableSelectUtility.prototype.initializeList = function() {
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var that = this;
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that.es.$list
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.on('mousemove', 'li', function () {
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that.es.$list.find('.selected').removeClass('selected');
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$(this).addClass('selected');
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})
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.on('mousedown', 'li', function () {
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that.es.select($(this));
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})
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.on('mouseup', function () {
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that.es.$list.find('li.selected').removeClass('selected');
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});
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};
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EditableSelectUtility.prototype.initializeInput = function() {
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var that = this;
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switch (this.es.options.trigger) {
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default:
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case 'focus':
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that.es.$input
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.on('focus', $.proxy(that.es.show, that.es))
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.on('blur', $.proxy(that.es.hide, that.es));
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break;
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case 'manual':
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break;
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}
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that.es.$input.on('input keydown', function (e) {
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switch (e.keyCode) {
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case 38: // Up
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var visibles = that.es.$list.find('li.es-visible');
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var selected = visibles.index(visibles.filter('li.selected')) || 0;
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that.highlight(selected - 1);
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e.preventDefault();
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break;
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case 40: // Down
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var visibles = that.es.$list.find('li.es-visible');
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var selected = visibles.index(visibles.filter('li.selected')) || 0;
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that.highlight(selected + 1);
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e.preventDefault();
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break;
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case 13: // Enter
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if (that.es.$list.is(':visible')) {
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that.es.select(that.es.$list.find('li.selected'));
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e.preventDefault();
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}
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case 9: // Tab
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case 27: // Esc
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that.es.hide();
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break;
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default:
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that.es.filter();
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that.highlight(0);
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break;
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}
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});
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};
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EditableSelectUtility.prototype.highlight = function(index) {
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var that = this;
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that.es.show();
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setTimeout(function() {
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var visibles = that.es.$list.find('li.es-visible');
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var oldSelected = that.es.$list.find('li.selected').removeClass('selected');
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var oldSelectedIndex = visibles.index(oldSelected);
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if (visibles.length > 0) {
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var selectedIndex = (visibles.length + index) % visibles.length;
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var selected = visibles.eq(selectedIndex);
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var top = selected.position().top;
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selected.addClass('selected');
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if(selectedIndex < oldSelectedIndex && top < 0)
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that.es.$list.scrollTop(that.es.$list.scrollTop() + top);
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if(selectedIndex > oldSelectedIndex && top + selected.outerHeight() > that.es.$list.outerHeight())
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that.es.$list.scrollTop(that.es.$list.scrollTop() + selected.outerHeight() + 2 * (top - that.es.$list.outerHeight()));
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}
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});
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};
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EditableSelectUtility.prototype.setAttributes = function ($element, attrs, data) {
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if(attrs && attrs instanceof Object) $.each({}, function (i, attr) { $element.attr(attr.name, attr.value); });
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if(data && data instanceof Object) $element.data(data);
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};
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EditableSelectUtility.prototype.trigger = function (event) {
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var params = Array.prototype.slice.call(arguments, 1);
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var args = [event + '.editable-select'];
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args.push(params);
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if(this.es.$select) this.es.$select.trigger.apply(this.es.$select, args);
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this.es.$input.trigger.apply(this.es.$input, args);
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};
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// Plugin
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Plugin = function (option) {
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var args = Array.prototype.slice.call(arguments, 1);
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return this.each(function () {
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var $this = $(this);
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var data = $this.data('editable-select');
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var options = $.extend({}, EditableSelect.DEFAULTS, $this.data(), typeof option == 'object' && option);
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if(!data) data = new EditableSelect(this, options);
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if(typeof option == 'string') data[option].apply(data, args);
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});
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};
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$.fn.editableSelect = Plugin;
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$.fn.editableSelect.Constructor = EditableSelect;
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})(jQuery); |