71 lines
2.7 KiB
JavaScript
71 lines
2.7 KiB
JavaScript
xrf.navigator = {}
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xrf.navigator.to = (url,flags,loader,data) => {
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if( !url ) throw 'xrf.navigator.to(..) no url given'
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return new Promise( (resolve,reject) => {
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let {urlObj,dir,file,hash,ext} = xrf.parseUrl(url)
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if( !file || xrf.model.file == file ){ // we're already loaded
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xrf.eval( url, xrf.model, flags ) // and eval local URI XR fragments
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xrf.navigator.updateHash(hash)
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return resolve(xrf.model)
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}
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if( xrf.model && xrf.model.scene ) xrf.model.scene.visible = false
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if( !loader ){
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const Loader = xrf.loaders[ext]
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if( !Loader ) throw 'xrfragment: no loader passed to xrfragment for extension .'+ext
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loader = loader || new Loader().setPath( dir )
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}
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// force relative path
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if( dir ) dir = dir[0] == '.' ? dir : `.${dir}`
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url = url.replace(dir,"")
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loader = loader || new Loader().setPath( dir )
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const onLoad = (model) => {
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xrf.reset() // clear xrf objects from scene
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model.file = file
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// only change url when loading *another* file
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if( xrf.model ) xrf.navigator.pushState( `${dir}${file}`, hash )
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xrf.model = model
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// spec: 1. execute the default predefined view '#' (if exist) (https://xrfragment.org/#predefined_view)
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xrf.frag.defaultPredefinedView({model,scene:model.scene})
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// spec: 2. execute predefined view(s) from URL (https://xrfragment.org/#predefined_view)
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xrf.eval( url, model ) // and eval URI XR fragments
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xrf.add( model.scene )
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if( !hash.match(/pos=/) ){
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xrf.eval( '#pos=0,0,0' ) // set default position if not specified
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}
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xrf.navigator.updateHash(hash)
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resolve(model)
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}
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if( data ) loader.parse(data, "", onLoad )
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else loader.load(url, onLoad )
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})
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}
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xrf.navigator.init = () => {
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if( xrf.navigator.init.inited ) return
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window.addEventListener('popstate', function (event){
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xrf.navigator.to( document.location.search.substr(1) + document.location.hash )
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})
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xrf.navigator.material = {
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selection: new xrf.THREE.LineBasicMaterial({color:0xFF00FF,linewidth:2})
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}
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xrf.navigator.init.inited = true
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}
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xrf.navigator.updateHash = (hash) => {
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if( hash == document.location.hash || hash.match(/\|/) ) return // skip unnecesary pushState triggers
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console.log(`URL: ${document.location.search.substr(1)}#${hash}`)
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document.location.hash = hash
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xrf.emit('updateHash', {hash} )
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}
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xrf.navigator.pushState = (file,hash) => {
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if( file == document.location.search.substr(1) ) return // page is in its default state
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console.log("pushstate")
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window.history.pushState({},`${file}#${hash}`, document.location.pathname + `?${file}#${hash}` )
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}
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