ng-uploader/src/uploader/ng-drop-directive.js

## ng-uploader [](https://github.com/mgechev/angular2-style-guide)

import { Directive, ElementRef, HostListener, Output, EventEmitter } from '@angular/core';
import { NgUploader } from './ng-uploader';
var NgUploadDropDirective = (function () {
    function NgUploadDropDirective(el, uploader) {
        this.uploader = uploader;
        this.isUploadBotton = false;
        this.onFileOver = new EventEmitter();
        this.onFileDrop = new EventEmitter();
        this.el = el;
    }
    NgUploadDropDirective.prototype.onDropHandler = function ($event) {
        var transfer = this._getTransfer($event);
        if (!this._haveFiles(transfer.types)) {
            return;
        }
        this._preventAndStop($event);
        this.uploader.addFiles(transfer.files);
        this.onFileDrop.emit(transfer.files);
    };
    NgUploadDropDirective.prototype.onDragOverHandler = function ($event) {
        var transfer = this._getTransfer(event);
        if (!this._haveFiles(transfer.types)) {
            return;
        }
        this.onFileOver.emit(true);
    };
    NgUploadDropDirective.prototype.onDragOverLeave = function ($event) {
        this.onFileOver.emit(false);
    };
    NgUploadDropDirective.prototype._preventAndStop = function (event) {
        event.preventDefault();
        event.stopPropagation();
    };
    NgUploadDropDirective.prototype._getTransfer = function (event) {
        return event.dataTransfer ? event.dataTransfer : event.originalEvent.dataTransfer;
    };
    NgUploadDropDirective.prototype._haveFiles = function (types) {
        if (!types) {
            return false;
        }
        if (types.indexOf) {
            return types.indexOf('Files') !== -1;
        }
        else if (types.contains) {
            return types.contains('Files');
        }
        else {
            return false;
        }
    };
    return NgUploadDropDirective;
}());
export { NgUploadDropDirective };
NgUploadDropDirective.decorators = [
    { type: Directive, args: [{
                selector: '[ng2UploadDrop]'
            },] },
];
/** @nocollapse */
NgUploadDropDirective.ctorParameters = function () { return [
    { type: ElementRef, },
    { type: NgUploader, },
]; };
NgUploadDropDirective.propDecorators = {
    'onFileOver': [{ type: Output },],
    'onFileDrop': [{ type: Output },],
    'onDropHandler': [{ type: HostListener, args: ['drop', ['$event'],] },],
    'onDragOverHandler': [{ type: HostListener, args: ['dragover', ['$event'],] },],
    'onDragOverLeave': [{ type: HostListener, args: ['dragleave', ['$event'],] },],
};
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