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notices.js
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notices.js
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/**
*
* Copyright 2016 Netflix, Inc.
*
* 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.
*
*/
import { each } from 'lodash';
import RendererUtils from './rendererUtils';
const Console = console;
function getNoticeElement () {
const noticeParentElement = RendererUtils.getParent();
if (noticeParentElement) {
const noticeElement = noticeParentElement.querySelector('.vizceral-notice');
if (!noticeElement) {
Console.warn('Notices are present on a connection, but there is no sibling element with a class of .vizceral-notice.');
return undefined;
}
return noticeElement;
}
return undefined;
}
class Notices {
showNotices (container, notices) {
const noticeElement = getNoticeElement();
if (!noticeElement) { return; }
const screenPosition = RendererUtils.toScreenPosition(container, 'TL');
// Clear any old notices
while (noticeElement.hasChildNodes()) {
noticeElement.removeChild(noticeElement.lastChild);
}
// Create the notices list
const noticeListElement = document.createElement('ul');
// Add new notices to the notice box
each(notices, (notice) => {
let noticeString = notice.title;
if (notice.link) {
noticeString = `<a href="${notice.link}" target="_blank">${noticeString}</a>`;
}
if (notice.subtitle) {
noticeString = `<span class="subtitle vizceral">[${notice.subtitle}]</span> ${noticeString}`;
}
const noticeItem = document.createElement('li');
noticeItem.className = 'vizceral';
noticeItem.innerHTML = noticeString;
noticeListElement.appendChild(noticeItem);
});
// Size and position the notices
noticeElement.appendChild(noticeListElement);
noticeElement.style.display = 'block';
noticeElement.style.top = `${screenPosition.y - (noticeElement.offsetHeight || 0)}px`;
noticeElement.style.left = `${screenPosition.x}px`;
}
hideNotices () {
// When using vizceral in a web component, there are cases when the vizceral component does not
// have a parent yet. Make sure we have a parent before continuing.
const noticeElement = getNoticeElement();
if (!noticeElement) { return; }
noticeElement.style.display = 'none';
}
}
export default new Notices();