frontend/dcmgr_gui/public/javascripts/ui.selectmenu.js
/*
* jQuery UI selectmenu
*
* Copyright (c) 2009 AUTHORS.txt (http://jqueryui.com/about)
* Dual licensed under the MIT (MIT-LICENSE.txt)
* and GPL (GPL-LICENSE.txt) licenses.
*
* http://docs.jquery.com/UI
*/
(function($) {
$.widget("ui.selectmenu", {
_init: function() {
var self = this, o = this.options;
var menu_toggle_flag = 0;
//quick array of button and menu id's
this.ids = [this.element.attr('id') + '-' + 'button', this.element.attr('id') + '-' + 'menu'];
//define safe mouseup for future toggling
this._safemouseup = true;
//create menu button wrapper
this.newelement = $('<a class="'+ this.widgetBaseClass +' ui-widget ui-state-default ui-corner-all" id="'+this.ids[0]+'" role="button" href="#" aria-haspopup="true" aria-owns="'+this.ids[1]+'"></a>')
.insertAfter(this.element);
//transfer tabindex
var tabindex = this.element.attr('tabindex');
if(tabindex){ this.newelement.attr('tabindex', tabindex); }
//save reference to select in data for ease in calling methods
this.newelement.data('selectelement', this.element);
//menu icon
this.selectmenuIcon = $('<span class="'+ this.widgetBaseClass +'-icon ui-icon"></span>')
.prependTo(this.newelement)
.addClass( (o.style == "popup")? 'ui-icon-triangle-2-n-s' : 'ui-icon-triangle-1-s' );
//make associated form label trigger focus
$('label[for='+this.element.attr('id')+']')
.attr('for', this.ids[0])
.bind('click', function(){
self.newelement[0].focus();
return false;
});
//click toggle for menu visibility
this.newelement
.bind('mousedown', function(event){
self._toggle(event);
//make sure a click won't open/close instantly
if(o.style == "popup"){
self._safemouseup = false;
setTimeout(function(){self._safemouseup = true;}, 300);
}
if(menu_toggle_flag == 1) {
self.closeMenu();
menu_toggle_flag = 0;
} else {
menu_toggle_flag = 1;
}
return false;
})
.bind('click',function(){
return false;
})
.keydown(function(event){
var ret = true;
switch (event.keyCode) {
case $.ui.keyCode.ENTER:
ret = true;
break;
case $.ui.keyCode.SPACE:
ret = false;
self._toggle(event);
break;
case $.ui.keyCode.UP:
case $.ui.keyCode.LEFT:
ret = false;
self._moveSelection(-1);
break;
case $.ui.keyCode.DOWN:
case $.ui.keyCode.RIGHT:
ret = false;
self._moveSelection(1);
break;
case $.ui.keyCode.TAB:
ret = true;
break;
default:
ret = false;
self._typeAhead(event.keyCode, 'mouseup');
break;
}
return ret;
})
.bind('mouseover focus', function(){
$(this).addClass(self.widgetBaseClass+'-focus ui-state-hover');
})
.bind('mouseout blur', function(){
$(this).removeClass(self.widgetBaseClass+'-focus ui-state-hover');
});
//document click closes menu
$(document)
.mousedown(function(event){
self.close(event);
});
$(document).click(function(event){
if(menu_toggle_flag == 1) {
self.closeMenu();
menu_toggle_flag = 0;
}
});
//change event on original selectmenu
this.element
.click(function(){ this._refreshValue(); })
.focus(function(){ this.newelement[0].focus(); });
//create menu portion, append to body
var cornerClass = (o.style == "dropdown")? " ui-corner-bottom" : " ui-corner-all"
this.list = $('<ul class="' + self.widgetBaseClass + '-menu ui-widget ui-widget-content'+cornerClass+'" aria-hidden="true" role="listbox" aria-labelledby="'+this.ids[0]+'" id="'+this.ids[1]+'"></ul>').appendTo('body');
//serialize selectmenu element options
var selectOptionData = [];
this.element
.find('option')
.each(function(){
selectOptionData.push({
value: $(this).attr('value'),
text: self._formatText(jQuery(this).text()),
selected: $(this).attr('selected'),
classes: $(this).attr('class'),
parentOptGroup: $(this).parent('optgroup').attr('label')
});
});
//active state class is only used in popup style
var activeClass = (self.options.style == "popup") ? " ui-state-active" : "";
//write li's
$.each(selectOptionData, function(i){
var thisLi = $('<li role="presentation"><a href="#" tabindex="-1" role="option" aria-selected="false">'+ selectOptionData[i].text +'</a></li>')
.data('index',i)
.addClass(selectOptionData[i].classes)
.data('optionClasses', selectOptionData[i].classes|| '')
.mouseup(function(event){
if(self._safemouseup){
var changed = $(this).data('index') != self._selectedIndex();
self.value($(this).data('index'));
self.select(event);
if(changed){ self.change(event); }
self.close(event,true);
}
return false;
})
.click(function(){
return false;
})
.bind('mouseover focus', function(){
self._selectedOptionLi().addClass(activeClass);
self._focusedOptionLi().removeClass(self.widgetBaseClass+'-item-focus ui-state-hover');
$(this).removeClass('ui-state-active').addClass(self.widgetBaseClass + '-item-focus ui-state-hover');
})
.bind('mouseout blur', function(){
if($(this).is( self._selectedOptionLi() )){ $(this).addClass(activeClass); }
$(this).removeClass(self.widgetBaseClass + '-item-focus ui-state-hover');
});
//optgroup or not...
if(selectOptionData[i].parentOptGroup){
var optGroupName = self.widgetBaseClass + '-group-' + selectOptionData[i].parentOptGroup;
if(self.list.find('li.' + optGroupName).size()){
self.list.find('li.' + optGroupName + ':last ul').append(thisLi);
}
else{
$('<li role="presentation" class="'+self.widgetBaseClass+'-group '+optGroupName+'"><span class="'+self.widgetBaseClass+'-group-label">'+selectOptionData[i].parentOptGroup+'</span><ul></ul></li>')
.appendTo(self.list)
.find('ul')
.append(thisLi);
}
}
else{
thisLi.appendTo(self.list);
}
//self.allows for using the scrollbar in an overflowed list
self.list.bind('mousedown mouseup', function(){return false;});
//append icon if option is specified
if(o.icons){
for(var j in o.icons){
if(thisLi.is(o.icons[j].find)){
thisLi
.data('optionClasses', selectOptionData[i].classes + ' ' + self.widgetBaseClass + '-hasIcon')
.addClass(self.widgetBaseClass + '-hasIcon');
var iconClass = o.icons[j].icon || "";
thisLi
.find('a:eq(0)')
.prepend('<span class="'+self.widgetBaseClass+'-item-icon ui-icon '+iconClass + '"></span>');
}
}
}
});
//add corners to top and bottom menu items
this.list.find('li:last').addClass("ui-corner-bottom");
if(o.style == 'popup'){ this.list.find('li:first').addClass("ui-corner-top"); }
//transfer classes to selectmenu and list
if(o.transferClasses){
var transferClasses = this.element.attr('class') || '';
this.newelement.add(this.list).addClass(transferClasses);
}
//original selectmenu width
var selectWidth = this.element.width();
//set menu button width
this.newelement.width( (o.width) ? o.width : selectWidth);
//set menu width to either menuWidth option value, width option value, or select width
if(o.style == 'dropdown'){ this.list.width( (o.menuWidth) ? o.menuWidth : ((o.width) ? o.width : selectWidth)); }
else { this.list.width( (o.menuWidth) ? o.menuWidth : ((o.width) ? o.width - o.handleWidth : selectWidth - o.handleWidth)); }
//set max height from option
if(o.maxHeight && o.maxHeight < this.list.height()){ this.list.height(o.maxHeight); }
//save reference to actionable li's (not group label li's)
this._optionLis = this.list.find('li:not(.'+ self.widgetBaseClass +'-group)');
//transfer menu click to menu button
this.list
.keydown(function(event){
var ret = true;
switch (event.keyCode) {
case $.ui.keyCode.UP:
case $.ui.keyCode.LEFT:
ret = false;
self._moveFocus(-1);
break;
case $.ui.keyCode.DOWN:
case $.ui.keyCode.RIGHT:
ret = false;
self._moveFocus(1);
break;
case $.ui.keyCode.HOME:
ret = false;
self._moveFocus(':first');
break;
case $.ui.keyCode.PAGE_UP:
ret = false;
self._scrollPage('up');
break;
case $.ui.keyCode.PAGE_DOWN:
ret = false;
self._scrollPage('down');
break;
case $.ui.keyCode.END:
ret = false;
self._moveFocus(':last');
break;
case $.ui.keyCode.ENTER:
case $.ui.keyCode.SPACE:
ret = false;
self.close(event,true);
$(event.target).parents('li:eq(0)').trigger('mouseup');
break;
case $.ui.keyCode.TAB:
ret = true;
self.close(event,true);
break;
case $.ui.keyCode.ESCAPE:
ret = false;
self.close(event,true);
break;
default:
ret = false;
self._typeAhead(event.keyCode,'focus');
break;
}
return ret;
});
//selectmenu style
if(o.style == 'dropdown'){
this.newelement
.addClass(self.widgetBaseClass+"-dropdown");
this.list
.addClass(self.widgetBaseClass+"-menu-dropdown");
}
else {
this.newelement
.addClass(self.widgetBaseClass+"-popup");
this.list
.addClass(self.widgetBaseClass+"-menu-popup");
}
//append status span to button
this.newelement.prepend('<span class="'+self.widgetBaseClass+'-status">'+ selectOptionData[this._selectedIndex()].text +'</span>');
//hide original selectmenu element
this.element.hide();
//transfer disabled state
if(this.element.attr('disabled') == true){ this.disable(); }
//update value
this.value(this._selectedIndex());
},
destroy: function() {
this.element.removeData(this.widgetName)
.removeClass(this.widgetBaseClass + '-disabled' + ' ' + this.namespace + '-state-disabled')
.removeAttr('aria-disabled');
//unbind click on label, reset its for attr
$('label[for='+this.newelement.attr('id')+']')
.attr('for',this.element.attr('id'))
.unbind('click');
this.newelement.remove();
this.list.remove();
this.element.show();
},
_typeAhead: function(code, eventType){
var self = this;
//define self._prevChar if needed
if(!self._prevChar){ self._prevChar = ['',0]; }
var C = String.fromCharCode(code);
c = C.toLowerCase();
var focusFound = false;
function focusOpt(elem, ind){
focusFound = true;
$(elem).trigger(eventType);
self._prevChar[1] = ind;
};
this.list.find('li a').each(function(i){
if(!focusFound){
var thisText = $(this).text();
if( thisText.indexOf(C) == 0 || thisText.indexOf(c) == 0){
if(self._prevChar[0] == C){
if(self._prevChar[1] < i){ focusOpt(this,i); }
}
else{ focusOpt(this,i); }
}
}
});
this._prevChar[0] = C;
},
_uiHash: function(){
return {
value: this.value()
};
},
open: function(event){
var self = this;
var disabledStatus = this.newelement.attr("aria-disabled");
if(disabledStatus != 'true'){
this._refreshPosition();
this._closeOthers(event);
this.newelement
.addClass('ui-state-active');
this.list
.appendTo('body')
.addClass(self.widgetBaseClass + '-open')
.attr('aria-hidden', false)
.find('li:not(.'+ self.widgetBaseClass +'-group):eq('+ this._selectedIndex() +') a')[0].focus();
if(this.options.style == "dropdown"){ this.newelement.removeClass('ui-corner-all').addClass('ui-corner-top'); }
this._refreshPosition();
this._trigger("open", event, this._uiHash());
}
},
close: function(event, retainFocus){
if(this.newelement.is('.ui-state-active')){
this.newelement
.removeClass('ui-state-active');
this.list
.attr('aria-hidden', true)
.removeClass(this.widgetBaseClass+'-open');
if(this.options.style == "dropdown"){ this.newelement.removeClass('ui-corner-top').addClass('ui-corner-all'); }
if(retainFocus){this.newelement[0].focus();}
this._trigger("close", event, this._uiHash());
}
},
change: function(event) {
this.element.trigger('change');
this._trigger("change", event, this._uiHash());
},
select: function(event) {
this._trigger("select", event, this._uiHash());
},
_closeOthers: function(event){
$('.'+ this.widgetBaseClass +'.ui-state-active').not(this.newelement).each(function(){
$(this).data('selectelement').selectmenu('close',event);
});
$('.'+ this.widgetBaseClass +'.ui-state-hover').trigger('mouseout');
},
_toggle: function(event,retainFocus){
if(this.list.is('.'+ this.widgetBaseClass +'-open')){ this.close(event,retainFocus); }
else { this.open(event); }
},
_formatText: function(text){
return this.options.format ? this.options.format(text) : text;
},
_selectedIndex: function(){
return this.element[0].selectedIndex;
},
_selectedOptionLi: function(){
return this._optionLis.eq(this._selectedIndex());
},
_focusedOptionLi: function(){
return this.list.find('.'+ this.widgetBaseClass +'-item-focus');
},
_moveSelection: function(amt){
var currIndex = parseInt(this._selectedOptionLi().data('index'), 10);
var newIndex = currIndex + amt;
return this._optionLis.eq(newIndex).trigger('mouseup');
},
_moveFocus: function(amt){
if(!isNaN(amt)){
var currIndex = parseInt(this._focusedOptionLi().data('index'), 10);
var newIndex = currIndex + amt;
}
else { var newIndex = parseInt(this._optionLis.filter(amt).data('index'), 10); }
if(newIndex < 0){ newIndex = 0; }
if(newIndex > this._optionLis.size()-1){
newIndex = this._optionLis.size()-1;
}
var activeID = this.widgetBaseClass + '-item-' + Math.round(Math.random() * 1000);
this._focusedOptionLi().find('a:eq(0)').attr('id','');
this._optionLis.eq(newIndex).find('a:eq(0)').attr('id',activeID)[0].focus();
this.list.attr('aria-activedescendant', activeID);
},
_scrollPage: function(direction){
var numPerPage = Math.floor(this.list.outerHeight() / this.list.find('li:first').outerHeight());
numPerPage = (direction == 'up') ? -numPerPage : numPerPage;
this._moveFocus(numPerPage);
},
_setData: function(key, value) {
this.options[key] = value;
if (key == 'disabled') {
this.close();
this.element
.add(this.newelement)
.add(this.list)
[value ? 'addClass' : 'removeClass'](
this.widgetBaseClass + '-disabled' + ' ' +
this.namespace + '-state-disabled')
.attr("aria-disabled", value);
}
},
value: function(newValue) {
if (arguments.length) {
this.element[0].selectedIndex = newValue;
this._refreshValue();
this._refreshPosition();
}
return this.element[0].selectedIndex;
},
_refreshValue: function() {
var activeClass = (this.options.style == "popup") ? " ui-state-active" : "";
var activeID = this.widgetBaseClass + '-item-' + Math.round(Math.random() * 1000);
//deselect previous
this.list
.find('.'+ this.widgetBaseClass +'-item-selected')
.removeClass(this.widgetBaseClass + "-item-selected" + activeClass)
.find('a')
.attr('aria-selected', 'false')
.attr('id', '');
//select new
this._selectedOptionLi()
.addClass(this.widgetBaseClass + "-item-selected"+activeClass)
.find('a')
.attr('aria-selected', 'true')
.attr('id', activeID);
//toggle any class brought in from option
var currentOptionClasses = this.newelement.data('optionClasses') ? this.newelement.data('optionClasses') : "";
var newOptionClasses = this._selectedOptionLi().data('optionClasses') ? this._selectedOptionLi().data('optionClasses') : "";
this.newelement
.removeClass(currentOptionClasses)
.data('optionClasses', newOptionClasses)
.addClass( newOptionClasses )
.find('.'+this.widgetBaseClass+'-status')
.html(
this._selectedOptionLi()
.find('a:eq(0)')
.html()
);
this.list.attr('aria-activedescendant', activeID)
},
_refreshPosition: function(){
//set left value
this.list.css('left', this.newelement.offset().left);
//set top value
var menuTop = this.newelement.offset().top;
var scrolledAmt = this.list[0].scrollTop;
this.list.find('li:lt('+this._selectedIndex()+')').each(function(){
scrolledAmt -= $(this).outerHeight();
});
if(this.newelement.is('.'+this.widgetBaseClass+'-popup')){
menuTop+=scrolledAmt;
this.list.css('top', menuTop);
}
else {
menuTop += this.newelement.height();
this.list.css('top', menuTop);
}
},
enableButton: function(){
this.newelement.button({disabled: false})
this.newelement.removeClass('ui-button');
this.newelement.removeClass('ui-button-text-only');
var self = this;
this.element.bind('change', function(){
var select_menu = $(self.list[0]);
select_menu.removeClass('ui-selectmenu-open');
var button = $(self.newelement);
button.addClass('ui-corner-all');
})
},
disableButton: function(){
this.newelement.button({disabled: true})
this.newelement.removeClass('ui-button');
this.newelement.removeClass('ui-button-text-only')
},
closeMenu: function(){
var select_menu = $(this.list[0]);
select_menu.removeClass('ui-selectmenu-open');
var button = $(this.newelement);
button.addClass('ui-corner-all');
}
});
$.extend($.ui.selectmenu, {
getter: "value",
version: "@VERSION",
eventPrefix: "selectmenu",
defaults: {
transferClasses: true,
style: 'popup',
width: null,
menuWidth: null,
handleWidth: 26,
maxHeight: null,
icons: null,
format: null
}
});
})(jQuery);