You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
92 lines
3.1 KiB
JavaScript
92 lines
3.1 KiB
JavaScript
const invocation = new XMLHttpRequest();
|
|
const url = 'https://pad.xpub.nl/p/special_issue_8_cnn/export/txt';
|
|
|
|
function findCategories(data){
|
|
// Return categories that this page is part of
|
|
// by doing a reversed dictionary lookup
|
|
var current_url = window.location.href;
|
|
var keys = Object.keys(data)
|
|
var categories = [];
|
|
for(var i=0; i<keys.length; i++){
|
|
var urls = data[keys[i]];
|
|
for(var x=0; x<urls.length; x++){
|
|
if(urls[x] === current_url){
|
|
console.log('MATCH:', keys[i]);
|
|
categories.push(keys[i]);
|
|
}
|
|
}
|
|
}
|
|
return categories;
|
|
}
|
|
|
|
function CategoryNetworkNavigator(data){
|
|
// Pick two categories that this page is part of
|
|
// and insert links to other pages of the same category
|
|
|
|
var data = JSON.parse(data);
|
|
|
|
// Find categories that this page is part of
|
|
var categories = findCategories(data);
|
|
|
|
if ( categories.length > 0 && categories.length < 2){
|
|
//if we have only one category we add another one at random
|
|
var keys = Object.keys(data)
|
|
keys.splice(categories[1], 1)
|
|
categories.push(keys[Math.floor(Math.random() * keys.length)])
|
|
}
|
|
|
|
// Select a pseudo-randomised category for buttonA
|
|
var buttonA = categories[Math.floor(Math.random() * categories.length)];
|
|
document.querySelectorAll('#buttonA button')[0].textContent = buttonA;
|
|
|
|
// Select another category for buttonB
|
|
var indexA = categories.indexOf(buttonA);
|
|
categories.splice(indexA, 1);
|
|
var buttonB = categories[Math.floor(Math.random() * categories.length)];
|
|
document.querySelectorAll('#buttonB button')[0].textContent = buttonB;
|
|
|
|
// Insert a link for each button
|
|
// to another page of the same category
|
|
var linksA = data[buttonA];
|
|
var linksB = data[buttonB];
|
|
linksA.splice(window.location.href, 1);
|
|
linksB.splice(window.location.href, 1);
|
|
document.getElementById("buttonA").href = linksA[Math.floor(Math.random() * linksA.length)];
|
|
document.getElementById("buttonB").href = linksB[Math.floor(Math.random() * linksB.length)];
|
|
}
|
|
|
|
function readEtherpadJSON(){
|
|
if (invocation){
|
|
invocation.open( "GET", url, true );
|
|
invocation.onreadystatechange = function() {
|
|
console.log('ready!');
|
|
if (invocation.readyState === 4 && invocation.status === 200) {
|
|
console.log('invocation:', invocation);
|
|
CategoryNetworkNavigator(invocation.responseText);
|
|
}
|
|
};
|
|
invocation.send();
|
|
}
|
|
return invocation;
|
|
}
|
|
|
|
function insertCNN(cnn_template){
|
|
document.body.innerHTML = cnn_template + document.body.innerHTML;
|
|
readEtherpadJSON();
|
|
}
|
|
|
|
var cnn_template = '<!-- START CNN -->\
|
|
<div id="cnn">\
|
|
<div class="button_container">\
|
|
<a id="buttonA" href="http://b-e-e-t.r-o-o-t.net/pages/please_to_foshan.html"><button class="cnn-button">WHAT IS A NETWORK?</button></a>\
|
|
</div>\
|
|
<div class="button_container">\
|
|
<a id="buttonB" href="http://richfolks.club/"><button class="cnn-button">AUTONOMY AND ITS CONTINGENCIES</button></a>\
|
|
</div>\
|
|
<a id="sitemap" href="https://issue.xpub.nl/08/"><button class="cnn-button">netmap</button></a>\
|
|
</div>\
|
|
<link rel="stylesheet" type="text/css" href="https://issue.xpub.nl/08/cnn/cnn.css">\
|
|
<!-- END CNN -->'
|
|
|
|
insertCNN(cnn_template);
|