added survey dialog. closes #1307

app/controller.js

@@ -2,11 +2,12 @@ import FileSender from './fileSender';
 import FileReceiver from './fileReceiver';
 import { copyToClipboard, delay, openLinksInNewTab, percent } from './utils';
 import * as metrics from './metrics';
-import { bytes } from './utils';
+import { bytes, locale } from './utils';
 import okDialog from './ui/okDialog';
 import copyDialog from './ui/copyDialog';
 import shareDialog from './ui/shareDialog';
 import signupDialog from './ui/signupDialog';
+import surveyDialog from './ui/surveyDialog';
 
 export default function(state, emitter) {
   let lastRender = 0;
@@ -281,6 +282,22 @@ export default function(state, emitter) {
     // metrics.copiedLink({ location });
   });
 
+  emitter.on('closeModal', () => {
+    if (
+      state.PREFS.surveyUrl &&
+      ['copy', 'share'].includes(state.modal.type) &&
+      locale().startsWith('en') &&
+      (state.storage.totalUploads > 1 || state.storage.totalDownloads > 0) &&
+      !state.user.surveyed
+    ) {
+      state.user.surveyed = true;
+      state.modal = surveyDialog();
+    } else {
+      state.modal = null;
+    }
+    render();
+  });
+
   setInterval(() => {
     // poll for updates of the upload list
     if (!state.modal && state.route === '/') {