test: stabilize OpenUI5andWebCPopups

Author: dimovpetar

packages/main/cypress/specs/OpenUI5andWebCPopups.cy.tsx

@@ -215,6 +215,15 @@ function openUI5Popover(win, opener) {
 	});
 }
 
+function isOpenUI5DialogOpen($dialog) {
+	expect(OpenUI5Element).to.exist;
+
+	const dialogInstance = OpenUI5Element.getElementById($dialog.attr("id"));
+
+	expect(dialogInstance).to.exist
+	expect(dialogInstance.isOpen()).to.be.true;
+};
+
 describe("ui5 and web components integration", () => {
 	beforeEach(() => {
 		// mount the components
@@ -697,14 +706,7 @@ describe("ui5 and web components integration", () => {
 
 		cy.get("#openUI5DialogFinal")
 			.should('be.visible')
-			.should(($dialog) => {
-				expect(OpenUI5Element).to.exist;
-
-				const dialogInstance = OpenUI5Element.getElementById($dialog.attr("id"));
-
-				expect(dialogInstance).to.exist
-				expect(dialogInstance.isOpen()).to.be.true;
-			});
+			.should(isOpenUI5DialogOpen);
 
 		cy.get("#openUI5Dialog1")
 			.should('not.be.visible');
@@ -722,7 +724,8 @@ describe("ui5 and web components integration", () => {
 			.should('not.exist');
 
 		cy.get("#openUI5DialogWithButtons")
-			.should('be.visible');
+			.should('be.visible')
+			.should(isOpenUI5DialogOpen);
 
 		cy.realPress("Escape");
 

packages/main/src/Dialog.ts

@@ -329,10 +329,7 @@ class Dialog extends Popup {
 
 	_show() {
 		super._show();
-		requestAnimationFrame(() => {
-			this._updateMediaRange();
-			this._center();
-		});
+		requestAnimationFrame(this._center.bind(this));
 	}
 
 	onBeforeRendering() {

packages/main/src/Popup.ts

@@ -604,6 +604,8 @@ abstract class Popup extends UI5Element {
 		if (this.isConnected) {
 			this.setAttribute("popover", "manual");
 			this.showPopover();
+
+			requestAnimationFrame(this._updateMediaRange.bind(this));
 		}
 	}