在 Lightbox 插件上设置最大宽度 800px

Question

你好，我在我的一个网站上使用这个灯箱插件，我希望图片打开时最大宽度为 800px，但因为我是 Jquery 的初学者，我不知道我应该在哪里设置它：

/**
 * jQuery lightBox plugin
 * This jQuery plugin was inspired and based on Lightbox 2 by Lokesh Dhakar (http://www.huddletogether.com/projects/lightbox2/)
 * and adapted to me for use like a plugin from jQuery.
 * @name jquery-lightbox-0.5.js
 * @author Leandro Vieira Pinho - http://leandrovieira.com
 * @version 0.5
 * @date April 11, 2008
 * @category jQuery plugin
 * @copyright (c) 2008 Leandro Vieira Pinho (leandrovieira.com)
 * @license CCAttribution-ShareAlike 2.5 Brazil - http://creativecommons.org/licenses/by-sa/2.5/br/deed.en_US
 * @example Visit http://leandrovieira.com/projects/jquery/lightbox/ for more informations about this jQuery plugin
 */
(function($){$.fn.lightBox=function(settings){settings=jQuery.extend({overlayBgColor:'#000',overlayOpacity:0.8,fixedNavigation:false,imageLoading:'css/images/lightbox-ico-loading.gif',imageBtnPrev:'css/images/lightbox-btn-prev.gif',imageBtnNext:'css/images/lightbox-btn-next.gif',imageBtnClose:'css/images/lightbox-btn-close.gif',imageBlank:'css/images/lightbox-blank.gif',containerBorderSize:10,containerResizeSpeed:400,txtImage:'Image',txtOf:'of',keyToClose:'c',keyToPrev:'p',keyToNext:'n',imageArray:[],activeImage:0},settings);var jQueryMatchedObj=this;function _initialize(){_start(this,jQueryMatchedObj);return false}function _start(objClicked,jQueryMatchedObj){$('embed, object, select').css({'visibility':'hidden'});_set_interface();settings.imageArray.length=0;settings.activeImage=0;if(jQueryMatchedObj.length==1){settings.imageArray.push(new Array(objClicked.getAttribute('href'),objClicked.getAttribute('title')))}else{for(var i=0;i<jQueryMatchedObj.length;i++){settings.imageArray.push(new Array(jQueryMatchedObj[i].getAttribute('href'),jQueryMatchedObj[i].getAttribute('title')))}}while(settings.imageArray[settings.activeImage][0]!=objClicked.getAttribute('href')){settings.activeImage++}_set_image_to_view()}function _set_interface(){$('body').append('<div id="jquery-overlay"></div><div id="jquery-lightbox"><div id="lightbox-container-image-box"><div id="lightbox-container-image"><img id="lightbox-image"><div style="" id="lightbox-nav"><a href="#" id="lightbox-nav-btnPrev"></a><a href="#" id="lightbox-nav-btnNext"></a></div><div id="lightbox-loading"><a href="#" id="lightbox-loading-link"><img src="'+settings.imageLoading+'"></a></div></div></div><div id="lightbox-container-image-data-box"><div id="lightbox-container-image-data"><div id="lightbox-image-details"><span id="lightbox-image-details-caption"></span><span id="lightbox-image-details-currentNumber"></span></div><div id="lightbox-secNav"><a href="#" id="lightbox-secNav-btnClose"><img src="'+settings.imageBtnClose+'"></a></div></div></div></div>');var arrPageSizes=___getPageSize();$('#jquery-overlay').css({backgroundColor:settings.overlayBgColor,opacity:settings.overlayOpacity,width:arrPageSizes[0],height:arrPageSizes[1]}).fadeIn();var arrPageScroll=___getPageScroll();$('#jquery-lightbox').css({top:arrPageScroll[1]+(arrPageSizes[3]/10),left:arrPageScroll[0]}).show();$('#jquery-overlay,#jquery-lightbox').click(function(){_finish()});$('#lightbox-loading-link,#lightbox-secNav-btnClose').click(function(){_finish();return false});$(window).resize(function(){var arrPageSizes=___getPageSize();$('#jquery-overlay').css({width:arrPageSizes[0],height:arrPageSizes[1]});var arrPageScroll=___getPageScroll();$('#jquery-lightbox').css({top:arrPageScroll[1]+(arrPageSizes[3]/10),left:arrPageScroll[0]})})}function _set_image_to_view(){$('#lightbox-loading').show();if(settings.fixedNavigation){$('#lightbox-image,#lightbox-container-image-data-box,#lightbox-image-details-currentNumber').hide()}else{$('#lightbox-image,#lightbox-nav,#lightbox-nav-btnPrev,#lightbox-nav-btnNext,#lightbox-container-image-data-box,#lightbox-image-details-currentNumber').hide()}var objImagePreloader=new Image();objImagePreloader.onload=function(){$('#lightbox-image').attr('src',settings.imageArray[settings.activeImage][0]);_resize_container_image_box(objImagePreloader.width,objImagePreloader.height);objImagePreloader.onload=function(){}};objImagePreloader.src=settings.imageArray[settings.activeImage][0]};function _resize_container_image_box(intImageWidth,intImageHeight){var intCurrentWidth=$('#lightbox-container-image-box').width();var intCurrentHeight=$('#lightbox-container-image-box').height();var intWidth=(intImageWidth+(settings.containerBorderSize*2));var intHeight=(intImageHeight+(settings.containerBorderSize*2));var intDiffW=intCurrentWidth-intWidth;var intDiffH=intCurrentHeight-intHeight;$('#lightbox-container-image-box').animate({width:intWidth,height:intHeight},settings.containerResizeSpeed,function(){_show_image()});if((intDiffW==0)&&(intDiffH==0)){if($.browser.msie){___pause(250)}else{___pause(100)}}$('#lightbox-container-image-data-box').css({width:intImageWidth});$('#lightbox-nav-btnPrev,#lightbox-nav-btnNext').css({height:intImageHeight+(settings.containerBorderSize*2)})};function _show_image(){$('#lightbox-loading').hide();$('#lightbox-image').fadeIn(function(){_show_image_data();_set_navigation()});_preload_neighbor_images()};function _show_image_data(){$('#lightbox-container-image-data-box').slideDown('fast');$('#lightbox-image-details-caption').hide();if(settings.imageArray[settings.activeImage][1]){$('#lightbox-image-details-caption').html(settings.imageArray[settings.activeImage][1]).show()}if(settings.imageArray.length>1){$('#lightbox-image-details-currentNumber').html(settings.txtImage+' '+(settings.activeImage+1)+' '+settings.txtOf+' '+settings.imageArray.length).show()}}function _set_navigation(){$('#lightbox-nav').show();$('#lightbox-nav-btnPrev,#lightbox-nav-btnNext').css({'background':'transparent url('+settings.imageBlank+') no-repeat'});if(settings.activeImage!=0){if(settings.fixedNavigation){$('#lightbox-nav-btnPrev').css({'background':'url('+settings.imageBtnPrev+') left 15% no-repeat'}).unbind().bind('click',function(){settings.activeImage=settings.activeImage-1;_set_image_to_view();return false})}else{$('#lightbox-nav-btnPrev').unbind().hover(function(){$(this).css({'background':'url('+settings.imageBtnPrev+') left 15% no-repeat'})},function(){$(this).css({'background':'transparent url('+settings.imageBlank+') no-repeat'})}).show().bind('click',function(){settings.activeImage=settings.activeImage-1;_set_image_to_view();return false})}}if(settings.activeImage!=(settings.imageArray.length-1)){if(settings.fixedNavigation){$('#lightbox-nav-btnNext').css({'background':'url('+settings.imageBtnNext+') right 15% no-repeat'}).unbind().bind('click',function(){settings.activeImage=settings.activeImage+1;_set_image_to_view();return false})}else{$('#lightbox-nav-btnNext').unbind().hover(function(){$(this).css({'background':'url('+settings.imageBtnNext+') right 15% no-repeat'})},function(){$(this).css({'background':'transparent url('+settings.imageBlank+') no-repeat'})}).show().bind('click',function(){settings.activeImage=settings.activeImage+1;_set_image_to_view();return false})}}_enable_keyboard_navigation()}function _enable_keyboard_navigation(){$(document).keydown(function(objEvent){_keyboard_action(objEvent)})}function _disable_keyboard_navigation(){$(document).unbind()}function _keyboard_action(objEvent){if(objEvent==null){keycode=event.keyCode;escapeKey=27}else{keycode=objEvent.keyCode;escapeKey=objEvent.DOM_VK_ESCAPE}key=String.fromCharCode(keycode).toLowerCase();if((key==settings.keyToClose)||(key=='x')||(keycode==escapeKey)){_finish()}if((key==settings.keyToPrev)||(keycode==37)){if(settings.activeImage!=0){settings.activeImage=settings.activeImage-1;_set_image_to_view();_disable_keyboard_navigation()}}if((key==settings.keyToNext)||(keycode==39)){if(settings.activeImage!=(settings.imageArray.length-1)){settings.activeImage=settings.activeImage+1;_set_image_to_view();_disable_keyboard_navigation()}}}function _preload_neighbor_images(){if((settings.imageArray.length-1)>settings.activeImage){objNext=new Image();objNext.src=settings.imageArray[settings.activeImage+1][0]}if(settings.activeImage>0){objPrev=new Image();objPrev.src=settings.imageArray[settings.activeImage-1][0]}}function _finish(){$('#jquery-lightbox').remove();$('#jquery-overlay').fadeOut(function(){$('#jquery-overlay').remove()});$('embed, object, select').css({'visibility':'visible'})}function ___getPageSize(){var xScroll,yScroll;if(window.innerHeight&&window.scrollMaxY){xScroll=window.innerWidth+window.scrollMaxX;yScroll=window.innerHeight+window.scrollMaxY}else if(document.body.scrollHeight>document.body.offsetHeight){xScroll=document.body.scrollWidth;yScroll=document.body.scrollHeight}else{xScroll=document.body.offsetWidth;yScroll=document.body.offsetHeight}var windowWidth,windowHeight;if(self.innerHeight){if(document.documentElement.clientWidth){windowWidth=document.documentElement.clientWidth}else{windowWidth=self.innerWidth}windowHeight=self.innerHeight}else if(document.documentElement&&document.documentElement.clientHeight){windowWidth=document.documentElement.clientWidth;windowHeight=document.documentElement.clientHeight}else if(document.body){windowWidth=document.body.clientWidth;windowHeight=document.body.clientHeight}if(yScroll<windowHeight){pageHeight=windowHeight}else{pageHeight=yScroll}if(xScroll<windowWidth){pageWidth=xScroll}else{pageWidth=windowWidth}arrayPageSize=new Array(pageWidth,pageHeight,windowWidth,windowHeight);return arrayPageSize};function ___getPageScroll(){var xScroll,yScroll;if(self.pageYOffset){yScroll=self.pageYOffset;xScroll=self.pageXOffset}else if(document.documentElement&&document.documentElement.scrollTop){yScroll=document.documentElement.scrollTop;xScroll=document.documentElement.scrollLeft}else if(document.body){yScroll=document.body.scrollTop;xScroll=document.body.scrollLeft}arrayPageScroll=new Array(xScroll,yScroll);return arrayPageScroll};function ___pause(ms){var date=new Date();curDate=null;do{var curDate=new Date()}while(curDate-date<ms)};return this.unbind('click').click(_initialize)}})(jQuery);

如果有人已经有了这个问题或知道如何解决此问题，我们将不胜感激，

谢谢

Answer 1

我修改了 Leandro Vieira Pinho 的 jquery.lightbox-0.5.js 文件。这个修改后的 JavaScript 文件的作用是，它将检查每个图像，如果宽度或高度超过屏幕（视口区域），则在保留纵横比的同时调整图像大小。

要使用此文件，您只需将此 javascript 文件的全部内容复制并粘贴到现有的 jquery.lightbox-0.5.js 文件中，或者只需用此文件替换旧文件。

我给出了 2 个链接：第一个链接将让您下载整个 javascript 文件，第二个链接将显示源代码，您可以将其复制并粘贴到现有的 jquery.lightbox-0.5.js 中。

下载 javascript 文件：http://turboupload.com/081zwttawcb6

源代码：http://www.sourcepod.com/twhbtf88-5047

Answer 2

你可以只使用 css：

#lightbox-container-image-box {
  max-width:970px; // Or your max-width
}

#lightbox-container-image img {
 max-width:950px; // (your max width - 20)
}

这在当前版本的 lightbox 上有一个小问题，灰色背景并没有一直延伸到页面 - 但这里只用 css 就可以完成很多工作。我建议不要修改 lightbox 的代码库 - 破坏向前兼容性。