Home  >  Article  >  Web Front-end  >  jquery imitates Baidu experience sliding switching browsing effect_jquery

jquery imitates Baidu experience sliding switching browsing effect_jquery

WBOY
WBOYOriginal
2016-05-16 16:04:071215browse

jquery imitates Baidu experience sliding switching browsing effect

$(function() {
  wordStrong();
  $("#content ul").width($("#content ul li:first").width()*$("#content ul li").length);
  $("#header .top_right .vote").hover(function() {
    $(this).children(".hover-tip").css("display", "block");
    $(this).children(".num").css("display", "none");  
  }, function() {
    $(this).children(".hover-tip").css("display", "none");
    $(this).children(".num").css("display", "block");  
  });
   
   
  $("#content .left, #content .right").width(($(document).width()-$("#content").width())/4);
  $("#content .left").css("left", -$("#content .left").width());
  $("#content .right").css("right", -$("#content .right").width());
   
  var showId = 0;
  $("#content span.left").hover(function() {
    if ( checkFirst() ) return ;
    $(this).css("cursor", "pointer");
    $(this).siblings(".sl").stop().animate({
      opacity:0.5 
    }); 
  }, function() {
    $(this).siblings(".sl").stop().animate({
      opacity:0
    }); 
  }).click(function() {
    if ( checkFirst() ) return ;
    showId --;
    $("#content").attr("showId", showId);
    $("#footer li").children().removeClass("active").end().children().eq(showId).addClass("active");
    center(showId);
  });
   
  $("#content span.right").hover(function() {
    if ( checkLast() ) return ;
    $(this).css("cursor", "pointer");
    $(this).siblings(".sr").stop().animate({
      opacity:0.5
    }); 
  }, function() {
    $(this).siblings(".sr").stop().animate({
      opacity:0
    }); 
  }).click(function() {
    if ( checkLast() ) return ;  
    showId ++;   
    $("#content").attr("showId", showId);
    $("#footer li").children().removeClass("active").end().children().eq(showId).addClass("active");
    center(showId); 
  });
   
  function checkFirst() {
    if ( $("#content").attr("showId") == 0 ) {
      $("#content span.left").css("cursor", "default");
      return true;    
    }
    return false;
  }
   
  function checkLast() {
    if ( $("#content").attr("showId") == $("#content ul li").length-1 ) {
      $("#content span.right").css("cursor", "default");
      return true;    
    }
    return false;  
  }
     
  /* 首字母大写 */
  function wordStrong() {
    var liList = $("#content ul li");
    for (var j = 0; j < liList.length; j ++) {
      var pList = $("#content .cont_"+(j+1)+" .cont_word p");
      for (var i = 0; i < pList.length; i ++) {
        var p = pList.get(i);
        var pCont = $(p).html();    
        var s = $("<b>"+(i+1)+"</b>");
        s.css("font-size", "24px");   
        $(p).html('');
        s.appendTo(p);
        $(p).append(pCont.substring(1));    
      }
    }
  }  
   
  center(0);
   
  //相对li居中
  function center(liIndex) {
    var li = $("#content ul li").css("opacity", 0.3).eq(liIndex).css("opacity", 1);
    $("#content ul").animate({
      left: (-li.width()*liIndex)
    });
  }
   
  var footLen = $("#content ul li").length;
  var foots = $("#footer ul");
  for (var i = 1; i < footLen-1; i ++) {
    var childA = $("<a>").html(i);
    childA.attr("href", "#");
    $("<li>").append(childA).insertBefore(foots.children("[step=last]")).attr("step", i);   
  }
  foots.children(":last").attr("step", footLen-1);
  foots.css("left", ($(window).width()-foots.width())/2); 
  $("#footer li").click(function() {
    $("#footer ul li").children().removeClass("active");
    $(this).children().addClass("active");
    center($(this).attr("step"));
  });
   
  function myAddEvent(obj, e, fn) {
    if ( obj.attachEvent ) {
      obj.attachEvent('on'+e, fn);
    }else obj.addEventListener(e, fn, false);
  }
   
  function onMouseWheel(ev) { 
    var ev = ev||event;   
    //IE
    //wheelDelta  下滚:负, 上滚:下
    //alert(oEvent.wheelDelta);
    //FF
    //detail:  下滚:正, 上滚: 负
    //alert(oEvent.detail)   
    var bDown = true;
    if ( ev.wheelDelta ) {
      bDown = ev.wheelDelta<0;
    }else {
      bDown = ev.detail>0;
    }    
    if ( !bDown ) {
      if ( checkFirst() ) return ;
      showId --;     
    }
    else {
      if ( checkLast() ) return ;
      showId ++;     
    }
    $("#content").attr("showId", showId);
    $("#footer ul li").children().removeClass("active").end().eq(showId).children().addClass("active");
    center(showId);
    if ( oEvent.preventDefault ) {
      oEvent.preventDefault();
    }
    return false;
  }
   
  myAddEvent(window, 'mousewheel', onMouseWheel);
  myAddEvent(window, 'DOMMouseScroll', onMouseWheel);
});

The above is all the content introduced to you in this article. I hope you will like it.

Statement:
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn