gun
Version:
A realtime, decentralized, offline-first, graph data synchronization engine.
179 lines (170 loc) • 6.46 kB
HTML
<html>
<head>
<title>Gun plugin for Vue</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- This example works only with vue 1 -->
<script src="https://cdn.jsdelivr.net/npm/gun/gun.js"></script>
<script src="https://unpkg.com/vue@1.0.0/dist/vue.min.js"></script>
</head>
<body>
<div id="app">
This is example of simple Vue plugin. It works exatcly same as the Vue instance data property, but the name is gunData.<br>
The cool part is that every property in the gunData is realtime synced via gunDB to every other page viewer!<br>
<table>
<tr>
<td>
Vue instance data:
<pre v-html="prettyJSON($data)"></pre>
</td>
<td valign="top" style="text-align:right;">
test<br>
arr[1]<br>
obj.a<br>
deepObj.level1.prop<br>
deepObj.level1.arr[1]<br>
</td>
<td valign="top">
<input v-model="test"><br>
<input v-model="arr[1]"><br>
<input v-model="obj.a"><br>
<input v-model="deepObj.level1.prop"><br>
<input v-model="deepObj.level1.arr[1]"><br>
<input v-if="obj.newProp_1" v-model="obj.newProp_1"><br>
<br>
<button @click="addProp()">Add new prop to obj</button>
</td>
</tr>
</table>
</div>
<script>
Vue.config.productionTip = false;
localStorage.clear();
var GunData = {
install: function (Vue, options) {
Vue.$gunData = {
gun: Gun(options),
arrToGunObj: function (a) {
var o = { _isArr: true }, l = a.length;
for (var i = 0; i < l; i++) if (a[i] !== undefined) o[i] = a[i];
return o;
},
addGunWatcher: function (keyPath, val, vm) {
// console.log('addGunWatcher',keyPath);
this.gun.get(vm.$options.$gunRootKey).path(keyPath)
.not(function () { this.put(typeof val == 'object' && val.constructor === Array ? this.arrToGunObj(val) : val) })
.on(function (gunVal, gunKey) {
if (typeof gunVal == 'object') return; /* only do stuff on non objects */
var vmPath = vm;
for (var i = 0, a = keyPath.split('.'), l = a.length; i < l - 1; i++) vmPath = vmPath[a[i]];
if (typeof vmPath[gunKey] == 'undefined') console.log('EIPÄ OO', gunkey);
if (vmPath[gunKey] !== gunVal) vm.$set(vmPath, vmPath.constructor === Array ? gunKey * 1 : gunKey, gunVal);
}, { change: true });
},
timeout: {},
vueWatcher: {},
addVueWatcher: function (keyPath, vm) {
// console.log('VUE WATCHER',keyPath,vm.$options.$gunRootKey);
this.vueWatcher[keyPath] = vm.$watch(keyPath, function (newVal) {
clearTimeout(Vue.$gunData.timeout[vm.$options.$gunRootKey + keyPath]);
Vue.$gunData.timeout[vm.$options.$gunRootKey + keyPath] = setTimeout(function () { Vue.$gunData.gun.get(vm.$options.$gunRootKey).path(keyPath).put(newVal) }, 500);
});
},
addWatchers: function (obj, keyPath, vm) {
if (keyPath) keyPath += '.';
var o = {}, a = obj, ok = Object.keys(a), l = ok.length, k = '', v = '';
for (var i = 0; i < l, k = ok[i], v = a[k]; i++) {
if (typeof v == 'object') {
this.addWatchers(v, keyPath + k, vm);
} else {
// console.log('add watcher',k,v,keyPath+k);
if (!this.vueWatcher[keyPath + k]) {
Vue.$gunData.addVueWatcher(keyPath + k, vm);
Vue.$gunData.addGunWatcher(keyPath + k, v, vm);
}
}
}
}
}
Vue.mixin({
data: function () {
var o = {}, a = this.$options.gunData;
this.$options.$gunRootKey = (a._rootKey || window.location.hostname).replace(/\./g, '-');
delete a._rootKey;
for (var k = '', v = '', i = 0, ok = Object.keys(a), l = ok.length; i < l, k = ok[i], v = a[k]; i++) o[k] = v;
return o;
},
created: function () {
Vue.$gunData.addWatchers(this.$options.gunData, '', this)
}
});
}
}
/********************** SIMPLE NODE GUN SERVER EXAMPLE FOR BACKEND **********************/
// var http = require('http'), Gun = require('gun');
// Gun({ web: http.createServer().listen(8765) });
/********************** MODIFY WITH OUR OWN SERVER ADDRESS **********************/
// Vue.use(GunData, 'http://REPLACE.WITH.YOUR.GUN.SERVER:SERVERPORT/gun');
var inst = new Vue({
el: '#app',
methods: {
addProp() { Vue.set(this.obj, 'newProp_' + Object.keys(this.obj).length, 'qwerty') },
// the prettyJSON code is from icebob https://jsfiddle.net/icebob/0mg1v81e/
prettyJSON: function (json) {
if (json) {
json = JSON.stringify(json, undefined, 4);
json = json.replace(/&/g, '&').replace(/</g, '<').replace( />/g, '>');
return json.replace(/("(\\u[a-zA-Z0-9]{4}|\\[^u]|[^\\"])*"(\s*:)?|\b(true|false|null)\b|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?)/g, function (match) {
var cls = 'number';
if (/^"/.test(match)) {
if (/:$/.test(match)) {
cls = 'key';
} else {
cls = 'string';
}
} else if (/true|false/.test(match)) {
cls = 'boolean';
} else if (/null/.test(match)) {
cls = 'null';
}
return '<span class="' + cls + '">' + match + '</span>';
});
}
}
},
gunData: {
// _rootKey: 'put-your-gunDB-root-key-here', // DEFAULTS TO HOSTNAME
test: 'abc',
arr: [1, 2],
obj: { a: 1 },
deepObj: {
level1: {
arr: [1, 2],
prop: 2
}
}
}
});
</script>
<style>
pre {
overflow: auto;
}
pre .string {
color: #885800;
}
pre .number {
color: blue;
}
pre .boolean {
color: magenta;
}
pre .null {
color: red;
}
pre .key {
color: green;
}
</style>
</body>
</html>