Preserve job parameters

histomicsui/web_client/panels/MetadataWidget.js

@@ -60,6 +60,10 @@ var MetadataWidgetPanel = Panel.extend({
 
     render: function () {
         if (this.item && this.item.id) {
+            if (!this.item.has('meta')) {
+                this.listenToOnce(this.item, 'g:fetched', this.render);
+                return this;
+            }
             let func = this.item.getAccessLevel;
             if (this.item.get('_modelType') === 'annotation') {
                 func = (callback) => {

histomicsui/web_client/views/body/ImageView.js

@@ -62,13 +62,15 @@ var ImageView = View.extend({
         this.listenTo(events, 'h:analysis:rendered', this._allowRootSelection);
         this.listenTo(events, 'h:analysis:rendered', this._setDefaultFileOutputs);
         this.listenTo(events, 'h:analysis:rendered', this._resetRegion);
+        this.listenTo(events, 'h:analysis:rendered', this._setFieldsFromRouter);
         this.listenTo(this.selectedElements, 'add remove reset', this._redrawSelection);
         this.listenTo(events, 's:widgetDrawRegionEvent', this._widgetDrawRegion);
         this.listenTo(events, 'li:drawRegionUpdate', this._drawRegionUpdate);
         this.listenTo(events, 'li:drawModeChange', this._drawModeChange);
         events.trigger('h:imageOpened', null);
         this.listenTo(events, 'query:image', this.openImage);
         this.annotations = new girder.plugins.large_image_annotation.collections.AnnotationCollection();
+        this.listenTo(events, 's:widgetChanged', this._setRouter);
 
         this.controlPanel = new girder.plugins.slicer_cli_web.views.PanelGroup({
             parentView: this,
@@ -1806,6 +1808,24 @@ var ImageView = View.extend({
                 window.setTimeout(() => $(`#h-analysis-panel .s-select-region-button[shape="${$(evt.originalEvent.target).attr('shape')}"][multi="${$(evt.originalEvent.target).attr('multi')}"][parent-id="${$(evt.originalEvent.target).attr('parent-id')}"]`).eq(0).trigger('click'), 50);
             }
         }
+    },
+
+    _setRouter(evt) {
+        const value = evt.changed.value !== undefined ? String(evt.changed.value) : null;
+        router.setQuery(evt.id, value, {trigger: false, replace: true});
+    },
+
+    _setFieldsFromRouter() {
+        _.each(this.controlPanel.models(), (model) => {
+            const value = router.getQuery(model.id);
+            if (value) {
+                if (model.id === 'region') {
+                    this._displayedRegion = value;
+                }
+                model.set('value', value);
+            }
+        });
     }
+
 });
 export default ImageView;