includes/clientside/static/paginate.js
author Dan Fuhry <dan@enanocms.org>
Thu, 28 Oct 2010 03:05:31 -0400
changeset 1308 f9bee9b125ee
parent 1227 bdac73ed481e
permissions -rw-r--r--
Parser updates. Added the "styled" keyword to wikitables to allow them to be styled using the current theme's standard table skinning, and changes to how the image tag parser decides how to display an image (framed, inline or raw).

// Javascript pagination control

/**
 * Paginates an array of data.
 * @param array List of objects to render
 * @param function Function called on each member of the array to render, should take an array member and set this.html to a string
 * @param int Optional. Object to start at, defaults to 0.
 * @param int Optional. Objects per page, defaults to 10
 * @param object Variable that will be passed to the renderer callback
 */
 
var pagin_objects = new Object();

window.paginator = function(data, callback, offset, perpage, passer, ov_num_pages, ov_flip_func)
{
	load_component('flyin');
	if ( !perpage || typeof(perpage) != 'number' || ( typeof(perpage) == 'number' && perpage < 1 ) )
	{
		this.perpage = 10;
	}
	else
	{
		this.perpage = perpage;
	}
	if ( typeof(offset) != 'number' )
		this.offset = 0;
	else
		this.offset = offset;
	if ( typeof(passer) != 'undefined' )
		this.passer = passer;
	else
		this.passer = false;
	if ( ov_num_pages )
	{
		this.num_pages = ov_num_pages;
		this.flip_func = ov_flip_func;
	}
	else
	{
		this.num_pages = Math.ceil(data.length / perpage);
		this.flip_func = false;
	}
	this.random_id = 'autopagin_' + Math.floor(Math.random() * 1000000);
	this._build_control = _build_paginator;
	this.set_page = function(number)
	{
		this.offset = number * this.perpage;
		var html = this._build_control(number);
		var elements = getElementsByClassName(document.body, 'div', this.random_id + '_control');
		for ( var i = 0; i < elements.length; i++ )
			elements[i].innerHTML = html;
	}
	if ( this.num_pages > 1 )
	{
		var pg_control = '<div class="'+this.random_id+'_control">'+this._build_control(0)+'</div>';
	}
	else
	{
		var pg_control = '';
	}
	this.html = pg_control;
	var i = 0;
	while ( i < data.length )
	{
		if ( i % this.perpage == 0 )
		{
			if ( i > 0 )
				this.html += '</div>';
			var display = ( ( i * this.perpage ) == this.offset ) ? '' : 'display: none;';
			var thispage = Math.floor(i / this.perpage);
			this.html += '<div id="' + this.random_id + '_' + thispage + '" style="' + display + '">';
		}
		this.html += callback(data[i], this.passer);
		i++;
	}
	this.html += '</div>';
	this.html += pg_control;
	pagin_objects[this.random_id] = this;
}

/**
 * Yet another demonstration of the fact that with the right tools, any amount of Javascript can be ported from PHP.
 * @access private
 */

window._build_paginator = function(this_page)
{
	var div_styling = ( IE ) ? 'width: 1px; margin: 10px auto 10px 0;' : 'display: table; margin: 10px 0 10px auto;';
	var begin = '<div class="tblholder" style="'+div_styling+'"><table border="0" cellspacing="1" cellpadding="4"><tr><th>' + $lang.get('paginate_lbl_page') + '</th>';
	var block = '<td class="row1" style="text-align: center; white-space: nowrap;">{LINK}</td>';
	var end = '</tr></table></div>';
	var blk = new templateParser(block);
	var inner = '';
	var cls = 'row2';
	
	if ( this_page > 0 )
	{
		var url = '#page_'+(this_page);
		var link = "<a href=\""+url+"\" onclick=\"jspaginator_goto('"+this.random_id+"', "+(this_page-1)+"); return false;\" style='text-decoration: none;'>&laquo; " + $lang.get('paginate_btn_prev') + "</a>";
		cls = ( cls == 'row1' ) ? 'row2' : 'row1';
		blk.assign_vars({
				CLASS: cls,
				LINK: link
			});
		inner += blk.run();
	}
	if ( this.num_pages < 5 )
	{
		for ( var i = 0; i < this.num_pages; i++ )
		{
			cls = ( cls == 'row1' ) ? 'row2' : 'row1';
			var j = i + 1;
			var url = '#page_'+j;
			var link = ( i == this_page ) ? "<b>"+j+"</b>" : "<a href=\""+url+"\" onclick=\"jspaginator_goto('"+this.random_id+"', "+i+"); return false;\" style='text-decoration: none;'>"+j+"</a>";
			blk.assign_vars({
					CLASS: cls,
					LINK: link
				});
			inner += blk.run();
		}
	}
	else
	{
		if ( this_page + 5 > this.num_pages )
		{
			var list = new Array();
			var tp = this_page;                    // The vectors below used to be 3, 2, and 1
			if ( this_page + 0 == this.num_pages ) tp = tp - 2;
			if ( this_page + 1 == this.num_pages ) tp = tp - 1;
			if ( this_page + 2 == this.num_pages ) tp = tp - 0;
			for ( var i = tp - 1; i <= tp + 1; i++ )
			{
				list.push(i);
			}
		}
		else
		{
			var list = new Array();
			var current = this_page;
			var lower = ( current < 3 ) ? 1 : current - 1;
			for ( var i = 0; i < 3; i++ )
			{
				list.push(lower + i);
			}
		}
		var url = '#page_1';
		var link = ( 0 == this_page ) ? "<b>" + $lang.get('paginate_btn_first') + "</b>" : "<a href=\""+url+"\" onclick=\"jspaginator_goto('"+this.random_id+"', 0); return false;\" style='text-decoration: none;'>&laquo; " + $lang.get('paginate_btn_first') + "</a>";
		blk.assign_vars({
				CLASS: cls,
				LINK: link
			});
		inner += blk.run();

		// if ( !in_array(1, $list) )
		// {
		//   $cls = ( $cls == 'row1' ) ? 'row2' : 'row1';
		//   $blk->assign_vars(array('CLASS'=>$cls,'LINK'=>'...'));
		//   $inner .= $blk->run();
		// }

		for ( var k in list )
		{
			var i = list[k];
			if ( i == this.num_pages )
				break;
			cls = ( cls == 'row1' ) ? 'row2' : 'row1';
			var j = i + 1;
			var url = '#page_'+j;
			var link = ( i == this_page ) ? "<b>"+j+"</b>" : "<a href=\""+url+"\" onclick=\"jspaginator_goto('"+this.random_id+"', "+i+"); return false;\" style='text-decoration: none;'>"+j+"</a>";
			blk.assign_vars({
					CLASS: cls,
					LINK: link
				});
			inner += blk.run();
		}

		if ( this_page < this.num_pages )
		{
			// $cls = ( $cls == 'row1' ) ? 'row2' : 'row1';
			// $blk->assign_vars(array('CLASS'=>$cls,'LINK'=>'...'));
			// $inner .= $blk->run();

			cls = ( cls == 'row1' ) ? 'row2' : 'row1';
			var url = '#page_' + String( this.num_pages-1 );
			var link = ( ( this.num_pages - 1 ) == this_page ) ? "<b>" + $lang.get('paginate_btn_last') + "</b>" : "<a href=\""+url+"\" onclick=\"jspaginator_goto('"+this.random_id+"', "+(this.num_pages-1)+"); return false;\" style='text-decoration: none;'>" + $lang.get('paginate_btn_last') + " &raquo;</a>";
			blk.assign_vars({
					CLASS: cls,
					LINK: link
				});
			inner += blk.run();
		}

	}

	if ( this_page < ( this.num_pages - 1 ) )
	{
		var url = '#page_' + String(this_page + 2);
		var link = "<a href=\""+url+"\" onclick=\"jspaginator_goto('"+this.random_id+"', "+(this_page+1)+"); return false;\" style='text-decoration: none;'>" + $lang.get('paginate_btn_next') + " &raquo;</a>";
		cls = ( cls == 'row1' ) ? 'row2' : 'row1';
		blk.assign_vars({
					CLASS: cls,
					LINK: link
				});
			inner += blk.run();
	}

	inner += '<td class="row2" style="cursor: pointer;" onclick="paginator_goto(this, '+this_page+', '+this.num_pages+', '+this.perpage+', {js: true, random_id: \''+this.random_id+'\'});">&darr;</td>';

	var paginator = "\n"+begin+inner+end+"\n";
	return paginator;
	
}

var __paginateLock = false;

window.jspaginator_goto = function(pagin_id, jump_to)
{
	if ( __paginateLock )
		return false;
	var theobj = pagin_objects[pagin_id];
	if ( theobj.flip_func )
	{
		theobj.flip_func(theobj, jump_to);
		__paginateLock = false;
		return true;
	}
	var current_div = false;
	var new_div = false;
	for ( var i = 0; i < theobj.num_pages; i++ )
	{
		var thediv = document.getElementById(pagin_id + '_' + i);
		if ( !thediv )
		{
			// if ( window.console )
				// window.console.error('jspaginator_goto(): got a bad DOM object in loop');
			return false;
		}
		// window.console.debug("Div "+i+' of '+(theobj.num_pages-1)+': ', thediv);
		if ( thediv.style.display != 'none' )
			current_div = thediv;
		else if ( i == jump_to )
			new_div = thediv;
	}
	
	if ( !new_div )
	{
		// if ( window.console )
			// window.console.error('jspaginator_goto(): didn\'t get new div');
		return false;
	}
	if ( !current_div )
	{
		// if ( window.console )
			// window.console.error('jspaginator_goto(): didn\'t get current div');
		return false;
	}
	
	// window.console.debug(current_div);
	// window.console.debug(new_div);
	
	// White-out the old div and fade in the new one
	
	if ( IE || is_Safari || aclDisableTransitionFX )
	{
		current_div.style.display = 'none';
		new_div.style.display = 'block';
	}
	else
	{
		__paginateLock = true;
		var fade_time = 375;
		var code = 'var old = \'' + current_div.id + '\';';
		code    += 'var newer = \'' + new_div.id + '\';';
		code    += 'document.getElementById(old).style.display = "none";';
		code    += 'changeOpac(0, newer);';
		code    += 'document.getElementById(newer).style.display = "block";';
		code    += 'opacity(newer, 0, 100, '+fade_time+');';
		code    += '__paginateLock = false;';
		// if ( window.console )
			// window.console.debug('metacode for fader: ', code);
		opacity(current_div.id, 100, 0, fade_time);
		setTimeout(code, (fade_time + 50));
	}
	
	
	var pg_control = theobj._build_control(jump_to);
	var divs = getElementsByClassName(document, 'div', pagin_id + '_control');
	for ( var i = 0; i < divs.length; i++ )
	{
		divs[i].innerHTML = pg_control;
	}
}

window.paginator_goto = function(parentobj, this_page, num_pages, perpage, additive, url_string)
{
	load_component('flyin');
	
	var height = $dynano(parentobj).Height();
	var width  = $dynano(parentobj).Width();
	var left   = $dynano(parentobj).Left();
	var top    = $dynano(parentobj).Top();
	var left_pos = left + width ;
	var top_pos = height + top;
	var div = document.createElement('div');
	div.style.position = 'absolute';
	div.style.top = top_pos + 'px';
	div.className = 'question-box';
	div.style.margin = '1px 0 0 2px';
	var vtmp = 'input_' + Math.floor(Math.random() * 1000000);
	var regex = new RegExp('\"', 'g');
	var submit_target = ( typeof(url_string) == 'object' ) ? ( toJSONString(url_string) ).replace(regex, '\'') : 'unescape(\'' + escape(url_string) + '\')';
	var onclick = 'paginator_submit(this, '+num_pages+', '+perpage+', '+additive+', '+submit_target+'); return false;';
	div.innerHTML = $lang.get('paginate_lbl_goto_page') + '<br /><input type="text" size="2" style="padding: 1px; font-size: 8pt;" value="'+(parseInt(this_page)+1)+'" id="'+vtmp+'" />&emsp;<a href="#" onclick="'+onclick+'" style="font-size: 14pt; text-decoration: none;">&raquo;</a>&emsp;<a href="#" onclick="var _pn = this.parentNode; setTimeout(function() { _pn.parentNode.removeChild(_pn); }, 2000); fly_out_top(this.parentNode, false, true); return false;" style="font-size: 14pt; text-decoration: none;">&times;</a>';
	
	var body = document.getElementsByTagName('body')[0];
	domObjChangeOpac(0, div);
	
	body.appendChild(div);
	
	document.getElementById(vtmp).onkeypress = function(e)
		{
			if ( e.keyCode == 13 )
				this.nextSibling.nextSibling.onclick();
		};
	document.getElementById(vtmp).focus();
	
	// fade the div
	/*
	if(!div.id) div.id = 'autofade_'+Math.floor(Math.random() * 100000);
	var from = '#33FF33';
	Fat.fade_element(div.id,30,2000,from,Fat.get_bgcolor(div.id));
	*/
	
	fly_in_bottom(div, false, true);
	
	var divh = $dynano(div).Width();
	left_pos = left_pos - divh;
	div.style.left = left_pos + 'px';
}

window.paginator_submit = function(obj, max, perpage, additive, formatstring)
{
	var userinput = obj.previousSibling.previousSibling.value;
	userinput = parseInt(userinput);
	var offset = (( userinput - 1 ) * perpage) + additive;
	if ( userinput > max || isNaN(userinput) || userinput < 1 )
	{
		load_component(['messagebox', 'fadefilter', 'flyin']);
		new MessageBox(MB_OK|MB_ICONSTOP, $lang.get('paginate_err_bad_page_title'), $lang.get('paginate_err_bad_page_body', { max: max }));
		return false;
	}
	if ( typeof(formatstring) == 'object' )
	{
		fly_out_top(obj.parentNode, false, true);
		jspaginator_goto(formatstring.random_id, ( offset / perpage ));
	}
	else
	{
		var url = sprintf(formatstring, String(offset));
		fly_out_top(obj.parentNode, false, true);
		window.location = url;
	}
}

// This code is in the public domain. Feel free to link back to http://jan.moesen.nu/
function sprintf()
{
	if (!arguments || arguments.length < 1 || !RegExp)
	{
		return;
	}
	var str = arguments[0];
	var re = /([^%]*)%('.|0|\x20)?(-)?(\d+)?(\.\d+)?(%|b|c|d|u|f|o|s|x|X)(.*)/;
	var a = b = [], numSubstitutions = 0, numMatches = 0;
	while (a = re.exec(str))
	{
		var leftpart = a[1], pPad = a[2], pJustify = a[3], pMinLength = a[4];
		var pPrecision = a[5], pType = a[6], rightPart = a[7];
		
		//alert(a + '\n' + [a[0], leftpart, pPad, pJustify, pMinLength, pPrecision);

		numMatches++;
		if (pType == '%')
		{
			subst = '%';
		}
		else
		{
			numSubstitutions++;
			if (numSubstitutions >= arguments.length)
			{
				alert('Error! Not enough function arguments (' + (arguments.length - 1) + ', excluding the string)\nfor the number of substitution parameters in string (' + numSubstitutions + ' so far).');
			}
			var param = arguments[numSubstitutions];
			var pad = '';
 						if (pPad && pPad.substr(0,1) == "'") pad = leftpart.substr(1,1);
				else if (pPad) pad = pPad;
			var justifyRight = true;
 						if (pJustify && pJustify === "-") justifyRight = false;
			var minLength = -1;
 						if (pMinLength) minLength = parseInt(pMinLength);
			var precision = -1;
 						if (pPrecision && pType == 'f') precision = parseInt(pPrecision.substring(1));
			var subst = param;
 						if (pType == 'b') subst = parseInt(param).toString(2);
				else if (pType == 'c') subst = String.fromCharCode(parseInt(param));
				else if (pType == 'd') subst = parseInt(param) ? parseInt(param) : 0;
				else if (pType == 'u') subst = Math.abs(param);
				else if (pType == 'f') subst = (precision > -1) ? Math.round(parseFloat(param) * Math.pow(10, precision)) / Math.pow(10, precision): parseFloat(param);
				else if (pType == 'o') subst = parseInt(param).toString(8);
				else if (pType == 's') subst = param;
				else if (pType == 'x') subst = ('' + parseInt(param).toString(16)).toLowerCase();
				else if (pType == 'X') subst = ('' + parseInt(param).toString(16)).toUpperCase();
		}
		str = leftpart + subst + rightPart;
	}
	return str;
}