PHP WebShell
Текущая директория: /opt/BitGoJS/node_modules/html2canvas/dist/lib/render/canvas
Просмотр файла: canvas-renderer.js
"use strict";
var __extends = (this && this.__extends) || (function () {
var extendStatics = function (d, b) {
extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
return extendStatics(d, b);
};
return function (d, b) {
if (typeof b !== "function" && b !== null)
throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (_) try {
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;
if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.CanvasRenderer = void 0;
var stacking_context_1 = require("../stacking-context");
var color_1 = require("../../css/types/color");
var path_1 = require("../path");
var bound_curves_1 = require("../bound-curves");
var bezier_curve_1 = require("../bezier-curve");
var vector_1 = require("../vector");
var image_1 = require("../../css/types/image");
var border_1 = require("../border");
var background_1 = require("../background");
var parser_1 = require("../../css/syntax/parser");
var text_1 = require("../../css/layout/text");
var image_element_container_1 = require("../../dom/replaced-elements/image-element-container");
var box_sizing_1 = require("../box-sizing");
var canvas_element_container_1 = require("../../dom/replaced-elements/canvas-element-container");
var svg_element_container_1 = require("../../dom/replaced-elements/svg-element-container");
var effects_1 = require("../effects");
var bitwise_1 = require("../../core/bitwise");
var gradient_1 = require("../../css/types/functions/gradient");
var length_percentage_1 = require("../../css/types/length-percentage");
var font_metrics_1 = require("../font-metrics");
var bounds_1 = require("../../css/layout/bounds");
var line_height_1 = require("../../css/property-descriptors/line-height");
var input_element_container_1 = require("../../dom/replaced-elements/input-element-container");
var textarea_element_container_1 = require("../../dom/elements/textarea-element-container");
var select_element_container_1 = require("../../dom/elements/select-element-container");
var iframe_element_container_1 = require("../../dom/replaced-elements/iframe-element-container");
var renderer_1 = require("../renderer");
var MASK_OFFSET = 10000;
var CanvasRenderer = /** @class */ (function (_super) {
__extends(CanvasRenderer, _super);
function CanvasRenderer(context, options) {
var _this = _super.call(this, context, options) || this;
_this._activeEffects = [];
_this.canvas = options.canvas ? options.canvas : document.createElement('canvas');
_this.ctx = _this.canvas.getContext('2d');
if (!options.canvas) {
_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.fontMetrics = new font_metrics_1.FontMetrics(document);
_this.ctx.scale(_this.options.scale, _this.options.scale);
_this.ctx.translate(-options.x, -options.y);
_this.ctx.textBaseline = 'bottom';
_this._activeEffects = [];
_this.context.logger.debug("Canvas renderer initialized (" + options.width + "x" + options.height + ") with scale " + options.scale);
return _this;
}
CanvasRenderer.prototype.applyEffects = function (effects) {
var _this = this;
while (this._activeEffects.length) {
this.popEffect();
}
effects.forEach(function (effect) { return _this.applyEffect(effect); });
};
CanvasRenderer.prototype.applyEffect = function (effect) {
this.ctx.save();
if (effects_1.isOpacityEffect(effect)) {
this.ctx.globalAlpha = effect.opacity;
}
if (effects_1.isTransformEffect(effect)) {
this.ctx.translate(effect.offsetX, effect.offsetY);
this.ctx.transform(effect.matrix[0], effect.matrix[1], effect.matrix[2], effect.matrix[3], effect.matrix[4], effect.matrix[5]);
this.ctx.translate(-effect.offsetX, -effect.offsetY);
}
if (effects_1.isClipEffect(effect)) {
this.path(effect.path);
this.ctx.clip();
}
this._activeEffects.push(effect);
};
CanvasRenderer.prototype.popEffect = function () {
this._activeEffects.pop();
this.ctx.restore();
};
CanvasRenderer.prototype.renderStack = function (stack) {
return __awaiter(this, void 0, void 0, function () {
var styles;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
styles = stack.element.container.styles;
if (!styles.isVisible()) return [3 /*break*/, 2];
return [4 /*yield*/, this.renderStackContent(stack)];
case 1:
_a.sent();
_a.label = 2;
case 2: return [2 /*return*/];
}
});
});
};
CanvasRenderer.prototype.renderNode = function (paint) {
return __awaiter(this, void 0, void 0, function () {
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
if (bitwise_1.contains(paint.container.flags, 16 /* DEBUG_RENDER */)) {
debugger;
}
if (!paint.container.styles.isVisible()) return [3 /*break*/, 3];
return [4 /*yield*/, this.renderNodeBackgroundAndBorders(paint)];
case 1:
_a.sent();
return [4 /*yield*/, this.renderNodeContent(paint)];
case 2:
_a.sent();
_a.label = 3;
case 3: return [2 /*return*/];
}
});
});
};
CanvasRenderer.prototype.renderTextWithLetterSpacing = function (text, letterSpacing, baseline) {
var _this = this;
if (letterSpacing === 0) {
this.ctx.fillText(text.text, text.bounds.left, text.bounds.top + baseline);
}
else {
var letters = text_1.segmentGraphemes(text.text);
letters.reduce(function (left, letter) {
_this.ctx.fillText(letter, left, text.bounds.top + baseline);
return left + _this.ctx.measureText(letter).width;
}, text.bounds.left);
}
};
CanvasRenderer.prototype.createFontStyle = function (styles) {
var fontVariant = styles.fontVariant
.filter(function (variant) { return variant === 'normal' || variant === 'small-caps'; })
.join('');
var fontFamily = fixIOSSystemFonts(styles.fontFamily).join(', ');
var fontSize = parser_1.isDimensionToken(styles.fontSize)
? "" + styles.fontSize.number + styles.fontSize.unit
: styles.fontSize.number + "px";
return [
[styles.fontStyle, fontVariant, styles.fontWeight, fontSize, fontFamily].join(' '),
fontFamily,
fontSize
];
};
CanvasRenderer.prototype.renderTextNode = function (text, styles) {
return __awaiter(this, void 0, void 0, function () {
var _a, font, fontFamily, fontSize, _b, baseline, middle, paintOrder;
var _this = this;
return __generator(this, function (_c) {
_a = this.createFontStyle(styles), font = _a[0], fontFamily = _a[1], fontSize = _a[2];
this.ctx.font = font;
this.ctx.direction = styles.direction === 1 /* RTL */ ? 'rtl' : 'ltr';
this.ctx.textAlign = 'left';
this.ctx.textBaseline = 'alphabetic';
_b = this.fontMetrics.getMetrics(fontFamily, fontSize), baseline = _b.baseline, middle = _b.middle;
paintOrder = styles.paintOrder;
text.textBounds.forEach(function (text) {
paintOrder.forEach(function (paintOrderLayer) {
switch (paintOrderLayer) {
case 0 /* FILL */:
_this.ctx.fillStyle = color_1.asString(styles.color);
_this.renderTextWithLetterSpacing(text, styles.letterSpacing, baseline);
var textShadows = styles.textShadow;
if (textShadows.length && text.text.trim().length) {
textShadows
.slice(0)
.reverse()
.forEach(function (textShadow) {
_this.ctx.shadowColor = color_1.asString(textShadow.color);
_this.ctx.shadowOffsetX = textShadow.offsetX.number * _this.options.scale;
_this.ctx.shadowOffsetY = textShadow.offsetY.number * _this.options.scale;
_this.ctx.shadowBlur = textShadow.blur.number;
_this.renderTextWithLetterSpacing(text, styles.letterSpacing, baseline);
});
_this.ctx.shadowColor = '';
_this.ctx.shadowOffsetX = 0;
_this.ctx.shadowOffsetY = 0;
_this.ctx.shadowBlur = 0;
}
if (styles.textDecorationLine.length) {
_this.ctx.fillStyle = color_1.asString(styles.textDecorationColor || styles.color);
styles.textDecorationLine.forEach(function (textDecorationLine) {
switch (textDecorationLine) {
case 1 /* UNDERLINE */:
// Draws a line at the baseline of the font
// TODO As some browsers display the line as more than 1px if the font-size is big,
// need to take that into account both in position and size
_this.ctx.fillRect(text.bounds.left, Math.round(text.bounds.top + baseline), text.bounds.width, 1);
break;
case 2 /* OVERLINE */:
_this.ctx.fillRect(text.bounds.left, Math.round(text.bounds.top), text.bounds.width, 1);
break;
case 3 /* LINE_THROUGH */:
// TODO try and find exact position for line-through
_this.ctx.fillRect(text.bounds.left, Math.ceil(text.bounds.top + middle), text.bounds.width, 1);
break;
}
});
}
break;
case 1 /* STROKE */:
if (styles.webkitTextStrokeWidth && text.text.trim().length) {
_this.ctx.strokeStyle = color_1.asString(styles.webkitTextStrokeColor);
_this.ctx.lineWidth = styles.webkitTextStrokeWidth;
// eslint-disable-next-line @typescript-eslint/no-explicit-any
_this.ctx.lineJoin = !!window.chrome ? 'miter' : 'round';
_this.ctx.strokeText(text.text, text.bounds.left, text.bounds.top + baseline);
}
_this.ctx.strokeStyle = '';
_this.ctx.lineWidth = 0;
_this.ctx.lineJoin = 'miter';
break;
}
});
});
return [2 /*return*/];
});
});
};
CanvasRenderer.prototype.renderReplacedElement = function (container, curves, image) {
if (image && container.intrinsicWidth > 0 && container.intrinsicHeight > 0) {
var box = box_sizing_1.contentBox(container);
var path = bound_curves_1.calculatePaddingBoxPath(curves);
this.path(path);
this.ctx.save();
this.ctx.clip();
this.ctx.drawImage(image, 0, 0, container.intrinsicWidth, container.intrinsicHeight, box.left, box.top, box.width, box.height);
this.ctx.restore();
}
};
CanvasRenderer.prototype.renderNodeContent = function (paint) {
return __awaiter(this, void 0, void 0, function () {
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;
return __generator(this, function (_c) {
switch (_c.label) {
case 0:
this.applyEffects(paint.getEffects(4 /* CONTENT */));
container = paint.container;
curves = paint.curves;
styles = container.styles;
_i = 0, _a = container.textNodes;
_c.label = 1;
case 1:
if (!(_i < _a.length)) return [3 /*break*/, 4];
child = _a[_i];
return [4 /*yield*/, this.renderTextNode(child, styles)];
case 2:
_c.sent();
_c.label = 3;
case 3:
_i++;
return [3 /*break*/, 1];
case 4:
if (!(container instanceof image_element_container_1.ImageElementContainer)) return [3 /*break*/, 8];
_c.label = 5;
case 5:
_c.trys.push([5, 7, , 8]);
return [4 /*yield*/, this.context.cache.match(container.src)];
case 6:
image = _c.sent();
this.renderReplacedElement(container, curves, image);
return [3 /*break*/, 8];
case 7:
e_1 = _c.sent();
this.context.logger.error("Error loading image " + container.src);
return [3 /*break*/, 8];
case 8:
if (container instanceof canvas_element_container_1.CanvasElementContainer) {
this.renderReplacedElement(container, curves, container.canvas);
}
if (!(container instanceof svg_element_container_1.SVGElementContainer)) return [3 /*break*/, 12];
_c.label = 9;
case 9:
_c.trys.push([9, 11, , 12]);
return [4 /*yield*/, this.context.cache.match(container.svg)];
case 10:
image = _c.sent();
this.renderReplacedElement(container, curves, image);
return [3 /*break*/, 12];
case 11:
e_2 = _c.sent();
this.context.logger.error("Error loading svg " + container.svg.substring(0, 255));
return [3 /*break*/, 12];
case 12:
if (!(container instanceof iframe_element_container_1.IFrameElementContainer && container.tree)) return [3 /*break*/, 14];
iframeRenderer = new CanvasRenderer(this.context, {
scale: this.options.scale,
backgroundColor: container.backgroundColor,
x: 0,
y: 0,
width: container.width,
height: container.height
});
return [4 /*yield*/, iframeRenderer.render(container.tree)];
case 13:
canvas = _c.sent();
if (container.width && container.height) {
this.ctx.drawImage(canvas, 0, 0, container.width, container.height, container.bounds.left, container.bounds.top, container.bounds.width, container.bounds.height);
}
_c.label = 14;
case 14:
if (container instanceof input_element_container_1.InputElementContainer) {
size = Math.min(container.bounds.width, container.bounds.height);
if (container.type === input_element_container_1.CHECKBOX) {
if (container.checked) {
this.ctx.save();
this.path([
new vector_1.Vector(container.bounds.left + size * 0.39363, container.bounds.top + size * 0.79),
new vector_1.Vector(container.bounds.left + size * 0.16, container.bounds.top + size * 0.5549),
new vector_1.Vector(container.bounds.left + size * 0.27347, container.bounds.top + size * 0.44071),
new vector_1.Vector(container.bounds.left + size * 0.39694, container.bounds.top + size * 0.5649),
new vector_1.Vector(container.bounds.left + size * 0.72983, container.bounds.top + size * 0.23),
new vector_1.Vector(container.bounds.left + size * 0.84, container.bounds.top + size * 0.34085),
new vector_1.Vector(container.bounds.left + size * 0.39363, container.bounds.top + size * 0.79)
]);
this.ctx.fillStyle = color_1.asString(input_element_container_1.INPUT_COLOR);
this.ctx.fill();
this.ctx.restore();
}
}
else if (container.type === input_element_container_1.RADIO) {
if (container.checked) {
this.ctx.save();
this.ctx.beginPath();
this.ctx.arc(container.bounds.left + size / 2, container.bounds.top + size / 2, size / 4, 0, Math.PI * 2, true);
this.ctx.fillStyle = color_1.asString(input_element_container_1.INPUT_COLOR);
this.ctx.fill();
this.ctx.restore();
}
}
}
if (isTextInputElement(container) && container.value.length) {
_b = this.createFontStyle(styles), fontFamily = _b[0], fontSize = _b[1];
baseline = this.fontMetrics.getMetrics(fontFamily, fontSize).baseline;
this.ctx.font = fontFamily;
this.ctx.fillStyle = color_1.asString(styles.color);
this.ctx.textBaseline = 'alphabetic';
this.ctx.textAlign = canvasTextAlign(container.styles.textAlign);
bounds = box_sizing_1.contentBox(container);
x = 0;
switch (container.styles.textAlign) {
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.mapВыполнить команду
Для локальной разработки. Не используйте в интернете!