git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@4572 6c8d7289-2bf4-0310-a012-ef5d649a1542pull/1/head
apfelmaennchen
17 years ago
parent
25f5035f23
commit
3c710f22cd
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.pagination {
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font-size: 1em;
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margin-left: 26px;
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margin-top: 25px;
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}
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.pagination a {
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text-decoration: none;
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border: solid 1px #AAE;
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color: #15B;
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}
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.pagination a, .pagination span {
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display: block;
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float: left;
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padding: 0.3em 0.5em;
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margin-right: 5px;
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margin-bottom: 5px;
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}
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.pagination .current {
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background: #26B;
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color: #fff;
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border: solid 1px #AAE;
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}
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.pagination .current.prev, .pagination .current.next{
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color:#999;
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border-color:#999;
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background:#fff;
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}
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@ -0,0 +1,166 @@
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/**
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* This jQuery plugin displays pagination links inside the selected elements.
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*
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* @author Gabriel Birke (birke *at* d-scribe *dot* de)
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* @version 1.1
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* @param {int} maxentries Number of entries to paginate
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* @param {Object} opts Several options (see README for documentation)
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* @return {Object} jQuery Object
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*/
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jQuery.fn.pagination = function(maxentries, opts){
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opts = jQuery.extend({
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items_per_page:10,
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num_display_entries:10,
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current_page:0,
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num_edge_entries:0,
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link_to:"#",
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prev_text:"Prev",
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next_text:"Next",
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ellipse_text:"...",
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prev_show_always:true,
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next_show_always:true,
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callback:function(){return false;}
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},opts||{});
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return this.each(function() {
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/**
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* Calculate the maximum number of pages
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*/
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function numPages() {
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return Math.ceil(maxentries/opts.items_per_page);
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}
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/**
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* Calculate start and end point of pagination links depending on
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* current_page and num_display_entries.
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* @return {Array}
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*/
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function getInterval() {
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var ne_half = Math.ceil(opts.num_display_entries/2);
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var np = numPages();
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var upper_limit = np-opts.num_display_entries;
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var start = current_page>ne_half?Math.max(Math.min(current_page-ne_half, upper_limit), 0):0;
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var end = current_page>ne_half?Math.min(current_page+ne_half, np):Math.min(opts.num_display_entries, np);
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return [start,end];
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}
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/**
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* This is the event handling function for the pagination links.
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* @param {int} page_id The new page number
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*/
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function pageSelected(page_id, evt){
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current_page = page_id;
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drawLinks();
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var continuePropagation = opts.callback(page_id, panel);
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if (!continuePropagation) {
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if (evt.stopPropagation) {
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evt.stopPropagation();
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}
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else {
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evt.cancelBubble = true;
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}
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}
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return continuePropagation;
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}
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/**
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* This function inserts the pagination links into the container element
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*/
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function drawLinks() {
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panel.empty();
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var interval = getInterval();
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var np = numPages();
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// This helper function returns a handler function that calls pageSelected with the right page_id
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var getClickHandler = function(page_id) {
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return function(evt){ return pageSelected(page_id,evt); }
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}
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// Helper function for generating a single link (or a span tag if it'S the current page)
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var appendItem = function(page_id, appendopts){
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page_id = page_id<0?0:(page_id<np?page_id:np-1); // Normalize page id to sane value
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appendopts = jQuery.extend({text:page_id+1, classes:""}, appendopts||{});
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if(page_id == current_page){
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var lnk = $("<span class='current'>"+(appendopts.text)+"</span>");
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}
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else
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{
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var lnk = $("<a>"+(appendopts.text)+"</a>")
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.bind("click", getClickHandler(page_id))
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.attr('href', opts.link_to.replace(/__id__/,page_id));
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}
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if(appendopts.classes){lnk.addClass(appendopts.classes);}
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panel.append(lnk);
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}
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// Generate "Previous"-Link
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if(opts.prev_text && (current_page > 0 || opts.prev_show_always)){
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appendItem(current_page-1,{text:opts.prev_text, classes:"prev"});
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}
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// Generate starting points
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if (interval[0] > 0 && opts.num_edge_entries > 0)
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{
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var end = Math.min(opts.num_edge_entries, interval[0]);
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for(var i=0; i<end; i++) {
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appendItem(i);
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}
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if(opts.num_edge_entries < interval[0] && opts.ellipse_text)
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{
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jQuery("<span>"+opts.ellipse_text+"</span>").appendTo(panel);
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}
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}
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// Generate interval links
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for(var i=interval[0]; i<interval[1]; i++) {
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appendItem(i);
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}
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// Generate ending points
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if (interval[1] < np && opts.num_edge_entries > 0)
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{
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if(np-opts.num_edge_entries > interval[1]&& opts.ellipse_text)
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{
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jQuery("<span>"+opts.ellipse_text+"</span>").appendTo(panel);
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}
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var begin = Math.max(np-opts.num_edge_entries, interval[1]);
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for(var i=begin; i<np; i++) {
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appendItem(i);
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}
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}
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// Generate "Next"-Link
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if(opts.next_text && (current_page < np-1 || opts.next_show_always)){
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appendItem(current_page+1,{text:opts.next_text, classes:"next"});
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}
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}
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// Extract current_page from options
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var current_page = opts.current_page;
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// Create a sane value for maxentries and items_per_page
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maxentries = (!maxentries || maxentries < 0)?1:maxentries;
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opts.items_per_page = (!opts.items_per_page || opts.items_per_page < 0)?1:opts.items_per_page;
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// Store DOM element for easy access from all inner functions
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var panel = jQuery(this);
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// Attach control functions to the DOM element
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this.selectPage = function(page_id){ pageSelected(page_id);}
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this.prevPage = function(){
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if (current_page > 0) {
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pageSelected(current_page - 1);
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return true;
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}
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else {
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return false;
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}
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}
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this.nextPage = function(){
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if(current_page < numPages()-1) {
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pageSelected(current_page+1);
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return true;
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}
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else {
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return false;
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}
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}
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// When all initialisation is done, draw the links
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drawLinks();
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});
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}
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