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76 lines
3.0 KiB
JavaScript
76 lines
3.0 KiB
JavaScript
/*****************************************************************************
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* Open MCT Web, Copyright (c) 2014-2015, United States Government
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* as represented by the Administrator of the National Aeronautics and Space
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* Administration. All rights reserved.
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*
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* Open MCT Web is licensed under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0.
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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* Open MCT Web includes source code licensed under additional open source
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* licenses. See the Open Source Licenses file (LICENSES.md) included with
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* this source code distribution or the Licensing information page available
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* at runtime from the About dialog for additional information.
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*****************************************************************************/
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/*global define*/
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define(
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[],
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function () {
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"use strict";
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/**
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* Drag-and-drop service.
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* Supplements HTML5 drag-and-drop support by:
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* * Storing arbitrary JavaScript objects (not just strings.)
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* * Allowing inspection of dragged objects during `dragover` events,
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* etc. (which cannot be done in Chrome for security reasons)
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* @memberof platform/representation
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* @constructor
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* @param $log Angular's $log service
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*/
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function DndService($log) {
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var data = {};
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return {
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/**
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* Set drag data associated with a given type.
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* @param {string} key the type's identiifer
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* @param {*} value the data being dragged
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* @memberof platform/representation.DndService#
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*/
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setData: function (key, value) {
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$log.debug("Setting drag data for " + key);
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data[key] = value;
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},
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/**
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* Get drag data associated with a given type.
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* @returns {*} the data being dragged
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* @memberof platform/representation.DndService#
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*/
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getData: function (key) {
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return data[key];
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},
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/**
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* Remove data associated with active drags.
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* @param {string} key the type to remove
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* @memberof platform/representation.DndService#
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*/
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removeData: function (key) {
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$log.debug("Clearing drag data for " + key);
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delete data[key];
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}
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};
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}
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return DndService;
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}
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);
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