mirror of
https://github.com/gorhill/uBlock.git
synced 2024-09-29 22:27:12 +02:00
2c39a1af02
Related feedback: - https://github.com/uBlockOrigin/uAssets/issues/6069#issuecomment-520254292
1791 lines
56 KiB
JavaScript
1791 lines
56 KiB
JavaScript
/*******************************************************************************
|
||
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||
uBlock Origin - a browser extension to block requests.
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Copyright (C) 2014-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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/* global CSS */
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'use strict';
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/******************************************************************************/
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/******************************************************************************/
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/*! http://mths.be/cssescape v0.2.1 by @mathias | MIT license */
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;(function(root) {
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if (!root.CSS) {
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root.CSS = {};
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||
}
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var CSS = root.CSS;
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var InvalidCharacterError = function(message) {
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this.message = message;
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};
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InvalidCharacterError.prototype = new Error();
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InvalidCharacterError.prototype.name = 'InvalidCharacterError';
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if (!CSS.escape) {
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// http://dev.w3.org/csswg/cssom/#serialize-an-identifier
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CSS.escape = function(value) {
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var string = String(value);
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var length = string.length;
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var index = -1;
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var codeUnit;
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var result = '';
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var firstCodeUnit = string.charCodeAt(0);
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while (++index < length) {
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codeUnit = string.charCodeAt(index);
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// Note: there’s no need to special-case astral symbols, surrogate
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// pairs, or lone surrogates.
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// If the character is NULL (U+0000), then throw an
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// `InvalidCharacterError` exception and terminate these steps.
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if (codeUnit === 0x0000) {
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throw new InvalidCharacterError(
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'Invalid character: the input contains U+0000.'
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);
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}
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if (
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// If the character is in the range [\1-\1F] (U+0001 to U+001F) or is
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// U+007F, […]
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(codeUnit >= 0x0001 && codeUnit <= 0x001F) || codeUnit === 0x007F ||
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// If the character is the first character and is in the range [0-9]
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// (U+0030 to U+0039), […]
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(index === 0 && codeUnit >= 0x0030 && codeUnit <= 0x0039) ||
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// If the character is the second character and is in the range [0-9]
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// (U+0030 to U+0039) and the first character is a `-` (U+002D), […]
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(
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index === 1 &&
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codeUnit >= 0x0030 && codeUnit <= 0x0039 &&
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firstCodeUnit === 0x002D
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)
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) {
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// http://dev.w3.org/csswg/cssom/#escape-a-character-as-code-point
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result += '\\' + codeUnit.toString(16) + ' ';
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continue;
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}
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// If the character is not handled by one of the above rules and is
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// greater than or equal to U+0080, is `-` (U+002D) or `_` (U+005F), or
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// is in one of the ranges [0-9] (U+0030 to U+0039), [A-Z] (U+0041 to
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// U+005A), or [a-z] (U+0061 to U+007A), […]
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if (
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codeUnit >= 0x0080 ||
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codeUnit === 0x002D ||
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codeUnit === 0x005F ||
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codeUnit >= 0x0030 && codeUnit <= 0x0039 ||
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codeUnit >= 0x0041 && codeUnit <= 0x005A ||
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codeUnit >= 0x0061 && codeUnit <= 0x007A
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) {
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// the character itself
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result += string.charAt(index);
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continue;
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}
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// Otherwise, the escaped character.
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// http://dev.w3.org/csswg/cssom/#escape-a-character
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result += '\\' + string.charAt(index);
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}
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return result;
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};
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}
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}(self));
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/******************************************************************************/
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/******************************************************************************/
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(( ) => {
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/******************************************************************************/
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if (
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window.top !== window ||
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typeof vAPI !== 'object' ||
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vAPI.domFilterer instanceof Object === false
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) {
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return;
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}
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var pickerRoot = document.getElementById(vAPI.sessionId);
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if ( pickerRoot ) { return; }
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var pickerBody = null;
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var svgOcean = null;
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var svgIslands = null;
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var svgRoot = null;
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var dialog = null;
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var taCandidate = null;
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var netFilterCandidates = [];
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var cosmeticFilterCandidates = [];
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var targetElements = [];
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var candidateElements = [];
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var bestCandidateFilter = null;
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var lastNetFilterSession = window.location.host + window.location.pathname;
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var lastNetFilterHostname = '';
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var lastNetFilterUnion = '';
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/******************************************************************************/
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// For browsers not supporting `:scope`, it's not the end of the world: the
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// suggested CSS selectors may just end up being more verbose.
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let cssScope = ':scope > ';
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try {
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document.querySelector(':scope *');
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} catch (e) {
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cssScope = '';
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}
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/******************************************************************************/
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const safeQuerySelectorAll = function(node, selector) {
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if ( node !== null ) {
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try {
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return node.querySelectorAll(selector);
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} catch (e) {
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}
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}
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return [];
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};
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/******************************************************************************/
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const rawFilterFromTextarea = function() {
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const s = taCandidate.value;
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const pos = s.indexOf('\n');
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return pos === -1 ? s.trim() : s.slice(0, pos).trim();
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};
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/******************************************************************************/
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const getElementBoundingClientRect = function(elem) {
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let rect = typeof elem.getBoundingClientRect === 'function'
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? elem.getBoundingClientRect()
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: { height: 0, left: 0, top: 0, width: 0 };
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// https://github.com/gorhill/uBlock/issues/1024
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// Try not returning an empty bounding rect.
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if ( rect.width !== 0 && rect.height !== 0 ) {
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return rect;
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}
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let left = rect.left,
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right = rect.right,
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top = rect.top,
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bottom = rect.bottom;
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for ( const child of elem.children ) {
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rect = getElementBoundingClientRect(child);
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if ( rect.width === 0 || rect.height === 0 ) {
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continue;
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}
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if ( rect.left < left ) { left = rect.left; }
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if ( rect.right > right ) { right = rect.right; }
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if ( rect.top < top ) { top = rect.top; }
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if ( rect.bottom > bottom ) { bottom = rect.bottom; }
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}
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return {
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height: bottom - top,
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left: left,
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top: top,
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width: right - left
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};
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};
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/******************************************************************************/
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const highlightElements = function(elems, force) {
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// To make mouse move handler more efficient
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if ( !force && elems.length === targetElements.length ) {
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if ( elems.length === 0 || elems[0] === targetElements[0] ) {
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return;
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}
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}
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targetElements = elems;
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const ow = pickerRoot.contentWindow.innerWidth;
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const oh = pickerRoot.contentWindow.innerHeight;
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const ocean = [
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'M0 0',
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'h', ow,
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'v', oh,
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'h-', ow,
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'z'
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];
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const islands = [];
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for ( let i = 0; i < elems.length; i++ ) {
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const elem = elems[i];
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if ( elem === pickerRoot ) {
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continue;
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}
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const rect = getElementBoundingClientRect(elem);
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// Ignore if it's not on the screen
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if ( rect.left > ow || rect.top > oh ||
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rect.left + rect.width < 0 || rect.top + rect.height < 0 ) {
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continue;
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}
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const poly = 'M' + rect.left + ' ' + rect.top +
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'h' + rect.width +
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'v' + rect.height +
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'h-' + rect.width +
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'z';
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ocean.push(poly);
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islands.push(poly);
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}
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svgOcean.setAttribute('d', ocean.join(''));
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svgIslands.setAttribute('d', islands.join('') || 'M0 0');
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};
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/******************************************************************************/
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const mergeStrings = function(urls) {
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if ( urls.length === 0 ) { return ''; }
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if (
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urls.length === 1 ||
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self.diff_match_patch instanceof Function === false
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) {
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return urls[0];
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||
}
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||
const differ = new self.diff_match_patch();
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let merged = urls[0];
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for ( let i = 1; i < urls.length; i++ ) {
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// The differ works at line granularity: we insert a linefeed after
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||
// each character to trick the differ to work at character granularity.
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||
const diffs = differ.diff_main(
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//urls[i].replace(/.(?=.)/g, '$&\n'),
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//merged.replace(/.(?=.)/g, '$&\n')
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urls[i].split('').join('\n'),
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merged.split('').join('\n')
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||
);
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||
const result = [];
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||
for ( const diff of diffs ) {
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||
if ( diff[0] !== 0 ) {
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||
result.push('*');
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||
} else {
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||
result.push(diff[1].replace(/\n+/g, ''));
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||
}
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||
}
|
||
// Keep usage of wildcards to a sane level, too many of them can cause
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||
// high overhead filters
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||
merged =
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result.join('')
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||
.replace(/\*+$/, '')
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||
.replace(/\*{2,}/g, '*')
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.replace(/([^*]{1,2}\*)(?:[^*]{1,2}\*)+/g, '$1');
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||
}
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||
return merged;
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||
};
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||
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||
/******************************************************************************/
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||
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||
// https://github.com/gorhill/uBlock/issues/1897
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||
// Ignore `data:` URI, they can't be handled by an HTTP observer.
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||
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||
const backgroundImageURLFromElement = function(elem) {
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||
const style = window.getComputedStyle(elem);
|
||
const bgImg = style.backgroundImage || '';
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||
const matches = /^url\((["']?)([^"']+)\1\)$/.exec(bgImg);
|
||
const url = matches !== null && matches.length === 3 ? matches[2] : '';
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||
return url.lastIndexOf('data:', 0) === -1 ? url.slice(0, 1024) : '';
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||
};
|
||
|
||
/******************************************************************************/
|
||
|
||
// https://github.com/gorhill/uBlock/issues/1725#issuecomment-226479197
|
||
// Limit returned string to 1024 characters.
|
||
// Also, return only URLs which will be seen by an HTTP observer.
|
||
|
||
const resourceURLFromElement = function(elem) {
|
||
const tagName = elem.localName;
|
||
const prop = netFilter1stSources[tagName];
|
||
if ( prop ) {
|
||
let src = '';
|
||
{
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||
let s = elem[prop];
|
||
if ( typeof s === 'string' && /^https?:\/\//.test(s) ) {
|
||
src = s.slice(0, 1024);
|
||
}
|
||
}
|
||
if ( typeof elem.srcset === 'string' && elem.srcset !== '' ) {
|
||
const ss = [];
|
||
for ( let s of elem.srcset.split(',') ) {
|
||
s = s.trim();
|
||
const pos = s.indexOf(' ');
|
||
if ( pos !== -1 ) { s = s.slice(0, pos); }
|
||
const parsedURL = new URL(s, document.baseURI);
|
||
if ( parsedURL.pathname.length > 1 ) {
|
||
ss.push(parsedURL.href);
|
||
}
|
||
}
|
||
if ( ss.length !== 0 ) {
|
||
if ( src !== '' ) {
|
||
ss.push(src);
|
||
}
|
||
src = mergeStrings(ss);
|
||
}
|
||
}
|
||
return src;
|
||
}
|
||
return backgroundImageURLFromElement(elem);
|
||
};
|
||
|
||
/******************************************************************************/
|
||
|
||
const netFilterFromUnion = function(toMergeURL, out) {
|
||
const parsedURL = new URL(toMergeURL, document.baseURI);
|
||
|
||
toMergeURL = parsedURL.pathname + parsedURL.search;
|
||
|
||
// Reset reference filter when dealing with unrelated URLs
|
||
if (
|
||
lastNetFilterUnion === '' ||
|
||
parsedURL.host === '' ||
|
||
parsedURL.host !== lastNetFilterHostname
|
||
) {
|
||
lastNetFilterHostname = parsedURL.host;
|
||
lastNetFilterUnion = toMergeURL;
|
||
vAPI.messaging.send(
|
||
'elementPicker',
|
||
{
|
||
what: 'elementPickerEprom',
|
||
lastNetFilterSession: lastNetFilterSession,
|
||
lastNetFilterHostname: lastNetFilterHostname,
|
||
lastNetFilterUnion: lastNetFilterUnion
|
||
}
|
||
);
|
||
return;
|
||
}
|
||
|
||
// Related URLs
|
||
lastNetFilterHostname = parsedURL.host;
|
||
|
||
let mergedURL = mergeStrings([ toMergeURL, lastNetFilterUnion ]);
|
||
if ( mergedURL !== '/*' && mergedURL !== toMergeURL ) {
|
||
const filter = '||' + lastNetFilterHostname + mergedURL;
|
||
if ( out.indexOf(filter) === -1 ) {
|
||
out.push(filter);
|
||
}
|
||
} else {
|
||
mergedURL = toMergeURL;
|
||
}
|
||
lastNetFilterUnion = mergedURL;
|
||
|
||
// Remember across element picker sessions
|
||
vAPI.messaging.send(
|
||
'elementPicker',
|
||
{
|
||
what: 'elementPickerEprom',
|
||
lastNetFilterSession: lastNetFilterSession,
|
||
lastNetFilterHostname: lastNetFilterHostname,
|
||
lastNetFilterUnion: lastNetFilterUnion
|
||
}
|
||
);
|
||
};
|
||
|
||
/******************************************************************************/
|
||
|
||
// Extract the best possible net filter, i.e. as specific as possible.
|
||
|
||
const netFilterFromElement = function(elem) {
|
||
if ( elem === null ) { return 0; }
|
||
if ( elem.nodeType !== 1 ) { return 0; }
|
||
let src = resourceURLFromElement(elem);
|
||
if ( src === '' ) { return 0; }
|
||
|
||
if ( candidateElements.indexOf(elem) === -1 ) {
|
||
candidateElements.push(elem);
|
||
}
|
||
|
||
const candidates = netFilterCandidates;
|
||
const len = candidates.length;
|
||
|
||
// Remove fragment
|
||
let pos = src.indexOf('#');
|
||
if ( pos !== -1 ) {
|
||
src = src.slice(0, pos);
|
||
}
|
||
|
||
const filter = src.replace(/^https?:\/\//, '||');
|
||
|
||
if ( bestCandidateFilter === null ) {
|
||
bestCandidateFilter = {
|
||
type: 'net',
|
||
filters: candidates,
|
||
slot: candidates.length
|
||
};
|
||
}
|
||
|
||
candidates.push(filter);
|
||
|
||
// Suggest a less narrow filter if possible
|
||
pos = filter.indexOf('?');
|
||
if ( pos !== -1 ) {
|
||
candidates.push(filter.slice(0, pos));
|
||
}
|
||
|
||
// Suggest a filter which is a result of combining more than one URL.
|
||
netFilterFromUnion(src, candidates);
|
||
|
||
return candidates.length - len;
|
||
};
|
||
|
||
const netFilter1stSources = {
|
||
'audio': 'src',
|
||
'embed': 'src',
|
||
'iframe': 'src',
|
||
'img': 'src',
|
||
'object': 'data',
|
||
'video': 'src'
|
||
};
|
||
|
||
const filterTypes = {
|
||
'audio': 'media',
|
||
'embed': 'object',
|
||
'iframe': 'subdocument',
|
||
'img': 'image',
|
||
'object': 'object',
|
||
'video': 'media',
|
||
};
|
||
|
||
/******************************************************************************/
|
||
|
||
// Extract the best possible cosmetic filter, i.e. as specific as possible.
|
||
|
||
// https://github.com/gorhill/uBlock/issues/1725
|
||
// Also take into account the `src` attribute for `img` elements -- and limit
|
||
// the value to the 1024 first characters.
|
||
|
||
const cosmeticFilterFromElement = function(elem) {
|
||
if ( elem === null ) { return 0; }
|
||
if ( elem.nodeType !== 1 ) { return 0; }
|
||
|
||
if ( candidateElements.indexOf(elem) === -1 ) {
|
||
candidateElements.push(elem);
|
||
}
|
||
|
||
let selector = '';
|
||
|
||
// Id
|
||
let v = typeof elem.id === 'string' && CSS.escape(elem.id);
|
||
if ( v ) {
|
||
selector = '#' + v;
|
||
}
|
||
|
||
// Class(es)
|
||
v = elem.classList;
|
||
if ( v ) {
|
||
let i = v.length || 0;
|
||
while ( i-- ) {
|
||
selector += '.' + CSS.escape(v.item(i));
|
||
}
|
||
}
|
||
|
||
// Tag name
|
||
const tagName = elem.localName;
|
||
|
||
// Use attributes if still no selector found.
|
||
// https://github.com/gorhill/uBlock/issues/1901
|
||
// Trim attribute value, this may help in case of malformed HTML.
|
||
if ( selector === '' ) {
|
||
let attributes = [], attr;
|
||
switch ( tagName ) {
|
||
case 'a':
|
||
v = elem.getAttribute('href');
|
||
if ( v ) {
|
||
v = v.trim().replace(/\?.*$/, '');
|
||
if ( v.length ) {
|
||
attributes.push({ k: 'href', v: v });
|
||
}
|
||
}
|
||
break;
|
||
case 'iframe':
|
||
case 'img':
|
||
v = elem.getAttribute('src');
|
||
if ( v && v.length !== 0 ) {
|
||
v = v.trim();
|
||
if ( v.startsWith('data:') ) {
|
||
let pos = v.indexOf(',');
|
||
if ( pos !== -1 ) {
|
||
v = v.slice(0, pos + 1);
|
||
}
|
||
} else if ( v.startsWith('blob:') ) {
|
||
v = new URL(v.slice(5));
|
||
v.pathname = '';
|
||
v = 'blob:' + v.href;
|
||
}
|
||
attributes.push({ k: 'src', v: v.slice(0, 256) });
|
||
break;
|
||
}
|
||
v = elem.getAttribute('alt');
|
||
if ( v && v.length !== 0 ) {
|
||
attributes.push({ k: 'alt', v: v });
|
||
break;
|
||
}
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
while ( (attr = attributes.pop()) ) {
|
||
if ( attr.v.length === 0 ) { continue; }
|
||
v = elem.getAttribute(attr.k);
|
||
if ( attr.v === v ) {
|
||
selector += '[' + attr.k + '="' + attr.v + '"]';
|
||
} else if ( v.startsWith(attr.v) ) {
|
||
selector += '[' + attr.k + '^="' + attr.v + '"]';
|
||
} else {
|
||
selector += '[' + attr.k + '*="' + attr.v + '"]';
|
||
}
|
||
}
|
||
}
|
||
|
||
// https://github.com/uBlockOrigin/uBlock-issues/issues/17
|
||
// If selector is ambiguous at this point, add the element name to
|
||
// further narrow it down.
|
||
const parentNode = elem.parentNode;
|
||
if (
|
||
selector === '' ||
|
||
safeQuerySelectorAll(parentNode, cssScope + selector).length > 1
|
||
) {
|
||
selector = tagName + selector;
|
||
}
|
||
|
||
// https://github.com/chrisaljoudi/uBlock/issues/637
|
||
// If the selector is still ambiguous at this point, further narrow using
|
||
// `nth-of-type`. It is preferable to use `nth-of-type` as opposed to
|
||
// `nth-child`, as `nth-of-type` is less volatile.
|
||
if ( safeQuerySelectorAll(parentNode, cssScope + selector).length > 1 ) {
|
||
let i = 1;
|
||
while ( elem.previousSibling !== null ) {
|
||
elem = elem.previousSibling;
|
||
if (
|
||
typeof elem.localName === 'string' &&
|
||
elem.localName === tagName
|
||
) {
|
||
i++;
|
||
}
|
||
}
|
||
selector += ':nth-of-type(' + i + ')';
|
||
}
|
||
|
||
if ( bestCandidateFilter === null ) {
|
||
bestCandidateFilter = {
|
||
type: 'cosmetic',
|
||
filters: cosmeticFilterCandidates,
|
||
slot: cosmeticFilterCandidates.length
|
||
};
|
||
}
|
||
|
||
cosmeticFilterCandidates.push('##' + selector);
|
||
|
||
return 1;
|
||
};
|
||
|
||
/******************************************************************************/
|
||
|
||
const filtersFrom = function(x, y) {
|
||
bestCandidateFilter = null;
|
||
netFilterCandidates.length = 0;
|
||
cosmeticFilterCandidates.length = 0;
|
||
candidateElements.length = 0;
|
||
|
||
// We need at least one element.
|
||
let first = null;
|
||
if ( typeof x === 'number' ) {
|
||
first = elementFromPoint(x, y);
|
||
} else if ( x instanceof HTMLElement ) {
|
||
first = x;
|
||
x = undefined;
|
||
}
|
||
|
||
// Network filter from element which was clicked.
|
||
if ( first !== null ) {
|
||
netFilterFromElement(first);
|
||
}
|
||
|
||
// Cosmetic filter candidates from ancestors.
|
||
let elem = first;
|
||
while ( elem && elem !== document.body ) {
|
||
cosmeticFilterFromElement(elem);
|
||
elem = elem.parentNode;
|
||
}
|
||
// The body tag is needed as anchor only when the immediate child
|
||
// uses `nth-of-type`.
|
||
let i = cosmeticFilterCandidates.length;
|
||
if ( i !== 0 ) {
|
||
let selector = cosmeticFilterCandidates[i-1];
|
||
if (
|
||
selector.indexOf(':nth-of-type(') !== -1 &&
|
||
safeQuerySelectorAll(document.body, selector).length > 1
|
||
) {
|
||
cosmeticFilterCandidates.push('##body');
|
||
}
|
||
}
|
||
|
||
// https://github.com/gorhill/uBlock/issues/1545
|
||
// Network filter candidates from all other elements found at point (x, y).
|
||
if ( typeof x === 'number' ) {
|
||
let attrName = pickerRoot.id + '-clickblind';
|
||
let previous;
|
||
elem = first;
|
||
while ( elem !== null ) {
|
||
previous = elem;
|
||
elem.setAttribute(attrName, '');
|
||
elem = elementFromPoint(x, y);
|
||
if ( elem === null || elem === previous ) {
|
||
break;
|
||
}
|
||
netFilterFromElement(elem);
|
||
}
|
||
let elems = document.querySelectorAll('[' + attrName + ']');
|
||
i = elems.length;
|
||
while ( i-- ) {
|
||
elems[i].removeAttribute(attrName);
|
||
}
|
||
|
||
netFilterFromElement(document.body);
|
||
}
|
||
|
||
return netFilterCandidates.length + cosmeticFilterCandidates.length;
|
||
};
|
||
|
||
/*******************************************************************************
|
||
|
||
filterToDOMInterface.set
|
||
@desc Look-up all the HTML elements matching the filter passed in
|
||
argument.
|
||
@param string, a cosmetic or network filter.
|
||
@param function, called once all items matching the filter have been
|
||
collected.
|
||
@return array, or undefined if the filter is invalid.
|
||
|
||
filterToDOMInterface.preview
|
||
@desc Apply/unapply filter to the DOM.
|
||
@param string, a cosmetic of network filter, or literal false to remove
|
||
the effects of the filter on the DOM.
|
||
@return undefined.
|
||
|
||
TODO: need to be revised once I implement chained cosmetic operators.
|
||
|
||
*/
|
||
|
||
const filterToDOMInterface = (( ) => {
|
||
const reHnAnchorPrefix = '^[\\w-]+://(?:[^/?#]+\\.)?';
|
||
const reCaret = '(?:[^%.0-9a-z_-]|$)';
|
||
const rePseudoElements = /:(?::?after|:?before|:[a-z-]+)$/;
|
||
|
||
// Net filters: we need to lookup manually -- translating into a foolproof
|
||
// CSS selector is just not possible.
|
||
//
|
||
// https://github.com/chrisaljoudi/uBlock/issues/945
|
||
// Transform into a regular expression, this allows the user to
|
||
// edit and insert wildcard(s) into the proposed filter.
|
||
// https://www.reddit.com/r/uBlockOrigin/comments/c5do7w/
|
||
// Better handling of pure hostname filters. Also, discard single
|
||
// alphanumeric character filters.
|
||
const fromNetworkFilter = function(filter) {
|
||
const out = [];
|
||
if ( /^[0-9a-z]$/i.test(filter) ) { return out; }
|
||
let reStr = '';
|
||
if (
|
||
filter.length > 2 &&
|
||
filter.startsWith('/') &&
|
||
filter.endsWith('/')
|
||
) {
|
||
reStr = filter.slice(1, -1);
|
||
} else if ( /^\w[\w.-]*[a-z]$/i.test(filter) ) {
|
||
reStr = reHnAnchorPrefix +
|
||
filter.toLowerCase().replace(/\./g, '\\.') +
|
||
reCaret;
|
||
} else {
|
||
let rePrefix = '', reSuffix = '';
|
||
if ( filter.startsWith('||') ) {
|
||
rePrefix = reHnAnchorPrefix;
|
||
filter = filter.slice(2);
|
||
} else if ( filter.startsWith('|') ) {
|
||
rePrefix = '^';
|
||
filter = filter.slice(1);
|
||
}
|
||
if ( filter.endsWith('|') ) {
|
||
reSuffix = '$';
|
||
filter = filter.slice(0, -1);
|
||
}
|
||
reStr = rePrefix +
|
||
filter.replace(/[.+?${}()|[\]\\]/g, '\\$&')
|
||
.replace(/\*+/g, '.*')
|
||
.replace(/\^/g, reCaret) +
|
||
reSuffix;
|
||
}
|
||
let reFilter = null;
|
||
try {
|
||
reFilter = new RegExp(reStr);
|
||
}
|
||
catch (e) {
|
||
return out;
|
||
}
|
||
|
||
// Lookup by tag names.
|
||
const elems = document.querySelectorAll(
|
||
Object.keys(netFilter1stSources).join()
|
||
);
|
||
for ( const elem of elems ) {
|
||
let srcProp = netFilter1stSources[elem.localName];
|
||
let src = elem[srcProp];
|
||
if ( typeof src !== 'string' || src.length === 0 ) {
|
||
if (
|
||
typeof elem.srcset === 'string' &&
|
||
elem.srcset !== '' &&
|
||
typeof elem.currentSrc === 'string'
|
||
) {
|
||
src = elem.currentSrc;
|
||
}
|
||
}
|
||
if ( src && reFilter.test(src) ) {
|
||
out.push({
|
||
type: 'network',
|
||
elem: elem,
|
||
src: srcProp,
|
||
opts: filterTypes[elem.localName],
|
||
});
|
||
}
|
||
}
|
||
|
||
// Find matching background image in current set of candidate elements.
|
||
for ( const elem of candidateElements ) {
|
||
if ( reFilter.test(backgroundImageURLFromElement(elem)) ) {
|
||
out.push({
|
||
type: 'network',
|
||
elem: elem,
|
||
style: 'background-image',
|
||
opts: 'image',
|
||
});
|
||
}
|
||
}
|
||
|
||
return out;
|
||
};
|
||
|
||
// Cosmetic filters: these are straight CSS selectors.
|
||
//
|
||
// https://github.com/uBlockOrigin/uBlock-issues/issues/389
|
||
// Test filter using comma-separated list to better detect invalid CSS
|
||
// selectors.
|
||
//
|
||
// https://github.com/gorhill/uBlock/issues/2515
|
||
// Remove trailing pseudo-element when querying.
|
||
const fromPlainCosmeticFilter = function(raw) {
|
||
let elems;
|
||
try {
|
||
document.documentElement.matches(`${raw},\na`);
|
||
elems = document.querySelectorAll(
|
||
raw.replace(rePseudoElements, '')
|
||
);
|
||
}
|
||
catch (e) {
|
||
return;
|
||
}
|
||
const out = [];
|
||
for ( const elem of elems ) {
|
||
if ( elem === pickerRoot ) { continue; }
|
||
out.push({ type: 'cosmetic', elem, raw });
|
||
}
|
||
return out;
|
||
};
|
||
|
||
// https://github.com/gorhill/uBlock/issues/1772
|
||
// Handle procedural cosmetic filters.
|
||
//
|
||
// https://github.com/gorhill/uBlock/issues/2515
|
||
// Remove trailing pseudo-element when querying.
|
||
const fromCompiledCosmeticFilter = function(raw) {
|
||
if ( typeof raw !== 'string' ) { return; }
|
||
let elems;
|
||
try {
|
||
const o = JSON.parse(raw);
|
||
if ( o.style ) {
|
||
elems = document.querySelectorAll(
|
||
o.style[0].replace(rePseudoElements, '')
|
||
);
|
||
lastAction = o.style[0] + ' {' + o.style[1] + '}';
|
||
} else if ( o.tasks ) {
|
||
elems = vAPI.domFilterer.createProceduralFilter(o).exec();
|
||
}
|
||
} catch(ex) {
|
||
return;
|
||
}
|
||
if ( !elems ) { return; }
|
||
const out = [];
|
||
for ( const elem of elems ) {
|
||
out.push({ type: 'cosmetic', elem, raw });
|
||
}
|
||
return out;
|
||
};
|
||
|
||
let lastFilter,
|
||
lastResultset,
|
||
lastAction,
|
||
appliedStyleTag,
|
||
applied = false,
|
||
previewing = false;
|
||
|
||
const queryAll = function(filter, callback) {
|
||
filter = filter.trim();
|
||
if ( filter === lastFilter ) {
|
||
callback(lastResultset);
|
||
return;
|
||
}
|
||
unapply();
|
||
if ( filter === '' ) {
|
||
lastFilter = '';
|
||
lastResultset = [];
|
||
callback(lastResultset);
|
||
return;
|
||
}
|
||
lastFilter = filter;
|
||
lastAction = undefined;
|
||
if ( filter.startsWith('##') === false ) {
|
||
lastResultset = fromNetworkFilter(filter);
|
||
if ( previewing ) { apply(); }
|
||
callback(lastResultset);
|
||
return;
|
||
}
|
||
const selector = filter.slice(2);
|
||
lastResultset = fromPlainCosmeticFilter(selector);
|
||
if ( lastResultset ) {
|
||
if ( previewing ) { apply(); }
|
||
callback(lastResultset);
|
||
return;
|
||
}
|
||
// Procedural cosmetic filter
|
||
vAPI.messaging.send(
|
||
'elementPicker',
|
||
{ what: 'compileCosmeticFilterSelector', selector: selector },
|
||
response => {
|
||
lastResultset = fromCompiledCosmeticFilter(response);
|
||
if ( previewing ) { apply(); }
|
||
callback(lastResultset);
|
||
}
|
||
);
|
||
};
|
||
|
||
// https://github.com/gorhill/uBlock/issues/1629
|
||
// Avoid hiding the element picker's related elements.
|
||
const applyHide = function() {
|
||
const htmlElem = document.documentElement;
|
||
for ( const item of lastResultset ) {
|
||
const elem = item.elem;
|
||
if ( elem === pickerRoot ) { continue; }
|
||
if (
|
||
(elem !== htmlElem) &&
|
||
(item.type === 'cosmetic' || item.type === 'network' && item.src !== undefined)
|
||
) {
|
||
vAPI.domFilterer.hideNode(elem);
|
||
item.hidden = true;
|
||
}
|
||
if ( item.type === 'network' && item.style === 'background-image' ) {
|
||
const style = elem.style;
|
||
item.backgroundImage = style.getPropertyValue('background-image');
|
||
item.backgroundImagePriority = style.getPropertyPriority('background-image');
|
||
style.setProperty('background-image', 'none', 'important');
|
||
}
|
||
}
|
||
};
|
||
|
||
const unapplyHide = function() {
|
||
if ( lastResultset === undefined ) { return; }
|
||
for ( const item of lastResultset ) {
|
||
if ( item.hidden === true ) {
|
||
vAPI.domFilterer.unhideNode(item.elem);
|
||
item.hidden = false;
|
||
}
|
||
if ( item.hasOwnProperty('backgroundImage') ) {
|
||
item.elem.style.setProperty(
|
||
'background-image',
|
||
item.backgroundImage,
|
||
item.backgroundImagePriority
|
||
);
|
||
delete item.backgroundImage;
|
||
}
|
||
}
|
||
};
|
||
|
||
const unapplyStyle = function() {
|
||
if ( !appliedStyleTag || appliedStyleTag.parentNode === null ) {
|
||
return;
|
||
}
|
||
appliedStyleTag.parentNode.removeChild(appliedStyleTag);
|
||
};
|
||
|
||
const applyStyle = function() {
|
||
if ( !appliedStyleTag ) {
|
||
appliedStyleTag = document.createElement('style');
|
||
appliedStyleTag.setAttribute('type', 'text/css');
|
||
}
|
||
appliedStyleTag.textContent = lastAction;
|
||
if ( appliedStyleTag.parentNode === null ) {
|
||
document.head.appendChild(appliedStyleTag);
|
||
}
|
||
};
|
||
|
||
const apply = function() {
|
||
if ( applied ) {
|
||
unapply();
|
||
}
|
||
if ( lastResultset === undefined ) { return; }
|
||
if ( typeof lastAction === 'string' ) {
|
||
applyStyle();
|
||
} else {
|
||
applyHide();
|
||
}
|
||
applied = true;
|
||
};
|
||
|
||
const unapply = function() {
|
||
if ( !applied ) { return; }
|
||
if ( typeof lastAction === 'string' ) {
|
||
unapplyStyle();
|
||
} else {
|
||
unapplyHide();
|
||
}
|
||
applied = false;
|
||
};
|
||
|
||
// https://www.reddit.com/r/uBlockOrigin/comments/c62irc/
|
||
// Support injecting the cosmetic filters into the DOM filterer
|
||
// immediately rather than wait for the next page load.
|
||
const preview = function(rawFilter, permanent = false) {
|
||
previewing = rawFilter !== false;
|
||
pickerBody.classList.toggle('preview', previewing);
|
||
if ( previewing === false ) {
|
||
return unapply();
|
||
}
|
||
queryAll(rawFilter, items => {
|
||
if ( items === undefined ) { return; }
|
||
apply();
|
||
if ( permanent === false ) { return; }
|
||
if ( vAPI.domFilterer instanceof Object === false ) { return; }
|
||
const cssSelectors = new Set();
|
||
const proceduralSelectors = new Set();
|
||
for ( const item of items ) {
|
||
if ( item.type !== 'cosmetic' ) { continue; }
|
||
if ( item.raw.startsWith('{') ) {
|
||
proceduralSelectors.add(item.raw);
|
||
} else {
|
||
cssSelectors.add(item.raw);
|
||
}
|
||
}
|
||
if ( cssSelectors.size !== 0 ) {
|
||
vAPI.domFilterer.addCSSRule(
|
||
Array.from(cssSelectors),
|
||
'display:none!important;'
|
||
);
|
||
}
|
||
if ( proceduralSelectors.size !== 0 ) {
|
||
vAPI.domFilterer.addProceduralSelectors(
|
||
Array.from(proceduralSelectors)
|
||
);
|
||
}
|
||
});
|
||
};
|
||
|
||
return {
|
||
previewing: function() { return previewing; },
|
||
preview: preview,
|
||
set: queryAll
|
||
};
|
||
})();
|
||
|
||
/******************************************************************************/
|
||
|
||
const userFilterFromCandidate = function(callback) {
|
||
let v = rawFilterFromTextarea();
|
||
filterToDOMInterface.set(v, items => {
|
||
if ( !items || items.length === 0 ) {
|
||
callback();
|
||
return;
|
||
}
|
||
|
||
// https://github.com/gorhill/uBlock/issues/738
|
||
// Trim dots.
|
||
let hostname = window.location.hostname;
|
||
if ( hostname.slice(-1) === '.' ) {
|
||
hostname = hostname.slice(0, -1);
|
||
}
|
||
|
||
// Cosmetic filter?
|
||
if ( v.startsWith('##') ) {
|
||
callback(hostname + v, true);
|
||
return;
|
||
}
|
||
|
||
// Assume net filter
|
||
const opts = [];
|
||
|
||
// If no domain included in filter, we need domain option
|
||
if ( v.startsWith('||') === false ) {
|
||
opts.push(`domain=${hostname}`);
|
||
}
|
||
|
||
const item = items[0];
|
||
if ( item.opts ) {
|
||
opts.push(item.opts);
|
||
}
|
||
|
||
if ( opts.length ) {
|
||
v += '$' + opts.join(',');
|
||
}
|
||
|
||
callback(v);
|
||
});
|
||
};
|
||
|
||
/******************************************************************************/
|
||
|
||
const onCandidateChanged = (function() {
|
||
const process = function(items) {
|
||
const elems = [];
|
||
const valid = items !== undefined;
|
||
if ( valid ) {
|
||
for ( const item of items ) {
|
||
elems.push(item.elem);
|
||
}
|
||
}
|
||
pickerBody.querySelector('#resultsetCount').textContent = valid ?
|
||
items.length.toLocaleString() :
|
||
'E';
|
||
dialog.querySelector('section').classList.toggle('invalidFilter', !valid);
|
||
dialog.querySelector('#create').disabled = elems.length === 0;
|
||
highlightElements(elems, true);
|
||
};
|
||
|
||
return function() {
|
||
filterToDOMInterface.set(rawFilterFromTextarea(), process);
|
||
};
|
||
})();
|
||
|
||
/******************************************************************************/
|
||
|
||
const candidateFromFilterChoice = function(filterChoice) {
|
||
let slot = filterChoice.slot;
|
||
let filters = filterChoice.filters;
|
||
let filter = filters[slot];
|
||
|
||
if ( filter === undefined ) { return ''; }
|
||
|
||
// For net filters there no such thing as a path
|
||
if ( filter.startsWith('##') === false ) { return filter; }
|
||
|
||
// At this point, we have a cosmetic filter
|
||
|
||
// Modifier means "target broadly". Hence:
|
||
// - Do not compute exact path.
|
||
// - Discard narrowing directives.
|
||
// - Remove the id if one or more classes exist
|
||
// TODO: should remove tag name too? ¯\_(ツ)_/¯
|
||
if ( filterChoice.modifier ) {
|
||
filter = filter.replace(/:nth-of-type\(\d+\)/, '');
|
||
// https://github.com/uBlockOrigin/uBlock-issues/issues/162
|
||
// Mind escaped periods: they do not denote a class identifier.
|
||
if ( filter.charAt(2) === '#' ) {
|
||
let pos = filter.search(/[^\\]\./);
|
||
if ( pos !== -1 ) {
|
||
filter = '##' + filter.slice(pos + 1);
|
||
}
|
||
}
|
||
return filter;
|
||
}
|
||
|
||
// Return path: the target element, then all siblings prepended
|
||
let selector = '', joiner = '';
|
||
for ( ; slot < filters.length; slot++ ) {
|
||
filter = filters[slot];
|
||
// Remove all classes when an id exists.
|
||
// https://github.com/uBlockOrigin/uBlock-issues/issues/162
|
||
// Mind escaped periods: they do not denote a class identifier.
|
||
if ( filter.charAt(2) === '#' ) {
|
||
filter = filter.replace(/([^\\])\..+$/, '$1');
|
||
}
|
||
selector = filter.slice(2) + joiner + selector;
|
||
// Stop at any element with an id: these are unique in a web page
|
||
if ( filter.startsWith('###') ) { break; }
|
||
// Stop if current selector matches only one element on the page
|
||
if ( document.querySelectorAll(selector).length === 1 ) { break; }
|
||
joiner = ' > ';
|
||
}
|
||
|
||
// https://github.com/gorhill/uBlock/issues/2519
|
||
// https://github.com/uBlockOrigin/uBlock-issues/issues/17
|
||
if (
|
||
slot === filters.length &&
|
||
selector.startsWith('body > ') === false &&
|
||
document.querySelectorAll(selector).length > 1
|
||
) {
|
||
selector = 'body > ' + selector;
|
||
}
|
||
|
||
return '##' + selector;
|
||
};
|
||
|
||
/******************************************************************************/
|
||
|
||
const filterChoiceFromEvent = function(ev) {
|
||
let li = ev.target;
|
||
const isNetFilter = li.textContent.startsWith('##') === false;
|
||
const r = {
|
||
filters: isNetFilter ? netFilterCandidates : cosmeticFilterCandidates,
|
||
slot: 0,
|
||
modifier: ev.ctrlKey || ev.metaKey
|
||
};
|
||
while ( li.previousSibling !== null ) {
|
||
li = li.previousSibling;
|
||
r.slot += 1;
|
||
}
|
||
return r;
|
||
};
|
||
|
||
/******************************************************************************/
|
||
|
||
const onDialogClicked = function(ev) {
|
||
if ( ev.isTrusted === false ) { return; }
|
||
|
||
// If the dialog is hidden, clicking on it force it to become visible.
|
||
if ( dialog.classList.contains('hide') ) {
|
||
dialog.classList.add('show');
|
||
dialog.classList.remove('hide');
|
||
}
|
||
|
||
else if ( ev.target === null ) {
|
||
/* do nothing */
|
||
}
|
||
|
||
else if ( ev.target.id === 'create' ) {
|
||
// We have to exit from preview mode: this guarantees matching elements
|
||
// will be found for the candidate filter.
|
||
filterToDOMInterface.preview(false);
|
||
userFilterFromCandidate((filter = undefined, isCosmetic = false) => {
|
||
if ( filter === undefined ) { return; }
|
||
vAPI.messaging.send(
|
||
'elementPicker',
|
||
{
|
||
what: 'createUserFilter',
|
||
autoComment: true,
|
||
filters: filter,
|
||
origin: window.location.origin,
|
||
pageDomain: window.location.hostname,
|
||
killCache: isCosmetic === false,
|
||
}
|
||
);
|
||
filterToDOMInterface.preview(rawFilterFromTextarea(), true);
|
||
stopPicker();
|
||
});
|
||
}
|
||
|
||
else if ( ev.target.id === 'pick' ) {
|
||
unpausePicker();
|
||
}
|
||
|
||
else if ( ev.target.id === 'quit' ) {
|
||
filterToDOMInterface.preview(false);
|
||
stopPicker();
|
||
}
|
||
|
||
else if ( ev.target.id === 'preview' ) {
|
||
if ( filterToDOMInterface.previewing() ) {
|
||
filterToDOMInterface.preview(false);
|
||
} else {
|
||
filterToDOMInterface.preview(rawFilterFromTextarea());
|
||
}
|
||
highlightElements(targetElements, true);
|
||
}
|
||
|
||
else if ( ev.target.parentNode.classList.contains('changeFilter') ) {
|
||
taCandidate.value = candidateFromFilterChoice(filterChoiceFromEvent(ev));
|
||
onCandidateChanged();
|
||
}
|
||
|
||
ev.stopPropagation();
|
||
ev.preventDefault();
|
||
};
|
||
|
||
/******************************************************************************/
|
||
|
||
const removeAllChildren = function(parent) {
|
||
while ( parent.firstChild ) {
|
||
parent.removeChild(parent.firstChild);
|
||
}
|
||
};
|
||
|
||
/******************************************************************************/
|
||
|
||
const showDialog = function(options) {
|
||
pausePicker();
|
||
|
||
options = options || {};
|
||
|
||
// Typically the dialog will be forced to be visible when using a
|
||
// touch-aware device.
|
||
dialog.classList.toggle('show', options.show === true);
|
||
dialog.classList.remove('hide');
|
||
|
||
// Create lists of candidate filters
|
||
const populate = function(src, des) {
|
||
const root = dialog.querySelector(des);
|
||
const ul = root.querySelector('ul');
|
||
removeAllChildren(ul);
|
||
for ( let i = 0; i < src.length; i++ ) {
|
||
const li = document.createElement('li');
|
||
li.textContent = src[i];
|
||
ul.appendChild(li);
|
||
}
|
||
if ( src.length !== 0 ) {
|
||
root.style.removeProperty('display');
|
||
} else {
|
||
root.style.setProperty('display', 'none', 'important');
|
||
}
|
||
};
|
||
|
||
populate(netFilterCandidates, '#netFilters');
|
||
populate(cosmeticFilterCandidates, '#cosmeticFilters');
|
||
|
||
dialog.querySelector('ul').style.display =
|
||
netFilterCandidates.length || cosmeticFilterCandidates.length
|
||
? ''
|
||
: 'none';
|
||
dialog.querySelector('#create').disabled = true;
|
||
|
||
// Auto-select a candidate filter
|
||
|
||
if ( bestCandidateFilter === null ) {
|
||
taCandidate.value = '';
|
||
return;
|
||
}
|
||
|
||
const filterChoice = {
|
||
filters: bestCandidateFilter.filters,
|
||
slot: bestCandidateFilter.slot,
|
||
modifier: options.modifier || false
|
||
};
|
||
|
||
taCandidate.value = candidateFromFilterChoice(filterChoice);
|
||
onCandidateChanged();
|
||
};
|
||
|
||
/******************************************************************************/
|
||
|
||
// https://www.reddit.com/r/uBlockOrigin/comments/bktxtb/scrolling_doesnt_work/emn901o
|
||
// Override 'fixed' position property on body element if present.
|
||
|
||
const zap = function() {
|
||
if ( targetElements.length === 0 ) { return; }
|
||
|
||
const getStyleValue = function(elem, prop) {
|
||
const style = window.getComputedStyle(elem);
|
||
return style ? style[prop] : '';
|
||
};
|
||
|
||
let elem = targetElements[0];
|
||
// Heuristic to detect scroll-locking: remove such lock when detected.
|
||
if (
|
||
parseInt(getStyleValue(elem, 'zIndex'), 10) >= 1000 ||
|
||
getStyleValue(elem, 'position') === 'fixed'
|
||
) {
|
||
const doc = document;
|
||
if ( getStyleValue(doc.body, 'overflowY') === 'hidden' ) {
|
||
doc.body.style.setProperty('overflow', 'auto', 'important');
|
||
}
|
||
if ( getStyleValue(doc.body, 'position') === 'fixed' ) {
|
||
doc.body.style.setProperty('position', 'static', 'important');
|
||
}
|
||
if ( getStyleValue(doc.documentElement, 'overflowY') === 'hidden' ) {
|
||
doc.documentElement.style.setProperty('overflow', 'auto', 'important');
|
||
}
|
||
}
|
||
|
||
elem.parentNode.removeChild(elem);
|
||
elem = elementFromPoint();
|
||
highlightElements(elem ? [ elem ] : []);
|
||
};
|
||
|
||
/******************************************************************************/
|
||
|
||
const elementFromPoint = (( ) => {
|
||
let lastX, lastY;
|
||
|
||
return (x, y) => {
|
||
if ( x !== undefined ) {
|
||
lastX = x; lastY = y;
|
||
} else if ( lastX !== undefined ) {
|
||
x = lastX; y = lastY;
|
||
} else {
|
||
return null;
|
||
}
|
||
if ( !pickerRoot ) { return null; }
|
||
pickerRoot.style.setProperty('pointer-events', 'none', 'important');
|
||
let elem = document.elementFromPoint(x, y);
|
||
if ( elem === document.body || elem === document.documentElement ) {
|
||
elem = null;
|
||
}
|
||
// https://github.com/uBlockOrigin/uBlock-issues/issues/380
|
||
pickerRoot.style.setProperty('pointer-events', 'auto', 'important');
|
||
return elem;
|
||
};
|
||
})();
|
||
|
||
/******************************************************************************/
|
||
|
||
const onSvgHovered = (function() {
|
||
let timer;
|
||
let mx = 0, my = 0;
|
||
|
||
const onTimer = function() {
|
||
timer = undefined;
|
||
const elem = elementFromPoint(mx, my);
|
||
highlightElements(elem ? [elem] : []);
|
||
};
|
||
|
||
return function onMove(ev) {
|
||
mx = ev.clientX;
|
||
my = ev.clientY;
|
||
if ( timer === undefined ) {
|
||
timer = vAPI.setTimeout(onTimer, 40);
|
||
}
|
||
};
|
||
})();
|
||
|
||
/*******************************************************************************
|
||
|
||
Swipe right:
|
||
If picker not paused: quit picker
|
||
If picker paused and dialog visible: hide dialog
|
||
If picker paused and dialog not visible: quit picker
|
||
|
||
Swipe left:
|
||
If picker paused and dialog not visible: show dialog
|
||
|
||
*/
|
||
|
||
const onSvgTouchStartStop = (function() {
|
||
var startX,
|
||
startY;
|
||
return function onTouch(ev) {
|
||
if ( ev.type === 'touchstart' ) {
|
||
startX = ev.touches[0].screenX;
|
||
startY = ev.touches[0].screenY;
|
||
return;
|
||
}
|
||
if ( startX === undefined ) { return; }
|
||
if ( ev.cancelable === false ) { return; }
|
||
var stopX = ev.changedTouches[0].screenX,
|
||
stopY = ev.changedTouches[0].screenY,
|
||
angle = Math.abs(Math.atan2(stopY - startY, stopX - startX)),
|
||
distance = Math.sqrt(
|
||
Math.pow(stopX - startX, 2),
|
||
Math.pow(stopY - startY, 2)
|
||
);
|
||
// Interpret touch events as a click events if swipe is not valid.
|
||
if ( distance < 32 ) {
|
||
onSvgClicked({
|
||
type: 'touch',
|
||
target: ev.target,
|
||
clientX: ev.changedTouches[0].pageX,
|
||
clientY: ev.changedTouches[0].pageY,
|
||
isTrusted: ev.isTrusted
|
||
});
|
||
ev.preventDefault();
|
||
return;
|
||
}
|
||
if ( distance < 64 ) { return; }
|
||
var angleUpperBound = Math.PI * 0.25 * 0.5,
|
||
swipeRight = angle < angleUpperBound;
|
||
if ( swipeRight === false && angle < Math.PI - angleUpperBound ) {
|
||
return;
|
||
}
|
||
ev.preventDefault();
|
||
// Swipe left.
|
||
if ( swipeRight === false ) {
|
||
if ( pickerBody.classList.contains('paused') ) {
|
||
dialog.classList.remove('hide');
|
||
dialog.classList.add('show');
|
||
}
|
||
return;
|
||
}
|
||
// Swipe right.
|
||
if (
|
||
pickerBody.classList.contains('paused') &&
|
||
dialog.classList.contains('show')
|
||
) {
|
||
dialog.classList.remove('show');
|
||
dialog.classList.add('hide');
|
||
return;
|
||
}
|
||
stopPicker();
|
||
};
|
||
})();
|
||
|
||
/******************************************************************************/
|
||
|
||
const onSvgClicked = function(ev) {
|
||
if ( ev.isTrusted === false ) { return; }
|
||
|
||
// If zap mode, highlight element under mouse, this makes the zapper usable
|
||
// on touch screens.
|
||
if ( pickerBody.classList.contains('zap') ) {
|
||
var elem = targetElements.lenght !== 0 && targetElements[0];
|
||
if ( !elem || ev.target !== svgIslands ) {
|
||
elem = elementFromPoint(ev.clientX, ev.clientY);
|
||
if ( elem !== null ) {
|
||
highlightElements([elem]);
|
||
return;
|
||
}
|
||
}
|
||
zap();
|
||
if ( !ev.shiftKey ) {
|
||
stopPicker();
|
||
}
|
||
return;
|
||
}
|
||
// https://github.com/chrisaljoudi/uBlock/issues/810#issuecomment-74600694
|
||
// Unpause picker if:
|
||
// - click outside dialog AND
|
||
// - not in preview mode
|
||
if ( pickerBody.classList.contains('paused') ) {
|
||
if ( filterToDOMInterface.previewing() === false ) {
|
||
unpausePicker();
|
||
}
|
||
return;
|
||
}
|
||
if ( filtersFrom(ev.clientX, ev.clientY) === 0 ) {
|
||
return;
|
||
}
|
||
showDialog({
|
||
show: ev.type === 'touch',
|
||
modifier: ev.ctrlKey
|
||
});
|
||
};
|
||
|
||
/******************************************************************************/
|
||
|
||
const svgListening = function(on) {
|
||
var action = (on ? 'add' : 'remove') + 'EventListener';
|
||
svgRoot[action]('mousemove', onSvgHovered, { passive: true });
|
||
};
|
||
|
||
/******************************************************************************/
|
||
|
||
const onKeyPressed = function(ev) {
|
||
// Delete
|
||
if ( ev.key === 'Delete' && pickerBody.classList.contains('zap') ) {
|
||
ev.stopPropagation();
|
||
ev.preventDefault();
|
||
zap();
|
||
return;
|
||
}
|
||
// Esc
|
||
if ( ev.key === 'Escape' || ev.which === 27 ) {
|
||
ev.stopPropagation();
|
||
ev.preventDefault();
|
||
filterToDOMInterface.preview(false);
|
||
stopPicker();
|
||
return;
|
||
}
|
||
};
|
||
|
||
/******************************************************************************/
|
||
|
||
// https://github.com/chrisaljoudi/uBlock/issues/190
|
||
// May need to dynamically adjust the height of the overlay + new position
|
||
// of highlighted elements.
|
||
|
||
const onScrolled = function() {
|
||
highlightElements(targetElements, true);
|
||
};
|
||
|
||
/******************************************************************************/
|
||
|
||
const pausePicker = function() {
|
||
pickerBody.classList.add('paused');
|
||
svgListening(false);
|
||
};
|
||
|
||
/******************************************************************************/
|
||
|
||
const unpausePicker = function() {
|
||
filterToDOMInterface.preview(false);
|
||
pickerBody.classList.remove('paused');
|
||
svgListening(true);
|
||
};
|
||
|
||
/******************************************************************************/
|
||
|
||
// Let's have the element picker code flushed from memory when no longer
|
||
// in use: to ensure this, release all local references.
|
||
|
||
const stopPicker = function() {
|
||
vAPI.shutdown.remove(stopPicker);
|
||
|
||
targetElements = [];
|
||
candidateElements = [];
|
||
bestCandidateFilter = null;
|
||
|
||
if ( pickerRoot === null ) { return; }
|
||
|
||
// https://github.com/gorhill/uBlock/issues/2060
|
||
if ( vAPI.domFilterer instanceof Object ) {
|
||
vAPI.userStylesheet.remove(pickerCSS1);
|
||
vAPI.userStylesheet.remove(pickerCSS2);
|
||
vAPI.userStylesheet.apply();
|
||
}
|
||
vAPI.domFilterer.unexcludeNode(pickerRoot);
|
||
|
||
window.removeEventListener('scroll', onScrolled, true);
|
||
pickerRoot.contentWindow.removeEventListener('keydown', onKeyPressed, true);
|
||
taCandidate.removeEventListener('input', onCandidateChanged);
|
||
dialog.removeEventListener('click', onDialogClicked);
|
||
svgListening(false);
|
||
svgRoot.removeEventListener('click', onSvgClicked);
|
||
svgRoot.removeEventListener('touchstart', onSvgTouchStartStop);
|
||
svgRoot.removeEventListener('touchend', onSvgTouchStartStop);
|
||
pickerRoot.parentNode.removeChild(pickerRoot);
|
||
pickerRoot.removeEventListener('load', stopPicker);
|
||
pickerRoot =
|
||
pickerBody =
|
||
dialog =
|
||
svgRoot = svgOcean = svgIslands =
|
||
taCandidate = null;
|
||
|
||
window.focus();
|
||
};
|
||
|
||
/******************************************************************************/
|
||
|
||
const startPicker = function(details) {
|
||
pickerRoot.addEventListener('load', stopPicker);
|
||
|
||
const frameDoc = pickerRoot.contentDocument;
|
||
const parsedDom = (new DOMParser()).parseFromString(
|
||
details.frameContent,
|
||
'text/html'
|
||
);
|
||
|
||
// Provide an id users can use as anchor to personalize uBO's element
|
||
// picker style properties.
|
||
parsedDom.documentElement.id = 'ublock0-epicker';
|
||
|
||
// https://github.com/gorhill/uBlock/issues/2240
|
||
// https://github.com/uBlockOrigin/uBlock-issues/issues/170
|
||
// Remove the already declared inline style tag: we will create a new
|
||
// one based on the removed one, and replace the old one.
|
||
let style = parsedDom.querySelector('style');
|
||
const styleText = style.textContent;
|
||
style.parentNode.removeChild(style);
|
||
style = frameDoc.createElement('style');
|
||
style.textContent = styleText;
|
||
parsedDom.head.appendChild(style);
|
||
|
||
frameDoc.replaceChild(
|
||
frameDoc.adoptNode(parsedDom.documentElement),
|
||
frameDoc.documentElement
|
||
);
|
||
|
||
pickerBody = frameDoc.body;
|
||
pickerBody.setAttribute('lang', navigator.language);
|
||
pickerBody.classList.toggle('zap', details.zap === true);
|
||
|
||
dialog = pickerBody.querySelector('aside');
|
||
dialog.addEventListener('click', onDialogClicked);
|
||
|
||
taCandidate = dialog.querySelector('textarea');
|
||
taCandidate.addEventListener('input', onCandidateChanged);
|
||
|
||
svgRoot = pickerBody.querySelector('svg');
|
||
svgOcean = svgRoot.firstChild;
|
||
svgIslands = svgRoot.lastChild;
|
||
svgRoot.addEventListener('click', onSvgClicked);
|
||
svgRoot.addEventListener('touchstart', onSvgTouchStartStop);
|
||
svgRoot.addEventListener('touchend', onSvgTouchStartStop);
|
||
svgListening(true);
|
||
|
||
window.addEventListener('scroll', onScrolled, true);
|
||
pickerRoot.contentWindow.addEventListener('keydown', onKeyPressed, true);
|
||
pickerRoot.contentWindow.focus();
|
||
|
||
// Restore net filter union data if it originate from the same URL.
|
||
const eprom = details.eprom || null;
|
||
if ( eprom !== null && eprom.lastNetFilterSession === lastNetFilterSession ) {
|
||
lastNetFilterHostname = eprom.lastNetFilterHostname || '';
|
||
lastNetFilterUnion = eprom.lastNetFilterUnion || '';
|
||
}
|
||
|
||
// Auto-select a specific target, if any, and if possible
|
||
|
||
highlightElements([], true);
|
||
|
||
// Try using mouse position
|
||
if ( details.clientX !== -1 ) {
|
||
if ( filtersFrom(details.clientX, details.clientY) !== 0 ) {
|
||
showDialog();
|
||
return;
|
||
}
|
||
}
|
||
|
||
// No mouse position available, use suggested target
|
||
const target = details.target || '';
|
||
const pos = target.indexOf('\t');
|
||
if ( pos === -1 ) { return; }
|
||
|
||
const srcAttrMap = {
|
||
'a': 'href',
|
||
'audio': 'src',
|
||
'embed': 'src',
|
||
'iframe': 'src',
|
||
'img': 'src',
|
||
'video': 'src',
|
||
};
|
||
const tagName = target.slice(0, pos);
|
||
const url = target.slice(pos + 1);
|
||
const attr = srcAttrMap[tagName];
|
||
if ( attr === undefined ) { return; }
|
||
const elems = document.getElementsByTagName(tagName);
|
||
for ( const elem of elems ) {
|
||
if ( elem === pickerRoot ) { continue; }
|
||
const src = elem[attr];
|
||
if ( typeof src !== 'string' ) { continue; }
|
||
if (
|
||
(src !== url) &&
|
||
(src !== '' || url !== 'about:blank')
|
||
) {
|
||
continue;
|
||
}
|
||
elem.scrollIntoView({
|
||
behavior: 'smooth',
|
||
block: 'start'
|
||
});
|
||
filtersFrom(elem);
|
||
showDialog({ modifier: true });
|
||
return;
|
||
}
|
||
|
||
// A target was specified, but it wasn't found: abort.
|
||
stopPicker();
|
||
};
|
||
|
||
/******************************************************************************/
|
||
|
||
const bootstrapPicker = function() {
|
||
pickerRoot.removeEventListener('load', bootstrapPicker);
|
||
vAPI.shutdown.add(stopPicker);
|
||
vAPI.messaging.send(
|
||
'elementPicker',
|
||
{ what: 'elementPickerArguments' },
|
||
startPicker
|
||
);
|
||
};
|
||
|
||
/******************************************************************************/
|
||
|
||
pickerRoot = document.createElement('iframe');
|
||
pickerRoot.id = vAPI.sessionId;
|
||
|
||
const pickerCSSStyle = [
|
||
'background: transparent',
|
||
'border: 0',
|
||
'border-radius: 0',
|
||
'box-shadow: none',
|
||
'display: block',
|
||
'height: 100%',
|
||
'left: 0',
|
||
'margin: 0',
|
||
'max-height: none',
|
||
'max-width: none',
|
||
'opacity: 1',
|
||
'outline: 0',
|
||
'padding: 0',
|
||
'position: fixed',
|
||
'top: 0',
|
||
'visibility: visible',
|
||
'width: 100%',
|
||
'z-index: 2147483647',
|
||
''
|
||
].join(' !important;');
|
||
pickerRoot.style.cssText = pickerCSSStyle;
|
||
|
||
// https://github.com/uBlockOrigin/uBlock-issues/issues/393
|
||
// This needs to be injected as an inline style, *never* as a user styles,
|
||
// hence why it's not added above as part of the pickerCSSStyle
|
||
// properties.
|
||
pickerRoot.style.setProperty('pointer-events', 'auto', 'important');
|
||
|
||
const pickerCSS1 = [
|
||
`#${pickerRoot.id} {`,
|
||
pickerCSSStyle,
|
||
'}'
|
||
].join('\n');
|
||
const pickerCSS2 = [
|
||
`[${pickerRoot.id}-clickblind] {`,
|
||
'pointer-events: none !important;',
|
||
'}'
|
||
].join('\n');
|
||
|
||
// https://github.com/gorhill/uBlock/issues/1529
|
||
// In addition to inline styles, harden the element picker styles by using
|
||
// dedicated CSS rules.
|
||
vAPI.userStylesheet.add(pickerCSS1);
|
||
vAPI.userStylesheet.add(pickerCSS2);
|
||
vAPI.userStylesheet.apply();
|
||
|
||
// https://github.com/gorhill/uBlock/issues/2060
|
||
vAPI.domFilterer.excludeNode(pickerRoot);
|
||
|
||
pickerRoot.addEventListener('load', bootstrapPicker);
|
||
document.documentElement.appendChild(pickerRoot);
|
||
|
||
/******************************************************************************/
|
||
|
||
})();
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
/*******************************************************************************
|
||
|
||
DO NOT:
|
||
- Remove the following code
|
||
- Add code beyond the following code
|
||
Reason:
|
||
- https://github.com/gorhill/uBlock/pull/3721
|
||
- uBO never uses the return value from injected content scripts
|
||
|
||
**/
|
||
|
||
void 0;
|