jQuery 似乎同时运行多个调用

发布于 2024-10-05 22:01:55 字数 1247 浏览 2 评论 0原文

抱歉,但显然我对链接的理解不足以解决这个问题...

我正在实现一个 jQuery 轮播插件(jCarouselLite),并且我正在尝试添加一个选项来“删除”其中一个轮播项目(目前

)...

initEvents: function() {
        var self = this;
        // Bind jQuery event for REMOVE button click
        $('.remove').live('click', function() {     
            // Need to save the ID that we're removing
            var item = $(this).closest('li.sort');
            var itemId = item.attr("id");

            $(this).removeItem();

            self.refreshDisplay(itemId);
        }); 


 $.fn.removeItem = (function() {
  var item = this.closest('li.sort'); // could save this call by passing param

  item.fadeOut("normal", function() {
         $(this).remove();
      });

   // preserve jQuery chain
   return this;
 });
},

refreshDisplay(itemId) {
  // ...
  // redraws carousel
  // ...
  // itemId is used to remove from the array of Items to show (class-wide scope)
}

由于没有干净的方法来“刷新”jCarouselLite 插件(也许我稍后会尝试在实际插件中实现)快速且对此的肮脏修复是重新生成轮播。

问题是我试图淡出单击的元素,但是,似乎在淡出(并删除)单击的项目的动画完成之前调用了刷新显示()。我已经通过注释掉 self.refreshDisplay(itemId); 行来验证这一点,它会按预期淡出并删除。

所以我想我需要某种方式来链接它?我已经阅读了几个小时关于链接如何工作的内容,我认为我理解它,但显然没有。

感谢任何和所有的帮助,谢谢!

Sorry, but apparently I don't understand chaining enough to figure out this problem...

I'm implementing a jQuery carousel plugin (jCarouselLite) and I'm trying to add an option to 'remove' one of the carousel items (currently <div class="remove">)...

initEvents: function() {
        var self = this;
        // Bind jQuery event for REMOVE button click
        $('.remove').live('click', function() {     
            // Need to save the ID that we're removing
            var item = $(this).closest('li.sort');
            var itemId = item.attr("id");

            $(this).removeItem();

            self.refreshDisplay(itemId);
        }); 


 $.fn.removeItem = (function() {
  var item = this.closest('li.sort'); // could save this call by passing param

  item.fadeOut("normal", function() {
         $(this).remove();
      });

   // preserve jQuery chain
   return this;
 });
},

refreshDisplay(itemId) {
  // ...
  // redraws carousel
  // ...
  // itemId is used to remove from the array of Items to show (class-wide scope)
}

Since there's no clean way to 'refresh' the jCarouselLite plugin (maybe something I'll try implementing in the actual plugin later) the quick and dirty fix for this is to just regenerate the Carousel.

The issue is I'm trying to fade out the element clicked, however, it seems like the refreshDisplay() is called before the animation of fading out (and removing) the clicked item is completed. I've verified this by commenting out the self.refreshDisplay(itemId); line and it fades out and removes as expected.

So I guess there's a certain way I need to chain this? I've done a couple hours of reading on how chaining works and I thought I understood it, but apparently not.

Any and all help is appreciated, thanks!

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怪我太投入 2024-10-12 22:01:55

链接的目的是允许多个命令共享一个基础对象,但不会导致每个命令都等待前一个命令。

为此,您需要使用回调。像这样的东西

initEvents: function() {
        var self = this;
        // Bind jQuery event for REMOVE button click
        $('.remove').live('click', function() {     
            // Need to save the ID that we're removing
            var item = $(this).closest('li.sort');
            var itemId = item.attr("id");

            $(this).removeItem(function() {
                self.refreshDisplay(itemId);
            });
        }); 


 $.fn.removeItem = (function(callback) {
  var item = this.closest('li.sort'); // could save this call by passing param

  item.fadeOut("normal", function() {
         $(this).remove();
         callback();  //now your refresh is being called after the fade.
      });

   // preserve jQuery chain
   return this;
 });
},

The purpose of chaining is to allow multiple commands to share a base object, but it doesn't cause each command to wait for the previous one.

For that, you need to use a callback. Something like

initEvents: function() {
        var self = this;
        // Bind jQuery event for REMOVE button click
        $('.remove').live('click', function() {     
            // Need to save the ID that we're removing
            var item = $(this).closest('li.sort');
            var itemId = item.attr("id");

            $(this).removeItem(function() {
                self.refreshDisplay(itemId);
            });
        }); 


 $.fn.removeItem = (function(callback) {
  var item = this.closest('li.sort'); // could save this call by passing param

  item.fadeOut("normal", function() {
         $(this).remove();
         callback();  //now your refresh is being called after the fade.
      });

   // preserve jQuery chain
   return this;
 });
},
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