79 lines
2.8 KiB
JavaScript
79 lines
2.8 KiB
JavaScript
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// this holds all the URI Template variables (https://www.rfc-editor.org/rfc/rfc6570)
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xrf.addEventListener('parseModel', (opts) => {
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let {model,url,file} = opts
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if( model.isSRC || opts.isSRC ) return // ignore SRC models
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xrf.URI.vars = new Proxy({},{
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set(me,k,v){
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if( k.match(/^(name)$/) ) return true
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me[k] = v
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return true
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},
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get(me,k ){
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if( k == '__object' ){
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let obj = {}
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for( let i in xrf.URI.vars ) obj[i] = xrf.URI.vars[i]()
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return obj
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}
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return me[k]
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},
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})
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model.scene.traverse( (n) => {
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const variables = /{([a-zA-Z0-9-]+)}/g
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if( n.userData ){
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for( let i in n.userData ){
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//if( i[0] == '#' || i.match(/^(href|tag)$/) ) continue // ignore XR Fragment aliases
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if( i.match(/^(src|href|tag)/) ){
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// lets declare empty variables found in src-values ('https://foo.com/video.mp4#{somevar}') e.g.
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if( n.userData[i].match(variables) ){
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let vars = [].concat( n.userData[i].match(variables) )
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const strip = (v) => v.replace(/[{}]/g,'')
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vars.map( (v) => xrf.URI.vars[ strip(v) ] = () => '' )
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}
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}else xrf.URI.vars[i] = () => n.userData[i] // declare variables with values
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}
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}
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})
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})
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xrf.addEventListener('dynamicKeyValue', (opts) => {
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// select active camera if any
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let {id,match,v} = opts
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if( !v.is( xrf.XRF.CUSTOMFRAG) ) return // only process custom frags from here
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if( v.string.match(/(<|>)/) ) return // ignore filter values
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if( match.length > 0 ){
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xrf.frag.dynamic.material(v,opts) // check if fragment is an objectname
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}
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if( !xrf.URI.vars[ v.string ] ) return console.error(`'${v.string}' metadata-key not found in scene`)
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//if( xrf.URI.vars[ id ] && !match.length ) return console.error(`'${id}' object/tag/metadata-key not found in scene`)
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if( xrf.debug ) console.log(`URI.vars[${id}] => '${v.string}'`)
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if( xrf.URI.vars[id] ){
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xrf.URI.vars[ id ] = xrf.URI.vars[ v.string ] // update var
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if( xrf.debug ) console.log(`URI.vars[${id}] => '${xrf.URI.vars[ v.string ]()}'`)
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xrf.scene.traverse( (n) => {
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// re-expand src-values which use the updated URI Template var
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if( n.userData && n.userData.src && n.userData.srcTemplate && n.userData.srcTemplate.match(`{${id}}`) ){
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let srcNewFragments = xrf.frag.src.expandURI( n ).replace(/.*#/,'')
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console.log(`URI.vars[${id}] => updating ${n.name} => ${srcNewFragments}`)
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let frag = xrf.hashbus.pub( srcNewFragments, n )
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}
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})
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}else{
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xrf.XRWG.deepApplyMatch(match, v, (match,v,node,type) => {
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console.log(v.string)
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if( node.geometry ) xrf.hashbus.pub( xrf.URI.vars[ v.string ](), node) // apply fragment mesh(es)
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})
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}
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})
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