palantir/blueprint

Support for lazy loading tabs

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#4,669 建立於 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).

貢獻者指南

技術棧
reacttypescript
領域
frontend
議題類型
feature
難度面向新貢獻者的預計實作難度，1 表示很小改動，5 表示專家級工作。
3
預計時間有經驗貢獻者完成調查、實作、測試並準備 pull request 的粗略時間範圍。
half day
活動狀態議題目前的可參與程度：新鮮、活躍、陳舊、阻塞或等待維護者輸入。
stale
清晰度議題是否清楚說明預期改動、驗收標準和下一步。
clear
前置要求
React knowledgeBlueprint tabs componentlazy loading patterns
新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。
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.