♻️ Extract use-portal-container hook to reduce duplication (#8798)

The dedicated-container portal pattern was repeated across 6 components.
Extract it into a reusable use-portal-container hook under app.main.ui.hooks.

frontend/src/app/main/ui/components/portal.cljs

@@ -6,16 +6,12 @@
 
 (ns app.main.ui.components.portal
   (:require
-   [app.util.dom :as dom]
+   [app.main.ui.hooks :as hooks]
    [rumext.v2 :as mf]))
 
 (mf/defc portal-on-document*
   [{:keys [children]}]
-  (let [container (mf/use-memo #(dom/create-element "div"))]
-    (mf/with-effect []
-      (let [body (dom/get-body)]
-        (dom/append-child! body container)
-        #(dom/remove-child! body container)))
+  (let [container (hooks/use-portal-container)]
     (mf/portal
      (mf/html [:* children])
      container)))

frontend/src/app/main/ui/ds/tooltip/tooltip.cljs

@@ -9,6 +9,7 @@
    [app.main.style :as stl])
   (:require
    [app.common.data :as d]
+   [app.main.ui.hooks :as hooks]
    [app.util.dom :as dom]
    [app.util.keyboard :as kbd]
    [app.util.timers :as ts]
@@ -159,6 +160,8 @@
 
         tooltip-ref (mf/use-ref nil)
 
+        container (hooks/use-portal-container)
+
         id
         (d/nilv id internal-id)
 
@@ -283,4 +286,4 @@
            [:div {:class (stl/css :tooltip-content)} content]
            [:div {:class (stl/css :tooltip-arrow)
                   :id "tooltip-arrow"}]]])
-        (.-body js/document)))]))
+        container))]))

frontend/src/app/main/ui/hooks.cljs

@@ -380,6 +380,18 @@
 
     state))
 
+(defn use-portal-container
+  "Creates a dedicated div container for React portals. The container
+  is appended to document.body on mount and removed on cleanup, preventing
+  removeChild race conditions when multiple portals target the same body."
+  []
+  (let [container (mf/use-memo #(dom/create-element "div"))]
+    (mf/with-effect []
+      (let [body (dom/get-body)]
+        (dom/append-child! body container)
+        #(dom/remove-child! body container)))
+    container))
+
 (defn use-dynamic-grid-item-width
   ([] (use-dynamic-grid-item-width nil))
   ([itemsize]

frontend/src/app/main/ui/modal.cljs

@@ -10,6 +10,7 @@
    [app.common.data.macros :as dm]
    [app.main.data.modal :as modal]
    [app.main.store :as st]
+   [app.main.ui.hooks :as hooks]
    [app.util.dom :as dom]
    [app.util.keyboard :as k]
    [goog.events :as events]
@@ -83,7 +84,8 @@
 (mf/defc modal-container*
   {::mf/props :obj}
   []
-  (when-let [modal (mf/deref ref:modal)]
-    (mf/portal
-     (mf/html [:> modal-wrapper* {:data modal :key (dm/str (:id modal))}])
-     (dom/get-body))))
+  (let [container (hooks/use-portal-container)]
+    (when-let [modal (mf/deref ref:modal)]
+      (mf/portal
+       (mf/html [:> modal-wrapper* {:data modal :key (dm/str (:id modal))}])
+       container))))

frontend/src/app/main/ui/workspace/tokens/management/context_menu.cljs

@@ -20,6 +20,7 @@
    [app.main.store :as st]
    [app.main.ui.components.dropdown :refer [dropdown]]
    [app.main.ui.ds.foundations.assets.icon :refer [icon*] :as i]
+   [app.main.ui.hooks :as hooks]
    [app.util.dom :as dom]
    [app.util.i18n :refer [tr]]
    [app.util.timers :as timers]
@@ -515,7 +516,8 @@
         dropdown-direction  (deref dropdown-direction*)
         dropdown-direction-change* (mf/use-ref 0)
         top                 (+ (get-in mdata [:position :y]) 5)
-        left                (+ (get-in mdata [:position :x]) 5)]
+        left                (+ (get-in mdata [:position :x]) 5)
+        container           (hooks/use-portal-container)]
 
     (mf/use-effect
      (mf/deps is-open?)
@@ -554,4 +556,4 @@
                 :on-context-menu prevent-default}
           (when mdata
             [:& token-context-menu-tree (assoc mdata :width @width :on-delete-token on-delete-token)])]])
-       (dom/get-body)))))
+       container))))

frontend/src/app/main/ui/workspace/tokens/management/node_context_menu.cljs

@@ -6,6 +6,7 @@
    [app.main.refs :as refs]
    [app.main.store :as st]
    [app.main.ui.components.dropdown :refer [dropdown]]
+   [app.main.ui.hooks :as hooks]
    [app.util.dom :as dom]
    [app.util.i18n :refer [tr]]
    [okulary.core :as l]
@@ -35,6 +36,7 @@
         dropdown-direction-change* (mf/use-ref 0)
         top                 (+ (get-in mdata [:position :y]) 5)
         left                (+ (get-in mdata [:position :x]) 5)
+        container           (hooks/use-portal-container)
 
         delete-node          (mf/use-fn
                               (mf/deps mdata)
@@ -80,4 +82,4 @@
                         :type "button"
                         :on-click delete-node}
                (tr "labels.delete")]]])]])
-       (dom/get-body)))))
+       container))))

frontend/src/app/main/ui/workspace/tokens/themes/theme_selector.cljs

@@ -17,6 +17,7 @@
    [app.main.ui.components.dropdown :refer [dropdown]]
    [app.main.ui.ds.foundations.assets.icon :refer [icon*] :as i]
    [app.main.ui.ds.foundations.typography.text :refer [text*]]
+   [app.main.ui.hooks :as hooks]
    [app.util.dom :as dom]
    [app.util.i18n :refer [tr]]
    [cuerdas.core :as str]
@@ -111,7 +112,9 @@
                (let [rect (dom/get-bounding-rect node)]
                  (swap! state* assoc
                         :is-open? true
-                        :rect rect))))))]
+                        :rect rect))))))
+
+        container (hooks/use-portal-container)]
 
     [:div {:on-click on-open-dropdown
            :disabled (not can-edit?)
@@ -140,4 +143,4 @@
            [:& theme-options {:active-theme-paths active-theme-paths
                               :themes themes
                               :on-close on-close-dropdown}]]])
-        (dom/get-body)))]))
+        container))]))