Keyboard-driven method for reordering rows

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调研方向

首先定位可拖拽选择器和现有的行位置计算,然后确定鼠标或拖拽开始/结束逻辑如何与更改行顺序分离。完成标准是:重新排序控件可以通过键盘获得焦点,并支持约定的键盘快捷键,而不依赖 X/Y 坐标,同时具有等效的行重新排序行为。

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描述

This idea was brought up before:

          It would also be massively useful when trying to provide a keyboard-driven alternative method for reordering rows, for use by the vision-impaired or others with special needs.

Originally posted by @QuixoteOne in https://github.com/DataTables/RowReorder/issues/10#issuecomment-275780532

We want to provide row reordering functionality for our users, but if it doesn't work via the keyboard, we wouldn't be able to provide an equitable experience for our users. It would also open us up to legal concerns.

As far as implementation:

  • The draggable selector needs to be focusable
  • A keyboard shortcut that is already popular for manual sorting (for example, Google Tasks seems to use Ctrl-UpArrow and Ctrl-DownArrow)
  • Optional: For the keyboard, the position calculations shouldn't need to use X/Y coordinates. Thus, it may be good to segment the existing code such that the "where did the mouse/drag start/end" code that calculates the old and new positions is separate from the "change row position" code.

Thank you for considering this request! ❤️

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