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mirror of https://github.com/gorhill/uBlock.git synced 2024-11-06 02:42:33 +01:00
uBlock/src/js/advanced-settings.js
2019-04-20 19:10:34 -04:00

135 lines
4.0 KiB
JavaScript

/*******************************************************************************
uBlock Origin - a browser extension to block requests.
Copyright (C) 2016-present Raymond Hill
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://github.com/gorhill/uBlock
*/
/* global CodeMirror, uDom, uBlockDashboard */
'use strict';
/******************************************************************************/
(function() {
// >>>> Start of private namespace
/******************************************************************************/
const messaging = vAPI.messaging;
const noopFunc = function(){};
let beforeHash = '';
const cmEditor = new CodeMirror(
document.getElementById('advancedSettings'),
{
autofocus: true,
lineNumbers: true,
lineWrapping: true,
styleActiveLine: true
}
);
uBlockDashboard.patchCodeMirrorEditor(cmEditor);
/******************************************************************************/
const hashFromAdvancedSettings = function(raw) {
return raw.trim().replace(/\s*[\n\r]+\s*/g, '\n').replace(/[ \t]+/g, ' ');
};
/******************************************************************************/
// This is to give a visual hint that the content of user blacklist has changed.
const advancedSettingsChanged = (function () {
let timer = null;
const handler = ( ) => {
timer = null;
let changed = hashFromAdvancedSettings(cmEditor.getValue()) !== beforeHash;
uDom.nodeFromId('advancedSettingsApply').disabled = !changed;
CodeMirror.commands.save = changed ? applyChanges : noopFunc;
};
return function() {
if ( timer !== null ) { clearTimeout(timer); }
timer = vAPI.setTimeout(handler, 100);
};
})();
cmEditor.on('changes', advancedSettingsChanged);
/******************************************************************************/
const renderAdvancedSettings = function(first) {
const onRead = function(raw) {
beforeHash = hashFromAdvancedSettings(raw);
let pretty = [],
whitespaces = ' ',
lines = raw.split('\n'),
max = 0;
for ( let line of lines ) {
let pos = line.indexOf(' ');
if ( pos > max ) { max = pos; }
}
for ( let line of lines ) {
let pos = line.indexOf(' ');
pretty.push(whitespaces.slice(0, max - pos) + line);
}
cmEditor.setValue(pretty.join('\n') + '\n');
if ( first ) {
cmEditor.clearHistory();
}
advancedSettingsChanged();
cmEditor.focus();
};
messaging.send('dashboard', { what: 'readHiddenSettings' }, onRead);
};
/******************************************************************************/
const applyChanges = function() {
messaging.send(
'dashboard',
{
what: 'writeHiddenSettings',
content: cmEditor.getValue()
},
renderAdvancedSettings
);
};
/******************************************************************************/
uDom.nodeFromId('advancedSettings').addEventListener(
'input',
advancedSettingsChanged
);
uDom.nodeFromId('advancedSettingsApply').addEventListener(
'click',
applyChanges
);
renderAdvancedSettings(true);
/******************************************************************************/
// <<<< End of private namespace
})();