Ember.js + jQuery UI可拆分克隆 [英] Ember.js + jQuery UI Draggable Clone
问题描述
我正在尝试使用Ember.js和jQuery UI的可拖动功能,但我遇到问题。具体来说,当使用克隆帮助者时,我无法删除元素和所有内容是非常滞后。如果我不使用克隆帮助器,一切都会按预期方式工作。
I am trying to use Ember.js in conjunction with jQuery UI's draggable functionality, but I am encountering problems. Specifically, when using the clone helper, I am not able to drop the element and everything is extremely laggy. If I don't use the clone helper, everything works as expected.
我怀疑这与jQuery UI克隆html有关,包括所有的metamorph脚本标签用于绑定)。
I suspect this is related to jQuery UI cloning the html, including all of the metamorph script tags (used for binding).
当我拖动它时,我不需要更新元素。有没有办法剥离绑定标签与ember?
I don't need to update the element live while I am dragging it. Is there a way to strip binding tags with ember?
为了参考,这里是视图逻辑:
For reference, here is the view logic:
didInsertElement: ->
@_super()
@$().draggable
cursor: 'hand'
helper: 'clone'
opacity: 0.75
scope: @draggableScope
@$().droppable
activeClass: 'dropActive'
hoverClass: 'dropHover'
drop: @createMatch
scope: @droppableScope
我的第一个想法是尝试使用 beginPropertyChanges
和 endPropertyChanges
,以防止意外行为。这似乎不起作用,也不理想,因为我希望其他绑定更新。以下是我尝试过的修改后的代码:
My first thought was to try and use a beginPropertyChanges
and endPropertyChanges
during the drag to prevent an unexpected behavior. This doesn't seem to work nor is it ideal as I would like other bindings to update. Here is the revised code where I attempted this:
didInsertElement: ->
@_super()
@$().draggable
cursor: 'hand'
helper: 'clone'
opacity: 0.75
scope: @draggableScope
start: ->
Ember.beginPropertyChanges()
stop: ->
Ember.endPropertyChanges()
@$().droppable
activeClass: 'dropActive'
hoverClass: 'dropHover'
drop: @createMatch
scope: @droppableScope
任何帮助将不胜感激。
推荐答案
我通过手动剥离所有ember相关的元数据来实现这一点。这是一个小的jquery插件,我鞭打:
I got this working by stripping all ember related metadata manually. Here is a small jquery plugin I whipped up:
# Small extension to create a clone of the element without
# metamorph binding tags and ember metadata
$.fn.extend
safeClone: ->
clone = $(@).clone()
# remove content bindings
clone.find('script[id^=metamorph]').remove()
# remove attr bindings
clone.find('*').each ->
$this = $(@)
$.each $this[0].attributes, (index, attr) ->
return if attr.name.indexOf('data-bindattr') == -1
$this.removeAttr(attr.name)
# remove ember IDs
clone.find('[id^=ember]').removeAttr('id')
clone
要使其正常工作,只需设置助手,如下所示:
To get it to work, just set the helper as follow:
helper: ->
$this.safeClone()
这篇关于Ember.js + jQuery UI可拆分克隆的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!