DeviantArt gallery - block images from selected artists
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// ==UserScript==
// @name DeviantBlocker
// @namespace brandrock.co.za
// @author Peter Brand
// @description DeviantArt gallery - block images from selected artists
// @license GNU GPLv3
// @include http://www.deviantart.com/*
// @include https://www.deviantart.com/*
// @version 3.1
// @grant GM_getValue
// @grant GM_setValue
// @run-at document-start
// ==/UserScript==
// @grant GM_log
(function() {
//var blacklist = '|';
//first time scan on load
document.addEventListener ('DOMContentLoaded', pageInit);
//recheck on scroll in case DA preference is set to paging by "scroll through"
window.onscroll = scanImages;
function buttonAdd(parent, label, title, style, clickEvent){
var elem = document.createElement('button');
elem.type = 'button';
elem.style = style;
elem.style.zIndex = '99';
elem.style.position = 'absolute';
elem.title = title;
elem.innerHTML = label;
parent.appendChild(elem);
elem.addEventListener('click', clickEvent);
return elem;
}
function pageInit() {
//button to reveal blacklist
var bdiv = document.getElementById('browse-results');
var blackText = document.createElement('textarea');
blackText.style = 'position: absolute; display: none; top:0px; right: 0px; z-index: 99;';
bdiv.appendChild(blackText);
buttonAdd(bdiv, '?', 'Click to show blacklisted artists'
, 'top:0px; right: 0px', function(e){
var blacklist = GM_getValue('DAGbl2', '|');
blackText.innerHTML = blacklist;
blackText.style.display='inline-block';
});
blackText.addEventListener('change', function (){
GM_setValue('DAGbl2', blackText.value)
});
scanImages();
}
function scanImages() {
var thumbs = document.querySelectorAll('img[data-sigil]');
var blacklist = GM_getValue('DAGbl2', '|');
//scan all IMG elements that have a data-sigil attribute (seems unique to gallery images)
for(var i = thumbs.length; i--;) {
var img = thumbs[i];
//quick check to see if have done this image already
if (img.devblok) return;
img.devblok = true;
var a = img.parentNode;
var div = a.parentNode; //is a span now
var userid = a.href;
if (userid.indexOf("://") > -1) {
userid = userid.split('/')[2];
}
userid = userid.split('.')[0];
//create a button on the page to toggle the state of the artist
var elem = buttonAdd(div, 'x', 'Click to hide/show images from this artist'
, 'bottom:0px; right: 0px', function(e){
artistToggle(e, this);
});
elem.userid = userid;
img.userid = userid;
var useridD = '|' + userid + '|';
if (blacklist.indexOf(useridD) > -1){
imgHide(img);
elem.isBlocked = true;
} else {
elem.isBlocked = false;
}
}
}
function artistToggle(e, button) {
//show or hide the images for this artist
var i, img;
var blacklist = GM_getValue('DAGbl2', '|');
var thumbs = document.querySelectorAll('img[data-sigil]');
if (button.isBlocked){
//remove from blacklist string - could have used an array, but string is fast enough
blacklist = blacklist.replace(button.userid + '|', '');
GM_setValue('DAGbl2', blacklist);
//scan page for all images for this artist and show them
for(i = thumbs.length; i--;) {
img = thumbs[i];
if(img.userid == button.userid){
imgShow(img);
}
}
button.isBlocked = false;
} else {
//add to blacklist
blacklist = blacklist + button.userid + '|';
GM_setValue('DAGbl2', blacklist);
//scan page for all images for this artist and hide them
for(i = thumbs.length; i--;) {
img = thumbs[i];
if(img.userid == button.userid){
imgHide(img);
}
}
button.isBlocked = true;
}
var event = e || window.event;
if (!event) return;
event.cancelBubble = true;
if (event.stopPropagation) event.stopPropagation();
}
function imgHide(img){
//img.style.opacity = '0.05';
img.setAttribute('data-src', img.src);
img.src ='';
img.alt ='';
}
function imgShow(img){
//img.style.opacity = '1';
img.src = img.getAttribute('data-src');
}
})();