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/*******************************************************************************
ηMatrix - a browser extension to black/white list requests.
Copyright (C) 2018-2019 Raymond Hill
Copyright (C) 2019-2020 Alessio Vanni
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see {http://www.gnu.org/licenses/}.
Home: https://libregit.org/heckyel/ematrix
uMatrix Home: https://github.com/gorhill/uBlock
*/
/* global uDom */
'use strict';
/******************************************************************************/
(function() {
/******************************************************************************/
var messaging = vAPI.messaging;
var cachedData = '';
var rawSettingsInput = uDom.nodeFromId('rawSettings');
/******************************************************************************/
var hashFromRawSettings = function(raw) {
return raw.trim().replace(/\s+/g, '|');
};
/******************************************************************************/
// This is to give a visual hint that the content of user blacklist has changed.
var rawSettingsChanged = (function () {
var timer = null;
var handler = function() {
timer = null;
var changed =
hashFromRawSettings(rawSettingsInput.value) !== cachedData;
uDom.nodeFromId('rawSettingsApply').disabled = !changed;
};
return function() {
if ( timer !== null ) {
clearTimeout(timer);
}
timer = vAPI.setTimeout(handler, 100);
};
})();
/******************************************************************************/
function renderRawSettings() {
var onRead = function(raw) {
cachedData = hashFromRawSettings(raw);
var pretty = [],
whitespaces = ' ',
lines = raw.split('\n'),
max = 0,
pos,
i, n = lines.length;
for ( i = 0; i < n; i++ ) {
pos = lines[i].indexOf(' ');
if ( pos > max ) {
max = pos;
}
}
for ( i = 0; i < n; i++ ) {
pos = lines[i].indexOf(' ');
pretty.push(whitespaces.slice(0, max - pos) + lines[i]);
}
rawSettingsInput.value = pretty.join('\n') + '\n';
rawSettingsChanged();
rawSettingsInput.focus();
};
messaging.send('dashboard', { what: 'readRawSettings' }, onRead);
}
/******************************************************************************/
var applyChanges = function() {
messaging.send(
'dashboard',
{
what: 'writeRawSettings',
content: rawSettingsInput.value
},
renderRawSettings
);
};
/******************************************************************************/
// Handle user interaction
uDom('#rawSettings').on('input', rawSettingsChanged);
uDom('#rawSettingsApply').on('click', applyChanges);
renderRawSettings();
/******************************************************************************/
})();
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