1030 lines
56 KiB
JavaScript
1030 lines
56 KiB
JavaScript
"use strict";
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var __extends = (this && this.__extends) || (function () {
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var extendStatics = function (d, b) {
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extendStatics = Object.setPrototypeOf ||
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({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
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function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
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return extendStatics(d, b);
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};
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return function (d, b) {
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if (typeof b !== "function" && b !== null)
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throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
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extendStatics(d, b);
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function __() { this.constructor = d; }
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d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
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};
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})();
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var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
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function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
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return new (P || (P = Promise))(function (resolve, reject) {
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function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
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function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
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function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
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step((generator = generator.apply(thisArg, _arguments || [])).next());
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});
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};
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var __generator = (this && this.__generator) || function (thisArg, body) {
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var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
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return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
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function verb(n) { return function (v) { return step([n, v]); }; }
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function step(op) {
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if (f) throw new TypeError("Generator is already executing.");
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while (_) try {
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if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
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if (y = 0, t) op = [op[0] & 2, t.value];
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switch (op[0]) {
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case 0: case 1: t = op; break;
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case 4: _.label++; return { value: op[1], done: false };
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case 5: _.label++; y = op[1]; op = [0]; continue;
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case 7: op = _.ops.pop(); _.trys.pop(); continue;
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default:
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if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
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if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
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if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
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if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
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if (t[2]) _.ops.pop();
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_.trys.pop(); continue;
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}
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op = body.call(thisArg, _);
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} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
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if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
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}
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.CanvasRenderer = void 0;
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var stacking_context_1 = require("../stacking-context");
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var color_1 = require("../../css/types/color");
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var path_1 = require("../path");
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var bound_curves_1 = require("../bound-curves");
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var bezier_curve_1 = require("../bezier-curve");
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var vector_1 = require("../vector");
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var image_1 = require("../../css/types/image");
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var border_1 = require("../border");
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var background_1 = require("../background");
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var parser_1 = require("../../css/syntax/parser");
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var text_1 = require("../../css/layout/text");
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var image_element_container_1 = require("../../dom/replaced-elements/image-element-container");
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var box_sizing_1 = require("../box-sizing");
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var canvas_element_container_1 = require("../../dom/replaced-elements/canvas-element-container");
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var svg_element_container_1 = require("../../dom/replaced-elements/svg-element-container");
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var effects_1 = require("../effects");
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var bitwise_1 = require("../../core/bitwise");
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var gradient_1 = require("../../css/types/functions/gradient");
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var length_percentage_1 = require("../../css/types/length-percentage");
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var font_metrics_1 = require("../font-metrics");
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var bounds_1 = require("../../css/layout/bounds");
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var line_height_1 = require("../../css/property-descriptors/line-height");
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var input_element_container_1 = require("../../dom/replaced-elements/input-element-container");
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var textarea_element_container_1 = require("../../dom/elements/textarea-element-container");
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var select_element_container_1 = require("../../dom/elements/select-element-container");
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var iframe_element_container_1 = require("../../dom/replaced-elements/iframe-element-container");
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var renderer_1 = require("../renderer");
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var MASK_OFFSET = 10000;
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var CanvasRenderer = /** @class */ (function (_super) {
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__extends(CanvasRenderer, _super);
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function CanvasRenderer(context, options) {
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var _this = _super.call(this, context, options) || this;
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_this._activeEffects = [];
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_this.canvas = options.canvas ? options.canvas : document.createElement('canvas');
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_this.ctx = _this.canvas.getContext('2d');
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if (!options.canvas) {
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_this.canvas.width = Math.floor(options.width * options.scale);
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_this.canvas.height = Math.floor(options.height * options.scale);
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_this.canvas.style.width = options.width + "px";
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_this.canvas.style.height = options.height + "px";
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}
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_this.fontMetrics = new font_metrics_1.FontMetrics(document);
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_this.ctx.scale(_this.options.scale, _this.options.scale);
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_this.ctx.translate(-options.x, -options.y);
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_this.ctx.textBaseline = 'bottom';
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_this._activeEffects = [];
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_this.context.logger.debug("Canvas renderer initialized (" + options.width + "x" + options.height + ") with scale " + options.scale);
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return _this;
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}
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CanvasRenderer.prototype.applyEffects = function (effects) {
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var _this = this;
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while (this._activeEffects.length) {
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this.popEffect();
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}
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effects.forEach(function (effect) { return _this.applyEffect(effect); });
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};
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CanvasRenderer.prototype.applyEffect = function (effect) {
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this.ctx.save();
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if (effects_1.isOpacityEffect(effect)) {
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this.ctx.globalAlpha = effect.opacity;
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}
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if (effects_1.isTransformEffect(effect)) {
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this.ctx.translate(effect.offsetX, effect.offsetY);
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this.ctx.transform(effect.matrix[0], effect.matrix[1], effect.matrix[2], effect.matrix[3], effect.matrix[4], effect.matrix[5]);
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this.ctx.translate(-effect.offsetX, -effect.offsetY);
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}
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if (effects_1.isClipEffect(effect)) {
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this.path(effect.path);
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this.ctx.clip();
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}
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this._activeEffects.push(effect);
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};
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CanvasRenderer.prototype.popEffect = function () {
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this._activeEffects.pop();
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this.ctx.restore();
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};
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CanvasRenderer.prototype.renderStack = function (stack) {
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return __awaiter(this, void 0, void 0, function () {
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var styles;
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return __generator(this, function (_a) {
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switch (_a.label) {
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case 0:
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styles = stack.element.container.styles;
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if (!styles.isVisible()) return [3 /*break*/, 2];
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return [4 /*yield*/, this.renderStackContent(stack)];
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case 1:
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_a.sent();
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_a.label = 2;
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case 2: return [2 /*return*/];
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}
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});
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});
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};
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CanvasRenderer.prototype.renderNode = function (paint) {
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return __awaiter(this, void 0, void 0, function () {
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return __generator(this, function (_a) {
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switch (_a.label) {
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case 0:
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if (bitwise_1.contains(paint.container.flags, 16 /* DEBUG_RENDER */)) {
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debugger;
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}
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if (!paint.container.styles.isVisible()) return [3 /*break*/, 3];
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return [4 /*yield*/, this.renderNodeBackgroundAndBorders(paint)];
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case 1:
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_a.sent();
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return [4 /*yield*/, this.renderNodeContent(paint)];
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case 2:
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_a.sent();
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_a.label = 3;
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case 3: return [2 /*return*/];
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}
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});
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});
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};
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CanvasRenderer.prototype.renderTextWithLetterSpacing = function (text, letterSpacing, baseline) {
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var _this = this;
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if (letterSpacing === 0) {
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this.ctx.fillText(text.text, text.bounds.left, text.bounds.top + baseline);
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}
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else {
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var letters = text_1.segmentGraphemes(text.text);
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letters.reduce(function (left, letter) {
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_this.ctx.fillText(letter, left, text.bounds.top + baseline);
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return left + _this.ctx.measureText(letter).width;
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}, text.bounds.left);
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}
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};
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CanvasRenderer.prototype.createFontStyle = function (styles) {
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var fontVariant = styles.fontVariant
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.filter(function (variant) { return variant === 'normal' || variant === 'small-caps'; })
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.join('');
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var fontFamily = fixIOSSystemFonts(styles.fontFamily).join(', ');
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var fontSize = parser_1.isDimensionToken(styles.fontSize)
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? "" + styles.fontSize.number + styles.fontSize.unit
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: styles.fontSize.number + "px";
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return [
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[styles.fontStyle, fontVariant, styles.fontWeight, fontSize, fontFamily].join(' '),
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fontFamily,
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fontSize
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];
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};
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CanvasRenderer.prototype.renderTextNode = function (text, styles) {
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return __awaiter(this, void 0, void 0, function () {
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var _a, font, fontFamily, fontSize, _b, baseline, middle, paintOrder;
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var _this = this;
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return __generator(this, function (_c) {
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_a = this.createFontStyle(styles), font = _a[0], fontFamily = _a[1], fontSize = _a[2];
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this.ctx.font = font;
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this.ctx.direction = styles.direction === 1 /* RTL */ ? 'rtl' : 'ltr';
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this.ctx.textAlign = 'left';
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this.ctx.textBaseline = 'alphabetic';
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_b = this.fontMetrics.getMetrics(fontFamily, fontSize), baseline = _b.baseline, middle = _b.middle;
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paintOrder = styles.paintOrder;
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text.textBounds.forEach(function (text) {
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paintOrder.forEach(function (paintOrderLayer) {
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switch (paintOrderLayer) {
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case 0 /* FILL */:
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_this.ctx.fillStyle = color_1.asString(styles.color);
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_this.renderTextWithLetterSpacing(text, styles.letterSpacing, baseline);
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var textShadows = styles.textShadow;
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if (textShadows.length && text.text.trim().length) {
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textShadows
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.slice(0)
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.reverse()
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.forEach(function (textShadow) {
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_this.ctx.shadowColor = color_1.asString(textShadow.color);
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_this.ctx.shadowOffsetX = textShadow.offsetX.number * _this.options.scale;
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_this.ctx.shadowOffsetY = textShadow.offsetY.number * _this.options.scale;
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_this.ctx.shadowBlur = textShadow.blur.number;
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_this.renderTextWithLetterSpacing(text, styles.letterSpacing, baseline);
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});
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_this.ctx.shadowColor = '';
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_this.ctx.shadowOffsetX = 0;
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_this.ctx.shadowOffsetY = 0;
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_this.ctx.shadowBlur = 0;
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}
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if (styles.textDecorationLine.length) {
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_this.ctx.fillStyle = color_1.asString(styles.textDecorationColor || styles.color);
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styles.textDecorationLine.forEach(function (textDecorationLine) {
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switch (textDecorationLine) {
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case 1 /* UNDERLINE */:
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// Draws a line at the baseline of the font
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// TODO As some browsers display the line as more than 1px if the font-size is big,
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// need to take that into account both in position and size
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_this.ctx.fillRect(text.bounds.left, Math.round(text.bounds.top + baseline), text.bounds.width, 1);
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break;
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case 2 /* OVERLINE */:
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_this.ctx.fillRect(text.bounds.left, Math.round(text.bounds.top), text.bounds.width, 1);
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break;
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case 3 /* LINE_THROUGH */:
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// TODO try and find exact position for line-through
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_this.ctx.fillRect(text.bounds.left, Math.ceil(text.bounds.top + middle), text.bounds.width, 1);
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break;
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}
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});
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}
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break;
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case 1 /* STROKE */:
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if (styles.webkitTextStrokeWidth && text.text.trim().length) {
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_this.ctx.strokeStyle = color_1.asString(styles.webkitTextStrokeColor);
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_this.ctx.lineWidth = styles.webkitTextStrokeWidth;
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// eslint-disable-next-line @typescript-eslint/no-explicit-any
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_this.ctx.lineJoin = !!window.chrome ? 'miter' : 'round';
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_this.ctx.strokeText(text.text, text.bounds.left, text.bounds.top + baseline);
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}
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_this.ctx.strokeStyle = '';
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_this.ctx.lineWidth = 0;
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_this.ctx.lineJoin = 'miter';
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break;
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}
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});
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});
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return [2 /*return*/];
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});
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});
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};
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CanvasRenderer.prototype.renderReplacedElement = function (container, curves, image) {
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if (image && container.intrinsicWidth > 0 && container.intrinsicHeight > 0) {
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var box = box_sizing_1.contentBox(container);
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var path = bound_curves_1.calculatePaddingBoxPath(curves);
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this.path(path);
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this.ctx.save();
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this.ctx.clip();
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this.ctx.drawImage(image, 0, 0, container.intrinsicWidth, container.intrinsicHeight, box.left, box.top, box.width, box.height);
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this.ctx.restore();
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}
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};
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CanvasRenderer.prototype.renderNodeContent = function (paint) {
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return __awaiter(this, void 0, void 0, function () {
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var container, curves, styles, _i, _a, child, image, e_1, image, e_2, iframeRenderer, canvas, size, _b, fontFamily, fontSize, baseline, bounds, x, textBounds, img, image, url, e_3, fontFamily, bounds;
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return __generator(this, function (_c) {
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switch (_c.label) {
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case 0:
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this.applyEffects(paint.getEffects(4 /* CONTENT */));
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container = paint.container;
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curves = paint.curves;
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styles = container.styles;
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_i = 0, _a = container.textNodes;
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_c.label = 1;
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case 1:
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if (!(_i < _a.length)) return [3 /*break*/, 4];
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child = _a[_i];
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return [4 /*yield*/, this.renderTextNode(child, styles)];
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case 2:
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_c.sent();
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_c.label = 3;
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case 3:
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_i++;
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return [3 /*break*/, 1];
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case 4:
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if (!(container instanceof image_element_container_1.ImageElementContainer)) return [3 /*break*/, 8];
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_c.label = 5;
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case 5:
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_c.trys.push([5, 7, , 8]);
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return [4 /*yield*/, this.context.cache.match(container.src)];
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case 6:
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image = _c.sent();
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this.renderReplacedElement(container, curves, image);
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return [3 /*break*/, 8];
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case 7:
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e_1 = _c.sent();
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this.context.logger.error("Error loading image " + container.src);
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return [3 /*break*/, 8];
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case 8:
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if (container instanceof canvas_element_container_1.CanvasElementContainer) {
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this.renderReplacedElement(container, curves, container.canvas);
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}
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if (!(container instanceof svg_element_container_1.SVGElementContainer)) return [3 /*break*/, 12];
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_c.label = 9;
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case 9:
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_c.trys.push([9, 11, , 12]);
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return [4 /*yield*/, this.context.cache.match(container.svg)];
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case 10:
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image = _c.sent();
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this.renderReplacedElement(container, curves, image);
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return [3 /*break*/, 12];
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case 11:
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e_2 = _c.sent();
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this.context.logger.error("Error loading svg " + container.svg.substring(0, 255));
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return [3 /*break*/, 12];
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case 12:
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if (!(container instanceof iframe_element_container_1.IFrameElementContainer && container.tree)) return [3 /*break*/, 14];
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iframeRenderer = new CanvasRenderer(this.context, {
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scale: this.options.scale,
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backgroundColor: container.backgroundColor,
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x: 0,
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y: 0,
|
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width: container.width,
|
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height: container.height
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});
|
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return [4 /*yield*/, iframeRenderer.render(container.tree)];
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case 13:
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canvas = _c.sent();
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if (container.width && container.height) {
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this.ctx.drawImage(canvas, 0, 0, container.width, container.height, container.bounds.left, container.bounds.top, container.bounds.width, container.bounds.height);
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}
|
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_c.label = 14;
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case 14:
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if (container instanceof input_element_container_1.InputElementContainer) {
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size = Math.min(container.bounds.width, container.bounds.height);
|
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if (container.type === input_element_container_1.CHECKBOX) {
|
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if (container.checked) {
|
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this.ctx.save();
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this.path([
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new vector_1.Vector(container.bounds.left + size * 0.39363, container.bounds.top + size * 0.79),
|
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new vector_1.Vector(container.bounds.left + size * 0.16, container.bounds.top + size * 0.5549),
|
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new vector_1.Vector(container.bounds.left + size * 0.27347, container.bounds.top + size * 0.44071),
|
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new vector_1.Vector(container.bounds.left + size * 0.39694, container.bounds.top + size * 0.5649),
|
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new vector_1.Vector(container.bounds.left + size * 0.72983, container.bounds.top + size * 0.23),
|
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new vector_1.Vector(container.bounds.left + size * 0.84, container.bounds.top + size * 0.34085),
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new vector_1.Vector(container.bounds.left + size * 0.39363, container.bounds.top + size * 0.79)
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]);
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this.ctx.fillStyle = color_1.asString(input_element_container_1.INPUT_COLOR);
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this.ctx.fill();
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this.ctx.restore();
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}
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}
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else if (container.type === input_element_container_1.RADIO) {
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if (container.checked) {
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this.ctx.save();
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this.ctx.beginPath();
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this.ctx.arc(container.bounds.left + size / 2, container.bounds.top + size / 2, size / 4, 0, Math.PI * 2, true);
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this.ctx.fillStyle = color_1.asString(input_element_container_1.INPUT_COLOR);
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this.ctx.fill();
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this.ctx.restore();
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}
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}
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}
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if (isTextInputElement(container) && container.value.length) {
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_b = this.createFontStyle(styles), fontFamily = _b[0], fontSize = _b[1];
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baseline = this.fontMetrics.getMetrics(fontFamily, fontSize).baseline;
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this.ctx.font = fontFamily;
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this.ctx.fillStyle = color_1.asString(styles.color);
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this.ctx.textBaseline = 'alphabetic';
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this.ctx.textAlign = canvasTextAlign(container.styles.textAlign);
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bounds = box_sizing_1.contentBox(container);
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x = 0;
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switch (container.styles.textAlign) {
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case 1 /* CENTER */:
|
|
x += bounds.width / 2;
|
|
break;
|
|
case 2 /* RIGHT */:
|
|
x += bounds.width;
|
|
break;
|
|
}
|
|
textBounds = bounds.add(x, 0, 0, -bounds.height / 2 + 1);
|
|
this.ctx.save();
|
|
this.path([
|
|
new vector_1.Vector(bounds.left, bounds.top),
|
|
new vector_1.Vector(bounds.left + bounds.width, bounds.top),
|
|
new vector_1.Vector(bounds.left + bounds.width, bounds.top + bounds.height),
|
|
new vector_1.Vector(bounds.left, bounds.top + bounds.height)
|
|
]);
|
|
this.ctx.clip();
|
|
this.renderTextWithLetterSpacing(new text_1.TextBounds(container.value, textBounds), styles.letterSpacing, baseline);
|
|
this.ctx.restore();
|
|
this.ctx.textBaseline = 'alphabetic';
|
|
this.ctx.textAlign = 'left';
|
|
}
|
|
if (!bitwise_1.contains(container.styles.display, 2048 /* LIST_ITEM */)) return [3 /*break*/, 20];
|
|
if (!(container.styles.listStyleImage !== null)) return [3 /*break*/, 19];
|
|
img = container.styles.listStyleImage;
|
|
if (!(img.type === 0 /* URL */)) return [3 /*break*/, 18];
|
|
image = void 0;
|
|
url = img.url;
|
|
_c.label = 15;
|
|
case 15:
|
|
_c.trys.push([15, 17, , 18]);
|
|
return [4 /*yield*/, this.context.cache.match(url)];
|
|
case 16:
|
|
image = _c.sent();
|
|
this.ctx.drawImage(image, container.bounds.left - (image.width + 10), container.bounds.top);
|
|
return [3 /*break*/, 18];
|
|
case 17:
|
|
e_3 = _c.sent();
|
|
this.context.logger.error("Error loading list-style-image " + url);
|
|
return [3 /*break*/, 18];
|
|
case 18: return [3 /*break*/, 20];
|
|
case 19:
|
|
if (paint.listValue && container.styles.listStyleType !== -1 /* NONE */) {
|
|
fontFamily = this.createFontStyle(styles)[0];
|
|
this.ctx.font = fontFamily;
|
|
this.ctx.fillStyle = color_1.asString(styles.color);
|
|
this.ctx.textBaseline = 'middle';
|
|
this.ctx.textAlign = 'right';
|
|
bounds = new bounds_1.Bounds(container.bounds.left, container.bounds.top + length_percentage_1.getAbsoluteValue(container.styles.paddingTop, container.bounds.width), container.bounds.width, line_height_1.computeLineHeight(styles.lineHeight, styles.fontSize.number) / 2 + 1);
|
|
this.renderTextWithLetterSpacing(new text_1.TextBounds(paint.listValue, bounds), styles.letterSpacing, line_height_1.computeLineHeight(styles.lineHeight, styles.fontSize.number) / 2 + 2);
|
|
this.ctx.textBaseline = 'bottom';
|
|
this.ctx.textAlign = 'left';
|
|
}
|
|
_c.label = 20;
|
|
case 20: return [2 /*return*/];
|
|
}
|
|
});
|
|
});
|
|
};
|
|
CanvasRenderer.prototype.renderStackContent = function (stack) {
|
|
return __awaiter(this, void 0, void 0, function () {
|
|
var _i, _a, child, _b, _c, child, _d, _e, child, _f, _g, child, _h, _j, child, _k, _l, child, _m, _o, child;
|
|
return __generator(this, function (_p) {
|
|
switch (_p.label) {
|
|
case 0:
|
|
if (bitwise_1.contains(stack.element.container.flags, 16 /* DEBUG_RENDER */)) {
|
|
debugger;
|
|
}
|
|
// https://www.w3.org/TR/css-position-3/#painting-order
|
|
// 1. the background and borders of the element forming the stacking context.
|
|
return [4 /*yield*/, this.renderNodeBackgroundAndBorders(stack.element)];
|
|
case 1:
|
|
// https://www.w3.org/TR/css-position-3/#painting-order
|
|
// 1. the background and borders of the element forming the stacking context.
|
|
_p.sent();
|
|
_i = 0, _a = stack.negativeZIndex;
|
|
_p.label = 2;
|
|
case 2:
|
|
if (!(_i < _a.length)) return [3 /*break*/, 5];
|
|
child = _a[_i];
|
|
return [4 /*yield*/, this.renderStack(child)];
|
|
case 3:
|
|
_p.sent();
|
|
_p.label = 4;
|
|
case 4:
|
|
_i++;
|
|
return [3 /*break*/, 2];
|
|
case 5:
|
|
// 3. For all its in-flow, non-positioned, block-level descendants in tree order:
|
|
return [4 /*yield*/, this.renderNodeContent(stack.element)];
|
|
case 6:
|
|
// 3. For all its in-flow, non-positioned, block-level descendants in tree order:
|
|
_p.sent();
|
|
_b = 0, _c = stack.nonInlineLevel;
|
|
_p.label = 7;
|
|
case 7:
|
|
if (!(_b < _c.length)) return [3 /*break*/, 10];
|
|
child = _c[_b];
|
|
return [4 /*yield*/, this.renderNode(child)];
|
|
case 8:
|
|
_p.sent();
|
|
_p.label = 9;
|
|
case 9:
|
|
_b++;
|
|
return [3 /*break*/, 7];
|
|
case 10:
|
|
_d = 0, _e = stack.nonPositionedFloats;
|
|
_p.label = 11;
|
|
case 11:
|
|
if (!(_d < _e.length)) return [3 /*break*/, 14];
|
|
child = _e[_d];
|
|
return [4 /*yield*/, this.renderStack(child)];
|
|
case 12:
|
|
_p.sent();
|
|
_p.label = 13;
|
|
case 13:
|
|
_d++;
|
|
return [3 /*break*/, 11];
|
|
case 14:
|
|
_f = 0, _g = stack.nonPositionedInlineLevel;
|
|
_p.label = 15;
|
|
case 15:
|
|
if (!(_f < _g.length)) return [3 /*break*/, 18];
|
|
child = _g[_f];
|
|
return [4 /*yield*/, this.renderStack(child)];
|
|
case 16:
|
|
_p.sent();
|
|
_p.label = 17;
|
|
case 17:
|
|
_f++;
|
|
return [3 /*break*/, 15];
|
|
case 18:
|
|
_h = 0, _j = stack.inlineLevel;
|
|
_p.label = 19;
|
|
case 19:
|
|
if (!(_h < _j.length)) return [3 /*break*/, 22];
|
|
child = _j[_h];
|
|
return [4 /*yield*/, this.renderNode(child)];
|
|
case 20:
|
|
_p.sent();
|
|
_p.label = 21;
|
|
case 21:
|
|
_h++;
|
|
return [3 /*break*/, 19];
|
|
case 22:
|
|
_k = 0, _l = stack.zeroOrAutoZIndexOrTransformedOrOpacity;
|
|
_p.label = 23;
|
|
case 23:
|
|
if (!(_k < _l.length)) return [3 /*break*/, 26];
|
|
child = _l[_k];
|
|
return [4 /*yield*/, this.renderStack(child)];
|
|
case 24:
|
|
_p.sent();
|
|
_p.label = 25;
|
|
case 25:
|
|
_k++;
|
|
return [3 /*break*/, 23];
|
|
case 26:
|
|
_m = 0, _o = stack.positiveZIndex;
|
|
_p.label = 27;
|
|
case 27:
|
|
if (!(_m < _o.length)) return [3 /*break*/, 30];
|
|
child = _o[_m];
|
|
return [4 /*yield*/, this.renderStack(child)];
|
|
case 28:
|
|
_p.sent();
|
|
_p.label = 29;
|
|
case 29:
|
|
_m++;
|
|
return [3 /*break*/, 27];
|
|
case 30: return [2 /*return*/];
|
|
}
|
|
});
|
|
});
|
|
};
|
|
CanvasRenderer.prototype.mask = function (paths) {
|
|
this.ctx.beginPath();
|
|
this.ctx.moveTo(0, 0);
|
|
this.ctx.lineTo(this.canvas.width, 0);
|
|
this.ctx.lineTo(this.canvas.width, this.canvas.height);
|
|
this.ctx.lineTo(0, this.canvas.height);
|
|
this.ctx.lineTo(0, 0);
|
|
this.formatPath(paths.slice(0).reverse());
|
|
this.ctx.closePath();
|
|
};
|
|
CanvasRenderer.prototype.path = function (paths) {
|
|
this.ctx.beginPath();
|
|
this.formatPath(paths);
|
|
this.ctx.closePath();
|
|
};
|
|
CanvasRenderer.prototype.formatPath = function (paths) {
|
|
var _this = this;
|
|
paths.forEach(function (point, index) {
|
|
var start = bezier_curve_1.isBezierCurve(point) ? point.start : point;
|
|
if (index === 0) {
|
|
_this.ctx.moveTo(start.x, start.y);
|
|
}
|
|
else {
|
|
_this.ctx.lineTo(start.x, start.y);
|
|
}
|
|
if (bezier_curve_1.isBezierCurve(point)) {
|
|
_this.ctx.bezierCurveTo(point.startControl.x, point.startControl.y, point.endControl.x, point.endControl.y, point.end.x, point.end.y);
|
|
}
|
|
});
|
|
};
|
|
CanvasRenderer.prototype.renderRepeat = function (path, pattern, offsetX, offsetY) {
|
|
this.path(path);
|
|
this.ctx.fillStyle = pattern;
|
|
this.ctx.translate(offsetX, offsetY);
|
|
this.ctx.fill();
|
|
this.ctx.translate(-offsetX, -offsetY);
|
|
};
|
|
CanvasRenderer.prototype.resizeImage = function (image, width, height) {
|
|
var _a;
|
|
if (image.width === width && image.height === height) {
|
|
return image;
|
|
}
|
|
var ownerDocument = (_a = this.canvas.ownerDocument) !== null && _a !== void 0 ? _a : document;
|
|
var canvas = ownerDocument.createElement('canvas');
|
|
canvas.width = Math.max(1, width);
|
|
canvas.height = Math.max(1, height);
|
|
var ctx = canvas.getContext('2d');
|
|
ctx.drawImage(image, 0, 0, image.width, image.height, 0, 0, width, height);
|
|
return canvas;
|
|
};
|
|
CanvasRenderer.prototype.renderBackgroundImage = function (container) {
|
|
return __awaiter(this, void 0, void 0, function () {
|
|
var index, _loop_1, this_1, _i, _a, backgroundImage;
|
|
return __generator(this, function (_b) {
|
|
switch (_b.label) {
|
|
case 0:
|
|
index = container.styles.backgroundImage.length - 1;
|
|
_loop_1 = function (backgroundImage) {
|
|
var image, url, e_4, _c, path, x, y, width, height, pattern, _d, path, x, y, width, height, _e, lineLength, x0, x1, y0, y1, canvas, ctx, gradient_2, pattern, _f, path, left, top_1, width, height, position, x, y, _g, rx, ry, radialGradient_1, midX, midY, f, invF;
|
|
return __generator(this, function (_h) {
|
|
switch (_h.label) {
|
|
case 0:
|
|
if (!(backgroundImage.type === 0 /* URL */)) return [3 /*break*/, 5];
|
|
image = void 0;
|
|
url = backgroundImage.url;
|
|
_h.label = 1;
|
|
case 1:
|
|
_h.trys.push([1, 3, , 4]);
|
|
return [4 /*yield*/, this_1.context.cache.match(url)];
|
|
case 2:
|
|
image = _h.sent();
|
|
return [3 /*break*/, 4];
|
|
case 3:
|
|
e_4 = _h.sent();
|
|
this_1.context.logger.error("Error loading background-image " + url);
|
|
return [3 /*break*/, 4];
|
|
case 4:
|
|
if (image) {
|
|
_c = background_1.calculateBackgroundRendering(container, index, [
|
|
image.width,
|
|
image.height,
|
|
image.width / image.height
|
|
]), path = _c[0], x = _c[1], y = _c[2], width = _c[3], height = _c[4];
|
|
pattern = this_1.ctx.createPattern(this_1.resizeImage(image, width, height), 'repeat');
|
|
this_1.renderRepeat(path, pattern, x, y);
|
|
}
|
|
return [3 /*break*/, 6];
|
|
case 5:
|
|
if (image_1.isLinearGradient(backgroundImage)) {
|
|
_d = background_1.calculateBackgroundRendering(container, index, [null, null, null]), path = _d[0], x = _d[1], y = _d[2], width = _d[3], height = _d[4];
|
|
_e = gradient_1.calculateGradientDirection(backgroundImage.angle, width, height), lineLength = _e[0], x0 = _e[1], x1 = _e[2], y0 = _e[3], y1 = _e[4];
|
|
canvas = document.createElement('canvas');
|
|
canvas.width = width;
|
|
canvas.height = height;
|
|
ctx = canvas.getContext('2d');
|
|
gradient_2 = ctx.createLinearGradient(x0, y0, x1, y1);
|
|
gradient_1.processColorStops(backgroundImage.stops, lineLength).forEach(function (colorStop) {
|
|
return gradient_2.addColorStop(colorStop.stop, color_1.asString(colorStop.color));
|
|
});
|
|
ctx.fillStyle = gradient_2;
|
|
ctx.fillRect(0, 0, width, height);
|
|
if (width > 0 && height > 0) {
|
|
pattern = this_1.ctx.createPattern(canvas, 'repeat');
|
|
this_1.renderRepeat(path, pattern, x, y);
|
|
}
|
|
}
|
|
else if (image_1.isRadialGradient(backgroundImage)) {
|
|
_f = background_1.calculateBackgroundRendering(container, index, [
|
|
null,
|
|
null,
|
|
null
|
|
]), path = _f[0], left = _f[1], top_1 = _f[2], width = _f[3], height = _f[4];
|
|
position = backgroundImage.position.length === 0 ? [length_percentage_1.FIFTY_PERCENT] : backgroundImage.position;
|
|
x = length_percentage_1.getAbsoluteValue(position[0], width);
|
|
y = length_percentage_1.getAbsoluteValue(position[position.length - 1], height);
|
|
_g = gradient_1.calculateRadius(backgroundImage, x, y, width, height), rx = _g[0], ry = _g[1];
|
|
if (rx > 0 && ry > 0) {
|
|
radialGradient_1 = this_1.ctx.createRadialGradient(left + x, top_1 + y, 0, left + x, top_1 + y, rx);
|
|
gradient_1.processColorStops(backgroundImage.stops, rx * 2).forEach(function (colorStop) {
|
|
return radialGradient_1.addColorStop(colorStop.stop, color_1.asString(colorStop.color));
|
|
});
|
|
this_1.path(path);
|
|
this_1.ctx.fillStyle = radialGradient_1;
|
|
if (rx !== ry) {
|
|
midX = container.bounds.left + 0.5 * container.bounds.width;
|
|
midY = container.bounds.top + 0.5 * container.bounds.height;
|
|
f = ry / rx;
|
|
invF = 1 / f;
|
|
this_1.ctx.save();
|
|
this_1.ctx.translate(midX, midY);
|
|
this_1.ctx.transform(1, 0, 0, f, 0, 0);
|
|
this_1.ctx.translate(-midX, -midY);
|
|
this_1.ctx.fillRect(left, invF * (top_1 - midY) + midY, width, height * invF);
|
|
this_1.ctx.restore();
|
|
}
|
|
else {
|
|
this_1.ctx.fill();
|
|
}
|
|
}
|
|
}
|
|
_h.label = 6;
|
|
case 6:
|
|
index--;
|
|
return [2 /*return*/];
|
|
}
|
|
});
|
|
};
|
|
this_1 = this;
|
|
_i = 0, _a = container.styles.backgroundImage.slice(0).reverse();
|
|
_b.label = 1;
|
|
case 1:
|
|
if (!(_i < _a.length)) return [3 /*break*/, 4];
|
|
backgroundImage = _a[_i];
|
|
return [5 /*yield**/, _loop_1(backgroundImage)];
|
|
case 2:
|
|
_b.sent();
|
|
_b.label = 3;
|
|
case 3:
|
|
_i++;
|
|
return [3 /*break*/, 1];
|
|
case 4: return [2 /*return*/];
|
|
}
|
|
});
|
|
});
|
|
};
|
|
CanvasRenderer.prototype.renderSolidBorder = function (color, side, curvePoints) {
|
|
return __awaiter(this, void 0, void 0, function () {
|
|
return __generator(this, function (_a) {
|
|
this.path(border_1.parsePathForBorder(curvePoints, side));
|
|
this.ctx.fillStyle = color_1.asString(color);
|
|
this.ctx.fill();
|
|
return [2 /*return*/];
|
|
});
|
|
});
|
|
};
|
|
CanvasRenderer.prototype.renderDoubleBorder = function (color, width, side, curvePoints) {
|
|
return __awaiter(this, void 0, void 0, function () {
|
|
var outerPaths, innerPaths;
|
|
return __generator(this, function (_a) {
|
|
switch (_a.label) {
|
|
case 0:
|
|
if (!(width < 3)) return [3 /*break*/, 2];
|
|
return [4 /*yield*/, this.renderSolidBorder(color, side, curvePoints)];
|
|
case 1:
|
|
_a.sent();
|
|
return [2 /*return*/];
|
|
case 2:
|
|
outerPaths = border_1.parsePathForBorderDoubleOuter(curvePoints, side);
|
|
this.path(outerPaths);
|
|
this.ctx.fillStyle = color_1.asString(color);
|
|
this.ctx.fill();
|
|
innerPaths = border_1.parsePathForBorderDoubleInner(curvePoints, side);
|
|
this.path(innerPaths);
|
|
this.ctx.fill();
|
|
return [2 /*return*/];
|
|
}
|
|
});
|
|
});
|
|
};
|
|
CanvasRenderer.prototype.renderNodeBackgroundAndBorders = function (paint) {
|
|
return __awaiter(this, void 0, void 0, function () {
|
|
var styles, hasBackground, borders, backgroundPaintingArea, side, _i, borders_1, border;
|
|
var _this = this;
|
|
return __generator(this, function (_a) {
|
|
switch (_a.label) {
|
|
case 0:
|
|
this.applyEffects(paint.getEffects(2 /* BACKGROUND_BORDERS */));
|
|
styles = paint.container.styles;
|
|
hasBackground = !color_1.isTransparent(styles.backgroundColor) || styles.backgroundImage.length;
|
|
borders = [
|
|
{ style: styles.borderTopStyle, color: styles.borderTopColor, width: styles.borderTopWidth },
|
|
{ style: styles.borderRightStyle, color: styles.borderRightColor, width: styles.borderRightWidth },
|
|
{ style: styles.borderBottomStyle, color: styles.borderBottomColor, width: styles.borderBottomWidth },
|
|
{ style: styles.borderLeftStyle, color: styles.borderLeftColor, width: styles.borderLeftWidth }
|
|
];
|
|
backgroundPaintingArea = calculateBackgroundCurvedPaintingArea(background_1.getBackgroundValueForIndex(styles.backgroundClip, 0), paint.curves);
|
|
if (!(hasBackground || styles.boxShadow.length)) return [3 /*break*/, 2];
|
|
this.ctx.save();
|
|
this.path(backgroundPaintingArea);
|
|
this.ctx.clip();
|
|
if (!color_1.isTransparent(styles.backgroundColor)) {
|
|
this.ctx.fillStyle = color_1.asString(styles.backgroundColor);
|
|
this.ctx.fill();
|
|
}
|
|
return [4 /*yield*/, this.renderBackgroundImage(paint.container)];
|
|
case 1:
|
|
_a.sent();
|
|
this.ctx.restore();
|
|
styles.boxShadow
|
|
.slice(0)
|
|
.reverse()
|
|
.forEach(function (shadow) {
|
|
_this.ctx.save();
|
|
var borderBoxArea = bound_curves_1.calculateBorderBoxPath(paint.curves);
|
|
var maskOffset = shadow.inset ? 0 : MASK_OFFSET;
|
|
var shadowPaintingArea = path_1.transformPath(borderBoxArea, -maskOffset + (shadow.inset ? 1 : -1) * shadow.spread.number, (shadow.inset ? 1 : -1) * shadow.spread.number, shadow.spread.number * (shadow.inset ? -2 : 2), shadow.spread.number * (shadow.inset ? -2 : 2));
|
|
if (shadow.inset) {
|
|
_this.path(borderBoxArea);
|
|
_this.ctx.clip();
|
|
_this.mask(shadowPaintingArea);
|
|
}
|
|
else {
|
|
_this.mask(borderBoxArea);
|
|
_this.ctx.clip();
|
|
_this.path(shadowPaintingArea);
|
|
}
|
|
_this.ctx.shadowOffsetX = shadow.offsetX.number + maskOffset;
|
|
_this.ctx.shadowOffsetY = shadow.offsetY.number;
|
|
_this.ctx.shadowColor = color_1.asString(shadow.color);
|
|
_this.ctx.shadowBlur = shadow.blur.number;
|
|
_this.ctx.fillStyle = shadow.inset ? color_1.asString(shadow.color) : 'rgba(0,0,0,1)';
|
|
_this.ctx.fill();
|
|
_this.ctx.restore();
|
|
});
|
|
_a.label = 2;
|
|
case 2:
|
|
side = 0;
|
|
_i = 0, borders_1 = borders;
|
|
_a.label = 3;
|
|
case 3:
|
|
if (!(_i < borders_1.length)) return [3 /*break*/, 13];
|
|
border = borders_1[_i];
|
|
if (!(border.style !== 0 /* NONE */ && !color_1.isTransparent(border.color) && border.width > 0)) return [3 /*break*/, 11];
|
|
if (!(border.style === 2 /* DASHED */)) return [3 /*break*/, 5];
|
|
return [4 /*yield*/, this.renderDashedDottedBorder(border.color, border.width, side, paint.curves, 2 /* DASHED */)];
|
|
case 4:
|
|
_a.sent();
|
|
return [3 /*break*/, 11];
|
|
case 5:
|
|
if (!(border.style === 3 /* DOTTED */)) return [3 /*break*/, 7];
|
|
return [4 /*yield*/, this.renderDashedDottedBorder(border.color, border.width, side, paint.curves, 3 /* DOTTED */)];
|
|
case 6:
|
|
_a.sent();
|
|
return [3 /*break*/, 11];
|
|
case 7:
|
|
if (!(border.style === 4 /* DOUBLE */)) return [3 /*break*/, 9];
|
|
return [4 /*yield*/, this.renderDoubleBorder(border.color, border.width, side, paint.curves)];
|
|
case 8:
|
|
_a.sent();
|
|
return [3 /*break*/, 11];
|
|
case 9: return [4 /*yield*/, this.renderSolidBorder(border.color, side, paint.curves)];
|
|
case 10:
|
|
_a.sent();
|
|
_a.label = 11;
|
|
case 11:
|
|
side++;
|
|
_a.label = 12;
|
|
case 12:
|
|
_i++;
|
|
return [3 /*break*/, 3];
|
|
case 13: return [2 /*return*/];
|
|
}
|
|
});
|
|
});
|
|
};
|
|
CanvasRenderer.prototype.renderDashedDottedBorder = function (color, width, side, curvePoints, style) {
|
|
return __awaiter(this, void 0, void 0, function () {
|
|
var strokePaths, boxPaths, startX, startY, endX, endY, length, dashLength, spaceLength, useLineDash, multiplier, numberOfDashes, minSpace, maxSpace, path1, path2, path1, path2;
|
|
return __generator(this, function (_a) {
|
|
this.ctx.save();
|
|
strokePaths = border_1.parsePathForBorderStroke(curvePoints, side);
|
|
boxPaths = border_1.parsePathForBorder(curvePoints, side);
|
|
if (style === 2 /* DASHED */) {
|
|
this.path(boxPaths);
|
|
this.ctx.clip();
|
|
}
|
|
if (bezier_curve_1.isBezierCurve(boxPaths[0])) {
|
|
startX = boxPaths[0].start.x;
|
|
startY = boxPaths[0].start.y;
|
|
}
|
|
else {
|
|
startX = boxPaths[0].x;
|
|
startY = boxPaths[0].y;
|
|
}
|
|
if (bezier_curve_1.isBezierCurve(boxPaths[1])) {
|
|
endX = boxPaths[1].end.x;
|
|
endY = boxPaths[1].end.y;
|
|
}
|
|
else {
|
|
endX = boxPaths[1].x;
|
|
endY = boxPaths[1].y;
|
|
}
|
|
if (side === 0 || side === 2) {
|
|
length = Math.abs(startX - endX);
|
|
}
|
|
else {
|
|
length = Math.abs(startY - endY);
|
|
}
|
|
this.ctx.beginPath();
|
|
if (style === 3 /* DOTTED */) {
|
|
this.formatPath(strokePaths);
|
|
}
|
|
else {
|
|
this.formatPath(boxPaths.slice(0, 2));
|
|
}
|
|
dashLength = width < 3 ? width * 3 : width * 2;
|
|
spaceLength = width < 3 ? width * 2 : width;
|
|
if (style === 3 /* DOTTED */) {
|
|
dashLength = width;
|
|
spaceLength = width;
|
|
}
|
|
useLineDash = true;
|
|
if (length <= dashLength * 2) {
|
|
useLineDash = false;
|
|
}
|
|
else if (length <= dashLength * 2 + spaceLength) {
|
|
multiplier = length / (2 * dashLength + spaceLength);
|
|
dashLength *= multiplier;
|
|
spaceLength *= multiplier;
|
|
}
|
|
else {
|
|
numberOfDashes = Math.floor((length + spaceLength) / (dashLength + spaceLength));
|
|
minSpace = (length - numberOfDashes * dashLength) / (numberOfDashes - 1);
|
|
maxSpace = (length - (numberOfDashes + 1) * dashLength) / numberOfDashes;
|
|
spaceLength =
|
|
maxSpace <= 0 || Math.abs(spaceLength - minSpace) < Math.abs(spaceLength - maxSpace)
|
|
? minSpace
|
|
: maxSpace;
|
|
}
|
|
if (useLineDash) {
|
|
if (style === 3 /* DOTTED */) {
|
|
this.ctx.setLineDash([0, dashLength + spaceLength]);
|
|
}
|
|
else {
|
|
this.ctx.setLineDash([dashLength, spaceLength]);
|
|
}
|
|
}
|
|
if (style === 3 /* DOTTED */) {
|
|
this.ctx.lineCap = 'round';
|
|
this.ctx.lineWidth = width;
|
|
}
|
|
else {
|
|
this.ctx.lineWidth = width * 2 + 1.1;
|
|
}
|
|
this.ctx.strokeStyle = color_1.asString(color);
|
|
this.ctx.stroke();
|
|
this.ctx.setLineDash([]);
|
|
// dashed round edge gap
|
|
if (style === 2 /* DASHED */) {
|
|
if (bezier_curve_1.isBezierCurve(boxPaths[0])) {
|
|
path1 = boxPaths[3];
|
|
path2 = boxPaths[0];
|
|
this.ctx.beginPath();
|
|
this.formatPath([new vector_1.Vector(path1.end.x, path1.end.y), new vector_1.Vector(path2.start.x, path2.start.y)]);
|
|
this.ctx.stroke();
|
|
}
|
|
if (bezier_curve_1.isBezierCurve(boxPaths[1])) {
|
|
path1 = boxPaths[1];
|
|
path2 = boxPaths[2];
|
|
this.ctx.beginPath();
|
|
this.formatPath([new vector_1.Vector(path1.end.x, path1.end.y), new vector_1.Vector(path2.start.x, path2.start.y)]);
|
|
this.ctx.stroke();
|
|
}
|
|
}
|
|
this.ctx.restore();
|
|
return [2 /*return*/];
|
|
});
|
|
});
|
|
};
|
|
CanvasRenderer.prototype.render = function (element) {
|
|
return __awaiter(this, void 0, void 0, function () {
|
|
var stack;
|
|
return __generator(this, function (_a) {
|
|
switch (_a.label) {
|
|
case 0:
|
|
if (this.options.backgroundColor) {
|
|
this.ctx.fillStyle = color_1.asString(this.options.backgroundColor);
|
|
this.ctx.fillRect(this.options.x, this.options.y, this.options.width, this.options.height);
|
|
}
|
|
stack = stacking_context_1.parseStackingContexts(element);
|
|
return [4 /*yield*/, this.renderStack(stack)];
|
|
case 1:
|
|
_a.sent();
|
|
this.applyEffects([]);
|
|
return [2 /*return*/, this.canvas];
|
|
}
|
|
});
|
|
});
|
|
};
|
|
return CanvasRenderer;
|
|
}(renderer_1.Renderer));
|
|
exports.CanvasRenderer = CanvasRenderer;
|
|
var isTextInputElement = function (container) {
|
|
if (container instanceof textarea_element_container_1.TextareaElementContainer) {
|
|
return true;
|
|
}
|
|
else if (container instanceof select_element_container_1.SelectElementContainer) {
|
|
return true;
|
|
}
|
|
else if (container instanceof input_element_container_1.InputElementContainer && container.type !== input_element_container_1.RADIO && container.type !== input_element_container_1.CHECKBOX) {
|
|
return true;
|
|
}
|
|
return false;
|
|
};
|
|
var calculateBackgroundCurvedPaintingArea = function (clip, curves) {
|
|
switch (clip) {
|
|
case 0 /* BORDER_BOX */:
|
|
return bound_curves_1.calculateBorderBoxPath(curves);
|
|
case 2 /* CONTENT_BOX */:
|
|
return bound_curves_1.calculateContentBoxPath(curves);
|
|
case 1 /* PADDING_BOX */:
|
|
default:
|
|
return bound_curves_1.calculatePaddingBoxPath(curves);
|
|
}
|
|
};
|
|
var canvasTextAlign = function (textAlign) {
|
|
switch (textAlign) {
|
|
case 1 /* CENTER */:
|
|
return 'center';
|
|
case 2 /* RIGHT */:
|
|
return 'right';
|
|
case 0 /* LEFT */:
|
|
default:
|
|
return 'left';
|
|
}
|
|
};
|
|
// see https://github.com/niklasvh/html2canvas/pull/2645
|
|
var iOSBrokenFonts = ['-apple-system', 'system-ui'];
|
|
var fixIOSSystemFonts = function (fontFamilies) {
|
|
return /iPhone OS 15_(0|1)/.test(window.navigator.userAgent)
|
|
? fontFamilies.filter(function (fontFamily) { return iOSBrokenFonts.indexOf(fontFamily) === -1; })
|
|
: fontFamilies;
|
|
};
|
|
//# sourceMappingURL=canvas-renderer.js.map
|