android-cloud-H5/screenAndroid/WXdraw.js

//蒙版
var canvas_bak = document.getElementById("box");

var winHeight = window.screen.height - window.innerHeight;
var vowidth = window.screen.width;
var topwinHeightDraw = window.screen.height - window.innerHeight + 30; // 计算title top 头部
var numse = window.screen.height;

// 计算title top 头部 连接断开，是否准备重连？
if (numse <= 70) {
	var voheight = window.screen.height - winHeight - 34 - 20
} else {
	var voheight = window.screen.height - topwinHeightDraw - 20
}

// 画笔大小
var resolving = 1; // 1: 竖屏；2：横屏；

var url = window.location.href;
url = url.split('/');

var parameters = GetRequest();
var form = {};

var cardToken = parameters["cardToken"];
cardToken = cardToken && cardToken.replace(/@/g,"=");
form.cardIp = parameters["cardIp"];
form.port = parameters["port"];
form.username = parameters["username"];
form.userCardId = parameters["userCardId"];
form.ip = parameters["ip"];
form.domainName = parameters["domainName"];
var isWSS = true;
var cUrl = isWSS ? "wss://" + form.domainName + "?cardIp=" + form.ip + "&token=" + cardToken : "ws://" + form.domainName + "?cardIp=" + form.ip  + "&token=" + cardToken;
// var cUrl = "wss://192.168.31.198/businessChannel?cardIp=192.168.20.53&token=LDAz32tutqS9wQqi0WlmvJ68/Is83cX+kavJQij1IMRvewgZ1dLvviFZqd4b8gcaR1eLztR/ViRLyyAVvZO7GA==";

var wsss,errorTime = 0;
doConnect();
function throttle(fn, delay) {
	var flag = true;
	errorTime += delay;
	return () => {
		if (!flag) return;
		flag = false;
		timer = setTimeout(() => {
		fn();
		flag = true;
		}, delay);
	};
}

function doConnect() {
	wsss = new WebSocket(cUrl);
	wsss.binaryType = 'arraybuffer';

	wsss.onopen = function () {
		// 获取虚拟场景状态
		var pings = { "type": "getVsStatus" }
		wsss.send(JSON.stringify(pings));
		var bitRate = {
			"data": {
				"bitRate": 1243000
			},
			"type": "bitRate"
		}
		wsss.send(JSON.stringify(bitRate));
		// 获取实时截图
		var screenPic = {
			type: 'getScreenPic',
      data: {
        taskUid: '346789',
        intervalTime: 0
      }
		}
		wsss.send(JSON.stringify(screenPic));
	};
	wsss.onerror = function (evt) {
		wsss.close();
		throttle(doConnect,100);
		if(errorTime > 1000){
			wx.miniProgram.switchTab({
				url: '/pages/home/home'
			})
		}
	};
	wsss.onmessage = function(res) {
		var result = typeof res.data === 'string' ? JSON.parse(res.data) : res.data
		if (result.type === 'cutting') {
			if (result.data.status === 0) {
				$.toast('复制成功', "text");
			} else {
				$.toast(result.msg, "text");
			}
			return
		}
		var unit8Arr = new Uint8Array(result);
		if (unit8Arr[0] == 0x68 && unit8Arr[1] == 0x09) {
			unit8Arr = unit8Arr.slice(12,unit8Arr.length-2);
			var base64 = 'data:image/jpg;base64,' + window.btoa(String.fromCharCode(...new Uint8Array(unit8Arr)));
			$(".loading_sceen_pic").attr('src', base64)
		}
	}
}

$('body').on("click", function () {
	draw_graph('pencil');
})
//剪切板
$(".upload").on("click", function () {
	var texts = $(this).attr("data-text")
	if (texts == "uploads") {
		$(".mainbox").css({
			"display": "block"
		})
		$(".sbox").css({
			"display": "none"
		})
	}
})

//home 控制home
$(".botmat1img").on("click", function () {
	var codes = $(this).attr("data-text")
	if (codes == "home") {
		wsss.send(ExexuteKeyBoard(3));
	} else if (codes == "return") {
		wsss.send(ExexuteKeyBoard(4));
	} else if (codes == "gengduo") {
		wsss.send(ExexuteKeyBoard(187));
	}

})
//高清控制
$(".PictureQuality").on("click", function () {
	$(this).addClass("avit").siblings().removeClass('avit')
	var id = $(this).attr("data-id")
	var bitRate = {
		"data": {
			"bitRate": id
		},
		"type": "bitRate"
	}
	wsss.send(JSON.stringify(bitRate))
})
var ongoingTouches = [];
//画图形
var draw_graph = function (graphType, obj) {
	//把蒙版放于画板上面
	$("#container").css("z-index", 30);
	$("#dedit").css("z-index", 20);
	var canDraw = false;
	//鼠标按下获取 开始xy开始画图
	var touchstart = function (e) {
		$('.control-right-img').attr({
			"data-id": "2"
		})
		$(".leftmains").css({
			"right": "-4rem"
		})
		var touchfor = e.originalEvent.changedTouches[0]; //for 的手指数组
		ongoingTouches.push(touchfor);
		var acrossWidthX = touchfor.pageY * (1280 / voheight);
		var acrossHeightY = 720 - touchfor.pageX * (720 / vowidth);
		var verticalWidthX = touchfor.pageX * (720 / vowidth);
		var verticalHeightY = touchfor.pageY * (1280 / voheight);
		//是否横屏
		var ping = resolving == 0 ? 
			{"data":{"action": 0, "count": ongoingTouches.length, "id": touchfor.identifier, "x": acrossWidthX.toFixed(2), "y": acrossHeightY.toFixed(2)},"type": "event"} :
				{"data":{"action": 0, "count": ongoingTouches.length, "id": touchfor.identifier, "x": verticalWidthX.toFixed(2), "y": verticalHeightY.toFixed(2)},"type": "event"};
		wsss.send(JSON.stringify(ping));
		canDraw = true;
	};

	//鼠标离开 把蒙版canvas的图片生成到canvas中
	var touchend = function (e) {
		var touchfor = e.originalEvent.changedTouches[0]; //for 的手指数组
		var acrossWidthX = touchfor.pageY * (1280 / voheight);
		var acrossHeightY = 720 - touchfor.pageX * (720 / vowidth);
		var verticalWidthX = touchfor.pageX * (720 / vowidth);
		var verticalHeightY = touchfor.pageY * (1280 / voheight);
		//是否横屏
		var ping = resolving == 0 ? 
			{"data":{"action": 1, "count": ongoingTouches.length, "id": touchfor.identifier, "x": acrossWidthX.toFixed(2), "y": acrossHeightY.toFixed(2)},"type": "event"} :
				{"data":{"action": 1, "count": ongoingTouches.length, "id": touchfor.identifier, "x": verticalWidthX.toFixed(2), "y": verticalHeightY.toFixed(2)},"type": "event"};
		wsss.send(JSON.stringify(ping));
		ongoingTouches.splice(touchfor.identifier, 1);
		canDraw = false;
	};

	//清空层 云手机超出屏幕的开关
	var clearContext = function () {
		canDraw = false;
	}

	// 鼠标移动
	var touchmove = function (e) {
		e = e || window.event;
		var touchfor =  e.originalEvent.changedTouches[0]; //for 的手指数组
		var acrossWidthX = touchfor.pageY * (1280 / voheight);
		var acrossHeightY = 720 - touchfor.pageX * (720 / vowidth);
		var verticalWidthX = touchfor.pageX * (720 / vowidth);
		var verticalHeightY = touchfor.pageY * (1280 / voheight);
		var ping = resolving == 0 ? 
			{"data":{"action": 2, "count": ongoingTouches.length, "id": touchfor.identifier, "x": acrossWidthX.toFixed(2), "y": acrossHeightY.toFixed(2)},"type": "event"} :
				{"data":{"action": 2, "count": ongoingTouches.length, "id": touchfor.identifier, "x": verticalWidthX.toFixed(2), "y": verticalHeightY.toFixed(2)},"type": "event"};
		wsss.send(JSON.stringify(ping));
	};

	//鼠标离开区域以外 除了涂鸦 都清空
	var mouseout = function () {
		if (graphType != 'handwriting') {
			clearContext();
		}
	}

	$(canvas_bak).unbind();
	$(canvas_bak).bind('touchstart', touchstart);
	$(canvas_bak).bind('touchmove', touchmove);
	$(canvas_bak).bind('touchend', touchend);
	$(canvas_bak).bind('mouseout', mouseout);
}

// 获取url中"?"符后的字串
function GetRequest() {
	var url = location.search;
	var obj = new Object();
	if (url.indexOf("?") != -1) {
		var str = url.substr(1);
		strs = str.split("&");
		for (var i = 0; i < strs.length; i++) {
			obj[strs[i].split("=")[0]] = (strs[i].split("=")[1]);
		}
	}
	return obj;
}