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| var wsock = require('websocket-stream'); | |
| var ws = wsock('ws://' + location.host); | |
| var split = require('split2'); | |
| var through = require('through2'); | |
| var h = require('virtual-dom/h'); | |
| var state = { images: [] }; | |
| var createImage = require('./image.js'); | |
| var main = require('main-loop'); | |
| var loop = main(state, render, require('virtual-dom')); | |
| document.body.insertBefore(loop.target, document.body.childNodes[0]) | |
| function render (state) { | |
| return h('div#activity', state.images.map(function (key) { | |
| return createImage(key); | |
| })); | |
| } | |
| ws.pipe(split()).pipe(through(function (buf, enc, next) { | |
| console.log('key=', buf.toString()); | |
| state.images.unshift(buf.toString()); | |
| loop.update(state); | |
| next(); | |
| })); |
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| var h = require('virtual-dom/h'); | |
| module.exports = function (key) { | |
| return h('div.image', [ | |
| h('img', { | |
| src: '/images/' + key | |
| }) | |
| ]); | |
| }; |
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| <html> | |
| <body> | |
| <h1>IMAGES</h1> | |
| <div id="content"></div> | |
| <script src="bundle.js"></script> | |
| </body> | |
| </html> |
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| var http = require('http'); | |
| var level = require('level'); | |
| var db = level('/tmp/whatever.db', { | |
| valueEncoding: 'json' | |
| }); | |
| var qs = require('querystring'); | |
| var blob = require('content-addressable-blob-store'); | |
| var store = blob({ path: '/tmp/blobs' }); | |
| var through = require('through2'); | |
| var createImage = require('./image.js'); | |
| var wsock = require('websocket-stream'); | |
| var ecstatic = require('ecstatic')(__dirname + '/public'); | |
| var fs = require('fs'); | |
| var vstr = require('virtual-dom-stringify'); | |
| var hyperstream = require('hyperstream'); | |
| var server = http.createServer(function (req, res) { | |
| if (req.method === 'POST') { | |
| req.pipe(store.createWriteStream(function (err, w) { | |
| if (err) return res.end(err); | |
| putImage(w.key); | |
| })); | |
| } | |
| else if (req.url === '/') { | |
| var r = db.createReadStream({ | |
| gt: 'activity!', | |
| lt: 'activity!~', | |
| reverse: true | |
| }); | |
| fs.createReadStream(__dirname + '/public/index.html') | |
| .pipe(hyperstream({ | |
| '#content': r.pipe(through.obj(write)) | |
| })) | |
| .pipe(res) | |
| ; | |
| function write (row, enc, next) { | |
| var tree = createImage(row.value) | |
| this.push(vstr(tree)); | |
| next(); | |
| } | |
| } | |
| else if (req.url.split('/')[1] === 'images') { | |
| var key = req.url.split('/')[2]; | |
| res.setHeader('content-type', 'image/svg+xml'); | |
| var r = store.createReadStream(key); | |
| r.on('error', function (err) { res.end(err + '\n') }); | |
| r.pipe(res); | |
| } | |
| else ecstatic(req, res); | |
| function putImage (key) { | |
| var rows = [ | |
| { | |
| type: 'put', | |
| key: 'image!' + key, | |
| value: 0 | |
| }, | |
| { | |
| type: 'put', | |
| key: 'activity!' + new Date().toISOString(), | |
| value: key | |
| } | |
| ]; | |
| db.batch(rows, function (err) { | |
| if (err) return res.end(err); | |
| updates.emit('image', key); | |
| res.end('ok\n'); | |
| }); | |
| } | |
| }); | |
| server.listen(5000); | |
| var EventEmitter = require('events').EventEmitter; | |
| var updates = new EventEmitter; | |
| wsock.createServer({ server: server }, function (stream) { | |
| updates.on('image', onimage); | |
| function onimage (key) { | |
| stream.write(key + '\n'); | |
| } | |
| stream.on('end', function () { | |
| updates.removeListener('image', onimage); | |
| }); | |
| }); |
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