93 lines
1.9 KiB
TypeScript
93 lines
1.9 KiB
TypeScript
import { Directive, EventEmitter, ElementRef } from 'angular2/core';
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import { FileUploader } from './file-uploader';
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@Directive({
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selector: '[ng2-file-drop]',
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properties: ['uploader'],
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events: ['fileOver'],
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host: {
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'(drop)': 'onDrop($event)',
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'(dragover)': 'onDragOver($event)',
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'(dragleave)': 'onDragLeave($event)'
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}
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})
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export class FileDrop {
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public uploader:FileUploader;
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private fileOver:EventEmitter<any> = new EventEmitter();
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constructor(private element:ElementRef) {
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}
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getOptions() {
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return this.uploader.options;
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}
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getFilters() {
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}
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onDrop(event:any) {
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let transfer = this._getTransfer(event);
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if (!transfer) {
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return;
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}
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let options = this.getOptions();
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let filters = this.getFilters();
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this._preventAndStop(event);
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this.uploader.addToQueue(transfer.files, options, filters);
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this.fileOver.next(false);
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}
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onDragOver(event:any) {
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let transfer = this._getTransfer(event);
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if (!this._haveFiles(transfer.types)) {
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return;
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}
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transfer.dropEffect = 'copy';
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this._preventAndStop(event);
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this.fileOver.next(true);
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}
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onDragLeave(event:any):any {
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if (event.currentTarget === (<any>this).element[0]) {
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return;
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}
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this._preventAndStop(event);
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this.fileOver.next(false);
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}
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private _getTransfer(event:any):any {
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return event.dataTransfer ? event.dataTransfer : event.originalEvent.dataTransfer; // jQuery fix;
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}
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private _preventAndStop(event:any):any {
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event.preventDefault();
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event.stopPropagation();
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}
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private _haveFiles(types:any):any {
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if (!types) {
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return false;
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}
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if (types.indexOf) {
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return types.indexOf('Files') !== -1;
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} else if (types.contains) {
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return types.contains('Files');
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} else {
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return false;
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}
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}
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_addOverClass(item:any):any {
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item.addOverClass();
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}
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_removeOverClass(item:any):any {
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item.removeOverClass();
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}
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}
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