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lnapp/media/theme/bootstrap/js/bootstrap.selectpicker.js
2014-02-18 14:44:56 +11:00

481 lines
14 KiB
JavaScript

!function($) {
var Selectpicker = function(element, options, e) {
if (e) {
e.stopPropagation();
e.preventDefault();
}
this.$element = $(element);
this.$newElement = null;
this.button = null;
//Merge defaults, options and data-attributes to make our options
this.options = $.extend({}, $.fn.selectpicker.defaults, this.$element.data(), typeof options == 'object' && options);
//If we have no title yet, check the attribute 'title' (this is missed by jq as its not a data-attribute
if (this.options.title==null)
this.options.title = this.$element.attr('title');
//Expose public methods
this.val = Selectpicker.prototype.val;
this.render = Selectpicker.prototype.render;
this.refresh = Selectpicker.prototype.refresh;
this.selectAll = Selectpicker.prototype.selectAll;
this.deselectAll = Selectpicker.prototype.deselectAll;
this.init();
};
Selectpicker.prototype = {
constructor: Selectpicker,
init: function (e) {
if (!this.options.container) {
this.$element.hide();
} else {
this.$element.css('visibility','hidden');
};
this.multiple = this.$element.prop('multiple');
var classList = this.$element.attr('class') !== undefined ? this.$element.attr('class').split(/\s+/) : '';
var id = this.$element.attr('id');
this.$element.after( this.createView() );
this.$newElement = this.$element.next('.bootstrap-select');
if (this.options.container) {
this.selectPosition();
}
this.button = this.$newElement.find('> button');
if (id !== undefined) {
this.button.attr('id', id);
$('label[for="' + id + '"]').click($.proxy(this, function(){ this.$newElement.find('button#'+id).focus(); }))
}
for (var i = 0; i < classList.length; i++) {
if (classList[i] != 'selectpicker') {
this.$newElement.addClass(classList[i]);
}
}
//If we are multiple, then add the show-tick class by default
if (this.multiple) {
this.$newElement.addClass('show-tick');
}
this.button.addClass(this.options.style);
this.checkDisabled();
this.checkTabIndex();
this.clickListener();
//Listen for updates to the DOM and re render...
this.$element.bind('DOMNodeInserted DOMNodeRemoved', $.proxy(this.refresh, this));
this.render();
this.setSize();
},
createDropdown: function() {
var drop =
"<div class='btn-group bootstrap-select'>" +
"<button class='btn dropdown-toggle clearfix' data-toggle='dropdown'>" +
"<span class='filter-option pull-left'></span>&nbsp;" +
"<span class='caret'></span>" +
"</button>" +
"<ul class='dropdown-menu' role='menu'>" +
"</ul>" +
"</div>";
return $(drop);
},
createView: function() {
var $drop = this.createDropdown();
var $li = this.createLi();
$drop.find('ul').append($li);
return $drop;
},
reloadLi: function() {
//Remove all children.
this.destroyLi();
//Re build
$li = this.createLi();
this.$newElement.find('ul').append( $li );
},
destroyLi:function() {
this.$newElement.find('li').remove();
},
createLi: function() {
var _this = this;
var _li = [];
var _liA = [];
var _liHtml = '';
this.$element.find('option').each(function(){
_li.push($(this).text());
});
this.$element.find('option').each(function(index) {
//Get the class and text for the option
var optionClass = $(this).attr("class") !== undefined ? $(this).attr("class") : '';
var text = $(this).text();
var subtext = $(this).data('subtext') !== undefined ? '<small class="muted">'+$(this).data('subtext')+'</small>' : '';
//Append any subtext to the main text.
text+=subtext;
if ($(this).parent().is('optgroup') && $(this).data('divider') != true) {
if ($(this).index() == 0) {
//Get the opt group label
var label = $(this).parent().attr('label');
var labelSubtext = $(this).parent().data('subtext') !== undefined ? '<small class="muted">'+$(this).parent().data('subtext')+'</small>' : '';
label += labelSubtext;
if ($(this)[0].index != 0) {
_liA.push(
'<div class="div-contain"><div class="divider"></div></div>'+
'<dt>'+label+'</dt>'+ _this.createA(text, "opt " + optionClass )
);
} else {
_liA.push( '<dt>'+label+'</dt>'+ _this.createA(text, "opt " + optionClass ));
}
} else {
_liA.push( _this.createA(text, "opt " + optionClass ));
}
} else if ($(this).data('divider') == true) {
_liA.push('<div class="div-contain"><div class="divider"></div></div>');
} else {
_liA.push( _this.createA(text, optionClass ) );
}
});
if (_li.length > 0) {
for (var i = 0; i < _li.length; i++) {
var $option = this.$element.find('option').eq(i);
_liHtml += "<li rel=" + i + ">" + _liA[i] + "</li>";
}
}
//If we dont have a selected item, and we dont have a title, select the first element so something is set in the button
if (this.$element.find('option:selected').length==0 && !_this.options.title) {
this.$element.find('option').eq(0).prop('selected', true).attr('selected', 'selected');
}
return $(_liHtml);
},
createA:function(test, classes) {
return '<a tabindex="-1" href="#" class="'+classes+'">' +
'<span class="pull-left">' + test + '</span>' +
'<i class="icon-ok check-mark"></i>' +
'</a>';
},
render:function() {
var _this = this;
//Update the LI to match the SELECT
this.$element.find('option').each(function(index) {
_this.setDisabled(index, $(this).is(':disabled') || $(this).parent().is(':disabled') );
_this.setSelected(index, $(this).is(':selected') );
});
var selectedItems = this.$element.find('option:selected').map(function(index,value) {
if ($(this).attr('title')!=undefined) {
return $(this).attr('title');
} else {
return $(this).text();
}
}).toArray();
//Convert all the values into a comma delimited string
var title = selectedItems.join(", ");
//If this is multi select, and the selectText type is count, the show 1 of 2 selected etc..
if (_this.multiple && _this.options.selectedTextFormat.indexOf('count') > -1) {
var max = _this.options.selectedTextFormat.split(">");
if ( (max.length>1 && selectedItems.length > max[1]) || (max.length==1 && selectedItems.length>=2)) {
title = selectedItems.length +' of ' + this.$element.find('option').length + ' selected';
}
}
//If we dont have a title, then use the default, or if nothing is set at all, use the not selected text
if (!title) {
title = _this.options.title != undefined ? _this.options.title : _this.options.noneSelectedText;
}
_this.$newElement.find('.filter-option').html( title );
},
setSize:function() {
var _this = this;
var menu = this.$newElement.find('.dropdown-menu');
var menuA = menu.find('li > a');
var liHeight = this.$newElement.addClass('open').find('.dropdown-menu li > a').outerHeight();
this.$newElement.removeClass('open');
var divHeight = menu.find('li .divider').outerHeight(true);
var selectOffset_top = this.$newElement.offset().top;
var selectHeight = this.$newElement.outerHeight();
var menuPadding = parseInt(menu.css('padding-top')) + parseInt(menu.css('padding-bottom')) + parseInt(menu.css('border-top-width')) + parseInt(menu.css('border-bottom-width'));
if (this.options.size == 'auto') {
function getSize() {
var selectOffset_top_scroll = selectOffset_top - $(window).scrollTop();
var windowHeight = window.innerHeight;
var menuExtras = menuPadding + parseInt(menu.css('margin-top')) + parseInt(menu.css('margin-bottom')) + 2;
var selectOffset_bot = windowHeight - selectOffset_top_scroll - selectHeight - menuExtras;
menuHeight = selectOffset_bot;
if (_this.$newElement.hasClass('dropup')) {
menuHeight = selectOffset_top_scroll - menuExtras;
}
if ((menu.find('li').length + menu.find('dt').length) > 3) {
minHeight = liHeight*3 + menuExtras - 2;
} else {
minHeight = 0;
}
menu.css({'max-height' : menuHeight + 'px', 'overflow-y' : 'auto', 'min-height' : minHeight + 'px'});
}
getSize();
$(window).resize(getSize);
$(window).scroll(getSize);
} else if (this.options.size && this.options.size != 'auto' && menu.find('li').length > this.options.size) {
var optIndex = menu.find("li > *").filter(':not(.div-contain)').slice(0,this.options.size).last().parent().index();
var divLength = menu.find("li").slice(0,optIndex + 1).find('.div-contain').length;
menuHeight = liHeight*this.options.size + divLength*divHeight + menuPadding;
menu.css({'max-height' : menuHeight + 'px', 'overflow-y' : 'auto'});
}
//Set width of select
if (this.options.width == 'auto') {
this.$newElement.find('.dropdown-menu').css('min-width','0');
var ulWidth = this.$newElement.find('.dropdown-menu').css('width');
this.$newElement.css('width',ulWidth);
if (this.options.container) {
this.$element.css('width',ulWidth);
}
} else if (this.options.width && this.options.width != 'auto') {
this.$newElement.css('width',this.options.width);
if (this.options.container) {
this.$element.css('width',this.options.width);
}
}
},
selectPosition:function() {
var selectElementTop = this.$element.offset().top;
var selectElementLeft = this.$element.offset().left;
this.$newElement.appendTo(this.options.container);
this.$newElement.css({'position':'absolute', 'top':selectElementTop+'px', 'left':selectElementLeft+'px'});
},
refresh:function() {
this.reloadLi();
this.render();
this.setSize();
this.checkDisabled();
if (this.options.container) {
this.selectPosition();
}
},
setSelected:function(index, selected) {
if (selected) {
this.$newElement.find('li').eq(index).addClass('selected');
} else {
this.$newElement.find('li').eq(index).removeClass('selected');
}
},
setDisabled:function(index, disabled) {
if (disabled) {
this.$newElement.find('li').eq(index).addClass('disabled');
} else {
this.$newElement.find('li').eq(index).removeClass('disabled');
}
},
checkDisabled: function() {
if (this.$element.is(':disabled')) {
this.button.addClass('disabled');
this.button.click(function(e) {
e.preventDefault();
});
this.button.on('focusin', function() {
$(this).blur();
});
} else if (!this.$element.is(':disabled') && this.button.hasClass('disabled')) {
this.button.removeClass('disabled');
this.button.click(function() {
return true;
});
}
},
checkTabIndex: function() {
if (this.$element.is('[tabindex]')) {
var tabindex = this.$element.attr("tabindex");
this.button.attr('tabindex', tabindex);
}
},
clickListener: function() {
var _this = this;
$('body').on('touchstart.dropdown', '.dropdown-menu', function (e) { e.stopPropagation(); });
this.$newElement.on('click', 'li a', function(e) {
var clickedIndex = $(this).parent().index(),
$this = $(this).parent(),
$select = $this.parents('.bootstrap-select'),
prevIndex = _this.$element[0].selectedIndex;
//Dont close on multi choice menu
if (_this.multiple) {
e.stopPropagation();
}
e.preventDefault();
//Dont run if we have been disabled
if (_this.$element.not(':disabled') && !$(this).parent().hasClass('disabled')) {
//Deselect all others if not multi select box
if (!_this.multiple) {
_this.$element.find('option').removeAttr('selected');
_this.$element.find('option').eq(clickedIndex).prop('selected', true).attr('selected', 'selected');
//Else toggle the one we have chosen if we are multi selet.
} else {
var selected = _this.$element.find('option').eq(clickedIndex).prop('selected');
if (selected) {
_this.$element.find('option').eq(clickedIndex).removeAttr('selected');
} else {
_this.$element.find('option').eq(clickedIndex).prop('selected', true).attr('selected', 'selected');
}
}
$select.find('.filter-option').html($this.text());
$select.find('button').focus();
// Trigger select 'change'
if (prevIndex != clickedIndex) {
_this.$element.trigger('change');
}
_this.render();
}
});
this.$newElement.on('click', 'li.disabled a, li dt, li .div-contain', function(e) {
e.preventDefault();
e.stopPropagation();
$select = $(this).parent().parents('.bootstrap-select');
$select.find('button').focus();
});
this.$element.on('change', function(e) {
_this.render();
});
},
val:function(value) {
if (value!=undefined) {
this.$element.val( value );
this.$element.trigger('change');
return this.$element;
} else {
return this.$element.val();
}
},
selectAll:function() {
this.$element.find('option').prop('selected', true).attr('selected', 'selected');
this.render();
},
deselectAll:function() {
this.$element.find('option').prop('selected', false).removeAttr('selected');
this.render();
},
};
$.fn.selectpicker = function(option, event) {
//get the args of the outer function..
var args = arguments;
var value;
var chain = this.each(function () {
if ($(this).is('select')) {
var $this = $(this),
data = $this.data('selectpicker'),
options = typeof option == 'object' && option;
if (!data) {
$this.data('selectpicker', (data = new Selectpicker(this, options, event)));
} else if (options) {
for(var i in options) {
data.options[i]=options[i];
}
}
if (typeof option == 'string') {
//Copy the value of option, as once we shift the arguments
//it also shifts the value of option.
property = option;
if (data[property] instanceof Function) {
[].shift.apply(args);
value = data[property].apply(data, args);
} else {
value = data.options[property];
}
}
}
});
if (value!=undefined) {
return value;
} else {
return chain;
}
};
$.fn.selectpicker.defaults = {
style: null,
size: 'auto',
title: null,
selectedTextFormat : 'values',
noneSelectedText : 'Nothing selected',
width: null,
container: false
}
}(window.jQuery);
$('.selectpicker').selectpicker();