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synced 2024-12-23 01:39:36 +01:00
43 lines
1.3 KiB
JavaScript
43 lines
1.3 KiB
JavaScript
'use strict';
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// elementType: string, is the type of the element, such as link, meta, etc.
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// elementId id of the element
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// elementAttributes: hash table containing the attributes of the relevant element
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function constructHeadElement(elementType, elementId, elementAttributes) {
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let head = (document.head || document.getElementsByTagName('head')[0]);
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let element = document.createElement(elementType);
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let oldElement = document.getElementById(elementId);
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element.setAttribute('id', elementId);
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for (let k in elementAttributes){
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try {
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element.setAttribute(k, elementAttributes[k]);
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}
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catch(e){
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console.log(e.message);
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console.log(elementAttributes);
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continue;
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}
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}
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if (oldElement) {
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head.removeChild(oldElement);
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}
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head.appendChild(element);
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}
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// Accepts a dictionary of dictionaries which comprises a part or all of html head part
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// {link : {id1: {rel: ... }}}
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// traverses a tree of depth 3 (no backtracking)
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export function constructHead(headObject){
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for (let k in headObject){
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let favicons = headObject[k];
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for (let f in favicons){
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constructHeadElement(k, f, favicons[f]);
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}
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}
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}
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export function setTitle(titleString){
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document.title = titleString;
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}
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