[CL-707] Migrate CL codebase to signals (#15340)

libs/components/src/disclosure/disclosure-trigger-for.directive.ts

@@ -1,6 +1,6 @@
 // FIXME: Update this file to be type safe and remove this and next line
 // @ts-strict-ignore
-import { Directive, HostBinding, HostListener, Input } from "@angular/core";
+import { Directive, HostBinding, HostListener, input } from "@angular/core";
 
 import { DisclosureComponent } from "./disclosure.component";
 
@@ -12,17 +12,17 @@ export class DisclosureTriggerForDirective {
   /**
    * Accepts template reference for a bit-disclosure component instance
    */
-  @Input("bitDisclosureTriggerFor") disclosure: DisclosureComponent;
+  readonly disclosure = input<DisclosureComponent>(undefined, { alias: "bitDisclosureTriggerFor" });
 
   @HostBinding("attr.aria-expanded") get ariaExpanded() {
-    return this.disclosure.open;
+    return this.disclosure().open;
   }
 
   @HostBinding("attr.aria-controls") get ariaControls() {
-    return this.disclosure.id;
+    return this.disclosure().id;
   }
 
   @HostListener("click") click() {
-    this.disclosure.open = !this.disclosure.open;
+    this.disclosure().open = !this.disclosure().open;
   }
 }

libs/components/src/disclosure/disclosure.component.ts

@@ -48,6 +48,8 @@ export class DisclosureComponent {
   /**
    * Optionally init the disclosure in its opened state
    */
+  // TODO: Skipped for signal migration because:
+  //  Accessor inputs cannot be migrated as they are too complex.
   @Input({ transform: booleanAttribute }) set open(isOpen: boolean) {
     this._open = isOpen;
     this.openChange.emit(isOpen);