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mirror of https://github.com/ascribe/onion.git synced 2024-12-22 17:33:14 +01:00
onion/js/utils/dom_utils.js
2015-11-03 10:39:01 +01:00

45 lines
1.3 KiB
JavaScript

'use strict';
/**
* Set the title in the browser window.
*/
export function setDocumentTitle(title) {
document.title = title;
}
/**
* @param {string} elementType: string, is the type of the element, such as link, meta, etc.
* @param {string} elementId id of the element
* @param {object} elementAttributes: hash table containing the attributes of the relevant element
*/
function constructHeadElement(elementType, elementId, elementAttributes) {
let head = (document.head || document.getElementsByTagName('head')[0]);
let element = document.createElement(elementType);
let oldElement = document.getElementById(elementId);
element.setAttribute('id', elementId);
for (let k in elementAttributes){
try {
element.setAttribute(k, elementAttributes[k]);
}
catch(e){
console.warn(e.message);
}
}
if (oldElement) {
head.removeChild(oldElement);
}
head.appendChild(element);
}
/**
* Accepts a dictionary of dictionaries which comprises a part or all of html head part
* @param {object} headObject {link : {id1: {rel: ... }}}
*/
export function constructHead(headObject){
for (let k in headObject){
let favicons = headObject[k];
for (let f in favicons){
constructHeadElement(k, f, favicons[f]);
}
}
}