From d11f40e313d45f7e0ffd860f37a42101997eabf9 Mon Sep 17 00:00:00 2001
From: Renaud Michaelis <renaud.michaelis@gmail.com>
Date: Wed, 28 Aug 2024 10:05:48 +0200
Subject: [PATCH] If a map is initializated with an height of 0 then force the
 map refresh as soon as the height change

---
 geoportal/jsapi/src/map.js | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/geoportal/jsapi/src/map.js b/geoportal/jsapi/src/map.js
index f38a64297..d9e1d9dc6 100644
--- a/geoportal/jsapi/src/map.js
+++ b/geoportal/jsapi/src/map.js
@@ -464,6 +464,11 @@ class Map extends OpenLayersMap {
       'public.lu', 'etat.lu', 'inondations.lu', 'visit-fouhren.lu', 'visit-hoscheid.lu', 'visitjunglinster.lu', 'visitreisdorf.lu', 'visitrosportmompach.lu',
       'mae.lu', 'gouvernement.lu', 'meteolux.lu', 'luxemburg.infomax.online'];
 
+    /**
+     * @private
+     */
+     this.resizeObserver_ = undefined;
+
     /**
      * @private
      * @type {boolean}
@@ -713,6 +718,31 @@ class Map extends OpenLayersMap {
         options.callback.call(this);
       }.bind(this));
     }
+    /**
+     * @private
+     * @type {function()}
+     */
+    this.cbResize_ = function(entries) {
+      for (let entry of entries) {
+        if (entry.contentRect.width > 0 &&
+            entry.contentRect.height > 0) {
+                this.updateSize();
+                if (this.resizeObserver_ !== undefined) {
+                    this.resizeObserver_.unobserve(this.getTargetElement());
+                    this.resizeObserver_ = undefined;
+                }
+            }
+      }
+    }
+    try {
+        if (this.getTargetElement().clientHeight == 0 ||
+            this.getTargetElement().clientWidth == 0) {
+            this.resizeObserver_ = new ResizeObserver(this.cbResize_.bind(this));
+            this.resizeObserver_.observe(this.getTargetElement())
+        }
+    } catch(e) {
+        console.log(e);
+    }
   }
 
   /**