• Please commit to the dev branch
• For contributing new features, please supplement and improve the corresponding user guide documents

插件 API addTab 中的 init 等方法的 this 指向的是一个 Custom 对象, 该对象在初始化时传入的 tab 参数由于没有挂载到对象属性中作为上下文, 因此插件无法对其打开的页签进行控制(例如更新标题, 钉住/取消钉住)
The this of methods such as init in the plugin API addTab points to a Custom object, and the tab parameter passed in when the object is initialized is not mounted into the object properties as a context, so the plugin cannot control the tabs it opens (e.g. update title, pin/unpin)

本次提交将页签对象添加到 init 方法的上下文中
This commit adds the tab object to the context of the init method.