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openmct/platform/features/timeline/src/directives/MCTSwimlaneDrag.js

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JavaScript

/*****************************************************************************
* Open MCT, Copyright (c) 2009-2016, United States Government
* as represented by the Administrator of the National Aeronautics and Space
* Administration. All rights reserved.
*
* Open MCT is licensed under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0.
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
* Open MCT includes source code licensed under additional open source
* licenses. See the Open Source Licenses file (LICENSES.md) included with
* this source code distribution or the Licensing information page available
* at runtime from the About dialog for additional information.
*****************************************************************************/
define(
['./SwimlaneDragConstants'],
function (SwimlaneDragConstants) {
/**
* Defines the `mct-swimlane-drag` directive. When a drag is initiated
* form an element with this attribute, the swimlane being dragged
* (identified by the value of this attribute, as an Angular expression)
* will be exported to the `dndService` as part of the active drag-drop
* state.
* @param {DndService} dndService drag-and-drop service
*/
function MCTSwimlaneDrag(dndService) {
function link(scope, element, attrs) {
// Look up the swimlane from the provided expression
function swimlane() {
return scope.$eval(attrs.mctSwimlaneDrag);
}
// When drag starts, publish via dndService
element.on('dragstart', function () {
dndService.setData(
SwimlaneDragConstants.TIMELINE_SWIMLANE_DRAG_TYPE,
swimlane()
);
});
// When drag ends, clear via dndService
element.on('dragend', function () {
dndService.removeData(
SwimlaneDragConstants.TIMELINE_SWIMLANE_DRAG_TYPE
);
});
}
return {
// Applies to attributes
restrict: "A",
// Link using above function
link: link
};
}
return MCTSwimlaneDrag;
}
);