casesandberg/react-color

EditableInput: Increment on Drag

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#8 创建于 2015年8月17日

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 (4 评论) (1 反应) (0 负责人)JavaScript (11,679 star) (946 fork)batch import
help wanted

描述

The text input fields could be draggable, as with applications like After Effects.

  • On :hover, a east-west cursor is shown (north-south if more appropriate for the given layout).
  • On drag originating from the field, the value is modified by +/-1 at an interval that scales with the vector's magnitude. On account of typical input precision, the rate should be slow (1 per 500ms?) for a generous margin near the field (estimated: first 8-10px).
  • On mouseup, the timeout is cancelled so as to not increment after gesture ends.
  • It may be necessary to lock out text-selection until mouseup (or focus) inside the field. Many apps that support this have an edit state to resolve these conflicting interactions.

贡献者指南

技术栈
javascriptreacthtmlcss
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。
1-2 days
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
ReactDOM eventssetTimeout
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。
65
研究方向
Examine the EditableInput component in src/components/editable/EditableInput.js (or similar). Understand current value update mechanism via onChange. Implement mouse event handlers for mousedown, mousemove, mouseup. Use setTimeout to increment value at intervals based on drag distance. Ensure to cancel timeout on mouseup. Test with a simple color number field. Consider if input should be a number or text. The issue is old; verify the component is still used in the latest code.