mirror of
https://github.com/gorhill/uBlock.git
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0886f7e886
.jshintrc's otion-set is a personal choice, merely a suggestion. Beside that, it includes some common globals for specific browsers, so there's no need to set the globals in every .js file. In order to force strict coding, "use strict" directive was added into every .js file.
145 lines
4.5 KiB
JavaScript
145 lines
4.5 KiB
JavaScript
/*******************************************************************************
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µBlock - a Chromium browser extension to block requests.
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Copyright (C) 2014 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 vAPI, 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 cachedUserFilters = '';
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/******************************************************************************/
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var messager = vAPI.messaging.channel('1p-filters.js');
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/******************************************************************************/
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// This is to give a visual hint that the content of user blacklist has changed.
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function userFiltersChanged() {
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uDom('#userFiltersApply').prop(
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'disabled',
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uDom('#userFilters').val().trim() === cachedUserFilters
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);
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}
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/******************************************************************************/
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function renderUserFilters() {
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var onRead = function(details) {
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if ( details.error ) {
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return;
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}
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cachedUserFilters = details.content.trim();
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uDom('#userFilters').val(details.content);
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};
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messager.send({ what: 'readUserFilters' }, onRead);
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}
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/******************************************************************************/
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function allFiltersApplyHandler() {
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messager.send({ what: 'reloadAllFilters' });
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uDom('#userFiltersApply').prop('disabled', true );
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}
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/******************************************************************************/
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function handleImportFilePicker() {
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var fileReaderOnLoadHandler = function() {
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var textarea = uDom('#userFilters');
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textarea.val([textarea.val(), this.result].join('\n').trim());
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userFiltersChanged();
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};
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var file = this.files[0];
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if ( file === undefined || file.name === '' ) {
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return;
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}
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if ( file.type.indexOf('text') !== 0 ) {
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return;
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}
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var fr = new FileReader();
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fr.onload = fileReaderOnLoadHandler;
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fr.readAsText(file);
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}
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/******************************************************************************/
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var startImportFilePicker = function() {
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var input = document.getElementById('importFilePicker');
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// Reset to empty string, this will ensure an change event is properly
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// triggered if the user pick a file, even if it is the same as the last
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// one picked.
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input.value = '';
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input.click();
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};
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/******************************************************************************/
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function exportUserFiltersToFile() {
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chrome.downloads.download({
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'url': 'data:text/plain,' + encodeURIComponent(uDom('#userFilters').val()),
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'filename': 'my-ublock-filters.txt',
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'saveAs': true
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});
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}
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/******************************************************************************/
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function userFiltersApplyHandler() {
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var onWritten = function(details) {
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if ( details.error ) {
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return;
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}
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cachedUserFilters = details.content.trim();
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userFiltersChanged();
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allFiltersApplyHandler();
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};
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var request = {
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what: 'writeUserFilters',
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content: uDom('#userFilters').val()
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};
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messager.send(request, onWritten);
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}
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/******************************************************************************/
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uDom.onLoad(function() {
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// Handle user interaction
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uDom('#importUserFiltersFromFile').on('click', startImportFilePicker);
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uDom('#importFilePicker').on('change', handleImportFilePicker);
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uDom('#exportUserFiltersToFile').on('click', exportUserFiltersToFile);
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uDom('#userFilters').on('input', userFiltersChanged);
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uDom('#userFiltersApply').on('click', userFiltersApplyHandler);
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renderUserFilters();
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});
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/******************************************************************************/
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// https://www.youtube.com/watch?v=UNilsLf6eW4
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})();
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