Files
openmct/src/plugins/flexibleLayout/components/dropHint.vue
Andrew Henry 4084a1ac86 Drag and drop fixes (#2249)
* Drag-drop edit mode from capture handler. Drag-drop composition from bubble handler. Check composability on drag start

* Show drop hints without being in edit mode.

* Don't serialize objects twice on drag
2019-01-11 11:20:57 -08:00

81 lines
2.5 KiB
Vue

/*****************************************************************************
* Open MCT, Copyright (c) 2014-2018, 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
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*****************************************************************************/
<template>
<div v-show="isValidTarget">
<div class="c-drop-hint c-drop-hint--always-show"
:class="{'is-mouse-over': isMouseOver}"
@dragenter="dragenter"
@dragleave="dragleave"
@drop="dropHandler">
</div>
</div>
</template>
<style lang="scss">
</style>
<script>
export default {
props:{
index: Number,
allowDrop: {
type: Function,
required: true
}
},
data() {
return {
isMouseOver: false,
isValidTarget: false
}
},
methods: {
dragenter() {
this.isMouseOver = true;
},
dragleave() {
this.isMouseOver = false;
},
dropHandler(event) {
this.$emit('object-drop-to', this.index, event);
this.isValidTarget = false;
},
dragstart(event) {
this.isValidTarget = this.allowDrop(event, this.index);
},
dragend() {
this.isValidTarget = false;
}
},
mounted() {
document.addEventListener('dragstart', this.dragstart);
document.addEventListener('dragend', this.dragend);
},
destroyed() {
document.removeEventListener('dragstart', this.dragstart);
document.removeEventListener('dragend', this.dragend);
}
}
</script>