95 lines
3.0 KiB
JavaScript
95 lines
3.0 KiB
JavaScript
/*****************************************************************************
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* Open MCT, Copyright (c) 2014-2020, 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 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 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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import EventEmitter from 'EventEmitter';
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import MenuComponent from './components/Menu.vue';
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import Vue from 'vue';
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class Menu extends EventEmitter {
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constructor(options) {
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super();
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this.options = options;
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this.component = new Vue({
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components: {
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MenuComponent
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},
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provide: {
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actions: options.actions
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},
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template: '<menu-component />'
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});
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if (options.onDestroy) {
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this.once('destroy', options.onDestroy);
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}
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this.dismiss = this.dismiss.bind(this);
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this.show = this.show.bind(this);
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this.show();
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}
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dismiss() {
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this.emit('destroy');
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document.body.removeChild(this.component.$el);
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document.removeEventListener('click', this.dismiss);
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this.component.$destroy();
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}
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show() {
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this.component.$mount();
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document.body.appendChild(this.component.$el);
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let position = this._calculatePopupPosition(this.options.x, this.options.y, this.component.$el);
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this.component.$el.style.left = `${position.x}px`;
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this.component.$el.style.top = `${position.y}px`;
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document.addEventListener('click', this.dismiss);
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}
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/**
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* @private
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*/
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_calculatePopupPosition(eventPosX, eventPosY, menuElement) {
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let menuDimensions = menuElement.getBoundingClientRect();
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let overflowX = (eventPosX + menuDimensions.width) - document.body.clientWidth;
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let overflowY = (eventPosY + menuDimensions.height) - document.body.clientHeight;
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if (overflowX > 0) {
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eventPosX = eventPosX - overflowX;
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}
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if (overflowY > 0) {
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eventPosY = eventPosY - overflowY;
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}
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return {
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x: eventPosX,
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y: eventPosY
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};
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}
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}
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export default Menu;
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