jquery-1.2.6.extend.js

一些具有创新意义的电路

///<reference path="jquery.pack.js"/>

jQuery.extend({
  cookie:function(name,value,options)
  {
     if (typeof value != 'undefined') { // name and value given, set cookie
        options = options || {};
        if (value === null) {
            value = '';
            options.expires = -1;
        }
        var expires = '';
        if (options.expires && (typeof options.expires == 'number' || options.expires.toUTCString)) {
            var date;
            if (typeof options.expires == 'number') {
                date = new Date();
                date.setTime(date.getTime() + (options.expires * 24 * 60 * 60 * 1000));
            } else {
                date = options.expires;
            }
            expires = '; expires=' + date.toUTCString(); // use expires attribute, max-age is not supported by IE
        }        
        var path = options.path ? '; path=' + (options.path) : '';
        var domain = options.domain ? '; domain=' + (options.domain) : '';
        var secure = options.secure ? '; secure' : '';
        document.cookie = [name, '=', encodeURIComponent(value), expires, path, domain, secure].join('');
    } else { // only name given, get cookie
        var cookieValue = null;
        if (document.cookie && document.cookie != '') {
            var cookies = document.cookie.split(';');
            for (var i = 0; i < cookies.length; i++) {
                var cookie = jQuery.trim(cookies[i]);
                // Does this cookie string begin with the name we want?
                if (cookie.substring(0, name.length + 1) == (name + '=')) {
                    cookieValue = decodeURIComponent(cookie.substring(name.length + 1));
                    break;
                }
            }
        }
        return cookieValue;
    }
},
  format:function(format)
   {
    if ( arguments.length == 0 )
    {
        return '';
    }
    if ( arguments.length == 1 )
    {
        return String(format);
    }

    var strOutput = '';
    for ( var i=0 ; i < format.length-1 ; )
    {
        if ( format.charAt(i) == '{' && format.charAt(i+1) != '{' )
        {
            var index = 0, indexStart = i+1;
            for ( var j=indexStart ; j <= format.length-2 ; ++j )
            {
                var ch = format.charAt(j);
                if ( ch < '0' || ch > '9' ) break;
            }
            if ( j > indexStart )
            {
                if ( format.charAt(j) == '}' && format.charAt(j+1) != '}' )
                {
                     for ( var k=j-1 ; k >= indexStart ; k-- )
                     {
                         index += (format.charCodeAt(k)-48)*Math.pow(10, j-1-k);
                     }  
                    var swapArg = arguments[index+1];
                    strOutput += swapArg;
                    i += j-indexStart+2;
                    continue;
                }
            }
            strOutput += format.charAt(i);
            i++;
        }
        else
        {
            if ( ( format.charAt(i) == '{' && format.charAt(i+1) == '{' )
                || ( format.charAt(i) == '}' && format.charAt(i+1) == '}' ) )
            {
                i++
            }
            strOutput += format.charAt(i);
            i++;
        }
    }
    strOutput += format.substr(i);
    return strOutput;
 }
});



/**
* This jQuery plugin displays pagination links inside the selected elements.
*
* @author Gabriel Birke (birke *at* d-scribe *dot* de)
* @version 1.1
* @param {int} maxentries Number of entries to paginate
* @param {Object} opts Several options (see README for documentation)
* @return {Object} jQuery Object
*/
jQuery.fn.pagination = function(maxentries, opts) {
    opts = jQuery.extend({
        items_per_page: 10,
        num_display_entries: 10,
        current_page: 0,
        num_edge_entries: 0,
        link_to: "#",
        prev_text: "Prev",
        next_text: "Next",
        ellipse_text: "...",
        prev_show_always: true,
        next_show_always: true,
        callback: function() { return false; }
    }, opts || {});

    return this.each(function() {
        /**
        * Calculate the maximum number of pages
        */
        function numPages() {
            return Math.ceil(maxentries / opts.items_per_page);
        }

        /**
        * Calculate start and end point of pagination links depending on 
        * current_page and num_display_entries.
        * @return {Array}
        */
        function getInterval() {
            var ne_half = Math.ceil(opts.num_display_entries / 2);
            var np = numPages();
            var upper_limit = np - opts.num_display_entries;
            var start = current_page > ne_half ? Math.max(Math.min(current_page - ne_half, upper_limit), 0) : 0;
            var end = current_page > ne_half ? Math.min(current_page + ne_half, np) : Math.min(opts.num_display_entries, np);
            return [start, end];
        }

        /**
        * This is the event handling function for the pagination links. 
        * @param {int} page_id The new page number
        */
        function pageSelected(page_id, evt) {
            current_page = page_id;
            drawLinks();
            var continuePropagation = opts.callback(page_id, panel);
            if (!continuePropagation) {
                if (evt.stopPropagation) {
                    evt.stopPropagation();
                }
                else {
                    evt.cancelBubble = true;
                }
            }
            return continuePropagation;
        }

        /**
        * This function inserts the pagination links into the container element
        */
        function drawLinks() {
            panel.empty();
            var interval = getInterval();
            var np = numPages();
            // This helper function returns a handler function that calls pageSelected with the right page_id
            var getClickHandler = function(page_id) {
                return function(evt) { return pageSelected(page_id, evt); }
            }
            // Helper function for generating a single link (or a span tag if it'S the current page)
            var appendItem = function(page_id, appendopts) {
                page_id = page_id < 0 ? 0 : (page_id < np ? page_id : np - 1); // Normalize page id to sane value
                appendopts = jQuery.extend({ text: page_id + 1, classes: "" }, appendopts || {});
                if (page_id == current_page) {
                    var lnk = $("<span class='current'>" + (appendopts.text) + "</span>");
                }
                else {
                    var lnk = $("<a>" + (appendopts.text) + "</a>")
						.bind("click", getClickHandler(page_id))
						.attr('href', opts.link_to.replace(/__id__/, page_id));


                }
                if (appendopts.classes) { lnk.addClass(appendopts.classes); }
                panel.append(lnk);
            }
            // Generate "Previous"-Link
            if (opts.prev_text && (current_page > 0 || opts.prev_show_always)) {
                appendItem(current_page - 1, { text: opts.prev_text, classes: "prev" });
            }
            // Generate starting points
            if (interval[0] > 0 && opts.num_edge_entries > 0) {
                var end = Math.min(opts.num_edge_entries, interval[0]);
                for (var i = 0; i < end; i++) {
                    appendItem(i);
                }
                if (opts.num_edge_entries < interval[0] && opts.ellipse_text) {
                    jQuery("<span>" + opts.ellipse_text + "</span>").appendTo(panel);
                }
            }
            // Generate interval links
            for (var i = interval[0]; i < interval[1]; i++) {
                appendItem(i);
            }
            // Generate ending points
            if (interval[1] < np && opts.num_edge_entries > 0) {
                if (np - opts.num_edge_entries > interval[1] && opts.ellipse_text) {
                    jQuery("<span>" + opts.ellipse_text + "</span>").appendTo(panel);
                }
                var begin = Math.max(np - opts.num_edge_entries, interval[1]);
                for (var i = begin; i < np; i++) {
                    appendItem(i);
                }

            }
            // Generate "Next"-Link
            if (opts.next_text && (current_page < np - 1 || opts.next_show_always)) {
                appendItem(current_page + 1, { text: opts.next_text, classes: "next" });
            }
        }

        // Extract current_page from options
        var current_page = opts.current_page;
        // Create a sane value for maxentries and items_per_page
        maxentries = (!maxentries || maxentries < 0) ? 1 : maxentries;
        opts.items_per_page = (!opts.items_per_page || opts.items_per_page < 0) ? 1 : opts.items_per_page;
        // Store DOM element for easy access from all inner functions
        var panel = jQuery(this);
        // Attach control functions to the DOM element 
        this.selectPage = function(page_id) { pageSelected(page_id); }
        this.prevPage = function() {
            if (current_page > 0) {
                pageSelected(current_page - 1);
                return true;
            }
            else {
                return false;
            }
        }
        this.nextPage = function() {
            if (current_page < numPages() - 1) {
                pageSelected(current_page + 1);
                return true;
            }
            else {
                return false;
            }
        }
        // When all initialisation is done, draw the links
        drawLinks();
    });
}