tables.html
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<!DOCTYPE html>
<h1>Tables</h1>
<form id="sign">
<input id="alias" placeholder="username">
<input id="pass" type="password" placeholder="passphrase">
<input id="in" type="submit" value="sign in">
<input id="up" type="button" value="sign up">
</form>
<button id="tadd">+ table</button>
<ul></ul><br/>
<div id="table"></div>
<button id="radd">+ row</button>
<button id="cadd">+ col</button>
<style>
div {
position: relative;
overflow: hidden;
}
.cell {
width: 5em;
height: 5em;
border: 1px solid black;
float: left;
}
.item {
float: left;
min-width: 5em;
}
</style>
<div class="model" style="display: none;">
<div class="item"></div>
<div class="cell"></div>
<div class="row"></div>
</div>
<script src="https://cdn.jsdelivr.net/npm/gun/examples/jquery.js"></script>
<script src="https://cdn.jsdelivr.net/npm/gun/gun.js"></script>
<script src="https://cdn.jsdelivr.net/npm/gun/sea.js"></script>
<script src="https://cdn.jsdelivr.net/npm/gun/lib/open.js"></script>
<script>
//var gun = Gun(['http://localhost:8080/gun']);
var gun = Gun();
var user = gun.user();
$('#up').on('click', function(e){
user.create($('#alias').val(), $('#pass').val());
});
$('#sign').on('submit', function(e){
e.preventDefault();
user.auth($('#alias').val(), $('#pass').val());
});
user.recall({sessionStorage: true});
gun.on('auth', function(){
$('#sign').hide();
user.get('tables').map().once(list);
});
$('#tadd').on('click', function(e){
if(!user.is){ return alert("login first") }
var cell = user.get('cells').set({what: "Edit me!", sort: 1});
var row = user.get('rows').set({sort: 1});
row.get('cells').set(cell);
var name = prompt("What do you want to call this table?")
var table = user.get('tables').set({name: name});
table.get('rows').set(row);
choose(table);
});
$(document).on('click', '.item', function(){
choose($(this).data('$'));
});
function choose(table){
choose.table = table;
table.open(render);
}
function render(data){
console.log(data);
$('#table').empty(); // BAD! Write DOM-diffing!
Gun.obj.map(data.rows, function(row, id){
var $r = grab(id, '.model .row', '#table');
Gun.obj.map(row.cells, function(cell, id){
var $c = grab(id, '.model .cell', $r);
$c.text(cell.what);
});
});
}
$(document).on('click', '.cell', function(e){
var id = $(this).data('id'), ref = gun.get(id);
var what = prompt("What should be in this cell?");
ref.get('what').put(what);
});
$('#radd').on('click', function(){
if(!user.is){ return alert("login first") }
choose.table.get('rows').set();
var cell = user.get('cells').set({what: "Edit me!", sort: 1});
var row = user.get('rows').set({sort: 1});
row.get('cells').set(cell);
choose.table.get('rows').set(row);
});
$('#cadd').on('click', function(){
if(!user.is){ return alert("login first") }
choose.table.get('rows').map().once(function(){
var cell = user.get('cells').set({what: "Edit me!", sort: 1});
this.get('cells').set(cell);
});
});
function grab(id, $model, $to){
var did = btoa(id).replace(/[\+\-\=\.]/ig,'');
return $('#' + did).get(0) || $($model).clone(true, true).attr('id', did).appendTo($to).data('id', id);
};
function list(table, id, $model, $to){
var li = grab(id, '.model .item', 'ul');
$(li).text(table.name).data('$', this);
};
</script>