primeng
Version:
[](https://badge.fury.io/js/primeng) [](https://www.npmjs.com/package/primeng) [;
/**
* Callback to invoke when drag ends.
* @param {DragEvent} event - Drag event.
* @group Emits
*/
onDragEnd = new EventEmitter();
/**
* Callback to invoke on dragging.
* @param {DragEvent} event - Drag event.
* @group Emits
*/
onDrag = new EventEmitter();
handle;
dragListener;
mouseDownListener;
mouseUpListener;
_pDraggableDisabled = false;
constructor(el, zone, renderer) {
this.el = el;
this.zone = zone;
this.renderer = renderer;
}
get pDraggableDisabled() {
return this._pDraggableDisabled;
}
set pDraggableDisabled(_pDraggableDisabled) {
this._pDraggableDisabled = _pDraggableDisabled;
if (this._pDraggableDisabled) {
this.unbindMouseListeners();
}
else {
this.el.nativeElement.draggable = true;
this.bindMouseListeners();
}
}
ngAfterViewInit() {
if (!this.pDraggableDisabled) {
this.el.nativeElement.draggable = true;
this.bindMouseListeners();
}
}
bindDragListener() {
if (!this.dragListener) {
this.zone.runOutsideAngular(() => {
this.dragListener = this.renderer.listen(this.el.nativeElement, 'drag', this.drag.bind(this));
});
}
}
unbindDragListener() {
if (this.dragListener) {
this.zone.runOutsideAngular(() => {
this.dragListener && this.dragListener();
this.dragListener = null;
});
}
}
bindMouseListeners() {
if (!this.mouseDownListener && !this.mouseUpListener) {
this.zone.runOutsideAngular(() => {
this.mouseDownListener = this.renderer.listen(this.el.nativeElement, 'mousedown', this.mousedown.bind(this));
this.mouseUpListener = this.renderer.listen(this.el.nativeElement, 'mouseup', this.mouseup.bind(this));
});
}
}
unbindMouseListeners() {
if (this.mouseDownListener && this.mouseUpListener) {
this.zone.runOutsideAngular(() => {
this.mouseDownListener && this.mouseDownListener();
this.mouseUpListener && this.mouseUpListener();
this.mouseDownListener = null;
this.mouseUpListener = null;
});
}
}
drag(event) {
this.onDrag.emit(event);
}
dragStart(event) {
if (this.allowDrag() && !this.pDraggableDisabled) {
if (this.dragEffect) {
event.dataTransfer.effectAllowed = this.dragEffect;
}
event.dataTransfer.setData('text', this.scope);
this.onDragStart.emit(event);
this.bindDragListener();
}
else {
event.preventDefault();
}
}
dragEnd(event) {
this.onDragEnd.emit(event);
this.unbindDragListener();
}
mousedown(event) {
this.handle = event.target;
}
mouseup(event) {
this.handle = null;
}
allowDrag() {
if (this.dragHandle && this.handle)
return DomHandler.matches(this.handle, this.dragHandle);
else
return true;
}
ngOnDestroy() {
this.unbindDragListener();
this.unbindMouseListeners();
}
static ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "17.0.5", ngImport: i0, type: Draggable, deps: [{ token: i0.ElementRef }, { token: i0.NgZone }, { token: i0.Renderer2 }], target: i0.ɵɵFactoryTarget.Directive });
static ɵdir = i0.ɵɵngDeclareDirective({ minVersion: "14.0.0", version: "17.0.5", type: Draggable, selector: "[pDraggable]", inputs: { scope: ["pDraggable", "scope"], dragEffect: "dragEffect", dragHandle: "dragHandle", pDraggableDisabled: "pDraggableDisabled" }, outputs: { onDragStart: "onDragStart", onDragEnd: "onDragEnd", onDrag: "onDrag" }, host: { listeners: { "dragstart": "dragStart($event)", "dragend": "dragEnd($event)" }, classAttribute: "p-element" }, ngImport: i0 });
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "17.0.5", ngImport: i0, type: Draggable, decorators: [{
type: Directive,
args: [{
selector: '[pDraggable]',
host: {
class: 'p-element'
}
}]
}], ctorParameters: () => [{ type: i0.ElementRef }, { type: i0.NgZone }, { type: i0.Renderer2 }], propDecorators: { scope: [{
type: Input,
args: ['pDraggable']
}], dragEffect: [{
type: Input
}], dragHandle: [{
type: Input
}], onDragStart: [{
type: Output
}], onDragEnd: [{
type: Output
}], onDrag: [{
type: Output
}], pDraggableDisabled: [{
type: Input
}], dragStart: [{
type: HostListener,
args: ['dragstart', ['$event']]
}], dragEnd: [{
type: HostListener,
args: ['dragend', ['$event']]
}] } });
/**
* pDroppable directive apply droppable behavior to any element.
* @group Components
*/
export class Droppable {
el;
zone;
renderer;
scope;
/**
* Whether the element is droppable, useful for conditional cases.
* @group Props
*/
pDroppableDisabled = false;
/**
* Defines the cursor style, valid values are none, copy, move, link, copyMove, copyLink, linkMove and all.
* @group Props
*/
dropEffect;
/**
* Callback to invoke when a draggable enters drop area.
* @group Emits
*/
onDragEnter = new EventEmitter();
/**
* Callback to invoke when a draggable leave drop area.
* @group Emits
*/
onDragLeave = new EventEmitter();
/**
* Callback to invoke when a draggable is dropped onto drop area.
* @group Emits
*/
onDrop = new EventEmitter();
constructor(el, zone, renderer) {
this.el = el;
this.zone = zone;
this.renderer = renderer;
}
dragOverListener;
ngAfterViewInit() {
if (!this.pDroppableDisabled) {
this.bindDragOverListener();
}
}
bindDragOverListener() {
if (!this.dragOverListener) {
this.zone.runOutsideAngular(() => {
this.dragOverListener = this.renderer.listen(this.el.nativeElement, 'dragover', this.dragOver.bind(this));
});
}
}
unbindDragOverListener() {
if (this.dragOverListener) {
this.zone.runOutsideAngular(() => {
this.dragOverListener && this.dragOverListener();
this.dragOverListener = null;
});
}
}
dragOver(event) {
event.preventDefault();
}
drop(event) {
if (this.allowDrop(event)) {
DomHandler.removeClass(this.el.nativeElement, 'p-draggable-enter');
event.preventDefault();
this.onDrop.emit(event);
}
}
dragEnter(event) {
event.preventDefault();
if (this.dropEffect) {
event.dataTransfer.dropEffect = this.dropEffect;
}
DomHandler.addClass(this.el.nativeElement, 'p-draggable-enter');
this.onDragEnter.emit(event);
}
dragLeave(event) {
event.preventDefault();
DomHandler.removeClass(this.el.nativeElement, 'p-draggable-enter');
this.onDragLeave.emit(event);
}
allowDrop(event) {
let dragScope = event.dataTransfer.getData('text');
if (typeof this.scope == 'string' && dragScope == this.scope) {
return true;
}
else if (Array.isArray(this.scope)) {
for (let j = 0; j < this.scope.length; j++) {
if (dragScope == this.scope[j]) {
return true;
}
}
}
return false;
}
ngOnDestroy() {
this.unbindDragOverListener();
}
static ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "17.0.5", ngImport: i0, type: Droppable, deps: [{ token: i0.ElementRef }, { token: i0.NgZone }, { token: i0.Renderer2 }], target: i0.ɵɵFactoryTarget.Directive });
static ɵdir = i0.ɵɵngDeclareDirective({ minVersion: "14.0.0", version: "17.0.5", type: Droppable, selector: "[pDroppable]", inputs: { scope: ["pDroppable", "scope"], pDroppableDisabled: "pDroppableDisabled", dropEffect: "dropEffect" }, outputs: { onDragEnter: "onDragEnter", onDragLeave: "onDragLeave", onDrop: "onDrop" }, host: { listeners: { "drop": "drop($event)", "dragenter": "dragEnter($event)", "dragleave": "dragLeave($event)" }, classAttribute: "p-element" }, ngImport: i0 });
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "17.0.5", ngImport: i0, type: Droppable, decorators: [{
type: Directive,
args: [{
selector: '[pDroppable]',
host: {
class: 'p-element'
}
}]
}], ctorParameters: () => [{ type: i0.ElementRef }, { type: i0.NgZone }, { type: i0.Renderer2 }], propDecorators: { scope: [{
type: Input,
args: ['pDroppable']
}], pDroppableDisabled: [{
type: Input
}], dropEffect: [{
type: Input
}], onDragEnter: [{
type: Output
}], onDragLeave: [{
type: Output
}], onDrop: [{
type: Output
}], drop: [{
type: HostListener,
args: ['drop', ['$event']]
}], dragEnter: [{
type: HostListener,
args: ['dragenter', ['$event']]
}], dragLeave: [{
type: HostListener,
args: ['dragleave', ['$event']]
}] } });
export class DragDropModule {
static ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "17.0.5", ngImport: i0, type: DragDropModule, deps: [], target: i0.ɵɵFactoryTarget.NgModule });
static ɵmod = i0.ɵɵngDeclareNgModule({ minVersion: "14.0.0", version: "17.0.5", ngImport: i0, type: DragDropModule, declarations: [Draggable, Droppable], imports: [CommonModule], exports: [Draggable, Droppable] });
static ɵinj = i0.ɵɵngDeclareInjector({ minVersion: "12.0.0", version: "17.0.5", ngImport: i0, type: DragDropModule, imports: [CommonModule] });
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "17.0.5", ngImport: i0, type: DragDropModule, decorators: [{
type: NgModule,
args: [{
imports: [CommonModule],
exports: [Draggable, Droppable],
declarations: [Draggable, Droppable]
}]
}] });
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{ CommonModule } from '@angular/common';\nimport { AfterViewInit, Directive, ElementRef, EventEmitter, HostListener, Input, NgModule, NgZone, OnDestroy, Output, Renderer2 } from '@angular/core';\nimport { DomHandler } from 'primeng/dom';\nimport { VoidListener } from 'primeng/ts-helpers';\n/**\n * pDraggable directive apply draggable behavior to any element.\n * @group Components\n */\n@Directive({\n    selector: '[pDraggable]',\n    host: {\n        class: 'p-element'\n    }\n})\nexport class Draggable implements AfterViewInit, OnDestroy {\n    @Input('pDraggable') scope: string | undefined;\n    /**\n     * Defines the cursor style.\n     * @group Props\n     */\n    @Input() dragEffect: 'none' | 'copy' | 'copyLink' | 'copyMove' | 'link' | 'linkMove' | 'move' | 'all' | 'uninitialized' | undefined;\n    /**\n     * Selector to define the drag handle, by default anywhere on the target element is a drag handle to start dragging.\n     * @group Props\n     */\n    @Input() dragHandle: string | undefined;\n    /**\n     * Callback to invoke when drag begins.\n     * @param {DragEvent} event - Drag event.\n     * @group Emits\n     */\n    @Output() onDragStart: EventEmitter<DragEvent> = new EventEmitter();\n    /**\n     * Callback to invoke when drag ends.\n     * @param {DragEvent} event - Drag event.\n     * @group Emits\n     */\n    @Output() onDragEnd: EventEmitter<DragEvent> = new EventEmitter();\n    /**\n     * Callback to invoke on dragging.\n     * @param {DragEvent} event - Drag event.\n     * @group Emits\n     */\n    @Output() onDrag: EventEmitter<DragEvent> = new EventEmitter();\n\n    handle: any;\n\n    dragListener: VoidListener;\n\n    mouseDownListener: VoidListener;\n\n    mouseUpListener: VoidListener;\n\n    _pDraggableDisabled: boolean = false;\n\n    constructor(public el: ElementRef, public zone: NgZone, private renderer: Renderer2) {}\n\n    @Input() get pDraggableDisabled(): boolean {\n        return this._pDraggableDisabled;\n    }\n    set pDraggableDisabled(_pDraggableDisabled: boolean) {\n        this._pDraggableDisabled = _pDraggableDisabled;\n\n        if (this._pDraggableDisabled) {\n            this.unbindMouseListeners();\n        } else {\n            this.el.nativeElement.draggable = true;\n            this.bindMouseListeners();\n        }\n    }\n\n    ngAfterViewInit() {\n        if (!this.pDraggableDisabled) {\n            this.el.nativeElement.draggable = true;\n            this.bindMouseListeners();\n        }\n    }\n\n    bindDragListener() {\n        if (!this.dragListener) {\n            this.zone.runOutsideAngular(() => {\n                this.dragListener = this.renderer.listen(this.el.nativeElement, 'drag', this.drag.bind(this));\n            });\n        }\n    }\n\n    unbindDragListener() {\n        if (this.dragListener) {\n            this.zone.runOutsideAngular(() => {\n                this.dragListener && this.dragListener();\n                this.dragListener = null;\n            });\n        }\n    }\n\n    bindMouseListeners() {\n        if (!this.mouseDownListener && !this.mouseUpListener) {\n            this.zone.runOutsideAngular(() => {\n                this.mouseDownListener = this.renderer.listen(this.el.nativeElement, 'mousedown', this.mousedown.bind(this));\n                this.mouseUpListener = this.renderer.listen(this.el.nativeElement, 'mouseup', this.mouseup.bind(this));\n            });\n        }\n    }\n\n    unbindMouseListeners() {\n        if (this.mouseDownListener && this.mouseUpListener) {\n            this.zone.runOutsideAngular(() => {\n                this.mouseDownListener && this.mouseDownListener();\n                this.mouseUpListener && this.mouseUpListener();\n                this.mouseDownListener = null;\n                this.mouseUpListener = null;\n            });\n        }\n    }\n\n    drag(event: DragEvent) {\n        this.onDrag.emit(event);\n    }\n\n    @HostListener('dragstart', ['$event'])\n    dragStart(event: DragEvent) {\n        if (this.allowDrag() && !this.pDraggableDisabled) {\n            if (this.dragEffect) {\n                (event.dataTransfer as DataTransfer).effectAllowed = this.dragEffect;\n            }\n            (event.dataTransfer as DataTransfer).setData('text', this.scope!);\n\n            this.onDragStart.emit(event);\n\n            this.bindDragListener();\n        } else {\n            event.preventDefault();\n        }\n    }\n\n    @HostListener('dragend', ['$event'])\n    dragEnd(event: DragEvent) {\n        this.onDragEnd.emit(event);\n        this.unbindDragListener();\n    }\n\n    mousedown(event: MouseEvent) {\n        this.handle = event.target;\n    }\n\n    mouseup(event: MouseEvent) {\n        this.handle = null;\n    }\n\n    allowDrag(): boolean {\n        if (this.dragHandle && this.handle) return DomHandler.matches(this.handle, this.dragHandle);\n        else return true;\n    }\n\n    ngOnDestroy() {\n        this.unbindDragListener();\n        this.unbindMouseListeners();\n    }\n}\n/**\n * pDroppable directive apply droppable behavior to any element.\n * @group Components\n */\n@Directive({\n    selector: '[pDroppable]',\n    host: {\n        class: 'p-element'\n    }\n})\nexport class Droppable implements AfterViewInit, OnDestroy {\n    @Input('pDroppable') scope: string | string[] | undefined;\n    /**\n     * Whether the element is droppable, useful for conditional cases.\n     * @group Props\n     */\n    @Input() pDroppableDisabled: boolean = false;\n    /**\n     * Defines the cursor style, valid values are none, copy, move, link, copyMove, copyLink, linkMove and all.\n     * @group Props\n     */\n    @Input() dropEffect: 'none' | 'copy' | 'link' | 'move' | undefined;\n    /**\n     * Callback to invoke when a draggable enters drop area.\n     * @group Emits\n     */\n    @Output() onDragEnter: EventEmitter<DragEvent> = new EventEmitter();\n    /**\n     * Callback to invoke when a draggable leave drop area.\n     * @group Emits\n     */\n    @Output() onDragLeave: EventEmitter<DragEvent> = new EventEmitter();\n    /**\n     * Callback to invoke when a draggable is dropped onto drop area.\n     * @group Emits\n     */\n    @Output() onDrop: EventEmitter<DragEvent> = new EventEmitter();\n\n    constructor(public el: ElementRef, public zone: NgZone, private renderer: Renderer2) {}\n\n    dragOverListener: VoidListener;\n\n    ngAfterViewInit() {\n        if (!this.pDroppableDisabled) {\n            this.bindDragOverListener();\n        }\n    }\n\n    bindDragOverListener() {\n        if (!this.dragOverListener) {\n            this.zone.runOutsideAngular(() => {\n                this.dragOverListener = this.renderer.listen(this.el.nativeElement, 'dragover', this.dragOver.bind(this));\n            });\n        }\n    }\n\n    unbindDragOverListener() {\n        if (this.dragOverListener) {\n            this.zone.runOutsideAngular(() => {\n                this.dragOverListener && this.dragOverListener();\n                this.dragOverListener = null;\n            });\n        }\n    }\n\n    dragOver(event: DragEvent) {\n        event.preventDefault();\n    }\n\n    @HostListener('drop', ['$event'])\n    drop(event: DragEvent) {\n        if (this.allowDrop(event)) {\n            DomHandler.removeClass(this.el.nativeElement, 'p-draggable-enter');\n            event.preventDefault();\n            this.onDrop.emit(event);\n        }\n    }\n\n    @HostListener('dragenter', ['$event'])\n    dragEnter(event: DragEvent) {\n        event.preventDefault();\n\n        if (this.dropEffect) {\n            (event.dataTransfer as DataTransfer).dropEffect = this.dropEffect;\n        }\n\n        DomHandler.addClass(this.el.nativeElement, 'p-draggable-enter');\n        this.onDragEnter.emit(event);\n    }\n\n    @HostListener('dragleave', ['$event'])\n    dragLeave(event: DragEvent) {\n        event.preventDefault();\n\n        DomHandler.removeClass(this.el.nativeElement, 'p-draggable-enter');\n        this.onDragLeave.emit(event);\n    }\n\n    allowDrop(event: DragEvent): boolean {\n        let dragScope = (event.dataTransfer as DataTransfer).getData('text');\n        if (typeof this.scope == 'string' && dragScope == this.scope) {\n            return true;\n        } else if (Array.isArray(this.scope)) {\n            for (let j = 0; j < this.scope.length; j++) {\n                if (dragScope == this.scope[j]) {\n                    return true;\n                }\n            }\n        }\n        return false;\n    }\n\n    ngOnDestroy() {\n        this.unbindDragOverListener();\n    }\n}\n\n@NgModule({\n    imports: [CommonModule],\n    exports: [Draggable, Droppable],\n    declarations: [Draggable, Droppable]\n})\nexport class DragDropModule {}\n"]}