mirror of
https://github.com/gorhill/uBlock.git
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b8dc685d01
Using Google bigquery I found that your code was comparing the result of `typeof` with a variable named `undefined`. As typeof returns a string it should compare to a string with the content `'undefined'`
783 lines
23 KiB
JavaScript
783 lines
23 KiB
JavaScript
/*******************************************************************************
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uBlock Origin - a browser extension to block requests.
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Copyright (C) 2015-2016 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 uDom */
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'use strict';
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/******************************************************************************/
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(function() {
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/******************************************************************************/
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var showdomButton = uDom.nodeFromId('showdom');
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// Don't bother if the browser is not modern enough.
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if ( typeof Map === 'undefined' || Map.polyfill || typeof WeakMap === 'undefined' ) {
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showdomButton.classList.add('disabled');
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return;
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}
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/******************************************************************************/
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var logger = self.logger;
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var messaging = vAPI.messaging;
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var inspectedTabId = '';
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var inspectedURL = '';
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var inspectedHostname = '';
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var pollTimer = null;
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var fingerprint = null;
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var inspector = uDom.nodeFromId('domInspector');
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var domTree = uDom.nodeFromId('domTree');
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var tabSelector = uDom.nodeFromId('pageSelector');
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var uidGenerator = 1;
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var filterToIdMap = new Map();
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/******************************************************************************/
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var nodeFromDomEntry = function(entry) {
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var node, value;
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var li = document.createElement('li');
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li.setAttribute('id', entry.nid);
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// expander/collapser
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node = document.createElement('span');
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li.appendChild(node);
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// selector
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node = document.createElement('code');
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node.textContent = entry.sel;
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li.appendChild(node);
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// descendant count
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value = entry.cnt || 0;
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node = document.createElement('span');
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node.textContent = value !== 0 ? value.toLocaleString() : '';
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node.setAttribute('data-cnt', value);
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li.appendChild(node);
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// cosmetic filter
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if ( entry.filter === undefined ) {
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return li;
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}
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node = document.createElement('code');
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node.classList.add('filter');
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value = filterToIdMap.get(entry.filter);
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if ( value === undefined ) {
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value = uidGenerator.toString();
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filterToIdMap.set(entry.filter, value);
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uidGenerator += 1;
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}
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node.setAttribute('data-filter-id', value);
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node.textContent = entry.filter;
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li.appendChild(node);
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li.classList.add('isCosmeticHide');
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return li;
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};
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/******************************************************************************/
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var appendListItem = function(ul, li) {
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ul.appendChild(li);
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// Ancestor nodes of a node which is affected by a cosmetic filter will
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// be marked as "containing cosmetic filters", for user convenience.
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if ( li.classList.contains('isCosmeticHide') === false ) {
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return;
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}
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for (;;) {
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li = li.parentElement.parentElement;
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if ( li === null ) {
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break;
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}
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li.classList.add('hasCosmeticHide');
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}
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};
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/******************************************************************************/
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var renderDOMFull = function(response) {
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var domTreeParent = domTree.parentElement;
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var ul = domTreeParent.removeChild(domTree);
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logger.removeAllChildren(domTree);
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filterToIdMap.clear();
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var lvl = 0;
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var entries = response.layout;
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var n = entries.length;
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var li, entry;
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for ( var i = 0; i < n; i++ ) {
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entry = entries[i];
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if ( entry.lvl === lvl ) {
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li = nodeFromDomEntry(entry);
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appendListItem(ul, li);
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continue;
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}
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if ( entry.lvl > lvl ) {
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ul = document.createElement('ul');
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li.appendChild(ul);
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li.classList.add('branch');
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li = nodeFromDomEntry(entry);
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appendListItem(ul, li);
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lvl = entry.lvl;
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continue;
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}
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// entry.lvl < lvl
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while ( entry.lvl < lvl ) {
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ul = li.parentNode;
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li = ul.parentNode;
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ul = li.parentNode;
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lvl -= 1;
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}
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li = nodeFromDomEntry(entry);
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appendListItem(ul, li);
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}
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while ( ul.parentNode !== null ) {
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ul = ul.parentNode;
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}
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ul.firstElementChild.classList.add('show');
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domTreeParent.appendChild(domTree);
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};
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// https://www.youtube.com/watch?v=IDGNA83mxDo
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/******************************************************************************/
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var patchIncremental = function(from, delta) {
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var span, cnt;
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var li = from.parentElement.parentElement;
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var patchCosmeticHide = delta >= 0 &&
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from.classList.contains('isCosmeticHide') &&
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li.classList.contains('hasCosmeticHide') === false;
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// Include descendants count when removing a node
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if ( delta < 0 ) {
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delta -= countFromNode(from);
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}
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for ( ; li.localName === 'li'; li = li.parentElement.parentElement ) {
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span = li.children[2];
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if ( delta !== 0 ) {
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cnt = countFromNode(li) + delta;
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span.textContent = cnt !== 0 ? cnt.toLocaleString() : '';
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span.setAttribute('data-cnt', cnt);
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}
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if ( patchCosmeticHide ) {
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li.classList.add('hasCosmeticHide');
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}
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}
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};
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/******************************************************************************/
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var renderDOMIncremental = function(response) {
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// Process each journal entry:
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// 1 = node added
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// -1 = node removed
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var journal = response.journal;
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var nodes = response.nodes;
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var entry, previous, li, ul;
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for ( var i = 0, n = journal.length; i < n; i++ ) {
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entry = journal[i];
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// Remove node
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if ( entry.what === -1 ) {
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li = document.getElementById(entry.nid);
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if ( li === null ) {
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continue;
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}
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patchIncremental(li, -1);
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li.parentNode.removeChild(li);
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continue;
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}
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// Modify node
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if ( entry.what === 0 ) {
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// TODO: update selector/filter
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continue;
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}
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// Add node as sibling
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if ( entry.what === 1 && entry.l ) {
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previous = document.getElementById(entry.l);
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// This should not happen
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if ( previous === null ) {
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// throw new Error('No left sibling!?');
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continue;
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}
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ul = previous.parentElement;
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li = nodeFromDomEntry(nodes[entry.nid]);
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ul.insertBefore(li, previous.nextElementSibling);
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patchIncremental(li, 1);
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continue;
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}
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// Add node as child
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if ( entry.what === 1 && entry.u ) {
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li = document.getElementById(entry.u);
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// This should not happen
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if ( li === null ) {
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// throw new Error('No parent!?');
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continue;
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}
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ul = li.querySelector('ul');
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if ( ul === null ) {
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ul = document.createElement('ul');
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li.appendChild(ul);
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li.classList.add('branch');
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}
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li = nodeFromDomEntry(nodes[entry.nid]);
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ul.appendChild(li);
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patchIncremental(li, 1);
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continue;
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}
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}
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};
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// https://www.youtube.com/watch?v=6u2KPtJB9h8
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/******************************************************************************/
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var countFromNode = function(li) {
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var span = li.children[2];
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var cnt = parseInt(span.getAttribute('data-cnt'), 10);
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return isNaN(cnt) ? 0 : cnt;
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};
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/******************************************************************************/
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var selectorFromNode = function(node) {
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var selector = '';
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var code;
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while ( node !== null ) {
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if ( node.localName === 'li' ) {
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code = node.querySelector('code');
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if ( code !== null ) {
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selector = code.textContent + ' > ' + selector;
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if ( selector.indexOf('#') !== -1 ) {
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break;
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}
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}
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}
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node = node.parentElement;
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}
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return selector.slice(0, -3);
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};
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/******************************************************************************/
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var selectorFromFilter = function(node) {
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while ( node !== null ) {
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if ( node.localName === 'li' ) {
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var code = node.querySelector('code:nth-of-type(2)');
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if ( code !== null ) {
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return code.textContent;
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}
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}
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node = node.parentElement;
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}
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return '';
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};
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/******************************************************************************/
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var nidFromNode = function(node) {
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var li = node;
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while ( li !== null ) {
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if ( li.localName === 'li' ) {
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return li.id || '';
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}
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li = li.parentElement;
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}
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return '';
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};
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/******************************************************************************/
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var startDialog = (function() {
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var dialog = uDom.nodeFromId('cosmeticFilteringDialog');
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var textarea = dialog.querySelector('textarea');
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var hideSelectors = [];
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var unhideSelectors = [];
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var inputTimer = null;
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var onInputChanged = (function() {
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var parse = function() {
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inputTimer = null;
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hideSelectors = [];
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unhideSelectors = [];
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var line, matches;
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var re = /^([^#]*)(#@?#)(.+)$/;
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var lines = textarea.value.split(/\s*\n\s*/);
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for ( var i = 0; i < lines.length; i++ ) {
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line = lines[i].trim();
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if ( line === '' || line.charAt(0) === '!' ) {
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continue;
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}
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matches = re.exec(line);
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if ( matches === null || matches.length !== 4 ) {
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continue;
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}
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if ( inspectedHostname.lastIndexOf(matches[1]) === -1 ) {
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continue;
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}
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if ( matches[2] === '##' ) {
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hideSelectors.push(matches[3]);
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} else {
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unhideSelectors.push(matches[3]);
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}
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}
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showCommitted();
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};
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return function parseAsync() {
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if ( inputTimer === null ) {
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inputTimer = vAPI.setTimeout(parse, 743);
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}
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};
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})();
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var onClick = function(ev) {
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var target = ev.target;
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// click outside the dialog proper
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if ( target.classList.contains('modalDialog') ) {
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return stop();
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}
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ev.stopPropagation();
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if ( target.id === 'createCosmeticFilters' ) {
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messaging.send('loggerUI', { what: 'createUserFilter', filters: textarea.value });
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// Force a reload for the new cosmetic filter(s) to take effect
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messaging.send('loggerUI', { what: 'reloadTab', tabId: inspectedTabId });
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return stop();
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}
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};
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var onCooked = function(entries) {
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if ( Array.isArray(entries) === false ) {
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return;
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}
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hideSelectors = entries;
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var taValue = [], i, node;
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var d = new Date();
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taValue.push('! ' + d.toLocaleString() + ' ' + inspectedURL);
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for ( i = 0; i < entries.length; i++ ) {
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taValue.push(inspectedHostname + '##' + entries[i]);
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}
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var ids = new Set(), id;
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var nodes = domTree.querySelectorAll('code.filter.off');
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for ( i = 0; i < nodes.length; i++ ) {
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node = nodes[i];
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id = node.getAttribute('data-filter-id');
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if ( ids.has(id) ) {
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continue;
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}
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ids.add(id);
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unhideSelectors.push(node.textContent);
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taValue.push(inspectedHostname + '#@#' + node.textContent);
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}
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textarea.value = taValue.join('\n');
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document.body.appendChild(dialog);
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dialog.addEventListener('click', onClick, true);
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showCommitted();
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};
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var showCommitted = function() {
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messaging.sendTo(
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'loggerUI',
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{
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what: 'showCommitted',
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hide: hideSelectors.join(',\n'),
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unhide: unhideSelectors.join(',\n')
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},
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inspectedTabId,
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'domInspector'
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);
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};
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var showInteractive = function() {
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messaging.sendTo(
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'loggerUI',
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{
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what: 'showInteractive',
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hide: hideSelectors.join(',\n'),
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unhide: unhideSelectors.join(',\n')
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},
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inspectedTabId,
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'domInspector'
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);
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};
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var start = function() {
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textarea.addEventListener('input', onInputChanged);
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var node, entries = [];
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var nodes = domTree.querySelectorAll('code.off');
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for ( var i = 0; i < nodes.length; i++ ) {
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node = nodes[i];
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if ( node.classList.contains('filter') === false ) {
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entries.push({
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nid: nidFromNode(node),
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selector: selectorFromNode(node)
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});
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}
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}
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messaging.sendTo(
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'loggerUI',
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{ what: 'cookFilters', entries: entries },
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inspectedTabId,
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'domInspector',
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onCooked
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);
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};
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var stop = function() {
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if ( inputTimer !== null ) {
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clearTimeout(inputTimer);
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inputTimer = null;
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}
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showInteractive();
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hideSelectors = [];
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unhideSelectors = [];
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textarea.removeEventListener('input', onInputChanged);
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dialog.removeEventListener('click', onClick, true);
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document.body.removeChild(dialog);
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};
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return start;
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})();
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/******************************************************************************/
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var onClick = function(ev) {
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ev.stopPropagation();
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if ( inspectedTabId === '' ) {
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return;
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}
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var target = ev.target;
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var parent = target.parentElement;
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// Expand/collapse branch
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if (
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target.localName === 'span' &&
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parent instanceof HTMLLIElement &&
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parent.classList.contains('branch') &&
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target === parent.firstElementChild
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) {
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target.parentElement.classList.toggle('show');
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return;
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}
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// Not a node or filter
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if ( target.localName !== 'code' ) {
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return;
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}
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// Toggle cosmetic filter
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if ( target.classList.contains('filter') ) {
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messaging.sendTo(
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'loggerUI',
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{
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what: 'toggleFilter',
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original: false,
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target: target.classList.toggle('off'),
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selector: selectorFromNode(target),
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filter: selectorFromFilter(target),
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nid: ''
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},
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inspectedTabId,
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'domInspector'
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);
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uDom('[data-filter-id="' + target.getAttribute('data-filter-id') + '"]', inspector).toggleClass(
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'off',
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target.classList.contains('off')
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);
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}
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// Toggle node
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else {
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messaging.sendTo(
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'loggerUI',
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{
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what: 'toggleNodes',
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original: true,
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target: target.classList.toggle('off') === false,
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selector: selectorFromNode(target),
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nid: nidFromNode(target)
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},
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inspectedTabId,
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'domInspector'
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);
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}
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var cantCreate = domTree.querySelector('.off') === null;
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inspector.querySelector('.permatoolbar .revert').classList.toggle('disabled', cantCreate);
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inspector.querySelector('.permatoolbar .commit').classList.toggle('disabled', cantCreate);
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};
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/******************************************************************************/
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|
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var onMouseOver = (function() {
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var mouseoverTarget = null;
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var mouseoverTimer = null;
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|
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var timerHandler = function() {
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mouseoverTimer = null;
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messaging.sendTo(
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'loggerUI',
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{
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what: 'highlightOne',
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selector: selectorFromNode(mouseoverTarget),
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nid: nidFromNode(mouseoverTarget),
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scrollTo: true
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},
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inspectedTabId,
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'domInspector'
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);
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};
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return function(ev) {
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if ( inspectedTabId === '' ) {
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return;
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}
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// Convenience: skip real-time highlighting if shift key is pressed.
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if ( ev.shiftKey ) {
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return;
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}
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// Find closest `li`
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var target = ev.target;
|
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while ( target !== null ) {
|
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if ( target.localName === 'li' ) {
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break;
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}
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target = target.parentElement;
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}
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if ( target === mouseoverTarget ) {
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return;
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}
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mouseoverTarget = target;
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if ( mouseoverTimer === null ) {
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mouseoverTimer = vAPI.setTimeout(timerHandler, 50);
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}
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};
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})();
|
|
|
|
/******************************************************************************/
|
|
|
|
var currentTabId = function() {
|
|
if ( showdomButton.classList.contains('active') === false ) {
|
|
return '';
|
|
}
|
|
var tabId = logger.tabIdFromClassName(tabSelector.value) || '';
|
|
return tabId !== 'bts' ? tabId : '';
|
|
};
|
|
|
|
/******************************************************************************/
|
|
|
|
var fetchDOMAsync = (function() {
|
|
var onFetched = function(response) {
|
|
if ( !response || currentTabId() !== inspectedTabId ) {
|
|
shutdownInspector();
|
|
injectInspectorAsync(250);
|
|
return;
|
|
}
|
|
|
|
switch ( response.status ) {
|
|
case 'full':
|
|
renderDOMFull(response);
|
|
fingerprint = response.fingerprint;
|
|
inspectedURL = response.url;
|
|
inspectedHostname = response.hostname;
|
|
break;
|
|
|
|
case 'incremental':
|
|
renderDOMIncremental(response);
|
|
break;
|
|
|
|
case 'nochange':
|
|
case 'busy':
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
fetchDOMAsync();
|
|
};
|
|
|
|
var onTimeout = function() {
|
|
pollTimer = null;
|
|
messaging.sendTo(
|
|
'loggerUI',
|
|
{
|
|
what: 'domLayout',
|
|
fingerprint: fingerprint
|
|
},
|
|
inspectedTabId,
|
|
'domInspector',
|
|
onFetched
|
|
);
|
|
};
|
|
|
|
// Poll for DOM layout data every ~2 seconds at most
|
|
return function(delay) {
|
|
if ( pollTimer === null ) {
|
|
pollTimer = vAPI.setTimeout(onTimeout, delay || 2003);
|
|
}
|
|
};
|
|
})();
|
|
|
|
/******************************************************************************/
|
|
|
|
var injectInspector = function() {
|
|
var tabId = currentTabId();
|
|
// No valid tab, go back
|
|
if ( tabId === '' ) {
|
|
injectInspectorAsync();
|
|
return;
|
|
}
|
|
inspectedTabId = tabId;
|
|
fingerprint = null;
|
|
messaging.send(
|
|
'loggerUI',
|
|
{
|
|
what: 'scriptlet',
|
|
tabId: tabId,
|
|
scriptlet: 'dom-inspector'
|
|
}
|
|
);
|
|
fetchDOMAsync(250);
|
|
};
|
|
|
|
/******************************************************************************/
|
|
|
|
var injectInspectorAsync = function(delay) {
|
|
if ( pollTimer !== null ) {
|
|
return;
|
|
}
|
|
if ( showdomButton.classList.contains('active') === false ) {
|
|
return;
|
|
}
|
|
pollTimer = vAPI.setTimeout(function() {
|
|
pollTimer = null;
|
|
injectInspector();
|
|
}, delay || 1001);
|
|
};
|
|
|
|
/******************************************************************************/
|
|
|
|
var shutdownInspector = function() {
|
|
if ( inspectedTabId !== '' ) {
|
|
messaging.sendTo(
|
|
'loggerUI',
|
|
{ what: 'shutdown' },
|
|
inspectedTabId,
|
|
'domInspector'
|
|
);
|
|
}
|
|
logger.removeAllChildren(domTree);
|
|
if ( pollTimer !== null ) {
|
|
clearTimeout(pollTimer);
|
|
pollTimer = null;
|
|
}
|
|
inspectedTabId = '';
|
|
};
|
|
|
|
/******************************************************************************/
|
|
|
|
var onTabIdChanged = function() {
|
|
if ( inspectedTabId !== currentTabId() ) {
|
|
shutdownInspector();
|
|
injectInspectorAsync(250);
|
|
}
|
|
};
|
|
|
|
/******************************************************************************/
|
|
|
|
var toggleHighlightMode = function() {
|
|
messaging.sendTo(
|
|
'loggerUI',
|
|
{
|
|
what: 'highlightMode',
|
|
invert: uDom.nodeFromSelector('#domInspector .permatoolbar .highlightMode').classList.toggle('invert')
|
|
},
|
|
inspectedTabId,
|
|
'domInspector'
|
|
);
|
|
};
|
|
|
|
/******************************************************************************/
|
|
|
|
var revert = function() {
|
|
uDom('#domTree .off').removeClass('off');
|
|
messaging.sendTo(
|
|
'loggerUI',
|
|
{ what: 'resetToggledNodes' },
|
|
inspectedTabId,
|
|
'domInspector'
|
|
);
|
|
inspector.querySelector('.permatoolbar .revert').classList.add('disabled');
|
|
inspector.querySelector('.permatoolbar .commit').classList.add('disabled');
|
|
};
|
|
|
|
/******************************************************************************/
|
|
|
|
var toggleOn = function() {
|
|
window.addEventListener('beforeunload', toggleOff);
|
|
tabSelector.addEventListener('change', onTabIdChanged);
|
|
domTree.addEventListener('click', onClick, true);
|
|
domTree.addEventListener('mouseover', onMouseOver, true);
|
|
uDom.nodeFromSelector('#domInspector .permatoolbar .highlightMode').addEventListener('click', toggleHighlightMode);
|
|
uDom.nodeFromSelector('#domInspector .permatoolbar .revert').addEventListener('click', revert);
|
|
uDom.nodeFromSelector('#domInspector .permatoolbar .commit').addEventListener('click', startDialog);
|
|
injectInspector();
|
|
};
|
|
|
|
/******************************************************************************/
|
|
|
|
var toggleOff = function() {
|
|
shutdownInspector();
|
|
window.removeEventListener('beforeunload', toggleOff);
|
|
tabSelector.removeEventListener('change', onTabIdChanged);
|
|
domTree.removeEventListener('click', onClick, true);
|
|
domTree.removeEventListener('mouseover', onMouseOver, true);
|
|
uDom.nodeFromSelector('#domInspector .permatoolbar .highlightMode').removeEventListener('click', toggleHighlightMode);
|
|
uDom.nodeFromSelector('#domInspector .permatoolbar .revert').removeEventListener('click', revert);
|
|
uDom.nodeFromSelector('#domInspector .permatoolbar .commit').removeEventListener('click', startDialog);
|
|
inspectedTabId = '';
|
|
};
|
|
|
|
/******************************************************************************/
|
|
|
|
var toggle = function() {
|
|
if ( showdomButton.classList.toggle('active') ) {
|
|
toggleOn();
|
|
} else {
|
|
toggleOff();
|
|
}
|
|
};
|
|
|
|
/******************************************************************************/
|
|
|
|
showdomButton.addEventListener('click', toggle);
|
|
|
|
/******************************************************************************/
|
|
|
|
})();
|
|
|
|
|