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Plugins/pagination/extjs.js

138 lines
5.0 KiB
JavaScript

/**
* This pagination plug-in provides pagination controls for DataTables which
* match the style and interaction of the ExtJS library's grid component.
*
* @name ExtJS style
* @summary Pagination in the styling of ExtJS
* @author [Zach Curtis](http://zachariahtimothy.wordpress.com/)
*
* @example
* $(document).ready(function() {
* $('#example').dataTable( {
* "sPaginationType": "extStyle"
* } );
* } );
*/
$.fn.dataTableExt.oApi.fnExtStylePagingInfo = function ( oSettings )
{
return {
"iStart": oSettings._iDisplayStart,
"iEnd": oSettings.fnDisplayEnd(),
"iLength": oSettings._iDisplayLength,
"iTotal": oSettings.fnRecordsTotal(),
"iFilteredTotal": oSettings.fnRecordsDisplay(),
"iPage": oSettings._iDisplayLength === -1 ?
0 : Math.ceil( oSettings._iDisplayStart / oSettings._iDisplayLength ),
"iTotalPages": oSettings._iDisplayLength === -1 ?
0 : Math.ceil( oSettings.fnRecordsDisplay() / oSettings._iDisplayLength )
};
};
$.fn.dataTableExt.oPagination.extStyle = {
"fnInit": function (oSettings, nPaging, fnCallbackDraw) {
var oPaging = oSettings.oInstance.fnExtStylePagingInfo();
nFirst = $('<span/>', { 'class': 'paginate_button first' , text : "<<" });
nPrevious = $('<span/>', { 'class': 'paginate_button previous' , text : "<" });
nNext = $('<span/>', { 'class': 'paginate_button next' , text : ">" });
nLast = $('<span/>', { 'class': 'paginate_button last' , text : ">>" });
nPageTxt = $("<span />", { text: 'Page' });
nPageNumBox = $('<input />', { type: 'text', val: 1, 'class': 'pageinate_input_box' });
nPageOf = $('<span />', { text: '/' });
nTotalPages = $('<span />', { class : "paginate_total" , text : oPaging.iTotalPages });
$(nPaging)
.append(nFirst)
.append(nPrevious)
.append(nPageTxt)
.append(nPageNumBox)
.append(nPageOf)
.append(nTotalPages)
.append(nNext)
.append(nLast);
nFirst.click(function () {
if( $(this).hasClass("disabled") )
return;
oSettings.oApi._fnPageChange(oSettings, "first");
fnCallbackDraw(oSettings);
}).bind('selectstart', function () { return false; });
nPrevious.click(function () {
if( $(this).hasClass("disabled") )
return;
oSettings.oApi._fnPageChange(oSettings, "previous");
fnCallbackDraw(oSettings);
}).bind('selectstart', function () { return false; });
nNext.click(function () {
if( $(this).hasClass("disabled") )
return;
oSettings.oApi._fnPageChange(oSettings, "next");
fnCallbackDraw(oSettings);
}).bind('selectstart', function () { return false; });
nLast.click(function () {
if( $(this).hasClass("disabled") )
return;
oSettings.oApi._fnPageChange(oSettings, "last");
fnCallbackDraw(oSettings);
}).bind('selectstart', function () { return false; });
nPageNumBox.change(function () {
var pageValue = parseInt($(this).val(), 10) - 1 ; // -1 because pages are 0 indexed, but the UI is 1
var oPaging = oSettings.oInstance.fnPagingInfo();
if(pageValue === NaN || pageValue<0 ){
pageValue = 0;
}else if(pageValue >= oPaging.iTotalPages ){
pageValue = oPaging.iTotalPages -1;
}
oSettings.oApi._fnPageChange(oSettings, pageValue);
fnCallbackDraw(oSettings);
});
},
"fnUpdate": function (oSettings, fnCallbackDraw) {
if (!oSettings.aanFeatures.p) {
return;
}
var oPaging = oSettings.oInstance.fnExtStylePagingInfo();
/* Loop over each instance of the pager */
var an = oSettings.aanFeatures.p;
$(an).find('span.paginate_total').html(oPaging.iTotalPages);
$(an).find('.pageinate_input_box').val(oPaging.iPage+1);
$(an).each(function(index,item) {
var $item = $(item);
if (oPaging.iPage == 0) {
var prev = $item.find('span.paginate_button.first').add($item.find('span.paginate_button.previous'));
prev.addClass("disabled");
}else {
var prev = $item.find('span.paginate_button.first').add($item.find('span.paginate_button.previous'));
prev.removeClass("disabled");
}
if (oPaging.iPage+1 == oPaging.iTotalPages) {
var next = $item.find('span.paginate_button.last').add($item.find('span.paginate_button.next'));
next.addClass("disabled");
}else {
var next = $item.find('span.paginate_button.last').add($item.find('span.paginate_button.next'));
next.removeClass("disabled");
}
});
}
};