// HTML Truncator for jQuery
// by Henrik Nyh <http://henrik.nyh.se> 2008-02-28.
// Free to modify and redistribute with credit.
// Modified for removing more and less

(function($){

    var trailing_whitespace = true;
    
    $.fn.customTruncate = function(options){
    
        var opts = $.extend({}, $.fn.truncate.defaults, options);
        
        $(this).each(function(){
        
            var content_length = $.trim(squeeze($(this).text())).length;
            if (content_length <= opts.max_length) 
                return; // bail early if not overlong
            var actual_max_length = opts.max_length - opts.more.length;
            var truncated_node = recursivelyTruncate(this, actual_max_length);
			truncated_node.append(' <span>' + opts.more + '</span>');
			$(this).replaceWith(truncated_node);
            
        });
    }
    
    // Note that the " (…more)" bit counts towards the max length – so a max
    // length of 10 would truncate "1234567890" to "12 (…more)".
    $.fn.truncate.defaults = {
        max_length: 6000,
        more: '…',
        less: ''
    };
    
    function recursivelyTruncate(node, max_length){
        return (node.nodeType == 3) ? truncateText(node, max_length) : truncateNode(node, max_length);
    }
    
    function truncateNode(node, max_length){
        var node = $(node);
        var new_node = node.clone().empty();
        var truncatedChild;
        node.contents().each(function(){
            var remaining_length = max_length - new_node.text().length;
            if (remaining_length == 0) 
                return; // breaks the loop
            truncatedChild = recursivelyTruncate(this, remaining_length);
            if (truncatedChild) 
                new_node.append(truncatedChild);
        });
        return new_node;
    }
    
    function truncateText(node, max_length){
        var text = squeeze(node.data);
        if (trailing_whitespace) // remove initial whitespace if last text
            text = text.replace(/^ /, ''); // node had trailing whitespace.
        trailing_whitespace = !!text.match(/ $/);
        var text = text.slice(0, max_length);
        // Ensure HTML entities are encoded
        text = $('<div/>').text(text).html();
        return text;
    }
    
    // Collapses a sequence of whitespace into a single space.
    function squeeze(string){
        return string.replace(/\s+/g, ' ');
    }
    
    // Finds the last, innermost block-level element
    function findNodeForMore(node){
        var $node = $(node);
        var last_child = $node.children(":last");
        if (!last_child) 
            return node;
        var display = last_child.css('display');
        if (!display || display == 'inline') 
            return $node;
        return findNodeForMore(last_child);
    };
    
    
    
    })(jQuery);