Trigger re-measure after updating ElementResizeListeners. (#11912)

Removing ElementResizeListeners from an element makes it unmeasurable
and clears any saved measured values. Adding the listeners back makes
the element measurable again but doesn't add it to measuring queue.
Measuring needs to happen or any updates to expanded components within a
layout (without changes that would trigger full re-measuring of the
layout itself) lead to broken expand size calculations with any fixed
size elements assumed to have no size.

Fixes #10734

1 files changed, 29 insertions, 0 deletions

diff --git a/uitest/src/test/java/com/vaadin/tests/layouts/UpdateComponentWithinExpandRatioTest.java b/uitest/src/test/java/com/vaadin/tests/layouts/UpdateComponentWithinExpandRatioTest.java
new file mode 100644
index 0000000000..5c28799ba7
--- /dev/null
+++ b/uitest/src/test/java/com/vaadin/tests/layouts/UpdateComponentWithinExpandRatioTest.java
@@ -0,0 +1,29 @@
+package com.vaadin.tests.layouts;
+
+import static org.junit.Assert.assertEquals;
+
+import org.junit.Test;
+
+import com.vaadin.testbench.elements.ButtonElement;
+import com.vaadin.testbench.elements.ProgressBarElement;
+import com.vaadin.tests.tb3.MultiBrowserTest;
+
+public class UpdateComponentWithinExpandRatioTest extends MultiBrowserTest {
+
+    @Test
+    public void updateProgressShouldNotMoveButton() {
+        openTestURL();
+        ProgressBarElement pb = $(ProgressBarElement.class).first();
+        ButtonElement button = $(ButtonElement.class).first();
+
+        int initialX = button.getLocation().getX();
+        int initialWidth = pb.getSize().getWidth();
+
+        button.click();
+
+        assertEquals("Button's position changed unexpectedly", initialX,
+                button.getLocation().getX());
+        assertEquals("ProgressBar's width changed unexpectedly", initialWidth,
+                pb.getSize().getWidth());
+    }
+}