[3899] Fix nodesDraggable staying false

Bug: #3899 Signed-off-by: Michaël Charfadi <[email protected]>
eclipse-sirius · Aug 28, 2024 · 1abddb8 · 1abddb8
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diff --git a/CHANGELOG.adoc b/CHANGELOG.adoc
@@ -76,6 +76,7 @@ As a result, the following maven modules have been deleted: `sirius-web-sample-a
 - https://github.com/eclipse-sirius/sirius-web/issues/3851[#3851] [trees] Fix an issue where the tree filters menu items were not displayed anymore after a click on the filters menu.
 - https://github.com/eclipse-sirius/sirius-web/issues/3849[#3849] [form] Fix the tree representation in form support the display of the same referenced element many times in the tree.
 - https://github.com/eclipse-sirius/sirius-web/issues/3878[#3878] [diagram] Unmount ReactFlowProvider after layout
+- https://github.com/eclipse-sirius/sirius-web/issues/3899[#3899] [diagram] Fix an issue when using alt-tab shortcut and trying to drag a node afterwards
 
 === New Features
 

diff --git a/packages/diagrams/frontend/sirius-components-diagrams/src/renderer/drag/useNodesDraggable.ts b/packages/diagrams/frontend/sirius-components-diagrams/src/renderer/drag/useNodesDraggable.ts
@@ -34,9 +34,15 @@ export const useNodesDraggable = (): UseNodesDraggableValue => {
     };
     document.addEventListener('keyup', keyupListener);
 
+    const onBlurListener = () => {
+      setState((prevState) => ({ ...prevState, nodesDraggable: true }));
+    };
+    document.addEventListener('blur', onBlurListener);
+
     return () => {
       document.removeEventListener('keydown', keydownListener);
       document.removeEventListener('keyup', keyupListener);
+      document.removeEventListener('blur', onBlurListener);
     };
   }, []);