change aria-selected to ariaSelected (microsoft#7151)

Author: PankajBhojwani

source/nodejs/adaptivecards-controls/src/dropdown.ts

@@ -33,7 +33,7 @@ export class DropDownItem {
             this._element.className = "ms-ctrl ms-ctrl-dropdown-item";
             this._element.innerText = this.value;
             this._element.setAttribute("role", "menuitem");
-            this._element.setAttribute("aria-selected", "false");
+            this._element.setAttribute("aria-current", "false");
             this._element.onmouseup = (e) => { this.click(); };
             this._element.onkeydown = (e) => {
                 if (e.key === Constants.keys.enter) {
@@ -164,12 +164,12 @@ export class DropDownPopupControl extends PopupControl {
         if (index >= 0 && index < this._renderedItems.length) {
             // deselect previous item (if one was selected)
             if (this._selectedIndex >= 0 && this._selectedIndex < this._renderedItems.length) {
-                this._renderedItems[this._selectedIndex].setAttribute("aria-selected", "false");
+                this._renderedItems[this._selectedIndex].setAttribute("aria-current", "false");
             }
 
             // select new item
             this._renderedItems[index].focus();
-            this._renderedItems[index].setAttribute("aria-selected", "true");
+            this._renderedItems[index].setAttribute("aria-current", "true");
 
             this._selectedIndex = index;
         }

source/nodejs/adaptivecards-designer/src/base-tree-item.ts

@@ -33,7 +33,7 @@ export abstract class BaseTreeItem extends DraggableElement {
                 this._treeItemElement.classList.remove("selected");
             }
 
-            this._rootElement.setAttribute("aria-selected", this._isSelected.toString());
+            this._rootElement.setAttribute("aria-current", this._isSelected.toString());
 
             this.selectedChanged(scrollIntoView);
         }
@@ -91,7 +91,7 @@ export abstract class BaseTreeItem extends DraggableElement {
         this._rootElement.style.listStyleType = "none";
         this._rootElement.setAttribute("aria-labelledby", labelId);
         this._rootElement.setAttribute("aria-level", this._level.toString());
-        this._rootElement.setAttribute("aria-selected", this._isSelected.toString());
+        this._rootElement.setAttribute("aria-current", this._isSelected.toString());
         this._rootElement.tabIndex = 0;
 
         if (hasChildren) {

source/nodejs/adaptivecards/src/controls/menu-item.ts

@@ -57,7 +57,7 @@ export class MenuItem {
                 this._element.setAttribute("aria-disabled", "true");
             }
 
-            this._element.setAttribute("aria-selected", "false");
+            this._element.setAttribute("aria-current", "false");
             this._element.onmouseup = (_e) => {
                 this.click();
             };