@ccos/webos/src/module/base.js

A Base JavaScript Framework for Skyworth/Coocaa TV

import { callLiteApi } from './nativeApi'

let moduleName = 'base';

let tv_protocol = 'http';
let tv_server = 'localhost';
let tv_port = 32758;

function setDebugModeServer(ipAddr) {
    if (ipAddr) {
        tv_server = ipAddr;
    }
}

export function getUrlBase() {
    return `${tv_protocol}://${tv_server}:${tv_port}`;
}

function call_uapi_inner(path, str) {
    return new Promise((resolve) => {
        try {
            let xhr = new XMLHttpRequest();
            let url = getUrlBase() + path;
            xhr.open("POST", url, true);  //异步
            xhr.setRequestHeader('Content-type', 'application/x-www-form-urlencoded');
            xhr.responseType = 'json';  //如果为text则response为文本 
            xhr.timeout = 60 * 60 * 1000;
            xhr.onreadystatechange = function () {  //绑定响应状态事件监听函数
                if (xhr.readyState == 4) {  //监听readyState状态
                    if (xhr.status == 200 || xhr.status == 0) {  //监听HTTP状态码
                        //console.log(xhr.responseText);  //接收数据
                        //设置responseType为 json 则xhr.response 返回json对象,则不能通过 responseText 取得对象
                        resolve(xhr.response);
                    }
                    else {
                        resolve('error: ' + xhr.status);
                    }
                } else {
                    //
                }
            }
            xhr.onerror = function() {
                //console.error(xhr.statusText);
                resolve('error: ' + xhr.statusText);
            }
            xhr.ontimeout = function() {
                //console.error('The request for ' + url + ' timed out.');
                resolve('error: ' + 'timeout');
            };
            xhr.send(str);  //发送请求
        }
        catch (e) {
            resolve('error: ' + e);
        }
    });
}

export async function call_uapi(path, str) {
    let res = await call_uapi_inner(path, str || '');
    if (typeof res == 'object') {
        return res;
    } else {
        return {
            code: -100000,
            msg: res
        }
    }
}

///////////////////////////////////////////////////////////////////////////////////////////

let eventCallBack = null;

function webosBrowserCallBack(jsonStr) {
    try {
        const jsonObj = JSON.parse(jsonStr);
        if (eventCallBack) {
            eventCallBack(jsonObj);
        }
    }
    catch (e) {}
}

window['webosBrowserCallBack'] = webosBrowserCallBack;

function getBaseInfo() {
    return callLiteApi(moduleName, 'getBaseInfo', '');
}

async function getBaseInfoAsync() {
    await new Promise((resolve) => {
        let ret = getBaseInfo();
        resolve(ret);
    });
}

function registerEventHandler(callback) {
    eventCallBack = callback;
}

function unregisterEventHandler() {
    eventCallBack = null;
}

function setSystemKeyIntercept(keyCodeArray) {
    return callLiteApi(moduleName, 'setSystemKeyIntercept', keyCodeArray);
}

function exitActivity() {
    return callLiteApi(moduleName, 'exitActivity', '');
}

function gotoPreviousPage() {
    return callLiteApi(moduleName, 'gotoPreviousPage', '');
}

function setHome() {
    return callLiteApi(moduleName, 'setHome', '');
}

export default {
    setDebugModeServer,
    getBaseInfo,
    getBaseInfoAsync,
    setSystemKeyIntercept,
    exitActivity,
    gotoPreviousPage,
    setHome,
    //
    registerEventHandler,
    unregisterEventHandler,
};