@etsoo/appscript/lib/mjs/bridges/FlutterHost.js

Applications shared TypeScript framework

import { ExtendUtils } from "@etsoo/shared";
import { BridgeHostName } from "./IBridgeHost";
/**
 * Flutter JavaScript Host
 * https://inappwebview.dev/docs/javascript/communication/
 */
export class FlutterHost {
    /**
     * Constructor
     * @param callHandler Call handler
     */
    constructor(host) {
        this.host = host;
        /**
         * Name
         */
        this.name = BridgeHostName.Flutter;
        /**
         * Cached commands
         */
        this.cachedCommands = {};
        window.addEventListener("flutterInAppWebViewPlatformReady", (_event) => {
            if (this.host.callHandler == null)
                return;
            for (const key in this.cachedCommands) {
                // Args
                const args = this.cachedCommands[key];
                // Execute
                this.host.callHandler(key, ...args);
                // Remove the key
                delete this.cachedCommands[key];
            }
        });
    }
    cacheCommand(name, ...args) {
        this.cachedCommands[name] = args;
    }
    changeCulture(locale) {
        if (this.host.callHandler)
            this.host.callHandler("changeCulture", locale);
        else
            this.cacheCommand("changeCulture", locale);
    }
    closable() {
        return false;
    }
    exit() {
        if (this.host.callHandler)
            this.host.callHandler("exit");
        else
            this.cacheCommand("exit");
    }
    async getLabels(...keys) {
        // Try 500 miliseconds
        let count = 5;
        while (this.host.callHandler == null) {
            count--;
            await ExtendUtils.sleep(100);
            if (count === 0)
                break;
        }
        const init = {};
        if (this.host.callHandler == null)
            return init;
        const result = (await this.host.callHandler("getLabels")) ?? {};
        return keys.reduce((a, v) => ({
            ...a,
            [v]: result[v] ?? ""
        }), init);
    }
    getStartUrl() {
        return this.startUrl;
    }
    loadApp(name, startUrl) {
        this.startUrl = startUrl;
        if (this.host.callHandler)
            this.host.callHandler("loadApp", name, startUrl);
        else
            this.cacheCommand("loadApp", name, startUrl);
    }
    userAuthorization(authorized) {
        if (this.host.callHandler)
            this.host.callHandler("userAuthorization", authorized);
        else
            this.cacheCommand("userAuthorization", authorized);
    }
    onUpdate(func) { }
    setTitle(title) { }
}