lzyd-map-h/node_modules/html2canvas/dist/lib/render/canvas/foreignobject-renderer.js

"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
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};
var __generator = (this && this.__generator) || function (thisArg, body) {
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};
Object.defineProperty(exports, "__esModule", { value: true });
var logger_1 = require("../../core/logger");
var features_1 = require("../../core/features");
var color_1 = require("../../css/types/color");
var ForeignObjectRenderer = /** @class */ (function () {
    function ForeignObjectRenderer(options) {
        this.canvas = options.canvas ? options.canvas : document.createElement('canvas');
        this.ctx = this.canvas.getContext('2d');
        this.options = options;
        this.canvas.width = Math.floor(options.width * options.scale);
        this.canvas.height = Math.floor(options.height * options.scale);
        this.canvas.style.width = options.width + "px";
        this.canvas.style.height = options.height + "px";
        this.ctx.scale(this.options.scale, this.options.scale);
        this.ctx.translate(-options.x + options.scrollX, -options.y + options.scrollY);
        logger_1.Logger.getInstance(options.id).debug("EXPERIMENTAL ForeignObject renderer initialized (" + options.width + "x" + options.height + " at " + options.x + "," + options.y + ") with scale " + options.scale);
    }
    ForeignObjectRenderer.prototype.render = function (element) {
        return __awaiter(this, void 0, void 0, function () {
            var svg, img;
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0:
                        svg = features_1.createForeignObjectSVG(Math.max(this.options.windowWidth, this.options.width) * this.options.scale, Math.max(this.options.windowHeight, this.options.height) * this.options.scale, this.options.scrollX * this.options.scale, this.options.scrollY * this.options.scale, element);
                        return [4 /*yield*/, exports.loadSerializedSVG(svg)];
                    case 1:
                        img = _a.sent();
                        if (this.options.backgroundColor) {
                            this.ctx.fillStyle = color_1.asString(this.options.backgroundColor);
                            this.ctx.fillRect(0, 0, this.options.width * this.options.scale, this.options.height * this.options.scale);
                        }
                        this.ctx.drawImage(img, -this.options.x * this.options.scale, -this.options.y * this.options.scale);
                        return [2 /*return*/, this.canvas];
                }
            });
        });
    };
    return ForeignObjectRenderer;
}());
exports.ForeignObjectRenderer = ForeignObjectRenderer;
exports.loadSerializedSVG = function (svg) {
    return new Promise(function (resolve, reject) {
        var img = new Image();
        img.onload = function () {
            resolve(img);
        };
        img.onerror = reject;
        img.src = "data:image/svg+xml;charset=utf-8," + encodeURIComponent(new XMLSerializer().serializeToString(svg));
    });
};
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