[GridLayer] redraw tiles properly after changing maxNativeZoom (#6443)

Leaflet · Nov 26, 2021 · 2e86387 · 2e86387
1 parent 05fa580
commit 2e86387
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diff --git a/spec/suites/layer/tile/GridLayerSpec.js b/spec/suites/layer/tile/GridLayerSpec.js
@@ -354,6 +354,18 @@ describe('GridLayer', function () {
 
 			map.addLayer(grid);
 		});
+
+		it("redraws tiles properly after changing maxNativeZoom", function () {
+			var initialZoom = 12;
+			map.setView([0, 0], initialZoom);
+
+			var grid = L.gridLayer().addTo(map);
+			expect(grid._tileZoom).to.be(initialZoom);
+
+			grid.options.maxNativeZoom = 11;
+			grid.redraw();
+			expect(grid._tileZoom).to.be(11);
+		});
 	});
 
 	describe("number of 256px tiles loaded in synchronous non-animated grid @800x600px", function () {

diff --git a/src/layer/tile/GridLayer.js b/src/layer/tile/GridLayer.js
@@ -228,6 +228,11 @@ export var GridLayer = Layer.extend({
 	redraw: function () {
 		if (this._map) {
 			this._removeAllTiles();
+			var tileZoom = this._clampZoom(this._map.getZoom());
+			if (tileZoom !== this._tileZoom) {
+				this._tileZoom = tileZoom;
+				this._updateLevels();
+			}
 			this._update();
 		}
 		return this;