askui
Version:
Reliable, automated end-to-end-testing that depends on what is shown on your screen instead of the technology you are running on
101 lines (100 loc) • 4.07 kB
JavaScript
;
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 __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.Base64Image = void 0;
const fs_1 = __importDefault(require("fs"));
const sharp_1 = require("./sharp");
const base_64_image_string_error_1 = require("./base-64-image-string-error");
class Base64Image {
constructor(buffer) {
this.buffer = buffer;
}
static fromPathOrString(pathOrStr) {
return __awaiter(this, void 0, void 0, function* () {
if (pathOrStr.startsWith(Base64Image.strPrefix)) {
return Base64Image.fromString(pathOrStr);
}
return Base64Image.fromPath(pathOrStr);
});
}
static fromPath(filePath) {
return __awaiter(this, void 0, void 0, function* () {
const data = yield fs_1.default.promises.readFile(filePath, 'base64');
return Base64Image.fromString(`${Base64Image.strPrefix}${data}`);
});
}
static fromString(str) {
return __awaiter(this, void 0, void 0, function* () {
if (!str.startsWith(Base64Image.strPrefix)) {
throw new base_64_image_string_error_1.Base64ImageStringError(str, Base64Image.strPrefix);
}
const data = str.substring(Base64Image.strPrefix.length);
return new Base64Image(Buffer.from(data, 'base64'));
});
}
static fromBuffer(buffer) {
return __awaiter(this, void 0, void 0, function* () {
return new Base64Image(buffer);
});
}
getSharp() {
return __awaiter(this, void 0, void 0, function* () {
if (this._sharp === undefined) {
const createSharp = yield (0, sharp_1.getSharpFactory)();
this._sharp = createSharp(this.buffer);
}
return this._sharp;
});
}
getInfo() {
return __awaiter(this, void 0, void 0, function* () {
return (yield this.getSharp())
.toBuffer({ resolveWithObject: true })
.then(({ info }) => info);
});
}
resizeToFitInto(dimension) {
return __awaiter(this, void 0, void 0, function* () {
const { width, height } = yield this.getInfo();
const buffer = yield (yield this.getSharp())
.resize({
fit: 'contain',
height: height > width ? dimension : undefined,
width: width >= height ? dimension : undefined,
})
.toBuffer();
return Base64Image.fromBuffer(buffer);
});
}
resizeWithSameAspectRatio(width, height) {
return __awaiter(this, void 0, void 0, function* () {
const buffer = yield (yield this.getSharp())
.resize({
fit: 'contain',
height,
width,
})
.toBuffer();
return Base64Image.fromBuffer(buffer);
});
}
toString(withPrefix = true) {
if (withPrefix) {
return `${Base64Image.strPrefix}${this.buffer.toString('base64')}`;
}
return this.buffer.toString('base64');
}
}
exports.Base64Image = Base64Image;
Base64Image.strPrefix = 'data:image/png;base64,';