From ebcbda1800387b0b8275b8a92541da18cf661176 Mon Sep 17 00:00:00 2001
From: Giordano Battilana <giordano.battilana@dynatrace.com>
Date: Wed, 25 Nov 2020 16:51:38 +0100
Subject: [PATCH] feat(quick-filter): Expose APIs to interact with the drawer.

---
 libs/barista-components/drawer/src/drawer.ts  |  2 +-
 .../quick-filter/src/quick-filter.html        |  2 +-
 .../quick-filter/src/quick-filter.ts          | 57 +++++++++++++++++++
 3 files changed, 59 insertions(+), 2 deletions(-)

diff --git a/libs/barista-components/drawer/src/drawer.ts b/libs/barista-components/drawer/src/drawer.ts
index 004c8b5f97..aba72a7bcf 100644
--- a/libs/barista-components/drawer/src/drawer.ts
+++ b/libs/barista-components/drawer/src/drawer.ts
@@ -124,7 +124,7 @@ export class DtDrawer implements OnInit, AfterContentChecked, OnDestroy {
 
   /**
    * Emits when the drawer open state changes. Emits a boolean value for the
-   * open sate (true for open, false for close).
+   * open state (true for open, false for close).
    * Fires after the animation is completed
    */
   @Output() readonly openChange = new EventEmitter<boolean>(true);
diff --git a/libs/barista-components/quick-filter/src/quick-filter.html b/libs/barista-components/quick-filter/src/quick-filter.html
index 4c0ca8ca71..0f3da3566d 100644
--- a/libs/barista-components/quick-filter/src/quick-filter.html
+++ b/libs/barista-components/quick-filter/src/quick-filter.html
@@ -10,7 +10,7 @@
   class="dt-quick-filter-drawer"
   [class.dt-quick-filter-detail]="_isDetailView$ | async"
 >
-  <dt-drawer #drawer opened>
+  <dt-drawer #drawer [opened]="_sidebarOpened">
     <button
       *ngIf="drawer.opened"
       class="dt-quick-filter-close"
diff --git a/libs/barista-components/quick-filter/src/quick-filter.ts b/libs/barista-components/quick-filter/src/quick-filter.ts
index 1829516570..1a99149658 100644
--- a/libs/barista-components/quick-filter/src/quick-filter.ts
+++ b/libs/barista-components/quick-filter/src/quick-filter.ts
@@ -59,6 +59,8 @@ import {
   getIsDetailView,
 } from './state/selectors';
 import { createQuickFilterStore, QuickFilterState } from './state/store';
+import { DtDrawer } from '@dynatrace/barista-components/drawer';
+import { coerceBooleanProperty } from '@angular/cdk/coercion';
 
 /** Directive that is used to place a title inside the quick filters sidebar */
 @Directive({
@@ -126,6 +128,18 @@ export class DtQuickFilter<T = any> implements AfterViewInit, OnDestroy {
     switchMap(() => this._filterField.currentFilterChanges.asObservable()),
   );
 
+  /**
+   * Emits when the drawer open state changes.
+   * Emits a boolean value for the open state (true for open, false for close).
+   * Fires after the animation is completed.
+   */
+  @Output() readonly sidebarOpenChange: Observable<
+    boolean
+  > = this._zone.onStable.pipe(
+    take(1),
+    switchMap(() => this._drawer.openChange.asObservable()),
+  );
+
   /**
    * @internal
    * Instance of the filter field that will be controlled by the quick filter
@@ -133,6 +147,26 @@ export class DtQuickFilter<T = any> implements AfterViewInit, OnDestroy {
   @ViewChild(DtFilterField, { static: true })
   _filterField: DtFilterField<T>;
 
+  /**
+   * @internal
+   * Instance of the drawer that will be controlled by the quick filter
+   */
+  @ViewChild(DtDrawer, { static: true })
+  _drawer: DtDrawer;
+
+  /**
+   * The sidebarOpened property toggles the sidebar open state.
+   * By default the sidebar is set to be opened.
+   */
+  @Input()
+  get sidebarOpened(): boolean {
+    return this._sidebarOpened;
+  }
+  set sidebarOpened(value: boolean) {
+    this._sidebarOpened = coerceBooleanProperty(value);
+  }
+  _sidebarOpened = true;
+
   /**
    * Label for the filter field (e.g. "Filter by").
    * Will be placed next to the filter icon in the filter field
@@ -253,6 +287,29 @@ export class DtQuickFilter<T = any> implements AfterViewInit, OnDestroy {
     this._destroy$.complete();
   }
 
+  /**
+   * Opens the sidebar if it is not already opened.
+   */
+  openSidebar(): void {
+    this.toggleSidebar(true);
+  }
+
+  /**
+   * Closes the sidebar if it is not already closed.
+   */
+  closeSidebar(): void {
+    this.toggleSidebar(false);
+  }
+
+  /**
+   * Toggles the open state of the sidebar.
+   * @param sidebarOpened the state the drawer should be toggled to – `'open' | 'close'`
+   * Default the opposite of the current open state.
+   */
+  toggleSidebar(sidebarOpened: boolean = !this.sidebarOpened): void {
+    this._sidebarOpened = sidebarOpened;
+  }
+
   /** @internal Closes the detail view and shows all groups */
   _goBackFromDetail(): void {
     this._store.dispatch(showGroupInDetailView(undefined));