From aec5da15dfcaccda7ecac3d927170da0de4fac96 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Adina=20=C8=9Aeudan?= <adina.teudan.ext@knecon.com>
Date: Mon, 17 Jun 2024 12:18:25 +0300
Subject: [PATCH] Simple popup filter

---
 src/lib/filtering/index.ts                    |  1 +
 .../simple-popup-filter.component.html        | 53 +++++++++++++++
 .../simple-popup-filter.component.scss        | 24 +++++++
 .../simple-popup-filter.component.ts          | 67 +++++++++++++++++++
 4 files changed, 145 insertions(+)
 create mode 100644 src/lib/filtering/simple-popup-filter/simple-popup-filter.component.html
 create mode 100644 src/lib/filtering/simple-popup-filter/simple-popup-filter.component.scss
 create mode 100644 src/lib/filtering/simple-popup-filter/simple-popup-filter.component.ts

diff --git a/src/lib/filtering/index.ts b/src/lib/filtering/index.ts
index 75e5952..6e2c92f 100644
--- a/src/lib/filtering/index.ts
+++ b/src/lib/filtering/index.ts
@@ -11,3 +11,4 @@ export * from './models/nested-filter.model';
 
 export * from './popup-filter/popup-filter.component';
 export * from './quick-filters/quick-filters.component';
+export * from './simple-popup-filter/simple-popup-filter.component';
diff --git a/src/lib/filtering/simple-popup-filter/simple-popup-filter.component.html b/src/lib/filtering/simple-popup-filter/simple-popup-filter.component.html
new file mode 100644
index 0000000..4ff55ee
--- /dev/null
+++ b/src/lib/filtering/simple-popup-filter/simple-popup-filter.component.html
@@ -0,0 +1,53 @@
+<ng-container *ngIf="icon">
+    <iqser-icon-button
+        [attr.aria-expanded]="expanded()"
+        [class.disabled]="disabled()"
+        [disabled]="disabled()"
+        [icon]="icon()"
+        [label]="label()"
+        [matMenuTriggerFor]="filterMenu"
+        [showDot]="hasActiveFilters()"
+    ></iqser-icon-button>
+</ng-container>
+
+<ng-container *ngIf="!icon">
+    <iqser-chevron-button
+        [attr.aria-expanded]="expanded()"
+        [class.disabled]="disabled"
+        [disabled]="disabled()"
+        [label]="label()"
+        [matMenuTriggerFor]="filterMenu"
+        [showDot]="hasActiveFilters()"
+    ></iqser-chevron-button>
+</ng-container>
+
+<mat-menu #filterMenu="matMenu" (closed)="expanded.set(false)" xPosition="before">
+    <div iqserStopPropagation>
+        <ng-template matMenuContent>
+            <div class="input-wrapper">
+                <iqser-input-with-action
+                    [value]="searchValue()"
+                    (valueChange)="searchValue.set($event)"
+                    [placeholder]="filterPlaceholder()"
+                    [width]="'full'"
+                ></iqser-input-with-action>
+            </div>
+
+            <div class="filter-menu-header">
+                <div translate="filter-menu.label" class="all-caps-label"></div>
+                <div class="actions">
+                    <div (click)="_selectAll()" class="all-caps-label primary pointer" iqserStopPropagation translate="actions.all"></div>
+                    <div (click)="_clear()" class="all-caps-label primary pointer" iqserStopPropagation translate="actions.none"></div>
+                </div>
+            </div>
+
+            <div class="filter-content">
+                <div mat-menu-item *ngFor="let option of displayedOptions()" (click)="_filterCheckboxClicked(option)">
+                    <mat-checkbox [checked]="selectedOptions().includes(option)" class="filter-menu-checkbox">
+                        {{ option.label }}
+                    </mat-checkbox>
+                </div>
+            </div>
+        </ng-template>
+    </div>
+</mat-menu>
diff --git a/src/lib/filtering/simple-popup-filter/simple-popup-filter.component.scss b/src/lib/filtering/simple-popup-filter/simple-popup-filter.component.scss
new file mode 100644
index 0000000..1ca41d8
--- /dev/null
+++ b/src/lib/filtering/simple-popup-filter/simple-popup-filter.component.scss
@@ -0,0 +1,24 @@
+@use 'common-mixins';
+
+.filter-menu-options,
+.filter-menu-header {
+    display: flex;
+    justify-content: space-between;
+    padding: 8px 16px 16px 16px;
+    min-width: var(--filter-card-min-width);
+
+    .actions {
+        display: flex;
+        gap: 8px;
+    }
+}
+
+.input-wrapper {
+    padding: 0 8px 8px 8px;
+}
+
+.filter-content {
+    max-height: 300px;
+    overflow: auto;
+    @include common-mixins.scroll-bar;
+}
diff --git a/src/lib/filtering/simple-popup-filter/simple-popup-filter.component.ts b/src/lib/filtering/simple-popup-filter/simple-popup-filter.component.ts
new file mode 100644
index 0000000..765990b
--- /dev/null
+++ b/src/lib/filtering/simple-popup-filter/simple-popup-filter.component.ts
@@ -0,0 +1,67 @@
+import { Component, computed, input, output, signal, untracked } from '@angular/core';
+import { MatMenuModule } from '@angular/material/menu';
+import { CommonModule } from '@angular/common';
+import { TranslateModule } from '@ngx-translate/core';
+import { MatCheckbox } from '@angular/material/checkbox';
+import { takeUntilDestroyed, toObservable } from '@angular/core/rxjs-interop';
+import { ChevronButtonComponent, IconButtonComponent } from '../../buttons';
+import { StopPropagationDirective } from '../../directives';
+import { InputWithActionComponent } from '../../inputs';
+
+@Component({
+    selector: 'iqser-simple-popup-filter',
+    templateUrl: './simple-popup-filter.component.html',
+    styleUrls: ['./simple-popup-filter.component.scss'],
+    standalone: true,
+    imports: [
+        CommonModule,
+        MatMenuModule,
+        IconButtonComponent,
+        ChevronButtonComponent,
+        StopPropagationDirective,
+        InputWithActionComponent,
+        TranslateModule,
+        MatCheckbox,
+        IconButtonComponent,
+        ChevronButtonComponent,
+    ],
+})
+export class SimplePopupFilterComponent<T extends { label: string }> {
+    options = input.required<T[]>();
+    icon = input<string>();
+    label = input<string>();
+    filterPlaceholder = input.required<string>();
+    disabled = input<boolean>(false);
+    selectionChanged = output<T[]>();
+
+    readonly expanded = signal(false);
+    readonly selectedOptions = signal<T[]>([]);
+    readonly hasActiveFilters = computed(() => this.selectedOptions().length > 0);
+    readonly searchValue = signal('');
+    readonly displayedOptions = computed(() =>
+        this.options().filter(option => option.label.toLowerCase().includes(this.searchValue().toLowerCase())),
+    );
+
+    constructor() {
+        toObservable(this.selectedOptions)
+            .pipe(takeUntilDestroyed())
+            // eslint-disable-next-line rxjs/no-ignored-subscription
+            .subscribe(() => this.selectionChanged.emit(this.selectedOptions()));
+    }
+
+    protected _selectAll(): void {
+        this.selectedOptions.set(untracked(this.options));
+    }
+
+    protected _clear(): void {
+        this.selectedOptions.set([]);
+    }
+
+    protected _filterCheckboxClicked(option: T): void {
+        if (this.selectedOptions().includes(option)) {
+            this.selectedOptions.set(this.selectedOptions().filter(selectedOption => selectedOption !== option));
+        } else {
+            this.selectedOptions.set([...this.selectedOptions(), option]);
+        }
+    }
+}