MapComplete/src/Logic/Web/AndroidPolyfill.ts

65 lines
2.7 KiB
TypeScript

/**
* The Android Polyfill will attempt to communicate with the Anrdoid Shell.
* If this is successful, it will patch some webAPIs
*/
import { registerPlugin } from "@capacitor/core"
import { Store, UIEventSource } from "../UIEventSource"
import { OsmConnection } from "../Osm/OsmConnection"
export interface DatabridgePlugin {
request(options: { key: string }): Promise<{ value: string | object }>;
}
const DatabridgePluginSingleton = registerPlugin<DatabridgePlugin>("Databridge", {
web: () => {
return <DatabridgePlugin>{
async request(options: { key: string }): Promise<{ value: string | object }> {
return { value: "web" }
},
}
},
})
export class AndroidPolyfill {
private readonly databridgePlugin: DatabridgePlugin = DatabridgePluginSingleton
private static readonly _inAndroid: UIEventSource<boolean> = new UIEventSource<boolean>(false)
public static readonly inAndroid: Store<boolean> = AndroidPolyfill._inAndroid
private static readonly _geolocationPermission: UIEventSource<"granted" | "denied" | "prompt"> = new UIEventSource("prompt")
public static readonly geolocationPermission: Store<"granted" | "denied" | "prompt"> = this._geolocationPermission
/**
* Registers 'navigator.'
* @private
*/
private backfillGeolocation(databridgePlugin: DatabridgePlugin) {
const origQueryFunc = navigator?.permissions?.query
const src = UIEventSource.FromPromise(databridgePlugin.request({ key: "location:request-permission" }))
src.addCallbackAndRunD(permission => {
AndroidPolyfill._geolocationPermission.set(<"granted" | "denied">permission.value)
})
}
public async init() {
console.log("Sniffing shell version")
const shell = await this.databridgePlugin.request({ key: "meta" })
if (shell.value === "web") {
console.log("Not initing Android polyfill as not in a shell; web detected")
return
}
AndroidPolyfill._inAndroid.set(true)
console.log("Detected shell:", shell.value)
this.backfillGeolocation(this.databridgePlugin)
}
public static async requestLoginCodes(osmConnection: OsmConnection) {
const result = await DatabridgePluginSingleton.request({ key: "request:login" })
const code: string = result["code"]
const state: string = result["state"]
console.log("AndroidPolyfill: received code and state; trying to pass them to the oauth lib")
window.location.search = "?code=" + code + "&state=" + state
osmConnection.finishLogin((oldLocation) => {
console.log("Login should be completed, oldLocation is", oldLocation)
})
}
}