dxt/WebRoot/app/lib/flexible.js

! function (e, t) {
    function i() {
        var t = n.getBoundingClientRect().width / 10;
        n.style.fontSize = t + "px", p.rem = e.rem = t
    }
    var a, r = e.document,
        n = r.documentElement,
        o = r.querySelector('meta[name="viewport"]'),
        l = r.querySelector('meta[name="flexible"]'),
        m = r.querySelector('meta[name="flexible-in-x5"]'),
        s = !0,
        d = 0,
        c = 0,
        p = t.flexible || (t.flexible = {});
    if (o) {
        console.warn("将根据已有的meta标签来设置缩放比例");
        var u = o.getAttribute("content").match(/initial\-scale=([\d\.]+)/);
        u && (c = parseFloat(u[1]), d = parseInt(1 / c))
    } else if (l) {
        var f = l.getAttribute("content");
        if (f) {
            var h = f.match(/initial\-dpr=([\d\.]+)/),
                v = f.match(/maximum\-dpr=([\d\.]+)/);
            h && (d = parseFloat(h[1]), c = parseFloat((1 / d).toFixed(2))), v && (d = parseFloat(v[1]), c = parseFloat((1 / d).toFixed(2)))
        }
    }
    if (m && (s = "false" !== m.getAttribute("content")), !d && !c) {
        var x = (e.navigator.appVersion.match(/android/gi), e.chrome),
            g = e.navigator.appVersion.match(/iphone/gi),
            b = e.devicePixelRatio,
            w = /TBS\/\d+/.test(e.navigator.userAgent),
            y = !1;
        try {
            y = "true" === localStorage.getItem("IN_FLEXIBLE_WHITE_LIST")
        } catch (e) {
            y = !1
        }
        c = 1 / (d = g || x || w && s && y ? b >= 3 && (!d || d >= 3) ? 3 : b >= 2 && (!d || d >= 2) ? 2 : 1 : 1)
    }
    if (n.setAttribute("data-dpr", d), !o)
        if ((o = r.createElement("meta")).setAttribute("name", "viewport"), o.setAttribute("content", "initial-scale=" + c + ", maximum-scale=" + c + ", minimum-scale=" + c + ", user-scalable=no"), n.firstElementChild) n.firstElementChild.appendChild(o);
        else {
            var E = r.createElement("div");
            E.appendChild(o), r.write(E.innerHTML)
        }
    e.addEventListener("resize", function () {
        clearTimeout(a), a = setTimeout(i, 300)
    }, !1), e.addEventListener("pageshow", function (e) {
        e.persisted && (clearTimeout(a), a = setTimeout(i, 300))
    }, !1), "complete" === r.readyState ? r.body.style.fontSize = 12 * d + "px" : r.addEventListener("DOMContentLoaded", function (e) {
        r.body.style.fontSize = 12 * d + "px"
    }, !1), i(), p.dpr = e.dpr = d, p.refreshRem = i, p.rem2px = function (e) {
        var t = parseFloat(e) * this.rem;
        return "string" == typeof e && e.match(/rem$/) && (t += "px"), t
    }, p.px2rem = function (e) {
        var t = parseFloat(e) / this.rem;
        return "string" == typeof e && e.match(/px$/) && (t += "rem"), t
    }
}(window, window.lib || (window.lib = {}))