//! moment.js //! version : 2.9.0 //! authors : Tim Wood, Iskren Chernev, Moment.js contributors //! license : MIT //! momentjs.com (function (a) { function b(a, b, c) { switch (arguments.length) { case 2: return null != a ? a : b; case 3: return null != a ? a : null != b ? b : c; default: throw new Error("Implement me") } } function c(a, b) { return Bb.call(a, b) } function d() { return { empty: !1, unusedTokens: [], unusedInput: [], overflow: -2, charsLeftOver: 0, nullInput: !1, invalidMonth: null, invalidFormat: !1, userInvalidated: !1, iso: !1 } } function e(a) { vb.suppressDeprecationWarnings === !1 && "undefined" != typeof console && console.warn && console.warn("Deprecation warning: " + a) } function f(a, b) { var c = !0; return o(function () { return c && (e(a), c = !1), b.apply(this, arguments) }, b) } function g(a, b) { sc[a] || (e(b), sc[a] = !0) } function h(a, b) { return function (c) { return r(a.call(this, c), b) } } function i(a, b) { return function (c) { return this.localeData().ordinal(a.call(this, c), b) } } function j(a, b) { var c, d, e = 12 * (b.year() - a.year()) + (b.month() - a.month()), f = a.clone().add(e, "months"); return 0 > b - f ? (c = a.clone().add(e - 1, "months"), d = (b - f) / (f - c)) : (c = a.clone().add(e + 1, "months"), d = (b - f) / (c - f)), -(e + d) } function k(a, b, c) { var d; return null == c ? b : null != a.meridiemHour ? a.meridiemHour(b, c) : null != a.isPM ? (d = a.isPM(c), d && 12 > b && (b += 12), d || 12 !== b || (b = 0), b) : b } function l() { } function m(a, b) { b !== !1 && H(a), p(this, a), this._d = new Date(+a._d), uc === !1 && (uc = !0, vb.updateOffset(this), uc = !1) } function n(a) { var b = A(a), c = b.year || 0, d = b.quarter || 0, e = b.month || 0, f = b.week || 0, g = b.day || 0, h = b.hour || 0, i = b.minute || 0, j = b.second || 0, k = b.millisecond || 0; this._milliseconds = +k + 1e3 * j + 6e4 * i + 36e5 * h, this._days = +g + 7 * f, this._months = +e + 3 * d + 12 * c, this._data = {}, this._locale = vb.localeData(), this._bubble() } function o(a, b) { for (var d in b) c(b, d) && (a[d] = b[d]); return c(b, "toString") && (a.toString = b.toString), c(b, "valueOf") && (a.valueOf = b.valueOf), a } function p(a, b) { var c, d, e; if ("undefined" != typeof b._isAMomentObject && (a._isAMomentObject = b._isAMomentObject), "undefined" != typeof b._i && (a._i = b._i), "undefined" != typeof b._f && (a._f = b._f), "undefined" != typeof b._l && (a._l = b._l), "undefined" != typeof b._strict && (a._strict = b._strict), "undefined" != typeof b._tzm && (a._tzm = b._tzm), "undefined" != typeof b._isUTC && (a._isUTC = b._isUTC), "undefined" != typeof b._offset && (a._offset = b._offset), "undefined" != typeof b._pf && (a._pf = b._pf), "undefined" != typeof b._locale && (a._locale = b._locale), Kb.length > 0) for (c in Kb) d = Kb[c], e = b[d], "undefined" != typeof e && (a[d] = e); return a } function q(a) { return 0 > a ? Math.ceil(a) : Math.floor(a) } function r(a, b, c) { for (var d = "" + Math.abs(a), e = a >= 0; d.length < b;) d = "0" + d; return (e ? c ? "+" : "" : "-") + d } function s(a, b) { var c = { milliseconds: 0, months: 0 }; return c.months = b.month() - a.month() + 12 * (b.year() - a.year()), a.clone().add(c.months, "M").isAfter(b) && --c.months, c.milliseconds = +b - +a.clone().add(c.months, "M"), c } function t(a, b) { var c; return b = M(b, a), a.isBefore(b) ? c = s(a, b) : (c = s(b, a), c.milliseconds = -c.milliseconds, c.months = -c.months), c } function u(a, b) { return function (c, d) { var e, f; return null === d || isNaN(+d) || (g(b, "moment()." + b + "(period, number) is deprecated. Please use moment()." + b + "(number, period)."), f = c, c = d, d = f), c = "string" == typeof c ? +c : c, e = vb.duration(c, d), v(this, e, a), this } } function v(a, b, c, d) { var e = b._milliseconds, f = b._days, g = b._months; d = null == d ? !0 : d, e && a._d.setTime(+a._d + e * c), f && pb(a, "Date", ob(a, "Date") + f * c), g && nb(a, ob(a, "Month") + g * c), d && vb.updateOffset(a, f || g) } function w(a) { return "[object Array]" === Object.prototype.toString.call(a) } function x(a) { return "[object Date]" === Object.prototype.toString.call(a) || a instanceof Date } function y(a, b, c) { var d, e = Math.min(a.length, b.length), f = Math.abs(a.length - b.length), g = 0; for (d = 0; e > d; d++) (c && a[d] !== b[d] || !c && C(a[d]) !== C(b[d])) && g++; return g + f } function z(a) { if (a) { var b = a.toLowerCase().replace(/(.)s$/, "$1"); a = lc[a] || mc[b] || b } return a } function A(a) { var b, d, e = {}; for (d in a) c(a, d) && (b = z(d), b && (e[b] = a[d])); return e } function B(b) { var c, d; if (0 === b.indexOf("week")) c = 7, d = "day"; else { if (0 !== b.indexOf("month")) return; c = 12, d = "month" } vb[b] = function (e, f) { var g, h, i = vb._locale[b], j = []; if ("number" == typeof e && (f = e, e = a), h = function (a) { var b = vb().utc().set(d, a); return i.call(vb._locale, b, e || "") }, null != f) return h(f); for (g = 0; c > g; g++) j.push(h(g)); return j } } function C(a) { var b = +a, c = 0; return 0 !== b && isFinite(b) && (c = b >= 0 ? Math.floor(b) : Math.ceil(b)), c } function D(a, b) { return new Date(Date.UTC(a, b + 1, 0)).getUTCDate() } function E(a, b, c) { return jb(vb([a, 11, 31 + b - c]), b, c).week } function F(a) { return G(a) ? 366 : 365 } function G(a) { return a % 4 === 0 && a % 100 !== 0 || a % 400 === 0 } function H(a) { var b; a._a && -2 === a._pf.overflow && (b = a._a[Db] < 0 || a._a[Db] > 11 ? Db : a._a[Eb] < 1 || a._a[Eb] > D(a._a[Cb], a._a[Db]) ? Eb : a._a[Fb] < 0 || a._a[Fb] > 24 || 24 === a._a[Fb] && (0 !== a._a[Gb] || 0 !== a._a[Hb] || 0 !== a._a[Ib]) ? Fb : a._a[Gb] < 0 || a._a[Gb] > 59 ? Gb : a._a[Hb] < 0 || a._a[Hb] > 59 ? Hb : a._a[Ib] < 0 || a._a[Ib] > 999 ? Ib : -1, a._pf._overflowDayOfYear && (Cb > b || b > Eb) && (b = Eb), a._pf.overflow = b) } function I(b) { return null == b._isValid && (b._isValid = !isNaN(b._d.getTime()) && b._pf.overflow < 0 && !b._pf.empty && !b._pf.invalidMonth && !b._pf.nullInput && !b._pf.invalidFormat && !b._pf.userInvalidated, b._strict && (b._isValid = b._isValid && 0 === b._pf.charsLeftOver && 0 === b._pf.unusedTokens.length && b._pf.bigHour === a)), b._isValid } function J(a) { return a ? a.toLowerCase().replace("_", "-") : a } function K(a) { for (var b, c, d, e, f = 0; f < a.length;) { for (e = J(a[f]).split("-"), b = e.length, c = J(a[f + 1]), c = c ? c.split("-") : null; b > 0;) { if (d = L(e.slice(0, b).join("-"))) return d; if (c && c.length >= b && y(e, c, !0) >= b - 1) break; b-- } f++ } return null } function L(a) { var b = null; if (!Jb[a] && Lb) try { b = vb.locale(), require("./locale/" + a), vb.locale(b) } catch (c) { } return Jb[a] } function M(a, b) { var c, d; return b._isUTC ? (c = b.clone(), d = (vb.isMoment(a) || x(a) ? +a : +vb(a)) - +c, c._d.setTime(+c._d + d), vb.updateOffset(c, !1), c) : vb(a).local() } function N(a) { return a.match(/\[[\s\S]/) ? a.replace(/^\[|\]$/g, "") : a.replace(/\\/g, "") } function O(a) { var b, c, d = a.match(Pb); for (b = 0, c = d.length; c > b; b++) d[b] = rc[d[b]] ? rc[d[b]] : N(d[b]); return function (e) { var f = ""; for (b = 0; c > b; b++) f += d[b] instanceof Function ? d[b].call(e, a) : d[b]; return f } } function P(a, b) { return a.isValid() ? (b = Q(b, a.localeData()), nc[b] || (nc[b] = O(b)), nc[b](a)) : a.localeData().invalidDate() } function Q(a, b) { function c(a) { return b.longDateFormat(a) || a } var d = 5; for (Qb.lastIndex = 0; d >= 0 && Qb.test(a) ;) a = a.replace(Qb, c), Qb.lastIndex = 0, d -= 1; return a } function R(a, b) { var c, d = b._strict; switch (a) { case "Q": return _b; case "DDDD": return bc; case "YYYY": case "GGGG": case "gggg": return d ? cc : Tb; case "Y": case "G": case "g": return ec; case "YYYYYY": case "YYYYY": case "GGGGG": case "ggggg": return d ? dc : Ub; case "S": if (d) return _b; case "SS": if (d) return ac; case "SSS": if (d) return bc; case "DDD": return Sb; case "MMM": case "MMMM": case "dd": case "ddd": case "dddd": return Wb; case "a": case "A": return b._locale._meridiemParse; case "x": return Zb; case "X": return $b; case "Z": case "ZZ": return Xb; case "T": return Yb; case "SSSS": return Vb; case "MM": case "DD": case "YY": case "GG": case "gg": case "HH": case "hh": case "mm": case "ss": case "ww": case "WW": return d ? ac : Rb; case "M": case "D": case "d": case "H": case "h": case "m": case "s": case "w": case "W": case "e": case "E": return Rb; case "Do": return d ? b._locale._ordinalParse : b._locale._ordinalParseLenient; default: return c = new RegExp($(Z(a.replace("\\", "")), "i")) } } function S(a) { a = a || ""; var b = a.match(Xb) || [], c = b[b.length - 1] || [], d = (c + "").match(jc) || ["-", 0, 0], e = +(60 * d[1]) + C(d[2]); return "+" === d[0] ? e : -e } function T(a, b, c) { var d, e = c._a; switch (a) { case "Q": null != b && (e[Db] = 3 * (C(b) - 1)); break; case "M": case "MM": null != b && (e[Db] = C(b) - 1); break; case "MMM": case "MMMM": d = c._locale.monthsParse(b, a, c._strict), null != d ? e[Db] = d : c._pf.invalidMonth = b; break; case "D": case "DD": null != b && (e[Eb] = C(b)); break; case "Do": null != b && (e[Eb] = C(parseInt(b.match(/\d{1,2}/)[0], 10))); break; case "DDD": case "DDDD": null != b && (c._dayOfYear = C(b)); break; case "YY": e[Cb] = vb.parseTwoDigitYear(b); break; case "YYYY": case "YYYYY": case "YYYYYY": e[Cb] = C(b); break; case "a": case "A": c._meridiem = b; break; case "h": case "hh": c._pf.bigHour = !0; case "H": case "HH": e[Fb] = C(b); break; case "m": case "mm": e[Gb] = C(b); break; case "s": case "ss": e[Hb] = C(b); break; case "S": case "SS": case "SSS": case "SSSS": e[Ib] = C(1e3 * ("0." + b)); break; case "x": c._d = new Date(C(b)); break; case "X": c._d = new Date(1e3 * parseFloat(b)); break; case "Z": case "ZZ": c._useUTC = !0, c._tzm = S(b); break; case "dd": case "ddd": case "dddd": d = c._locale.weekdaysParse(b), null != d ? (c._w = c._w || {}, c._w.d = d) : c._pf.invalidWeekday = b; break; case "w": case "ww": case "W": case "WW": case "d": case "e": case "E": a = a.substr(0, 1); case "gggg": case "GGGG": case "GGGGG": a = a.substr(0, 2), b && (c._w = c._w || {}, c._w[a] = C(b)); break; case "gg": case "GG": c._w = c._w || {}, c._w[a] = vb.parseTwoDigitYear(b) } } function U(a) { var c, d, e, f, g, h, i; c = a._w, null != c.GG || null != c.W || null != c.E ? (g = 1, h = 4, d = b(c.GG, a._a[Cb], jb(vb(), 1, 4).year), e = b(c.W, 1), f = b(c.E, 1)) : (g = a._locale._week.dow, h = a._locale._week.doy, d = b(c.gg, a._a[Cb], jb(vb(), g, h).year), e = b(c.w, 1), null != c.d ? (f = c.d, g > f && ++e) : f = null != c.e ? c.e + g : g), i = kb(d, e, f, h, g), a._a[Cb] = i.year, a._dayOfYear = i.dayOfYear } function V(a) { var c, d, e, f, g = []; if (!a._d) { for (e = X(a), a._w && null == a._a[Eb] && null == a._a[Db] && U(a), a._dayOfYear && (f = b(a._a[Cb], e[Cb]), a._dayOfYear > F(f) && (a._pf._overflowDayOfYear = !0), d = fb(f, 0, a._dayOfYear), a._a[Db] = d.getUTCMonth(), a._a[Eb] = d.getUTCDate()), c = 0; 3 > c && null == a._a[c]; ++c) a._a[c] = g[c] = e[c]; for (; 7 > c; c++) a._a[c] = g[c] = null == a._a[c] ? 2 === c ? 1 : 0 : a._a[c]; 24 === a._a[Fb] && 0 === a._a[Gb] && 0 === a._a[Hb] && 0 === a._a[Ib] && (a._nextDay = !0, a._a[Fb] = 0), a._d = (a._useUTC ? fb : eb).apply(null, g), null != a._tzm && a._d.setUTCMinutes(a._d.getUTCMinutes() - a._tzm), a._nextDay && (a._a[Fb] = 24) } } function W(a) { var b; a._d || (b = A(a._i), a._a = [b.year, b.month, b.day || b.date, b.hour, b.minute, b.second, b.millisecond], V(a)) } function X(a) { var b = new Date; return a._useUTC ? [b.getUTCFullYear(), b.getUTCMonth(), b.getUTCDate()] : [b.getFullYear(), b.getMonth(), b.getDate()] } function Y(b) { if (b._f === vb.ISO_8601) return void ab(b); b._a = [], b._pf.empty = !0; var c, d, e, f, g, h = "" + b._i, i = h.length, j = 0; for (e = Q(b._f, b._locale).match(Pb) || [], c = 0; c < e.length; c++) f = e[c], d = (h.match(R(f, b)) || [])[0], d && (g = h.substr(0, h.indexOf(d)), g.length > 0 && b._pf.unusedInput.push(g), h = h.slice(h.indexOf(d) + d.length), j += d.length), rc[f] ? (d ? b._pf.empty = !1 : b._pf.unusedTokens.push(f), T(f, d, b)) : b._strict && !d && b._pf.unusedTokens.push(f); b._pf.charsLeftOver = i - j, h.length > 0 && b._pf.unusedInput.push(h), b._pf.bigHour === !0 && b._a[Fb] <= 12 && (b._pf.bigHour = a), b._a[Fb] = k(b._locale, b._a[Fb], b._meridiem), V(b), H(b) } function Z(a) { return a.replace(/\\(\[)|\\(\])|\[([^\]\[]*)\]|\\(.)/g, function (a, b, c, d, e) { return b || c || d || e }) } function $(a) { return a.replace(/[-\/\\^$*+?.()|[\]{}]/g, "\\$&") } function _(a) { var b, c, e, f, g; if (0 === a._f.length) return a._pf.invalidFormat = !0, void (a._d = new Date(0 / 0)); for (f = 0; f < a._f.length; f++) g = 0, b = p({}, a), null != a._useUTC && (b._useUTC = a._useUTC), b._pf = d(), b._f = a._f[f], Y(b), I(b) && (g += b._pf.charsLeftOver, g += 10 * b._pf.unusedTokens.length, b._pf.score = g, (null == e || e > g) && (e = g, c = b)); o(a, c || b) } function ab(a) { var b, c, d = a._i, e = fc.exec(d); if (e) { for (a._pf.iso = !0, b = 0, c = hc.length; c > b; b++) if (hc[b][1].exec(d)) { a._f = hc[b][0] + (e[6] || " "); break } for (b = 0, c = ic.length; c > b; b++) if (ic[b][1].exec(d)) { a._f += ic[b][0]; break } d.match(Xb) && (a._f += "Z"), Y(a) } else a._isValid = !1 } function bb(a) { ab(a), a._isValid === !1 && (delete a._isValid, vb.createFromInputFallback(a)) } function cb(a, b) { var c, d = []; for (c = 0; c < a.length; ++c) d.push(b(a[c], c)); return d } function db(b) { var c, d = b._i; d === a ? b._d = new Date : x(d) ? b._d = new Date(+d) : null !== (c = Mb.exec(d)) ? b._d = new Date(+c[1]) : "string" == typeof d ? bb(b) : w(d) ? (b._a = cb(d.slice(0), function (a) { return parseInt(a, 10) }), V(b)) : "object" == typeof d ? W(b) : "number" == typeof d ? b._d = new Date(d) : vb.createFromInputFallback(b) } function eb(a, b, c, d, e, f, g) { var h = new Date(a, b, c, d, e, f, g); return 1970 > a && h.setFullYear(a), h } function fb(a) { var b = new Date(Date.UTC.apply(null, arguments)); return 1970 > a && b.setUTCFullYear(a), b } function gb(a, b) { if ("string" == typeof a) if (isNaN(a)) { if (a = b.weekdaysParse(a), "number" != typeof a) return null } else a = parseInt(a, 10); return a } function hb(a, b, c, d, e) { return e.relativeTime(b || 1, !!c, a, d) } function ib(a, b, c) { var d = vb.duration(a).abs(), e = Ab(d.as("s")), f = Ab(d.as("m")), g = Ab(d.as("h")), h = Ab(d.as("d")), i = Ab(d.as("M")), j = Ab(d.as("y")), k = e < oc.s && ["s", e] || 1 === f && ["m"] || f < oc.m && ["mm", f] || 1 === g && ["h"] || g < oc.h && ["hh", g] || 1 === h && ["d"] || h < oc.d && ["dd", h] || 1 === i && ["M"] || i < oc.M && ["MM", i] || 1 === j && ["y"] || ["yy", j]; return k[2] = b, k[3] = +a > 0, k[4] = c, hb.apply({}, k) } function jb(a, b, c) { var d, e = c - b, f = c - a.day(); return f > e && (f -= 7), e - 7 > f && (f += 7), d = vb(a).add(f, "d"), { week: Math.ceil(d.dayOfYear() / 7), year: d.year() } } function kb(a, b, c, d, e) { var f, g, h = fb(a, 0, 1).getUTCDay(); return h = 0 === h ? 7 : h, c = null != c ? c : e, f = e - h + (h > d ? 7 : 0) - (e > h ? 7 : 0), g = 7 * (b - 1) + (c - e) + f + 1, { year: g > 0 ? a : a - 1, dayOfYear: g > 0 ? g : F(a - 1) + g } } function lb(b) { var c, d = b._i, e = b._f; return b._locale = b._locale || vb.localeData(b._l), null === d || e === a && "" === d ? vb.invalid({ nullInput: !0 }) : ("string" == typeof d && (b._i = d = b._locale.preparse(d)), vb.isMoment(d) ? new m(d, !0) : (e ? w(e) ? _(b) : Y(b) : db(b), c = new m(b), c._nextDay && (c.add(1, "d"), c._nextDay = a), c)) } function mb(a, b) { var c, d; if (1 === b.length && w(b[0]) && (b = b[0]), !b.length) return vb(); for (c = b[0], d = 1; d < b.length; ++d) b[d][a](c) && (c = b[d]); return c } function nb(a, b) { var c; return "string" == typeof b && (b = a.localeData().monthsParse(b), "number" != typeof b) ? a : (c = Math.min(a.date(), D(a.year(), b)), a._d["set" + (a._isUTC ? "UTC" : "") + "Month"](b, c), a) } function ob(a, b) { return a._d["get" + (a._isUTC ? "UTC" : "") + b]() } function pb(a, b, c) { return "Month" === b ? nb(a, c) : a._d["set" + (a._isUTC ? "UTC" : "") + b](c) } function qb(a, b) { return function (c) { return null != c ? (pb(this, a, c), vb.updateOffset(this, b), this) : ob(this, a) } } function rb(a) { return 400 * a / 146097 } function sb(a) { return 146097 * a / 400 } function tb(a) { vb.duration.fn[a] = function () { return this._data[a] } } function ub(a) { "undefined" == typeof ender && (wb = zb.moment, zb.moment = a ? f("Accessing Moment through the global scope is deprecated, and will be removed in an upcoming release.", vb) : vb) } for (var vb, wb, xb, yb = "2.9.0", zb = "undefined" == typeof global || "undefined" != typeof window && window !== global.window ? this : global, Ab = Math.round, Bb = Object.prototype.hasOwnProperty, Cb = 0, Db = 1, Eb = 2, Fb = 3, Gb = 4, Hb = 5, Ib = 6, Jb = {}, Kb = [], Lb = "undefined" != typeof module && module && module.exports, Mb = /^\/?Date\((\-?\d+)/i, Nb = /(\-)?(?:(\d*)\.)?(\d+)\:(\d+)(?:\:(\d+)\.?(\d{3})?)?/, Ob = /^(-)?P(?:(?:([0-9,.]*)Y)?(?:([0-9,.]*)M)?(?:([0-9,.]*)D)?(?:T(?:([0-9,.]*)H)?(?:([0-9,.]*)M)?(?:([0-9,.]*)S)?)?|([0-9,.]*)W)$/, Pb = /(\[[^\[]*\])|(\\)?(Mo|MM?M?M?|Do|DDDo|DD?D?D?|ddd?d?|do?|w[o|w]?|W[o|W]?|Q|YYYYYY|YYYYY|YYYY|YY|gg(ggg?)?|GG(GGG?)?|e|E|a|A|hh?|HH?|mm?|ss?|S{1,4}|x|X|zz?|ZZ?|.)/g, Qb = /(\[[^\[]*\])|(\\)?(LTS|LT|LL?L?L?|l{1,4})/g, Rb = /\d\d?/, Sb = /\d{1,3}/, Tb = /\d{1,4}/, Ub = /[+\-]?\d{1,6}/, Vb = /\d+/, Wb = /[0-9]*['a-z\u00A0-\u05FF\u0700-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]+|[\u0600-\u06FF\/]+(\s*?[\u0600-\u06FF]+){1,2}/i, Xb = /Z|[\+\-]\d\d:?\d\d/gi, Yb = /T/i, Zb = /[\+\-]?\d+/, $b = /[\+\-]?\d+(\.\d{1,3})?/, _b = /\d/, ac = /\d\d/, bc = /\d{3}/, cc = /\d{4}/, dc = /[+-]?\d{6}/, ec = /[+-]?\d+/, fc = /^\s*(?:[+-]\d{6}|\d{4})-(?:(\d\d-\d\d)|(W\d\d$)|(W\d\d-\d)|(\d\d\d))((T| )(\d\d(:\d\d(:\d\d(\.\d+)?)?)?)?([\+\-]\d\d(?::?\d\d)?|\s*Z)?)?$/, gc = "YYYY-MM-DDTHH:mm:ssZ", hc = [["YYYYYY-MM-DD", /[+-]\d{6}-\d{2}-\d{2}/], ["YYYY-MM-DD", /\d{4}-\d{2}-\d{2}/], ["GGGG-[W]WW-E", /\d{4}-W\d{2}-\d/], ["GGGG-[W]WW", /\d{4}-W\d{2}/], ["YYYY-DDD", /\d{4}-\d{3}/]], ic = [["HH:mm:ss.SSSS", /(T| )\d\d:\d\d:\d\d\.\d+/], ["HH:mm:ss", /(T| )\d\d:\d\d:\d\d/], ["HH:mm", /(T| )\d\d:\d\d/], ["HH", /(T| )\d\d/]], jc = /([\+\-]|\d\d)/gi, kc = ("Date|Hours|Minutes|Seconds|Milliseconds".split("|"), { Milliseconds: 1, Seconds: 1e3, Minutes: 6e4, Hours: 36e5, Days: 864e5, Months: 2592e6, Years: 31536e6 }), lc = { ms: "millisecond", s: "second", m: "minute", h: "hour", d: "day", D: "date", w: "week", W: "isoWeek", M: "month", Q: "quarter", y: "year", DDD: "dayOfYear", e: "weekday", E: "isoWeekday", gg: "weekYear", GG: "isoWeekYear" }, mc = { dayofyear: "dayOfYear", isoweekday: "isoWeekday", isoweek: "isoWeek", weekyear: "weekYear", isoweekyear: "isoWeekYear" }, nc = {}, oc = { s: 45, m: 45, h: 22, d: 26, M: 11 }, pc = "DDD w W M D d".split(" "), qc = "M D H h m s w W".split(" "), rc = { M: function () { return this.month() + 1 }, MMM: function (a) { return this.localeData().monthsShort(this, a) }, MMMM: function (a) { return this.localeData().months(this, a) }, D: function () { return this.date() }, DDD: function () { return this.dayOfYear() }, d: function () { return this.day() }, dd: function (a) { return this.localeData().weekdaysMin(this, a) }, ddd: function (a) { return this.localeData().weekdaysShort(this, a) }, dddd: function (a) { return this.localeData().weekdays(this, a) }, w: function () { return this.week() }, W: function () { return this.isoWeek() }, YY: function () { return r(this.year() % 100, 2) }, YYYY: function () { return r(this.year(), 4) }, YYYYY: function () { return r(this.year(), 5) }, YYYYYY: function () { var a = this.year(), b = a >= 0 ? "+" : "-"; return b + r(Math.abs(a), 6) }, gg: function () { return r(this.weekYear() % 100, 2) }, gggg: function () { return r(this.weekYear(), 4) }, ggggg: function () { return r(this.weekYear(), 5) }, GG: function () { return r(this.isoWeekYear() % 100, 2) }, GGGG: function () { return r(this.isoWeekYear(), 4) }, GGGGG: function () { return r(this.isoWeekYear(), 5) }, e: function () { return this.weekday() }, E: function () { return this.isoWeekday() }, a: function () { return this.localeData().meridiem(this.hours(), this.minutes(), !0) }, A: function () { return this.localeData().meridiem(this.hours(), this.minutes(), !1) }, H: function () { return this.hours() }, h: function () { return this.hours() % 12 || 12 }, m: function () { return this.minutes() }, s: function () { return this.seconds() }, S: function () { return C(this.milliseconds() / 100) }, SS: function () { return r(C(this.milliseconds() / 10), 2) }, SSS: function () { return r(this.milliseconds(), 3) }, SSSS: function () { return r(this.milliseconds(), 3) }, Z: function () { var a = this.utcOffset(), b = "+"; return 0 > a && (a = -a, b = "-"), b + r(C(a / 60), 2) + ":" + r(C(a) % 60, 2) }, ZZ: function () { var a = this.utcOffset(), b = "+"; return 0 > a && (a = -a, b = "-"), b + r(C(a / 60), 2) + r(C(a) % 60, 2) }, z: function () { return this.zoneAbbr() }, zz: function () { return this.zoneName() }, x: function () { return this.valueOf() }, X: function () { return this.unix() }, Q: function () { return this.quarter() } }, sc = {}, tc = ["months", "monthsShort", "weekdays", "weekdaysShort", "weekdaysMin"], uc = !1; pc.length;) xb = pc.pop(), rc[xb + "o"] = i(rc[xb], xb); for (; qc.length;) xb = qc.pop(), rc[xb + xb] = h(rc[xb], 2); rc.DDDD = h(rc.DDD, 3), o(l.prototype, { set: function (a) { var b, c; for (c in a) b = a[c], "function" == typeof b ? this[c] = b : this["_" + c] = b; this._ordinalParseLenient = new RegExp(this._ordinalParse.source + "|" + /\d{1,2}/.source) }, _months: "January_February_March_April_May_June_July_August_September_October_November_December".split("_"), months: function (a) { return this._months[a.month()] }, _monthsShort: "Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec".split("_"), monthsShort: function (a) { return this._monthsShort[a.month()] }, monthsParse: function (a, b, c) { var d, e, f; for (this._monthsParse || (this._monthsParse = [], this._longMonthsParse = [], this._shortMonthsParse = []), d = 0; 12 > d; d++) { if (e = vb.utc([2e3, d]), c && !this._longMonthsParse[d] && (this._longMonthsParse[d] = new RegExp("^" + this.months(e, "").replace(".", "") + "$", "i"), this._shortMonthsParse[d] = new RegExp("^" + this.monthsShort(e, "").replace(".", "") + "$", "i")), c || this._monthsParse[d] || (f = "^" + this.months(e, "") + "|^" + this.monthsShort(e, ""), this._monthsParse[d] = new RegExp(f.replace(".", ""), "i")), c && "MMMM" === b && this._longMonthsParse[d].test(a)) return d; if (c && "MMM" === b && this._shortMonthsParse[d].test(a)) return d; if (!c && this._monthsParse[d].test(a)) return d } }, _weekdays: "Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday".split("_"), weekdays: function (a) { return this._weekdays[a.day()] }, _weekdaysShort: "Sun_Mon_Tue_Wed_Thu_Fri_Sat".split("_"), weekdaysShort: function (a) { return this._weekdaysShort[a.day()] }, _weekdaysMin: "Su_Mo_Tu_We_Th_Fr_Sa".split("_"), weekdaysMin: function (a) { return this._weekdaysMin[a.day()] }, weekdaysParse: function (a) { var b, c, d; for (this._weekdaysParse || (this._weekdaysParse = []), b = 0; 7 > b; b++) if (this._weekdaysParse[b] || (c = vb([2e3, 1]).day(b), d = "^" + this.weekdays(c, "") + "|^" + this.weekdaysShort(c, "") + "|^" + this.weekdaysMin(c, ""), this._weekdaysParse[b] = new RegExp(d.replace(".", ""), "i")), this._weekdaysParse[b].test(a)) return b }, _longDateFormat: { LTS: "h:mm:ss A", LT: "h:mm A", L: "MM/DD/YYYY", LL: "MMMM D, YYYY", LLL: "MMMM D, YYYY LT", LLLL: "dddd, MMMM D, YYYY LT" }, longDateFormat: function (a) { var b = this._longDateFormat[a]; return !b && this._longDateFormat[a.toUpperCase()] && (b = this._longDateFormat[a.toUpperCase()].replace(/MMMM|MM|DD|dddd/g, function (a) { return a.slice(1) }), this._longDateFormat[a] = b), b }, isPM: function (a) { return "p" === (a + "").toLowerCase().charAt(0) }, _meridiemParse: /[ap]\.?m?\.?/i, meridiem: function (a, b, c) { return a > 11 ? c ? "pm" : "PM" : c ? "am" : "AM" }, _calendar: { sameDay: "[Today at] LT", nextDay: "[Tomorrow at] LT", nextWeek: "dddd [at] LT", lastDay: "[Yesterday at] LT", lastWeek: "[Last] dddd [at] LT", sameElse: "L" }, calendar: function (a, b, c) { var d = this._calendar[a]; return "function" == typeof d ? d.apply(b, [c]) : d }, _relativeTime: { future: "in %s", past: "%s ago", s: "a few seconds", m: "a minute", mm: "%d minutes", h: "an hour", hh: "%d hours", d: "a day", dd: "%d days", M: "a month", MM: "%d months", y: "a year", yy: "%d years" }, relativeTime: function (a, b, c, d) { var e = this._relativeTime[c]; return "function" == typeof e ? e(a, b, c, d) : e.replace(/%d/i, a) }, pastFuture: function (a, b) { var c = this._relativeTime[a > 0 ? "future" : "past"]; return "function" == typeof c ? c(b) : c.replace(/%s/i, b) }, ordinal: function (a) { return this._ordinal.replace("%d", a) }, _ordinal: "%d", _ordinalParse: /\d{1,2}/, preparse: function (a) { return a }, postformat: function (a) { return a }, week: function (a) { return jb(a, this._week.dow, this._week.doy).week }, _week: { dow: 0, doy: 6 }, firstDayOfWeek: function () { return this._week.dow }, firstDayOfYear: function () { return this._week.doy }, _invalidDate: "Invalid date", invalidDate: function () { return this._invalidDate } }), vb = function (b, c, e, f) { var g; return "boolean" == typeof e && (f = e, e = a), g = {}, g._isAMomentObject = !0, g._i = b, g._f = c, g._l = e, g._strict = f, g._isUTC = !1, g._pf = d(), lb(g) }, vb.suppressDeprecationWarnings = !1, vb.createFromInputFallback = f("moment construction falls back to js Date. This is discouraged and will be removed in upcoming major release. Please refer to https://github.com/moment/moment/issues/1407 for more info.", function (a) { a._d = new Date(a._i + (a._useUTC ? " UTC" : "")) }), vb.min = function () { var a = [].slice.call(arguments, 0); return mb("isBefore", a) }, vb.max = function () { var a = [].slice.call(arguments, 0); return mb("isAfter", a) }, vb.utc = function (b, c, e, f) { var g; return "boolean" == typeof e && (f = e, e = a), g = {}, g._isAMomentObject = !0, g._useUTC = !0, g._isUTC = !0, g._l = e, g._i = b, g._f = c, g._strict = f, g._pf = d(), lb(g).utc() }, vb.unix = function (a) { return vb(1e3 * a) }, vb.duration = function (a, b) { var d, e, f, g, h = a, i = null; return vb.isDuration(a) ? h = { ms: a._milliseconds, d: a._days, M: a._months } : "number" == typeof a ? (h = {}, b ? h[b] = a : h.milliseconds = a) : (i = Nb.exec(a)) ? (d = "-" === i[1] ? -1 : 1, h = { y: 0, d: C(i[Eb]) * d, h: C(i[Fb]) * d, m: C(i[Gb]) * d, s: C(i[Hb]) * d, ms: C(i[Ib]) * d }) : (i = Ob.exec(a)) ? (d = "-" === i[1] ? -1 : 1, f = function (a) { var b = a && parseFloat(a.replace(",", ".")); return (isNaN(b) ? 0 : b) * d }, h = { y: f(i[2]), M: f(i[3]), d: f(i[4]), h: f(i[5]), m: f(i[6]), s: f(i[7]), w: f(i[8]) }) : null == h ? h = {} : "object" == typeof h && ("from" in h || "to" in h) && (g = t(vb(h.from), vb(h.to)), h = {}, h.ms = g.milliseconds, h.M = g.months), e = new n(h), vb.isDuration(a) && c(a, "_locale") && (e._locale = a._locale), e }, vb.version = yb, vb.defaultFormat = gc, vb.ISO_8601 = function () { }, vb.momentProperties = Kb, vb.updateOffset = function () { }, vb.relativeTimeThreshold = function (b, c) { return oc[b] === a ? !1 : c === a ? oc[b] : (oc[b] = c, !0) }, vb.lang = f("moment.lang is deprecated. Use moment.locale instead.", function (a, b) { return vb.locale(a, b) }), vb.locale = function (a, b) { var c; return a && (c = "undefined" != typeof b ? vb.defineLocale(a, b) : vb.localeData(a), c && (vb.duration._locale = vb._locale = c)), vb._locale._abbr }, vb.defineLocale = function (a, b) { return null !== b ? (b.abbr = a, Jb[a] || (Jb[a] = new l), Jb[a].set(b), vb.locale(a), Jb[a]) : (delete Jb[a], null) }, vb.langData = f("moment.langData is deprecated. Use moment.localeData instead.", function (a) { return vb.localeData(a) }), vb.localeData = function (a) { var b; if (a && a._locale && a._locale._abbr && (a = a._locale._abbr), !a) return vb._locale; if (!w(a)) { if (b = L(a)) return b; a = [a] } return K(a) }, vb.isMoment = function (a) { return a instanceof m || null != a && c(a, "_isAMomentObject") }, vb.isDuration = function (a) { return a instanceof n }; for (xb = tc.length - 1; xb >= 0; --xb) B(tc[xb]); vb.normalizeUnits = function (a) { return z(a) }, vb.invalid = function (a) { var b = vb.utc(0 / 0); return null != a ? o(b._pf, a) : b._pf.userInvalidated = !0, b }, vb.parseZone = function () { return vb.apply(null, arguments).parseZone() }, vb.parseTwoDigitYear = function (a) { return C(a) + (C(a) > 68 ? 1900 : 2e3) }, vb.isDate = x, o(vb.fn = m.prototype, { clone: function () { return vb(this) }, valueOf: function () { return +this._d - 6e4 * (this._offset || 0) }, unix: function () { return Math.floor(+this / 1e3) }, toString: function () { return this.clone().locale("en").format("ddd MMM DD YYYY HH:mm:ss [GMT]ZZ") }, toDate: function () { return this._offset ? new Date(+this) : this._d }, toISOString: function () { var a = vb(this).utc(); return 0 < a.year() && a.year() <= 9999 ? "function" == typeof Date.prototype.toISOString ? this.toDate().toISOString() : P(a, "YYYY-MM-DD[T]HH:mm:ss.SSS[Z]") : P(a, "YYYYYY-MM-DD[T]HH:mm:ss.SSS[Z]") }, toArray: function () { var a = this; return [a.year(), a.month(), a.date(), a.hours(), a.minutes(), a.seconds(), a.milliseconds()] }, isValid: function () { return I(this) }, isDSTShifted: function () { return this._a ? this.isValid() && y(this._a, (this._isUTC ? vb.utc(this._a) : vb(this._a)).toArray()) > 0 : !1 }, parsingFlags: function () { return o({}, this._pf) }, invalidAt: function () { return this._pf.overflow }, utc: function (a) { return this.utcOffset(0, a) }, local: function (a) { return this._isUTC && (this.utcOffset(0, a), this._isUTC = !1, a && this.subtract(this._dateUtcOffset(), "m")), this }, format: function (a) { var b = P(this, a || vb.defaultFormat); return this.localeData().postformat(b) }, add: u(1, "add"), subtract: u(-1, "subtract"), diff: function (a, b, c) { var d, e, f = M(a, this), g = 6e4 * (f.utcOffset() - this.utcOffset()); return b = z(b), "year" === b || "month" === b || "quarter" === b ? (e = j(this, f), "quarter" === b ? e /= 3 : "year" === b && (e /= 12)) : (d = this - f, e = "second" === b ? d / 1e3 : "minute" === b ? d / 6e4 : "hour" === b ? d / 36e5 : "day" === b ? (d - g) / 864e5 : "week" === b ? (d - g) / 6048e5 : d), c ? e : q(e) }, from: function (a, b) { return vb.duration({ to: this, from: a }).locale(this.locale()).humanize(!b) }, fromNow: function (a) { return this.from(vb(), a) }, calendar: function (a) { var b = a || vb(), c = M(b, this).startOf("day"), d = this.diff(c, "days", !0), e = -6 > d ? "sameElse" : -1 > d ? "lastWeek" : 0 > d ? "lastDay" : 1 > d ? "sameDay" : 2 > d ? "nextDay" : 7 > d ? "nextWeek" : "sameElse"; return this.format(this.localeData().calendar(e, this, vb(b))) }, isLeapYear: function () { return G(this.year()) }, isDST: function () { return this.utcOffset() > this.clone().month(0).utcOffset() || this.utcOffset() > this.clone().month(5).utcOffset() }, day: function (a) { var b = this._isUTC ? this._d.getUTCDay() : this._d.getDay(); return null != a ? (a = gb(a, this.localeData()), this.add(a - b, "d")) : b }, month: qb("Month", !0), startOf: function (a) { switch (a = z(a)) { case "year": this.month(0); case "quarter": case "month": this.date(1); case "week": case "isoWeek": case "day": this.hours(0); case "hour": this.minutes(0); case "minute": this.seconds(0); case "second": this.milliseconds(0) } return "week" === a ? this.weekday(0) : "isoWeek" === a && this.isoWeekday(1), "quarter" === a && this.month(3 * Math.floor(this.month() / 3)), this }, endOf: function (b) { return b = z(b), b === a || "millisecond" === b ? this : this.startOf(b).add(1, "isoWeek" === b ? "week" : b).subtract(1, "ms") }, isAfter: function (a, b) { var c; return b = z("undefined" != typeof b ? b : "millisecond"), "millisecond" === b ? (a = vb.isMoment(a) ? a : vb(a), +this > +a) : (c = vb.isMoment(a) ? +a : +vb(a), c < +this.clone().startOf(b)) }, isBefore: function (a, b) { var c; return b = z("undefined" != typeof b ? b : "millisecond"), "millisecond" === b ? (a = vb.isMoment(a) ? a : vb(a), +a > +this) : (c = vb.isMoment(a) ? +a : +vb(a), +this.clone().endOf(b) < c) }, isBetween: function (a, b, c) { return this.isAfter(a, c) && this.isBefore(b, c) }, isSame: function (a, b) { var c; return b = z(b || "millisecond"), "millisecond" === b ? (a = vb.isMoment(a) ? a : vb(a), +this === +a) : (c = +vb(a), +this.clone().startOf(b) <= c && c <= +this.clone().endOf(b)) }, min: f("moment().min is deprecated, use moment.min instead. https://github.com/moment/moment/issues/1548", function (a) { return a = vb.apply(null, arguments), this > a ? this : a }), max: f("moment().max is deprecated, use moment.max instead. https://github.com/moment/moment/issues/1548", function (a) { return a = vb.apply(null, arguments), a > this ? this : a }), zone: f("moment().zone is deprecated, use moment().utcOffset instead. https://github.com/moment/moment/issues/1779", function (a, b) { return null != a ? ("string" != typeof a && (a = -a), this.utcOffset(a, b), this) : -this.utcOffset() }), utcOffset: function (a, b) { var c, d = this._offset || 0; return null != a ? 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tb},reset:function(){clearTimeout(this._timer)},emit:function(a){this.state===rb&&(a&&a.eventType&Ga?this.manager.emit(this.options.event+"up",a):(this._input.timeStamp=ra(),this.manager.emit(this.options.event,this._input)))}}),i(ea,aa,{defaults:{event:"rotate",threshold:0,pointers:2},getTouchAction:function(){return[jb]},attrTest:function(a){return this._super.attrTest.call(this,a)&&(Math.abs(a.rotation)>this.options.threshold||this.state&ob)}}),i(fa,aa,{defaults:{event:"swipe",threshold:10,velocity:.3,direction:Na|Oa,pointers:1},getTouchAction:function(){return ba.prototype.getTouchAction.call(this)},attrTest:function(a){var b,c=this.options.direction;return c&(Na|Oa)?b=a.overallVelocity:c&Na?b=a.overallVelocityX:c&Oa&&(b=a.overallVelocityY),this._super.attrTest.call(this,a)&&c&a.offsetDirection&&a.distance>this.options.threshold&&a.maxPointers==this.options.pointers&&qa(b)>this.options.velocity&&a.eventType&Ga},emit:function(a){var b=$(a.offsetDirection);b&&this.manager.emit(this.options.event+b,a),this.manager.emit(this.options.event,a)}}),i(ga,Y,{defaults:{event:"tap",pointers:1,taps:1,interval:300,time:250,threshold:9,posThreshold:10},getTouchAction:function(){return[ib]},process:function(a){var b=this.options,c=a.pointers.length===b.pointers,d=a.distance 1 ? end : this.data.length) , type , this.encoding ); }; FB_proto.toString = function() { return "[object Blob]"; }; FB_proto.close = function() { this.size = 0; delete this.data; }; return FakeBlobBuilder; }(view)); view.Blob = function(blobParts, options) { var type = options ? (options.type || "") : ""; var builder = new BlobBuilder(); if (blobParts) { for (var i = 0, len = blobParts.length; i < len; i++) { if (Uint8Array && blobParts[i] instanceof Uint8Array) { builder.append(blobParts[i].buffer); } else { builder.append(blobParts[i]); } } } var blob = builder.getBlob(type); if (!blob.slice && blob.webkitSlice) { blob.slice = blob.webkitSlice; } return blob; }; var getPrototypeOf = Object.getPrototypeOf || function(object) { return object.__proto__; }; view.Blob.prototype = getPrototypeOf(new view.Blob()); }(typeof self !== "undefined" && self || typeof window !== "undefined" && window || this.content || this)); (function (root, factory) { 'use strict'; var isElectron = typeof module === 'object' && typeof process !== 'undefined' && process && process.versions && process.versions.electron; if (!isElectron && typeof module === 'object') { module.exports = factory; } else if (typeof define === 'function' && define.amd) { define(function () { return factory; }); } else { root.MediumEditor = factory; } }(this, function () { 'use strict'; function MediumEditor(elements, options) { 'use strict'; return this.init(elements, options); } MediumEditor.extensions = {}; /*jshint unused: true */ (function (window) { 'use strict'; function copyInto(overwrite, dest) { var prop, sources = Array.prototype.slice.call(arguments, 2); dest = dest || {}; for (var i = 0; i < sources.length; i++) { var source = sources[i]; if (source) { for (prop in source) { if (source.hasOwnProperty(prop) && typeof source[prop] !== 'undefined' && (overwrite || dest.hasOwnProperty(prop) === false)) { dest[prop] = source[prop]; } } } } return dest; } // https://developer.mozilla.org/en-US/docs/Web/API/Node/contains // Some browsers (including phantom) don't return true for Node.contains(child) // if child is a text node. Detect these cases here and use a fallback // for calls to Util.isDescendant() var nodeContainsWorksWithTextNodes = false; try { var testParent = document.createElement('div'), testText = document.createTextNode(' '); testParent.appendChild(testText); nodeContainsWorksWithTextNodes = testParent.contains(testText); } catch (exc) {} var Util = { // http://stackoverflow.com/questions/17907445/how-to-detect-ie11#comment30165888_17907562 // by rg89 isIE: ((navigator.appName === 'Microsoft Internet Explorer') || ((navigator.appName === 'Netscape') && (new RegExp('Trident/.*rv:([0-9]{1,}[.0-9]{0,})').exec(navigator.userAgent) !== null))), isEdge: (/Edge\/\d+/).exec(navigator.userAgent) !== null, // if firefox isFF: (navigator.userAgent.toLowerCase().indexOf('firefox') > -1), // http://stackoverflow.com/a/11752084/569101 isMac: (window.navigator.platform.toUpperCase().indexOf('MAC') >= 0), // https://github.com/jashkenas/underscore // Lonely letter MUST USE the uppercase code keyCode: { BACKSPACE: 8, TAB: 9, ENTER: 13, ESCAPE: 27, SPACE: 32, DELETE: 46, K: 75, // K keycode, and not k M: 77, V: 86 }, /** * Returns true if it's metaKey on Mac, or ctrlKey on non-Mac. * See #591 */ isMetaCtrlKey: function (event) { if ((Util.isMac && event.metaKey) || (!Util.isMac && event.ctrlKey)) { return true; } return false; }, /** * Returns true if the key associated to the event is inside keys array * * @see : https://github.com/jquery/jquery/blob/0705be475092aede1eddae01319ec931fb9c65fc/src/event.js#L473-L484 * @see : http://stackoverflow.com/q/4471582/569101 */ isKey: function (event, keys) { var keyCode = Util.getKeyCode(event); // it's not an array let's just compare strings! if (false === Array.isArray(keys)) { return keyCode === keys; } if (-1 === keys.indexOf(keyCode)) { return false; } return true; }, getKeyCode: function (event) { var keyCode = event.which; // getting the key code from event if (null === keyCode) { keyCode = event.charCode !== null ? event.charCode : event.keyCode; } return keyCode; }, blockContainerElementNames: [ // elements our editor generates 'p', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'blockquote', 'pre', 'ul', 'li', 'ol', // all other known block elements 'address', 'article', 'aside', 'audio', 'canvas', 'dd', 'dl', 'dt', 'fieldset', 'figcaption', 'figure', 'footer', 'form', 'header', 'hgroup', 'main', 'nav', 'noscript', 'output', 'section', 'video', 'table', 'thead', 'tbody', 'tfoot', 'tr', 'th', 'td' ], emptyElementNames: ['br', 'col', 'colgroup', 'hr', 'img', 'input', 'source', 'wbr'], extend: function extend(/* dest, source1, source2, ...*/) { var args = [true].concat(Array.prototype.slice.call(arguments)); return copyInto.apply(this, args); }, defaults: function defaults(/*dest, source1, source2, ...*/) { var args = [false].concat(Array.prototype.slice.call(arguments)); return copyInto.apply(this, args); }, /* * Create a link around the provided text nodes which must be adjacent to each other and all be * descendants of the same closest block container. If the preconditions are not met, unexpected * behavior will result. */ createLink: function (document, textNodes, href, target) { var anchor = document.createElement('a'); Util.moveTextRangeIntoElement(textNodes[0], textNodes[textNodes.length - 1], anchor); anchor.setAttribute('href', href); if (target) { anchor.setAttribute('target', target); } return anchor; }, /* * Given the provided match in the format {start: 1, end: 2} where start and end are indices into the * textContent of the provided element argument, modify the DOM inside element to ensure that the text * identified by the provided match can be returned as text nodes that contain exactly that text, without * any additional text at the beginning or end of the returned array of adjacent text nodes. * * The only DOM manipulation performed by this function is splitting the text nodes, non-text nodes are * not affected in any way. */ findOrCreateMatchingTextNodes: function (document, element, match) { var treeWalker = document.createTreeWalker(element, NodeFilter.SHOW_ALL, null, false), matchedNodes = [], currentTextIndex = 0, startReached = false, currentNode = null, newNode = null; while ((currentNode = treeWalker.nextNode()) !== null) { if (currentNode.nodeType > 3) { continue; } else if (currentNode.nodeType === 3) { if (!startReached && match.start < (currentTextIndex + currentNode.nodeValue.length)) { startReached = true; newNode = Util.splitStartNodeIfNeeded(currentNode, match.start, currentTextIndex); } if (startReached) { Util.splitEndNodeIfNeeded(currentNode, newNode, match.end, currentTextIndex); } if (startReached && currentTextIndex === match.end) { break; // Found the node(s) corresponding to the link. Break out and move on to the next. } else if (startReached && currentTextIndex > (match.end + 1)) { throw new Error('PerformLinking overshot the target!'); // should never happen... } if (startReached) { matchedNodes.push(newNode || currentNode); } currentTextIndex += currentNode.nodeValue.length; if (newNode !== null) { currentTextIndex += newNode.nodeValue.length; // Skip the newNode as we'll already have pushed it to the matches treeWalker.nextNode(); } newNode = null; } else if (currentNode.tagName.toLowerCase() === 'img') { if (!startReached && (match.start <= currentTextIndex)) { startReached = true; } if (startReached) { matchedNodes.push(currentNode); } } } return matchedNodes; }, /* * Given the provided text node and text coordinates, split the text node if needed to make it align * precisely with the coordinates. * * This function is intended to be called from Util.findOrCreateMatchingTextNodes. */ splitStartNodeIfNeeded: function (currentNode, matchStartIndex, currentTextIndex) { if (matchStartIndex !== currentTextIndex) { return currentNode.splitText(matchStartIndex - currentTextIndex); } return null; }, /* * Given the provided text node and text coordinates, split the text node if needed to make it align * precisely with the coordinates. The newNode argument should from the result of Util.splitStartNodeIfNeeded, * if that function has been called on the same currentNode. * * This function is intended to be called from Util.findOrCreateMatchingTextNodes. */ splitEndNodeIfNeeded: function (currentNode, newNode, matchEndIndex, currentTextIndex) { var textIndexOfEndOfFarthestNode, endSplitPoint; textIndexOfEndOfFarthestNode = currentTextIndex + currentNode.nodeValue.length + (newNode ? newNode.nodeValue.length : 0) - 1; endSplitPoint = matchEndIndex - currentTextIndex - (newNode ? currentNode.nodeValue.length : 0); if (textIndexOfEndOfFarthestNode >= matchEndIndex && currentTextIndex !== textIndexOfEndOfFarthestNode && endSplitPoint !== 0) { (newNode || currentNode).splitText(endSplitPoint); } }, /* * Take an element, and break up all of its text content into unique pieces such that: * 1) All text content of the elements are in separate blocks. No piece of text content should span * across multiple blocks. This means no element return by this function should have * any blocks as children. * 2) The union of the textcontent of all of the elements returned here covers all * of the text within the element. * * * EXAMPLE: * In the event that we have something like: * *
*

Some Text

*
    *
  1. List Item 1
    2. *
  2. List Item 2
    3. *
*
* * This function would return these elements as an array: * [

Some Text

,
  • List Item 1
    • ,
  • List Item 2
    • ] * * Since the
    and
      elements contain blocks within them they are not returned. * Since the

      and

    1. 's don't contain block elements and cover all the text content of the *
      container, they are the elements returned. */ splitByBlockElements: function (element) { if (element.nodeType !== 3 && element.nodeType !== 1) { return []; } var toRet = [], blockElementQuery = MediumEditor.util.blockContainerElementNames.join(','); if (element.nodeType === 3 || element.querySelectorAll(blockElementQuery).length === 0) { return [element]; } for (var i = 0; i < element.childNodes.length; i++) { var child = element.childNodes[i]; if (child.nodeType === 3) { toRet.push(child); } else if (child.nodeType === 1) { var blockElements = child.querySelectorAll(blockElementQuery); if (blockElements.length === 0) { toRet.push(child); } else { toRet = toRet.concat(MediumEditor.util.splitByBlockElements(child)); } } } return toRet; }, // Find the next node in the DOM tree that represents any text that is being // displayed directly next to the targetNode (passed as an argument) // Text that appears directly next to the current node can be: // - A sibling text node // - A descendant of a sibling element // - A sibling text node of an ancestor // - A descendant of a sibling element of an ancestor findAdjacentTextNodeWithContent: function findAdjacentTextNodeWithContent(rootNode, targetNode, ownerDocument) { var pastTarget = false, nextNode, nodeIterator = ownerDocument.createNodeIterator(rootNode, NodeFilter.SHOW_TEXT, null, false); // Use a native NodeIterator to iterate over all the text nodes that are descendants // of the rootNode. Once past the targetNode, choose the first non-empty text node nextNode = nodeIterator.nextNode(); while (nextNode) { if (nextNode === targetNode) { pastTarget = true; } else if (pastTarget) { if (nextNode.nodeType === 3 && nextNode.nodeValue && nextNode.nodeValue.trim().length > 0) { break; } } nextNode = nodeIterator.nextNode(); } return nextNode; }, // Find an element's previous sibling within a medium-editor element // If one doesn't exist, find the closest ancestor's previous sibling findPreviousSibling: function (node) { if (!node || Util.isMediumEditorElement(node)) { return false; } var previousSibling = node.previousSibling; while (!previousSibling && !Util.isMediumEditorElement(node.parentNode)) { node = node.parentNode; previousSibling = node.previousSibling; } return previousSibling; }, isDescendant: function isDescendant(parent, child, checkEquality) { if (!parent || !child) { return false; } if (parent === child) { return !!checkEquality; } // If parent is not an element, it can't have any descendants if (parent.nodeType !== 1) { return false; } if (nodeContainsWorksWithTextNodes || child.nodeType !== 3) { return parent.contains(child); } var node = child.parentNode; while (node !== null) { if (node === parent) { return true; } node = node.parentNode; } return false; }, // https://github.com/jashkenas/underscore isElement: function isElement(obj) { return !!(obj && obj.nodeType === 1); }, // https://github.com/jashkenas/underscore throttle: function (func, wait) { var THROTTLE_INTERVAL = 50, context, args, result, timeout = null, previous = 0, later = function () { previous = Date.now(); timeout = null; result = func.apply(context, args); if (!timeout) { context = args = null; } }; if (!wait && wait !== 0) { wait = THROTTLE_INTERVAL; } return function () { var now = Date.now(), remaining = wait - (now - previous); context = this; args = arguments; if (remaining <= 0 || remaining > wait) { if (timeout) { clearTimeout(timeout); timeout = null; } previous = now; result = func.apply(context, args); if (!timeout) { context = args = null; } } else if (!timeout) { timeout = setTimeout(later, remaining); } return result; }; }, traverseUp: function (current, testElementFunction) { if (!current) { return false; } do { if (current.nodeType === 1) { if (testElementFunction(current)) { return current; } // do not traverse upwards past the nearest containing editor if (Util.isMediumEditorElement(current)) { return false; } } current = current.parentNode; } while (current); return false; }, htmlEntities: function (str) { // converts special characters (like <) into their escaped/encoded values (like <). // This allows you to show to display the string without the browser reading it as HTML. return String(str).replace(/&/g, '&').replace(//g, '>').replace(/"/g, '"'); }, // http://stackoverflow.com/questions/6690752/insert-html-at-caret-in-a-contenteditable-div insertHTMLCommand: function (doc, html) { var selection, range, el, fragment, node, lastNode, toReplace, res = false, ecArgs = ['insertHTML', false, html]; /* Edge's implementation of insertHTML is just buggy right now: * - Doesn't allow leading white space at the beginning of an element * - Found a case when a tag was inserted when calling alignCenter inside a blockquote * * There are likely other bugs, these are just the ones we found so far. * For now, let's just use the same fallback we did for IE */ if (!MediumEditor.util.isEdge && doc.queryCommandSupported('insertHTML')) { try { return doc.execCommand.apply(doc, ecArgs); } catch (ignore) {} } selection = doc.getSelection(); if (selection.rangeCount) { range = selection.getRangeAt(0); toReplace = range.commonAncestorContainer; // https://github.com/yabwe/medium-editor/issues/748 // If the selection is an empty editor element, create a temporary text node inside of the editor // and select it so that we don't delete the editor element if (Util.isMediumEditorElement(toReplace) && !toReplace.firstChild) { range.selectNode(toReplace.appendChild(doc.createTextNode(''))); } else if ((toReplace.nodeType === 3 && range.startOffset === 0 && range.endOffset === toReplace.nodeValue.length) || (toReplace.nodeType !== 3 && toReplace.innerHTML === range.toString())) { // Ensure range covers maximum amount of nodes as possible // By moving up the DOM and selecting ancestors whose only child is the range while (!Util.isMediumEditorElement(toReplace) && toReplace.parentNode && toReplace.parentNode.childNodes.length === 1 && !Util.isMediumEditorElement(toReplace.parentNode)) { toReplace = toReplace.parentNode; } range.selectNode(toReplace); } range.deleteContents(); el = doc.createElement('div'); el.innerHTML = html; fragment = doc.createDocumentFragment(); while (el.firstChild) { node = el.firstChild; lastNode = fragment.appendChild(node); } range.insertNode(fragment); // Preserve the selection: if (lastNode) { range = range.cloneRange(); range.setStartAfter(lastNode); range.collapse(true); MediumEditor.selection.selectRange(doc, range); } res = true; } // https://github.com/yabwe/medium-editor/issues/992 // If we're monitoring calls to execCommand, notify listeners as if a real call had happened if (doc.execCommand.callListeners) { doc.execCommand.callListeners(ecArgs, res); } return res; }, execFormatBlock: function (doc, tagName) { // Get the top level block element that contains the selection var blockContainer = Util.getTopBlockContainer(MediumEditor.selection.getSelectionStart(doc)), childNodes; // Special handling for blockquote if (tagName === 'blockquote') { if (blockContainer) { childNodes = Array.prototype.slice.call(blockContainer.childNodes); // Check if the blockquote has a block element as a child (nested blocks) if (childNodes.some(function (childNode) { return Util.isBlockContainer(childNode); })) { // FF handles blockquote differently on formatBlock // allowing nesting, we need to use outdent // https://developer.mozilla.org/en-US/docs/Rich-Text_Editing_in_Mozilla return doc.execCommand('outdent', false, null); } } // When IE blockquote needs to be called as indent // http://stackoverflow.com/questions/1816223/rich-text-editor-with-blockquote-function/1821777#1821777 if (Util.isIE) { return doc.execCommand('indent', false, tagName); } } // If the blockContainer is already the element type being passed in // treat it as 'undo' formatting and just convert it to a

      if (blockContainer && tagName === blockContainer.nodeName.toLowerCase()) { tagName = 'p'; } // When IE we need to add <> to heading elements // http://stackoverflow.com/questions/10741831/execcommand-formatblock-headings-in-ie if (Util.isIE) { tagName = '<' + tagName + '>'; } // When FF, IE and Edge, we have to handle blockquote node seperately as 'formatblock' does not work. // https://developer.mozilla.org/en-US/docs/Web/API/Document/execCommand#Commands if (blockContainer && blockContainer.nodeName.toLowerCase() === 'blockquote') { // For IE, just use outdent if (Util.isIE && tagName === '

      ') { return doc.execCommand('outdent', false, tagName); } // For Firefox and Edge, make sure there's a nested block element before calling outdent if ((Util.isFF || Util.isEdge) && tagName === 'p') { childNodes = Array.prototype.slice.call(blockContainer.childNodes); // If there are some non-block elements we need to wrap everything in a

      before we outdent if (childNodes.some(function (childNode) { return !Util.isBlockContainer(childNode); })) { doc.execCommand('formatBlock', false, tagName); } return doc.execCommand('outdent', false, tagName); } } return doc.execCommand('formatBlock', false, tagName); }, /** * Set target to blank on the given el element * * TODO: not sure if this should be here * * When creating a link (using core -> createLink) the selection returned by Firefox will be the parent of the created link * instead of the created link itself (as it is for Chrome for example), so we retrieve all "a" children to grab the good one by * using `anchorUrl` to ensure that we are adding target="_blank" on the good one. * This isn't a bulletproof solution anyway .. */ setTargetBlank: function (el, anchorUrl) { var i, url = anchorUrl || false; if (el.nodeName.toLowerCase() === 'a') { el.target = '_blank'; } else { el = el.getElementsByTagName('a'); for (i = 0; i < el.length; i += 1) { if (false === url || url === el[i].attributes.href.value) { el[i].target = '_blank'; } } } }, /* * this function is called to explicitly remove the target='_blank' as FF holds on to _blank value even * after unchecking the checkbox on anchor form */ removeTargetBlank: function (el, anchorUrl) { var i; if (el.nodeName.toLowerCase() === 'a') { el.removeAttribute('target'); } else { el = el.getElementsByTagName('a'); for (i = 0; i < el.length; i += 1) { if (anchorUrl === el[i].attributes.href.value) { el[i].removeAttribute('target'); } } } }, /* * this function adds one or several classes on an a element. * if el parameter is not an a, it will look for a children of el. * if no a children are found, it will look for the a parent. */ addClassToAnchors: function (el, buttonClass) { var classes = buttonClass.split(' '), i, j; if (el.nodeName.toLowerCase() === 'a') { for (j = 0; j < classes.length; j += 1) { el.classList.add(classes[j]); } } else { var aChildren = el.getElementsByTagName('a'); if (aChildren.length === 0) { var parentAnchor = Util.getClosestTag(el, 'a'); el = parentAnchor ? [parentAnchor] : []; } else { el = aChildren; } for (i = 0; i < el.length; i += 1) { for (j = 0; j < classes.length; j += 1) { el[i].classList.add(classes[j]); } } } }, isListItem: function (node) { if (!node) { return false; } if (node.nodeName.toLowerCase() === 'li') { return true; } var parentNode = node.parentNode, tagName = parentNode.nodeName.toLowerCase(); while (tagName === 'li' || (!Util.isBlockContainer(parentNode) && tagName !== 'div')) { if (tagName === 'li') { return true; } parentNode = parentNode.parentNode; if (parentNode) { tagName = parentNode.nodeName.toLowerCase(); } else { return false; } } return false; }, cleanListDOM: function (ownerDocument, element) { if (element.nodeName.toLowerCase() !== 'li') { return; } var list = element.parentElement; if (list.parentElement.nodeName.toLowerCase() === 'p') { // yes we need to clean up Util.unwrap(list.parentElement, ownerDocument); // move cursor at the end of the text inside the list // for some unknown reason, the cursor is moved to end of the "visual" line MediumEditor.selection.moveCursor(ownerDocument, element.firstChild, element.firstChild.textContent.length); } }, /* splitDOMTree * * Given a root element some descendant element, split the root element * into its own element containing the descendant element and all elements * on the left or right side of the descendant ('right' is default) * * example: * *

      * / | \ * * / \ / \ / \ * 1 2 3 4 5 6 * * If I wanted to split this tree given the
      as the root and "4" as the leaf * the result would be (the prime ' marks indicates nodes that are created as clones): * * SPLITTING OFF 'RIGHT' TREE SPLITTING OFF 'LEFT' TREE * *
      '
      '
      * / \ / \ / \ | * ' * / \ | | / \ /\ /\ /\ * 1 2 3 4 5 6 1 2 3 4 5 6 * * The above example represents splitting off the 'right' or 'left' part of a tree, where * the
      ' would be returned as an element not appended to the DOM, and the
      * would remain in place where it was * */ splitOffDOMTree: function (rootNode, leafNode, splitLeft) { var splitOnNode = leafNode, createdNode = null, splitRight = !splitLeft; // loop until we hit the root while (splitOnNode !== rootNode) { var currParent = splitOnNode.parentNode, newParent = currParent.cloneNode(false), targetNode = (splitRight ? splitOnNode : currParent.firstChild), appendLast; // Create a new parent element which is a clone of the current parent if (createdNode) { if (splitRight) { // If we're splitting right, add previous created element before siblings newParent.appendChild(createdNode); } else { // If we're splitting left, add previous created element last appendLast = createdNode; } } createdNode = newParent; while (targetNode) { var sibling = targetNode.nextSibling; // Special handling for the 'splitNode' if (targetNode === splitOnNode) { if (!targetNode.hasChildNodes()) { targetNode.parentNode.removeChild(targetNode); } else { // For the node we're splitting on, if it has children, we need to clone it // and not just move it targetNode = targetNode.cloneNode(false); } // If the resulting split node has content, add it if (targetNode.textContent) { createdNode.appendChild(targetNode); } targetNode = (splitRight ? sibling : null); } else { // For general case, just remove the element and only // add it to the split tree if it contains something targetNode.parentNode.removeChild(targetNode); if (targetNode.hasChildNodes() || targetNode.textContent) { createdNode.appendChild(targetNode); } targetNode = sibling; } } // If we had an element we wanted to append at the end, do that now if (appendLast) { createdNode.appendChild(appendLast); } splitOnNode = currParent; } return createdNode; }, moveTextRangeIntoElement: function (startNode, endNode, newElement) { if (!startNode || !endNode) { return false; } var rootNode = Util.findCommonRoot(startNode, endNode); if (!rootNode) { return false; } if (endNode === startNode) { var temp = startNode.parentNode, sibling = startNode.nextSibling; temp.removeChild(startNode); newElement.appendChild(startNode); if (sibling) { temp.insertBefore(newElement, sibling); } else { temp.appendChild(newElement); } return newElement.hasChildNodes(); } // create rootChildren array which includes all the children // we care about var rootChildren = [], firstChild, lastChild, nextNode; for (var i = 0; i < rootNode.childNodes.length; i++) { nextNode = rootNode.childNodes[i]; if (!firstChild) { if (Util.isDescendant(nextNode, startNode, true)) { firstChild = nextNode; } } else { if (Util.isDescendant(nextNode, endNode, true)) { lastChild = nextNode; break; } else { rootChildren.push(nextNode); } } } var afterLast = lastChild.nextSibling, fragment = rootNode.ownerDocument.createDocumentFragment(); // build up fragment on startNode side of tree if (firstChild === startNode) { firstChild.parentNode.removeChild(firstChild); fragment.appendChild(firstChild); } else { fragment.appendChild(Util.splitOffDOMTree(firstChild, startNode)); } // add any elements between firstChild & lastChild rootChildren.forEach(function (element) { element.parentNode.removeChild(element); fragment.appendChild(element); }); // build up fragment on endNode side of the tree if (lastChild === endNode) { lastChild.parentNode.removeChild(lastChild); fragment.appendChild(lastChild); } else { fragment.appendChild(Util.splitOffDOMTree(lastChild, endNode, true)); } // Add fragment into passed in element newElement.appendChild(fragment); if (lastChild.parentNode === rootNode) { // If last child is in the root, insert newElement in front of it rootNode.insertBefore(newElement, lastChild); } else if (afterLast) { // If last child was removed, but it had a sibling, insert in front of it rootNode.insertBefore(newElement, afterLast); } else { // lastChild was removed and was the last actual element just append rootNode.appendChild(newElement); } return newElement.hasChildNodes(); }, /* based on http://stackoverflow.com/a/6183069 */ depthOfNode: function (inNode) { var theDepth = 0, node = inNode; while (node.parentNode !== null) { node = node.parentNode; theDepth++; } return theDepth; }, findCommonRoot: function (inNode1, inNode2) { var depth1 = Util.depthOfNode(inNode1), depth2 = Util.depthOfNode(inNode2), node1 = inNode1, node2 = inNode2; while (depth1 !== depth2) { if (depth1 > depth2) { node1 = node1.parentNode; depth1 -= 1; } else { node2 = node2.parentNode; depth2 -= 1; } } while (node1 !== node2) { node1 = node1.parentNode; node2 = node2.parentNode; } return node1; }, /* END - based on http://stackoverflow.com/a/6183069 */ isElementAtBeginningOfBlock: function (node) { var textVal, sibling; while (!Util.isBlockContainer(node) && !Util.isMediumEditorElement(node)) { sibling = node; while (sibling = sibling.previousSibling) { textVal = sibling.nodeType === 3 ? sibling.nodeValue : sibling.textContent; if (textVal.length > 0) { return false; } } node = node.parentNode; } return true; }, isMediumEditorElement: function (element) { return element && element.getAttribute && !!element.getAttribute('data-medium-editor-element'); }, getContainerEditorElement: function (element) { return Util.traverseUp(element, function (node) { return Util.isMediumEditorElement(node); }); }, isBlockContainer: function (element) { return element && element.nodeType !== 3 && Util.blockContainerElementNames.indexOf(element.nodeName.toLowerCase()) !== -1; }, /* Finds the closest ancestor which is a block container element * If element is within editor element but not within any other block element, * the editor element is returned */ getClosestBlockContainer: function (node) { return Util.traverseUp(node, function (node) { return Util.isBlockContainer(node) || Util.isMediumEditorElement(node); }); }, /* Finds highest level ancestor element which is a block container element * If element is within editor element but not within any other block element, * the editor element is returned */ getTopBlockContainer: function (element) { var topBlock = Util.isBlockContainer(element) ? element : false; Util.traverseUp(element, function (el) { if (Util.isBlockContainer(el)) { topBlock = el; } if (!topBlock && Util.isMediumEditorElement(el)) { topBlock = el; return true; } return false; }); return topBlock; }, getFirstSelectableLeafNode: function (element) { while (element && element.firstChild) { element = element.firstChild; } // We don't want to set the selection to an element that can't have children, this messes up Gecko. element = Util.traverseUp(element, function (el) { return Util.emptyElementNames.indexOf(el.nodeName.toLowerCase()) === -1; }); // Selecting at the beginning of a table doesn't work in PhantomJS. if (element.nodeName.toLowerCase() === 'table') { var firstCell = element.querySelector('th, td'); if (firstCell) { element = firstCell; } } return element; }, // TODO: remove getFirstTextNode AND _getFirstTextNode when jumping in 6.0.0 (no code references) getFirstTextNode: function (element) { Util.warn('getFirstTextNode is deprecated and will be removed in version 6.0.0'); return Util._getFirstTextNode(element); }, _getFirstTextNode: function (element) { if (element.nodeType === 3) { return element; } for (var i = 0; i < element.childNodes.length; i++) { var textNode = Util._getFirstTextNode(element.childNodes[i]); if (textNode !== null) { return textNode; } } return null; }, ensureUrlHasProtocol: function (url) { if (url.indexOf('://') === -1) { return 'http://' + url; } return url; }, warn: function () { if (window.console !== undefined && typeof window.console.warn === 'function') { window.console.warn.apply(window.console, arguments); } }, deprecated: function (oldName, newName, version) { // simple deprecation warning mechanism. var m = oldName + ' is deprecated, please use ' + newName + ' instead.'; if (version) { m += ' Will be removed in ' + version; } Util.warn(m); }, deprecatedMethod: function (oldName, newName, args, version) { // run the replacement and warn when someone calls a deprecated method Util.deprecated(oldName, newName, version); if (typeof this[newName] === 'function') { this[newName].apply(this, args); } }, cleanupAttrs: function (el, attrs) { attrs.forEach(function (attr) { el.removeAttribute(attr); }); }, cleanupTags: function (el, tags) { if (tags.indexOf(el.nodeName.toLowerCase()) !== -1) { el.parentNode.removeChild(el); } }, unwrapTags: function (el, tags) { if (tags.indexOf(el.nodeName.toLowerCase()) !== -1) { MediumEditor.util.unwrap(el, document); } }, // get the closest parent getClosestTag: function (el, tag) { return Util.traverseUp(el, function (element) { return element.nodeName.toLowerCase() === tag.toLowerCase(); }); }, unwrap: function (el, doc) { var fragment = doc.createDocumentFragment(), nodes = Array.prototype.slice.call(el.childNodes); // cast nodeList to array since appending child // to a different node will alter length of el.childNodes for (var i = 0; i < nodes.length; i++) { fragment.appendChild(nodes[i]); } if (fragment.childNodes.length) { el.parentNode.replaceChild(fragment, el); } else { el.parentNode.removeChild(el); } }, guid: function () { function _s4() { return Math .floor((1 + Math.random()) * 0x10000) .toString(16) .substring(1); } return _s4() + _s4() + '-' + _s4() + '-' + _s4() + '-' + _s4() + '-' + _s4() + _s4() + _s4(); } }; MediumEditor.util = Util; }(window)); (function () { 'use strict'; var Extension = function (options) { MediumEditor.util.extend(this, options); }; Extension.extend = function (protoProps) { // magic extender thinger. mostly borrowed from backbone/goog.inherits // place this function on some thing you want extend-able. // // example: // // function Thing(args){ // this.options = args; // } // // Thing.prototype = { foo: "bar" }; // Thing.extend = extenderify; // // var ThingTwo = Thing.extend({ foo: "baz" }); // // var thingOne = new Thing(); // foo === "bar" // var thingTwo = new ThingTwo(); // foo === "baz" // // which seems like some simply shallow copy nonsense // at first, but a lot more is going on there. // // passing a `constructor` to the extend props // will cause the instance to instantiate through that // instead of the parent's constructor. var parent = this, child; // The constructor function for the new subclass is either defined by you // (the "constructor" property in your `extend` definition), or defaulted // by us to simply call the parent's constructor. if (protoProps && protoProps.hasOwnProperty('constructor')) { child = protoProps.constructor; } else { child = function () { return parent.apply(this, arguments); }; } // das statics (.extend comes over, so your subclass can have subclasses too) MediumEditor.util.extend(child, parent); // Set the prototype chain to inherit from `parent`, without calling // `parent`'s constructor function. var Surrogate = function () { this.constructor = child; }; Surrogate.prototype = parent.prototype; child.prototype = new Surrogate(); if (protoProps) { MediumEditor.util.extend(child.prototype, protoProps); } // todo: $super? return child; }; Extension.prototype = { /* init: [function] * * Called by MediumEditor during initialization. * The .base property will already have been set to * current instance of MediumEditor when this is called. * All helper methods will exist as well */ init: function () {}, /* base: [MediumEditor instance] * * If not overriden, this will be set to the current instance * of MediumEditor, before the init method is called */ base: undefined, /* name: [string] * * 'name' of the extension, used for retrieving the extension. * If not set, MediumEditor will set this to be the key * used when passing the extension into MediumEditor via the * 'extensions' option */ name: undefined, /* checkState: [function (node)] * * If implemented, this function will be called one or more times * the state of the editor & toolbar are updated. * When the state is updated, the editor does the following: * * 1) Find the parent node containing the current selection * 2) Call checkState on the extension, passing the node as an argument * 3) Get the parent node of the previous node * 4) Repeat steps #2 and #3 until we move outside the parent contenteditable */ checkState: undefined, /* destroy: [function ()] * * This method should remove any created html, custom event handlers * or any other cleanup tasks that should be performed. * If implemented, this function will be called when MediumEditor's * destroy method has been called. */ destroy: undefined, /* As alternatives to checkState, these functions provide a more structured * path to updating the state of an extension (usually a button) whenever * the state of the editor & toolbar are updated. */ /* queryCommandState: [function ()] * * If implemented, this function will be called once on each extension * when the state of the editor/toolbar is being updated. * * If this function returns a non-null value, the extension will * be ignored as the code climbs the dom tree. * * If this function returns true, and the setActive() function is defined * setActive() will be called */ queryCommandState: undefined, /* isActive: [function ()] * * If implemented, this function will be called when MediumEditor * has determined that this extension is 'active' for the current selection. * This may be called when the editor & toolbar are being updated, * but only if queryCommandState() or isAlreadyApplied() functions * are implemented, and when called, return true. */ isActive: undefined, /* isAlreadyApplied: [function (node)] * * If implemented, this function is similar to checkState() in * that it will be called repeatedly as MediumEditor moves up * the DOM to update the editor & toolbar after a state change. * * NOTE: This function will NOT be called if checkState() has * been implemented. This function will NOT be called if * queryCommandState() is implemented and returns a non-null * value when called */ isAlreadyApplied: undefined, /* setActive: [function ()] * * If implemented, this function is called when MediumEditor knows * that this extension is currently enabled. Currently, this * function is called when updating the editor & toolbar, and * only if queryCommandState() or isAlreadyApplied(node) return * true when called */ setActive: undefined, /* setInactive: [function ()] * * If implemented, this function is called when MediumEditor knows * that this extension is currently disabled. Curently, this * is called at the beginning of each state change for * the editor & toolbar. After calling this, MediumEditor * will attempt to update the extension, either via checkState() * or the combination of queryCommandState(), isAlreadyApplied(node), * isActive(), and setActive() */ setInactive: undefined, /* getInteractionElements: [function ()] * * If the extension renders any elements that the user can interact with, * this method should be implemented and return the root element or an array * containing all of the root elements. MediumEditor will call this function * during interaction to see if the user clicked on something outside of the editor. * The elements are used to check if the target element of a click or * other user event is a descendant of any extension elements. * This way, the editor can also count user interaction within editor elements as * interactions with the editor, and thus not trigger 'blur' */ getInteractionElements: undefined, /************************ Helpers ************************ * The following are helpers that are either set by MediumEditor * during initialization, or are helper methods which either * route calls to the MediumEditor instance or provide common * functionality for all extensions *********************************************************/ /* window: [Window] * * If not overriden, this will be set to the window object * to be used by MediumEditor and its extensions. This is * passed via the 'contentWindow' option to MediumEditor * and is the global 'window' object by default */ 'window': undefined, /* document: [Document] * * If not overriden, this will be set to the document object * to be used by MediumEditor and its extensions. This is * passed via the 'ownerDocument' optin to MediumEditor * and is the global 'document' object by default */ 'document': undefined, /* getEditorElements: [function ()] * * Helper function which returns an array containing * all the contenteditable elements for this instance * of MediumEditor */ getEditorElements: function () { return this.base.elements; }, /* getEditorId: [function ()] * * Helper function which returns a unique identifier * for this instance of MediumEditor */ getEditorId: function () { return this.base.id; }, /* getEditorOptions: [function (option)] * * Helper function which returns the value of an option * used to initialize this instance of MediumEditor */ getEditorOption: function (option) { return this.base.options[option]; } }; /* List of method names to add to the prototype of Extension * Each of these methods will be defined as helpers that * just call directly into the MediumEditor instance. * * example for 'on' method: * Extension.prototype.on = function () { * return this.base.on.apply(this.base, arguments); * } */ [ // general helpers 'execAction', // event handling 'on', 'off', 'subscribe', 'trigger' ].forEach(function (helper) { Extension.prototype[helper] = function () { return this.base[helper].apply(this.base, arguments); }; }); MediumEditor.Extension = Extension; })(); (function () { 'use strict'; function filterOnlyParentElements(node) { if (MediumEditor.util.isBlockContainer(node)) { return NodeFilter.FILTER_ACCEPT; } else { return NodeFilter.FILTER_SKIP; } } var Selection = { findMatchingSelectionParent: function (testElementFunction, contentWindow) { var selection = contentWindow.getSelection(), range, current; if (selection.rangeCount === 0) { return false; } range = selection.getRangeAt(0); current = range.commonAncestorContainer; return MediumEditor.util.traverseUp(current, testElementFunction); }, getSelectionElement: function (contentWindow) { return this.findMatchingSelectionParent(function (el) { return MediumEditor.util.isMediumEditorElement(el); }, contentWindow); }, // http://stackoverflow.com/questions/17678843/cant-restore-selection-after-html-modify-even-if-its-the-same-html // Tim Down exportSelection: function (root, doc) { if (!root) { return null; } var selectionState = null, selection = doc.getSelection(); if (selection.rangeCount > 0) { var range = selection.getRangeAt(0), preSelectionRange = range.cloneRange(), start; preSelectionRange.selectNodeContents(root); preSelectionRange.setEnd(range.startContainer, range.startOffset); start = preSelectionRange.toString().length; selectionState = { start: start, end: start + range.toString().length }; // Check to see if the selection starts with any images // if so we need to make sure the the beginning of the selection is // set correctly when importing selection if (this.doesRangeStartWithImages(range, doc)) { selectionState.startsWithImage = true; } // Check to see if the selection has any trailing images // if so, this this means we need to look for them when we import selection var trailingImageCount = this.getTrailingImageCount(root, selectionState, range.endContainer, range.endOffset); if (trailingImageCount) { selectionState.trailingImageCount = trailingImageCount; } // If start = 0 there may still be an empty paragraph before it, but we don't care. if (start !== 0) { var emptyBlocksIndex = this.getIndexRelativeToAdjacentEmptyBlocks(doc, root, range.startContainer, range.startOffset); if (emptyBlocksIndex !== -1) { selectionState.emptyBlocksIndex = emptyBlocksIndex; } } } return selectionState; }, // http://stackoverflow.com/questions/17678843/cant-restore-selection-after-html-modify-even-if-its-the-same-html // Tim Down // // {object} selectionState - the selection to import // {DOMElement} root - the root element the selection is being restored inside of // {Document} doc - the document to use for managing selection // {boolean} [favorLaterSelectionAnchor] - defaults to false. If true, import the cursor immediately // subsequent to an anchor tag if it would otherwise be placed right at the trailing edge inside the // anchor. This cursor positioning, even though visually equivalent to the user, can affect behavior // in MS IE. importSelection: function (selectionState, root, doc, favorLaterSelectionAnchor) { if (!selectionState || !root) { return; } var range = doc.createRange(); range.setStart(root, 0); range.collapse(true); var node = root, nodeStack = [], charIndex = 0, foundStart = false, foundEnd = false, trailingImageCount = 0, stop = false, nextCharIndex, allowRangeToStartAtEndOfNode = false, lastTextNode = null; // When importing selection, the start of the selection may lie at the end of an element // or at the beginning of an element. Since visually there is no difference between these 2 // we will try to move the selection to the beginning of an element since this is generally // what users will expect and it's a more predictable behavior. // // However, there are some specific cases when we don't want to do this: // 1) We're attempting to move the cursor outside of the end of an anchor [favorLaterSelectionAnchor = true] // 2) The selection starts with an image, which is special since an image doesn't have any 'content' // as far as selection and ranges are concerned // 3) The selection starts after a specified number of empty block elements (selectionState.emptyBlocksIndex) // // For these cases, we want the selection to start at a very specific location, so we should NOT // automatically move the cursor to the beginning of the first actual chunk of text if (favorLaterSelectionAnchor || selectionState.startsWithImage || typeof selectionState.emptyBlocksIndex !== 'undefined') { allowRangeToStartAtEndOfNode = true; } while (!stop && node) { // Only iterate over elements and text nodes if (node.nodeType > 3) { node = nodeStack.pop(); continue; } // If we hit a text node, we need to add the amount of characters to the overall count if (node.nodeType === 3 && !foundEnd) { nextCharIndex = charIndex + node.length; // Check if we're at or beyond the start of the selection we're importing if (!foundStart && selectionState.start >= charIndex && selectionState.start <= nextCharIndex) { // NOTE: We only want to allow a selection to start at the END of an element if // allowRangeToStartAtEndOfNode is true if (allowRangeToStartAtEndOfNode || selectionState.start < nextCharIndex) { range.setStart(node, selectionState.start - charIndex); foundStart = true; } // We're at the end of a text node where the selection could start but we shouldn't // make the selection start here because allowRangeToStartAtEndOfNode is false. // However, we should keep a reference to this node in case there aren't any more // text nodes after this, so that we have somewhere to import the selection to else { lastTextNode = node; } } // We've found the start of the selection, check if we're at or beyond the end of the selection we're importing if (foundStart && selectionState.end >= charIndex && selectionState.end <= nextCharIndex) { if (!selectionState.trailingImageCount) { range.setEnd(node, selectionState.end - charIndex); stop = true; } else { foundEnd = true; } } charIndex = nextCharIndex; } else { if (selectionState.trailingImageCount && foundEnd) { if (node.nodeName.toLowerCase() === 'img') { trailingImageCount++; } if (trailingImageCount === selectionState.trailingImageCount) { // Find which index the image is in its parent's children var endIndex = 0; while (node.parentNode.childNodes[endIndex] !== node) { endIndex++; } range.setEnd(node.parentNode, endIndex + 1); stop = true; } } if (!stop && node.nodeType === 1) { // this is an element // add all its children to the stack var i = node.childNodes.length - 1; while (i >= 0) { nodeStack.push(node.childNodes[i]); i -= 1; } } } if (!stop) { node = nodeStack.pop(); } } // If we've gone through the entire text but didn't find the beginning of a text node // to make the selection start at, we should fall back to starting the selection // at the END of the last text node we found if (!foundStart && lastTextNode) { range.setStart(lastTextNode, lastTextNode.length); range.setEnd(lastTextNode, lastTextNode.length); } if (typeof selectionState.emptyBlocksIndex !== 'undefined') { range = this.importSelectionMoveCursorPastBlocks(doc, root, selectionState.emptyBlocksIndex, range); } // If the selection is right at the ending edge of a link, put it outside the anchor tag instead of inside. if (favorLaterSelectionAnchor) { range = this.importSelectionMoveCursorPastAnchor(selectionState, range); } this.selectRange(doc, range); }, // Utility method called from importSelection only importSelectionMoveCursorPastAnchor: function (selectionState, range) { var nodeInsideAnchorTagFunction = function (node) { return node.nodeName.toLowerCase() === 'a'; }; if (selectionState.start === selectionState.end && range.startContainer.nodeType === 3 && range.startOffset === range.startContainer.nodeValue.length && MediumEditor.util.traverseUp(range.startContainer, nodeInsideAnchorTagFunction)) { var prevNode = range.startContainer, currentNode = range.startContainer.parentNode; while (currentNode !== null && currentNode.nodeName.toLowerCase() !== 'a') { if (currentNode.childNodes[currentNode.childNodes.length - 1] !== prevNode) { currentNode = null; } else { prevNode = currentNode; currentNode = currentNode.parentNode; } } if (currentNode !== null && currentNode.nodeName.toLowerCase() === 'a') { var currentNodeIndex = null; for (var i = 0; currentNodeIndex === null && i < currentNode.parentNode.childNodes.length; i++) { if (currentNode.parentNode.childNodes[i] === currentNode) { currentNodeIndex = i; } } range.setStart(currentNode.parentNode, currentNodeIndex + 1); range.collapse(true); } } return range; }, // Uses the emptyBlocksIndex calculated by getIndexRelativeToAdjacentEmptyBlocks // to move the cursor back to the start of the correct paragraph importSelectionMoveCursorPastBlocks: function (doc, root, index, range) { var treeWalker = doc.createTreeWalker(root, NodeFilter.SHOW_ELEMENT, filterOnlyParentElements, false), startContainer = range.startContainer, startBlock, targetNode, currIndex = 0; index = index || 1; // If index is 0, we still want to move to the next block // Chrome counts newlines and spaces that separate block elements as actual elements. // If the selection is inside one of these text nodes, and it has a previous sibling // which is a block element, we want the treewalker to start at the previous sibling // and NOT at the parent of the textnode if (startContainer.nodeType === 3 && MediumEditor.util.isBlockContainer(startContainer.previousSibling)) { startBlock = startContainer.previousSibling; } else { startBlock = MediumEditor.util.getClosestBlockContainer(startContainer); } // Skip over empty blocks until we hit the block we want the selection to be in while (treeWalker.nextNode()) { if (!targetNode) { // Loop through all blocks until we hit the starting block element if (startBlock === treeWalker.currentNode) { targetNode = treeWalker.currentNode; } } else { targetNode = treeWalker.currentNode; currIndex++; // We hit the target index, bail if (currIndex === index) { break; } // If we find a non-empty block, ignore the emptyBlocksIndex and just put selection here if (targetNode.textContent.length > 0) { break; } } } if (!targetNode) { targetNode = startBlock; } // We're selecting a high-level block node, so make sure the cursor gets moved into the deepest // element at the beginning of the block range.setStart(MediumEditor.util.getFirstSelectableLeafNode(targetNode), 0); return range; }, // Returns -1 unless the cursor is at the beginning of a paragraph/block // If the paragraph/block is preceeded by empty paragraphs/block (with no text) // it will return the number of empty paragraphs before the cursor. // Otherwise, it will return 0, which indicates the cursor is at the beginning // of a paragraph/block, and not at the end of the paragraph/block before it getIndexRelativeToAdjacentEmptyBlocks: function (doc, root, cursorContainer, cursorOffset) { // If there is text in front of the cursor, that means there isn't only empty blocks before it if (cursorContainer.textContent.length > 0 && cursorOffset > 0) { return -1; } // Check if the block that contains the cursor has any other text in front of the cursor var node = cursorContainer; if (node.nodeType !== 3) { node = cursorContainer.childNodes[cursorOffset]; } if (node) { // The element isn't at the beginning of a block, so it has content before it if (!MediumEditor.util.isElementAtBeginningOfBlock(node)) { return -1; } var previousSibling = MediumEditor.util.findPreviousSibling(node); // If there is no previous sibling, this is the first text element in the editor if (!previousSibling) { return -1; } // If the previous sibling has text, then there are no empty blocks before this else if (previousSibling.nodeValue) { return -1; } } // Walk over block elements, counting number of empty blocks between last piece of text // and the block the cursor is in var closestBlock = MediumEditor.util.getClosestBlockContainer(cursorContainer), treeWalker = doc.createTreeWalker(root, NodeFilter.SHOW_ELEMENT, filterOnlyParentElements, false), emptyBlocksCount = 0; while (treeWalker.nextNode()) { var blockIsEmpty = treeWalker.currentNode.textContent === ''; if (blockIsEmpty || emptyBlocksCount > 0) { emptyBlocksCount += 1; } if (treeWalker.currentNode === closestBlock) { return emptyBlocksCount; } if (!blockIsEmpty) { emptyBlocksCount = 0; } } return emptyBlocksCount; }, // Returns true if the selection range begins with an image tag // Returns false if the range starts with any non empty text nodes doesRangeStartWithImages: function (range, doc) { if (range.startOffset !== 0 || range.startContainer.nodeType !== 1) { return false; } if (range.startContainer.nodeName.toLowerCase() === 'img') { return true; } var img = range.startContainer.querySelector('img'); if (!img) { return false; } var treeWalker = doc.createTreeWalker(range.startContainer, NodeFilter.SHOW_ALL, null, false); while (treeWalker.nextNode()) { var next = treeWalker.currentNode; // If we hit the image, then there isn't any text before the image so // the image is at the beginning of the range if (next === img) { break; } // If we haven't hit the iamge, but found text that contains content // then the range doesn't start with an image if (next.nodeValue) { return false; } } return true; }, getTrailingImageCount: function (root, selectionState, endContainer, endOffset) { // If the endOffset of a range is 0, the endContainer doesn't contain images // If the endContainer is a text node, there are no trailing images if (endOffset === 0 || endContainer.nodeType !== 1) { return 0; } // If the endContainer isn't an image, and doesn't have an image descendants // there are no trailing images if (endContainer.nodeName.toLowerCase() !== 'img' && !endContainer.querySelector('img')) { return 0; } var lastNode = endContainer.childNodes[endOffset - 1]; while (lastNode.hasChildNodes()) { lastNode = lastNode.lastChild; } var node = root, nodeStack = [], charIndex = 0, foundStart = false, foundEnd = false, stop = false, nextCharIndex, trailingImages = 0; while (!stop && node) { // Only iterate over elements and text nodes if (node.nodeType > 3) { node = nodeStack.pop(); continue; } if (node.nodeType === 3 && !foundEnd) { trailingImages = 0; nextCharIndex = charIndex + node.length; if (!foundStart && selectionState.start >= charIndex && selectionState.start <= nextCharIndex) { foundStart = true; } if (foundStart && selectionState.end >= charIndex && selectionState.end <= nextCharIndex) { foundEnd = true; } charIndex = nextCharIndex; } else { if (node.nodeName.toLowerCase() === 'img') { trailingImages++; } if (node === lastNode) { stop = true; } else if (node.nodeType === 1) { // this is an element // add all its children to the stack var i = node.childNodes.length - 1; while (i >= 0) { nodeStack.push(node.childNodes[i]); i -= 1; } } } if (!stop) { node = nodeStack.pop(); } } return trailingImages; }, // determine if the current selection contains any 'content' // content being any non-white space text or an image selectionContainsContent: function (doc) { var sel = doc.getSelection(); // collapsed selection or selection withour range doesn't contain content if (!sel || sel.isCollapsed || !sel.rangeCount) { return false; } // if toString() contains any text, the selection contains some content if (sel.toString().trim() !== '') { return true; } // if selection contains only image(s), it will return empty for toString() // so check for an image manually var selectionNode = this.getSelectedParentElement(sel.getRangeAt(0)); if (selectionNode) { if (selectionNode.nodeName.toLowerCase() === 'img' || (selectionNode.nodeType === 1 && selectionNode.querySelector('img'))) { return true; } } return false; }, selectionInContentEditableFalse: function (contentWindow) { // determine if the current selection is exclusively inside // a contenteditable="false", though treat the case of an // explicit contenteditable="true" inside a "false" as false. var sawtrue, sawfalse = this.findMatchingSelectionParent(function (el) { var ce = el && el.getAttribute('contenteditable'); if (ce === 'true') { sawtrue = true; } return el.nodeName !== '#text' && ce === 'false'; }, contentWindow); return !sawtrue && sawfalse; }, // http://stackoverflow.com/questions/4176923/html-of-selected-text // by Tim Down getSelectionHtml: function getSelectionHtml(doc) { var i, html = '', sel = doc.getSelection(), len, container; if (sel.rangeCount) { container = doc.createElement('div'); for (i = 0, len = sel.rangeCount; i < len; i += 1) { container.appendChild(sel.getRangeAt(i).cloneContents()); } html = container.innerHTML; } return html; }, /** * Find the caret position within an element irrespective of any inline tags it may contain. * * @param {DOMElement} An element containing the cursor to find offsets relative to. * @param {Range} A Range representing cursor position. Will window.getSelection if none is passed. * @return {Object} 'left' and 'right' attributes contain offsets from begining and end of Element */ getCaretOffsets: function getCaretOffsets(element, range) { var preCaretRange, postCaretRange; if (!range) { range = window.getSelection().getRangeAt(0); } preCaretRange = range.cloneRange(); postCaretRange = range.cloneRange(); preCaretRange.selectNodeContents(element); preCaretRange.setEnd(range.endContainer, range.endOffset); postCaretRange.selectNodeContents(element); postCaretRange.setStart(range.endContainer, range.endOffset); return { left: preCaretRange.toString().length, right: postCaretRange.toString().length }; }, // http://stackoverflow.com/questions/15867542/range-object-get-selection-parent-node-chrome-vs-firefox rangeSelectsSingleNode: function (range) { var startNode = range.startContainer; return startNode === range.endContainer && startNode.hasChildNodes() && range.endOffset === range.startOffset + 1; }, getSelectedParentElement: function (range) { if (!range) { return null; } // Selection encompasses a single element if (this.rangeSelectsSingleNode(range) && range.startContainer.childNodes[range.startOffset].nodeType !== 3) { return range.startContainer.childNodes[range.startOffset]; } // Selection range starts inside a text node, so get its parent if (range.startContainer.nodeType === 3) { return range.startContainer.parentNode; } // Selection starts inside an element return range.startContainer; }, getSelectedElements: function (doc) { var selection = doc.getSelection(), range, toRet, currNode; if (!selection.rangeCount || selection.isCollapsed || !selection.getRangeAt(0).commonAncestorContainer) { return []; } range = selection.getRangeAt(0); if (range.commonAncestorContainer.nodeType === 3) { toRet = []; currNode = range.commonAncestorContainer; while (currNode.parentNode && currNode.parentNode.childNodes.length === 1) { toRet.push(currNode.parentNode); currNode = currNode.parentNode; } return toRet; } return [].filter.call(range.commonAncestorContainer.getElementsByTagName('*'), function (el) { return (typeof selection.containsNode === 'function') ? selection.containsNode(el, true) : true; }); }, selectNode: function (node, doc) { var range = doc.createRange(); range.selectNodeContents(node); this.selectRange(doc, range); }, select: function (doc, startNode, startOffset, endNode, endOffset) { var range = doc.createRange(); range.setStart(startNode, startOffset); if (endNode) { range.setEnd(endNode, endOffset); } else { range.collapse(true); } this.selectRange(doc, range); return range; }, /** * Clear the current highlighted selection and set the caret to the start or the end of that prior selection, defaults to end. * * @param {DomDocument} doc Current document * @param {boolean} moveCursorToStart A boolean representing whether or not to set the caret to the beginning of the prior selection. */ clearSelection: function (doc, moveCursorToStart) { if (moveCursorToStart) { doc.getSelection().collapseToStart(); } else { doc.getSelection().collapseToEnd(); } }, /** * Move cursor to the given node with the given offset. * * @param {DomDocument} doc Current document * @param {DomElement} node Element where to jump * @param {integer} offset Where in the element should we jump, 0 by default */ moveCursor: function (doc, node, offset) { this.select(doc, node, offset); }, getSelectionRange: function (ownerDocument) { var selection = ownerDocument.getSelection(); if (selection.rangeCount === 0) { return null; } return selection.getRangeAt(0); }, selectRange: function (ownerDocument, range) { var selection = ownerDocument.getSelection(); selection.removeAllRanges(); selection.addRange(range); }, // http://stackoverflow.com/questions/1197401/how-can-i-get-the-element-the-caret-is-in-with-javascript-when-using-contentedi // by You getSelectionStart: function (ownerDocument) { var node = ownerDocument.getSelection().anchorNode, startNode = (node && node.nodeType === 3 ? node.parentNode : node); return startNode; } }; MediumEditor.selection = Selection; }()); (function () { 'use strict'; function isElementDescendantOfExtension(extensions, element) { return extensions.some(function (extension) { if (typeof extension.getInteractionElements !== 'function') { return false; } var extensionElements = extension.getInteractionElements(); if (!extensionElements) { return false; } if (!Array.isArray(extensionElements)) { extensionElements = [extensionElements]; } return extensionElements.some(function (el) { return MediumEditor.util.isDescendant(el, element, true); }); }); } var Events = function (instance) { this.base = instance; this.options = this.base.options; this.events = []; this.disabledEvents = {}; this.customEvents = {}; this.listeners = {}; }; Events.prototype = { InputEventOnContenteditableSupported: !MediumEditor.util.isIE && !MediumEditor.util.isEdge, // Helpers for event handling attachDOMEvent: function (targets, event, listener, useCapture) { var win = this.base.options.contentWindow, doc = this.base.options.ownerDocument; targets = MediumEditor.util.isElement(targets) || [win, doc].indexOf(targets) > -1 ? [targets] : targets; Array.prototype.forEach.call(targets, function (target) { target.addEventListener(event, listener, useCapture); this.events.push([target, event, listener, useCapture]); }.bind(this)); }, detachDOMEvent: function (targets, event, listener, useCapture) { var index, e, win = this.base.options.contentWindow, doc = this.base.options.ownerDocument; if (targets !== null) { targets = MediumEditor.util.isElement(targets) || [win, doc].indexOf(targets) > -1 ? [targets] : targets; Array.prototype.forEach.call(targets, function (target) { index = this.indexOfListener(target, event, listener, useCapture); if (index !== -1) { e = this.events.splice(index, 1)[0]; e[0].removeEventListener(e[1], e[2], e[3]); } }.bind(this)); } }, indexOfListener: function (target, event, listener, useCapture) { var i, n, item; for (i = 0, n = this.events.length; i < n; i = i + 1) { item = this.events[i]; if (item[0] === target && item[1] === event && item[2] === listener && item[3] === useCapture) { return i; } } return -1; }, detachAllDOMEvents: function () { var e = this.events.pop(); while (e) { e[0].removeEventListener(e[1], e[2], e[3]); e = this.events.pop(); } }, detachAllEventsFromElement: function (element) { var filtered = this.events.filter(function (e) { return e && e[0].getAttribute && e[0].getAttribute('medium-editor-index') === element.getAttribute('medium-editor-index'); }); for (var i = 0, len = filtered.length; i < len; i++) { var e = filtered[i]; this.detachDOMEvent(e[0], e[1], e[2], e[3]); } }, // Attach all existing handlers to a new element attachAllEventsToElement: function (element) { if (this.listeners['editableInput']) { this.contentCache[element.getAttribute('medium-editor-index')] = element.innerHTML; } if (this.eventsCache) { this.eventsCache.forEach(function (e) { this.attachDOMEvent(element, e['name'], e['handler'].bind(this)); }, this); } }, enableCustomEvent: function (event) { if (this.disabledEvents[event] !== undefined) { delete this.disabledEvents[event]; } }, disableCustomEvent: function (event) { this.disabledEvents[event] = true; }, // custom events attachCustomEvent: function (event, listener) { this.setupListener(event); if (!this.customEvents[event]) { this.customEvents[event] = []; } this.customEvents[event].push(listener); }, detachCustomEvent: function (event, listener) { var index = this.indexOfCustomListener(event, listener); if (index !== -1) { this.customEvents[event].splice(index, 1); // TODO: If array is empty, should detach internal listeners via destroyListener() } }, indexOfCustomListener: function (event, listener) { if (!this.customEvents[event] || !this.customEvents[event].length) { return -1; } return this.customEvents[event].indexOf(listener); }, detachAllCustomEvents: function () { this.customEvents = {}; // TODO: Should detach internal listeners here via destroyListener() }, triggerCustomEvent: function (name, data, editable) { if (this.customEvents[name] && !this.disabledEvents[name]) { this.customEvents[name].forEach(function (listener) { listener(data, editable); }); } }, // Cleaning up destroy: function () { this.detachAllDOMEvents(); this.detachAllCustomEvents(); this.detachExecCommand(); if (this.base.elements) { this.base.elements.forEach(function (element) { element.removeAttribute('data-medium-focused'); }); } }, // Listening to calls to document.execCommand // Attach a listener to be notified when document.execCommand is called attachToExecCommand: function () { if (this.execCommandListener) { return; } // Store an instance of the listener so: // 1) We only attach to execCommand once // 2) We can remove the listener later this.execCommandListener = function (execInfo) { this.handleDocumentExecCommand(execInfo); }.bind(this); // Ensure that execCommand has been wrapped correctly this.wrapExecCommand(); // Add listener to list of execCommand listeners this.options.ownerDocument.execCommand.listeners.push(this.execCommandListener); }, // Remove our listener for calls to document.execCommand detachExecCommand: function () { var doc = this.options.ownerDocument; if (!this.execCommandListener || !doc.execCommand.listeners) { return; } // Find the index of this listener in the array of listeners so it can be removed var index = doc.execCommand.listeners.indexOf(this.execCommandListener); if (index !== -1) { doc.execCommand.listeners.splice(index, 1); } // If the list of listeners is now empty, put execCommand back to its original state if (!doc.execCommand.listeners.length) { this.unwrapExecCommand(); } }, // Wrap document.execCommand in a custom method so we can listen to calls to it wrapExecCommand: function () { var doc = this.options.ownerDocument; // Ensure all instance of MediumEditor only wrap execCommand once if (doc.execCommand.listeners) { return; } // Helper method to call all listeners to execCommand var callListeners = function (args, result) { if (doc.execCommand.listeners) { doc.execCommand.listeners.forEach(function (listener) { listener({ command: args[0], value: args[2], args: args, result: result }); }); } }, // Create a wrapper method for execCommand which will: // 1) Call document.execCommand with the correct arguments // 2) Loop through any listeners and notify them that execCommand was called // passing extra info on the call // 3) Return the result wrapper = function () { var result = doc.execCommand.orig.apply(this, arguments); if (!doc.execCommand.listeners) { return result; } var args = Array.prototype.slice.call(arguments); callListeners(args, result); return result; }; // Store a reference to the original execCommand wrapper.orig = doc.execCommand; // Attach an array for storing listeners wrapper.listeners = []; // Helper for notifying listeners wrapper.callListeners = callListeners; // Overwrite execCommand doc.execCommand = wrapper; }, // Revert document.execCommand back to its original self unwrapExecCommand: function () { var doc = this.options.ownerDocument; if (!doc.execCommand.orig) { return; } // Use the reference to the original execCommand to revert back doc.execCommand = doc.execCommand.orig; }, // Listening to browser events to emit events medium-editor cares about setupListener: function (name) { if (this.listeners[name]) { return; } switch (name) { case 'externalInteraction': // Detecting when user has interacted with elements outside of MediumEditor this.attachDOMEvent(this.options.ownerDocument.body, 'mousedown', this.handleBodyMousedown.bind(this), true); this.attachDOMEvent(this.options.ownerDocument.body, 'click', this.handleBodyClick.bind(this), true); this.attachDOMEvent(this.options.ownerDocument.body, 'focus', this.handleBodyFocus.bind(this), true); break; case 'blur': // Detecting when focus is lost this.setupListener('externalInteraction'); break; case 'focus': // Detecting when focus moves into some part of MediumEditor this.setupListener('externalInteraction'); break; case 'editableInput': // setup cache for knowing when the content has changed this.contentCache = {}; this.base.elements.forEach(function (element) { this.contentCache[element.getAttribute('medium-editor-index')] = element.innerHTML; }, this); // Attach to the 'oninput' event, handled correctly by most browsers if (this.InputEventOnContenteditableSupported) { this.attachToEachElement('input', this.handleInput); } // For browsers which don't support the input event on contenteditable (IE) // we'll attach to 'selectionchange' on the document and 'keypress' on the editables if (!this.InputEventOnContenteditableSupported) { this.setupListener('editableKeypress'); this.keypressUpdateInput = true; this.attachDOMEvent(document, 'selectionchange', this.handleDocumentSelectionChange.bind(this)); // Listen to calls to execCommand this.attachToExecCommand(); } break; case 'editableClick': // Detecting click in the contenteditables this.attachToEachElement('click', this.handleClick); break; case 'editableBlur': // Detecting blur in the contenteditables this.attachToEachElement('blur', this.handleBlur); break; case 'editableKeypress': // Detecting keypress in the contenteditables this.attachToEachElement('keypress', this.handleKeypress); break; case 'editableKeyup': // Detecting keyup in the contenteditables this.attachToEachElement('keyup', this.handleKeyup); break; case 'editableKeydown': // Detecting keydown on the contenteditables this.attachToEachElement('keydown', this.handleKeydown); break; case 'editableKeydownSpace': // Detecting keydown for SPACE on the contenteditables this.setupListener('editableKeydown'); break; case 'editableKeydownEnter': // Detecting keydown for ENTER on the contenteditables this.setupListener('editableKeydown'); break; case 'editableKeydownTab': // Detecting keydown for TAB on the contenteditable this.setupListener('editableKeydown'); break; case 'editableKeydownDelete': // Detecting keydown for DELETE/BACKSPACE on the contenteditables this.setupListener('editableKeydown'); break; case 'editableMouseover': // Detecting mouseover on the contenteditables this.attachToEachElement('mouseover', this.handleMouseover); break; case 'editableDrag': // Detecting dragover and dragleave on the contenteditables this.attachToEachElement('dragover', this.handleDragging); this.attachToEachElement('dragleave', this.handleDragging); break; case 'editableDrop': // Detecting drop on the contenteditables this.attachToEachElement('drop', this.handleDrop); break; // TODO: We need to have a custom 'paste' event separate from 'editablePaste' // Need to think about the way to introduce this without breaking folks case 'editablePaste': // Detecting paste on the contenteditables this.attachToEachElement('paste', this.handlePaste); break; } this.listeners[name] = true; }, attachToEachElement: function (name, handler) { // build our internal cache to know which element got already what handler attached if (!this.eventsCache) { this.eventsCache = []; } this.base.elements.forEach(function (element) { this.attachDOMEvent(element, name, handler.bind(this)); }, this); this.eventsCache.push({ 'name': name, 'handler': handler }); }, cleanupElement: function (element) { var index = element.getAttribute('medium-editor-index'); if (index) { this.detachAllEventsFromElement(element); if (this.contentCache) { delete this.contentCache[index]; } } }, focusElement: function (element) { element.focus(); this.updateFocus(element, { target: element, type: 'focus' }); }, updateFocus: function (target, eventObj) { var hadFocus = this.base.getFocusedElement(), toFocus; // For clicks, we need to know if the mousedown that caused the click happened inside the existing focused element // or one of the extension elements. If so, we don't want to focus another element if (hadFocus && eventObj.type === 'click' && this.lastMousedownTarget && (MediumEditor.util.isDescendant(hadFocus, this.lastMousedownTarget, true) || isElementDescendantOfExtension(this.base.extensions, this.lastMousedownTarget))) { toFocus = hadFocus; } if (!toFocus) { this.base.elements.some(function (element) { // If the target is part of an editor element, this is the element getting focus if (!toFocus && (MediumEditor.util.isDescendant(element, target, true))) { toFocus = element; } // bail if we found an element that's getting focus return !!toFocus; }, this); } // Check if the target is external (not part of the editor, toolbar, or any other extension) var externalEvent = !MediumEditor.util.isDescendant(hadFocus, target, true) && !isElementDescendantOfExtension(this.base.extensions, target); if (toFocus !== hadFocus) { // If element has focus, and focus is going outside of editor // Don't blur focused element if clicking on editor, toolbar, or anchorpreview if (hadFocus && externalEvent) { // Trigger blur on the editable that has lost focus hadFocus.removeAttribute('data-medium-focused'); this.triggerCustomEvent('blur', eventObj, hadFocus); } // If focus is going into an editor element if (toFocus) { // Trigger focus on the editable that now has focus toFocus.setAttribute('data-medium-focused', true); this.triggerCustomEvent('focus', eventObj, toFocus); } } if (externalEvent) { this.triggerCustomEvent('externalInteraction', eventObj); } }, updateInput: function (target, eventObj) { if (!this.contentCache) { return; } // An event triggered which signifies that the user may have changed someting // Look in our cache of input for the contenteditables to see if something changed var index = target.getAttribute('medium-editor-index'), html = target.innerHTML; if (html !== this.contentCache[index]) { // The content has changed since the last time we checked, fire the event this.triggerCustomEvent('editableInput', eventObj, target); } this.contentCache[index] = html; }, handleDocumentSelectionChange: function (event) { // When selectionchange fires, target and current target are set // to document, since this is where the event is handled // However, currentTarget will have an 'activeElement' property // which will point to whatever element has focus. if (event.currentTarget && event.currentTarget.activeElement) { var activeElement = event.currentTarget.activeElement, currentTarget; // We can look at the 'activeElement' to determine if the selectionchange has // happened within a contenteditable owned by this instance of MediumEditor this.base.elements.some(function (element) { if (MediumEditor.util.isDescendant(element, activeElement, true)) { currentTarget = element; return true; } return false; }, this); // We know selectionchange fired within one of our contenteditables if (currentTarget) { this.updateInput(currentTarget, { target: activeElement, currentTarget: currentTarget }); } } }, handleDocumentExecCommand: function () { // document.execCommand has been called // If one of our contenteditables currently has focus, we should // attempt to trigger the 'editableInput' event var target = this.base.getFocusedElement(); if (target) { this.updateInput(target, { target: target, currentTarget: target }); } }, handleBodyClick: function (event) { this.updateFocus(event.target, event); }, handleBodyFocus: function (event) { this.updateFocus(event.target, event); }, handleBodyMousedown: function (event) { this.lastMousedownTarget = event.target; }, handleInput: function (event) { this.updateInput(event.currentTarget, event); }, handleClick: function (event) { this.triggerCustomEvent('editableClick', event, event.currentTarget); }, handleBlur: function (event) { this.triggerCustomEvent('editableBlur', event, event.currentTarget); }, handleKeypress: function (event) { this.triggerCustomEvent('editableKeypress', event, event.currentTarget); // If we're doing manual detection of the editableInput event we need // to check for input changes during 'keypress' if (this.keypressUpdateInput) { var eventObj = { target: event.target, currentTarget: event.currentTarget }; // In IE, we need to let the rest of the event stack complete before we detect // changes to input, so using setTimeout here setTimeout(function () { this.updateInput(eventObj.currentTarget, eventObj); }.bind(this), 0); } }, handleKeyup: function (event) { this.triggerCustomEvent('editableKeyup', event, event.currentTarget); }, handleMouseover: function (event) { this.triggerCustomEvent('editableMouseover', event, event.currentTarget); }, handleDragging: function (event) { this.triggerCustomEvent('editableDrag', event, event.currentTarget); }, handleDrop: function (event) { this.triggerCustomEvent('editableDrop', event, event.currentTarget); }, handlePaste: function (event) { this.triggerCustomEvent('editablePaste', event, event.currentTarget); }, handleKeydown: function (event) { this.triggerCustomEvent('editableKeydown', event, event.currentTarget); if (MediumEditor.util.isKey(event, MediumEditor.util.keyCode.SPACE)) { return this.triggerCustomEvent('editableKeydownSpace', event, event.currentTarget); } if (MediumEditor.util.isKey(event, MediumEditor.util.keyCode.ENTER) || (event.ctrlKey && MediumEditor.util.isKey(event, MediumEditor.util.keyCode.M))) { return this.triggerCustomEvent('editableKeydownEnter', event, event.currentTarget); } if (MediumEditor.util.isKey(event, MediumEditor.util.keyCode.TAB)) { return this.triggerCustomEvent('editableKeydownTab', event, event.currentTarget); } if (MediumEditor.util.isKey(event, [MediumEditor.util.keyCode.DELETE, MediumEditor.util.keyCode.BACKSPACE])) { return this.triggerCustomEvent('editableKeydownDelete', event, event.currentTarget); } } }; MediumEditor.Events = Events; }()); (function () { 'use strict'; var Button = MediumEditor.Extension.extend({ /* Button Options */ /* action: [string] * The action argument to pass to MediumEditor.execAction() * when the button is clicked */ action: undefined, /* aria: [string] * The value to add as the aria-label attribute of the button * element displayed in the toolbar. * This is also used as the tooltip for the button */ aria: undefined, /* tagNames: [Array] * NOTE: This is not used if useQueryState is set to true. * * Array of element tag names that would indicate that this * button has already been applied. If this action has already * been applied, the button will be displayed as 'active' in the toolbar * * Example: * For 'bold', if the text is ever within a or * tag that indicates the text is already bold. So the array * of tagNames for bold would be: ['b', 'strong'] */ tagNames: undefined, /* style: [Object] * NOTE: This is not used if useQueryState is set to true. * * A pair of css property & value(s) that indicate that this * button has already been applied. If this action has already * been applied, the button will be displayed as 'active' in the toolbar * Properties of the object: * prop [String]: name of the css property * value [String]: value(s) of the css property * multiple values can be separated by a '|' * * Example: * For 'bold', if the text is ever within an element with a 'font-weight' * style property set to '700' or 'bold', that indicates the text * is already bold. So the style object for bold would be: * { prop: 'font-weight', value: '700|bold' } */ style: undefined, /* useQueryState: [boolean] * Enables/disables whether this button should use the built-in * document.queryCommandState() method to determine whether * the action has already been applied. If the action has already * been applied, the button will be displayed as 'active' in the toolbar * * Example: * For 'bold', if this is set to true, the code will call: * document.queryCommandState('bold') which will return true if the * browser thinks the text is already bold, and false otherwise */ useQueryState: undefined, /* contentDefault: [string] * Default innerHTML to put inside the button */ contentDefault: undefined, /* contentFA: [string] * The innerHTML to use for the content of the button * if the `buttonLabels` option for MediumEditor is set to 'fontawesome' */ contentFA: undefined, /* classList: [Array] * An array of classNames (strings) to be added to the button */ classList: undefined, /* attrs: [object] * A set of key-value pairs to add to the button as custom attributes */ attrs: undefined, // The button constructor can optionally accept the name of a built-in button // (ie 'bold', 'italic', etc.) // When the name of a button is passed, it will initialize itself with the // configuration for that button constructor: function (options) { if (Button.isBuiltInButton(options)) { MediumEditor.Extension.call(this, this.defaults[options]); } else { MediumEditor.Extension.call(this, options); } }, init: function () { MediumEditor.Extension.prototype.init.apply(this, arguments); this.button = this.createButton(); this.on(this.button, 'click', this.handleClick.bind(this)); }, /* getButton: [function ()] * * If implemented, this function will be called when * the toolbar is being created. The DOM Element returned * by this function will be appended to the toolbar along * with any other buttons. */ getButton: function () { return this.button; }, getAction: function () { return (typeof this.action === 'function') ? this.action(this.base.options) : this.action; }, getAria: function () { return (typeof this.aria === 'function') ? this.aria(this.base.options) : this.aria; }, getTagNames: function () { return (typeof this.tagNames === 'function') ? this.tagNames(this.base.options) : this.tagNames; }, createButton: function () { var button = this.document.createElement('button'), content = this.contentDefault, ariaLabel = this.getAria(), buttonLabels = this.getEditorOption('buttonLabels'); // Add class names button.classList.add('medium-editor-action'); button.classList.add('medium-editor-action-' + this.name); if (this.classList) { this.classList.forEach(function (className) { button.classList.add(className); }); } // Add attributes button.setAttribute('data-action', this.getAction()); if (ariaLabel) { button.setAttribute('title', ariaLabel); button.setAttribute('aria-label', ariaLabel); } if (this.attrs) { Object.keys(this.attrs).forEach(function (attr) { button.setAttribute(attr, this.attrs[attr]); }, this); } if (buttonLabels === 'fontawesome' && this.contentFA) { content = this.contentFA; } button.innerHTML = content; return button; }, handleClick: function (event) { event.preventDefault(); event.stopPropagation(); var action = this.getAction(); if (action) { this.execAction(action); } }, isActive: function () { return this.button.classList.contains(this.getEditorOption('activeButtonClass')); }, setInactive: function () { this.button.classList.remove(this.getEditorOption('activeButtonClass')); delete this.knownState; }, setActive: function () { this.button.classList.add(this.getEditorOption('activeButtonClass')); delete this.knownState; }, queryCommandState: function () { var queryState = null; if (this.useQueryState) { queryState = this.base.queryCommandState(this.getAction()); } return queryState; }, isAlreadyApplied: function (node) { var isMatch = false, tagNames = this.getTagNames(), styleVals, computedStyle; if (this.knownState === false || this.knownState === true) { return this.knownState; } if (tagNames && tagNames.length > 0) { isMatch = tagNames.indexOf(node.nodeName.toLowerCase()) !== -1; } if (!isMatch && this.style) { styleVals = this.style.value.split('|'); computedStyle = this.window.getComputedStyle(node, null).getPropertyValue(this.style.prop); styleVals.forEach(function (val) { if (!this.knownState) { isMatch = (computedStyle.indexOf(val) !== -1); // text-decoration is not inherited by default // so if the computed style for text-decoration doesn't match // don't write to knownState so we can fallback to other checks if (isMatch || this.style.prop !== 'text-decoration') { this.knownState = isMatch; } } }, this); } return isMatch; } }); Button.isBuiltInButton = function (name) { return (typeof name === 'string') && MediumEditor.extensions.button.prototype.defaults.hasOwnProperty(name); }; MediumEditor.extensions.button = Button; }()); (function () { 'use strict'; /* MediumEditor.extensions.button.defaults: [Object] * Set of default config options for all of the built-in MediumEditor buttons */ MediumEditor.extensions.button.prototype.defaults = { 'bold': { name: 'bold', action: 'bold', aria: 'bold', tagNames: ['b', 'strong'], style: { prop: 'font-weight', value: '700|bold' }, useQueryState: true, contentDefault: 'B', contentFA: '' }, 'italic': { name: 'italic', action: 'italic', aria: 'italic', tagNames: ['i', 'em'], style: { prop: 'font-style', value: 'italic' }, useQueryState: true, contentDefault: 'I', contentFA: '' }, 'underline': { name: 'underline', action: 'underline', aria: 'underline', tagNames: ['u'], style: { prop: 'text-decoration', value: 'underline' }, useQueryState: true, contentDefault: 'U', contentFA: '' }, 'strikethrough': { name: 'strikethrough', action: 'strikethrough', aria: 'strike through', tagNames: ['strike'], style: { prop: 'text-decoration', value: 'line-through' }, useQueryState: true, contentDefault: 'A', contentFA: '' }, 'superscript': { name: 'superscript', action: 'superscript', aria: 'superscript', tagNames: ['sup'], /* firefox doesn't behave the way we want it to, so we CAN'T use queryCommandState for superscript https://github.com/guardian/scribe/blob/master/BROWSERINCONSISTENCIES.md#documentquerycommandstate */ // useQueryState: true contentDefault: 'x1', contentFA: '' }, 'subscript': { name: 'subscript', action: 'subscript', aria: 'subscript', tagNames: ['sub'], /* firefox doesn't behave the way we want it to, so we CAN'T use queryCommandState for subscript https://github.com/guardian/scribe/blob/master/BROWSERINCONSISTENCIES.md#documentquerycommandstate */ // useQueryState: true contentDefault: 'x1', contentFA: '' }, 'image': { name: 'image', action: 'image', aria: 'image', tagNames: ['img'], contentDefault: 'image', contentFA: '' }, 'html': { name: 'html', action: 'html', aria: 'evaluate html', tagNames: ['iframe', 'object'], contentDefault: 'html', contentFA: '' }, 'orderedlist': { name: 'orderedlist', action: 'insertorderedlist', aria: 'ordered list', tagNames: ['ol'], useQueryState: true, contentDefault: '1.', contentFA: '' }, 'unorderedlist': { name: 'unorderedlist', action: 'insertunorderedlist', aria: 'unordered list', tagNames: ['ul'], useQueryState: true, contentDefault: '•', contentFA: '' }, 'indent': { name: 'indent', action: 'indent', aria: 'indent', tagNames: [], contentDefault: '→', contentFA: '' }, 'outdent': { name: 'outdent', action: 'outdent', aria: 'outdent', tagNames: [], contentDefault: '←', contentFA: '' }, 'justifyCenter': { name: 'justifyCenter', action: 'justifyCenter', aria: 'center justify', tagNames: [], style: { prop: 'text-align', value: 'center' }, contentDefault: 'C', contentFA: '' }, 'justifyFull': { name: 'justifyFull', action: 'justifyFull', aria: 'full justify', tagNames: [], style: { prop: 'text-align', value: 'justify' }, contentDefault: 'J', contentFA: '' }, 'justifyLeft': { name: 'justifyLeft', action: 'justifyLeft', aria: 'left justify', tagNames: [], style: { prop: 'text-align', value: 'left' }, contentDefault: 'L', contentFA: '' }, 'justifyRight': { name: 'justifyRight', action: 'justifyRight', aria: 'right justify', tagNames: [], style: { prop: 'text-align', value: 'right' }, contentDefault: 'R', contentFA: '' }, // Known inline elements that are not removed, or not removed consistantly across browsers: // ,