fix(app): Support "url" url parameter

Author: floryst

src/app.js

@@ -19,6 +19,7 @@ import { Actions, Mutations } from 'simput/src/stores/types';
 
 import registerDefaultProperties from 'simput/src/components/properties/registerDefaults';
 import HookManager from 'simput/src/core/HookManager';
+import ReaderFactory from 'simput/src/io/ReaderFactory';
 
 Vue.use(Vuetify);
 
@@ -70,10 +71,26 @@ export function createViewer() {
 
   return {
     processURLArgs() {
-      const { type } = vtkURLExtract.extractURLParameters();
-      if (type) {
+      const { url, type } = vtkURLExtract.extractURLParameters();
+      if (url || type) {
         // don't flash landing
         Store.commit(Mutations.SHOW_APP);
+      }
+
+      // try URL first, then load type
+      if (url) {
+        return ReaderFactory.downloadDataset('data.zip', url).then((result) => {
+          const { dataset } = result;
+          if (dataset.type && dataset.data) {
+            Store.commit(Mutations.SET_MODEL, {
+              type: dataset.type,
+              data: dataset.data,
+            });
+            return Store.dispatch(Actions.LOAD_TEMPLATE, dataset.type);
+          }
+          return Promise.reject(new Error('No model found in download'));
+        });
+      } else if (type) {
         Store.commit(Mutations.SET_MODEL, {
           type,
           data: {},