您好，我正在开发一个具有无限滚动脚本的网站，并试图找出如何为图像灯箱添加回调:
http://osvaldas.info/image-lightbox-responsive-touch-friendly
我已经设法让第二页上的图像与图像灯箱一起使用，并使用以下方法使用相同的变量设置它们的样式:
$(function () {
$('a[data-imagelightbox="d"]').imageLightbox({
onStart: function () {
overlayOn();
},
onLoadStart: function () {
captionOff();
activityIndicatorOn();
},
onLoadEnd: function () {
captionOn();
activityIndicatorOff();
},
onEnd: function () {
captionOff();
overlayOff();
activityIndicatorOff();
}
});
});
我的问题是，虽然可以在灯箱中查看“第二页”中的图像，但它们不会添加到图库/卷中供用户循环/导航。当用户查看“第二页”中的图像并尝试循环浏览时，他们只能查看“第一页”中的图像。
有人知道我应该使用什么脚本来在无限滚动加载更多内容后刷新/添加图像吗？提前致谢!!
这是图像灯箱的完整 js:
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;
};
最佳答案
首先
$(function () {
window.lightbox = $('a[data-imagelightbox="d"]').imageLightbox();
});
在“imagelightbox.js”的末尾，添加以下代码。
this.quitImageLightbox = function() {
quitLightbox();
return this;
};
this.loadImages = function(images_array) {
targets = images_array;
console.log(targets);
console.log(targets.length);
return this;
};
当你获得新加载的图像时
windows.lightbox.loadImages(images_array)
它应该可以工作......!
关于javascript - 将新加载的图像添加到卷中的回调函数，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/24933828/