Fix displayOnLoad not honoured at import

fix #1043

umap/static/umap/js/umap.layer.js

@@ -1114,6 +1114,7 @@ L.U.DataLayer = L.Evented.extend({
   },
 
   redraw: function () {
+    if (!this.isVisible()) return
     this.hide()
     this.show()
   },

umap/tests/fixtures/display_on_load.umap

@@ -0,0 +1,85 @@
+{
+  "type": "umap",
+  "uri": "http://localhost:8020/fr/map/carte-sans-nom_128#6/50.233/6.910",
+  "properties": {
+    "easing": false,
+    "embedControl": true,
+    "fullscreenControl": true,
+    "searchControl": true,
+    "datalayersControl": true,
+    "zoomControl": true,
+    "permanentCreditBackground": true,
+    "slideshow": {},
+    "captionMenus": true,
+    "captionBar": false,
+    "limitBounds": {},
+    "overlay": null,
+    "licence": "",
+    "description": "",
+    "name": "Carte sans nom",
+    "displayPopupFooter": false,
+    "miniMap": false,
+    "moreControl": true,
+    "scaleControl": true,
+    "scrollWheelZoom": true,
+    "zoom": 6
+  },
+  "geometry": {
+    "type": "Point",
+    "coordinates": [
+      6.734619140625,
+      50.359480346298696
+    ]
+  },
+  "layers": [
+    {
+      "type": "FeatureCollection",
+      "features": [
+        {
+          "type": "Feature",
+          "properties": {},
+          "geometry": {
+            "type": "Point",
+            "coordinates": [
+              5.141602,
+              50.889174
+            ]
+          }
+        }
+      ],
+      "_umap_options": {
+        "displayOnLoad": true,
+        "inCaption": true,
+        "browsable": true,
+        "editMode": "advanced",
+        "name": "Visible",
+        "remoteData": {}
+      }
+    },
+    {
+      "type": "FeatureCollection",
+      "features": [
+        {
+          "type": "Feature",
+          "properties": {},
+          "geometry": {
+            "type": "Point",
+            "coordinates": [
+              5.383301,
+              49.809632
+            ]
+          }
+        }
+      ],
+      "_umap_options": {
+        "displayOnLoad": false,
+        "inCaption": true,
+        "browsable": true,
+        "editMode": "advanced",
+        "remoteData": {},
+        "name": "Invisible",
+        "color": "DarkRed"
+      }
+    }
+  ]
+}

umap/tests/integration/test_import.py

@@ -0,0 +1,25 @@
+from pathlib import Path
+
+import pytest
+from playwright.sync_api import expect
+
+pytestmark = pytest.mark.django_db
+
+
+def test_umap_import(live_server, datalayer, page):
+    page.goto(f"{live_server.url}/map/new/")
+    button = page.get_by_title("Import data (Ctrl+I)")
+    expect(button).to_be_visible()
+    button.click()
+    with page.expect_file_chooser() as fc_info:
+        page.locator("input[type='file']").click()
+    file_chooser = fc_info.value
+    path = Path(__file__).parent.parent / "fixtures/display_on_load.umap"
+    file_chooser.set_files(path)
+    button = page.get_by_role("button", name="Import")
+    expect(button).to_be_visible()
+    button.click()
+    layers = page.locator(".umap-browse-datalayers li")
+    expect(layers).to_have_count(3)
+    nonloaded = page.locator(".umap-browse-datalayers li.off")
+    expect(nonloaded).to_have_count(1)