Add virtual scrolling for categories

StorageService is now required in BaseListView.
Adds a dialog to create categories

client/src/app/site/base/base-list-view.ts

@@ -57,7 +57,7 @@ export abstract class BaseListViewComponent<V extends BaseViewModel> extends Bas
         titleService: Title,
         translate: TranslateService,
         matSnackBar: MatSnackBar,
-        protected storage?: StorageService
+        protected storage: StorageService
     ) {
         super(titleService, translate, matSnackBar);
         this.selectedRows = [];

client/src/app/site/mediafiles/components/mediafile-list/mediafile-list.component.ts

@@ -20,6 +20,7 @@ import { PblNgridDataMatrixRow } from '@pebula/ngrid/target-events';
 import { BehaviorSubject, Observable, Subscription } from 'rxjs';
 
 import { OperatorService } from 'app/core/core-services/operator.service';
+import { StorageService } from 'app/core/core-services/storage.service';
 import { MediafileRepositoryService } from 'app/core/repositories/mediafiles/mediafile-repository.service';
 import { GroupRepositoryService } from 'app/core/repositories/users/group-repository.service';
 import { MediaManageService } from 'app/core/ui-services/media-manage.service';
@@ -185,6 +186,7 @@ export class MediafileListComponent extends BaseListViewComponent<ViewMediafile>
         titleService: Title,
         protected translate: TranslateService,
         matSnackBar: MatSnackBar,
+        storage: StorageService,
         private route: ActivatedRoute,
         private router: Router,
         public repo: MediafileRepositoryService,
@@ -199,7 +201,7 @@ export class MediafileListComponent extends BaseListViewComponent<ViewMediafile>
         private groupRepo: GroupRepositoryService,
         private cd: ChangeDetectorRef
     ) {
-        super(titleService, translate, matSnackBar);
+        super(titleService, translate, matSnackBar, storage);
         this.canMultiSelect = true;
 
         this.newDirectoryForm = this.formBuilder.group({

client/src/app/site/motions/modules/category/components/category-list/category-list.component.html

@@ -12,10 +12,43 @@
     </div>
 </os-head-bar>
 
-<!-- Creating a new category -->
-<mat-card class="os-card" *ngIf="isCreatingNewCategory">
-    <mat-card-title>New category</mat-card-title>
-    <mat-card-content>
+<os-list-view-table
+    [repo]="repo"
+    [allowProjector]="false"
+    [columns]="tableColumnDefinition"
+    [filterProps]="filterProps"
+    listStorageKey="category"
+    (dataSourceChange)="onDataSourceChange($event)"
+>
+    <!-- Title -->
+    <div *pblNgridCellDef="'title'; row as category; rowContext as rowContext" class="cell-slot fill">
+        <a
+            class="detail-link"
+            [routerLink]="category.id"
+            (click)="saveScrollIndex('category', rowContext.identity)"
+        ></a>
+        <div [style.margin-left]="getMargin(category)">{{ category.prefixedName }}</div>
+    </div>
+
+    <!-- Amount -->
+    <div *pblNgridCellDef="'amount'; row as category" class="cell-slot fill">
+        <span class="os-amount-chip">{{ category.motions.length }}</span>
+    </div>
+</os-list-view-table>
+
+<mat-menu #categoryMenu="matMenu">
+    <button mat-menu-item [routerLink]="'./sort'">
+        <mat-icon>sort</mat-icon>
+        <span translate>Sort categories</span>
+    </button>
+</mat-menu>
+
+<!-- Template for new motion block dialog -->
+<ng-template #newCategoryDialog>
+    <h1 mat-dialog-title>
+        <span translate>New category</span>
+    </h1>
+    <div class="os-form-card-mobile" mat-dialog-content>
         <form [formGroup]="createForm" (keydown)="onKeyDown($event)">
             <!-- Prefix -->
             <p>
@@ -28,64 +61,19 @@
             <p>
                 <mat-form-field>
                     <input formControlName="name" matInput placeholder="{{ 'Name' | translate }}" required />
-                    <mat-error *ngIf="!createForm.controls.name.valuid" translate>
+                    <mat-error *ngIf="!createForm.controls.name.valid" translate>
                         A name is required
                     </mat-error>
                 </mat-form-field>
             </p>
         </form>
-    </mat-card-content>
-
-    <!-- Save and Cancel buttons -->
-    <mat-card-actions>
-        <button mat-button [disabled]="!createForm.valid" (click)="onCreate()">
+    </div>
+    <div mat-dialog-actions>
+        <button mat-button [disabled]="!createForm.valid" [mat-dialog-close]="true">
             <span translate>Save</span>
         </button>
-        <button mat-button (click)="onCancel()">
+        <button mat-button [mat-dialog-close]="false">
             <span translate>Cancel</span>
         </button>
-    </mat-card-actions>
-</mat-card>
-
-<!-- Table -->
-<mat-card class="os-card">
-    <table class="os-headed-listview-table" mat-table [dataSource]="dataSource">
-        <!-- title column -->
-        <ng-container matColumnDef="title">
-            <mat-header-cell *matHeaderCellDef>
-                <span translate>Title</span>
-            </mat-header-cell>
-            <mat-cell *matCellDef="let category">
-                <div [style.margin-left]="getMargin(category)">{{ category.prefixedName }}</div>
-            </mat-cell>
-        </ng-container>
-
-        <!-- amount column -->
-        <ng-container matColumnDef="amount">
-            <mat-header-cell *matHeaderCellDef>
-                <span translate>Motions</span>
-            </mat-header-cell>
-            <mat-cell *matCellDef="let category">
-                <span class="os-amount-chip">{{ category.motions.length }}</span>
-            </mat-cell>
-        </ng-container>
-
-        <!-- Anchor column to open the separate tab -->
-        <ng-container matColumnDef="anchor">
-            <mat-header-cell *matHeaderCellDef></mat-header-cell>
-            <mat-cell *matCellDef="let category">
-                <a [routerLink]="category.id"></a>
-            </mat-cell>
-        </ng-container>
-
-        <mat-header-row *matHeaderRowDef="getColumnDefinition()"></mat-header-row>
-        <mat-row *matRowDef="let row; columns: getColumnDefinition()"> </mat-row>
-    </table>
-</mat-card>
-
-<mat-menu #categoryMenu="matMenu">
-    <button mat-menu-item [routerLink]="'./sort'">
-        <mat-icon>sort</mat-icon>
-        <span translate>Sort categories</span>
-    </button>
-</mat-menu>
+    </div>
+</ng-template>

client/src/app/site/motions/modules/category/components/category-list/category-list.component.ts

@@ -1,14 +1,17 @@
-import { Component, OnInit } from '@angular/core';
+import { Component, OnInit, TemplateRef, ViewChild } from '@angular/core';
 import { FormBuilder, FormGroup, Validators } from '@angular/forms';
+import { MatDialog } from '@angular/material';
 import { MatSnackBar } from '@angular/material/snack-bar';
-import { MatTableDataSource } from '@angular/material/table';
 import { Title } from '@angular/platform-browser';
 
 import { TranslateService } from '@ngx-translate/core';
+import { PblColumnDefinition } from '@pebula/ngrid';
 
 import { OperatorService } from 'app/core/core-services/operator.service';
+import { StorageService } from 'app/core/core-services/storage.service';
 import { CategoryRepositoryService } from 'app/core/repositories/motions/category-repository.service';
-import { BaseViewComponent } from 'app/site/base/base-view';
+import { infoDialogSettings } from 'app/shared/utils/dialog-settings';
+import { BaseListViewComponent } from 'app/site/base/base-list-view';
 import { ViewCategory } from 'app/site/motions/models/view-category';
 
 /**
@@ -19,21 +22,33 @@ import { ViewCategory } from 'app/site/motions/models/view-category';
     templateUrl: './category-list.component.html',
     styleUrls: ['./category-list.component.scss']
 })
-export class CategoryListComponent extends BaseViewComponent implements OnInit {
+export class CategoryListComponent extends BaseListViewComponent<ViewCategory> implements OnInit {
+    @ViewChild('newCategoryDialog', { static: true })
+    private newCategoryDialog: TemplateRef<string>;
+
     /**
      * Holds the create form
      */
     public createForm: FormGroup;
 
     /**
-     * Table data Source
+     * Define the columns to show
      */
-    public dataSource: MatTableDataSource<ViewCategory>;
+    public tableColumnDefinition: PblColumnDefinition[] = [
+        {
+            prop: 'title',
+            width: 'auto'
+        },
+        {
+            prop: 'amount',
+            width: this.singleButtonWidth
+        }
+    ];
 
     /**
-     * Flag, if the creation panel is open
+     * Define extra filter properties
      */
-    public isCreatingNewCategory = false;
+    public filterProps = ['prefixedName'];
 
     /**
      * helper for permission checks
@@ -59,11 +74,13 @@ export class CategoryListComponent extends BaseViewComponent implements OnInit {
         titleService: Title,
         translate: TranslateService,
         matSnackBar: MatSnackBar,
-        private repo: CategoryRepositoryService,
+        storage: StorageService,
+        public repo: CategoryRepositoryService,
         private formBuilder: FormBuilder,
+        private dialog: MatDialog,
         private operator: OperatorService
     ) {
-        super(titleService, translate, matSnackBar);
+        super(titleService, translate, matSnackBar, storage);
 
         this.createForm = this.formBuilder.group({
             prefix: [''],
@@ -77,74 +94,46 @@ export class CategoryListComponent extends BaseViewComponent implements OnInit {
      */
     public ngOnInit(): void {
         super.setTitle('Categories');
-
-        this.dataSource = new MatTableDataSource();
-        this.repo.getViewModelListObservable().subscribe(viewCategories => {
-            if (viewCategories && this.dataSource) {
-                this.dataSource.data = viewCategories;
-            }
-        });
-    }
-
-    /**
-     * Returns the columns that should be shown in the table
-     *
-     * @returns an array of strings building the column definition
-     */
-    public getColumnDefinition(): string[] {
-        return ['title', 'amount', 'anchor'];
     }
 
     /**
      * Click handler for the plus button
      */
     public onPlusButton(): void {
-        if (!this.isCreatingNewCategory) {
-            this.createForm.reset();
-            this.isCreatingNewCategory = true;
-        }
-    }
-
-    /**
-     * Click handler for the save button.
-     * Sends the category to create to the repository and resets the form.
-     */
-    public onCreate(): void {
-        if (this.createForm.valid) {
-            try {
-                this.repo.create(this.createForm.value);
-                this.createForm.reset();
-                this.isCreatingNewCategory = false;
-            } catch (e) {
-                this.raiseError(e);
+        this.createForm.reset();
+        const dialogRef = this.dialog.open(this.newCategoryDialog, infoDialogSettings);
+        dialogRef.afterClosed().subscribe(res => {
+            if (res) {
+                this.save();
             }
-        }
-        // set a form control as "touched" to trigger potential error messages
-        this.createForm.get('name').markAsTouched();
+        });
     }
 
     /**
-     * clicking Shift and Enter will save automatically
+     * Sends the category to create to the repository.
+     */
+    private save(): void {
+        if (this.createForm.valid) {
+            this.repo.create(this.createForm.value).catch(this.raiseError);
+        }
+    }
+
+    /**
+     * clicking Enter will save automatically
      * clicking Escape will cancel the process
      *
      * @param event has the code
      */
     public onKeyDown(event: KeyboardEvent): void {
         if (event.key === 'Enter') {
-            this.onCreate();
+            this.save();
+            this.dialog.closeAll();
         }
         if (event.key === 'Escape') {
-            this.onCancel();
+            this.dialog.closeAll();
         }
     }
 
-    /**
-     * Cancels the current form action
-     */
-    public onCancel(): void {
-        this.isCreatingNewCategory = false;
-    }
-
     public getMargin(category: ViewCategory): string {
         return `${category.level * 20}px`;
     }

client/src/app/site/tags/components/tag-list/tag-list.component.ts

@@ -7,6 +7,7 @@ import { Title } from '@angular/platform-browser';
 import { TranslateService } from '@ngx-translate/core';
 import { PblColumnDefinition } from '@pebula/ngrid';
 
+import { StorageService } from 'app/core/core-services/storage.service';
 import { TagRepositoryService } from 'app/core/repositories/tags/tag-repository.service';
 import { PromptService } from 'app/core/ui-services/prompt.service';
 import { Tag } from 'app/shared/models/core/tag';
@@ -68,13 +69,14 @@ export class TagListComponent extends BaseListViewComponent<ViewTag> implements
     public constructor(
         titleService: Title,
         matSnackBar: MatSnackBar,
+        storage: StorageService,
         public repo: TagRepositoryService,
         protected translate: TranslateService, // protected required for ng-translate-extract
         private promptService: PromptService,
         private dialog: MatDialog,
         private formBuilder: FormBuilder
     ) {
-        super(titleService, translate, matSnackBar);
+        super(titleService, translate, matSnackBar, storage);
     }
 
     /**