/*
 * @Author: mycm
 * @Email: afeizt@163.com
 * @QQ: 57725649
 * @Date: 2022-04-26
 * @LastEditors: mycm
 * @Description: file content
 */
( function ( doc, win ) {

	// 监听 orientation changes
	var angle, dir;
	if ( "orientation" in screen ) {
		angle == screen.orientation.angle;
	} else if ( "orientation" in window ) {
		angle = window.orientation.angle;
	} else { angle = 0; }
	dir = 0


	window.addEventListener( "orientationchange", function ( event ) {
		// 根据event.orientation|screen.orientation.angle等于0|180、90|-90度来判断横竖屏
		//alert( screen.orientation.angle );
		if ( dir == 90 || dir == -90 ) {
			dir = 1;
		}

	}, false );

	var docEl = doc.documentElement;//documentElement 属性是根节点
	resizeEvt = 'orientationchange' in window ? 'orientationchange' : 'resize';
	recalc = function () {
		var body = document.getElementsByTagName( 'body' )[ 0 ];
		var bodyClass = body.className;
		var designWidth = 1903;
		if ( bodyClass.indexOf( "mobile" ) !== -1 ) {
			if ( dir == 0 ) {
				designWidth = 350;
			} else {
				designWidth = 1903;
			}

		} else {
			designWidth = 1903;
		}
		var clientWidth = docEl.clientWidth;


		if ( !clientWidth ) return;
		// console.log( clientWidth, designWidth )
		docEl.style.fontSize = 16 * ( clientWidth / designWidth ) + 'px';//设置html根元素的font-size
		if ( 16 * ( clientWidth / designWidth ) < 10 ) {
			// body.style.fontSize = '16px'
			// docEl.style.fontSize = '8px';//设置html根元素的font-size
		} else {

		}

	};

	if ( !doc.addEventListener ) return;
	win.addEventListener( resizeEvt, recalc, true );
	doc.addEventListener( 'DOMContentLoaded', recalc, false );

} )( document, window );