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