我无法在colorbox 1.3.9中为图像添加描述行。我正在使用以下代码：
(function($) {
$(document).ready(function(){
$ (".colorbox").colorbox({ opacity:"0.8",width:"80%",height:"90%",current: "image : {current} / {total}"
});
});
})(jQuery);
有没有办法将描述行添加到colorbox？
答案 0 :(得分：1)
这很容易做，并在ColorBox文档中详细说明。
使用TITLE属性存储照片或其他数字资产的简短描述，如下所示：
<a class="group1 cboxElement" href="../content/ohoopee1.jpg" title="Me and my grandfather on the Ohoopee.">Grouped Photo 1</a>
每个资产都有自己的描述。
答案 1 :(得分：1)
您可以在title属性中插入HTML：
<a class="cboxElement" rel="group1" href="path/to/image" title="<h1>Title</h1><p>Description</p>">Grouped Photo 1</a>
您应该能够使用CSS设置输出样式。
答案 2 :(得分：1)
我已经对链接的alt属性中的描述进行了更改。
实施例
<a href="test.jpg" alt="test description in alt tag" title="test title" class="groupGallery">
Javacript
我在js文件中添加了行
/*!
Colorbox v1.5.9 - 2014-04-25
jQuery lightbox and modal window plugin
(c) 2014 Jack Moore - http://www.jacklmoore.com/colorbox
license: http://www.opensource.org/licenses/mit-license.php
*/
(function ($, document, window) {
.
.
.
rel: function () {
return this.rel;
},
href: function () {
// using this.href would give the absolute url, when the href may have been inteded as a selector (e.g. '#container')
return $(this).attr('href');
},
title: function () {
return this.title;
},
description: function () { //code to add description at bottom
return $(this).attr('alt');;
}
},
// Abstracting the HTML and event identifiers for easy rebranding
colorbox = 'colorbox',
prefix = 'cbox',
boxElement = prefix + 'Element',
// Events
event_open = prefix + '_open',
event_load = prefix + '_load',
event_complete = prefix + '_complete',
event_cleanup = prefix + '_cleanup',
event_closed = prefix + '_closed',
event_purge = prefix + '_purge',
// Cached jQuery Object Variables
$overlay,
$box,
$wrap,
$content,
$topBorder,
$leftBorder,
$rightBorder,
$bottomBorder,
$related,
$window,
$loaded,
$loadingBay,
$loadingOverlay,
$title,
$current,
$description, //code to add description at bottom
$slideshow,
$next,
$prev,
$close,
$groupControls,
$events = $('<a/>'), // $({}) would be prefered, but there is an issue with jQuery 1.4.2
.
.
.
function launch(element) {
var options;
if (!closing) {
options = $(element).data('colorbox');
settings = new Settings(element, options);
getRelated(settings.get('rel'));
if (!open) {
open = active = true; // Prevents the page-change action from queuing up if the visitor holds down the left or right keys.
setClass(settings.get('className'));
// Show colorbox so the sizes can be calculated in older versions of jQuery
$box.css({ visibility: 'hidden', display: 'block', opacity: '' });
$loaded = $tag(div, 'LoadedContent', 'width:0; height:0; overflow:hidden; visibility:hidden');
$content.css({ width: '', height: '' }).append($loaded);
// Cache values needed for size calculations
interfaceHeight = $topBorder.height() + $bottomBorder.height() + $content.outerHeight(true) - $content.height() + 25; //code to add description at bottom and increase height of light box
interfaceWidth = $leftBorder.width() + $rightBorder.width() + $content.outerWidth(true) - $content.width() ;
loadedHeight = $loaded.outerHeight(true);
loadedWidth = $loaded.outerWidth(true);
// Opens inital empty Colorbox prior to content being loaded.
var initialWidth = setSize(settings.get('initialWidth'), 'x');
var initialHeight = setSize(settings.get('initialHeight'), 'y');
var maxWidth = settings.get('maxWidth');
var maxHeight = settings.get('maxHeight');
settings.w = (maxWidth !== false ? Math.min(initialWidth, setSize(maxWidth, 'x')) : initialWidth) - loadedWidth - interfaceWidth;
settings.h = (maxHeight !== false ? Math.min(initialHeight, setSize(maxHeight, 'y')) : initialHeight) - loadedHeight - interfaceHeight;
$loaded.css({ width: '', height: settings.h });
publicMethod.position();
trigger(event_open);
settings.get('onOpen');
$groupControls.add($title).hide();
$groupControls.add($description).hide(); //code to add description at bottom
$box.focus();
if (settings.get('trapFocus')) {
// Confine focus to the modal
// Uses event capturing that is not supported in IE8-
if (document.addEventListener) {
document.addEventListener('focus', trapFocus, true);
$events.one(event_closed, function () {
document.removeEventListener('focus', trapFocus, true);
});
}
}
// Return focus on closing
if (settings.get('returnFocus')) {
$events.one(event_closed, function () {
$(settings.el).focus();
});
}
}
$overlay.css({
opacity: parseFloat(settings.get('opacity')) || '',
cursor: settings.get('overlayClose') ? 'pointer' : '',
visibility: 'visible'
}).show();
if (settings.get('closeButton')) {
$close.html(settings.get('close')).appendTo($content);
} else {
$close.appendTo('<div/>'); // replace with .detach() when dropping jQuery < 1.4
}
load();
}
}
// Colorbox's markup needs to be added to the DOM prior to being called
// so that the browser will go ahead and load the CSS background images.
function appendHTML() {
if (!$box && document.body) {
init = false;
$window = $(window);
$box = $tag(div).attr({
id: colorbox,
'class': $.support.opacity === false ? prefix + 'IE' : '', // class for optional IE8 & lower targeted CSS.
role: 'dialog',
tabindex: '-1'
}).hide();
$overlay = $tag(div, "Overlay").hide();
$loadingOverlay = $([$tag(div, "LoadingOverlay")[0], $tag(div, "LoadingGraphic")[0]]);
$wrap = $tag(div, "Wrapper");
$content = $tag(div, "Content").append(
$title = $tag(div, "Title"),
$current = $tag(div, "Current"),
$description = $tag(div, "Description"), //code to add description at bottom
$prev = $('<button type="button"/>').attr({ id: prefix + 'Previous' }),
$next = $('<button type="button"/>').attr({ id: prefix + 'Next' }),
$slideshow = $tag('button', "Slideshow"),
$loadingOverlay
);
$close = $('<button type="button"/>').attr({ id: prefix + 'Close' });
$wrap.append( // The 3x3 Grid that makes up Colorbox
$tag(div).append(
$tag(div, "TopLeft"),
$topBorder = $tag(div, "TopCenter"),
$tag(div, "TopRight")
),
$tag(div, false, 'clear:left').append(
$leftBorder = $tag(div, "MiddleLeft"),
$content,
$rightBorder = $tag(div, "MiddleRight")
),
$tag(div, false, 'clear:left').append(
$tag(div, "BottomLeft"),
$bottomBorder = $tag(div, "BottomCenter"),
$tag(div, "BottomRight")
)
).find('div div').css({ 'float': 'left' });
$loadingBay = $tag(div, false, 'position:absolute; width:9999px; visibility:hidden; display:none; max-width:none;');
$groupControls = $next.add($prev).add($current).add($slideshow);
$(document.body).append($overlay, $box.append($wrap, $loadingBay));
}
}
// Add Colorbox's event bindings
function addBindings() {
function clickHandler(e) {
// ignore non-left-mouse-clicks and clicks modified with ctrl / command, shift, or alt.
// See: http://jacklmoore.com/notes/click-events/
if (!(e.which > 1 || e.shiftKey || e.altKey || e.metaKey || e.ctrlKey)) {
e.preventDefault();
launch(this);
}
}
if ($box) {
if (!init) {
init = true;
// Anonymous functions here keep the public method from being cached, thereby allowing them to be redefined on the fly.
$next.click(function () {
publicMethod.next();
});
$prev.click(function () {
publicMethod.prev();
});
$close.click(function () {
publicMethod.close();
});
$overlay.click(function () {
if (settings.get('overlayClose')) {
publicMethod.close();
}
});
// Key Bindings
$(document).bind('keydown.' + prefix, function (e) {
var key = e.keyCode;
if (open && settings.get('escKey') && key === 27) {
e.preventDefault();
publicMethod.close();
}
if (open && settings.get('arrowKey') && $related[1] && !e.altKey) {
if (key === 37) {
e.preventDefault();
$prev.click();
} else if (key === 39) {
e.preventDefault();
$next.click();
}
}
});
if ($.isFunction($.fn.on)) {
// For jQuery 1.7+
$(document).on('click.' + prefix, '.' + boxElement, clickHandler);
} else {
// For jQuery 1.3.x -> 1.6.x
// This code is never reached in jQuery 1.9, so do not contact me about 'live' being removed.
// This is not here for jQuery 1.9, it's here for legacy users.
$('.' + boxElement).live('click.' + prefix, clickHandler);
}
}
return true;
}
return false;
}
// Don't do anything if Colorbox already exists.
if ($.colorbox) {
return;
}
// Append the HTML when the DOM loads
$(appendHTML);
// ****************
// PUBLIC FUNCTIONS
// Usage format: $.colorbox.close();
// Usage from within an iframe: parent.jQuery.colorbox.close();
// ****************
publicMethod = $.fn[colorbox] = $[colorbox] = function (options, callback) {
var settings;
var $obj = this;
options = options || {};
if ($.isFunction($obj)) { // assume a call to $.colorbox
$obj = $('<a/>');
options.open = true;
} else if (!$obj[0]) { // colorbox being applied to empty collection
return $obj;
}
if (!$obj[0]) { // colorbox being applied to empty collection
return $obj;
}
appendHTML();
if (addBindings()) {
if (callback) {
options.onComplete = callback;
}
$obj.each(function () {
var old = $.data(this, colorbox) || {};
$.data(this, colorbox, $.extend(old, options));
}).addClass(boxElement);
settings = new Settings($obj[0], options);
if (settings.get('open')) {
launch($obj[0]);
}
}
return $obj;
};
publicMethod.position = function (speed, loadedCallback) {
var
css,
top = 0,
left = 0,
offset = $box.offset(),
scrollTop,
scrollLeft;
$window.unbind('resize.' + prefix);
// remove the modal so that it doesn't influence the document width/height
$box.css({ top: -9e4, left: -9e4 });
scrollTop = $window.scrollTop();
scrollLeft = $window.scrollLeft();
if (settings.get('fixed')) {
offset.top -= scrollTop;
offset.left -= scrollLeft;
$box.css({ position: 'fixed' });
} else {
top = scrollTop;
left = scrollLeft;
$box.css({ position: 'absolute' });
}
// keeps the top and left positions within the browser's viewport.
if (settings.get('right') !== false) {
left += Math.max($window.width() - settings.w - loadedWidth - interfaceWidth - setSize(settings.get('right'), 'x'), 0);
} else if (settings.get('left') !== false) {
left += setSize(settings.get('left'), 'x');
} else {
left += Math.round(Math.max($window.width() - settings.w - loadedWidth - interfaceWidth, 0) / 2);
}
if (settings.get('bottom') !== false) {
top += Math.max(winheight() - settings.h - loadedHeight - interfaceHeight - setSize(settings.get('bottom'), 'y'), 0);
} else if (settings.get('top') !== false) {
top += setSize(settings.get('top'), 'y');
} else {
top += Math.round(Math.max(winheight() - settings.h - loadedHeight - interfaceHeight, 0) / 2);
}
$box.css({ top: offset.top, left: offset.left, visibility: 'visible' });
// this gives the wrapper plenty of breathing room so it's floated contents can move around smoothly,
// but it has to be shrank down around the size of div#colorbox when it's done. If not,
// it can invoke an obscure IE bug when using iframes.
$wrap[0].style.width = $wrap[0].style.height = "9999px";
function modalDimensions() {
$topBorder[0].style.width = $bottomBorder[0].style.width = $content[0].style.width = (parseInt($box[0].style.width, 10) - interfaceWidth) + 'px';
$content[0].style.height = $leftBorder[0].style.height = $rightBorder[0].style.height = (parseInt($box[0].style.height, 10) - interfaceHeight) + 'px';
}
css = { width: settings.w + loadedWidth + interfaceWidth, height: settings.h + loadedHeight + interfaceHeight, top: top, left: left };
// setting the speed to 0 if the content hasn't changed size or position
if (speed) {
var tempSpeed = 0;
$.each(css, function (i) {
if (css[i] !== previousCSS[i]) {
tempSpeed = speed;
return;
}
});
speed = tempSpeed;
}
previousCSS = css;
if (!speed) {
$box.css(css);
}
$box.dequeue().animate(css, {
duration: speed || 0,
complete: function () {
modalDimensions();
active = false;
// shrink the wrapper down to exactly the size of colorbox to avoid a bug in IE's iframe implementation.
$wrap[0].style.width = (settings.w + loadedWidth + interfaceWidth) + "px";
$wrap[0].style.height = (settings.h + loadedHeight + interfaceHeight) + "px";
if (settings.get('reposition')) {
setTimeout(function () { // small delay before binding onresize due to an IE8 bug.
$window.bind('resize.' + prefix, publicMethod.position);
}, 1);
}
if (loadedCallback) {
loadedCallback();
}
},
step: modalDimensions
});
};
publicMethod.resize = function (options) {
var scrolltop;
if (open) {
options = options || {};
if (options.width) {
settings.w = setSize(options.width, 'x') - loadedWidth - interfaceWidth;
}
if (options.innerWidth) {
settings.w = setSize(options.innerWidth, 'x');
}
$loaded.css({ width: settings.w });
if (options.height) {
settings.h = setSize(options.height, 'y') - loadedHeight - interfaceHeight;
}
if (options.innerHeight) {
settings.h = setSize(options.innerHeight, 'y');
}
if (!options.innerHeight && !options.height) {
scrolltop = $loaded.scrollTop();
$loaded.css({ height: "auto" });
settings.h = $loaded.height();
}
$loaded.css({ height: settings.h });
if (scrolltop) {
$loaded.scrollTop(scrolltop);
}
publicMethod.position(settings.get('transition') === "none" ? 0 : settings.get('speed'));
}
};
publicMethod.prep = function (object) {
if (!open) {
return;
}
var callback, speed = settings.get('transition') === "none" ? 0 : settings.get('speed');
$loaded.remove();
$loaded = $tag(div, 'LoadedContent').append(object);
function getWidth() {
settings.w = settings.w || $loaded.width();
settings.w = settings.mw && settings.mw < settings.w ? settings.mw : settings.w;
return settings.w;
}
function getHeight() {
settings.h = settings.h || $loaded.height();
settings.h = settings.mh && settings.mh < settings.h ? settings.mh : settings.h;
return settings.h;
}
$loaded.hide()
.appendTo($loadingBay.show())// content has to be appended to the DOM for accurate size calculations.
.css({ width: getWidth(), overflow: settings.get('scrolling') ? 'auto' : 'hidden' })
.css({ height: getHeight() })// sets the height independently from the width in case the new width influences the value of height.
.prependTo($content);
$loadingBay.hide();
// floating the IMG removes the bottom line-height and fixed a problem where IE miscalculates the width of the parent element as 100% of the document width.
$(photo).css({ 'float': 'none' });
setClass(settings.get('className'));
callback = function () {
var total = $related.length,
iframe,
complete;
if (!open) {
return;
}
function removeFilter() { // Needed for IE8 in versions of jQuery prior to 1.7.2
if ($.support.opacity === false) {
$box[0].style.removeAttribute('filter');
}
}
complete = function () {
clearTimeout(loadingTimer);
$loadingOverlay.hide();
trigger(event_complete);
settings.get('onComplete');
};
$title.html(settings.get('title')).show();
$description.html(settings.get('description')).show(); //code to add description at bottom
$loaded.show();
if (total > 1) { // handle grouping
if (typeof settings.get('current') === "string") {
$current.html(settings.get('current').replace('{current}', index + 1).replace('{total}', total)).show();
}
$next[(settings.get('loop') || index < total - 1) ? "show" : "hide"]().html(settings.get('next'));
$prev[(settings.get('loop') || index) ? "show" : "hide"]().html(settings.get('previous'));
slideshow();
// Preloads images within a rel group
if (settings.get('preloading')) {
$.each([getIndex(-1), getIndex(1)], function () {
var img,
i = $related[this],
settings = new Settings(i, $.data(i, colorbox)),
src = settings.get('href');
if (src && isImage(settings, src)) {
src = retinaUrl(settings, src);
img = document.createElement('img');
img.src = src;
}
});
}
} else {
$groupControls.hide();
}
if (settings.get('iframe')) {
iframe = document.createElement('iframe');
if ('frameBorder' in iframe) {
iframe.frameBorder = 0;
}
if ('allowTransparency' in iframe) {
iframe.allowTransparency = "true";
}
if (!settings.get('scrolling')) {
iframe.scrolling = "no";
}
$(iframe)
.attr({
src: settings.get('href'),
name: (new Date()).getTime(), // give the iframe a unique name to prevent caching
'class': prefix + 'Iframe',
allowFullScreen: true // allow HTML5 video to go fullscreen
})
.one('load', complete)
.appendTo($loaded);
$events.one(event_purge, function () {
iframe.src = "//about:blank";
});
if (settings.get('fastIframe')) {
$(iframe).trigger('load');
}
} else {
complete();
}
if (settings.get('transition') === 'fade') {
$box.fadeTo(speed, 1, removeFilter);
} else {
removeFilter();
}
};
if (settings.get('transition') === 'fade') {
$box.fadeTo(speed, 0, function () {
publicMethod.position(0, callback);
});
} else {
publicMethod.position(speed, callback);
}
};
function load() {
var href, setResize, prep = publicMethod.prep, $inline, request = ++requests;
active = true;
photo = false;
trigger(event_purge);
trigger(event_load);
settings.get('onLoad');
settings.h = settings.get('height') ?
setSize(settings.get('height'), 'y') - loadedHeight - interfaceHeight :
settings.get('innerHeight') && setSize(settings.get('innerHeight'), 'y') ;
settings.w = settings.get('width') ?
setSize(settings.get('width'), 'x') - loadedWidth - interfaceWidth :
settings.get('innerWidth') && setSize(settings.get('innerWidth'), 'x');
// Sets the minimum dimensions for use in image scaling
settings.mw = settings.w;
settings.mh = settings.h;
// Re-evaluate the minimum width and height based on maxWidth and maxHeight values.
// If the width or height exceed the maxWidth or maxHeight, use the maximum values instead.
if (settings.get('maxWidth')) {
settings.mw = setSize(settings.get('maxWidth'), 'x') - loadedWidth - interfaceWidth;
settings.mw = settings.w && settings.w < settings.mw ? settings.w : settings.mw;
}
if (settings.get('maxHeight')) {
settings.mh = setSize(settings.get('maxHeight'), 'y') - loadedHeight - interfaceHeight;
settings.mh = settings.h && settings.h < settings.mh ? settings.h : settings.mh;
}
href = settings.get('href');
loadingTimer = setTimeout(function () {
$loadingOverlay.show();
}, 100);
if (settings.get('inline')) {
var $target = $(href);
// Inserts an empty placeholder where inline content is being pulled from.
// An event is bound to put inline content back when Colorbox closes or loads new content.
$inline = $('<div>').hide().insertBefore($target);
$events.one(event_purge, function () {
$inline.replaceWith($target);
});
prep($target);
} else if (settings.get('iframe')) {
// IFrame element won't be added to the DOM until it is ready to be displayed,
// to avoid problems with DOM-ready JS that might be trying to run in that iframe.
prep(" ");
} else if (settings.get('html')) {
prep(settings.get('html'));
} else if (isImage(settings, href)) {
href = retinaUrl(settings, href);
photo = new Image();
$(photo)
.addClass(prefix + 'Photo')
.bind('error', function () {
prep($tag(div, 'Error').html(settings.get('imgError')));
})
.one('load', function () {
if (request !== requests) {
return;
}
// A small pause because some browsers will occassionaly report a
// img.width and img.height of zero immediately after the img.onload fires
setTimeout(function () {
var percent;
$.each(['alt', 'longdesc', 'aria-describedby'], function (i, val) {
var attr = $(settings.el).attr(val) || $(settings.el).attr('data-' + val);
if (attr) {
photo.setAttribute(val, attr);
}
});
if (settings.get('retinaImage') && window.devicePixelRatio > 1) {
photo.height = photo.height / window.devicePixelRatio;
photo.width = photo.width / window.devicePixelRatio;
}
if (settings.get('scalePhotos')) {
setResize = function () {
photo.height -= photo.height * percent;
photo.width -= photo.width * percent;
};
if (settings.mw && photo.width > settings.mw) {
percent = (photo.width - settings.mw) / photo.width;
setResize();
}
if (settings.mh && photo.height > settings.mh) {
percent = (photo.height - settings.mh) / photo.height;
setResize();
}
}
if (settings.h) {
photo.style.marginTop = Math.max(settings.mh - photo.height, 0) / 2 + 'px';
}
if ($related[1] && (settings.get('loop') || $related[index + 1])) {
photo.style.cursor = 'pointer';
photo.onclick = function () {
publicMethod.next();
};
}
photo.style.width = photo.width + 'px';
photo.style.height = photo.height + 'px';
prep(photo);
}, 1);
});
photo.src = href;
} else if (href) {
$loadingBay.load(href, settings.get('data'), function (data, status) {
if (request === requests) {
prep(status === 'error' ? $tag(div, 'Error').html(settings.get('xhrError')) : $(this).contents());
}
});
}
}
// Navigates to the next page/image in a set.
publicMethod.next = function () {
if (!active && $related[1] && (settings.get('loop') || $related[index + 1])) {
index = getIndex(1);
launch($related[index]);
}
};
publicMethod.prev = function () {
if (!active && $related[1] && (settings.get('loop') || index)) {
index = getIndex(-1);
launch($related[index]);
}
};
// Note: to use this within an iframe use the following format: parent.jQuery.colorbox.close();
publicMethod.close = function () {
if (open && !closing) {
closing = true;
open = false;
trigger(event_cleanup);
settings.get('onCleanup');
$window.unbind('.' + prefix);
$overlay.fadeTo(settings.get('fadeOut') || 0, 0);
$box.stop().fadeTo(settings.get('fadeOut') || 0, 0, function () {
$box.hide();
$overlay.hide();
trigger(event_purge);
$loaded.remove();
setTimeout(function () {
closing = false;
trigger(event_closed);
settings.get('onClosed');
}, 1);
});
}
};
// Removes changes Colorbox made to the document, but does not remove the plugin.
publicMethod.remove = function () {
if (!$box) { return; }
$box.stop();
$.colorbox.close();
$box.stop().remove();
$overlay.remove();
closing = false;
$box = null;
$('.' + boxElement)
.removeData(colorbox)
.removeClass(boxElement);
$(document).unbind('click.' + prefix);
};
// A method for fetching the current element Colorbox is referencing.
// returns a jQuery object.
publicMethod.element = function () {
return $(settings.el);
};
publicMethod.settings = defaults;
}(jQuery, document, window));
CSS 在#cboxCurrent元素
下面添加了以下行#cboxDescription{position:relative; top:-5px;left:0; color:#ccc; font-size:16px; padding:3px;}
答案 3 :(得分：0)
我知道这是一个非常古老的主题 - 但我最近遇到了这个并通过使用分页元素来解决它（假设你也不需要它！）：
$('.gallery a').colorbox({rel:'gal', current:function () {
var description = $(this).attr('alt');
if (description == null) {
return "";
} else {
return ""+description+"";
}
}});
我将描述放在跨度中，因为它覆盖了图像，如果它不存在，我不希望看到半透明背景 - 描述也来自alt元素链接，可访问性也是一个胜利！
希望这有帮助！