Add API to detect if GridMultiSelect select-all checkbox is checked (#12086)

3 files changed, 27 insertions, 9 deletions

diff --git a/server/src/main/java/com/vaadin/ui/components/grid/GridMultiSelect.java b/server/src/main/java/com/vaadin/ui/components/grid/GridMultiSelect.java
index 2e98230a6f..e376f72711 100644
--- a/server/src/main/java/com/vaadin/ui/components/grid/GridMultiSelect.java
+++ b/server/src/main/java/com/vaadin/ui/components/grid/GridMultiSelect.java
@@ -188,6 +188,20 @@ public class GridMultiSelect<T> implements MultiSelect<T> {
     }
 
     /**
+     * Returns whether all items are selected or not.
+     * <p>
+     * This is only {@code true} if user has selected all rows with the select
+     * all checkbox on client side, or if {@link #selectAll()} has been used
+     * from server side.
+     *
+     * @return {@code true} if all selected, {@code false} if not
+     * @since 8.12.0
+     */
+    public boolean isAllSelected() {
+        return model.isAllSelected();
+    }
+
+    /**
      * Checks if the user is allowed to change the selection.
      * <p>
      * The check is done only for the client side actions. It doesn't affect
diff --git a/server/src/main/java/com/vaadin/ui/components/grid/MultiSelectionModel.java b/server/src/main/java/com/vaadin/ui/components/grid/MultiSelectionModel.java
index 305a4fbaf9..35f948ca46 100644
--- a/server/src/main/java/com/vaadin/ui/components/grid/MultiSelectionModel.java
+++ b/server/src/main/java/com/vaadin/ui/components/grid/MultiSelectionModel.java
@@ -135,4 +135,16 @@ public interface MultiSelectionModel<T>
      * @see #setSelectAllCheckBoxVisibility(SelectAllCheckBoxVisibility)
      */
     public boolean isSelectAllCheckBoxVisible();
+
+    /**
+     * Returns whether all items are selected or not.
+     * <p>
+     * This is only {@code true} if user has selected all rows with the select
+     * all checkbox on client side, or if {@link #selectAll()} has been used
+     * from server side.
+     *
+     * @return {@code true} if all selected, {@code false} if not
+     * @since 8.12.0
+     */
+    boolean isAllSelected();
 }
diff --git a/server/src/main/java/com/vaadin/ui/components/grid/MultiSelectionModelImpl.java b/server/src/main/java/com/vaadin/ui/components/grid/MultiSelectionModelImpl.java
index 0ef1d1a5f7..7d8c6d7d85 100644
--- a/server/src/main/java/com/vaadin/ui/components/grid/MultiSelectionModelImpl.java
+++ b/server/src/main/java/com/vaadin/ui/components/grid/MultiSelectionModelImpl.java
@@ -131,15 +131,7 @@ public class MultiSelectionModelImpl<T> extends AbstractSelectionModel<T>
         return getState(false).selectAllCheckBoxVisible;
     }
 
-    /**
-     * Returns whether all items are selected or not.
-     * <p>
-     * This is only {@code true} if user has selected all rows with the select
-     * all checkbox on client side, or if {@link #selectAll()} has been used
-     * from server side.
-     *
-     * @return {@code true} if all selected, {@code false} if not
-     */
+    @Override
     public boolean isAllSelected() {
         return getState(false).allSelected;
     }