happy-dom
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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.
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JavaScript
"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (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 () {
var ownKeys = function(o) {
ownKeys = Object.getOwnPropertyNames || function (o) {
var ar = [];
for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
return ar;
};
return ownKeys(o);
};
return function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
__setModuleDefault(result, mod);
return result;
};
})();
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const EventTarget_js_1 = __importDefault(require("../event/EventTarget.cjs"));
const PropertySymbol = __importStar(require("../PropertySymbol.cjs"));
const MediaQueryListEvent_js_1 = __importDefault(require("../event/events/MediaQueryListEvent.cjs"));
const MediaQueryParser_js_1 = __importDefault(require("./MediaQueryParser.cjs"));
/**
* Media Query List.
*
* Reference:
* https://developer.mozilla.org/en-US/docs/Web/API/MediaQueryList.
*/
class MediaQueryList extends EventTarget_js_1.default {
onchange = null;
#window;
#items = null;
#media;
#rootFontSize = null;
/**
* Constructor.
*
* @param options Options.
* @param options.window Owner window.
* @param options.media Media.
* @param [options.rootFontSize] Root font size.
*/
constructor(options) {
super();
this.#window = options.window;
this.#media = options.media;
this.#rootFontSize = options.rootFontSize || null;
}
/**
* Returns media.
*
* @returns Media.
*/
get media() {
this.#items =
this.#items ||
MediaQueryParser_js_1.default.parse({
window: this.#window,
mediaQuery: this.#media,
rootFontSize: this.#rootFontSize
});
return this.#items.map((item) => item.toString()).join(', ');
}
/**
* Returns "true" if the document matches.
*
* @returns Matches.
*/
get matches() {
this.#items =
this.#items ||
MediaQueryParser_js_1.default.parse({
window: this.#window,
mediaQuery: this.#media,
rootFontSize: this.#rootFontSize
});
for (const item of this.#items) {
if (!item.matches()) {
return false;
}
}
return true;
}
/**
* Adds a listener.
*
* @deprecated
* @param callback Callback.
*/
addListener(callback) {
this.addEventListener('change', callback);
}
/**
* Removes listener.
*
* @deprecated
* @param callback Callback.
*/
removeListener(callback) {
this.removeEventListener('change', callback);
}
/**
* @override
*/
addEventListener(type, listener) {
super.addEventListener(type, listener);
if (type === 'change') {
let matchesState = false;
const resizeListener = () => {
const matches = this.matches;
if (matches !== matchesState) {
matchesState = matches;
this.dispatchEvent(new MediaQueryListEvent_js_1.default('change', { matches, media: this.media }));
}
};
listener[PropertySymbol.windowResizeListener] = resizeListener;
this.#window.addEventListener('resize', resizeListener);
}
}
/**
* @override
*/
removeEventListener(type, listener) {
super.removeEventListener(type, listener);
if (type === 'change' && listener[PropertySymbol.windowResizeListener]) {
this.#window.removeEventListener('resize', listener[PropertySymbol.windowResizeListener]);
}
}
}
exports.default = MediaQueryList;
//# sourceMappingURL=MediaQueryList.cjs.map