1 import { Injectable, Type, ViewContainerRef, ApplicationRef, ComponentFactory, ComponentFactoryResolver, ComponentRef } from '@angular/core';
2 import { ModalModel, ButtonModel } from 'app/models';
3 import { ModalComponent } from 'app/ng2/components/modal/modal.component';
7 export class ModalService {
8 currentModal: ComponentRef<any>;
11 constructor(private componentFactoryResolver: ComponentFactoryResolver, private applicationRef: ApplicationRef) { }
14 /* Shortcut method to open a simple modal with title, message, and close button that simply closes the modal. */
15 public openAlertModal(title: string, message: string, closeButtonText?:string) {
16 let closeButton: ButtonModel = new ButtonModel(closeButtonText || 'Close', 'grey', this.closeCurrentModal);
17 let modalModel: ModalModel = new ModalModel('sm', title, message, [closeButton]);
18 this.createCustomModal(modalModel).instance.open();
23 * Shortcut method to open a basic modal with title, message, and an action button with callback, as well as close button.
24 * NOTE: To close the modal from within the callback, use modalService.closeCurrentModal() //if you run into zone issues with callbacks see:https://stackoverflow.com/questions/36566698/how-to-dynamically-create-bootstrap-modals-as-angular2-components
25 * @param title Heading for modal
26 * @param message Message for modal
27 * @param actionButtonText Blue call to action button
28 * @param actionButtonCallback function to invoke when button is clicked
29 * @param cancelButtonText text for close/cancel button
31 public openActionModal = (title:string, message:string, actionButtonText:string, actionButtonCallback:Function, cancelButtonText:string) => {
32 let actionButton: ButtonModel = new ButtonModel(actionButtonText, 'blue', actionButtonCallback);
33 let cancelButton: ButtonModel = new ButtonModel(cancelButtonText, 'grey', this.closeCurrentModal);
34 let modalModel: ModalModel = new ModalModel('sm', title, message, [actionButton, cancelButton]);
35 this.createCustomModal(modalModel).instance.open();
39 /* Use this method to create a modal with title, message, and completely custom buttons. Use response.instance.open() to open */
40 public createCustomModal = (customModalData: ModalModel): ComponentRef<ModalComponent> => {
41 let customModal: ComponentRef<ModalComponent> = this.createDynamicComponent(ModalComponent);
42 customModal.instance.input = customModalData;
43 this.currentModal = customModal;
49 public closeCurrentModal = () => {
50 if (!this.currentModal) return;
51 this.currentModal.instance.close();
52 this.currentModal.destroy();
56 //Creates a component dynamically (aka during runtime). If a view container is not specified, it will append the new component to the app root.
57 //To subscribe to an event from invoking component: componentRef.instance.clicked.subscribe((m) => console.log(m.name));
58 private createDynamicComponent<T>(componentType: Type<T>, viewContainerRef?:ViewContainerRef): ComponentRef<any> {
60 viewContainerRef = viewContainerRef || this.getRootViewContainerRef();
61 viewContainerRef.clear();
63 let factory: ComponentFactory<any> = this.componentFactoryResolver.resolveComponentFactory(componentType); //Ref: https://angular.io/guide/dynamic-component-loader
64 let componentRef = viewContainerRef.createComponent(factory);
70 private getRootViewContainerRef(): ViewContainerRef {
71 return this.applicationRef.components[0].instance.viewContainerRef;