// ==UserScript==
// @name Blogger Trackback
// @description Enable sending trackback pings from within Blogger (Version: 0.11)
// @namespace http://singpolyma-tech.blogspot.com/
// @include http://www.blogger.com/post-*
// @include http://blogger.com/post-*
// @include http://blogger.com/blog-this.g*
// @include http://blogger.com/publish-body*
// @include http://www.blogger.com/blog-this.g*
// @include http://www.blogger.com/publish-body*
// ==/UserScript==
//Author: Stephen Paul Weber a.k.a. Singpolyma <http://singpolyma-tech.blogspot.com/>
//Much of this code was borrowed from similar code by Johan Sundström <http://ecmanaut.blogspot.com/>
if( location.pathname.match( 'publish-body.g' ) ) {
showTrackback();
} else {
add_events();
}
function trap( node, event, handler )
{
if(!node || typeof(node) == 'undefined') return;
var original = node.getAttribute( 'on'+event );
if( original )
node.setAttribute( 'on'+event, 'setTimeout("'+original+'",100)' );
node.addEventListener( event, handler, false );
}
function $()
{
for( var i = 0, node; i < arguments.length; i++ )
if( node = document.getElementById( arguments[i] ) )
return node;
}
function getFields()
{
var nodes = { head : $( 'titles', 'otherFields' ),
body : $( 'textarea', 'postBody' ),
title: $( 'f-title', 'title' ),
link : $( 'f-address', 'url' ),
draft: $( 'saveDraft' ),
save : $( 'publishPost' ) }, toolbar, tds, i;
if( !nodes.draft && (toolbar = $( 'toolbar' )) )
{
tds = toolbar.getElementsByTagName( 'td' );
for( i=0; i<tds.length; i++ )
if( tds[i].textContent.match( /draft/i ) )
nodes.draft = tds[i];
else if( tds[i].textContent.match( /publish/i ) )
nodes.save = tds[i];
}
return nodes;
}
function stripHTML(str) {
if(!str) return '';
return str.replace(/(<([^>]+)>)/ig,"");
}//end striphtml
function getName()
{
var name = $( 'blogname' );
if( name )
name = name.textContent;
else if( name = $( 'stuffform' ) )
{
name = name.elements.namedItem( 'selBlog' );
name = name[name.selectedIndex].text;
}
else
return;
return name;
}
function saveData(e) {
var divs = getFields();
var txt = $( 'textarea' ).value;
txt = stripHTML(txt);
txt = txt.substr(0,200);
txt += '...';
var data = { 'title' : divs.title ? divs.title.value : '',
'excerpt' : txt,
'blog_name' : getName()
};
GM_setValue( 'postdata-trackback-title', data.title );
GM_setValue( 'postdata-trackback-excerpt', data.excerpt );
GM_setValue( 'postdata-trackback-blog_name', data.blog_name );
}//end function saveData
function add_events() {
var divs = getFields();
trap( divs.save, 'click', saveData );
}//end function add_events
function blogger_trackback_onload(data) {
var out = document.getElementById('blogger_trackback_status');
try {
var parser = new DOMParser();
var xmlDoc = parser.parseFromString(data.responseText, "application/xml");
var errn = xmlDoc.getElementsByTagName('error');
if(errn[0] != 0) {
var errm = xmlDoc.getElementsByTagName('message');
out.innerHTML = errm[0].innerText;
} else {
out.innerHTML = 'Trackback Complete';
}//end if-else errn != 0
} catch(e) {
out.innerHTML = 'Trackback Complete';
}//end try-catch
}//end function blogger_trackback_onload
function getLinkByTarget( target )
{
var i, l = document.links;
for( i=0; i<l.length; i++ )
if( l[i].target == target )
return l[i];
}
function link( parent, node, match, base )
{
var a = document.createElement( 'a' );
a.href = base + (a.innerHTML = match[0]);
var x = node.splitText( match.index );
x.splitText( match[0].length );
parent.replaceChild( a, x );
return a.href;
}
function parseDetails( node, base )
{
var i, c = node.childNodes, match, url, t;
for( i=0; i<c.length; i++ ) {
if( (c[i].nodeName == '#text') &&
(match = /\S+/.exec( c[i].nodeValue )) )
{
t = link( node, c[i], match, base );
if( match[0].match( '/' ) ) url = t;
}
}//end for
return url;
}
function blogger_trackback_submit() {
var trackbackurl = document.getElementById('blogger_trackback_url');
var title = GM_getValue('postdata-trackback-title');
var excerpt = GM_getValue('postdata-trackback-excerpt');
var blog_name = GM_getValue('postdata-trackback-blog_name');
var url = GM_getValue('postdata-trackback-url');
var out = document.getElementById('blogger_trackback_status');
out.innerHTML = '<i>Sending Trackback Ping...</i>';
GM_xmlhttpRequest({'method':'POST',
'url':trackbackurl.value,
'headers':{'Content-Type':'application/x-www-form-urlencoded; charset=utf-8'},
'onload':blogger_trackback_onload,
'data':'url='+encodeURIComponent(url)
+'&title='+encodeURIComponent(title)
+'&blog_name='+encodeURIComponent(blog_name)
+'&excerpt='+encodeURIComponent(excerpt)
});
return false;
}//end function blogger_trackback_submit
function accesskey( node, key, keys, color )
{
var reserved = keys || { 'd':1, 'o':1, '.':1 };
var accesskey = 'Alt+'; // browsers have different ideas about accesskeys
if( navigator.userAgent.match( /opera/i ) )
accesskey = 'Shift+Esc followed by ';
else if( navigator.userAgent.match( /macintosh/i ) )
accesskey = 'Control+';
if( !key )
{
var letters = node.textContent.replace( /\W/g, '' ), i; // first word char
for( i=0; i<letters.length; i++ )
{
key = letters.charAt( i ); // will this letter do?
if( !reserved[key.toLowerCase()] ) break; // found the first free letter
key = null; // try, try again!
}
if( !key ) return reserved; // too bad; don't do anything at all.
}
underline( node, key );
reserved[key.toLowerCase()] = 1; // taken!
node.title = 'Hotkey: '+ accesskey + key.toLowerCase(); // usability hint
node.accessKey = key.toUpperCase();
if( color ) node.style.color = color; // colorize the link as applicable
return reserved;
}
function underline( node, key )
{
if( !node ) return;
var character = new RegExp( '^(<[^>]*>)*([^<'+ key +']*)*('+ key +')', 'i' );
var hasOne = getStyle( node, 'textDecoration' ).match( 'underline' );
var style = hasOne ? 'border-bottom:1px solid' : 'text-decoration:underline';
var underlined = '$1$2<span style="'+ style +';">$3</span>';
node.innerHTML = node.innerHTML.replace( character, underlined );
}
function getStyle( node, style )
{
if( node.currentStyle )
return node.currentStyle[ style ];
if( window.getComputedStyle )
return getComputedStyle( node, null )[ style ];
return '';
}
function showTrackback() {
var done = $( 'verboseStatus' );
if(!done )
{ // reddish debug flashing:
// $('body').style.background = '#F' + pad(parseInt(100*Math.random()));
return setTimeout( showTrackback, 200 );
}
var node = done.nextSibling;
if( node.nodeName == '#text' )
node = node.nextSibling; // the <p> tag containing View Blog
var url = false;
for(var i=0; i<node.childNodes.length; i++) {
if(stripHTML(node.childNodes[i].innerHTML) == 'View Post' || node.childNodes[i].innerHTML == 'View P<span style="border-bottom: 1px solid;">o</span>st') {
url = node.childNodes[i].href;
break;
}//end if View Post
}//end for childNodes
if(!url) {
var base = getLinkByTarget( '_blogView' ).href.replace( /\/?$/, '/' );
url = parseDetails( done, base );
if(!url) {
alert('URL not found. Trackback will not load.');
return false;
}//end if ! url
var perm = document.createElement( 'a' );
perm.href = url;
perm.appendChild( document.createTextNode( 'View Post' ) );
node.insertBefore( perm, node.firstChild );
node.insertBefore( document.createTextNode( ' ' ), node.firstChild );
accesskey( perm, 'o' );
}//end if ! url
GM_setValue( 'postdata-trackback-url', url );
var trackbackform = document.createElement('form');
trackbackform.id = 'blogger_trackback_form';
trackbackform.style.marginTop = '3px';
trackbackform.setAttribute('onsubmit','return false;');
node.appendChild(trackbackform);
trackbackform.addEventListener('submit', blogger_trackback_submit, false);
var trackbackurl = document.createElement('input');
trackbackurl.type = 'text';
trackbackurl.id = 'blogger_trackback_url';
trackbackform.appendChild(trackbackurl);
var trackbacksubmit = document.createElement('input');
trackbacksubmit.type = 'submit';
trackbacksubmit.value = 'Trackback';
trackbacksubmit.id = 'blogger_trackback_submit';
trackbackform.appendChild(trackbacksubmit);
var trackbackstatus = document.createElement('div');
trackbackstatus.id = 'blogger_trackback_status';
trackbackform.appendChild(trackbackstatus);
}//end function show trackback
