feat(appui-tabs): add support for left/right tab action buttons and content tab action APIs

ts_web/elements/00group-appui/dees-appui/dees-appui.ts

@@ -143,6 +143,12 @@ export class DeesAppui extends DeesElement {
   @property({ type: Object })
   accessor maincontentSelectedTab: interfaces.IMenuItem | undefined = undefined;
 
+  @property({ type: Array })
+  accessor contentTabActionsLeft: interfaces.ITabAction[] = [];
+
+  @property({ type: Array })
+  accessor contentTabActionsRight: interfaces.ITabAction[] = [];
+
   // References to child components
   @state()
   accessor appbar: DeesAppuiBar | undefined = undefined;
@@ -306,6 +312,8 @@ export class DeesAppui extends DeesElement {
           .showTabs=${this.maincontentTabsVisible}
           .tabsAutoHide=${this.contentTabsAutoHide}
           .tabsAutoHideThreshold=${this.contentTabsAutoHideThreshold}
+          .tabActionsLeft=${this.contentTabActionsLeft}
+          .tabActionsRight=${this.contentTabActionsRight}
           @tab-select=${(e: CustomEvent) => this.handleContentTabSelect(e)}
           @tab-close=${(e: CustomEvent) => this.handleContentTabClose(e)}
         >
@@ -699,6 +707,20 @@ export class DeesAppui extends DeesElement {
     return this.maincontentSelectedTab;
   }
 
+  /**
+   * Set content tab action buttons on the left side
+   */
+  public setContentTabActionsLeft(actions: interfaces.ITabAction[]): void {
+    this.contentTabActionsLeft = [...actions];
+  }
+
+  /**
+   * Set content tab action buttons on the right side
+   */
+  public setContentTabActionsRight(actions: interfaces.ITabAction[]): void {
+    this.contentTabActionsRight = [...actions];
+  }
+
   // ==========================================
   // PROGRAMMATIC API: ACTIVITY LOG
   // ==========================================