fix(navbar): error when set mcTooltipDisabled on mc-navbar-item (#UIM-882) (#829)

Author: lskramarov

packages/mosaic/core/pop-up/pop-up-trigger.ts

@@ -60,7 +60,7 @@ export abstract class McPopUpTrigger<T> {
     // tslint:disable-next-line:naming-convention orthodox-getter-and-setter
     protected _content: string | TemplateRef<any>;
     // tslint:disable-next-line:naming-convention orthodox-getter-and-setter
-    protected _disabled: boolean = false;
+    protected _disabled: boolean;
     // tslint:disable-next-line:naming-convention orthodox-getter-and-setter
     protected _customClass: string;
 

packages/mosaic/navbar/navbar-item.component.ts

@@ -385,9 +385,17 @@ export class McNavbarItem extends McTooltipTrigger {
     }
 
     get disabled(): boolean {
+        if (this._disabled !== undefined) {
+            return this._disabled;
+        }
+
         return (!this.collapsed && !this.hasCroppedText) || !this.title;
     }
 
+    set disabled(value) {
+        this._disabled = coerceBooleanProperty(value);
+    }
+
     get hasDropDownTrigger(): boolean {
         return !!this.dropdownTrigger;
     }

tools/public_api_guard/mosaic/navbar.api.md

@@ -202,6 +202,7 @@ export class McNavbarItem extends McTooltipTrigger {
     get croppedText(): string;
     // (undocumented)
     get disabled(): boolean;
+    set disabled(value: boolean);
     // (undocumented)
     getTitleWidth(): number;
     // (undocumented)