Feature/reactive ui (#485)

* Reactive UI

* Disabled improved.

* Resized service.

frontend/app/features/content/shared/forms/assets-editor.component.html

@@ -1,8 +1,13 @@
-<div class="assets-container" [class.disabled]="snapshot.isDisabled" (sqxDropFile)="addFiles($event)" tabindex="1000">
+<div class="assets-container"
+    (sqxDropFile)="addFiles($event)"
+    (sqxDropDisabled)="snapshot.isDisabled"
+    tabindex="1000">
     <div class="header list">
         <div class="row no-gutters">
-            <div class="col">
-                <div class="drop-area align-items-center" (click)="assetsDialog.show()" (sqxDropFile)="addFiles($event)">
+            <div class="col" [class.disabled]="snapshot.isDisabled">
+                <div class="drop-area align-items-center" (click)="assetsDialog.show()"
+                    (sqxDropFile)="addFiles($event)"
+                    (sqxDropDisabled)="snapshot.isDisabled">
                     Drop files or click
                 </div>
             </div>
@@ -26,11 +31,15 @@
         <ng-container *ngIf="!snapshot.isListView; else listTemplate">
             <div class="row no-gutters">
                 <sqx-asset *ngFor="let file of snapshot.assetFiles" [assetFile]="file" 
+                    [isDisabled]="snapshot.isDisabled"
+                    [isCompact]="snapshot.isCompact"
                     (loadError)="removeLoadingAsset(file)"
                     (load)="addAsset(file, $event)">
                 </sqx-asset>
                 <sqx-asset *ngFor="let asset of snapshot.assets; trackBy: trackByAsset" 
                     [asset]="asset"
+                    [isDisabled]="snapshot.isDisabled"
+                    [isCompact]="snapshot.isCompact"
                     (update)="notifyOthers(asset)"
                     [removeMode]="true"
                     (remove)="removeLoadedAsset(asset)">
@@ -42,6 +51,7 @@
             <div class="list-view">
                 <sqx-asset *ngFor="let file of snapshot.assetFiles" [assetFile]="file"
                     [isListView]="true"
+                    [isDisabled]="snapshot.isDisabled"
                     [isCompact]="snapshot.isCompact"
                     (loadError)="removeLoadingAsset(file)"
                     (load)="addAsset(file, $event)">
@@ -59,6 +69,7 @@
                         <sqx-asset 
                             [asset]="asset"
                             [isListView]="true"
+                            [isDisabled]="snapshot.isDisabled"
                             [isCompact]="snapshot.isCompact"
                             (update)="notifyOthers(asset)"
                             [removeMode]="true" 

frontend/app/framework/angular/resized.directive.ts

@@ -5,25 +5,18 @@
  * Copyright (c) Squidex UG (haftungsbeschränkt). All rights reserved.
  */
 
-import { Directive, ElementRef, EventEmitter, Input, OnChanges, OnDestroy, Output } from '@angular/core';
-import ResizeObserver from 'resize-observer-polyfill';
+import { Directive, ElementRef, EventEmitter, Input, NgZone, OnChanges, OnDestroy, Output } from '@angular/core';
 
-const entriesMap = new WeakMap();
-
-const observer = new ResizeObserver(entries => {
-    for (const entry of entries) {
-        if (entriesMap.has(entry.target)) {
-            const component = entriesMap.get(entry.target);
-
-            component.onResized(entry);
-        }
-    }
-});
+import {
+    ResizeListener,
+    ResizeService,
+    ResourceOwner
+} from '@app/framework/internal';
 
 @Directive({
     selector: '[sqxResized], [sqxResizeCondition]'
 })
-export class ResizedDirective implements OnDestroy, OnChanges {
+export class ResizedDirective extends ResourceOwner implements OnDestroy, OnChanges, ResizeListener {
     private condition: ((rect: ClientRect) => boolean) | undefined;
     private conditionValue = false;
 
@@ -39,12 +32,12 @@ export class ResizedDirective implements OnDestroy, OnChanges {
     @Output('sqxResized')
     public resize = new EventEmitter<ClientRect>();
 
-    constructor(
-        private readonly element: ElementRef
+    constructor(resizeService: ResizeService, element: ElementRef,
+        private readonly zone: NgZone
     ) {
-        entriesMap.set(element.nativeElement, this);
+        super();
 
-        observer.observe(element.nativeElement);
+        this.own(resizeService.listen(element.nativeElement, this));
     }
 
     public ngOnChanges() {
@@ -62,21 +55,21 @@ export class ResizedDirective implements OnDestroy, OnChanges {
         }
     }
 
-    public ngOnDestroy() {
-        observer.unobserve(this.element.nativeElement);
-    }
-
-    public onResized(entry: ResizeObserverEntry) {
+    public onResize(rect: ClientRect) {
         if (this.condition) {
-            const value = this.condition(entry.contentRect);
+            const value = this.condition(rect);
 
             if (this.conditionValue !== value) {
-                this.resizeCondition.emit(value);
+                this.zone.run(() => {
+                    this.resizeCondition.emit(value);
+                });
 
                 this.conditionValue = value;
             }
         } else {
-            this.resize.emit(entry.contentRect);
+            this.zone.run(() => {
+                this.resize.emit(rect);
+            });
         }
     }
 }

frontend/app/framework/angular/sync-width.directive.ts

@@ -5,40 +5,46 @@
  * Copyright (c) Squidex UG (haftungsbeschränkt). All rights reserved.
  */
 
-import { AfterViewInit, Directive, ElementRef, Input, OnInit, Renderer2 } from '@angular/core';
-import { timer } from 'rxjs';
+import { AfterViewInit, Directive, ElementRef, Input, Renderer2 } from '@angular/core';
 
-import { ResourceOwner } from '@app/framework/internal';
+import {
+    ResizeListener,
+    ResizeService,
+    ResourceOwner
+} from '@app/framework/internal';
 
 @Directive({
     selector: '[sqxSyncWidth]'
 })
-export class SyncWidthDirective extends ResourceOwner implements OnInit, AfterViewInit {
+export class SyncWidthDirective extends ResourceOwner implements AfterViewInit, ResizeListener {
     @Input('sqxSyncWidth')
     public target: HTMLElement;
 
     constructor(
         private readonly element: ElementRef<HTMLElement>,
-        private readonly renderer: Renderer2
+        private readonly renderer: Renderer2,
+        private readonly resizeService: ResizeService
     ) {
         super();
-    }
 
-    public ngOnInit() {
-        this.own(timer(100, 100).subscribe(() => this.reposition()));
+        this.own(this.resizeService.listen(this.element.nativeElement, this));
     }
 
     public ngAfterViewInit() {
-        this.reposition();
+        this.onReposition();
     }
 
-    private reposition() {
-        if (!this.target) {
-            return;
-        }
+    public onResize(size: ClientRect) {
+        this.resize(size.width);
+    }
 
-        const size = this.element.nativeElement.clientWidth;
+    private onReposition() {
+        this.resize(this.element.nativeElement.clientWidth);
+    }
 
-        this.renderer.setStyle(this.target, 'width', `${size}px`);
+    private resize(width: number) {
+        if (this.target) {
+            this.renderer.setStyle(this.target, 'width', `${width}px`);
+        }
     }
 }

frontend/app/framework/internal.ts

@@ -16,6 +16,7 @@ export * from './services/loading.service';
 export * from './services/local-store.service';
 export * from './services/message-bus.service';
 export * from './services/onboarding.service';
+export * from './services/resize.service';
 export * from './services/resource-loader.service';
 export * from './services/shortcut.service';
 export * from './services/temp.service';

frontend/app/framework/module.ts

@@ -75,6 +75,7 @@ import {
     PopupLinkDirective,
     ProgressBarComponent,
     ResizedDirective,
+    ResizeService,
     ResourceLoaderService,
     RootViewComponent,
     SafeHtmlPipe,
@@ -269,6 +270,7 @@ export class SqxFrameworkModule {
                 LoadingService,
                 MessageBus,
                 OnboardingService,
+                ResizeService,
                 ResourceLoaderService,
                 ShortcutService,
                 TempService,

frontend/app/framework/services/resize.service.ts

@@ -0,0 +1,58 @@
+/*
+ * Squidex Headless CMS
+ *
+ * @license
+ * Copyright (c) Squidex UG (haftungsbeschränkt). All rights reserved.
+ */
+
+import { Injectable, OnDestroy } from '@angular/core';
+
+import ResizeObserver from 'resize-observer-polyfill';
+
+export interface ResizeListener {
+    onResize(rect: DOMRect, element: Element): void;
+}
+
+export const ResizeServiceFactory = () => {
+    return new ResizeService();
+};
+
+@Injectable()
+export class ResizeService implements OnDestroy {
+    private readonly listeners = new WeakMap<Element, ResizeListener>();
+    private observer: ResizeObserver;
+
+    public ngOnDestroy() {
+        if (this.observer) {
+            this.observer.disconnect();
+        }
+    }
+
+    public listen(target: Element, listener: ResizeListener) {
+        if (!this.observer) {
+            this.observer = new ResizeObserver(entries => {
+                for (const entry of entries) {
+                    if (this.listeners.has(entry.target)) {
+                        const component = this.listeners.get(entry.target);
+
+                        if (component) {
+                            component.onResize(entry.contentRect as any, entry.target);
+                        }
+                    }
+                }
+            });
+        }
+
+        this.listeners.set(target, listener);
+
+        this.observer.observe(target);
+
+        return () => {
+            this.unlisten(target);
+        };
+    }
+
+    public unlisten(target: Element) {
+        this.observer.unobserve(target);
+    }
+}

frontend/app/shared/components/assets/asset.component.html

@@ -30,18 +30,23 @@
                         <a class="file-edit ml-2" (click)="edit()" *ngIf="!isDisabled">
                             <i class="icon-pencil"></i>
                         </a>
+
                         <a class="file-download ml-2" [href]="asset | sqxAssetUrl" sqxStopClick sqxExternalLink="noicon">
                             <i class="icon-download"></i>
                         </a>
-                        <a class="file-delete ml-2" *ngIf="!isDisabled && !removeMode && asset.canDelete"
-                            (sqxConfirmClick)="delete.emit()"
-                            confirmTitle="Delete asset" 
-                            confirmText="Do you really want to delete the asset?">
-                            <i class="icon-delete"></i>
-                        </a>
-                        <a class="file-delete ml-2" (click)="remove.emit()" *ngIf="removeMode">
-                            <i class="icon-close"></i>
-                        </a>
+
+                        <ng-container *ngIf="!isDisabled">
+                            <a class="file-delete ml-2" *ngIf="!removeMode && asset.canDelete"
+                                (sqxConfirmClick)="delete.emit()"
+                                confirmTitle="Delete asset" 
+                                confirmText="Do you really want to delete the asset?">
+                                <i class="icon-delete"></i>
+                            </a>
+
+                            <a class="file-delete ml-2" (click)="remove.emit()" *ngIf="removeMode">
+                                <i class="icon-close"></i>
+                            </a>
+                        </ng-container>
                     </div>
 
                     <span class="overlay-type" *ngIf="asset.fileType">
@@ -133,13 +138,14 @@
                         </td>
                     </ng-container>
 
-                    <td class="col-actions text-right" *ngIf="!isDisabled || removeMode">
-                        <button type="button" class="btn btn-text-danger" *ngIf="!isDisabled && !removeMode && asset.canDelete"
+                    <td class="col-actions text-right" *ngIf="!isDisabled">
+                        <button type="button" class="btn btn-text-danger" *ngIf="!removeMode && asset.canDelete"
                             (sqxConfirmClick)="remove.emit()"
                             confirmTitle="Delete asset" 
                             confirmText="Do you really want to delete the asset?">
                             <i class="icon-bin2"></i>
                         </button>
+
                         <button type="button" class="btn btn-text-secondary" (click)="remove.emit()" *ngIf="removeMode">
                             <i class="icon-close"></i>
                         </button>