== Candidate List == In Fcitx 5, a candidate list is a part of the InputPanel class, stored as shared_ptr to avoid life time issue when selecting candidate triggers the User interface update. There's different capability provided by candidate list via certain interfaces. The helper class [https://codedocs.xyz/fcitx/fcitx5/classfcitx_1_1CommonCandidateList.html CommonCandidateList] would provide most common functionality for a candidate list. It implements BulkCandidateList interface, and that is why it is not suitable for Quwei case. Because we want to have a semi-infinite candidate list for Quwei.
在 Fcitx 5 中，候选列表是 InputPanel 类的一部分，存储为 shared_ptr 以避免选择候选触发用户界面更新时的生命周期问题。候选列表通过某些接口提供了不同的功能。辅助类 CommonCandidateList 将为候选列表提供最常用的功能。它实现了 BulkCandidateList 接口，这就是为什么它不适合去中心化的情况。因为我们要有一个曲尾的半无限候选列表。