carto: extract draw method from old design carto

app/javascript/old_design/carto/draw.js

@@ -0,0 +1,45 @@
+import { EDIT, DELETE } from 'leaflet-freedraw';
+import { on } from '@utils';
+
+import {
+  drawLayer,
+  CADASTRE_POLYGON_STYLE,
+  QP_POLYGON_STYLE
+} from '../../shared/carto';
+
+const SOURCES = {
+  cadastres: CADASTRE_POLYGON_STYLE,
+  quartiersPrioritaires: QP_POLYGON_STYLE
+};
+
+export default function draw(map, freeDraw) {
+  return data => {
+    if (data.selection) {
+      drawSelection(freeDraw, data.selection);
+    }
+    for (let source of Object.keys(SOURCES)) {
+      if (data[source]) {
+        drawLayer(map, data[source], SOURCES[source], source);
+      }
+    }
+    addEventEdit(freeDraw);
+  };
+}
+
+function drawSelection(selection, freeDraw) {
+  for (let polygon of selection) {
+    freeDraw.createPolygon(polygon);
+  }
+}
+
+function addEventEdit(freeDraw) {
+  document
+    .querySelector('.leaflet-container svg')
+    .removeAttribute('pointer-events');
+
+  on('.leaflet-container g path', 'click', () => {
+    setTimeout(() => {
+      freeDraw.mode(EDIT | DELETE);
+    }, 50);
+  });
+}