invisible-watermark/lib/util.js

watermark auto injector

import jsonp from './jsonp';
var measureTextCtx = null;
export function measureText(text, fontSize) {
    if (fontSize === void 0) { fontSize = 13; }
    if (!measureTextCtx) {
        var canvas = document.createElement('canvas');
        canvas.style.display = 'none';
        measureTextCtx = canvas.getContext('2d');
    }
    if (typeof text !== 'string')
        return 0;
    measureTextCtx.font = fontSize + "px Microsoft YaHei";
    return measureTextCtx.measureText(text).width;
}
/**
 * 获取text或者sso返回的水印数据
 * @param param0
 * @returns string[]
 */
export function resolveText(_a) {
    var sso = _a.sso, text = _a.text;
    return new Promise(function (resolve, reject) {
        if (text)
            return resolve(text.split(/<br\/>/i));
        jsonp(sso, { prefix: '__sso_jp' }, function (err, res) {
            if (err) {
                console.error(err);
                return resolve([]);
            }
            var data = res.data;
            var _a = data.displayName, displayName = _a === void 0 ? '' : _a, _b = data.jobnumber, jobnumber = _b === void 0 ? '' : _b, _c = data.iid, iid = _c === void 0 ? '' : _c, _d = data.phone, phone = _d === void 0 ? '' : _d;
            var id = '';
            if (jobnumber) {
                id = jobnumber.substr(-5);
            }
            else if (iid) {
                id = iid;
            }
            else if (phone) {
                id = phone.substr(-4);
            }
            return resolve([displayName + ' ' + id]);
        });
    });
}