mapcomplete/src/index.ts

56 lines
2.1 KiB
TypeScript

import DetermineLayout from "./Logic/DetermineLayout"
import ThemeViewState from "./Models/ThemeViewState"
import SvelteUIElement from "./UI/Base/SvelteUIElement"
import ThemeViewGUI from "./UI/ThemeViewGUI.svelte"
import { FixedUiElement } from "./UI/Base/FixedUiElement"
import Combine from "./UI/Base/Combine"
import { SubtleButton } from "./UI/Base/SubtleButton"
import { Utils } from "./Utils"
import Download from "./assets/svg/Download.svelte"
function webgl_support() {
try {
const canvas = document.createElement("canvas")
return (
!!window.WebGLRenderingContext &&
(canvas.getContext("webgl") || canvas.getContext("experimental-webgl"))
)
} catch (e) {
return false
}
}
// @ts-ignore
try {
if (!webgl_support()) {
throw "WebGL is not supported or not enabled. This is essential for MapComplete to function, please enable this."
}
DetermineLayout.GetLayout()
.then((layout) => {
const state = new ThemeViewState(layout)
const main = new SvelteUIElement(ThemeViewGUI, { state })
main.AttachTo("maindiv")
})
.catch((err) => {
console.error("Error while initializing: ", err, err.stack)
const customDefinition = DetermineLayout.getCustomDefinition()
new Combine([
new FixedUiElement(err).SetClass("block alert"),
customDefinition?.length > 0
? new SubtleButton(
new SvelteUIElement(Download),
"Download the raw file"
).onClick(() =>
Utils.offerContentsAsDownloadableFile(
DetermineLayout.getCustomDefinition(),
"mapcomplete-theme.json",
{ mimetype: "application/json" }
)
)
: undefined,
]).AttachTo("maindiv")
})
} catch (err) {
new FixedUiElement(err).SetClass("block alert").AttachTo("maindiv")
}