luci-app-shadowsocks-libev: servers page broken in latest luci

@jow- @yousong The “Remote Servers” page is broken in new version of luci, showing “TypeError Cannot read property ‘id’ of undefined”. I found it’s because UIDropdown.__init__ is not called, which is caused by super function. https://github.com/openwrt/luci/blob/1df1421221a2e22334668e6c5524fc359f21d32d/modules/luci-base/htdocs/luci-static/resources/luci.js#L267-L291 I don’t know why superContext is not a local veriable. Because of this, superContext remains LuCI.View when UIDropdown.__init__ is called. So __init__ is not found and not called.

[jow-]

@yousong - thanks for the suggestion. I opted for a different approach in the end which was easier for me to wrap my head around.

[yousong]

@jow- Likely it’s not enough and a stack-like structure is required.

Let’s consider the following case. The 2nd and 3rd super('render') calls are at the same level. Context will be cleared on return from 2nd call, causing the 3rd call starting from scratch invoking method of child class.

obj.super('render')
  obj.super('render')
  obj.super('render')