As the sun rises and the forest mist clears, and the clouds return and the caves darken, these changes of light and shadow are the morning and evening in the mountains. Wildflowers bloom with their subtle fragrance, fine trees flourish with their dense shade, the wind and frost are pure and clean, and the water recedes to reveal the rocks—these are the four seasons in the mountains. Going out in the morning and returning in the evening, the scenery of the four seasons is different, and the joy is endless.至于负者歌于途,行者休于树,前者呼,后者应,伛偻提携,往来而不绝者,滁人游也。临溪而渔,溪深而鱼肥,酿泉为酒,泉香而酒洌,山肴野蔌,杂然而前陈者,太守宴也。宴酣之乐,非丝非竹,射者中,弈者胜,觥筹交错,起坐而喧哗者,众宾欢也。苍颜白发,颓然乎其间者,太守醉也。
/**
* Interim login dialog.
*
* @output wp-includes/js/wp-auth-check.js
*/
( function( $ ) {
var wrap,
tempHidden,
tempHiddenTimeout;
/**
* Shows the authentication form popup.
*
* @since 3.6.0
* @private
*/
function show() {
var parent = $( '#wp-auth-check' ),
form = $( '#wp-auth-check-form' ),
noframe = wrap.find( '.wp-auth-fallback-expired' ),
frame, loaded = false;
if ( form.length ) {
// Add unload confirmation to counter (frame-busting) JS redirects.
$( window ).on( 'beforeunload.wp-auth-check', function( event ) {
event.originalEvent.returnValue = window.wp.i18n.__( 'Your session has expired. You can log in again from this page or go to the login page.' );
});
frame = $( '<iframe id="wp-auth-check-frame" frameborder="0">' ).attr( 'title', noframe.text() );
frame.on( 'load', function() {
var height, body;
loaded = true;
// Remove the spinner to avoid unnecessary CPU/GPU usage.
form.removeClass( 'loading' );
try {
body = $( this ).contents().find( 'body' );
height = body.height();
} catch( er ) {
wrap.addClass( 'fallback' );
parent.css( 'max-height', '' );
form.remove();
noframe.focus();
return;
}
if ( height ) {
if ( body && body.hasClass( 'interim-login-success' ) ) {
hide();
} else {
parent.css( 'max-height', height + 40 + 'px' );
}
} else if ( ! body || ! body.length ) {
// Catch "silent" iframe origin exceptions in WebKit
// after another page is loaded in the iframe.
wrap.addClass( 'fallback' );
parent.css( 'max-height', '' );
form.remove();
noframe.focus();
}
}).attr( 'src', form.data( 'src' ) );
form.append( frame );
}
$( 'body' ).addClass( 'modal-open' );
wrap.removeClass( 'hidden' );
if ( frame ) {
frame.focus();
/*
* WebKit doesn't throw an error if the iframe fails to load
* because of "X-Frame-Options: DENY" header.
* Wait for 10 seconds and switch to the fallback text.
*/
setTimeout( function() {
if ( ! loaded ) {
wrap.addClass( 'fallback' );
form.remove();
noframe.focus();
}
}, 10000 );
} else {
noframe.focus();
}
}
/**
* Hides the authentication form popup.
*
* @since 3.6.0
* @private
*/
function hide() {
var adminpage = window.adminpage,
wp = window.wp;
$( window ).off( 'beforeunload.wp-auth-check' );
// When on the Edit Post screen, speed up heartbeat
// after the user logs in to quickly refresh nonces.
if ( ( adminpage === 'post-php' || adminpage === 'post-new-php' ) && wp && wp.heartbeat ) {
wp.heartbeat.connectNow();
}
wrap.fadeOut( 200, function() {
wrap.addClass( 'hidden' ).css( 'display', '' );
$( '#wp-auth-check-frame' ).remove();
$( 'body' ).removeClass( 'modal-open' );
});
}
/**
* Set or reset the tempHidden variable used to pause showing of the modal
* after a user closes it without logging in.
*
* @since 5.5.0
* @private
*/
function setShowTimeout() {
tempHidden = true;
window.clearTimeout( tempHiddenTimeout );
tempHiddenTimeout = window.setTimeout(
function() {
tempHidden = false;
},
300000 // 5 min.
);
}
/**
* Binds to the Heartbeat Tick event.
*
* - Shows the authentication form popup if user is not logged in.
* - Hides the authentication form popup if it is already visible and user is
* logged in.
*
* @ignore
*
* @since 3.6.0
*
* @param {Object} e The heartbeat-tick event that has been triggered.
* @param {Object} data Response data.
*/
$( function() {
/**
* Hides the authentication form popup when the close icon is clicked.
*
* @ignore
*
* @since 3.6.0
*/
wrap = $( '#wp-auth-check-wrap' );
wrap.find( '.wp-auth-check-close' ).on( 'click', function() {
hide();
setShowTimeout();
});
}).on( 'heartbeat-tick.wp-auth-check', function( e, data ) {
if ( 'wp-auth-check' in data ) {
if ( ! data['wp-auth-check'] && wrap.hasClass( 'hidden' ) && ! tempHidden ) {
show();
} else if ( data['wp-auth-check'] && ! wrap.hasClass( 'hidden' ) ) {
hide();
}
}
});
}(jQuery));