jQuery Facebox : Sends empty input field value

Question

我的 jQuery 中有 Facebox 插件，可以为我制作灯箱。我创建了一个链接，您单击该链接，然后其中会出现一个好友请求表。

当点击“发送请求”时，表单会进行ajax调用，但是这两个字段不会发送您在其中写入的任何内容，它只是发送空值。

但如果它不在 Facebox Lightbox 内，那么它就会工作并在 ajax 调用中发送值。

因此，facebox.js 中的某些内容正在阻止这些字段并向它们发送空值。

我该如何解决这个问题？

这是facebox.js:

    (function($) {
  $.facebox = function(data, klass) {
    $.facebox.loading()

    if (data.ajax) fillFaceboxFromAjax(data.ajax)
    else if (data.image) fillFaceboxFromImage(data.image)
    else if (data.div) fillFaceboxFromHref(data.div)
    else if ($.isFunction(data)) data.call($)
    else $.facebox.reveal(data, klass)
  }

  /*
   * Public, $.facebox methods
   */

  $.extend($.facebox, {
    settings: {
      opacity      : 0,
      overlay      : true,
      loadingImage : 'images/loading.gif',
      closeImage   : 'images/closelabel.png',
      imageTypes   : [ 'png', 'jpg', 'jpeg', 'gif' ],
      faceboxHtml  : '\
    <div id="facebox" style="display:none;"> \
      <div class="popup"> \
        <table> \
          <tbody> \
            <tr> \
              <td class="tl"/><td class="b"/><td class="tr"/> \
            </tr> \
            <tr> \
              <td class="b"/> \
              <td class="body"> \
                <div class="content"> \
                </div> \
                <div class="footer"> \
                  <a href="#" class="close"> \
                    <img src="/facebox/closelabel.gif" title="close" class="close_image" /> \
                  </a> \
                </div> \
              </td> \
              <td class="b"/> \
            </tr> \
            <tr> \
              <td class="bl"/><td class="b"/><td class="br"/> \
            </tr> \
          </tbody> \
        </table> \
      </div> \
    </div>'
    },

    loading: function() {
      init()
      if ($('#facebox .loading').length == 1) return true
      showOverlay()

      $('#facebox .content').empty()
      $('#facebox .body').children().hide().end().
        append('<div class="loading"><img src="'+$.facebox.settings.loadingImage+'"/></div>')

      $('#facebox').css({
        top:    getPageScroll()[1] + (getPageHeight() / 10),
        left:   385.5
      }).show()

      $(document).bind('keydown.facebox', function(e) {
        if (e.keyCode == 27) $.facebox.close()
        return true
      })
      $(document).trigger('loading.facebox')
    },

    reveal: function(data, klass) {
      $(document).trigger('beforeReveal.facebox')
      if (klass) $('#facebox .content').addClass(klass)
      $('#facebox .content').append(data)
      $('#facebox .loading').remove()
      $('#facebox .body').children().fadeIn('normal')
      $('#facebox').css('left', $(window).width() / 2 - ($('#facebox table').width() / 2))
      $(document).trigger('reveal.facebox').trigger('afterReveal.facebox')
    },

    close: function() {
      $(document).trigger('close.facebox')
      return false
    }
  })

  /*
   * Public, $.fn methods
   */

  $.fn.facebox = function(settings) {
    init(settings)

    function clickHandler() {
      $.facebox.loading(true)

      // support for rel="facebox.inline_popup" syntax, to add a class
      // also supports deprecated "facebox[.inline_popup]" syntax
      var klass = this.rel.match(/facebox\[?\.(\w+)\]?/)
      if (klass) klass = klass[1]

      fillFaceboxFromHref(this.href, klass)
      return false
    }

    return this.click(clickHandler)
  }

  /*
   * Private methods
   */

  // called one time to setup facebox on this page
  function init(settings) {
    if ($.facebox.settings.inited) return true
    else $.facebox.settings.inited = true

    $(document).trigger('init.facebox')
    makeCompatible()

    var imageTypes = $.facebox.settings.imageTypes.join('|')
    $.facebox.settings.imageTypesRegexp = new RegExp('\.' + imageTypes + '$', 'i')

    if (settings) $.extend($.facebox.settings, settings)
    $('body').append($.facebox.settings.faceboxHtml)

    var preload = [ new Image(), new Image() ]
    preload[0].src = $.facebox.settings.closeImage
    preload[1].src = $.facebox.settings.loadingImage

    $('#facebox').find('.b:first, .bl, .br, .tl, .tr').each(function() {
      preload.push(new Image())
      preload.slice(-1).src = $(this).css('background-image').replace(/url\((.+)\)/, '$1')
    })

    $('#facebox .close').click($.facebox.close)
    $('#facebox .close_image').attr('src', $.facebox.settings.closeImage)
  }

  // getPageScroll() by quirksmode.com
  function getPageScroll() {
    var xScroll, yScroll;
    if (self.pageYOffset) {
      yScroll = self.pageYOffset;
      xScroll = self.pageXOffset;
    } else if (document.documentElement && document.documentElement.scrollTop) {     // Explorer 6 Strict
      yScroll = document.documentElement.scrollTop;
      xScroll = document.documentElement.scrollLeft;
    } else if (document.body) {// all other Explorers
      yScroll = document.body.scrollTop;
      xScroll = document.body.scrollLeft;   
    }
    return new Array(xScroll,yScroll) 
  }

  // Adapted from getPageSize() by quirksmode.com
  function getPageHeight() {
    var windowHeight
    if (self.innerHeight) { // all except Explorer
      windowHeight = self.innerHeight;
    } else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
      windowHeight = document.documentElement.clientHeight;
    } else if (document.body) { // other Explorers
      windowHeight = document.body.clientHeight;
    }   
    return windowHeight
  }

  // Backwards compatibility
  function makeCompatible() {
    var $s = $.facebox.settings

    $s.loadingImage = $s.loading_image || $s.loadingImage
    $s.closeImage = $s.close_image || $s.closeImage
    $s.imageTypes = $s.image_types || $s.imageTypes
    $s.faceboxHtml = $s.facebox_html || $s.faceboxHtml
  }

  // Figures out what you want to display and displays it
  // formats are:
  //     div: #id
  //   image: blah.extension
  //    ajax: anything else
  function fillFaceboxFromHref(href, klass) {
    // div
    if (href.match(/#/)) {
      var url    = window.location.href.split('#')[0]
      var target = href.replace(url,'')
      $.facebox.reveal($(target).clone().show(), klass)

    // image
    } else if (href.match($.facebox.settings.imageTypesRegexp)) {
      fillFaceboxFromImage(href, klass)
    // ajax
    } else {
      fillFaceboxFromAjax(href, klass)
    }
  }

  function fillFaceboxFromImage(href, klass) {
    var image = new Image()
    image.onload = function() {
      $.facebox.reveal('<div class="image"><img src="' + image.src + '" /></div>', klass)
    }
    image.src = href
  }

  function fillFaceboxFromAjax(href, klass) {
    $.get(href, function(data) { $.facebox.reveal(data, klass) })
  }

  function skipOverlay() {
    return $.facebox.settings.overlay == false || $.facebox.settings.opacity === null 
  }

  function showOverlay() {
    if (skipOverlay()) return

    if ($('facebox_overlay').length == 0) 
      $("body").append('<div id="facebox_overlay" class="facebox_hide"></div>')

    $('#facebox_overlay').hide().addClass("facebox_overlayBG")
      .css('opacity', $.facebox.settings.opacity)
      .click(function() { $(document).trigger('close.facebox') })
      .fadeIn(200)
    return false
  }

  function hideOverlay() {
    if (skipOverlay()) return

    $('#facebox_overlay').fadeOut(200, function(){
      $("#facebox_overlay").removeClass("facebox_overlayBG")
      $("#facebox_overlay").addClass("facebox_hide") 
      $("#facebox_overlay").remove()
    })

    return false
  }

  /*
   * Bindings
   */

  $(document).bind('close.facebox', function() {
    $(document).unbind('keydown.facebox')
    $('#facebox').fadeOut(function() {
      $('#facebox .content').removeClass().addClass('content')
      hideOverlay()
      $('#facebox .loading').remove()
    })
  })

})(jQuery);

这是我的表格，尽管我怀疑这里有什么问题，因为它可以在框外工作:

        <div id="addFriend" style="display: none;">
                <div style="float:right; font-size: 14px;">Add <strong><?php echo $showU["full_name"]; ?></strong> as friend </div>
                <div class="clearfloat"></div>

<form id="FriendRequest" action="javascript:DoFriendRequest(<?php echo $v["id"]; ?>, <? echo $showU["id"]; ?>)" method="post">

        <script type="text/javascript" charset="utf-8">
        $(document).ready(function(){
  $("label").inFieldLabels();
});
    </script> 
                <table align="center" width="auto" border="0" cellpadding="5" cellspacing="5" style="margin: auto;">
                <tr>
                <td style="padding: 10px;" align="center">
                Comment: </td><td>
                <span class="field">

                <input name="commentFriend" type="text" id="commentFriend" style="height: auto;"value="" size="22"> 
                </span>
                </td></tr><tr>
                <td style="padding: 10px;"  align="center">
                Message:
                </td><td> 
                <span class="field">

                <input name="messageFriend" type="text" id="messageFriend" value="" size="22">
                </span>
                </td>
                </tr>
                <tr>
                <td colspan="2" style="margin: auto; text-align: center;">
                <input name="submit" type="submit" id="submit" value="Send request">
                </td>
                </tr>

                <tr>
                                <td colspan="2" style="margin: auto; text-align: center;">
                </td>
                </tr>
                </table>
                </form>

                <div style="margin: auto; text-align: center; font-size: 16px; font-weight: bold;" id="insert_svar"></div>
    </div>

DoFriendRequest()

function DoFriendRequest(BuID, uID){
  $('#submit').attr('disabled', 'disabled');
  var wrapperId = '#insert_svar';
    $.ajax({ 
       type: "POST",
       url: "misc/AddFriendRequest.php",
    data: {
    mode: 'ajax',
    BuID : BuID,
    uID : uID, 
    message : $('#messageFriend').val(),
    comment : $('#commentFriend').val() 
    },
       success: function(msg){
       $('#submit').removeAttr('disabled');
     $(wrapperId).prepend(msg);
     $('#FriendRequest').fadeOut('slow'); 
     $('#message').val("");
     $('#comment').val("");
        }
     });
}

Answer 1

问题出在这一行:

$.facebox.reveal($(target).clone().show(), klass)

它正在克隆您的元素，特别是 id="messageFriend" 和 id="commentFriend"，这会导致问题，因为它们应该是独一无二的。 #ID selector正在查找仍为空的原始元素(克隆的元素具有您想要的值)。

为了解决这个问题，我会删除 id 属性并通过 name 找到它们......然后只找到 :visible那些，这将是当前打开的脸框，如下所示:

function DoFriendRequest(BuID, uID){
  $('#submit').attr('disabled', 'disabled');
  var wrapperId = '#insert_svar';
  $.ajax({ 
    type: "POST",
    url: "misc/AddFriendRequest.php",
    data: {
      mode: 'ajax',
      BuID : BuID,
      uID : uID, 
      message : $('input[name=messageFriend]:visible').val(),
      comment : $('input[name=commentFriend]:visible').val() 
    },
    success: function(msg){
      $('#submit').removeAttr('disabled');
      $(wrapperId).prepend(msg);
      $('#FriendRequest').fadeOut('slow'); 
      $('#message, #comment').val("");
    }
  });
}

You can try the updated version here ，看一下控制台，看看它现在确实正在提交值。