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August 28, 2023 16:20
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A first test with WebComponent, extending HTMLElement javascript bioinformatics
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| <html> | |
| <head> | |
| </head> | |
| <body> | |
| <bio-anchor build="hg38">rs25</bio-anchor> and | |
| <bio-anchor build="hg38">ENSG00000005108</bio-anchor> | |
| <bio-anchor build="hg38">chr1:1234-1235</bio-anchor> | |
| <bio-anchor build="hg38">xxx</bio-anchor> | |
| </body> | |
| <tail> | |
| <script> | |
| class BioAnchor extends HTMLElement { | |
| constructor() { | |
| super(); | |
| const shadow = this.attachShadow({ | |
| mode: 'open' | |
| }); | |
| } | |
| connectedCallback() { | |
| const build = this.hasAttribute("build")?this.getAttribute("build"):""; | |
| const s = this.textContent; | |
| var match; | |
| const wrapper = document.createElement('span'); | |
| if(s.match(/^rs[0-9]+$/i)) { | |
| wrapper.appendChild(this.createAnchor({"href":"https://www.ncbi.nlm.nih.gov/snp/"+s,"title":s+" in DBSNP","text":s})); | |
| } | |
| else if(s.match(/^ENSG[0-9]+$/)) { | |
| wrapper.appendChild(this.createAnchor({"href":"http://www.ensembl.org/homo_sapiens/Gene/Summary?g="+s+"&db=core","title":s+" in Ensembl","text":s})); | |
| } | |
| else if(s.match(/^chr[0-9XY]+\:[0-9,]+\-[0-9,]+$/) && build!=="") { | |
| wrapper.appendChild(this.createAnchor({ | |
| "href":"https://genome.ucsc.edu/cgi-bin/hgTracks?db="+build+"&position="+encodeURI(s),"title":s+" in UCSC"+build,"text":s})); | |
| } | |
| else | |
| { | |
| wrapper.appendChild(document.createTextNode(s)); | |
| } | |
| this.shadowRoot.appendChild(wrapper); | |
| } | |
| createAnchor(hash) { | |
| var a = document.createElement('a'); | |
| if('title' in hash) a.title=hash.title; | |
| if('target' in hash) a.target=hash.target; | |
| if('href' in hash) a.href=hash.href; | |
| if('text' in hash) a.appendChild(document.createTextNode(hash.text)); | |
| return a; | |
| } | |
| attributeChangedCallback(name, oldValue, newValue) { | |
| if(name=="build") this.build=newValue; | |
| } | |
| } | |
| customElements.define('bio-anchor', BioAnchor); | |
| </script> | |
| </tail> | |
| </html> |
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