tencent-qqnews-user/src/modules/post.js

用于在腾讯新闻客户端中进行登录、获取用户信息和提交请求等操作

import {os} from './common';

/**
 * 新闻客户端内的请求
 */
async function newsPost({
	url='', 
	data={},
	success=()=>{},
	error=()=>{},
	complete=()=>{}
}){
	await this.ready();

	let postCallBack = 'postCallBack'+this.counter;
	let errorCallback = 'errorCallback'+this.counter;
	this.counter++;

    
	let result = new Promise((resolve, reject)=>{
		window[errorCallback] = ()=>{
			error( new Error('url: '+url+' post error'), url );
			reject( new Error('url: '+url+' post error'), url );
			complete( new Error('url: '+url+' post error'), url );
			this.postError( new Error('url: '+url+' post error'), url );
			delete window[errorCallback];
			delete window[postCallBack];
		};

		window[postCallBack] = (result, cc)=>{
			if( !os.android ){
				if( !result ){
					window[errorCallback]();
					return false;
				}else{
					result = cc;
				}
			}

			success( JSON.parse(result) );
			resolve( JSON.parse(result) );
			complete( null, url, JSON.parse(result) );
			this.postSuccess( null, url, JSON.parse(result) );
			delete window[postCallBack];
			delete window[errorCallback];
		};
	});

	if( !os.android ){
		window.TencentNews.post && window.TencentNews.post(url, data, window[postCallBack], {'loginType':'qqorweixin'}, {});
	}else{
		window.TencentNews.postData && window.TencentNews.postData(url, JSON.stringify(data), postCallBack, errorCallback);
	}
	return result;
}

/**
 * 网页端的请求
 */
function fetch ({
	url='', 
	data={},
	success=()=>{},
	error=()=>{},
	complete=()=>{}
}) {
	let target = document.getElementsByTagName('script')[0] || document.head;
	let fecthCallBack = 'fetchCallBack' + ('' + Date.now()).substr(-8) + '_' + ('' + Math.random()).substr(-8);
	let timeout = 6000;
	let script;
	let timer;

	let cleanup = () => {
		if (script.parentNode) script.parentNode.removeChild(script);
		window[fecthCallBack] = () => {};
		delete window[fecthCallBack];
		if (timer) clearTimeout(timer);
	};

	// 将Object类型的数据转换为URL链接需要的参数
	let paramObj = (params)=>{
		let str = '',
			key, item;
		for (key in params) {
			if (typeof params[key] === 'object') {
				item = JSON.stringify(params[key]);
			} else {
				item = params[key];
			}
			str += `&${key}=${encodeURIComponent(item)}`;
		}
		return str.substring(1);
	};

	url += (~url.indexOf('?') ? '&' : '?') + paramObj(data) + '&callback=' + fecthCallBack;

	// create script
	script = document.createElement('script');
	script.src = url;
	target.parentNode.insertBefore(script, target);

	return new Promise((resolve, reject) => {
		window[fecthCallBack] = function (data) {
			cleanup();
			success(data);
			complete(null, data);
			resolve(data);
		};

		if (timeout) {
			timer = setTimeout(() => {
				cleanup();
				error(new Error('Timeout'), url);
				reject(new Error('Timeout'));
			}, timeout);
		}
	});
}

export default (argv, params)=>{
	let url = '',
		data = {a:'1'},
		success = function(){},
		error = function(){},
		complete = function(){};
		
	if( typeof argv==='object' && argv.url ){
		url = argv.url;
	}else if( typeof argv==='string' ){
		url = argv;
		if(typeof params==='object'){
			argv = params;
		}
	}
	if(!url){
		return Promise.reject(new TypeError('url must be needed'));
	}

	if( typeof argv==='object' ){
		if( typeof argv['data']==='object' ){
			data = argv['data'];
		}
		if( typeof argv['success']==='function' ){
			success = argv['success'];
		}
		if( typeof argv['error']==='function' ){
			error = argv['error'];
		}
		if( typeof argv['complete']==='function' ){
			complete = argv['complete'];
		}
	}

	if( os.qqnews ){
		return newsPost({url, data, success, error, complete});
	}else{
		return fetch({url, data, success, error, complete});
	}
};