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// ==UserScript==
// @name Wakaba post preview
// @namespace wakaba-post-preview-namespace
// @version 1.3.22
// @description Wakaba post preview generator.
// @license WTFPLv2
// @encoding utf-8
// @include http://iichan.ru/*
// @include http://*.iichan.ru/*
// @include http://iichan.net/*
// @include http://*.iichan.net/*
// @include http://desuchan.net/*
// @include http://*.desuchan.net/*
// @include https://desuchan.net/*
// @include https://*.desuchan.net/*
// @include http://*.420chan.org/*
// @include http://420chan.org/*
// @include http://*.not420chan.org/*
// @include http://wakachan.org/*
// @include http://*.wakachan.org/*
// @include http://1chan.net/*
// @include http://*.1chan.net/*
// @include http://raki-suta.com/*
// @include http://*.raki-suta.com/*
// @include http://voile.gensokyo.org/*
// @include http://nowere.net/*
// @include http://*.nowere.net/*
// ==/UserScript==
/* globals */
var previewslot=null;
var config=new Array();
//values
config['recursive_post_preview']=true;
// set to false to disable recursive postspreview-in-postpreview
config['display_link_to_previewing_post']=true;
// set to false to disable addition postlink to top of preview and stop
// covering original link
config['abort_http_connections']=false;
// *do not touch if you not sure *
// true is a bit faster, but may result in partial downloaded pages,
// so you need manualy reload thread, loading of which was aborted.
config['limit_preview_by_board']=false;
// set to true to disable preview from other /b/o/a/r/d/s/
config['limit_op_post_preview_by_thread']=false;
// set to true to preview op-post link only inside thread
config['limit_preview_by_replies']=false;
// set to true to preview only >>number links
config['no_post_content_error_msg']='Error 000';
// set to any string you like. valid html alowed.
config['limit_preview_size']=0;
// set to maximum height of preview you like (in pixels). 0 or false to disable.
/* end of globals */
function print_r(arr,type) {
var result='';
var msg_type=alert;
if (!arr)
return;
switch (type) {
case 0:
msg_type=alert;
break;
case 1:
msg_type=opera.postError;
break;
case 2:
msg_type=console.info;
break;
default:
if (typeof(opera)!='undefined') {
msg_type=opera.postError;
} else if (typeof(console)!='undefined') {
msg_type=console.info;
} else {
msg_type=alert;
}
break;
}
result+=arr+'\n';
for (var prop in arr) {
result+=prop+': '+arr[prop]+"\n";
}
msg_type(result);
}
function setCookie(c_name,value,expiredays) {
var exdate=new Date();
exdate.setDate(exdate.getDate()+expiredays);
document.cookie=c_name+'='+escape(value)+((expiredays==null) ? "" : ";expires="+exdate.toGMTString());
}
function getCookie(c_name) {
if (document.cookie.length>0) {
c_start=document.cookie.indexOf(c_name+'=');
if (c_start!=-1) {
c_start=c_start + c_name.length+1;
c_end=document.cookie.indexOf(";",c_start);
if (c_end==-1)
c_end=document.cookie.length;
return unescape(document.cookie.substring(c_start,c_end));
}
}
return null
}
function node_req_walk(arr,fn,req) {
if (!arr)
return;
if (!req)
fn(arr);
for (var i=0;i<arr.length;i++) {
fn(arr[i]);
if (arr[i].hasChildNodes)
node_req_walk(arr[i].childNodes,fn,true);
}
if (arr.hasChildNodes)
node_req_walk(arr.childNodes,fn,true);
}
function ajax_query() {
var handle,complete=false;
var delay=500;
var last_call=0;
var delayed=null;
var aborted=false;
var lastreqid=null;
handle=new XMLHttpRequest();
if (!handle)
return;
this.abort=function() {
clearTimeout(delayed);
lastreqid=null;
aborted=true;
handle.abort();
return true;
}
this.connect=function(method,url,fn) {
if (url==lastreqid)
return false;
var curtime=new Date().getTime();
var waittime=((curtime-last_call)<delay) ? (delay-(curtime-last_call)) : 0;
clearTimeout(delayed);
lastreqid=url;
delayed=setTimeout(function(){make_connection(method,url,fn);},waittime);
};
function make_connection(method,url,fn) {
if (!handle)
return;
last_call=new Date().getTime();
aborted=false;
complete=false;
try {
if (config['abort_http_connections']==true)
handle.abort();
handle.open(method,url,false);
handle.onload=function() {
if (handle.readyState==4&&!complete) {
complete=true;
lastreqid=null;
fn(handle,complete,aborted);
}
}
handle.send(null);
}
catch(z) { return false; };
return true;
}
return this;
}
function int_counter() {
var data=0;
this.inc=function() {
data+=1;
return data;
}
this.dec=function() {
if (data<=0)
return false;
data-=1;
return data;
}
this.get=function() {
return data;
}
this.flush=function() {
data=0;
return true;
}
return this;
}
function getPos(obj) {
var left=0;
var top=0;
if (obj.offsetParent) {
do {
left+=obj.offsetLeft;
top+=obj.offsetTop;
} while (obj=obj.offsetParent)
}
return Array(left,top);
}
/* -------------- init -------------- */
window.addEventListener("load",init,false);
var http=new ajax_query();
var counter=new int_counter();
function init(e) {
checkConfigValues();
// if (RegExp('#post_preview_config$').test(document.URL))
// configEnable();
config['system']=new Array();
config['system']['engine_type']=getBoardEngineType(document);
setPreviewListener(document);
}
function checkConfigValues() {
var boolvars=new Array(
config['recursive_post_preview'],"config['recursive_post_preview']",
config['display_link_to_previewing_post'],"config['display_link_to_previewing_post']",
config['abort_http_connections'],"config['abort_http_connections']",
config['limit_preview_by_board'],"config['limit_preview_by_board']",
config['limit_op_post_preview_by_thread'],"config['limit_op_post_preview_by_thread']",
config['limit_preview_by_replies'],"config['limit_preview_by_replies']"
);
for (var v=0;v<boolvars.length;v+=2) {
if(typeof(boolvars[v])!='boolean') {
if(typeof(boolvars[v])=='string') {
alert(boolvars[v+1]+' value must not be enquoted with \'\' or ""');
} else {
alert(boolvars[v+1]+' value must be true or false (without quotations)');
}
}
}
var stringvars=new Array(
config['no_post_content_error_msg'],"config['no_post_content_error_msg']"
);
for (var v=0;v<stringvars.length;v+=2) {
if(typeof(stringvars[v])!='string') {
alert(stringvars[v+1]+' value must be string enquoted with \'\' or ""');
}
}
if (config['limit_preview_size']) {
if (typeof(config['limit_preview_size']) != 'number') {
alert("config['limit_preview_size'] value must be a number not lesser then 0");
} else if (config['limit_preview_size']<0) {
alert("config['limit_preview_size'] value must be not lesser then 0");
}
}
}
function getBoardEngineType(obj) {
var scripts=obj.getElementsByTagName('script');
var type=null;
for (var i=0;i<scripts.length;i++) {
if (RegExp('wakaba3\.js$').test(scripts[i].src)) {
type='wakaba3';
break;
} else if (RegExp('wakaba\.js$').test(scripts[i].src)) {
type='wakaba';
break;
} else if (RegExp('kusaba\.js$').test(scripts[i].src)) {
type='kusaba';
break;
} else {
type='wakaba3';
}
}
if (RegExp('^http://(|[^/]*\.)dobrochan.ru').test(document.URL)) {
type='hanabira';
}
return type;
}
function setPreviewListener(obj) {
var links=obj.getElementsByTagName('a');
var regexp=null;
switch (config['system']['engine_type']) {
case 'wakaba':
case 'wakaba3':
case 'hanabira':
regexp='(res/[0-9]*\.[xs]{0,1}html|)(|#[i]{0,1}[0-9]*)$';
break;
}
for (var i=0;i<links.length;i++) {
if (RegExp(regexp).test(links[i].href)) {
links[i].addEventListener('mouseover',initPostPreview,false);
}
}
}
function initPostPreview(e) {
var post=new Array();
var regexp=new Array();
if (this.event) {
post['link']=this.event.currentTarget;
} else {
post['link']=this;
}
post['href']=post['link'].href;
post['text']=post['link'].innerHTML;
post['host']=document.domain;
post['url']=document.URL;
post['isnormallink']=RegExp('^>>[0-9]*$').test(post['text']);
post['isregularlink']=RegExp('http://'+post['host']).test(post['href']);
post['isabbrev']=(post['link'].parentNode) ? (post['link'].parentNode.className=='abbrev') : false;
post['iserr']=RegExp('http://'+post['host']+'/cgi-bin/').test(post['url']);
post['isindomain']=RegExp('^http://(|[^/]*[.])'+post['host']).test(post['text']);
switch (config['system']['engine_type']) {
case 'wakaba':
case 'wakaba3':
case 'hanabira':
regexp['href']='(^|'+post['host']+')/((.*)/|)(([0-9]*)\.[xs]{0,1}html|)(|[?#i]{0,3}([0-9]*))$';
regexp['url']='http://'+post['host']+'/((.*)/res/[0-9]*\.[xs]{0,1}html[?i#]{0,3}[0-9]*|(.*)[/]+[^/]*|[^/]*|)$';
break;
}
var args=RegExp(regexp['href']).exec(post['href']);
if(!args)
return false;
post['board']=args[3];
post['thread']=args[5];
if(args[7]) {
post['num']=args[7];
} else if (args[5]) {
post['num']=args[5];
} else {
return false;
}
if (!RegExp('/res$').test(args[3]))
post['isexpand']=true;
var args=RegExp(regexp['url']).exec(post['url']);
if (args[3]) {
post['this_board']=args[3];
} else if (args[2]) {
post['this_board']=args[2];
}
post['isthread']=(post['num']==post['thread']);
switch (config['system']['engine_type']) {
case 'wakaba':
case 'wakaba3':
post['isparentthread']=(post['link'].parentNode.id=='thread-'+post['thread']);
break;
case 'hanabira':
post['isparentthread']=(post['link'].parentNode.parentNode.parentNode.id=='thread_'+post['thread']);
break;
}
if (!post['isnormallink'] && !post['isabbrev'] && !post['iserr'] && !( !post['isthread'] && post['isnormallink'] ) && ! post['isindomain'])
return false;
if (config['limit_preview_by_board']==true)
if (post['this_board']!=post['board'])
return false;
if (config['limit_op_post_preview_by_thread']==true)
if (post['isthread']==false)
if (post['thread']==post['num'])
return false;
if (config['limit_preview_by_replies']==true)
if (!post['isnormallink'])
return false;
if (config['abort_http_connections']==true)
http.abort();
post['link'].addEventListener('mouseout',clearPreviewSlot,false);
previewslot=setTimeout(function(){rollPostPreview(post);},100);
}
function clearPreviewSlot() {
clearTimeout(previewslot);
}
function rollPostPreview(post) {
clearTimeout(previewslot);
var preview=new Array();
var parentelem;
preview['leftpos'] = getPos(post['link'])[0];
preview['toppos'] = getPos(post['link'])[1];
if (document.getElementById('preview_div'+counter.get())!=null) {
var prevelem=document.getElementById('preview_div'+(counter.get()));
var elements=prevelem.getElementsByTagName('a');
var elem=false;
for (var i=0;i<elements.length;i++) {
if (elements[i]==post['link']) {
elem=true;
break;
}
}
if (elem) {
parentelem=document.getElementById('preview_div'+counter.get());
preview['toppos']=post['link'].offsetTop+post['link'].offsetParent.offsetTop+post['link'].offsetParent.offsetParent.offsetTop;
counter.inc();
} else {
purgePostPreview();
parentelem=document.body;
}
if (document.getElementById('preview_div'+counter.get())!=null)
delPostPreview('preview_div'+counter.get());
} else {
parentelem=document.body;
purgePostPreview();
}
preview['url']=RegExp('^http://[^/]*((.*)[#?]|(.*))').exec(post['href']);
preview['url']=(preview['url'][2]) ? preview['url'][2] : preview['url'][1];
preview['url']='http://'+post['host']+preview['url'];
preview['container']=parentelem.appendChild(document.createElement('div'));
preview['container'].style.zIndex=9000+counter.get();
preview['container'].style.position='absolute';
preview['container'].style.padding='10px';
preview['container'].style.left=(preview['leftpos']+post['link'].offsetWidth*1.5) + 'px';
preview['container'].style.top=preview['toppos']+'px';
preview['container'].style.border='2px dashed';
preview['container'].style.background=window.getComputedStyle(document.body,null).getPropertyValue('background-color');
preview['container'].id='preview_div'+counter.get();
if ((!post['isabbrev'] && !post['isthread'])||post['url']==preview['url']&&!post['isabbrev']||post['isexpand'])
preview['content']=getStaticContent(document,post);
if (preview['content']) {
var divs=preview['content'].getElementsByTagName('div');
for (var i=0;i<divs.length;i++) {
if (divs[i].className=='abbrev') {
preview['content']=null;
break;
}
}
}
if (preview['content']) {
post['status']=200;
bakePostPreview(post,preview);
return true;
} else {
if (post['isexpand']) {
post['isthread']=true;
preview['url']=post['href'].replace(/[^/]*$/,'res/'+post['num']+'.html');
}
preview['content']=getAjaxContent(post,preview);
return true;
}
}
function getStaticContent(obj,post) {
post['content']=null;
if (post['isthread']) {
switch (config['system']['engine_type']) {
case 'wakaba':
case 'wakaba3':
post['content']=obj.getElementById('delform');
if (post['content']) {
post['content']=post['content'].cloneNode(true);
var nextelem=post['content'].getElementsByTagName('blockquote')[0].nextElementSibling;
if (nextelem)
if (nextelem.className=='omittedposts')
nextelem.parentNode.removeChild(nextelem);
post['content'].removeChild(post['content'].getElementsByTagName('hr')[0]);
}
break;
case 'hanabira':
post['content']=obj.getElementById('post_'+post['num']);
if (post['content']) {
post['content']=post['content'].cloneNode(true);
}
break;
}
if (post['content']) {
var posts=post['content'].getElementsByTagName('table');
while (posts.length)
for(var n=0;n<posts.length;n++)
posts[n].parentNode.removeChild(posts[n])
}
} else {
switch (config['system']['engine_type']) {
case 'wakaba':
case 'wakaba3':
post['content']=obj.getElementById('reply'+post['num']);
if (post['content'])
post['content']=post['content'].parentNode.parentNode.parentNode.cloneNode(true);
break;
case 'hanabira':
post['content']=obj.getElementById('reply'+post['num']);
if (post['content'])
post['content']=post['content'].parentNode.parentNode.parentNode.cloneNode(true);
break;
}
if (post['content']) {
post['content'].getElementsByTagName('td')[0].parentNode.removeChild(post['content'].getElementsByTagName('td')[0]);
post['content'].getElementsByTagName('td')[0].className="reply";
}
}
if (post['content'])
post['content'].getElementsByTagName('a')[0].parentNode.removeChild(post['content'].getElementsByTagName('a')[0]);
return post['content'];
}
function getAjaxContent(post,preview) {
http.connect('GET',preview['url'],
function(handle,complete,aborted) {
if (aborted==true)
return delPostPreview(true);
var posts;
switch (handle.status) {
case 200:
post['status']='200';
var ajaxdoc;
switch (config['system']['engine_type']) {
case 'wakaba':
case 'wakaba3':
case 'hanabira':
ajaxdoc=document.body.childNodes[0].parentNode.insertBefore(document.createElement('div'),document.body.childNodes[0]);
ajaxdoc.id='parsecont';
ajaxdoc.style.width='0px';
ajaxdoc.style.position='absolute';
ajaxdoc.style.zIndex='-100';
ajaxdoc.innerHTML=handle.responseText;
preview['content']=getStaticContent(document,post);
ajaxdoc.parentNode.removeChild(ajaxdoc);
break;
}
if (preview['content'])
break;
default:
post['status']='000';
if (handle.status!=200&&!post['isexpand'])
post['status']=handle.status;
preview['content']=document.createElement('div');
if (post['status']=='000') {
preview['content'].innerHTML=config['no_post_content_error_msg'];
} else {
preview['content'].innerHTML='Error '+post['status'];
}
break;
}
bakePostPreview(post,preview);
}
);
}
function bakePostPreview(post,preview) {
if (!preview['content']) {
delPostPreview();
if (config['abort_http_connections']==true)
http.abort();
rollPostPreview(post);
return false;
}
if (config['display_link_to_previewing_post']) {
var postlink=document.createElement('a');
postlink.href=post['href'];
postlink.onclick='highlight('+post['num']+')';
postlink.innerHTML='<div>>>'+post['num']+'</div>';
preview['container'].appendChild(postlink);
} else {
preview['container'].style.top=preview['toppos']+post['link'].offsetHeight-2+'px';
post['link'].addEventListener('mouseout',hoverPostPreview,false);
}
var links=preview['content'].getElementsByTagName('a');
for(var i=0;i<links.length;i++)
if (RegExp('(^/'+post['board']+'/|^/)').test(links[i].href))
links[i].href='http://'+post['host']+links[i].href;
if(config['recursive_post_preview'])
setPreviewListener(preview['content']);
preview['container'].appendChild(preview['content']);
if (config['limit_preview_size']) {
if (preview['container'].offsetHeight>config['limit_preview_size'])
preview['container'].style.height=config['limit_preview_size']+'px';
preview['container'].style.overflow='auto';
}
node_req_walk(preview['container'].childNodes,function(elem){elem.id='postpreview'+counter.get()});
if (!post['isthread']&&preview['content'].getElementsByTagName('td')[0]) {
preview['container'].style.background=window.getComputedStyle(preview['content'].getElementsByTagName('td')[0],null).getPropertyValue('background-color');
}
preview['container'].style.left=2+'%';
preview['container'].style.right=1+'%';
post['link'].removeEventListener('mouseout',delPostPreview,false);
preview['container'].addEventListener('mouseout',hoverPostPreview,false);
}
function delPostPreview(donotabort) {
if ((!donotabort||typeof(donotabort)=='object')&&config['abort_http_connections']==true)
http.abort();
var id='preview_div'+counter.get();
if (id=='preview_div0')
return purgePostPreview();
var preview=document.getElementById(id);
if (preview) {
preview.parentNode.removeChild(preview);
counter.dec();
return true;
}
return false;
}
function purgePostPreview() {
counter.flush();
var elements=document.getElementsByTagName('div');
for(var i=0;i<elements.length;i++)
if (RegExp('preview_div[0-9]*$').test(elements[i].id))
elements[i].parentNode.removeChild(elements[i]);
return true;
}
function hoverPostPreview(e) {
if (!e.relatedTarget)
return;
if (e.relatedTarget.id=='preview_div'+counter.get()||e.relatedTarget.id=='postpreview'+counter.get())
return;
if (!RegExp('^(preview_div|postpreview)[0-9]*$').test(e.relatedTarget.id))
counter.flush();
delPostPreview();
}
