palantir/blueprint

Support for lazy loading tabs

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#4,669 创建于 2021年4月22日

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P2Package: coreType: feature requesthelp wanted

描述

There is support for renderActiveTabPanelOnly but not something in between: Do not unmount any tabs, but only mount tabs after they are clicked on instead of all at initial load.

This is the default behavior in some libraries (eg. https://ant.design/components/tabs/, it can still overwrite default behavior with forceRender prop).

贡献者指南

技术栈
reacttypescript
领域
frontend
议题类型
feature
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
3
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
half day
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
stale
清晰度议题是否清楚说明期望改动、验收标准和下一步。
clear
前置要求
React knowledgeBlueprint tabs componentlazy loading patterns
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
60
研究方向
The issue requests a new prop for lazy loading tabs, building on the existing `renderActiveTabPanelOnly` prop. The implementer should examine the Tabs component source code in `src/components/tabs` to understand the current rendering logic. A possible approach is to use React's `useState` and `useEffect` to mount tab panels only upon first activation. The behavior should mimic the default in Ant Design's Tabs component, with an optional `forceRender` prop. No linked PRs or comments exist, so the implementer can propose a solution in a new PR.