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https://github.com/Alfresco/alfresco-ng2-components.git
synced 2025-07-24 17:32:15 +00:00
Eugenio Romano
GitHub
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/*!
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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, DataSorting, DataTableAdapter, ObjectDataColumn, ObjectDataRow, ObjectDataTableAdapter } from '@alfresco/core';
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import { AppConfigService, DataColumnListComponent } from '@alfresco/core';
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import { DatePipe } from '@angular/common';
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import { AfterContentInit, Component, ContentChild, EventEmitter, Input, OnChanges, Output, SimpleChanges } from '@angular/core';
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import { ProcessFilterParamRepresentationModel } from '../models/filter-process.model';
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import { ProcessInstance } from '../models/process-instance.model';
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import { processPresetsDefaultModel } from '../models/process-preset.model';
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import { ProcessService } from '../services/process.service';
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@Component({
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selector: 'adf-process-instance-list',
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styleUrls: ['./process-list.component.css'],
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templateUrl: './process-list.component.html'
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})
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export class ProcessInstanceListComponent implements OnChanges, AfterContentInit {
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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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processDefinitionKey: string;
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@Input()
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state: 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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presetColumn: string;
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requestNode: ProcessFilterParamRepresentationModel;
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@Input()
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data: DataTableAdapter;
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@Output()
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rowClick: EventEmitter<string> = new EventEmitter<string>();
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@Output()
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success: EventEmitter<ProcessInstance[]> = new EventEmitter<ProcessInstance[]>();
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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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isLoading: boolean = true;
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layoutPresets = {};
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constructor(private processService: ProcessService,
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private appConfig: AppConfigService) {
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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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if (this.appId) {
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this.reload();
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}
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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() {
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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.getLayoutPreset(this.presetColumn));
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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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if (this.isPropertyChanged(changes)) {
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this.reload();
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}
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}
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private isPropertyChanged(changes: SimpleChanges): boolean {
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let changed: boolean = false;
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let appId = changes['appId'];
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let processDefinitionKey = changes['processDefinitionKey'];
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let state = changes['state'];
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let sort = changes['sort'];
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let name = changes['name'];
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if (appId && appId.currentValue) {
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changed = true;
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} else if (processDefinitionKey && processDefinitionKey.currentValue) {
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changed = true;
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} else if (state && state.currentValue) {
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changed = true;
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} else if (sort && sort.currentValue) {
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changed = true;
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} else if (name && name.currentValue) {
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changed = true;
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}
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return changed;
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}
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public reload() {
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this.requestNode = this.createRequestNode();
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this.load(this.requestNode);
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}
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private load(requestNode: ProcessFilterParamRepresentationModel) {
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this.isLoading = true;
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this.processService.getProcessInstances(requestNode, this.processDefinitionKey)
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.subscribe(
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(response) => {
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let instancesRow = this.createDataRow(response);
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this.renderInstances(instancesRow);
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this.selectFirst();
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this.success.emit(response);
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this.isLoading = false;
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},
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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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* 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.setDatatableSorting();
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this.data.setRows(instances);
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}
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/**
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* Sort the datatable rows based on current value of 'sort' property
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*/
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private setDatatableSorting() {
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if (!this.sort) {
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return;
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}
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let sortingParams: string[] = this.sort.split('-');
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if (sortingParams.length === 2) {
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let sortColumn = sortingParams[0] === 'created' ? 'started' : sortingParams[0];
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let sortOrder = sortingParams[1];
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this.data.setSorting(new DataSorting(sortColumn, sortOrder));
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}
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}
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/**
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* Select the first instance of a list if present
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*/
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selectFirst() {
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if (!this.isListEmpty()) {
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let row = this.data.getRows()[0];
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row.isSelected = true;
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this.data.selectedRow = row;
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this.currentInstanceId = row.getValue('id');
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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 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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/**
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* Emit the event rowClick passing the current task id when the row is clicked
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* @param event
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*/
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onRowClick(event: DataRowEvent) {
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let item = event;
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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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/**
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* Emit the event rowClick passing the current task id when pressed the Enter key on the selected row
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* @param event
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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 instances
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* @returns {any[]}
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*/
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private optimizeNames(instances: any[]) {
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instances = instances.map(t => {
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t.obj.name = this.getProcessNameOrDescription(t.obj, 'medium');
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return t;
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});
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return instances;
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}
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getProcessNameOrDescription(processInstance, dateFormat): string {
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let name = '';
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if (processInstance) {
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name = processInstance.name ||
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processInstance.processDefinitionName + ' - ' + this.getFormatDate(processInstance.started, dateFormat);
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}
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return name;
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}
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getFormatDate(value, format: string) {
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let datePipe = new DatePipe('en-US');
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try {
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return datePipe.transform(value, format);
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} catch (err) {
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return '';
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}
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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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state: this.state,
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sort: this.sort
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};
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return new ProcessFilterParamRepresentationModel(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-process-list.presets', null);
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if (externalSettings) {
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this.layoutPresets = Object.assign({}, processPresetsDefaultModel, externalSettings);
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} else {
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this.layoutPresets = processPresetsDefaultModel;
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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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