mirror of
https://github.com/gorhill/uBlock.git
synced 2024-11-02 00:42:45 +01:00
bb41d9594f
Additionally: Use `export UBO_VERSION=local` at the console to build MV3 extension using current version of uBO code base. By default, the version is taken from `./platform/mv3/ubo-version' and usually set to last stable release.
763 lines
24 KiB
JavaScript
763 lines
24 KiB
JavaScript
/*******************************************************************************
|
|
|
|
uBlock Origin - a browser extension to block requests.
|
|
Copyright (C) 2014-present Raymond Hill
|
|
|
|
This program is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see {http://www.gnu.org/licenses/}.
|
|
|
|
Home: https://github.com/gorhill/uBlock
|
|
*/
|
|
|
|
/* jshint esversion:11 */
|
|
|
|
'use strict';
|
|
|
|
/******************************************************************************/
|
|
|
|
// Important!
|
|
// Isolate from global scope
|
|
(function uBOL_cssProcedural() {
|
|
|
|
/******************************************************************************/
|
|
|
|
const proceduralImports = self.proceduralImports || [];
|
|
self.proceduralImports = undefined;
|
|
delete self.proceduralImports;
|
|
|
|
/******************************************************************************/
|
|
|
|
const hnParts = [];
|
|
try { hnParts.push(...document.location.hostname.split('.')); }
|
|
catch(ex) { }
|
|
const hnpartslen = hnParts.length;
|
|
if ( hnpartslen === 0 ) { return; }
|
|
|
|
const selectors = [];
|
|
|
|
for ( const { argsList, exceptionsMap, hostnamesMap, entitiesMap } of proceduralImports ) {
|
|
const todoIndices = new Set();
|
|
const tonotdoIndices = [];
|
|
// Exceptions
|
|
if ( exceptionsMap.size !== 0 ) {
|
|
for ( let i = 0; i < hnpartslen; i++ ) {
|
|
const hn = hnParts.slice(i).join('.');
|
|
const excepted = exceptionsMap.get(hn);
|
|
if ( excepted ) { tonotdoIndices.push(...excepted); }
|
|
}
|
|
exceptionsMap.clear();
|
|
}
|
|
// Hostname-based
|
|
if ( hostnamesMap.size !== 0 ) {
|
|
const collectArgIndices = hn => {
|
|
let argsIndices = hostnamesMap.get(hn);
|
|
if ( argsIndices === undefined ) { return; }
|
|
if ( typeof argsIndices === 'number' ) { argsIndices = [ argsIndices ]; }
|
|
for ( const argsIndex of argsIndices ) {
|
|
if ( tonotdoIndices.includes(argsIndex) ) { continue; }
|
|
todoIndices.add(argsIndex);
|
|
}
|
|
};
|
|
for ( let i = 0; i < hnpartslen; i++ ) {
|
|
const hn = hnParts.slice(i).join('.');
|
|
collectArgIndices(hn);
|
|
}
|
|
collectArgIndices('*');
|
|
hostnamesMap.clear();
|
|
}
|
|
// Entity-based
|
|
if ( entitiesMap.size !== 0 ) {
|
|
const n = hnpartslen - 1;
|
|
for ( let i = 0; i < n; i++ ) {
|
|
for ( let j = n; j > i; j-- ) {
|
|
const en = hnParts.slice(i,j).join('.');
|
|
let argsIndices = entitiesMap.get(en);
|
|
if ( argsIndices === undefined ) { continue; }
|
|
if ( typeof argsIndices === 'number' ) { argsIndices = [ argsIndices ]; }
|
|
for ( const argsIndex of argsIndices ) {
|
|
if ( tonotdoIndices.includes(argsIndex) ) { continue; }
|
|
todoIndices.add(argsIndex);
|
|
}
|
|
}
|
|
}
|
|
entitiesMap.clear();
|
|
}
|
|
for ( const i of todoIndices ) {
|
|
selectors.push(...argsList[i].map(json => JSON.parse(json)));
|
|
}
|
|
argsList.length = 0;
|
|
}
|
|
proceduralImports.length = 0;
|
|
|
|
if ( selectors.length === 0 ) { return; }
|
|
|
|
/******************************************************************************/
|
|
|
|
const uBOL_injectCSS = (css, count = 10) => {
|
|
chrome.runtime.sendMessage({ what: 'insertCSS', css }).catch(( ) => {
|
|
count -= 1;
|
|
if ( count === 0 ) { return; }
|
|
uBOL_injectCSS(css, count - 1);
|
|
});
|
|
};
|
|
|
|
const nonVisualElements = {
|
|
script: true,
|
|
style: true,
|
|
};
|
|
|
|
const regexFromString = (s, exact = false) => {
|
|
if ( s === '' ) { return /^/; }
|
|
const match = /^\/(.+)\/([i]?)$/.exec(s);
|
|
if ( match !== null ) {
|
|
return new RegExp(match[1], match[2] || undefined);
|
|
}
|
|
const reStr = s.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
|
|
return new RegExp(exact ? `^${reStr}$` : reStr, 'i');
|
|
};
|
|
|
|
/******************************************************************************/
|
|
|
|
// 'P' stands for 'Procedural'
|
|
|
|
class PSelectorTask {
|
|
begin() {
|
|
}
|
|
end() {
|
|
}
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
class PSelectorVoidTask extends PSelectorTask {
|
|
constructor(task) {
|
|
super();
|
|
console.info(`uBO: :${task[0]}() operator does not exist`);
|
|
}
|
|
transpose() {
|
|
}
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
class PSelectorHasTextTask extends PSelectorTask {
|
|
constructor(task) {
|
|
super();
|
|
this.needle = regexFromString(task[1]);
|
|
}
|
|
transpose(node, output) {
|
|
if ( this.needle.test(node.textContent) ) {
|
|
output.push(node);
|
|
}
|
|
}
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
class PSelectorIfTask extends PSelectorTask {
|
|
constructor(task) {
|
|
super();
|
|
this.pselector = new PSelector(task[1]);
|
|
}
|
|
transpose(node, output) {
|
|
if ( this.pselector.test(node) === this.target ) {
|
|
output.push(node);
|
|
}
|
|
}
|
|
}
|
|
PSelectorIfTask.prototype.target = true;
|
|
|
|
class PSelectorIfNotTask extends PSelectorIfTask {
|
|
}
|
|
PSelectorIfNotTask.prototype.target = false;
|
|
|
|
/******************************************************************************/
|
|
|
|
class PSelectorMatchesAttrTask extends PSelectorTask {
|
|
constructor(task) {
|
|
super();
|
|
this.reAttr = regexFromString(task[1].attr, true);
|
|
this.reValue = regexFromString(task[1].value, true);
|
|
}
|
|
transpose(node, output) {
|
|
const attrs = node.getAttributeNames();
|
|
for ( const attr of attrs ) {
|
|
if ( this.reAttr.test(attr) === false ) { continue; }
|
|
if ( this.reValue.test(node.getAttribute(attr)) === false ) { continue; }
|
|
output.push(node);
|
|
}
|
|
}
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
class PSelectorMatchesCSSTask extends PSelectorTask {
|
|
constructor(task) {
|
|
super();
|
|
this.name = task[1].name;
|
|
this.pseudo = task[1].pseudo ? `::${task[1].pseudo}` : null;
|
|
let arg0 = task[1].value, arg1;
|
|
if ( Array.isArray(arg0) ) {
|
|
arg1 = arg0[1]; arg0 = arg0[0];
|
|
}
|
|
this.value = new RegExp(arg0, arg1);
|
|
}
|
|
transpose(node, output) {
|
|
const style = window.getComputedStyle(node, this.pseudo);
|
|
if ( style !== null && this.value.test(style[this.name]) ) {
|
|
output.push(node);
|
|
}
|
|
}
|
|
}
|
|
class PSelectorMatchesCSSAfterTask extends PSelectorMatchesCSSTask {
|
|
constructor(task) {
|
|
super(task);
|
|
this.pseudo = '::after';
|
|
}
|
|
}
|
|
|
|
class PSelectorMatchesCSSBeforeTask extends PSelectorMatchesCSSTask {
|
|
constructor(task) {
|
|
super(task);
|
|
this.pseudo = '::before';
|
|
}
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
class PSelectorMatchesMediaTask extends PSelectorTask {
|
|
constructor(task) {
|
|
super();
|
|
this.mql = window.matchMedia(task[1]);
|
|
if ( this.mql.media === 'not all' ) { return; }
|
|
this.mql.addEventListener('change', ( ) => {
|
|
if ( proceduralFilterer instanceof Object === false ) { return; }
|
|
proceduralFilterer.onDOMChanged([ null ]);
|
|
});
|
|
}
|
|
transpose(node, output) {
|
|
if ( this.mql.matches === false ) { return; }
|
|
output.push(node);
|
|
}
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
class PSelectorMatchesPathTask extends PSelectorTask {
|
|
constructor(task) {
|
|
super();
|
|
this.needle = regexFromString(
|
|
task[1].replace(/\P{ASCII}/gu, s => encodeURIComponent(s))
|
|
);
|
|
}
|
|
transpose(node, output) {
|
|
if ( this.needle.test(self.location.pathname + self.location.search) ) {
|
|
output.push(node);
|
|
}
|
|
}
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
class PSelectorMinTextLengthTask extends PSelectorTask {
|
|
constructor(task) {
|
|
super();
|
|
this.min = task[1];
|
|
}
|
|
transpose(node, output) {
|
|
if ( node.textContent.length >= this.min ) {
|
|
output.push(node);
|
|
}
|
|
}
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
class PSelectorOthersTask extends PSelectorTask {
|
|
constructor() {
|
|
super();
|
|
this.targets = new Set();
|
|
}
|
|
begin() {
|
|
this.targets.clear();
|
|
}
|
|
end(output) {
|
|
const toKeep = new Set(this.targets);
|
|
const toDiscard = new Set();
|
|
const body = document.body;
|
|
let discard = null;
|
|
for ( let keep of this.targets ) {
|
|
while ( keep !== null && keep !== body ) {
|
|
toKeep.add(keep);
|
|
toDiscard.delete(keep);
|
|
discard = keep.previousElementSibling;
|
|
while ( discard !== null ) {
|
|
if (
|
|
nonVisualElements[discard.localName] !== true &&
|
|
toKeep.has(discard) === false
|
|
) {
|
|
toDiscard.add(discard);
|
|
}
|
|
discard = discard.previousElementSibling;
|
|
}
|
|
discard = keep.nextElementSibling;
|
|
while ( discard !== null ) {
|
|
if (
|
|
nonVisualElements[discard.localName] !== true &&
|
|
toKeep.has(discard) === false
|
|
) {
|
|
toDiscard.add(discard);
|
|
}
|
|
discard = discard.nextElementSibling;
|
|
}
|
|
keep = keep.parentElement;
|
|
}
|
|
}
|
|
for ( discard of toDiscard ) {
|
|
output.push(discard);
|
|
}
|
|
this.targets.clear();
|
|
}
|
|
transpose(candidate) {
|
|
for ( const target of this.targets ) {
|
|
if ( target.contains(candidate) ) { return; }
|
|
if ( candidate.contains(target) ) {
|
|
this.targets.delete(target);
|
|
}
|
|
}
|
|
this.targets.add(candidate);
|
|
}
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
// https://github.com/AdguardTeam/ExtendedCss/issues/31#issuecomment-302391277
|
|
// Prepend `:scope ` if needed.
|
|
class PSelectorSpathTask extends PSelectorTask {
|
|
constructor(task) {
|
|
super();
|
|
this.spath = task[1];
|
|
this.nth = /^(?:\s*[+~]|:)/.test(this.spath);
|
|
if ( this.nth ) { return; }
|
|
if ( /^\s*>/.test(this.spath) ) {
|
|
this.spath = `:scope ${this.spath.trim()}`;
|
|
}
|
|
}
|
|
transpose(node, output) {
|
|
const nodes = this.nth
|
|
? PSelectorSpathTask.qsa(node, this.spath)
|
|
: node.querySelectorAll(this.spath);
|
|
for ( const node of nodes ) {
|
|
output.push(node);
|
|
}
|
|
}
|
|
// Helper method for other operators.
|
|
static qsa(node, selector) {
|
|
const parent = node.parentElement;
|
|
if ( parent === null ) { return []; }
|
|
let pos = 1;
|
|
for (;;) {
|
|
node = node.previousElementSibling;
|
|
if ( node === null ) { break; }
|
|
pos += 1;
|
|
}
|
|
return parent.querySelectorAll(
|
|
`:scope > :nth-child(${pos})${selector}`
|
|
);
|
|
}
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
class PSelectorUpwardTask extends PSelectorTask {
|
|
constructor(task) {
|
|
super();
|
|
const arg = task[1];
|
|
if ( typeof arg === 'number' ) {
|
|
this.i = arg;
|
|
} else {
|
|
this.s = arg;
|
|
}
|
|
}
|
|
transpose(node, output) {
|
|
if ( this.s !== '' ) {
|
|
const parent = node.parentElement;
|
|
if ( parent === null ) { return; }
|
|
node = parent.closest(this.s);
|
|
if ( node === null ) { return; }
|
|
} else {
|
|
let nth = this.i;
|
|
for (;;) {
|
|
node = node.parentElement;
|
|
if ( node === null ) { return; }
|
|
nth -= 1;
|
|
if ( nth === 0 ) { break; }
|
|
}
|
|
}
|
|
output.push(node);
|
|
}
|
|
}
|
|
PSelectorUpwardTask.prototype.i = 0;
|
|
PSelectorUpwardTask.prototype.s = '';
|
|
|
|
/******************************************************************************/
|
|
|
|
class PSelectorWatchAttrs extends PSelectorTask {
|
|
constructor(task) {
|
|
super();
|
|
this.observer = null;
|
|
this.observed = new WeakSet();
|
|
this.observerOptions = {
|
|
attributes: true,
|
|
subtree: true,
|
|
};
|
|
const attrs = task[1];
|
|
if ( Array.isArray(attrs) && attrs.length !== 0 ) {
|
|
this.observerOptions.attributeFilter = task[1];
|
|
}
|
|
}
|
|
// TODO: Is it worth trying to re-apply only the current selector?
|
|
handler() {
|
|
if ( proceduralFilterer instanceof Object ) {
|
|
proceduralFilterer.onDOMChanged([ null ]);
|
|
}
|
|
}
|
|
transpose(node, output) {
|
|
output.push(node);
|
|
if ( this.observed.has(node) ) { return; }
|
|
if ( this.observer === null ) {
|
|
this.observer = new MutationObserver(this.handler);
|
|
}
|
|
this.observer.observe(node, this.observerOptions);
|
|
this.observed.add(node);
|
|
}
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
class PSelectorXpathTask extends PSelectorTask {
|
|
constructor(task) {
|
|
super();
|
|
this.xpe = document.createExpression(task[1], null);
|
|
this.xpr = null;
|
|
}
|
|
transpose(node, output) {
|
|
this.xpr = this.xpe.evaluate(
|
|
node,
|
|
XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE,
|
|
this.xpr
|
|
);
|
|
let j = this.xpr.snapshotLength;
|
|
while ( j-- ) {
|
|
const node = this.xpr.snapshotItem(j);
|
|
if ( node.nodeType === 1 ) {
|
|
output.push(node);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
class PSelector {
|
|
constructor(o) {
|
|
this.raw = o.raw;
|
|
this.selector = o.selector;
|
|
this.tasks = [];
|
|
const tasks = [];
|
|
if ( Array.isArray(o.tasks) === false ) { return; }
|
|
for ( const task of o.tasks ) {
|
|
const ctor = this.operatorToTaskMap.get(task[0]) || PSelectorVoidTask;
|
|
tasks.push(new ctor(task));
|
|
}
|
|
this.tasks = tasks;
|
|
}
|
|
prime(input) {
|
|
const root = input || document;
|
|
if ( this.selector === '' ) { return [ root ]; }
|
|
if ( input !== document ) {
|
|
const c0 = this.selector.charCodeAt(0);
|
|
if ( c0 === 0x2B /* + */ || c0 === 0x7E /* ~ */ ) {
|
|
return Array.from(PSelectorSpathTask.qsa(input, this.selector));
|
|
} else if ( c0 === 0x3E /* > */ ) {
|
|
return Array.from(input.querySelectorAll(`:scope ${this.selector}`));
|
|
}
|
|
}
|
|
return Array.from(root.querySelectorAll(this.selector));
|
|
}
|
|
exec(input) {
|
|
let nodes = this.prime(input);
|
|
for ( const task of this.tasks ) {
|
|
if ( nodes.length === 0 ) { break; }
|
|
const transposed = [];
|
|
task.begin();
|
|
for ( const node of nodes ) {
|
|
task.transpose(node, transposed);
|
|
}
|
|
task.end(transposed);
|
|
nodes = transposed;
|
|
}
|
|
return nodes;
|
|
}
|
|
test(input) {
|
|
const nodes = this.prime(input);
|
|
for ( const node of nodes ) {
|
|
let output = [ node ];
|
|
for ( const task of this.tasks ) {
|
|
const transposed = [];
|
|
task.begin();
|
|
for ( const node of output ) {
|
|
task.transpose(node, transposed);
|
|
}
|
|
task.end(transposed);
|
|
output = transposed;
|
|
if ( output.length === 0 ) { break; }
|
|
}
|
|
if ( output.length !== 0 ) { return true; }
|
|
}
|
|
return false;
|
|
}
|
|
}
|
|
PSelector.prototype.operatorToTaskMap = new Map([
|
|
[ 'has', PSelectorIfTask ],
|
|
[ 'has-text', PSelectorHasTextTask ],
|
|
[ 'if', PSelectorIfTask ],
|
|
[ 'if-not', PSelectorIfNotTask ],
|
|
[ 'matches-attr', PSelectorMatchesAttrTask ],
|
|
[ 'matches-css', PSelectorMatchesCSSTask ],
|
|
[ 'matches-css-after', PSelectorMatchesCSSAfterTask ],
|
|
[ 'matches-css-before', PSelectorMatchesCSSBeforeTask ],
|
|
[ 'matches-media', PSelectorMatchesMediaTask ],
|
|
[ 'matches-path', PSelectorMatchesPathTask ],
|
|
[ 'min-text-length', PSelectorMinTextLengthTask ],
|
|
[ 'not', PSelectorIfNotTask ],
|
|
[ 'others', PSelectorOthersTask ],
|
|
[ 'spath', PSelectorSpathTask ],
|
|
[ 'upward', PSelectorUpwardTask ],
|
|
[ 'watch-attr', PSelectorWatchAttrs ],
|
|
[ 'xpath', PSelectorXpathTask ],
|
|
]);
|
|
|
|
/******************************************************************************/
|
|
|
|
class PSelectorRoot extends PSelector {
|
|
constructor(o) {
|
|
super(o);
|
|
this.budget = 200; // I arbitrary picked a 1/5 second
|
|
this.raw = o.raw;
|
|
this.cost = 0;
|
|
this.lastAllowanceTime = 0;
|
|
this.action = o.action;
|
|
}
|
|
prime(input) {
|
|
try {
|
|
return super.prime(input);
|
|
} catch (ex) {
|
|
}
|
|
return [];
|
|
}
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
class ProceduralFilterer {
|
|
constructor(selectors) {
|
|
this.selectors = [];
|
|
this.masterToken = this.randomToken();
|
|
this.styleTokenMap = new Map();
|
|
this.styledNodes = new Set();
|
|
this.timer = undefined;
|
|
this.hideStyle = 'display:none!important;';
|
|
this.addSelectors(selectors);
|
|
// Important: commit now (do not go through onDOMChanged) to be sure
|
|
// first pass is going to happen asap.
|
|
this.uBOL_commitNow();
|
|
}
|
|
|
|
addSelectors() {
|
|
for ( const selector of selectors ) {
|
|
const pselector = new PSelectorRoot(selector);
|
|
this.primeProceduralSelector(pselector);
|
|
this.selectors.push(pselector);
|
|
}
|
|
this.onDOMChanged();
|
|
}
|
|
|
|
// This allows to perform potentially expensive initialization steps
|
|
// before the filters are ready to be applied.
|
|
primeProceduralSelector(pselector) {
|
|
if ( pselector.action === undefined ) {
|
|
this.styleTokenFromStyle(this.hideStyle);
|
|
} else if ( pselector.action[0] === 'style' ) {
|
|
this.styleTokenFromStyle(pselector.action[1]);
|
|
}
|
|
return pselector;
|
|
}
|
|
|
|
uBOL_commitNow() {
|
|
// https://github.com/uBlockOrigin/uBlock-issues/issues/341
|
|
// Be ready to unhide nodes which no longer matches any of
|
|
// the procedural selectors.
|
|
const toUnstyle = this.styledNodes;
|
|
this.styledNodes = new Set();
|
|
|
|
let t0 = Date.now();
|
|
|
|
for ( const pselector of this.selectors.values() ) {
|
|
const allowance = Math.floor((t0 - pselector.lastAllowanceTime) / 2000);
|
|
if ( allowance >= 1 ) {
|
|
pselector.budget += allowance * 50;
|
|
if ( pselector.budget > 200 ) { pselector.budget = 200; }
|
|
pselector.lastAllowanceTime = t0;
|
|
}
|
|
if ( pselector.budget <= 0 ) { continue; }
|
|
const nodes = pselector.exec();
|
|
const t1 = Date.now();
|
|
pselector.budget += t0 - t1;
|
|
if ( pselector.budget < -500 ) {
|
|
console.info('uBOL: disabling %s', pselector.raw);
|
|
pselector.budget = -0x7FFFFFFF;
|
|
}
|
|
t0 = t1;
|
|
if ( nodes.length === 0 ) { continue; }
|
|
this.processNodes(nodes, pselector.action);
|
|
}
|
|
|
|
this.unprocessNodes(toUnstyle);
|
|
}
|
|
|
|
styleTokenFromStyle(style) {
|
|
if ( style === undefined ) { return; }
|
|
let styleToken = this.styleTokenMap.get(style);
|
|
if ( styleToken !== undefined ) { return styleToken; }
|
|
styleToken = this.randomToken();
|
|
this.styleTokenMap.set(style, styleToken);
|
|
uBOL_injectCSS(`[${this.masterToken}][${styleToken}]\n{${style}}\n`);
|
|
return styleToken;
|
|
}
|
|
|
|
processNodes(nodes, action) {
|
|
const op = action && action[0] || '';
|
|
const arg = op !== '' ? action[1] : '';
|
|
switch ( op ) {
|
|
case '':
|
|
/* fall through */
|
|
case 'style': {
|
|
const styleToken = this.styleTokenFromStyle(
|
|
arg === '' ? this.hideStyle : arg
|
|
);
|
|
for ( const node of nodes ) {
|
|
node.setAttribute(this.masterToken, '');
|
|
node.setAttribute(styleToken, '');
|
|
this.styledNodes.add(node);
|
|
}
|
|
break;
|
|
}
|
|
case 'remove': {
|
|
for ( const node of nodes ) {
|
|
node.remove();
|
|
node.textContent = '';
|
|
}
|
|
break;
|
|
}
|
|
case 'remove-attr': {
|
|
const reAttr = regexFromString(arg, true);
|
|
for ( const node of nodes ) {
|
|
for ( const name of node.getAttributeNames() ) {
|
|
if ( reAttr.test(name) === false ) { continue; }
|
|
node.removeAttribute(name);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
case 'remove-class': {
|
|
const reClass = regexFromString(arg, true);
|
|
for ( const node of nodes ) {
|
|
const cl = node.classList;
|
|
for ( const name of cl.values() ) {
|
|
if ( reClass.test(name) === false ) { continue; }
|
|
cl.remove(name);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
// TODO: Current assumption is one style per hit element. Could be an
|
|
// issue if an element has multiple styling and one styling is
|
|
// brought back. Possibly too rare to care about this for now.
|
|
unprocessNodes(nodes) {
|
|
for ( const node of nodes ) {
|
|
if ( this.styledNodes.has(node) ) { continue; }
|
|
node.removeAttribute(this.masterToken);
|
|
}
|
|
}
|
|
|
|
randomToken() {
|
|
const n = Math.random();
|
|
return String.fromCharCode(n * 25 + 97) +
|
|
Math.floor(
|
|
(0.25 + n * 0.75) * Number.MAX_SAFE_INTEGER
|
|
).toString(36).slice(-8);
|
|
}
|
|
|
|
onDOMChanged() {
|
|
if ( this.timer !== undefined ) { return; }
|
|
this.timer = self.requestAnimationFrame(( ) => {
|
|
this.timer = undefined;
|
|
this.uBOL_commitNow();
|
|
});
|
|
}
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
const proceduralFilterer = new ProceduralFilterer(selectors);
|
|
|
|
const observer = new MutationObserver(mutations => {
|
|
let domChanged = false;
|
|
for ( let i = 0; i < mutations.length && !domChanged; i++ ) {
|
|
const mutation = mutations[i];
|
|
for ( const added of mutation.addedNodes ) {
|
|
if ( added.nodeType !== 1 ) { continue; }
|
|
domChanged = true;
|
|
break;
|
|
}
|
|
if ( domChanged === false ) {
|
|
for ( const removed of mutation.removedNodes ) {
|
|
if ( removed.nodeType !== 1 ) { continue; }
|
|
domChanged = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if ( domChanged === false ) { return; }
|
|
proceduralFilterer.onDOMChanged();
|
|
});
|
|
|
|
observer.observe(document, {
|
|
childList: true,
|
|
subtree: true,
|
|
});
|
|
|
|
/******************************************************************************/
|
|
|
|
})();
|
|
|
|
/******************************************************************************/
|
|
|
|
void 0;
|