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/**
* @license
* Copyright 2017 Google Inc. All Rights Reserved.
*
* 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.
*/
'use strict';
/**
* Logs messages via a UI butter.
*/
class Logger {
/**
* @param {Element} element
*/
constructor(element) {
/** @type {Element} */
this.el = element;
this._id = undefined;
}
/**
* Shows a butter bar.
* @param {string} msg The message to show.
* @param {boolean=} autoHide True to hide the message after a duration.
* Default is true.
*/
log(msg, autoHide = true) {
this._id && clearTimeout(this._id);
this.el.textContent = msg;
this.el.classList.add('show');
if (autoHide) {
this._id = setTimeout(_ => {
this.el.classList.remove('show');
}, 7000);
}
}
/**
* @param {string} msg
*/
warn(msg) {
this.log('Warning: ' + msg);
}
/**
* @param {string} msg
*/
error(msg) {
this.log(msg);
// Rethrow to make sure it's auditable as an error, but in a setTimeout so page
// recovers gracefully and user can try loading a report again.
setTimeout(_ => {
throw new Error(msg);
}, 0);
}
/**
* Explicitly hides the butter bar.
*/
hide() {
this._id && clearTimeout(this._id);
this.el.classList.remove('show');
}
}
if (typeof module !== 'undefined' && module.exports) {
module.exports = Logger;
}
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