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/**
* Copyright (c) 2017 ZTE Corporation.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* and the Apache License 2.0 which both accompany this distribution,
* and are available at http://www.eclipse.org/legal/epl-v10.html
* and http://www.apache.org/licenses/LICENSE-2.0
*
* Contributors:
* ZTE - initial API and implementation and/or initial documentation
*/
import { AfterViewChecked, AfterViewInit, Component, ElementRef, HostListener, OnInit, OnDestroy, ViewChild } from '@angular/core';
import { SequenceFlow } from '../../model/workflow/sequence-flow';
import { WorkflowElement } from '../../model/workflow/workflow-element';
import { WorkflowNode } from '../../model/workflow/workflow-node';
import { BroadcastService } from '../../services/broadcast.service';
import { DataService } from '../../services/data/data.service';
import { JsPlumbService } from '../../services/jsplumb.service';
import { ModelService } from '../../services/model.service';
/**
* main canvas, it contains two parts: canvas and node property component
* bpmn task nodes can be dropped into this canvas, and then the workflow can be edit
*/
@Component({
selector: 'b4t-container',
templateUrl: 'container.component.html',
styleUrls: ['./container.component.css']
})
export class ContainerComponent implements AfterViewChecked, AfterViewInit, OnInit, OnDestroy {
public allNotes: WorkflowNode[];
@ViewChild('nodeSelector') nodeSelector: ElementRef;
@ViewChild('mainContainer') mainContainer: ElementRef;
private isSelecting = false;
private selectedElements: WorkflowElement[] = [];
private showProperties = false;
private needInitSequence = false;
constructor(private broadcastService: BroadcastService, private jsPlumbService: JsPlumbService,
private dataService: DataService, public modelService: ModelService) {
}
@HostListener('window:keyup.delete', ['$event']) ondelete(event: KeyboardEvent) {
if (this.showProperties || 0 >= this.selectedElements.length) {
return;
}
this.selectedElements.forEach(element => {
if (this.modelService.isNode(element)) {
let selectNode = element as WorkflowNode;
const parentId = this.jsPlumbService.getParentNodeId(selectNode.id);
this.jsPlumbService.remove(selectNode);
this.modelService.deleteNode(parentId, selectNode.id);
} else {
let sequenceFlow = element as SequenceFlow;
this.modelService.deleteConnection(sequenceFlow.sourceRef, sequenceFlow.targetRef);
this.jsPlumbService.deleteConnect(sequenceFlow.sourceRef, sequenceFlow.targetRef);
}
});
this.selectedElements = [];
}
@HostListener('document:mouseup', ['$event']) onmouseup() {
if (this.isSelecting) {
this.nodeSelector.nativeElement.style.display = 'none';
this.mainContainer.nativeElement.onmousemove = null;
this.isSelecting = false;
this.broadcastService.broadcast(this.broadcastService.showProperty, null);
this.broadcastService.broadcast(this.broadcastService.selectedElement, this.selectedElements);
}
}
public ngOnInit() {
this.jsPlumbService.initJsPlumbInstance(this.modelService.rootNodeId);
this.broadcastService.backendServiceReady$.subscribe(() => {
this.dataService.initData();
});
this.broadcastService.planModel$.subscribe(() => {
this.needInitSequence = true;
});
this.broadcastService.showProperty$.subscribe(element=>{
this.showProperties = null !== element;
});
}
public ngAfterViewInit() {
this.jsPlumbService.canvasDroppable();
this.broadcastService.selectedElement$.subscribe(elements => {
if (elements) {
this.selectedElements = elements;
} else {
this.selectedElements = [];
}
});
}
public ngAfterViewChecked() {
if (this.needInitSequence) {
this.needInitSequence = false;
// Add the connection
this.jsPlumbService.connectChildrenNodes(this.modelService.rootNodeId);
}
}
public ngOnDestroy() {
if (this.mainContainer.nativeElement.onmousemove) {
this.mainContainer.nativeElement.document.onmousemove = null;
}
}
public canvasMouseDown(event) {
this.selectedElements = [];
this.isSelecting = true;
let posx = event.clientX + this.mainContainer.nativeElement.scrollLeft;
posx = 220 > posx ? 0 : posx - 220;
let posy = event.clientY + this.mainContainer.nativeElement.scrollTop;
posy = 60 > posy ? 0 : posy - 60;
let element = this.nodeSelector.nativeElement;
element.style.left = posx + "px";
element.style.top = posy + "px";
element.style.width = '0px';
element.style.height = '0px';
element.style.display = 'block';
let curThis = this;
this.mainContainer.nativeElement.onmousemove = function (moveEvent) {
let movePosx = moveEvent.clientX + curThis.mainContainer.nativeElement.scrollLeft;
movePosx = 220 > movePosx ? 0 : movePosx - 220;
let movePosy = moveEvent.clientY + curThis.mainContainer.nativeElement.scrollTop;
movePosy = 60 > movePosy ? 0 : movePosy - 60;
const left = Math.min(movePosx, posx);
const top = Math.min(movePosy, posy);
const width = Math.abs(posx - movePosx);
const height = Math.abs(posy - movePosy);
element.style.left = left + "px";
element.style.top = top + "px";
element.style.width = width + "px";
element.style.height = height + "px";
curThis.selectNodes(left, top, width, height);
};
}
private selectNodes(left: number, top: number, width: number, height: number) {
this.selectedElements = [];
const allNodes = this.modelService.getNodes();
allNodes.forEach(node => {
const np = node.position;
let selected = false;
if (left < np.left) {
if ((top < np.top && left + width > np.left && top + height > np.top)
|| (top >= np.top && top < np.top + np.height && left + width > np.left)) {
selected = true;
}
} else if (left < np.left + np.width) {
if ((top < np.top && top + height > np.top)
|| (top >= np.top && top < np.top + np.height)) {
selected = true;
}
}
if (selected) {
this.selectedElements.push(node);
}
});
this.broadcastService.broadcast(this.broadcastService.selectedElement, this.selectedElements);
}
}
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