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(function($){
$.fn.stoc = function(options) {
//Our default options
var defaults = {
search: "body", //where we will search for titles
depth: 6, //how many hN should we search
start: 1, //which hN will be the first (and after it we go just deeper)
stocTitle: "<h2>Contents</h2>", //what to display before our box
listType: "ul", //could be ul or ol
smoothScroll: 1
};
//let's extend our plugin with default or user options when defined
var options = $.extend(defaults, options);
return this.each(function() {
//"cache" our target and search objects
obj = $(this); //target
src = $(options.search); //search
//let's declare some variables. We need this var declaration to create them as local variables (not global)
var appHTML = "", tagNumber = 0, txt = "", id = "", before = "", after = "", previous = options.start, start = options.start, depth = options.depth, i = 0, srcTags = "h" + options.start, cacheHN = "";
//which tags we will search
while ( depth > 1) {
start++; //we will just get our start level and numbers higher than it
srcTags = srcTags + ", h" + start;
depth--; //since went one level up, our depth will go one level down
}
src.find(srcTags).each(function() {
//we will cache our current H element
cacheHN = $(this);
//if we are on h1, 2, 3...
tagNumber = ( cacheHN.get(0).tagName ).substr(1);
//sets the needed id to the element
id = cacheHN.attr('id');
if (id == null || id == "") { //if it doesn't have only, of course
id = "h" + tagNumber + "_" + i;
cacheHN.attr('id', id);
}
//our current text
txt = cacheHN.text();
switch(true) { //with switch(true) we can do comparisons in each case
case (tagNumber > previous) : //it means that we went down one level (e.g. from h2 to h3)
appHTML = appHTML + "<" + options.listType +"><li>"+ before +"<a href=\"#"+ id + "\">" + txt + "</a>";
previous = tagNumber;
break;
case (tagNumber == previous) : //it means that stay on the same level (e.g. h3 and stay on it)
appHTML = appHTML + "</li><li>"+ before +"<a href=\"#"+ id + "\">" + txt + "</a>";
break;
case (tagNumber < previous) : //it means that we went up but we don't know how much levels (e.g. from h3 to h2)
while(tagNumber != previous) {
appHTML = appHTML + "</" + options.listType +"></li>";
previous--;
}
appHTML = appHTML + "<li>"+ before +"<a href=\"#"+ id + "\">" + txt + "</a></li>";
break;
}
i++;
});
//corrects our last item, because it may have some opened ul's
while(tagNumber != options.start) {
appHTML = appHTML + "</" + options.listType +">";
tagNumber--;
}
//append our html to our object
appHTML = options.stocTitle + "<"+ options.listType + ">" + appHTML + "</" + options.listType + ">";
obj.append(appHTML);
//our pretty smooth scrolling here
// acctually I've just compressed the code so you guys will think that I'm the man . Source: http://css-tricks.com/snippets/jquery/smooth-scrolling/
if (options.smoothScroll == 1) {
$(window).load(function(){
function filterPath(string){return string.replace(/^\//,'').replace(/(index|default).[a-zA-Z]{3,4}$/,'').replace(/\/$/,'')}var locationPath=filterPath(location.pathname);var scrollElem=scrollableElement('html','body');obj.find('a[href*=#]').each(function(){var thisPath=filterPath(this.pathname)||locationPath;if(locationPath==thisPath&&(location.hostname==this.hostname||!this.hostname)&&this.hash.replace(/#/,'')){var $target=$(this.hash),target=this.hash;if(target){var targetOffset=$target.offset().top;$(this).click(function(event){event.preventDefault();$(scrollElem).animate({scrollTop:targetOffset},400,function(){location.hash=target})})}}});function scrollableElement(els){for(var i=0,argLength=arguments.length;i<argLength;i++){var el=arguments[i],$scrollElement=$(el);if($scrollElement.scrollTop()>0){return el}else{$scrollElement.scrollTop(1);var isScrollable=$scrollElement.scrollTop()>0;$scrollElement.scrollTop(0);if(isScrollable){return el}}}return[]}
});
}
});
};
})(jQuery);
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