Method generateDataUri

lib/asset/AssetGenerator.js:498–552

* Generates data uri. * @param {NormalModule} module module for which the code should be generated * @returns {string} DataURI

(module)

	 * @returns {string} DataURI
	 */
	generateDataUri(module) {
		const source = /** @type {Source} */ (module.originalSource());

		/** @type {string} */
		let encodedSource;

		if (typeof this.dataUrlOptions === "function") {
			encodedSource = this.dataUrlOptions.call(null, source.source(), {
				filename: /** @type {string} */ (module.getResource()),
				module
			});
		} else {
			let encoding =
				/** @type {AssetGeneratorDataUrlOptions} */
				(this.dataUrlOptions).encoding;
			if (
				encoding === undefined &&
				module.resourceResolveData &&
				module.resourceResolveData.encoding !== undefined
			) {
				encoding = module.resourceResolveData.encoding;
			}
			if (encoding === undefined) {
				encoding = DEFAULT_ENCODING;
			}
			const mimeType = this.getMimeType(module);

			/** @type {string} */
			let encodedContent;

			if (
				module.resourceResolveData &&
				module.resourceResolveData.encoding === encoding &&
				decodeDataUriContent(
					module.resourceResolveData.encoding,
					/** @type {string} */ (module.resourceResolveData.encodedContent)
				).equals(source.buffer())
			) {
				encodedContent =
					/** @type {string} */
					(module.resourceResolveData.encodedContent);
			} else {
				encodedContent = encodeDataUri(
					/** @type {"base64" | false} */ (encoding),
					source
				);
			}

			encodedSource = `data:${mimeType}${
				encoding ? `;${encoding}` : ""
			},${encodedContent}`;
		}

		return encodedSource;
	}

	/**
	 * Generates generated code for this runtime module.