Question

我正在按照Codrops recent tutorial对全屏叠加效果进行编码。但是，由于我不使用jQuery脚本所做的Modernizr-plugin，我尝试将其从代码中删除。它有效，但只有一次。当我关闭覆盖图时，按钮不再起作用，直到我刷新页面。

您可以在我的客户网站上看到该示例，该网站目前正处于开发阶段 - http://www.sk-inspection.com。单击导航点“Kontakt”以查看其实际效果。

我有jQuery：

(function() {
var triggerBttn = document.getElementById( 'trigger-overlay' ),
    overlay = document.querySelector( 'div.overlay' ),
    closeBttn = overlay.querySelector( 'button.overlay-close' );
    transEndEventNames = {
        'WebkitTransition': 'webkitTransitionEnd',
        'MozTransition': 'transitionend',
        'OTransition': 'oTransitionEnd',
        'msTransition': 'MSTransitionEnd',
        'transition': 'transitionend'
    }

function toggleOverlay() {
    if( classie.has( overlay, 'open' ) ) {
        classie.remove( overlay, 'open' );
        classie.add( overlay, 'close' );
        var onEndTransitionFn = function( ev ) {
            classie.remove( overlay, 'close' );
        };
    }
    else if( !classie.has( overlay, 'close' ) ) {
        classie.add( overlay, 'open' );
    }
}

triggerBttn.addEventListener( 'click', toggleOverlay );
closeBttn.addEventListener( 'click', toggleOverlay );
})();

来自Codrops的原始jQuery教程：

(function() {
var triggerBttn = document.getElementById( 'trigger-overlay' ),
    overlay = document.querySelector( 'div.overlay' ),
    closeBttn = overlay.querySelector( 'button.overlay-close' );
    transEndEventNames = {
        'WebkitTransition': 'webkitTransitionEnd',
        'MozTransition': 'transitionend',
        'OTransition': 'oTransitionEnd',
        'msTransition': 'MSTransitionEnd',
        'transition': 'transitionend'
    },
    transEndEventName = transEndEventNames[ Modernizr.prefixed( 'transition' ) ],
    support = { transitions : Modernizr.csstransitions };

function toggleOverlay() {
    if( classie.has( overlay, 'open' ) ) {
        classie.remove( overlay, 'open' );
        classie.add( overlay, 'close' );
        var onEndTransitionFn = function( ev ) {
            if( support.transitions ) {
                if( ev.propertyName !== 'visibility' ) return;
                this.removeEventListener( transEndEventName, onEndTransitionFn );
            }
            classie.remove( overlay, 'close' );
        };
        if( support.transitions ) {
            overlay.addEventListener( transEndEventName, onEndTransitionFn );
        }
        else {
            onEndTransitionFn();
        }
    }
    else if( !classie.has( overlay, 'close' ) ) {
        classie.add( overlay, 'open' );
    }
}

triggerBttn.addEventListener( 'click', toggleOverlay );
closeBttn.addEventListener( 'click', toggleOverlay );
})();

最后是Classie.js，它是一个类助手函数。

    /*!
 * classie - class helper functions
 * from bonzo https://github.com/ded/bonzo
 * 
 * classie.has( elem, 'my-class' ) -> true/false
 * classie.add( elem, 'my-new-class' )
 * classie.remove( elem, 'my-unwanted-class' )
 * classie.toggle( elem, 'my-class' )
 */

/*jshint browser: true, strict: true, undef: true */
/*global define: false */

( function( window ) {

'use strict';

// class helper functions from bonzo https://github.com/ded/bonzo

function classReg( className ) {
  return new RegExp("(^|\\s+)" + className + "(\\s+|$)");
}

// classList support for class management
// altho to be fair, the api sucks because it won't accept multiple classes at once
var hasClass, addClass, removeClass;

if ( 'classList' in document.documentElement ) {
  hasClass = function( elem, c ) {
    return elem.classList.contains( c );
  };
  addClass = function( elem, c ) {
    elem.classList.add( c );
  };
  removeClass = function( elem, c ) {
    elem.classList.remove( c );
  };
}
else {
  hasClass = function( elem, c ) {
    return classReg( c ).test( elem.className );
  };
  addClass = function( elem, c ) {
    if ( !hasClass( elem, c ) ) {
      elem.className = elem.className + ' ' + c;
    }
  };
  removeClass = function( elem, c ) {
    elem.className = elem.className.replace( classReg( c ), ' ' );
  };
}

function toggleClass( elem, c ) {
  var fn = hasClass( elem, c ) ? removeClass : addClass;
  fn( elem, c );
}

var classie = {
  // full names
  hasClass: hasClass,
  addClass: addClass,
  removeClass: removeClass,
  toggleClass: toggleClass,
  // short names
  has: hasClass,
  add: addClass,
  remove: removeClass,
  toggle: toggleClass
};

// transport
if ( typeof define === 'function' && define.amd ) {
  // AMD
  define( classie );
} else {
  // browser global
  window.classie = classie;
}

})( window );

Answer 1

我包括了像Codrops提供的原始示例中使用的Modernizer。

jQuery全屏叠加效果只能使用一次

1 个答案: