import {
AfterViewInit,
Component,
ElementRef,
EventEmitter,
Input, OnDestroy,
OnInit,
Output,
ViewChild,
ViewEncapsulation
} from '@angular/core';
declare var UIkit: any;
@Component({
selector: 'modal-alert',
template: `
`,
encapsulation: ViewEncapsulation.None,
})
/**
* API to an open alert window.
*/
export class AlertModal implements OnInit, AfterViewInit, OnDestroy {
private static MODAL_COUNTER: number = 0;
id: string = "modal";
@Input() classTitle: string = "uk-background-primary-opacity";
@Input() classBody: string = "";
@Input() large: boolean = false;
@Input() overflowBody: boolean = true;
@ViewChild("bodyElement") bodyElement: ElementRef;
/**
* Caption for the title.
*/
public alertTitle: string;
/**
* Describes if the alert contains Ok Button.
* The default Ok button will close the alert and emit the callback.
* Defaults to true.
*/
public okButton: boolean = true;
/**
* Caption for the OK button.
* Default: Ok
*/
public okButtonText: string = 'OK';
/**
* Describes if the alert contains cancel Button.
* The default Cancelbutton will close the alert.
* Defaults to true.
*/
public cancelButton: boolean = true;
/**
* Caption for the Cancel button.
* Default: Cancel
*/
public cancelButtonText: string = 'Cancel';
/**
* if the alertMessage is true it will show the contentString inside alert body.
*/
/**
* Describes if the alert contains Previous Button.
* The default Previous button will emit the callback.
* Defaults to false.
*/
public previousButton: boolean = false;
/**
* Caption for the Previous button.
* Default: Previous
*/
public previousButtonText: string = 'Previous';
public alertMessage: boolean = true;
/**
* Some message/content can be set in message which will be shown in alert body.
*/
public message: string;
/**
* if the value is true alert footer will be visible or else it will be hidden.
*/
public alertFooter: boolean = true;
/**
* shows alert header if the value is true.
*/
public alertHeader: boolean = true;
/**
* if the value is true ok button align on the left, else on the right
*/
public okButtonLeft: boolean = true;
/**
* if the value is true ok button is disabled
*/
@Input()
public okDisabled: boolean = false;
/**
* If the value is true, a checkbox option will be appeared on the right side of footer
*/
@Input()
public choice: boolean = false;
/**
* if the value is true then on ok clicked, modal will stay open.
*/
public stayOpen: boolean = false;
/**
* Value will be emitted if @choice is true
*/
public select: boolean = true;
/**
* Emitted when ok button was clicked
* or when Ok method is called.
*/
@Output() public alertOutput: EventEmitter = new EventEmitter();
/**
* Emitted when cancel button was clicked
* or when cancel method is called.
*/
@Output() public cancelOutput: EventEmitter = new EventEmitter();
@ViewChild('element') element: ElementRef;
private subscriptions: any[] = [];
constructor() {
}
ngOnInit() {
AlertModal.MODAL_COUNTER++;
this.id = 'modal-' + AlertModal.MODAL_COUNTER;
}
ngAfterViewInit() {
if(this.element && typeof document !== "undefined") {
this.subscriptions.push(UIkit.util.on(document, 'hide', '#' + this.id, () => {
this.cancelOutput.emit(true);
}));
}
}
ngOnDestroy() {
if(typeof document !== "undefined") {
const element = document.getElementById("modal-container");
for (let i = element.childNodes.length - 1; i >= 0; --i) {
let child: ChildNode = element.childNodes[i];
if (child['id'] == this.id) {
child.remove();
}
}
}
this.subscriptions.forEach(subscription => {
if(subscription instanceof Function) {
subscription();
}
});
}
/**
* Opens an alert window creating backdrop.
*/
open() {
if(typeof UIkit !== "undefined") {
UIkit.modal(this.element.nativeElement).show();
if(this.overflowBody) {
this.bodyElement.nativeElement.scrollTo(0, 0);
}
}
}
/**
* ok method closes the modal and emits modalOutput.
*/
ok() {
if (!this.stayOpen && typeof UIkit !== "undefined") {
UIkit.modal(this.element.nativeElement).hide();
}
if (!this.choice) {
this.alertOutput.emit(true);
} else {
this.alertOutput.emit({
value: true,
choice: this.select
});
}
}
/**
* cancel method closes the modal.
*/
cancel() {
if(typeof UIkit !== "undefined") {
UIkit.modal(this.element.nativeElement).hide();
}
}
previous() {
this.cancelOutput.emit();
}
get bodyHeight() {
return (this.bodyElement) ? this.bodyElement.nativeElement.offsetHeight : 0;
}
}