javascript - 如何避免折叠菜单栏和覆盖网站中的轮播?
问题描述
首先,我很抱歉占用您的时间。我在我的第一个站点中使用了专辑封面滑块和 superfish,它们崩溃了。我可以完美地使用滑块,但我不能使用我的菜单。当我将光标移到那里时,子菜单和所有内容都会显示。我想学习如何避免 js 项目中的点击崩溃,一点解释都会对我有很大帮助。
这是JS的。
用于菜单
* jQuery Superfish Menu Plugin - v1.7.9
* Copyright (c) 2016 Joel Birch
*
* Dual licensed under the MIT and GPL licenses:
* http://www.opensource.org/licenses/mit-license.php
* http://www.gnu.org/licenses/gpl.html
*/
;(function ($, w) {
"use strict";
var methods = (function () {
// private properties and methods go here
var c = {
bcClass: 'sf-breadcrumb',
menuClass: 'sf-js-enabled',
anchorClass: 'sf-with-ul',
menuArrowClass: 'sf-arrows'
},
ios = (function () {
var ios = /^(?![\w\W]*Windows Phone)[\w\W]*(iPhone|iPad|iPod)/i.test(navigator.userAgent);
if (ios) {
// tap anywhere on iOS to unfocus a submenu
$('html').css('cursor', 'pointer').on('click', $.noop);
}
return ios;
})(),
wp7 = (function () {
var style = document.documentElement.style;
return ('behavior' in style && 'fill' in style && /iemobile/i.test(navigator.userAgent));
})(),
unprefixedPointerEvents = (function () {
return (!!w.PointerEvent);
})(),
toggleMenuClasses = function ($menu, o, add) {
var classes = c.menuClass,
method;
if (o.cssArrows) {
classes += ' ' + c.menuArrowClass;
}
method = (add) ? 'addClass' : 'removeClass';
$menu[method](classes);
},
setPathToCurrent = function ($menu, o) {
return $menu.find('li.' + o.pathClass).slice(0, o.pathLevels)
.addClass(o.hoverClass + ' ' + c.bcClass)
.filter(function () {
return ($(this).children(o.popUpSelector).hide().show().length);
}).removeClass(o.pathClass);
},
toggleAnchorClass = function ($li, add) {
var method = (add) ? 'addClass' : 'removeClass';
$li.children('a')[method](c.anchorClass);
},
toggleTouchAction = function ($menu) {
var msTouchAction = $menu.css('ms-touch-action');
var touchAction = $menu.css('touch-action');
touchAction = touchAction || msTouchAction;
touchAction = (touchAction === 'pan-y') ? 'auto' : 'pan-y';
$menu.css({
'ms-touch-action': touchAction,
'touch-action': touchAction
});
},
getMenu = function ($el) {
return $el.closest('.' + c.menuClass);
},
getOptions = function ($el) {
return getMenu($el).data('sfOptions');
},
over = function () {
var $this = $(this),
o = getOptions($this);
clearTimeout(o.sfTimer);
$this.siblings().superfish('hide').end().superfish('show');
},
close = function (o) {
o.retainPath = ($.inArray(this[0], o.$path) > -1);
this.superfish('hide');
if (!this.parents('.' + o.hoverClass).length) {
o.onIdle.call(getMenu(this));
if (o.$path.length) {
$.proxy(over, o.$path)();
}
}
},
out = function () {
var $this = $(this),
o = getOptions($this);
if (ios) {
$.proxy(close, $this, o)();
}
else {
clearTimeout(o.sfTimer);
o.sfTimer = setTimeout($.proxy(close, $this, o), o.delay);
}
},
touchHandler = function (e) {
var $this = $(this),
o = getOptions($this),
$ul = $this.siblings(e.data.popUpSelector);
if (o.onHandleTouch.call($ul) === false) {
return this;
}
if ($ul.length > 0 && $ul.is(':hidden')) {
$this.one('click.superfish', false);
if (e.type === 'MSPointerDown' || e.type === 'pointerdown') {
$this.trigger('focus');
} else {
$.proxy(over, $this.parent('li'))();
}
}
},
applyHandlers = function ($menu, o) {
var targets = 'li:has(' + o.popUpSelector + ')';
if ($.fn.hoverIntent && !o.disableHI) {
$menu.hoverIntent(over, out, targets);
}
else {
$menu
.on('mouseenter.superfish', targets, over)
.on('mouseleave.superfish', targets, out);
}
var touchevent = 'MSPointerDown.superfish';
if (unprefixedPointerEvents) {
touchevent = 'pointerdown.superfish';
}
if (!ios) {
touchevent += ' touchend.superfish';
}
if (wp7) {
touchevent += ' mousedown.superfish';
}
$menu
.on('focusin.superfish', 'li', over)
.on('focusout.superfish', 'li', out)
.on(touchevent, 'a', o, touchHandler);
};
return {
// public methods
hide: function (instant) {
if (this.length) {
var $this = this,
o = getOptions($this);
if (!o) {
return this;
}
var not = (o.retainPath === true) ? o.$path : '',
$ul = $this.find('li.' + o.hoverClass).add(this).not(not).removeClass(o.hoverClass).children(o.popUpSelector),
speed = o.speedOut;
if (instant) {
$ul.show();
speed = 0;
}
o.retainPath = false;
if (o.onBeforeHide.call($ul) === false) {
return this;
}
$ul.stop(true, true).animate(o.animationOut, speed, function () {
var $this = $(this);
o.onHide.call($this);
});
}
return this;
},
show: function () {
var o = getOptions(this);
if (!o) {
return this;
}
var $this = this.addClass(o.hoverClass),
$ul = $this.children(o.popUpSelector);
if (o.onBeforeShow.call($ul) === false) {
return this;
}
$ul.stop(true, true).animate(o.animation, o.speed, function () {
o.onShow.call($ul);
});
return this;
},
destroy: function () {
return this.each(function () {
var $this = $(this),
o = $this.data('sfOptions'),
$hasPopUp;
if (!o) {
return false;
}
$hasPopUp = $this.find(o.popUpSelector).parent('li');
clearTimeout(o.sfTimer);
toggleMenuClasses($this, o);
toggleAnchorClass($hasPopUp);
toggleTouchAction($this);
// remove event handlers
$this.off('.superfish').off('.hoverIntent');
// clear animation's inline display style
$hasPopUp.children(o.popUpSelector).attr('style', function (i, style) {
return style.replace(/display[^;]+;?/g, '');
});
// reset 'current' path classes
o.$path.removeClass(o.hoverClass + ' ' + c.bcClass).addClass(o.pathClass);
$this.find('.' + o.hoverClass).removeClass(o.hoverClass);
o.onDestroy.call($this);
$this.removeData('sfOptions');
});
},
init: function (op) {
return this.each(function () {
var $this = $(this);
if ($this.data('sfOptions')) {
return false;
}
var o = $.extend({}, $.fn.superfish.defaults, op),
$hasPopUp = $this.find(o.popUpSelector).parent('li');
o.$path = setPathToCurrent($this, o);
$this.data('sfOptions', o);
toggleMenuClasses($this, o, true);
toggleAnchorClass($hasPopUp, true);
toggleTouchAction($this);
applyHandlers($this, o);
$hasPopUp.not('.' + c.bcClass).superfish('hide', true);
o.onInit.call(this);
});
}
};
})();
$.fn.superfish = function (method, args) {
if (methods[method]) {
return methods[method].apply(this, Array.prototype.slice.call(arguments, 1));
}
else if (typeof method === 'object' || ! method) {
return methods.init.apply(this, arguments);
}
else {
return $.error('Method ' + method + ' does not exist on jQuery.fn.superfish');
}
};
$.fn.superfish.defaults = {
popUpSelector: 'ul,.sf-mega', // within menu context
hoverClass: 'sfHover',
pathClass: 'overrideThisToUse',
pathLevels: 1,
delay: 800,
animation: {opacity: 'show'},
animationOut: {opacity: 'hide'},
speed: 'normal',
speedOut: 'fast',
cssArrows: true,
disableHI: false,
onInit: $.noop,
onBeforeShow: $.noop,
onShow: $.noop,
onBeforeHide: $.noop,
onHide: $.noop,
onIdle: $.noop,
onDestroy: $.noop,
onHandleTouch: $.noop
};
})(jQuery, window);
Album Cover Slider
--------------------------------*/
//start added by Chase
var a = document.getElementsByTagName("a");
var cfImg = document.getElementsByClassName("coverflow__image")
var scaleI = 0;
for (scaleI; scaleI < a.length; scaleI++) {
if (scaleI === 3) {
continue;
} else {
a[scaleI].style.cursor = "default";
a[scaleI].addEventListener("click", prevDef);
}
}
function prevDef(e) {
e.preventDefault();
}
function forScale(coverflowPos) {
for (scaleI = 0; scaleI < a.length; scaleI++) {
a[scaleI].style.cursor = "default";
a[scaleI].addEventListener("click", prevDef);
}
for (scaleI = 0; scaleI < cfImg.length; scaleI++) {
if (cfImg[scaleI].getAttribute("data-coverflow-index") == coverflowPos) {
cfImg[scaleI].parentElement.style.cursor = "pointer";
cfImg[scaleI].parentElement.removeEventListener("click", prevDef);
}
}
}
//end added by Chase
function setupCoverflow(coverflowContainer) {
var coverflowContainers;
if (typeof coverflowContainer !== "undefined") {
if (Array.isArray(coverflowContainer)) {
coverflowContainers = coverflowContainer;
} else {
coverflowContainers = [coverflowContainer];
}
} else {
coverflowContainers = Array.prototype.slice.apply(document.getElementsByClassName('coverflow'));
}
coverflowContainers.forEach(function(containerElement) {
var coverflow = {};
var prevArrows, nextArrows;
//capture coverflow elements
coverflow.container = containerElement;
coverflow.images = Array.prototype.slice.apply(containerElement.getElementsByClassName('coverflow__image'));
coverflow.position = Math.floor(coverflow.images.length / 2) + 1;
//set indicies on images
coverflow.images.forEach(function(coverflowImage, i) {
coverflowImage.dataset.coverflowIndex = i + 1;
});
//set initial position
coverflow.container.dataset.coverflowPosition = coverflow.position;
//get prev/next arrows
prevArrows = Array.prototype.slice.apply(coverflow.container.getElementsByClassName("prev-arrow"));
nextArrows = Array.prototype.slice.apply(coverflow.container.getElementsByClassName("next-arrow"));
//add event handlers
function setPrevImage() {
coverflow.position = Math.max(1, coverflow.position - 1);
coverflow.container.dataset.coverflowPosition = coverflow.position;
//call the functin forScale added
forScale(coverflow.position);
}
function setNextImage() {
coverflow.position = Math.min(coverflow.images.length, coverflow.position + 1);
coverflow.container.dataset.coverflowPosition = coverflow.position;
//call the function Chase added
forScale(coverflow.position);
}
function jumpToImage(evt) {
coverflow.position = Math.min(coverflow.images.length, Math.max(1, evt.target.dataset.coverflowIndex));
coverflow.container.dataset.coverflowPosition = coverflow.position;
//start added by Chase
setTimeout(function() {
forScale(coverflow.position);
}, 1);
//end added by Chase
}
function onKeyPress(evt) {
switch (evt.which) {
case 37: //left arrow
setPrevImage();
break;
case 39: //right arrow
setNextImage();
break;
}
}
prevArrows.forEach(function(prevArrow) {
prevArrow.addEventListener('click', setPrevImage);
});
nextArrows.forEach(function(nextArrow) {
nextArrow.addEventListener('click', setNextImage);
});
coverflow.images.forEach(function(image) {
image.addEventListener('click', jumpToImage);
});
window.addEventListener('keyup', onKeyPress);
});
}
setupCoverflow(); ```
解决方案
推荐阅读
- python - Python 性能算法中的不均匀共享
- angular - 在 Angular 中,如何在更改事件中读取多个选中的复选框值
- php - 我如何聚合来自引用另一个表的 2 列的数据并获得过去 3 个月的每月总计?
- phpmyadmin - 生产环境中的 phpMyAdmin
- fiddler - 将 Fiddler 作为计划任务运行。未捕获流量
- c# - 如何在 MVC Core 2 应用程序中将登录页面设置为起始页面?
- c# - 向下滚动应用程序的方法?
- powershell - Powershell 命令成功返回 null
- react-native - 如何在本机反应中重新生成iOS和Android文件夹
- winapi - 使用 Windows 计划任务设置前台窗口