feat(InterpolationBinding): add method to update one-time children

related to #301
aurelia · Feb 10, 2016 · 243aa75 · 243aa75
1 parent bc0aa92
commit 243aa75
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diff --git a/src/interpolation-binding-expression.js b/src/interpolation-binding-expression.js
@@ -69,6 +69,15 @@ export class InterpolationBinding {
     }
   }
 
+  updateOneTimeBindings() {
+    for (let i = 1, ii = this.parts.length; i < ii; i += 2) {
+      let child = this[`childBinding${i}`];
+      if (child.mode === bindingMode.oneTime) {
+        child.call();
+      }
+    }
+  }
+
   bind(source) {
     if (this.isBound) {
       if (this.source === source) {

diff --git a/test/interpolation-binding.spec.js b/test/interpolation-binding.spec.js
@@ -169,6 +169,10 @@ describe('InterpolationBinding', () => {
       expect(observer1.hasSubscribers()).toBe(false);
       expect(binding.source).toBe(null);
     });
+
+    it('has an updateOneTimeBindings method', () => {
+      binding.updateOneTimeBindings();
+    });
   });
 
   describe('repeated expressions', () => {