42 lines
1.6 KiB
Go
42 lines
1.6 KiB
Go
//go:build js && wasm
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// Command wasm is the client entry point: it wires client capabilities into the
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// (generated) routes, then hydrates the server-rendered DOM or renders fresh.
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package main
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import (
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"gowasmweb/app"
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"kjol/vdom"
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"kjol/wasmruntime"
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)
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func main() {
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// (The client transport for httputil.FetchGob / FetchJSON needs no wiring —
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// importing wasmruntime installs it. On the server it stays nil, so those
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// fetches no-op during SSR and the page ships its loading state.)
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//
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// Collect the signals created during setup so their values can be preserved
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// across an in-place hot swap. On a normal load RestoreState is nil (fresh
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// state); after a dev hot-reload it carries the previous instance's values,
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// which NewSignal restores by creation order.
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collector := vdom.BeginCollect(wasmruntime.RestoreState())
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router := wasmruntime.NewRouter()
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deps := app.Deps{Path: router.Path, Navigate: router.Navigate}
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routes := app.Routes(deps)
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vdom.EndCollect() // signals created later (during renders) aren't preserved
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wasmruntime.PreserveState(collector)
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render := func() *vdom.VNode { return app.Shell(deps, routes) }
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if wasmruntime.HasServerContent() {
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wasmruntime.Hydrate(render) // static route: adopt the server-rendered DOM
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} else {
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wasmruntime.Run(render) // client-rendered route
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}
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// Adopt the theme AFTER mounting. The class is already on <html> — the document's
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// boot script put it there before the first paint — so this is not what makes the
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// page dark; it is what makes the SWITCH know which way it is pointing, and what
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// keeps the page following the OS if the user never touched the switch.
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app.Theme.Init()
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}
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