Allow onBeforeElUpdated to return new fromEl

patrick-steele-idem · Jun 19, 2024 · 6da3958 · 6da3958
1 parent e98d69e
commit 6da3958
Show file tree

Hide file tree

Showing 6 changed files with 21 additions and 6 deletions.
diff --git a/dist/morphdom-esm.js b/dist/morphdom-esm.js
@@ -491,8 +491,11 @@ function morphdomFactory(morphAttrs) {
 
       if (!childrenOnly) {
         // optional
-        if (onBeforeElUpdated(fromEl, toEl) === false) {
+        var beforeUpdateResult = onBeforeElUpdated(fromEl, toEl);
+        if (beforeUpdateResult === false) {
           return;
+        } else if (beforeUpdateResult instanceof HTMLElement) {
+          fromEl = beforeUpdateResult;
         }
 
         // update attributes on original DOM element first

diff --git a/dist/morphdom-factory.js b/dist/morphdom-factory.js
@@ -429,8 +429,11 @@ function morphdomFactory(morphAttrs) {
 
       if (!childrenOnly) {
         // optional
-        if (onBeforeElUpdated(fromEl, toEl) === false) {
+        var beforeUpdateResult = onBeforeElUpdated(fromEl, toEl);
+        if (beforeUpdateResult === false) {
           return;
+        } else if (beforeUpdateResult instanceof HTMLElement) {
+          fromEl = beforeUpdateResult;
         }
 
         // update attributes on original DOM element first

diff --git a/dist/morphdom-umd.js b/dist/morphdom-umd.js
@@ -497,8 +497,11 @@
 
           if (!childrenOnly) {
             // optional
-            if (onBeforeElUpdated(fromEl, toEl) === false) {
+            var beforeUpdateResult = onBeforeElUpdated(fromEl, toEl);
+            if (beforeUpdateResult === false) {
               return;
+            } else if (beforeUpdateResult instanceof HTMLElement) {
+              fromEl = beforeUpdateResult;
             }
 
             // update attributes on original DOM element first

diff --git a/dist/morphdom-umd.min.js b/dist/morphdom-umd.min.js
diff --git a/dist/morphdom.js b/dist/morphdom.js
@@ -493,8 +493,11 @@ function morphdomFactory(morphAttrs) {
 
       if (!childrenOnly) {
         // optional
-        if (onBeforeElUpdated(fromEl, toEl) === false) {
+        var beforeUpdateResult = onBeforeElUpdated(fromEl, toEl);
+        if (beforeUpdateResult === false) {
           return;
+        } else if (beforeUpdateResult instanceof HTMLElement) {
+          fromEl = beforeUpdateResult;
         }
 
         // update attributes on original DOM element first

diff --git a/src/morphdom.js b/src/morphdom.js
@@ -207,8 +207,11 @@ export default function morphdomFactory(morphAttrs) {
 
       if (!childrenOnly) {
         // optional
-        if (onBeforeElUpdated(fromEl, toEl) === false) {
+        var beforeUpdateResult = onBeforeElUpdated(fromEl, toEl);
+        if (beforeUpdateResult === false) {
           return;
+        } else if (beforeUpdateResult instanceof HTMLElement) {
+          fromEl = beforeUpdateResult;
         }
 
         // update attributes on original DOM element first