@qn-pandora/pandora-visualization
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Pandora 通用可视化库
144 lines (143 loc) • 7.5 kB
JavaScript
;
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
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; }
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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.transformDomToPDF = exports.transformDomToCanvas = void 0;
// @ts-ignore
var domtoimage = __importStar(require("../../forked-third-part/dom-to-image"));
var language_1 = require("../../services/language");
var type_1 = require("../../constants/language/dashboard/type");
function transformDomToCanvas(dom, scale) {
if (scale === void 0) { scale = 1; }
return __awaiter(this, void 0, void 0, function () {
var option, dataUrl, image, canvas;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
if (!dom) {
return [2 /*return*/, Promise.reject(language_1.formatString(type_1.DashboardLocale.export.node_error))];
}
option = {
filter: function (node) {
// 过滤页面上的 popover && 全屏浮动操作栏
if (node && node.classList) {
var classList = node.classList;
return !(classList.contains('ant-popover') ||
classList.contains('pandora-antd-popover'));
}
return true;
},
style: { overflow: 'visible', height: 'auto' }
};
return [4 /*yield*/, domtoimage.toPng(dom, option)];
case 1:
dataUrl = _a.sent();
return [4 /*yield*/, new Promise(function (resolve, reject) {
var image = new Image();
image.onload = function () {
resolve(image);
};
image.onerror = reject;
image.src = dataUrl;
})];
case 2:
image = _a.sent();
canvas = document.createElement('canvas');
canvas.width = image.width * scale;
canvas.height = image.height * scale;
canvas.getContext('2d').drawImage(image, 0, 0, canvas.width, canvas.height);
return [2 /*return*/, canvas];
}
});
});
}
exports.transformDomToCanvas = transformDomToCanvas;
function transformDomToPDF(dom, scale) {
if (scale === void 0) { scale = 1; }
return __awaiter(this, void 0, void 0, function () {
var canvas, jsPDF, pdf, pageWidth, pageHeight, imgWidth, imgHeight, position, remainingHeight, pageData;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, transformDomToCanvas(dom, scale)];
case 1:
canvas = _a.sent();
return [4 /*yield*/, Promise.resolve().then(function () { return __importStar(require('jspdf')); })];
case 2:
jsPDF = (_a.sent()).jsPDF;
pdf = new jsPDF('p', 'pt', 'a4');
pageWidth = 595.28 // A4 page width in points
;
pageHeight = 841.89 // A4 page height in points
;
imgWidth = pageWidth;
imgHeight = (canvas.height * pageWidth) / canvas.width;
position = 0;
remainingHeight = imgHeight;
pageData = canvas.toDataURL('image/png', 1.0);
while (remainingHeight > 0) {
pdf.addImage(pageData, 'PNG', 0, position, imgWidth, imgHeight);
remainingHeight -= pageHeight;
position -= pageHeight;
if (remainingHeight > 0) {
pdf.addPage();
}
}
return [2 /*return*/, pdf];
}
});
});
}
exports.transformDomToPDF = transformDomToPDF;