slate-code-block
A Slate plugin to handle code block editing. This is a fork from GitbookIO/slate-edit-code, see why.
Install
npm install slate-code-block
Features
- Pressing Enter insert a new line starting with the right indentation
- Pressing Tab insert the right indentation if selection is collapsed or indent all lines in selection
- Pressing Delete remove the indentation before cursor if possible
- Pressing Mod+Enter exits the code block
- Pressing Mod+A selects all the text in the block
Mod means Ctrl on Windows/Linux and Command on Mac.
Structure
This plugin uses the following structure for code blocks:
A code block is made of several code lines
Texts inside code_blocks
that contain newlines \n
are automatically split into the appropriate number of code_lines
.
Simple Usage
const plugins =
Options arguments
containerType = 'code_block' : string
— The type of the code containerslineType = 'code_line' : string
— The type of the code linesexitBlockType = 'paragraph' : null | string
— Mod+Enter will exit the code container, into the given block type. Backspace at start of an empty code container will convert it to the given block type. Passnull
to disable this behavior.onExit: (Change) => void | Change
— Change to do when the user hits Mod+Enter. Defaults to exiting the code block, into a newexitBlockType
block.selectAll = true : boolean
— True to select all code inside a code container on Mod+AallowMarks = false : boolean
— False disallow marks in code blocks by normalizing them away.getIndent: (Value) => string
— Returns the indent unit as a string. The current value is passed as context.
Suppressing onKeyDown behavior
Some behavior implemented by this plugins have no corresponding option. While there is an option selectAll
to disable the behavior on Mod+A
, If you would like to fine tune these behavior, you can always redefine the exported onKeyDown
function.
The following example disable all indent behavior
const options = ... ; const basePlugin = ; const customPlugin = ...basePlugin { if eventkey === 'Tab' // Bypass the original plugin behavior on `Tab` return; else return basePlugin; } // Use customPlugin later on
Utilities and Changes
slate-code-block
exports utilities, accessible like so:
const plugin =// Access exported utilities therepluginutils
utils.deserializeCode
plugin.utils.deserializeCode(text: String) => Block
Split a text string into lines, and deserialize them to a code_container
Block
, with one children code_line
Block
per line.
changes.toggleCodeBlock
plugin.changes.toggleCodeBlock(change: Change, type: String) => Change
Toggle a block into a code block or a normal block (defined by type
).
changes.wrapCodeBlockByKey
plugin.changes.wrapCodeBlockByKey(change: Change, key: String) => Change
Convert a block (paragraph, etc) into a code block.
changes.wrapCodeBlock
plugin.changes.wrapCodeBlock(change: Change) => Change
Convert current block (paragraph, etc) into a code block.
changes.unwrapCodeBlockByKey
plugin.changes.unwrapCodeBlockByKey(change: Change, key: String, type: String) => Change
Convert a code block into a normal block (paragraph, etc).
changes.unwrapCodeBlock
plugin.changes.unwrapCodeBlock(change: Change, type: String) => Change
Convert current code block into a normal block (paragraph, etc).