'use strict';
/**
* @desc Instantiate in {@link ClassDatepicker}
* @class ClassYearPicker
* @instance
* @type {{cssClass: {selectedYear: string, yearItem: string}, events: {select: select}, _updateNavigator: _updateNavigator, hide: hide, show: show, next: next, prev: prev, selectYear: selectYear, updateView: updateView, _render: _render, init: init}}
*/
var ClassYearPicker = {
/**
* cssClass
*/
cssClass: {
selectedYear: "selected",
yearItem: "year-item",
disbaleItem: "year-item-disable"
},
/**
* events
*/
events: {
select: function () {
}
},
/**
*
* @private
*/
_updateNavigator: function () {
var self = this;
var year = self.datepicker.state.view.year;
self.datepicker.updateNavigator(self.titleFormatter(year));
return this;
},
/**
* @public
* @returns {Class_YearPicker}
*/
hide: function () {
this.container.hide();
return this;
},
/**
* @public
* @returns {Class_YearPicker}
*/
show: function () {
this.container.show();
this.updateView();
return this;
},
/**
* @public
* @returns {Class_YearPicker}
*/
next: function () {
var self = this;
self.datepicker.state.view.year += 12;
self._render().updateView();
return this;
},
/**
* @public
* @returns {Class_YearPicker}
*/
prev: function () {
var self = this;
self.datepicker.state.view.year -= 12;
self._render().updateView();
return this;
},
/**
* @public
*/
selectYear: function () {
this.updateView();
},
/**
* @public
* @returns {Class_YearPicker}
*/
updateView: function () {
var self = this;
self._render();
self.container.children("." + self.cssClass.yearItem).each(function () {
$(this).removeClass(self.cssClass.selectedYear);
if ($(this).data().year === self.datepicker.state.selected.year) {
$(this).addClass(self.cssClass.selectedYear);
}
});
self._updateNavigator();
return this;
},
/**
*
* @param y
* @returns {boolean}
* @private
*/
_checkYearAccess: function (y) {
if (this.datepicker.state._filetredDate) {
var startYear = this.datepicker.state.filterDate.start.year;
var endYear = this.datepicker.state.filterDate.end.year;
if (startYear <= y & y <= endYear) {
return true;
} else {
return false;
}
}else {
return this.datepicker.checkYear(y);
}
},
/**
*
* @returns {ClassMonthPicker}
* @private
*/
_attachEvents: function () {
var self = this;
if (this.scrollEnabled) {
$(this.container).mousewheel(function (event) {
if (event.deltaY > 0) {
self.next();
} else {
self.prev();
}
});
$(this.container).bind('mousewheel DOMMouseScroll', function (e) {
var scrollTo = null;
if (e.type == 'mousewheel') {
scrollTo = (e.originalEvent.wheelDelta * -1);
}
else if (e.type == 'DOMMouseScroll') {
scrollTo = 40 * e.originalEvent.detail;
}
if (scrollTo) {
e.preventDefault();
$(this).scrollTop(scrollTo + $(this).scrollTop());
}
});
}
return this;
},
/**
*
* @returns {Class_YearPicker}
* @private
*/
_render: function () {
var self = this;
var yearItem
, year = self.datepicker.state.view.year
, remaining = parseInt(year / 12) * 12;
self.container.children("." + self.cssClass.yearItem).remove();
var i;
for (i in range(12)) {
yearItem = $("<div/>")
.addClass(self.cssClass.yearItem)
.data({year: (remaining + parseInt(i))})
.text(self.datepicker._formatDigit(remaining + parseInt(i)))
.appendTo(self.container);
if (year === remaining + parseInt(i)) {
yearItem.addClass(self.cssClass.selectedYear);
}
if (self._checkYearAccess(remaining + parseInt(i))) {
yearItem.click(function () {
var y = $(this).data().year;
self.datepicker.selectYear(parseInt(y));
self.onSelect(y);
return false;
});
} else {
yearItem.addClass(self.cssClass.disbaleItem);
yearItem.click(function () {
return false;
});
}
}
return this;
},
/**
* @private
*/
init: function () {
this._render();
this._attachEvents();
return this;
}
};
var YearPicker = function (options, container) {
return inherit(this, [ClassSprite, ClassYearPicker, options, {
container: container
}]);
};