Difference between revisions of "MediaWiki:Common.js"

/* Any JavaScript here will be loaded for all users on every page load. */


function Pager(tableName, itemsPerPage) 
{
	this.tableName = tableName;
	this.itemsPerPage = itemsPerPage;
	this.currentPage = 1;
	this.pages = 0;
	this.inited = false;
	this.showRecords = function(from, to) {
	var rows = document.getElementById(tableName).rows;
	// i starts from 1 to skip table header row
	for (var i = 1; i < rows.length; i++) {
	if (i < from || i > to)
	rows[i].style.display = 'none';
	else
	rows[i].style.display = '';
	}
	}
	this.showPage = function(pageNumber) {
	if (! this.inited) {
	alert("not inited");
	return;
	}
	var oldPageAnchor = document.getElementById('pg'+this.currentPage);
	oldPageAnchor.className = 'pg-normal';
	this.currentPage = pageNumber;
	var newPageAnchor = document.getElementById('pg'+this.currentPage);
	newPageAnchor.className = 'pg-selected';
	var from = (pageNumber - 1) * itemsPerPage + 1;
	var to = from + itemsPerPage - 1;
	this.showRecords(from, to);
	}
	this.prev = function() {
	if (this.currentPage > 1)
	this.showPage(this.currentPage - 1);
	}
	this.next = function() {
	if (this.currentPage < this.pages) {
	this.showPage(this.currentPage + 1);
	}
	}
	this.init = function() {
	var rows = document.getElementById(tableName).rows;
	var records = (rows.length - 1);
	this.pages = Math.ceil(records / itemsPerPage);
	this.inited = true;
	}
	this.showPageNav = function(pagerName, positionId) {
	if (! this.inited) {
	alert("not inited");
	return;
	}
	var element = document.getElementById(positionId);
	var pagerHtml = '<span onclick="' + pagerName + '.prev();" class="pg-normal"> « Prev </span> ';
	for (var page = 1; page <= this.pages; page++)
	pagerHtml += '<span id="pg' + page + '" class="pg-normal" onclick="' + pagerName + '.showPage(' + page + ');">' + page + '</span> ';
	pagerHtml += '<span onclick="'+pagerName+'.next();" class="pg-normal"> Next »</span>';
	element.innerHTML = pagerHtml;
	}
}


window.onload = function Testing()
{	
  var mytable = document.getElementById('pubtable');
  mytable.style.border="4px solid green";
  
  var pager = new Pager('tablepaging', 5);
  pager.init();
  pager.showPageNav('pager', 'pageNavPosition');
  pager.showPage(1);

}