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uBlock/src/js/whitelist.js
Deathamns 0886f7e886 Add .jshintrc, and use the "use strict" directive
.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.
2014-11-09 17:39:17 +01:00

130 lines
4.2 KiB
JavaScript

/*******************************************************************************
µBlock - a Chromium browser extension to block requests.
Copyright (C) 2014 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 vAPI, uDom */
'use strict';
/******************************************************************************/
(function() {
/******************************************************************************/
var messager = vAPI.messaging.channel('whitelist.js');
/******************************************************************************/
var cachedWhitelist = '';
// Could make it more fancy if needed. But speed... It's a compromise.
var reUnwantedChars = /[\x00-\x09\x0b\x0c\x0e-\x1f!"#$'()<>{}|\\^\[\]`~]/;
/******************************************************************************/
var whitelistChanged = function() {
var s = uDom('#whitelist').val().trim();
var bad = reUnwantedChars.test(s);
uDom('#whitelistApply').prop(
'disabled',
s === cachedWhitelist || bad
);
uDom('#whitelist').toggleClass('bad', bad);
};
/******************************************************************************/
var renderWhitelist = function() {
var onRead = function(whitelist) {
cachedWhitelist = whitelist;
uDom('#whitelist').val(cachedWhitelist);
};
messager.send({ what: 'getWhitelist' }, onRead);
};
/******************************************************************************/
var handleImportFilePicker = function() {
var fileReaderOnLoadHandler = function() {
var textarea = uDom('#whitelist');
textarea.val([textarea.val(), this.result].join('\n').trim());
whitelistChanged();
};
var file = this.files[0];
if ( file === undefined || file.name === '' ) {
return;
}
if ( file.type.indexOf('text') !== 0 ) {
return;
}
var fr = new FileReader();
fr.onload = fileReaderOnLoadHandler;
fr.readAsText(file);
};
/******************************************************************************/
var startImportFilePicker = function() {
var input = document.getElementById('importFilePicker');
// Reset to empty string, this will ensure an change event is properly
// triggered if the user pick a file, even if it is the same as the last
// one picked.
input.value = '';
input.click();
};
/******************************************************************************/
var exportWhitelistToFile = function() {
chrome.downloads.download({
'url': 'data:text/plain,' + encodeURIComponent(uDom('#whitelist').val()),
'filename': 'my-ublock-whitelist.txt',
'saveAs': true
});
};
/******************************************************************************/
var whitelistApplyHandler = function() {
cachedWhitelist = uDom('#whitelist').val().trim();
var request = {
what: 'setWhitelist',
whitelist: cachedWhitelist
};
messager.send(request);
whitelistChanged();
};
/******************************************************************************/
uDom.onLoad(function() {
uDom('#importWhitelistFromFile').on('click', startImportFilePicker);
uDom('#importFilePicker').on('change', handleImportFilePicker);
uDom('#exportWhitelistToFile').on('click', exportWhitelistToFile);
uDom('#whitelist').on('input', whitelistChanged);
uDom('#whitelistApply').on('click', whitelistApplyHandler);
renderWhitelist();
});
/******************************************************************************/
})();