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jQuery实现左右切换焦点图_jquery

程序员文章站 2022-04-24 08:04:26
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演示图:

jQuery实现左右切换焦点图_jquery

代码:

$(document).ready(function() {   
  greyInitRedux();
  ieDropdownsNav();
  ieDropdownsFilter();
  itemViewer();
  jsTabsetInit();
  slider();
  headerTabs();
  carousel();
  emergencyClose();
  replyLinks();
  adjournLinks();
  zebra_strip_rows();
  visitor_site_slideshow();
 });
 
var carousel_round = 0;
 
/*-------------------------------------------
  Grey Initial Values
-------------------------------------------*/
function greyInitRedux() {
  $("input.filled, textarea.filled").focus(function(e){
    if(this.value == this.defaultValue)
    {
      $(this).removeClass('filled');
       this.value= '';
    }
    $(this).blur(function(f){ 
      if(this.value == this.defaultValue) {
        $(this).addClass('filled');
        } else if(this.value == "") {
          this.value = this.defaultValue;
          $(this).addClass('filled');
        }
      });
  })
 
}
   
/*-------------------------------------------
  IE6 CSS Main Nav Dropdowns
-------------------------------------------*/
function ieDropdownsNav() {
  if(document.all&&document.getElementById) 
  {
    navRoot = document.getElementById('main-nav');
    if (!navRoot) { return false; }
     
    for(i=0; i .load, .filter-nav a', 'click', function (e)
  //$(document).delegate('.expandable > .load, .filter-nav a', 'click', function (e)
  $(document).delegate('.filter-nav a', 'click', function (e) 
  {
    // get the src for the content we're trying to view
    var dataSrc = $(this).attr('data-src');
     
    // determine whether we're trying to sort the existing view
    if($(this).attr('data-sort')) {
      var dataSort = $(this).attr('data-sort');
    } else {
      var dataSort = $('.filter-nav > li > a').attr('data-sort');
    }
 
    // how many items do we have?
    var itemOffset = $('.expandable .listing > li').size();
     
    //find out if we clicked the menu, if so, clear out everything and add data attribute to the load more
    if($(this).closest('div').hasClass("filter"))
    {
      var hiddenDiv = $('', {
        "class": "items hidden spacer",
        "height": $('.expandable').outerHeight()
      });
      $('.expandable > .load').before(hiddenDiv);
       
      $('.expandable > ul, .expandable > div:not(.spacer)').remove();
      $('.load').attr('data-src',dataSrc);
   
      // Change Class of Dropdown Toggle
      var clickedClass = $(this).parent().attr('class');
      $("#filter-drop strong").removeClass().addClass(clickedClass);
   
      // Change Text of Dropdown Toggle
      var thisLabel = $(this).text();
      $("#filter-drop strong span").text(thisLabel);
       
      // Grab datasrc from clicked-on menu item and populate the filters with it
      $('.filter-nav a').attr('data-src' , dataSrc);
      $('.filter-nav li').removeClass('active');
      $('.filter-nav > li').eq(0).addClass('active');
    }
       
    //find out if we clicked the filter nav, if so let's switch the active class
    if($(this).closest('ul').hasClass("filter-nav")) {
      $('.filter-nav li').removeClass('active');
      $(this).parent().addClass('active');
       
      //Also let's remove all the items before replacing them with what we want
      var hiddenDiv = $('', {
        "class": "items hidden spacer",
        "height": $('.expandable').outerHeight()
      });
      $('.expandable > .load').before(hiddenDiv);
       
      $('.expandable > ul, .expandable > div:not(.spacer)').remove();
    }
     
    $.get(dataSrc, { offset: itemOffset, sort: dataSort }, function(data) {
      $('.expandable .spacer').remove();
      var hiddenDiv = $('');
      $('.expandable > .load').before(hiddenDiv);
      $(hiddenDiv).append(data).hide().removeClass("hidden").fadeIn(); 
    });
     
    e.preventDefault();
  });
}
 
 
function jsTabsetInit() {
  var $tabset = $('.heading-tabset').eq(0);
   
  var $tablist = $('
    ', {"class": "heading-tab"}); $tabset.prepend($tablist); $('div.heading-tab h3').each(function() { var $anchor = $('', { "class": $(this).attr('class'), "onClick": '_gaq.push([\'_trackEvent\', \'Connect\', \'Click\', \'Head'+$(this).attr('class')+'\', 3]);', "href": "#", "html": $(this).html() }); var $li = $('
  • '); $li.append($anchor); $tablist.append($li); }); $('div.heading-tab').remove(); $('.heading-tabset:gt(0)').each(function() { $tabset.append($(this).find('.listing')); $(this).remove(); }); } function slider() { $('.slider').each(function() { // As we loop through the slider items we'll document the tallest one and the left position // of each element var maxHeight = 0, lastWidth = 0; // grab the slider and make sure the overflow is hidden and it has a defined width var $slider = $(this); $slider.css('width', $slider.outerWidth()); $slider.css('position', 'relative'); $slider.css('overflow', 'hidden'); // store the index (or the currently "selected" slide) $slider.prop('index', 0); // loop through each of the direct children $slider.find('> *').each(function() { // localize the child as a jQuery object var $li = $(this); // if this is the tallest child, document it if ($li.outerHeight() > maxHeight) { maxHeight = $li.outerHeight(); } // position each child to the immediate right of its preceding sibling $li.css('position', 'absolute'); $li.css('top', 0); $li.css('left', lastWidth); // update our maths so we know where to place the next sibling lastWidth+= $li.outerWidth(); }); // set the height of the slider based on the tallest child //$slider.css('height', maxHeight); // build the previous control button and store a reference to its related slider var $previous = $('', {"class": "prev disabled", "href": "#", "text": "Previous"}); $previous.prop('slider', $slider); // build the next control button and store a reference to its related slider var $next = $('', {"class": "next", "href": "#", "text": "Next"}); $next.prop('slider', $slider); // build the controls div and add it to the markup var $controls = $('', {"class": "controls"}).append($previous).append($next); $slider.after($controls); $slider.prop('controls', $controls); }); // watch for clicks on the controls $(document).delegate('.listing + .controls .prev, .listing + .controls .next', 'click', function (event) { // stop our clicks from affecting the browser/url event.preventDefault(); // localize a jQuery version of the clicked link var $anchor = $(this); // grab the slider, that we previously stored while creating these links var $slider = $anchor.prop('slider'); // localize the index for prettier code var focusedIndex = $slider.prop('index'); // determine what slide is focused var $focus = $slider.find('> *').eq(focusedIndex); // grab the width of that focused slide var widthDelta = $focus.outerWidth(); // if we clicked the next button we're moving to the left (negative values, so // multiply by -1). if ($anchor.hasClass('next')) { widthDelta *= -1; } focusedIndex += ($anchor.hasClass('next')) ? 1 : -1; // check that the upcoming movement won't push the first element too far to the right // leaving whitespace before the element if ($slider.find('> *').eq(0).position().left + widthDelta > 0) { return true; } // check that the upcoming movement won't push the last element too far to the left // leaving whitespace after the element var $lastChild = $slider.find('> *').eq(-1) if ($lastChild.position().left + widthDelta *'); // finally loop through each child and kick off the animation $siblings.each(function(index) { // we'll determine the `left` in just a second, sit tight var left = 0; // localize the child element var $li = $(this); // loop through each sibling and determine the new left if (index = focusedIndex && index = focusedIndex + 3) { left = $slider.outerWidth() * 2; } // start the animation $li.animate({'left': left}, 300); // are we at the beginning? if (index == 0 && left == 0) { $slider.prop('controls').find('.prev').addClass('disabled'); } else if (index == 0) { $slider.prop('controls').find('.prev').removeClass('disabled'); } // are we at the end? if (index == $siblings.size()-1 && left == $slider.outerWidth() - $lastChild.outerWidth() - 1) { $slider.prop('controls').find('.next').addClass('disabled'); } else if (index == $siblings.size()-1) { $slider.prop('controls').find('.next').removeClass('disabled'); } }); // if we got down here then we actually moved the slider, update the reference to the // focused slide $slider.prop('index', focusedIndex); }); } function headerTabs() { var $tabset = $('.heading-tabset') $tabset.find('.listing:gt(0)').hide(); $tabset.find('.controls:gt(0)').hide(); $tabset.find('.heading-tab li').eq(0).addClass('active'); $(document).delegate('.heading-tab a', 'click', function(event) { event.preventDefault(); $(this).parent().addClass('active'); $(this).parent().siblings().removeClass('active'); var index = $(this).parent().prevAll('*').size(); $(this).parents('.heading-tabset').find('.listing').hide(); $(this).parents('.heading-tabset').find('.listing').eq(index).show(); $(this).parents('.heading-tabset').find('.controls').hide(); $(this).parents('.heading-tabset').find('.controls').eq(index).show(); }); } function carousel() { $(document).delegate('.carousel .next, .carousel .previous', 'click', function(event) { // prevent the default anchor action event.preventDefault(); // get the current carousel var $carousel = $(this).parents('.carousel'); // check if we're already in the middle of a movement if ($carousel.prop('moving')) { return true; } // if we actually clicked it, then stop any running timers if (event.clientX) { stop($carousel); } // localize the index, so we know where we are var index = $carousel.prop('index'); // determine if we're going forward or backward var movingForward = $(this).hasClass('next'); // grab all the slides var $slides = $carousel.find('.carousel-item'); // grab the currently focused slide var $focus = $slides.eq(index); // figure out where're we going from here var nextObject = movingForward ? nextSlide($carousel, index) : previousSlide($carousel, index); // locaalize the next div to be shown var $next = nextObject.element; // localize the index of the next element to be shown var newIndex = nextObject.index; // determine where we should place the next element so it slides from the correct side var initialLeft = movingForward ? $(document.body).outerWidth() : -$next.outerWidth(); // save the current zero position, everything will move to/from here var zeroPosition = $focus.offset().left; // determine where the focus is moving to var targetLeft = zeroPosition + (movingForward ? -$next.outerWidth() : $next.outerWidth()); // we're comitted to moving now so set the flag to true so we don't duplicate animations $carousel.prop('moving', true); // reset all z-indexes to 1 $slides.css('z-index', 1); // make the currently focused slide higher than all the rest $focus.css('z-index', 2); // setup the current slide so it can animate out $focus.css({ "position": "absolute", "top": 0, "left": zeroPosition }); // setup the next slide to slide in, moving it above the focused slide and off screen $next.css({ "opacity": 0, "position": "absolute", "top": 0, "left": initialLeft, "z-index": 3 }); // animate the current slide out $focus.animate({ "opacity": 0, "left": targetLeft }, 800); // set up what we're animating var animation = { "opacity": 1, "left": zeroPosition } // horrible ie fix if ($.browser.msie && parseInt($.browser.version) 0 ) { stop($carousel); } else if ( index==1 ) { carousel_round++; } }, 5000); $carousel.prop('timer', timer); $carousel.find('.play.pause').removeClass('play'); } // stop any existing timers, additionally update the play/pause button to the correct // visual state function stop($carousel) { clearInterval(timer); $carousel.prop('timer', false); $carousel.find('.pause').addClass('play'); //N.C.: added to stop carousel after one round. carousel_round = 0; } function nextSlide($carousel, index) { var $slides = $carousel.find('.carousel-item'); if (index+1 = 0) { return {"index":index-1, "element":$slides.eq(index-1)}; } return {"index":$slides.size()-1, "element":$slides.eq(-1)}; } // build the controls for inclusion into the page var $previousBtn = $('', {"class": "previous", "href": "#", "text": "Previous"}); var $playPauseBtn = $('', {"class": "play pause", "href": "#", "text": "Play/Pause"}); var $nextBtn = $('', {"class": "next", "href": "#", "text": "Next"}); var $controlsDiv = $('', {"class": "carousel-controls"}); $controlsDiv.append($previousBtn); $controlsDiv.append($playPauseBtn); $controlsDiv.append($nextBtn); // loop through each carousel and set some default properties/styles $('.carousel').each(function() { // localize the carousel to this function var $carousel = $(this); // set the positioning and a default height, becuase we're going to be taken out of the // flow once our animation starts $carousel.css({ "position": "relative" //"min-height": $carousel.find('.carousel-item').eq(0).outerHeight() //N.C. commented out }); // store the currently visible slide's index $carousel.prop('index', 0); // hide subsequent slides $carousel.find('.carousel-item:gt(0)').hide(); // append in our controls $carousel.prepend($controlsDiv.clone(true)); // add the previous/next images $carousel.find('.main-image').each(function(index) { // get the previous image var $prevImage = $(previousSlide($carousel, index).element).find('.main-image').clone(); // remove the class $prevImage.removeClass('main-image'); // create a link for the previous image var $previousAnchor = $('', { "href": "#", "class": "prev-image", "html": $prevImage }); $previousAnchor.css('opacity', 0.2); // add in the previous image/anchor $(this).before($previousAnchor); // get the next image var $nextImage = $(nextSlide($carousel, index).element).find('.main-image').clone(); // remove the class $nextImage.removeClass('main-image'); // create a link for the previous image var $nextAnchor = $('', { "href": "#", "class": "next-image", "html": $nextImage }); $nextAnchor.css('opacity', 0.2); // add in the next image/anchor $(this).after($nextAnchor); }); // start the carousel by default start($carousel); }); } function emergencyClose() { //$('.emergency .wrap').append('Close'); $(document).delegate('.emergency .close', 'click', function(event) { event.preventDefault(); $(this).parents('.emergency').remove(); }); } function replyLinks() { //$close = $('', {"class": "close", "href": "#", "text": "Close"}); $twitterWrap = $('', {"id": "twitter-wrap"}); //$twitterWrap.append($close); $twitter = $('', {"id": "twitter"}); $twitterWrap.append($twitter); $(document.body).append($twitterWrap); /*twttr.anywhere(function (T) { T("#twitter").tweetBox({ "width": 515, "height": 133, "defaultContent": "", "onTweet": function() { $("#twitter-wrap").fadeOut('fast'); $('#overlay').fadeOut(); $('#overlay').remove(); _gaq.push(['trackEvent', 'Home', 'SubmitReply', 'TwitterReply', 5]); //$twitter.remove(); } }); });*/ $(document).delegate('.link-reply', 'click', function(event) { event.preventDefault(); //if ( !$('#overlay') ) { $(document.body).prepend($('', {"id": "overlay"})); //} $('#overlay').fadeIn(); $("#twitter-wrap").css({ "position": "fixed", "top": 200, "left": ($(document.body).width()-515)/2 }); if ($.browser == 'msie') { $("#twitter-wrap").css({ "position": "absolute", "top": $(document.body).scrollTop() + 200 }); } $("#twitter-wrap").fadeIn('fast'); }); $(document).delegate('#overlay, #twitter-wrap .close', 'click', function(event) { event.preventDefault(); $('#twitter-wrap').fadeOut('fast'); $('#overlay').fadeOut('fast', function() { $(this).remove(); }) }); } function adjournLinks() { $('.adjoin-options').each(function() { var headings = []; $(this).find('*[data-heading]').each(function() { headings[$(this).attr('data-heading')] = $(this).attr('data-heading'); }); var $headings = $('
      ', { "class": "adjoin-header" }); for (var heading in headings) { var $li = $('
    • '); var $a = $('', { "href": "#", "onClick": '_gaq.push([\'_trackEvent\', \'SocialDirectory\', \'Click\', \'Head'+heading+'\', 3]);', "data-show": heading, "text": heading }) $li.append($a); $headings.append($li); } $(this).before($headings); }); $(document).delegate('a[data-show]', 'click', function(event) { // stop the default click action event.preventDefault(); // set active $(this).parent().siblings().find('.active').removeClass('active'); $(this).addClass('active'); // find the appropriate elements $('.adjoin-options *[data-heading]').hide(); $('.adjoin-options *[data-heading="'+$(this).attr('data-show')+'"].').fadeIn(); }); $('.adjoin-header').find('a[data-show]').eq(0).trigger('click'); } $(document).ready(function () { var $filter = $('#filter-drop'); var $filterSpacer = $('', { "class": "filter-drop-spacer", "height": $filter.outerHeight() }); var $homeShield = $('.home .primary'); var $totalHeight = $('.carousel').outerHeight() + $('.header').outerHeight() if ($filter.size()) { $(window).scroll(function () { if($(window).scrollTop() > $totalHeight ) { $homeShield.addClass("shieldfix"); } else if ($homeShield.hasClass('shieldfix') && $(window).scrollTop() $filter.offset().top) { $filter.css('width', $filter.width()); $filter.before($filterSpacer); $filter.addClass("fix"); } else if ($filter.hasClass('fix') && $(window).scrollTop() 0 ) { jQuery("#home_items_loading").show(); jQuery.ajax({ type: 'POST', url: 'ajax/home_items', data: 'timestamp='+curr_timestamp+'&index='+views_left, dataType: 'json', success: function(data) { jQuery("#home_items_loading").hide(); jQuery("#home_content").append(data.html); curr_timestamp=data.timestamp; } }); views_left--; } var click_index = 2-views_left; _gaq.push(['_trackEvent', 'ViewMoreChannels', 'Click', 'ViewMore_'+click_index.toString(), 3]); if ( views_left
    • 以上所述就是本文的全部内容了,希望大家能够喜欢。