mirror of
https://github.com/gorhill/uMatrix.git
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116 lines
3.4 KiB
JavaScript
116 lines
3.4 KiB
JavaScript
/*******************************************************************************
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uMatrix - a browser extension to block requests.
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Copyright (C) 2018 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 messaging = vAPI.messaging;
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var cachedData = '';
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var rawSettingsInput = uDom.nodeFromId('rawSettings');
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/******************************************************************************/
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var hashFromRawSettings = function(raw) {
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return raw.trim().replace(/\s+/g, '|');
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};
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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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var rawSettingsChanged = (function () {
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var timer = null;
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var handler = function() {
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timer = null;
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var changed =
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hashFromRawSettings(rawSettingsInput.value) !== cachedData;
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uDom.nodeFromId('rawSettingsApply').disabled = !changed;
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};
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return function() {
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if ( timer !== null ) {
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clearTimeout(timer);
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}
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timer = vAPI.setTimeout(handler, 100);
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};
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})();
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/******************************************************************************/
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function renderRawSettings() {
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var onRead = function(raw) {
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cachedData = hashFromRawSettings(raw);
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var pretty = [],
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whitespaces = ' ',
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lines = raw.split('\n'),
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max = 0,
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pos,
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i, n = lines.length;
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for ( i = 0; i < n; i++ ) {
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pos = lines[i].indexOf(' ');
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if ( pos > max ) {
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max = pos;
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}
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}
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for ( i = 0; i < n; i++ ) {
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pos = lines[i].indexOf(' ');
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pretty.push(whitespaces.slice(0, max - pos) + lines[i]);
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}
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rawSettingsInput.value = pretty.join('\n') + '\n';
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rawSettingsChanged();
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rawSettingsInput.focus();
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};
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messaging.send('dashboard', { what: 'readRawSettings' }, onRead);
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}
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/******************************************************************************/
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var applyChanges = function() {
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messaging.send(
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'dashboard',
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{
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what: 'writeRawSettings',
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content: rawSettingsInput.value
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},
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renderRawSettings
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);
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};
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/******************************************************************************/
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// Handle user interaction
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uDom('#rawSettings').on('input', rawSettingsChanged);
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uDom('#rawSettingsApply').on('click', applyChanges);
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renderRawSettings();
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/******************************************************************************/
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})();
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