happy-dom
Version:
Happy DOM is a JavaScript implementation of a web browser without its graphical user interface. It includes many web standards from WHATWG DOM and HTML.
99 lines • 3.07 kB
JavaScript
;
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const VirtualConsoleLogLevelEnum_js_1 = __importDefault(require("./enums/VirtualConsoleLogLevelEnum.cjs"));
const Event_js_1 = __importDefault(require("../event/Event.cjs"));
const VirtualConsoleLogEntryStringifier_js_1 = __importDefault(require("./utilities/VirtualConsoleLogEntryStringifier.cjs"));
/**
* Virtual console printer.
*/
class VirtualConsolePrinter {
#logEntries = [];
#listeners = { print: [], clear: [] };
/**
* Writes to the output.
*
* @param logEntry Log entry.
*/
print(logEntry) {
this.#logEntries.push(logEntry);
this.dispatchEvent(new Event_js_1.default('print'));
}
/**
* Clears the output.
*/
clear() {
this.#logEntries = [];
this.dispatchEvent(new Event_js_1.default('clear'));
}
/**
* Adds an event listener.
*
* @param eventType Event type ("print" or "clear").
* @param listener Listener.
*/
addEventListener(eventType, listener) {
if (!this.#listeners[eventType]) {
throw new Error(`Event type "${eventType}" is not supported.`);
}
this.#listeners[eventType].push(listener);
}
/**
* Removes an event listener.
*
* @param eventType Event type ("print" or "clear").
* @param listener Listener.
*/
removeEventListener(eventType, listener) {
if (!this.#listeners[eventType]) {
throw new Error(`Event type "${eventType}" is not supported.`);
}
const index = this.#listeners[eventType].indexOf(listener);
if (index !== -1) {
this.#listeners[eventType].splice(index, 1);
}
}
/**
* Dispatches an event.
*
* @param event Event.
*/
dispatchEvent(event) {
if (!this.#listeners[event.type]) {
throw new Error(`Event type "${event.type}" is not supported.`);
}
for (const listener of this.#listeners[event.type]) {
listener(event);
}
}
/**
* Reads the buffer.
*
* @returns Console log entries.
*/
read() {
const logEntries = this.#logEntries;
this.#logEntries = [];
return logEntries;
}
/**
* Returns the buffer as a string.
*
* @param [logLevel] Log level.
* @returns Buffer as a string of concatenated log entries.
*/
readAsString(logLevel = VirtualConsoleLogLevelEnum_js_1.default.log) {
const logEntries = this.read();
let output = '';
for (const logEntry of logEntries) {
if (logEntry.level >= logLevel) {
output += VirtualConsoleLogEntryStringifier_js_1.default.toString(logEntry);
}
}
return output;
}
}
exports.default = VirtualConsolePrinter;
//# sourceMappingURL=VirtualConsolePrinter.cjs.map