mirror of
https://github.com/Alfresco/alfresco-ng2-components.git
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353 lines
10 KiB
TypeScript
353 lines
10 KiB
TypeScript
/*!
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* @license
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* Copyright 2016 Alfresco Software, Ltd.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import { DataColumn, DataRowEvent, DataTableAdapter, ObjectDataColumn, ObjectDataRow, ObjectDataTableAdapter } from '@alfresco/core';
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import { AppConfigService, DataColumnListComponent } from '@alfresco/core';
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import { AfterContentInit, Component, ContentChild, EventEmitter, Input, OnChanges, OnInit, Output, SimpleChanges } from '@angular/core';
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import { Observable } from 'rxjs/Rx';
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import { TaskQueryRequestRepresentationModel } from '../models/filter.model';
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import { TaskListModel } from '../models/task-list.model';
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import { taskPresetsDefaultModel } from '../models/task-preset.model';
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import { TaskListService } from './../services/tasklist.service';
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const DEFAULT_SIZE = 5;
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@Component({
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selector: 'adf-tasklist',
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templateUrl: './task-list.component.html',
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styleUrls: ['./task-list.component.css']
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})
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export class TaskListComponent implements OnChanges, OnInit, AfterContentInit {
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requestNode: TaskQueryRequestRepresentationModel;
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@ContentChild(DataColumnListComponent) columnList: DataColumnListComponent;
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@Input()
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appId: number;
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@Input()
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processInstanceId: string;
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@Input()
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processDefinitionKey: string;
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@Input()
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state: string;
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@Input()
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assignment: string;
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@Input()
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sort: string;
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@Input()
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name: string;
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@Input()
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landingTaskId: string;
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@Input()
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data: DataTableAdapter;
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@Input()
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selectionMode: string = 'single'; // none|single|multiple
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@Input()
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presetColumn: string;
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@Input()
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multiselect: boolean = false;
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@Output()
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rowClick: EventEmitter<string> = new EventEmitter<string>();
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@Output()
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rowsSelected: EventEmitter<any[]> = new EventEmitter<any[]>();
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@Output()
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success: EventEmitter<any> = new EventEmitter<any>();
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@Output()
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error: EventEmitter<any> = new EventEmitter<any>();
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currentInstanceId: string;
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selectedInstances: any[];
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layoutPresets = {};
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@Input()
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page: number = 0;
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@Input()
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size: number = DEFAULT_SIZE;
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isLoading: boolean = true;
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/**
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* Toggles custom data source mode.
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* When enabled the component reloads data from it's current source instead of the server side.
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* This allows generating and displaying custom data sets (i.e. filtered out content).
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*
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* @type {boolean}
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* @memberOf TaskListComponent
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*/
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hasCustomDataSource: boolean = false;
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isStreamLoaded = false;
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constructor(private taskListService: TaskListService,
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private appConfig: AppConfigService) {
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}
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initStream() {
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if (!this.isStreamLoaded) {
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this.isStreamLoaded = true;
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this.taskListService.tasksList$.subscribe(
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(tasks) => {
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let instancesRow = this.createDataRow(tasks.data);
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this.renderInstances(instancesRow);
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this.selectTask(this.landingTaskId);
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this.success.emit(tasks);
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this.isLoading = false;
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}, (error) => {
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this.error.emit(error);
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this.isLoading = false;
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});
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}
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}
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ngOnInit() {
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if (this.data === undefined) {
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this.data = new ObjectDataTableAdapter();
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}
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this.initStream();
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}
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ngAfterContentInit() {
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this.loadLayoutPresets();
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this.setupSchema();
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}
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/**
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* Setup html-based (html definitions) or code behind (data adapter) schema.
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* If component is assigned with an empty data adater the default schema settings applied.
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*/
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setupSchema(): void {
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let schema: DataColumn[] = [];
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if (this.columnList && this.columnList.columns && this.columnList.columns.length > 0) {
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schema = this.columnList.columns.map(c => <DataColumn> c);
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}
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if (!this.data) {
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this.data = new ObjectDataTableAdapter([], schema.length > 0 ? schema : this.presetColumn ? this.getLayoutPreset(this.presetColumn) : this.getLayoutPreset());
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} else {
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if (schema && schema.length > 0) {
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this.data.setColumns(schema);
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} else if (this.data.getColumns().length === 0) {
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this.presetColumn ? this.setupDefaultColumns(this.presetColumn) : this.setupDefaultColumns();
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}
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}
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}
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ngOnChanges(changes: SimpleChanges) {
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this.initStream();
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if (this.isPropertyChanged(changes)) {
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this.reload();
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}
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}
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setCustomDataSource(rows: ObjectDataRow[]): void {
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if (this.data) {
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this.data.setRows(rows);
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this.hasCustomDataSource = true;
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}
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}
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private isPropertyChanged(changes: SimpleChanges): boolean {
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let changed: boolean = true;
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let landingTaskId = changes['landingTaskId'];
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if (landingTaskId && landingTaskId.currentValue && this.isEqualToCurrentId(landingTaskId.currentValue)) {
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changed = false;
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}
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return changed;
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}
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reload(): void {
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if (!this.hasCustomDataSource) {
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this.requestNode = this.createRequestNode();
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this.load(this.requestNode);
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}
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}
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private load(requestNode: TaskQueryRequestRepresentationModel) {
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this.isLoading = true;
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this.loadTasksByState().subscribe();
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}
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private loadTasksByState(): Observable<TaskListModel> {
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return this.requestNode.state === 'all'
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? this.taskListService.findAllTasksWithoutState(this.requestNode)
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: this.taskListService.findTasksByState(this.requestNode);
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}
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/**
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* Create an array of ObjectDataRow
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* @param instances
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* @returns {ObjectDataRow[]}
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*/
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private createDataRow(instances: any[]): ObjectDataRow[] {
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let instancesRows: ObjectDataRow[] = [];
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instances.forEach((row) => {
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instancesRows.push(new ObjectDataRow(row));
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});
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return instancesRows;
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}
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/**
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* Render the instances list
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*
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* @param instances
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*/
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private renderInstances(instances: any[]) {
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instances = this.optimizeNames(instances);
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this.data.setRows(instances);
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}
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/**
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* Select the task given in input if present
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*/
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selectTask(taskIdToSelect: string): void {
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if (!this.isListEmpty()) {
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let rows = this.data.getRows();
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if (rows.length > 0) {
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let dataRow = rows.find(row => row.getValue('id') === taskIdToSelect) || rows[0];
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this.data.selectedRow = dataRow;
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dataRow.isSelected = true;
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this.currentInstanceId = dataRow.getValue('id');
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}
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} else {
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if (this.data) {
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this.data.selectedRow = null;
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}
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this.currentInstanceId = null;
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}
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}
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/**
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* Return the current id
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* @returns {string}
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*/
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getCurrentId(): string {
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return this.currentInstanceId;
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}
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/**
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* Check if the taskId is the same of the selected task
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* @param taskId
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* @returns {boolean}
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*/
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isEqualToCurrentId(taskId: string) {
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return this.currentInstanceId === taskId ? true : false;
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}
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/**
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* Check if the list is empty
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* @returns {ObjectDataTableAdapter|boolean}
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*/
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isListEmpty(): boolean {
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return this.data === undefined ||
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(this.data && this.data.getRows() && this.data.getRows().length === 0);
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}
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onRowClick(item: DataRowEvent) {
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this.currentInstanceId = item.value.getValue('id');
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this.rowClick.emit(this.currentInstanceId);
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}
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onRowSelect(event: CustomEvent) {
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this.selectedInstances = [...event.detail.selection];
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this.rowsSelected.emit(this.selectedInstances);
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}
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onRowUnselect(event: CustomEvent) {
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this.selectedInstances = [...event.detail.selection];
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this.rowsSelected.emit(this.selectedInstances);
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}
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onRowKeyUp(event: CustomEvent) {
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if (event.detail.keyboardEvent.key === 'Enter') {
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event.preventDefault();
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this.currentInstanceId = event.detail.row.getValue('id');
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this.rowClick.emit(this.currentInstanceId);
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}
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}
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/**
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* Optimize name field
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* @param istances
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* @returns {any[]}
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*/
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private optimizeNames(istances: any[]) {
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istances = istances.map(t => {
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t.obj.name = t.obj.name || 'No name';
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return t;
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});
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return istances;
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}
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private createRequestNode() {
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let requestNode = {
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appDefinitionId: this.appId,
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processInstanceId: this.processInstanceId,
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processDefinitionKey: this.processDefinitionKey,
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text: this.name,
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assignment: this.assignment,
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state: this.state,
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sort: this.sort,
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landingTaskId: this.landingTaskId,
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page: this.page,
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size: this.size,
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start: 0
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};
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return new TaskQueryRequestRepresentationModel(requestNode);
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}
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setupDefaultColumns(preset: string = 'default'): void {
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if (this.data) {
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const columns = this.getLayoutPreset(preset);
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this.data.setColumns(columns);
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}
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}
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private loadLayoutPresets(): void {
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const externalSettings = this.appConfig.get('adf-task-list.presets', null);
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if (externalSettings) {
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this.layoutPresets = Object.assign({}, taskPresetsDefaultModel, externalSettings);
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} else {
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this.layoutPresets = taskPresetsDefaultModel;
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}
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}
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private getLayoutPreset(name: string = 'default'): DataColumn[] {
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return (this.layoutPresets[name] || this.layoutPresets['default']).map(col => new ObjectDataColumn(col));
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}
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}
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