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diff --git a/webapp/non_npm_dependencies/jquery-dragster/jquery.dragster.js b/webapp/non_npm_dependencies/jquery-dragster/jquery.dragster.js
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--- a/webapp/non_npm_dependencies/jquery-dragster/jquery.dragster.js
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-// 1.0.3
-/*
-The MIT License (MIT)
-
-Copyright (c) 2015 Jan Martin
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
-*/
-(function ($) {
-
- $.fn.dragster = function (options) {
- var settings = $.extend({
- enter: $.noop,
- leave: $.noop,
- over: $.noop,
- drop: $.noop
- }, options);
-
- return this.each(function () {
- var first = false,
- second = false,
- $this = $(this);
-
- $this.on({
- dragenter: function (event) {
- if (first) {
- second = true;
- return;
- } else {
- first = true;
- $this.trigger('dragster:enter', event);
- }
- event.preventDefault();
- },
- dragleave: function (event) {
- if (second) {
- second = false;
- } else if (first) {
- first = false;
- }
- if (!first && !second) {
- $this.trigger('dragster:leave', event);
- }
- event.preventDefault();
- },
- dragover: function (event) {
- $this.trigger('dragster:over', event);
- event.preventDefault();
- },
- drop: function (event) {
- if (second) {
- second = false;
- } else if (first) {
- first = false;
- }
- if (!first && !second) {
- $this.trigger('dragster:drop', event);
- }
- event.preventDefault();
- },
- 'dragster:enter': settings.enter,
- 'dragster:leave': settings.leave,
- 'dragster:over': settings.over,
- 'dragster:drop': settings.drop
- });
- });
- };
-
-}(jQuery));