OpenTally/html/index.js

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JavaScript
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/* OpenTally: Open-source election vote counting
* Copyright © 20212022 Lee Yingtong Li (RunasSudo)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
function clickAdvancedOptions() {
if (document.getElementById('divAdvancedOptions').style.display === 'none') {
document.getElementById('divAdvancedOptions').style.display = 'grid';
document.getElementById('btnAdvancedOptions').innerHTML = 'Hide advanced options';
} else {
document.getElementById('divAdvancedOptions').style.display = 'none';
document.getElementById('btnAdvancedOptions').innerHTML = 'Show advanced options';
}
}
var tblResult = document.getElementById('result');
var divLogs2 = document.getElementById('resultLogs2');
var olStageComments;
var detailedTransfers = {};
var worker = new Worker('worker.js?v=GITVERSION');
worker.onmessage = function(evt) {
if (evt.data.type === 'init') {
document.getElementById('spanRevNum').innerText = evt.data.version;
document.getElementById('divLoading').style.display = 'none';
document.getElementById('divUI').style.display = 'block';
// Init dropdowns
// Can't compute correct width until #divUI, etc. is display: block
//document.getElementById('divAdvancedOptions').style.display = 'grid';
//for (let elSel of document.querySelectorAll('select')) {
let elSel = document.getElementById('selPreset'); {
var sel = new CustomSelect({elem: elSel});
sel.open();
document.getElementById('custom-' + elSel.id).style.width = (document.getElementById('custom-' + elSel.id).querySelector('.js-Dropdown-list').clientWidth + 32) + 'px';
sel.close();
}
//document.getElementById('divAdvancedOptions').style.display = 'none';
} else if (evt.data.type === 'initResultsTable') {
tblResult.innerHTML = evt.data.content;
divLogs2.innerHTML = '<p>Stage comments:</p>';
olStageComments = document.createElement('ol');
olStageComments.id = 'olStageComments';
divLogs2.append(olStageComments);
} else if (evt.data.type === 'describeCount') {
document.getElementById('resultLogs1').innerHTML = evt.data.content;
} else if (evt.data.type === 'updateResultsTable') {
for (let row = 0; row < evt.data.result.length; row++) {
if (evt.data.result[row]) {
tblResult.rows[row].insertAdjacentHTML('beforeend', evt.data.result[row]);
// Update candidate status
if (
(document.getElementById('selReport').value == 'votes' && row >= 3 && row % 2 == 1) ||
(document.getElementById('selReport').value == 'ballots_votes' && row >= 4 && row % 2 == 0)
) {
if (tblResult.rows[row].lastElementChild.classList.contains('elected')) {
tblResult.rows[row].cells[0].classList.add('elected');
} else {
tblResult.rows[row].cells[0].classList.remove('elected');
}
}
}
}
} else if (evt.data.type === 'updateStageComments') {
let elLi = document.createElement('li');
elLi.id = 'stage' + evt.data.stageNum;
elLi.innerHTML = evt.data.comment;
olStageComments.append(elLi);
} else if (evt.data.type === 'updateDetailedTransfers') {
detailedTransfers[evt.data.stageNum] = evt.data.table;
} else if (evt.data.type === 'finalResultSummary') {
divLogs2.insertAdjacentHTML('beforeend', evt.data.summary);
document.getElementById('printPane').style.display = 'block';
// Linkify stage numbers
document.querySelectorAll('tr.stage-no a').forEach(function(elA) {
elA.onclick = function() {
olStageComments.childNodes.forEach(function(elLi) { elLi.classList.remove('highlight'); });
document.getElementById(elA.href.substring(elA.href.indexOf('#') + 1)).classList.add('highlight');
};
});
} else if (evt.data.type === 'requireInput') {
let response = window.prompt(evt.data.message);
while (response === null) {
response = window.prompt(evt.data.message);
}
worker.postMessage({'type': 'userInput', 'response': response});
} else if (evt.data.type === 'errorMessage') {
divLogs2.insertAdjacentHTML('beforeend', evt.data.message);
}
}
worker.onerror = function(evt) {
alert('An unknown error occurred while counting the votes. More details may be available in the browser\'s developer console.');
}
async function clickCount() {
if (document.getElementById('bltFile').files.length === 0) {
return;
}
// Read BLT file
let bltPath = document.getElementById('bltFile').value;
bltPath = bltPath.substring(Math.max(bltPath.lastIndexOf('\\'), bltPath.lastIndexOf('/')) + 1);
let bltFile = document.getElementById('bltFile').files[0];
let bltData = await bltFile.text();
// Read CON file (if applicable)
let conPath = null;
let conData = null;
if (document.getElementById('conFile').files.length > 0) {
conPath = document.getElementById('conFile').value;
conPath = conPath.substring(Math.max(conPath.lastIndexOf('\\'), conPath.lastIndexOf('/')) + 1);
let conFile = document.getElementById('conFile').files[0];
conData = await conFile.text();
}
// Init STV options
let optsStr = [
document.getElementById('chkRoundSFs').checked ? parseInt(document.getElementById('txtRoundSFs').value) : null,
document.getElementById('chkRoundValues').checked ? parseInt(document.getElementById('txtRoundValues').value) : null,
document.getElementById('chkRoundVotes').checked ? parseInt(document.getElementById('txtRoundVotes').value) : null,
document.getElementById('chkRoundQuota').checked ? parseInt(document.getElementById('txtRoundQuota').value) : null,
document.getElementById('selSumTransfers').value,
document.getElementById('txtMeekSurplusTolerance').value,
document.getElementById('selQuota').value,
document.getElementById('selQuotaCriterion').value,
document.getElementById('selQuotaMode').value,
document.getElementById('selTies').value.split(','),
document.getElementById('txtSeed').value,
document.getElementById('selMethod').value,
document.getElementById('selSurplus').value,
document.getElementById('selPapers').value,
document.getElementById('selExclusion').value,
document.getElementById('chkMeekNZExclusion').checked,
document.getElementById('selSample').value,
document.getElementById('chkSamplePerBallot').checked,
document.getElementById('chkBulkElection').checked,
document.getElementById('chkBulkExclusion').checked,
document.getElementById('chkDeferSurpluses').checked,
document.getElementById('chkImmediateElect').checked,
document.getElementById('txtMinThreshold').value,
conPath,
document.getElementById('selConstraintMethod').value,
parseInt(document.getElementById('txtPPDP').value),
];
// Reset UI
document.getElementById('printPane').style.display = 'none';
document.getElementById('resultLogs1').innerHTML = '';
tblResult.innerHTML = '';
divLogs2.innerHTML = '';
detailedTransfers = {};
// Dispatch to worker
worker.postMessage({
'type': 'countElection',
// Data
'bltData': bltData,
'conData': conData,
'bltPath': bltPath,
'conPath': conPath,
// Options
'optsStr': optsStr,
'numbers': document.getElementById('selNumbers').value,
'decimals': document.getElementById('txtDP').value,
'reportStyle': document.getElementById('selReport').value,
});
}
function viewDetailedTransfers(stageNum) {
let wtransfers = window.open('', '', 'location=0,width=800,height=600');
wtransfers.document.title = 'OpenTally Detailed Transfers: Stage ' + stageNum;
// Add stylesheets
for (let elCSSBase of document.querySelectorAll('head link')) {
let elCSS = wtransfers.document.createElement('link');
elCSS.rel = elCSSBase.rel;
elCSS.type = elCSSBase.type;
if (elCSSBase.href.endsWith('?v=GITVERSION')) {
elCSS.href = elCSSBase.href.replace('?v=GITVERSION', '?v=' + Math.random());
} else {
elCSS.href = elCSSBase.href;
}
wtransfers.document.head.appendChild(elCSS);
}
wtransfers.document.body.innerHTML = detailedTransfers[stageNum];
}
// Provide a default seed
if (document.getElementById('txtSeed').value === '') {
function pad(x) { if (x < 10) { return '0' + x; } return '' + x; }
let d = new Date();
document.getElementById('txtSeed').value = d.getFullYear() + pad(d.getMonth() + 1) + pad(d.getDate());
}