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answer_to.user.js
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answer_to.user.js
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// Answer to...
// https://github.com/Inversion-des/Habrahabr--Answer-to
// ==UserScript==
// @name Answer to...
// @description Shows the comment for which this comment is an answer
// @namespace Habrahabr
// @version 1.3.10
// @include https://geektimes.com/*
// @include https://habr.com/*
// @updateURL https://github.com/Inversion-des/Habrahabr--Answer-to/raw/master/answer_to.meta.js
// @downloadURL https://github.com/Inversion-des/Habrahabr--Answer-to/raw/master/answer_to.user.js
// @supportURL https://github.com/Inversion-des/Habrahabr--Answer-to/issues
// ==/UserScript==
/*
класс стрелочки вверх — up-to-parent
href — #comment_1706843
ID ответа — comment_1706843
класс заголовка — div info
класс тела — div message
*/
"use strict";
!function(win) {
if (window != window.top) return
var doc = win.document
win.addEventListener("load", function() {
var comments_cont = doc.getElementById('comments')
if (comments_cont) {
var msgStyle = "\
background-color:white;\
padding:3px 2px 0 5px;\
position:absolute;\
z-index:1;\
overflow-y:auto;\
-webkit-box-shadow: 0px 3px 12px 3px rgba(0, 0, 0, 0.3);\
-moz-box-shadow: 0px 3px 12px 3px rgba(0, 0, 0, 0.3);\
box-shadow: 0px 3px 12px 3px rgba(0, 0, 0, 0.3);"
// готовим контейнер для просмотра
win.msgContainer_cont = doc.createElement("div")
win.msgContainer_cont.className = "content-list__item_comment comments_list_answerTo"
win.msgContainer_cont.innerHTML = '<div class="comment" style="'+msgStyle+'"></div>'
win.msgContainer_cont.style.cssText = "position:fixed;top:0px;left:0px;display:none;z-index:99;margin:0 !important;padding:0 !important;overflow:visible;text-align:left;"
doc.body.appendChild(win.msgContainer_cont)
win.msgContainer = win.msgContainer_cont.firstChild
// прописываем ховер стрелочкам всех комментов
var arrows = comments_cont.getElementsByClassName('js-comment_parent')
$.each(arrows, activateArrow)
// таймер для активации новых комментариев
setInterval(function() {
var $ = win.jQuery
if ($) {
var newComments = $('.comment .is_new .to_parent')
for (var i=0, li=newComments.length; i<li; i++) {
var link = newComments[i]
if (link.getAttribute('oninit') != 'activaded') {
activateArrow(link)
link.setAttribute('oninit', 'activaded')
}
}
}
}, 2000)
// на клик — прячем коммент
win.addEventListener("mousedown", hideTargetComment, false)
} // if comments_cont
}, false);
function activateArrow(index, arrEl) {
arrEl.addEventListener("mouseover", function(){
showTargetComment(this.getAttribute('href'), arrEl)
}, false)
arrEl.addEventListener("mouseout", hideTargetComment, false)
}
function showTargetComment(href, arrEl) {
// ищем объект по id
var id = href.replace(/^.*?#/, '')
var target = doc.getElementById(id)
// чистим контейнер
while (win.msgContainer.childNodes.length) {win.msgContainer.removeChild(win.msgContainer.childNodes[0])}
// заполняем контейнер новым комментом
var comment_body = target
// for (var i=0, l=target.childNodes.length; i<l; i++) {
// var tmp = target.childNodes[i]
// if (/comment_body/.test(tmp.className)) {
// comment_body = tmp
// break
// }
// }
if (comment_body) {
for (var i=0, l=comment_body.childNodes.length; i<l; i++) {
var tmp = comment_body.childNodes[i]
if (/head|message/.test(tmp.className)) {
win.msgContainer.appendChild(tmp.cloneNode(true))
}
// выходим из цикла
if (tmp.className == "message") break
}
}
// подгоняем ширину под блок комментариев
var pageComments_cont = doc.getElementById('comments')
win.msgContainer_cont.style.width = pageComments_cont.offsetWidth+absLeft(pageComments_cont)+2 + 'px'
var targetTop = absTop(target)
var windowScrollPos = doc.documentElement.scrollTop || doc.body.scrollTop
// inline highlight
win.msgContainer.style.top = targetTop>windowScrollPos ? targetTop-windowScrollPos-3 +'px' : 0
// height auto adjustment
if (targetTop<windowScrollPos) {
var currentCommentTop = absTop(arrEl.parentNode.parentNode)
var targetCommentHeight = target.offsetHeight
var delta = (windowScrollPos + targetCommentHeight) - (currentCommentTop-10)
win.msgContainer.style.maxHeight = delta>0 ? targetCommentHeight-delta +'px' : ''
}
else {
win.msgContainer.style.maxHeight = ''
}
// показываем
win.msgContainer.parentNode.style.display = "block"
// отступы
win.msgContainer.style.marginLeft = absLeft(target)-5+'px'
win.msgContainer.style.width = win.msgContainer.parentNode.offsetWidth-parseInt(win.msgContainer.style.marginLeft)+'px'
} // showTargetComment
function hideTargetComment() {
win.msgContainer.parentNode.style.display = "none"
}
function absLeft(o) {
var l = 0
do {
if (o.offsetLeft) l += o.offsetLeft-o.scrollLeft;
} while (o = o.offsetParent)
return l
}
function absTop(o) {
var l = 0
do {
if (o.offsetTop) l += o.offsetTop-o.scrollTop;
} while (o = o.offsetParent)
return l
}
}(typeof unsafeWindow == 'undefined' ? window : unsafeWindow)