我使用“draggable_element”来拖动项目，使用“drop_receiving_element”作为可投放容器。但由于视图上的图像数量，我的页面有点长。
当我从页面底部拖动图像并将其移动到可放置区域时，它不会在那里掉落并恢复到实际位置。当我将拖动图像移动到可放置区域下方一定距离时，它会突出显示可放置区域。所以我认为可放置区域是固定在窗口，因为它不随容器一起移动。这是我的代码。
<%= draggable_element "#{property.main_image.dom_id('main')}", :revert => true %>
<div id="img_<%= property.main_image.id %>" style="display: none"><%= image_tag property.main_image.image_url(600), :onload => 'RedBox.setWindowPosition()' %></div>
<div id="images_wastebin" class="wastebin">
<p>Remove images by dragging them into the trashcan, and emptying it.</p>
<img id="images_trashcan_empty" src="/images/gui/trashcan_empty.png" />
<img id="images_trashcan_full" src="/images/gui/trashcan_full.png" style="display:none"></div>
<%= drop_receiving_element "images_wastebin", :accept => "droppable", :hoverclass => "wastebin-active", :before => "imagesTrashcan.addToTrash(element)" %>
任何人都可以帮助我，谢谢