Added Jupyter Lab 4 support (#1146)

* Added @Lumino dependencies.

* Removed unused @Lumino dependencies.

* Updated webpack-cli version.

* Changed @Lumino dependencies to v2.

* Removed @Lumino dependencies.

* Fixed resize bug.

Added if(!this.obj) return; for all branches.

* Updated @jupyterlab/builder version.

* Updated @jupyterlab/builder dependency.

* Updated jupyterlab python version.

js/package.json

@@ -50,7 +50,7 @@
     "stream-browserify": "^3.0.0"
   },
   "devDependencies": {
-    "@jupyterlab/builder": "^3.6.0",
+    "@jupyterlab/builder": "^4.0.8",
     "css-loader": "^3.4.2",
     "eslint": "^8.23.1",
     "eslint-config-prettier": "^8.5.0",
@@ -65,7 +65,7 @@
     "rimraf": "^2.6.1",
     "style-loader": "^1.1.2",
     "webpack": "^5",
-    "webpack-cli": "^3.3.10"
+    "webpack-cli": "^5.1.4"
   },
   "jupyterlab": {
     "extension": "src/jupyterlab-plugin",

js/src/Map.js

@@ -448,6 +448,7 @@ export class LeafletMapView extends utils.LeafletDOMWidgetView {
 
   _processLuminoMessage(msg, _super) {
     _super.call(this, msg);
+    if(!this.obj) return;
     switch (msg.type) {
       case 'resize':
         // We set the dirty flag to true to prevent the sub-pixel error
@@ -468,7 +469,6 @@ export class LeafletMapView extends utils.LeafletDOMWidgetView {
         this.dirty = true;
         // If we are in a jupyter-widget tab, we get an after-show before
         // this.displayed is resolved. In this case, obj is not created yet.
-        if(!this.obj) return;
         this.obj.invalidateSize({
           animate: false,
           pan: true,

pyproject.toml

@@ -1,4 +1,4 @@
 [build-system]
 # avoid 3.6 so we don't need the rust buildchain
-requires = ["jupyter_packaging~=0.12", "jupyterlab~=3.6.0", "setuptools>=40.8.0", "wheel"]
+requires = ["jupyter_packaging~=0.12", "jupyterlab~=4.0.8", "setuptools>=40.8.0", "wheel"]
 build-backend = "setuptools.build_meta"