New packages org (#2639)

New packages org

lib/core/directives/node-permission.directive.ts

@@ -0,0 +1,77 @@
+/*!
+ * @license
+ * Copyright 2016 Alfresco Software, Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import { Directive, ElementRef, Input, OnChanges, SimpleChanges } from '@angular/core';
+import { MinimalNodeEntity } from 'alfresco-js-api';
+import { ContentService } from './../services/content.service';
+
+export interface NodePermissionSubject {
+    disabled: boolean;
+}
+
+@Directive({
+    selector: '[adf-node-permission]'
+})
+export class NodePermissionDirective implements OnChanges {
+
+    @Input('adf-node-permission')
+    permission: string = null;
+
+    @Input('adf-nodes')
+    nodes: MinimalNodeEntity[] = [];
+
+    constructor(private elementRef: ElementRef,
+                private contentService: ContentService) {
+    }
+
+    ngOnChanges(changes: SimpleChanges) {
+        if (changes.nodes && !changes.nodes.firstChange) {
+            this.updateElement();
+        }
+    }
+
+    /**
+     * Updates disabled state for the decorated element
+     *
+     * @memberof NodePermissionDirective
+     */
+    updateElement(): void {
+        let hasPermission = this.hasPermission(this.nodes, this.permission);
+        this.setDisableAttribute(!hasPermission);
+    }
+
+    private setDisableAttribute(disable: boolean) {
+        this.elementRef.nativeElement.disabled = disable;
+    }
+
+    /**
+     * Checks whether all nodes have a particular permission
+     *
+     * @param {MinimalNodeEntity[]} nodes Node collection to check
+     * @param {string} permission Permission to check for each node
+     * @returns {boolean} True if all nodes have provided permission, otherwise False
+     * @memberof NodePermissionDirective
+     */
+    hasPermission(nodes: MinimalNodeEntity[], permission: string): boolean {
+        if (nodes && nodes.length > 0) {
+            return nodes.every(node => this.contentService.hasPermission(node.entry, permission));
+        }
+
+        return false;
+    }
+
+}