Javascript 用于将新加载的图像添加到卷的回调函数
您好，我正在一个使用无限滚动脚本的站点上工作，并试图找出如何为Image Lightbox添加回调：Javascript 用于将新加载的图像添加到卷的回调函数,javascript,jquery,Javascript,Jquery,您好，我正在一个使用无限滚动脚本的站点上工作，并试图找出如何为Image Lightbox添加回调： var cssTransitionSupport = function () { var s = document.body || document.documentElement, s = s.style; if (s.WebkitTransition == '') return '-webkit-'; if (s.MozTransition == ''
var cssTransitionSupport = function () {
var s = document.body || document.documentElement,
s = s.style;
if (s.WebkitTransition == '') return '-webkit-';
if (s.MozTransition == '') return '-moz-';
if (s.OTransition == '') return '-o-';
if (s.transition == '') return '';
return false;
},
isCssTransitionSupport = cssTransitionSupport() === false ? false : true,
cssTransitionTranslateX = function (element, positionX, speed) {
var options = {}, prefix = cssTransitionSupport();
options[prefix + 'transform'] = 'translateX(' + positionX + ')';
options[prefix + 'transition'] = prefix + 'transform ' + speed + 's linear';
element.css(options);
},
hasTouch = ('ontouchstart' in window),
hasPointers = window.navigator.pointerEnabled || window.navigator.msPointerEnabled,
wasTouched = function (event) {
if (hasTouch) return true;
if (!hasPointers || typeof event === 'undefined' || typeof event.pointerType === 'undefined') return false;
if (typeof event.MSPOINTER_TYPE_MOUSE !== 'undefined') {
if (event.MSPOINTER_TYPE_MOUSE != event.pointerType) return true;
} else if (event.pointerType != 'mouse') return true;
return false;
};
$.fn.imageLightbox = function (options) {
var options = $.extend({
selector: 'id="imagelightbox"',
allowedTypes: 'png|jpg|jpeg|gif',
animationSpeed: 250,
preloadNext: true,
enableKeyboard: true,
quitOnEnd: false,
quitOnImgClick: false,
quitOnDocClick: true,
onStart: false,
onEnd: false,
onLoadStart: false,
onLoadEnd: false
},
options),
targets = $([]),
target = $(),
image = $(),
imageWidth = 0,
imageHeight = 0,
swipeDiff = 0,
inProgress = false,
isTargetValid = function (element) {
return $(element).prop('tagName').toLowerCase() == 'a' && (new RegExp('\.(' + options.allowedTypes + ')$', 'i')).test($(element).attr('href'));
},
setImage = function () {
if (!image.length) return true;
var screenWidth = $(window).width() * 0.8,
screenHeight = $(window).height() * 0.9,
tmpImage = new Image();
tmpImage.src = image.attr('src');
tmpImage.onload = function () {
imageWidth = tmpImage.width;
imageHeight = tmpImage.height;
if (imageWidth > screenWidth || imageHeight > screenHeight) {
var ratio = imageWidth / imageHeight > screenWidth / screenHeight ? imageWidth / screenWidth : imageHeight / screenHeight;
imageWidth /= ratio;
imageHeight /= ratio;
}
image.css({
'width': imageWidth + 'px',
'height': imageHeight + 'px',
'top': ($(window).height() - imageHeight) / 2 + 'px',
'left': ($(window).width() - imageWidth) / 2 + 'px'
});
};
},
loadImage = function (direction) {
if (inProgress) return false;
direction = typeof direction === 'undefined' ? false : direction == 'left' ? 1 : -1;
if (image.length) {
if (direction !== false && (targets.length < 2 || (options.quitOnEnd === true && ((direction === -1 && targets.index(target) == 0) || (direction === 1 && targets.index(target) == targets.length - 1))))) {
quitLightbox();
return false;
}
var params = {
'opacity': 0
};
if (isCssTransitionSupport) cssTransitionTranslateX(image, (100 * direction) - swipeDiff + 'px', options.animationSpeed / 1000);
else params.left = parseInt(image.css('left')) + 100 * direction + 'px';
image.animate(params, options.animationSpeed, function () {
removeImage();
});
swipeDiff = 0;
}
inProgress = true;
if (options.onLoadStart !== false) options.onLoadStart();
setTimeout(function () {
image = $('<img ' + options.selector + ' />')
.attr('src', target.attr('href'))
.load(function () {
image.appendTo('body');
setImage();
var params = {
'opacity': 1
};
image.css('opacity', 0);
if (isCssTransitionSupport) {
cssTransitionTranslateX(image, -100 * direction + 'px', 0);
setTimeout(function () {
cssTransitionTranslateX(image, 0 + 'px', options.animationSpeed / 1000)
}, 50);
} else {
var imagePosLeft = parseInt(image.css('left'));
params.left = imagePosLeft + 'px';
image.css('left', imagePosLeft - 100 * direction + 'px');
}
image.animate(params, options.animationSpeed, function () {
inProgress = false;
if (options.onLoadEnd !== false) options.onLoadEnd();
});
if (options.preloadNext) {
var nextTarget = targets.eq(targets.index(target) + 1);
if (!nextTarget.length) nextTarget = targets.eq(0);
$('<img />').attr('src', nextTarget.attr('href')).load();
}
})
.error(function () {
if (options.onLoadEnd !== false) options.onLoadEnd();
})
var swipeStart = 0,
swipeEnd = 0,
imagePosLeft = 0;
image.on(hasPointers ? 'pointerup MSPointerUp' : 'click', function (e) {
e.preventDefault();
if (options.quitOnImgClick) {
quitLightbox();
return false;
}
if (wasTouched(e.originalEvent)) return true;
var posX = (e.pageX || e.originalEvent.pageX) - e.target.offsetLeft;
target = targets.eq(targets.index(target) - (imageWidth / 2 > posX ? 1 : -1));
if (!target.length) target = targets.eq(imageWidth / 2 > posX ? targets.length : 0);
loadImage(imageWidth / 2 > posX ? 'left' : 'right');
})
.on('touchstart pointerdown MSPointerDown', function (e) {
if (!wasTouched(e.originalEvent) || options.quitOnImgClick) return true;
if (isCssTransitionSupport) imagePosLeft = parseInt(image.css('left'));
swipeStart = e.originalEvent.pageX || e.originalEvent.touches[0].pageX;
})
.on('touchmove pointermove MSPointerMove', function (e) {
if (!wasTouched(e.originalEvent) || options.quitOnImgClick) return true;
e.preventDefault();
swipeEnd = e.originalEvent.pageX || e.originalEvent.touches[0].pageX;
swipeDiff = swipeStart - swipeEnd;
if (isCssTransitionSupport) cssTransitionTranslateX(image, -swipeDiff + 'px', 0);
else image.css('left', imagePosLeft - swipeDiff + 'px');
})
.on('touchend touchcancel pointerup pointercancel MSPointerUp MSPointerCancel', function (e) {
if (!wasTouched(e.originalEvent) || options.quitOnImgClick) return true;
if (Math.abs(swipeDiff) > 50) {
target = targets.eq(targets.index(target) - (swipeDiff < 0 ? 1 : -1));
if (!target.length) target = targets.eq(swipeDiff < 0 ? targets.length : 0);
loadImage(swipeDiff > 0 ? 'right' : 'left');
} else {
if (isCssTransitionSupport) cssTransitionTranslateX(image, 0 + 'px', options.animationSpeed / 1000);
else image.animate({
'left': imagePosLeft + 'px'
}, options.animationSpeed / 2);
}
});
}, options.animationSpeed + 100);
},
removeImage = function () {
if (!image.length) return false;
image.remove();
image = $();
},
quitLightbox = function () {
if (!image.length) return false;
image.animate({
'opacity': 0
}, options.animationSpeed, function () {
removeImage();
inProgress = false;
if (options.onEnd !== false) options.onEnd();
});
};
$(window).on('resize', setImage);
if (options.quitOnDocClick) {
$(document).on(hasTouch ? 'touchend' : 'click', function (e) {
if (image.length && !$(e.target).is(image)) quitLightbox();
})
}
if (options.enableKeyboard) {
$(document).on('keyup', function (e) {
if (!image.length) return true;
e.preventDefault();
if (e.keyCode == 27) quitLightbox();
if (e.keyCode == 37 || e.keyCode == 39) {
target = targets.eq(targets.index(target) - (e.keyCode == 37 ? 1 : -1));
if (!target.length) target = targets.eq(e.keyCode == 37 ? targets.length : 0);
loadImage(e.keyCode == 37 ? 'left' : 'right');
}
});
}
$(document).on('click', this.selector, function (e) {
if (!isTargetValid(this)) return true;
e.preventDefault();
if (inProgress) return false;
inProgress = false;
if (options.onStart !== false) options.onStart();
target = $(this);
loadImage();
});
this.each(function () {
if (!isTargetValid(this)) return true;
targets = targets.add($(this));
});
this.switchImageLightbox = function (index) {
var tmpTarget = targets.eq(index);
if (tmpTarget.length) {
var currentIndex = targets.index(target);
target = tmpTarget;
loadImage(index < currentIndex ? 'left' : 'right');
}
return this;
};
this.quitImageLightbox = function () {
quitLightbox();
return this;
};
return this;
};
$(function () {
$('a[data-imagelightbox="d"]').imageLightbox({
onStart: function () {
overlayOn();
},
onLoadStart: function () {
captionOff();
activityIndicatorOn();
},
onLoadEnd: function () {
captionOn();
activityIndicatorOff();
},
onEnd: function () {
captionOff();
overlayOff();
activityIndicatorOff();
}
});
});
var cssTransitionSupport = function () {
var s = document.body || document.documentElement,
s = s.style;
if (s.WebkitTransition == '') return '-webkit-';
if (s.MozTransition == '') return '-moz-';
if (s.OTransition == '') return '-o-';
if (s.transition == '') return '';
return false;
},
isCssTransitionSupport = cssTransitionSupport() === false ? false : true,
cssTransitionTranslateX = function (element, positionX, speed) {
var options = {}, prefix = cssTransitionSupport();
options[prefix + 'transform'] = 'translateX(' + positionX + ')';
options[prefix + 'transition'] = prefix + 'transform ' + speed + 's linear';
element.css(options);
},
hasTouch = ('ontouchstart' in window),
hasPointers = window.navigator.pointerEnabled || window.navigator.msPointerEnabled,
wasTouched = function (event) {
if (hasTouch) return true;
if (!hasPointers || typeof event === 'undefined' || typeof event.pointerType === 'undefined') return false;
if (typeof event.MSPOINTER_TYPE_MOUSE !== 'undefined') {
if (event.MSPOINTER_TYPE_MOUSE != event.pointerType) return true;
} else if (event.pointerType != 'mouse') return true;
return false;
};
$.fn.imageLightbox = function (options) {
var options = $.extend({
selector: 'id="imagelightbox"',
allowedTypes: 'png|jpg|jpeg|gif',
animationSpeed: 250,
preloadNext: true,
enableKeyboard: true,
quitOnEnd: false,
quitOnImgClick: false,
quitOnDocClick: true,
onStart: false,
onEnd: false,
onLoadStart: false,
onLoadEnd: false
},
options),
targets = $([]),
target = $(),
image = $(),
imageWidth = 0,
imageHeight = 0,
swipeDiff = 0,
inProgress = false,
isTargetValid = function (element) {
return $(element).prop('tagName').toLowerCase() == 'a' && (new RegExp('\.(' + options.allowedTypes + ')$', 'i')).test($(element).attr('href'));
},
setImage = function () {
if (!image.length) return true;
var screenWidth = $(window).width() * 0.8,
screenHeight = $(window).height() * 0.9,
tmpImage = new Image();
tmpImage.src = image.attr('src');
tmpImage.onload = function () {
imageWidth = tmpImage.width;
imageHeight = tmpImage.height;
if (imageWidth > screenWidth || imageHeight > screenHeight) {
var ratio = imageWidth / imageHeight > screenWidth / screenHeight ? imageWidth / screenWidth : imageHeight / screenHeight;
imageWidth /= ratio;
imageHeight /= ratio;
}
image.css({
'width': imageWidth + 'px',
'height': imageHeight + 'px',
'top': ($(window).height() - imageHeight) / 2 + 'px',
'left': ($(window).width() - imageWidth) / 2 + 'px'
});
};
},
loadImage = function (direction) {
if (inProgress) return false;
direction = typeof direction === 'undefined' ? false : direction == 'left' ? 1 : -1;
if (image.length) {
if (direction !== false && (targets.length < 2 || (options.quitOnEnd === true && ((direction === -1 && targets.index(target) == 0) || (direction === 1 && targets.index(target) == targets.length - 1))))) {
quitLightbox();
return false;
}
var params = {
'opacity': 0
};
if (isCssTransitionSupport) cssTransitionTranslateX(image, (100 * direction) - swipeDiff + 'px', options.animationSpeed / 1000);
else params.left = parseInt(image.css('left')) + 100 * direction + 'px';
image.animate(params, options.animationSpeed, function () {
removeImage();
});
swipeDiff = 0;
}
inProgress = true;
if (options.onLoadStart !== false) options.onLoadStart();
setTimeout(function () {
image = $('<img ' + options.selector + ' />')
.attr('src', target.attr('href'))
.load(function () {
image.appendTo('body');
setImage();
var params = {
'opacity': 1
};
image.css('opacity', 0);
if (isCssTransitionSupport) {
cssTransitionTranslateX(image, -100 * direction + 'px', 0);
setTimeout(function () {
cssTransitionTranslateX(image, 0 + 'px', options.animationSpeed / 1000)
}, 50);
} else {
var imagePosLeft = parseInt(image.css('left'));
params.left = imagePosLeft + 'px';
image.css('left', imagePosLeft - 100 * direction + 'px');
}
image.animate(params, options.animationSpeed, function () {
inProgress = false;
if (options.onLoadEnd !== false) options.onLoadEnd();
});
if (options.preloadNext) {
var nextTarget = targets.eq(targets.index(target) + 1);
if (!nextTarget.length) nextTarget = targets.eq(0);
$('<img />').attr('src', nextTarget.attr('href')).load();
}
})
.error(function () {
if (options.onLoadEnd !== false) options.onLoadEnd();
})
var swipeStart = 0,
swipeEnd = 0,
imagePosLeft = 0;
image.on(hasPointers ? 'pointerup MSPointerUp' : 'click', function (e) {
e.preventDefault();
if (options.quitOnImgClick) {
quitLightbox();
return false;
}
if (wasTouched(e.originalEvent)) return true;
var posX = (e.pageX || e.originalEvent.pageX) - e.target.offsetLeft;
target = targets.eq(targets.index(target) - (imageWidth / 2 > posX ? 1 : -1));
if (!target.length) target = targets.eq(imageWidth / 2 > posX ? targets.length : 0);
loadImage(imageWidth / 2 > posX ? 'left' : 'right');
})
.on('touchstart pointerdown MSPointerDown', function (e) {
if (!wasTouched(e.originalEvent) || options.quitOnImgClick) return true;
if (isCssTransitionSupport) imagePosLeft = parseInt(image.css('left'));
swipeStart = e.originalEvent.pageX || e.originalEvent.touches[0].pageX;
})
.on('touchmove pointermove MSPointerMove', function (e) {
if (!wasTouched(e.originalEvent) || options.quitOnImgClick) return true;
e.preventDefault();
swipeEnd = e.originalEvent.pageX || e.originalEvent.touches[0].pageX;
swipeDiff = swipeStart - swipeEnd;
if (isCssTransitionSupport) cssTransitionTranslateX(image, -swipeDiff + 'px', 0);
else image.css('left', imagePosLeft - swipeDiff + 'px');
})
.on('touchend touchcancel pointerup pointercancel MSPointerUp MSPointerCancel', function (e) {
if (!wasTouched(e.originalEvent) || options.quitOnImgClick) return true;
if (Math.abs(swipeDiff) > 50) {
target = targets.eq(targets.index(target) - (swipeDiff < 0 ? 1 : -1));
if (!target.length) target = targets.eq(swipeDiff < 0 ? targets.length : 0);
loadImage(swipeDiff > 0 ? 'right' : 'left');
} else {
if (isCssTransitionSupport) cssTransitionTranslateX(image, 0 + 'px', options.animationSpeed / 1000);
else image.animate({
'left': imagePosLeft + 'px'
}, options.animationSpeed / 2);
}
});
}, options.animationSpeed + 100);
},
removeImage = function () {
if (!image.length) return false;
image.remove();
image = $();
},
quitLightbox = function () {
if (!image.length) return false;
image.animate({
'opacity': 0
}, options.animationSpeed, function () {
removeImage();
inProgress = false;
if (options.onEnd !== false) options.onEnd();
});
};
$(window).on('resize', setImage);
if (options.quitOnDocClick) {
$(document).on(hasTouch ? 'touchend' : 'click', function (e) {
if (image.length && !$(e.target).is(image)) quitLightbox();
})
}
if (options.enableKeyboard) {
$(document).on('keyup', function (e) {
if (!image.length) return true;
e.preventDefault();
if (e.keyCode == 27) quitLightbox();
if (e.keyCode == 37 || e.keyCode == 39) {
target = targets.eq(targets.index(target) - (e.keyCode == 37 ? 1 : -1));
if (!target.length) target = targets.eq(e.keyCode == 37 ? targets.length : 0);
loadImage(e.keyCode == 37 ? 'left' : 'right');
}
});
}
$(document).on('click', this.selector, function (e) {
if (!isTargetValid(this)) return true;
e.preventDefault();
if (inProgress) return false;
inProgress = false;
if (options.onStart !== false) options.onStart();
target = $(this);
loadImage();
});
this.each(function () {
if (!isTargetValid(this)) return true;
targets = targets.add($(this));
});
this.switchImageLightbox = function (index) {
var tmpTarget = targets.eq(index);
if (tmpTarget.length) {
var currentIndex = targets.index(target);
target = tmpTarget;
loadImage(index < currentIndex ? 'left' : 'right');
}
return this;
};
this.quitImageLightbox = function () {
quitLightbox();
return this;
};
return this;
};
var cstransitionsupport=函数（）{
var s=document.body | | document.documentElement，
s=s.风格；
如果（s.WebkitTransition=''）返回“-webkit-”；
如果（s.MozTransition=''）返回'-moz-'；
如果（s.OTransition=''）返回'-o-'；
如果（s.transition=''）返回“”；
返回false；
},
ISCSTransitionSupport=CSTranslationSupport（）==false？错：对，
cssTransitionTranslateX=功能（元件、位置X、速度）{
var options={}，prefix=cstranitionsupport（）；
选项[前缀+'transform']='translateX（'+positionX+'）；
选项[前缀+转换]=前缀+转换+速度+s线性'；
css（选项）；
},
hasTouch=（窗口中的“ontouchstart”），
hasPointers=window.navigator.pointerEnabled | | window.navigator.msPointerEnabled，
waspothed=功能（事件）{
如果（hasTouch）返回true；
如果（！hasPointers | | typeof event=='undefined'| | typeof event.pointerType=='undefined'）返回false；
if（typeof event.MSPOINTER\u TYPE\u MOUSE！=“未定义”）{
if（event.MSPOINTER\u TYPE\u MOUSE！=event.pointerType）返回true；
}else if（event.pointerType！=“mouse”）返回true；
返回false；
};
$.fn.imageLightbox=函数（选项）{
变量选项=$.extend({
选择器：“id=”imagelightbox“，
允许的类型：“png | jpg | jpeg | gif”，
动画速度：250，
下一个：是的，
启用键盘：正确，
基托宁：错，
quitOnImgClick:false，
quitOnDocClick：对，
onStart:false，
奥宁：错，
onLoadStart:false，
onLoadEnd:false
},
选项），
目标=$（[]），
目标=$（），
image=$（），
imageWidth=0，
imageHeight=0，
swipeDiff=0，
inProgress=false，
isTargetValid=函数（元素）{
返回$（element.prop（'tagName'）.toLowerCase（）='a'&&（'new RegExp（'\.（'+options.allowedTypes+'））$，'i'））.test（$（element.attr（'href'））；
},
setImage=函数（）{
如果（！image.length）返回true；
var screenWidth=$（窗口）.width（）*0.8，
屏幕高度=$（窗口）.height（）*0.9，
tmpImage=新图像（）；
tmpImage.src=image.attr（'src'）；
tmpImage.onload=函数（）{
imageWidth=tmpImage.width；
imageHeight=tmpImage.height；
如果（图像宽度>屏幕宽度| |图像高度>屏幕高度）{
var比率=图像宽度/图像高度>屏幕宽度/屏幕高度？图像宽度/屏幕宽度：图像高度/屏幕高度；
图像宽度/=比值；
成像高度/=比值；
}
image.css({
“宽度”：imageWidth+“px”，
“高度”：imageHeight+“px”，
'top'：（$（window.height（）-imageHeight）/2+'px'，
'左'：（$（window.width（）-imageWidth）/2+'px'
});
};
},
loadImage=功能（方向）{
if（inProgress）返回false；
方向=类型方向==='未定义'？错误：方向=='左'？1:-1；
if（image.length）{
if（direction！==false&&（targets.length<2 | |）（options.quitOnEnd==true&&（（direction==-1&&targets.index（target）==0）|&（direction==1&&targets.index（target）==targets.length-1())）{
quitLightbox（）；
返回false；
}
变量参数={
“不透明度”：0
};
如果（ISCSTransitionSupport）CSTranslationTranslatex（图像，（100*方向）-swipeDiff+'px'，options.animationSpeed/1000）；
else params.left=parseInt（image.css（'left'））+100*方向+px'；
image.animate（参数、选项、动画速度、函数（）{
移除图像（）；
});
swipeDiff=0；
}
inProgress=true；
如果（options.onLoadStart！==false）options.onLoadStart（）；
setTimeout（函数（）{
image=$（''）.attr（'src'，nextTarget.attr（'href'））.load（）；
}
})
.错误（函数（）{
如果（options.onLoadEnd！==false）options.onLoadEnd（）；
})
var swipeStart=0，
swipended=0，
imagePosLeft=0；
image.on（hasPointers？'pointerup MSPointerUp'：'click'，函数（e）{
e、 预防默认值（）；
如果（options.quitOnImgClick）{
quitLightbox（）；
返回false；
}
if（waspothed（e.originalEvent））返回true；
var posX=（e.pageX | | e.originalEvent.pageX）-e.target.offsetLeft；
target=targets.eq（targets.index(
this.quitImageLightbox = function() {
quitLightbox();
return this;
};
this.loadImages = function(images_array) {
targets = images_array;
console.log(targets);
console.log(targets.length);
return this;
};
windows.lightbox.loadImages(images_array)