70 lines
2.6 KiB
JavaScript
70 lines
2.6 KiB
JavaScript
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import BrowserErrorCaptureEnum from '../../browser/enums/BrowserErrorCaptureEnum.js';
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import WindowBrowserContext from '../../window/WindowBrowserContext.js';
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import * as PropertySymbol from '../../PropertySymbol.js';
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/**
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* ECMAScript module compiler.
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*/
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export default class ElementEventAttributeUtility {
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/**
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* Evaluates code in attribute and returns event listener.
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*
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* @param element
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* @param property Property.
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* @returns Result.
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*/
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static getEventListener(element, property) {
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const cached = element[PropertySymbol.propertyEventListeners].get(property);
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if (cached) {
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return cached;
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}
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const window = element[PropertySymbol.ownerDocument][PropertySymbol.defaultView];
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if (!window) {
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return null;
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}
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const browserSettings = new WindowBrowserContext(window).getSettings();
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if (!browserSettings || !browserSettings.enableJavaScriptEvaluation) {
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return null;
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}
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const code = element.getAttribute(property);
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if (!code) {
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return null;
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}
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let newCode = `(function anonymous($happy_dom, event) {`;
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if (browserSettings &&
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!browserSettings.disableErrorCapturing &&
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browserSettings.errorCapture === BrowserErrorCaptureEnum.tryAndCatch) {
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newCode += 'try {\n';
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}
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newCode += code;
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if (browserSettings &&
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!browserSettings.disableErrorCapturing &&
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browserSettings.errorCapture === BrowserErrorCaptureEnum.tryAndCatch) {
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newCode += '} catch(e) { $happy_dom.dispatchError(e); }';
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}
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newCode += '})';
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let listener = null;
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try {
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listener = window[PropertySymbol.evaluateScript](newCode, {
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filename: window.location.href
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}).bind(element, {
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dispatchError: window[PropertySymbol.dispatchError].bind(window)
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});
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}
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catch (e) {
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const error = new window.SyntaxError(`Failed to read the '${property}' property from '${element.constructor.name}': ${e.message}`);
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if (browserSettings.disableErrorCapturing ||
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browserSettings.errorCapture !== BrowserErrorCaptureEnum.tryAndCatch) {
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throw error;
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}
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else {
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window[PropertySymbol.dispatchError](error);
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return null;
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}
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}
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if (listener) {
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element[PropertySymbol.propertyEventListeners].set(property, listener);
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}
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return listener;
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}
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}
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//# sourceMappingURL=ElementEventAttributeUtility.js.map
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