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名称	大小	权限	修改时间
..	-	-	-
admin	[目录]	drwxr-xr-x	2026-06-03 04:18
lazyload	[目录]	drwxr-xr-x	2024-11-15 11:42
browser-checker.js	2.52 KB	-rw-r--r--	2024-11-15 11:42
browser-checker.min.js	2.10 KB	-rw-r--r--	2024-11-15 11:42
cpcss-removal.js	784.00 B	-rw-r--r--	2024-11-15 11:42
cpcss-removal.min.js	667.00 B	-rw-r--r--	2024-11-15 11:42
elementor-animation.js	1.64 KB	-rw-r--r--	2024-11-15 11:42
heartbeat.js	0.00 B	-rw-r--r--	2024-11-15 11:42
lazyload-scripts.min.js	9.72 KB	-rw-r--r--	2024-11-15 11:42
micromodal.min.js	6.94 KB	-rw-r--r--	2024-11-15 11:42
preload-links.js	5.70 KB	-rw-r--r--	2024-11-15 11:42
preload-links.min.js	3.32 KB	-rw-r--r--	2024-11-15 11:42
wpr-admin-common.js	1.60 KB	-rw-r--r--	2024-11-15 11:42
wpr-admin.js	565.95 KB	-rw-r--r--	2024-11-15 11:42
wpr-admin.js.map	571.18 KB	-rw-r--r--	2024-11-15 11:42
wpr-admin.js.min.map	93.88 KB	-rw-r--r--	2024-11-15 11:42
wpr-admin.min.js	91.26 KB	-rw-r--r--	2024-11-15 11:42
wpr-cpcss-heartbeat.js	869.00 B	-rw-r--r--	2024-11-15 11:42
wpr-cpcss.js	5.01 KB	-rw-r--r--	2024-11-15 11:42

代码编辑器 :browser-checker.js

class RocketBrowserCompatibilityChecker {

constructor( options ) {
		this.passiveSupported = false;

this._checkPassiveOption( this );
		this.options = this.passiveSupported ? options : false;
	}

/**
	 * Initializes browser check for addEventListener passive option.
	 *
	 * @link https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener#Safely_detecting_option_support
	 * @private
	 *
	 * @param self Instance of this object.
	 * @returns {boolean}
	 */
	_checkPassiveOption( self ) {
		try {
			const options = {
				// This function will be called when the browser attempts to access the passive property.
				get passive() {
					self.passiveSupported = true;
					return false;
				}
			};

window.addEventListener( 'test', null, options );
			window.removeEventListener( 'test', null, options );
		} catch ( err ) {
			self.passiveSupported = false;
		}
	}

/**
	 * Checks if the browser supports requestIdleCallback and cancelIdleCallback. If no, shims its behavior with a polyfills.
	 *
	 * @link @link https://developers.google.com/web/updates/2015/08/using-requestidlecallback
	 */
	initRequestIdleCallback() {
		if ( ! 'requestIdleCallback' in window ) {
			window.requestIdleCallback = ( cb ) => {
				const start = Date.now();
				return setTimeout( () => {
					cb( {
						didTimeout: false,
						timeRemaining: function timeRemaining() {
							return Math.max( 0, 50 - ( Date.now() - start ) );
						}
					} );
				}, 1 );
			};
		}

if ( ! 'cancelIdleCallback' in window ) {
			window.cancelIdleCallback = ( id ) => clearTimeout( id );
		}
	}

/**
	 * Detects if data saver mode is on.
	 *
	 * @link https://developers.google.com/web/fundamentals/performance/optimizing-content-efficiency/save-data/#detecting_the_save-data_setting
	 *
	 * @returns {boolean|boolean}
	 */
	isDataSaverModeOn() {
		return (
			'connection' in navigator
			&&
			true === navigator.connection.saveData
		);
	}

/**
	 * Checks if the browser supports link prefetch.
	 *
	 * @returns {boolean|boolean}
	 */
	supportsLinkPrefetch() {
		const elem = document.createElement( 'link' );
		return (
			elem.relList
			&&
			elem.relList.supports
			&&
			elem.relList.supports( 'prefetch' )
			&&
			window.IntersectionObserver
			&&
			'isIntersecting' in IntersectionObserverEntry.prototype
		);
	}

isSlowConnection() {
		return (
			'connection' in navigator
			&&
			'effectiveType' in navigator.connection
			&&
			(
				'2g' === navigator.connection.effectiveType
				||
				'slow-2g' === navigator.connection.effectiveType
			)
		)
	}
}