关于h5纯网页（非微信环境）扫二维码扫码实现的探索研究

function ajaxFileUploaddeqr() {
    $("#deqr_result").hide(),
    $(".deqr_prompt").hide(),
    $(".deqr_loading").show(),
    seajs.use(["lib/plug/ajaxfileupload", "uploadfile/uploaddeqr"],
    function(e, t) {
        t.ajaxFileUpload()
    })
}
function checkURL(e) {
    var t = e,
    n = /http(s)?://([\w-]+.)+[\w-]+(/[\w- ./?%&=]*)?/,
    a = new RegExp(n);
    return 1 == a.test(t) ? !0 : !1
}
var oldIE;
$(function() {
    function e() {
        n.onScan = function(e, t) {
            var a = "";
            if (!e) if ("onlineScan" === t.type && 1 === t.data.status) {
                var a = t.data.info.data[0];
                n.stopScan(!1),
                $(".scanner").hide(),
                $("#scan-content").show().text(a),
                $("#continueToScan").show(),
                $("#copyResultBtn").show(),
                $("#htmlScanModal .modal-footer").show()
            } else if ("webScan" === t.type && t.data) {
                var a = t.data.data;
                n.stopScan(!1),
                $(".scanner").hide(),
                $("#scan-content").show().text(a),
                $("#continueToScan").show(),
                $("#copyResultBtn").show(),
                $("#htmlScanModal .modal-footer").show()
            }
        },
        n.scan(document.querySelector("#scanVideo")),
        $(".scanner").show(),
        $("#continueToScan").hide(),
        $("#scan-content").hide(),
        $("#copyResultBtn").hide(),
        $("#htmlScanModal").modal("show"),
        $("#htmlScanModal .modal-footer").hide()
    }
    $("html").is(".lt-ie9") && (oldIE = !0),
    oldIE && $('input[type="text"], textarea').placeholder();
    var t = document.documentElement.clientHeight - 70 - 360;
    $("#warper").css("min-height", t + "px"),
    $(document).click(function(e) {
        $(".deqr_url").is(e.target) || $(".deqr_url").has(e.target).length > 0 || "" != $("#deqr_urls").val() ? ($("#deqr_url_show").removeClass("none"), $("#qr-url").hide()) : ($("#deqr_url_show").addClass("none"), $("#qr-url").show())
    }),
    $("#deqr_url_btn").click(function() {
        var e = $("#deqr_urls").val();
        e.indexOf("http://") < 0 && e.indexOf("https://") < 0 && $("#deqr_urls").val("http://" + e),
        $("#deqr_result").hide(),
        $(".deqr_prompt").hide(),
        $("#modal-alert-deqr-result").modal("show"),
        $(".deqr_loading").show();
        var e = $("#deqr_urls").val();
        $.post("/Api/Browser/deqr", {
            data: e
        },
        function(e) {
            1 == e.status ? ($(".deqr_loading").hide(), $("p#deqrresult").text(e.data.RawData), $("#deqr_result").show()) : ($(".deqr_loading").hide(), alert(e.data.info), $(".deqr_prompt").show())
        },
        "json")
    });
    var n = null;
    $("#toggleToFlash").click(function() {
        $("#htmlScanModal").modal("hide"),
        n.stopScan(!1),
        seajs.use("m/deqrCamera",
        function(e) {
            e.openCamera()
        })
    }),
    $("#stopScan").click(function() {
        $("#htmlScanModal").modal("hide")
    }),
    $("#copyResultBtn").click(function() {
        if (!window.getSelection || !document.createRange) return void alert("您的浏览器不支持复制功能");
        var e = window.getSelection();
        e.removeAllRanges();
        var t = document.createRange();
        t.selectNodeContents($("#scan-content")[0]),
        e.addRange(t),
        document.execCommand("copy"),
        alert("复制成功")
    }),
    $("#continueToScan").click(function() {
        e()
    }),
    $("#htmlScanModal").on("hide.bs.modal",
    function() {
        setTimeout(function() {
            n.stopScan(!1)
        },
        300)
    }),
    $("#deqrcamera").click(function() {
        try {
            if (n = new $QRCodeScanner, n.canIUse()) return n.openWebScan = !0,
            n.scanFrequency = 1e3,
            void e();
            throw Error("Can not use cam to scan.")
        } catch(t) {
            seajs.use("m/deqrCamera",
            function(e) {
                e.openCamera()
            })
        }
    }),
    $("input#filedatacode").click(function() {
        var e = $(this).attr("uptype");
        seajs.use(["//static.clewm.net/public/upload.js?v=20170503", "m/upload"],
        function(t, n) {
            n.upload(e)
        })
    })
});