mirror of https://github.com/gorhill/uBlock.git
87 lines
2.7 KiB
JavaScript
87 lines
2.7 KiB
JavaScript
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/*******************************************************************************
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uBlock Origin - a browser extension to block requests.
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Copyright (C) 2019-present Raymond Hill
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see {http://www.gnu.org/licenses/}.
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Home: https://github.com/gorhill/uBlock
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*/
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/* jshint esversion:11 */
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'use strict';
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/******************************************************************************/
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// Important!
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// Isolate from global scope
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(function uBOL_cssSpecificEntity() {
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/******************************************************************************/
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// $rulesetId$
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const specificEntityImports = self.specificEntityImports || [];
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/******************************************************************************/
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const lookupSelectors = (hn, entity, out) => {
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for ( const { argsList, entitiesMap } of specificEntityImports ) {
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let argsIndices = entitiesMap.get(entity);
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if ( argsIndices === undefined ) { continue; }
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if ( typeof argsIndices === 'number' ) { argsIndices = [ argsIndices ]; }
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for ( const argsIndex of argsIndices ) {
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const details = argsList[argsIndex];
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if ( details.n && details.n.includes(hn) ) { continue; }
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out.push(details.a);
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}
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}
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};
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let hn = '';
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try { hn = document.location.hostname; } catch(ex) { }
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const selectors = [];
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const hnparts = hn.split('.');
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const hnpartslen = hnparts.length - 1;
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for ( let i = 0; i < hnpartslen; i++ ) {
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for ( let j = hnpartslen; j > i; j-- ) {
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lookupSelectors(
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hnparts.slice(i).join('.'),
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hnparts.slice(i,j).join('.'),
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selectors
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);
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}
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}
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self.specificEntityImports = undefined;
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if ( selectors.length === 0 ) { return; }
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try {
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const sheet = new CSSStyleSheet();
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sheet.replace(`@layer{${selectors.join(',')}{display:none!important;}}`);
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document.adoptedStyleSheets = [
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...document.adoptedStyleSheets,
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sheet
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];
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} catch(ex) {
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}
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/******************************************************************************/
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})();
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/******************************************************************************/
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