Fix geosolutions-it#3852 Annotation do not work without setting initi…

…al state

It turned out the annotation plugin cannot draw on the map when
the default configuration is not provided. This commit fix and allow
annotation to work well without default config.

web/client/epics/__tests__/annotations-test.js

@@ -16,7 +16,7 @@ const {set} = require('../../utils/ImmutableUtils');
 const {HIDE_MAPINFO_MARKER, PURGE_MAPINFO_RESULTS, purgeMapInfoResults} = require('../../actions/mapInfo');
 const {configureMap} = require('../../actions/config');
 const {CLOSE_IDENTIFY} = require('../../actions/mapInfo');
-const {editAnnotation, confirmRemoveAnnotation, saveAnnotation, cancelEditAnnotation,
+const {editAnnotation, confirmRemoveAnnotation, saveAnnotation, startDrawing, cancelEditAnnotation,
     setStyle, highlight, cleanHighlight, download, loadAnnotations, SET_STYLE, toggleStyle,
     resetCoordEditor, changeRadius, changeText, changeSelected, confirmDeleteFeature, openEditor, SHOW_ANNOTATION
 } = require('../../actions/annotations');
@@ -856,4 +856,24 @@ describe('annotations Epics', () => {
         store.dispatch(action);
     });
 
+    it('should safely start drawing annotation when no annotation config provided', (done) => {
+        store = mockStore({
+            annotations: {
+                editing: {
+                    features: [{}]
+                }
+            }
+        });
+
+        store.subscribe(() => {
+            const actions = store.getActions();
+            if (actions.length >= 2) {
+                expect(actions[1].type).toBe(CHANGE_DRAWING_STATUS);
+                done();
+            }
+        });
+        const action = startDrawing();
+        store.dispatch(action);
+    });
+
 });

web/client/epics/annotations.js

@@ -8,6 +8,7 @@
 
 const Rx = require('rxjs');
 const {saveAs} = require('file-saver');
+const {get} = require('lodash');
 const {MAP_CONFIG_LOADED} = require('../actions/config');
 const {TOGGLE_CONTROL, toggleControl, setControlProperty} = require('../actions/controls');
 const {addLayer, updateNode, changeLayerProperties, removeLayer} = require('../actions/layers');
@@ -320,7 +321,7 @@ module.exports = (viewer) => ({
             const feature = state.annotations.editing;
             const type = state.annotations.featureType;
             const defaultTextAnnotation = state.annotations.defaultTextAnnotation;
-            const multiGeom = state.annotations.config.multiGeometry;
+            const multiGeom = get(state, 'annotations.config.multiGeometry');
             const drawOptions = {
                 featureProjection: "EPSG:4326",
                 stopAfterDrawing: !multiGeom,