Now we move to step 2 .
step 2 : Use javascript to get information for slider
in this step ,we will add some javascript in the code of slider effect to get information on recent posts from blog feed and show this on slider .Slider above has two parts ,left and right, The part in the left show the post title ,post summary ,image in background . The right part show only title of posts .
To understand what is written in this post ,I suggest you read the part 1
In the code of slider ,right after the code of CSS ,insert this code
<script language="JavaScript">
imgr = new Array();
imgr[0] = "http://sites.google.com/site/fdblogsite/Home/nothumbnail.gif";
showRandomImg = true;
aBold = true;
summaryPost = 70; //
summaryTitle = 25; //
numposts = 5; //
home_page = "http://your_blog_url/";
label8 = "Feature";
tLabel8 = "Feature";
Title8 = "Feature";
function removeHtmlTag(strx,chop){
var s = strx.split("<");
for(var i=0;i<s.length;i++){
if(s[i].indexOf(">")!=-1){
s[i] = s[i].substring(s[i].indexOf(">")+1,s[i].length);
}
}
s = s.join("");
s = s.substring(0,chop-1);
return s;
}
function showrecentposts(json) {
j = (showRandomImg) ? Math.floor((imgr.length+1)*Math.random()) : 0;
img = new Array();
document.write('<ul class="slides-nav">');
for (var i = 0; i < numposts; i++) {
var entry = json.feed.entry[i];
var posttitle = entry.title.$t;
var pcm;
var posturl;
if (i == json.feed.entry.length) break;
for (var k = 0; k < entry.link.length; k++) {
if (entry.link[k].rel == 'alternate') {
posturl = entry.link[k].href;
break;
}
}
for (var k = 0; k < entry.link.length; k++) {
if (entry.link[k].rel == 'replies' && entry.link[k].type == 'text/html') {
pcm = entry.link[k].title.split(" ")[0];
break;
}
}
if ("content" in entry) {
var postcontent = entry.content.$t;}
else
if ("summary" in entry) {
var postcontent = entry.summary.$t;}
else var postcontent = "";
postdate = entry.published.$t;
if(j>imgr.length-1) j=0;
img[i] = imgr[j];
s = postcontent ; a = s.indexOf("<img"); b = s.indexOf("src=\"",a); c = s.indexOf("\"",b+5); d = s.substr(b+5,c-b-5);
if((a!=-1)&&(b!=-1)&&(c!=-1)&&(d!="")) img[i] = d;
//cmtext = (text != 'no') ? '<i><font color="'+acolor+'">('+pcm+' '+text+')</font></i>' : '';
var month = [1,2,3,4,5,6,7,8,9,10,11,12];
var month2 = ["Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"];
var day = postdate.split("-")[2].substring(0,2);
var m = postdate.split("-")[1];
var y = postdate.split("-")[0];
for(var u2=0;u2<month.length;u2++){
if(parseInt(m)==month[u2]) {
m = month2[u2] ; break;
}
}
//var daystr = (showPostDate) ? '<i><font color="'+acolor+'"> - ('+day+ ' ' + m + ' ' + y + ')</font></i>' : "";
posttitle = (aBold) ? ""+posttitle+"" : posttitle;
var trtd = ' <li id="post-'+i+'" class="clearfix"> <a href="#main-post-'+i+'" class=""><img height="150px" width="150px" class="post_thumbnail thumbnail thumbnail post_thumbnail" alt="This is a Full-Width Post Without Sidebars" src="'+img[i]+'"/>'+posttitle+'<br/> '+m+','+day+','+y+' </a> </li> ';
document.write(trtd);
j++;
}
document.write('</ul>');
}
function showrecentposts1(json) {
j = (showRandomImg) ? Math.floor((imgr.length+1)*Math.random()) : 0;
img = new Array();
document.write('<ul class="clearfix" style="position: relative;">');
for (var i = 0; i < numposts; i++) {
var entry = json.feed.entry[i];
var posttitle = entry.title.$t;
var pcm;
var posturl;
if (i == json.feed.entry.length) break;
for (var k = 0; k < entry.link.length; k++) {
if (entry.link[k].rel == 'alternate') {
posturl = entry.link[k].href;
break;
}
}
for (var k = 0; k < entry.link.length; k++) {
if (entry.link[k].rel == 'replies' && entry.link[k].type == 'text/html') {
pcm = entry.link[k].title.split(" ")[0];
break;
}
}
if ("content" in entry) {
var postcontent = entry.content.$t;}
else
if ("summary" in entry) {
var postcontent = entry.summary.$t;}
else var postcontent = "";
postdate = entry.published.$t;
if(j>imgr.length-1) j=0;
img[i] = imgr[j];
s = postcontent ; a = s.indexOf("<img"); b = s.indexOf("src=\"",a); c = s.indexOf("\"",b+5); d = s.substr(b+5,c-b-5);
if((a!=-1)&&(b!=-1)&&(c!=-1)&&(d!="")) img[i] = d;
//cmtext = (text != 'no') ? '<i><font color="'+acolor+'">('+pcm+' '+text+')</font></i>' : '';
var month = [1,2,3,4,5,6,7,8,9,10,11,12];
var month2 = ["Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"];
var day = postdate.split("-")[2].substring(0,2);
var m = postdate.split("-")[1];
var y = postdate.split("-")[0];
for(var u2=0;u2<month.length;u2++){
if(parseInt(m)==month[u2]) {
m = month2[u2] ; break;
}
}
//var daystr = (showPostDate) ? '<i><font color="'+acolor+'"> - ('+day+ ' ' + m + ' ' + y + ')</font></i>' : "";
posttitle = (aBold) ? ""+posttitle+"" : posttitle;
var trtd = '<li style="background: transparent url('+img[i]+')" id="main-post-'+i+'"><div class="entry"><h2 class="post-title"><a href="'+posturl+'">'+posttitle+'</a></h2> <p>'+removeHtmlTag(postcontent,summaryPost)+'</p></div></li> ';
document.write(trtd);
j++;
}
document.write('</ul>');
}
</script>
this code contain three function , removeHtmlTag,showrecentposts and showrecentposts1
removehtmltag is function for creating post summary .
showrecentposts is function for creating the left part of slider
and showrecentposts1 is the function for creating the right part of slider .
you may notice some variables at the beginning of the code
summaryPost = 70; //
summaryTitle = 25; //
numposts = 5; //
home_page = "http://your_blog_url/";
label8 = "Feature";
tLabel8 = "Feature";
Title8 = "Feature";
summarypost =70 mean the maximum length of post summary is 70 letters
summarytitle =25 mean the maximum length of post title in slider is 25 letters
numposts = 5 mean the number of posts in slider is 5 maximum
home_page is the variable for url of your blog .
value of label8,tlabel8 and title8 variables are the label of your blog in which you want to show posts in .
in the code of slider ,replace this
<ul class="clearfix" style="position: relative;">
<li id="main-post-1" style="background: transparent url(URL-Image1) " >
<div class="entry"><h2 class="post-title"><a href="link to entry1">title of entry 1</a></h2>
<p>post summary of entry 1</p></div>
</li>
<li id="main-post-2" style="background: transparent url(URL-Image2) " >
<div class="entry"><h2 class="post-title"><a href="link to entry2">title of entry 2</a></h2>
<p>post summary of entry 2</p></div>
</li>
<li id="main-post-3" style="background: transparent url(URL-Image3) " >
<div class="entry"><h2 class="post-title"><a href="link to entry3">title of entry 3</a></h2>
<p>post summary of entry 3</p></div>
</li>
<li id="main-post-4" style="background: transparent url(URL-Image4) " >
<div class="entry"><h2 class="post-title"><a href="link to entry4">title of entry 4</a></h2>
<p>post summary of entry 4</p></div>
</li>
<li id="main-post-5" style="background: transparent url(URL-Image5) " >
<div class="entry"><h2 class="post-title"><a href="link to entry5">title of entry 5</a></h2>
<p>post summary of entry 5</p></div>
</li>
</ul>
by this one :
<script language="JavaScript">
document.write("<script src=\""+home_page+"feeds/posts/default/-/"+label8+"?max-results="+numposts+"&orderby=published&alt=json-in-script&callback=showrecentposts\"><\/script>");
</script>
and find this code :
<ul class="slides-nav">
<li class="clearfix" id="post-1"> <a class="" href="#main-post-1"><img width="150px" height="150px" src="thumbnail of post 1" class="thumbnail"/>title of post 1</li>
<li class="clearfix" id="post-2"> <a class="" href="#main-post-2"><img width="150px" height="150px" src="thumbnail of post 2" class="thumbnail"/>title of post 2</li>
<li class="clearfix" id="post-3"> <a class="" href="#main-post-3"><img width="150px" height="150px" src="thumbnail of post 3" class="thumbnail"/>title of post 3</li>
<li class="clearfix" id="post-4"> <a class="" href="#main-post-4"><img width="150px" height="150px" src="thumbnail of post 4" class="thumbnail"/>title of post 4</li>
<li class="clearfix" id="post-5"> <a class="" href="#main-post-5"><img width="150px" height="150px" src="thumbnail of post 5" class="thumbnail"/>title of post 5</li>
</ul>
replace it by :
<script language="JavaScript">
document.write("<script src=\""+home_page+"feeds/posts/default/-/"+label8+"?max-results="+numposts+"&orderby=published&alt=json-in-script&callback=showrecentposts1\"><\/script>");
</script>
Ok,save widget and you are done .
in operating ,the code will get the information of recent posts and write it out in HTML tags format. After that ,the code of slider effect will put all HTML tags it got on slider .
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