Current Dev State

static/js/ketcher2/node_modules/watchify-middleware/index.js

@@ -0,0 +1,57 @@
+var createBundler = require('./lib/bundler')
+
+module.exports = function watchifyMiddleware (browserify, opt) {
+  var emitter = createEmitter(browserify, opt)
+  return emitter.middleware
+}
+
+module.exports.emitter = createEmitter
+
+module.exports.getWatchifyVersion = function () {
+  return require('watchify/package.json').version
+}
+
+function createEmitter (browserify, opt) {
+  var bundler = createBundler(browserify, opt)
+  var pending = false
+  var contents = ''
+
+  bundler.on('pending', function () {
+    pending = true
+  })
+
+  bundler.on('update', function (data) {
+    pending = false
+    contents = data
+  })
+
+  bundler.middleware = function middleware (req, res) {
+    if (pending) {
+      bundler.emit('log', {
+        level: 'debug',
+        type: 'request',
+        message: 'bundle pending'
+      })
+
+      bundler.once('update', function () {
+        bundler.emit('log', {
+          level: 'debug',
+          type: 'request',
+          message: 'bundle ready'
+        })
+        submit(req, res)
+      })
+    } else {
+      submit(req, res)
+    }
+  }
+
+  return bundler
+
+  function submit (req, res) {
+    res.setHeader('content-type', 'application/javascript; charset=utf-8')
+    res.setHeader('content-length', contents.length)
+    res.statusCode = req.statusCode || 200
+    res.end(contents)
+  }
+}