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index.html
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<!--
Cypher.js graph query engine for Javascript
Copyright (c) 2021 "Niclas Kjall-Ohlsson"
This file is part of Cypher.js.
Cypher.js 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.
Cypher.js 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 Cypher.js. If not, see <https://www.gnu.org/licenses/>.
-->
<html>
<head>
<meta charset="utf-8"/>
<title>Cypher.js</title>
<link rel="stylesheet" type="text/css" href="css/web.css">
<link rel="stylesheet" type="text/css" href="css/graph.css">
<script type="text/javascript" src="js/Cypher.min.js"></script>
<script type="text/javascript" src="js/GraphViewer.js"></script>
<script type="text/javascript" src="other_js/d3.min.js"></script>
<script type="text/javascript" src="other_js/jquery.min.js"></script>
<script type="text/javascript">
var outputCounter = 0;
function init() {
cypher = new Cypher({runInWebWorker: true});
queryInput = document.getElementById('cypherQuery');
output = document.getElementById('output');
if(window.location.href.indexOf('?') > -1) {
var urlCypherQueryParameter =
decodeURIComponent(
window.location.href.split('?')[1]
);
if(urlCypherQueryParameter != undefined && urlCypherQueryParameter.length > 0) {
setInput(urlCypherQueryParameter);
query(urlCypherQueryParameter);
}
}
}
function setInput(q) {
queryInput.value = q;
}
function input(target, e) {
if(e.keyCode == 13 && !e.shiftKey) {
e.preventDefault();
if(target.value.length == 0) return;
query(target.value);
//target.value = "";
}
}
function now() {
return (new Date()).getTime();
}
function getDuration(startTime, endTime, withMilliseconds) {
var ds = '';
if(endTime) {
var s = new Date(parseInt(startTime));
var e = new Date(parseInt(endTime));
var cj, diff, days, hours, minutes, seconds, milliseconds, remainder;
diff = e - s;
days = Math.floor(diff/(24*60*60*1000));
remainder = diff%(24*60*60*1000);
hours = Math.floor(remainder/(60*60*1000));
remainder = remainder%(60*60*1000);
minutes = Math.floor(remainder/(60*1000));
remainder = remainder%(60*1000);
seconds = Math.floor(remainder/1000);
milliseconds = remainder%1000;
ds = (days > 0 ? days + 'd': '');
ds += (ds != '' ? " " : '') + (hours > 0 ? hours + 'h': '');
ds += (ds != '' ? " " : '') + (minutes > 0 ? minutes + 'm': '');
ds += (ds != '' ? " " : '') + (seconds > 0 ? seconds + 's': '');
if(withMilliseconds) {
ds += (ds != '' ? " " : '') + (milliseconds > 0 ? milliseconds + 'ms': '');
}
}
return ds;
}
function format(o) {
if(o == undefined || o == null) return null;
var r = '', e;
if(o.constructor == Array) {
r += '[';
for(var i=0; i<o.length; i++) {
/*if(o[i] && o[i].properties) {
e = JSON.stringify(o[i].properties);
} else {
e = JSON.stringify(o[i]);
}*/
e = JSON.stringify(o[i]);
r += (i>0?',':'') + e;
}
r += ']';
return r;
} else if(o.constructor == String) {
return o;
}
return JSON.stringify(o);
}
function addOutputPlaceHolder(query) {
var out = document.getElementById('output');
var div = document.createElement('div');
div.setAttribute('class', 'output');
var formattingTable = document.createElement('table');
formattingTable.setAttribute("class", "results");
formattingTable.style.width = "100%";
var tr = formattingTable.appendChild(
document.createElement('tr')
);
var td = tr.appendChild(document.createElement('td'));
td.setAttribute('colspan', '2');
td.innerHTML = '<div class="query">$ <a class="query" href="javascript:void(null)" onclick="setInput(this.innerText)">' + query + '</a></div>';
tr = formattingTable.appendChild(
document.createElement('tr')
);
td = tr.appendChild(
document.createElement('td')
);
td.setAttribute('colspan', '2');
td.setAttribute('align', 'right');
td.innerHTML = 'Running query...';
div.appendChild(formattingTable);
out.insertBefore(div, out.firstChild);
return formattingTable;
}
function addOutput(formattingTable, json, start, end) {
var hasGraphResults = (
json.results ?
json.results.graph.nodes.length > 0 :
false
);
formattingTable.removeChild(
formattingTable.childNodes[
formattingTable.childNodes.length-1
]
);
var tr = formattingTable.appendChild(
document.createElement('tr')
);
td = tr.appendChild(document.createElement('td'));
td.style.width = "30px";
if(hasGraphResults) {
td.innerHTML = "<a href=\"javascript:void(null)\" onclick=\"$('#resultstable" + outputCounter + "').hide(); $('#resultsgraph" + outputCounter + "').show(); $(this).addClass('selected'); $(this).next().next().removeClass('selected');\" class=\"selected\">Graph</a>";
td.innerHTML += "<br><a href=\"javascript:void(null)\" onclick=\"$('#resultstable" + outputCounter + "').show(); $('#resultsgraph" + outputCounter + "').hide(); $(this).toggleClass('selected'); $(this).prev().prev().toggleClass('selected');\">Table</a>";
} else {
td.innerHTML = "Table";
if(json.error) {
td.innerHTML = "Error";
}
}
var resultsCell = tr.appendChild(document.createElement('td'));
var tableDiv = resultsCell.appendChild(document.createElement('div'));
tableDiv.setAttribute("id", "resultstable" + outputCounter);
tableDiv.setAttribute("class", "results");
if(hasGraphResults) {
tableDiv.style.display = "none";
}
var result, objectHtml;
var html = '';
var columnCount = 0;
if(json.error) {
html += '<div>' + json.error + '</div>';
} else if(json.results) {
html += '<table class="results">';
if(json.results.output.length > 0) {
html += '<tr>';
for(var key in json.results.output[0]) {
html += '<th>' + key + '</th>';
columnCount++;
}
html += '</tr>';
}
for(var i in json.results.output) {
html += '<tr>';
for(var key in json.results.output[i]) {
result = json.results.output[i][key];
html += '<td>';
objectHtml = '';
if(result) {
/*for(var resultKey in result.properties) {
objectHtml += '<tr><th>' + resultKey + '</th>';
objectHtml += '<td>' + result.properties[resultKey] + '</td></tr>';
}*/
if(result.constructor == Object) {
for(var resultKey in result) {
objectHtml += '<tr><th>' + resultKey + '</th>';
objectHtml += '<td>' + format(result[resultKey]) + '</td></tr>';
}
} else {
objectHtml += '<td>' + format(result) + '</td></tr>';
}
}
if(objectHtml.length > 0) {
html += '<table class="object">' + objectHtml + '</table>';
html += '</td>';
} else if(objectHtml.length == 0) {
html += format(result);
html += '</td>';
}
}
html += '</tr>';
}
if(json.results.output.length == 0) {
html += '<tr><td>(no records)</td></tr>';
}
html += '</table>';
}
tableDiv.innerHTML = html;
// Timing
var tr = formattingTable.appendChild(
document.createElement('tr')
);
var td = tr.appendChild(
document.createElement('td')
);
td.setAttribute('colspan', '2');
td.setAttribute('align', 'right');
td.innerHTML = 'Query finished in <b>' + getDuration(start, end, true) + '<b>';
if(hasGraphResults) {
var graphDiv = resultsCell.appendChild(document.createElement('div'));
graphDiv.setAttribute("id", "resultsgraph" + outputCounter);
graphDiv.setAttribute("class", "results");
new GraphViewer({
graphData: json.results.graph,
container: graphDiv
});
}
outputCounter++;
}
function query(cypherQuery) {
var formattingTable = addOutputPlaceHolder(cypherQuery);
try {
var start = now();
var r =
cypher.execute(
cypherQuery,
function(results) {
addOutput(
formattingTable,
{query: cypherQuery, results: results},
start,
now()
);
},
function(statusText) {
addOutput(
formattingTable,
{query: cypherQuery, error: statusText},
start,
now()
);
}
);
} catch(e) {
addOutput({query: cypherQuery, error: e});
}
}
</script>
</head>
<body onload="init();">
<textarea
id="cypherQuery"
style="width: 100%; height: 70px;"
placeholder="Type Cypher and press enter..."
onkeydown="input(this, event);"
resizeable="false"></textarea>
<div id="output"></div>
<div style="position: fixed; bottom: 0px; background-color: white; width: 100%;">
<a href="." style="color: black;">Reset</a>
</div>
</body>
</html>