🐛 Add fixedWhenScrolling to API (#10218)

frontend/src/app/plugins/shape.cljs

@@ -399,6 +399,22 @@
                   :else
                   (st/emit! (dwsh/update-shapes [id] #(assoc % :constraints-v value))))))}
 
+           :fixedWhenScrolling
+           {:this true
+            :get #(-> % u/proxy->shape :fixed-scroll boolean)
+            :set
+            (fn [self value]
+              (cond
+                (not (boolean? value))
+                (u/not-valid plugin-id :fixedWhenScrolling value)
+
+                (not (r/check-permission plugin-id "content:write"))
+                (u/not-valid plugin-id :fixedWhenScrolling "Plugin doesn't have 'content:write' permission")
+
+                :else
+                (let [id (obj/get self "$id")]
+                  (st/emit! (dwsh/update-shapes [id] #(assoc % :fixed-scroll value))))))}
+
            :borderRadius
            {:this true
             :get #(-> % u/proxy->shape :r1)

frontend/test/frontend_tests/plugins/context_shapes_test.cljs

@@ -132,6 +132,15 @@
             (t/is (= (.-constraintsVertical shape) "bottom"))
             (t/is (= (get-in @store (get-shape-path :constraints-v)) :bottom)))
 
+          (t/testing " - fixedWhenScrolling"
+            (set! (.-fixedWhenScrolling shape) true)
+            (t/is (= (.-fixedWhenScrolling shape) true))
+            (t/is (= (get-in @store (get-shape-path :fixed-scroll)) true))
+
+            (set! (.-fixedWhenScrolling shape) false)
+            (t/is (= (.-fixedWhenScrolling shape) false))
+            (t/is (= (get-in @store (get-shape-path :fixed-scroll)) false)))
+
           (t/testing " - borderRadius"
             (set! (.-borderRadius shape) 10)
             (t/is (= (.-borderRadius shape) 10))

plugins/CHANGELOG.md

@@ -13,6 +13,7 @@
 - **plugin-types**: Added `textBounds` property for text shapes
 - **plugin-types**: Added flag `throwValidationErrors` to enable exceptions on validation
 - **plugin-types**: Fix missing `webp` export format in `Export.type`
+- **plugin-types**: Added `fixedWhenScrolling` property for shapes
 
 ## 1.4.2 (2026-01-21)
 

plugins/libs/plugin-types/index.d.ts

@@ -3669,6 +3669,11 @@ export interface ShapeBase extends PluginData {
    */
   constraintsVertical: 'top' | 'bottom' | 'topbottom' | 'center' | 'scale';
 
+  /**
+   * Indicates whether the shape stays fixed in place while scrolling.
+   */
+  fixedWhenScrolling: boolean;
+
   /**
    * The border radius of the shape.
    */