Mailspring/internal_packages/composer-markdown/lib/markdown-editor.cjsx
2016-09-01 16:52:55 -07:00

92 lines
2.7 KiB
CoffeeScript

Utils = require './utils'
SimpleMDE = require 'simplemde'
nylas = require 'nylas-exports'
React = nylas.React
ReactDOM = nylas.ReactDOM
# Keep a file-scope variable containing the contents of the markdown stylesheet.
# This will be embedded in the markdown preview iFrame, as well as the email body.
# The stylesheet is loaded when a preview component is first mounted.
markdownStylesheet = null
class MarkdownEditor extends React.Component
@displayName: 'MarkdownEditor'
@containerRequired: false
@contextTypes:
parentTabGroup: React.PropTypes.object,
@propTypes:
body: React.PropTypes.string.isRequired,
onBodyChanged: React.PropTypes.func.isRequired,
componentDidMount: =>
textarea = ReactDOM.findDOMNode(@refs.textarea)
@mde = new SimpleMDE(
element: textarea,
hideIcons: ['fullscreen', 'side-by-side']
showIcons: ['code', 'table']
)
@mde.codemirror.on "change", @_onBodyChanged
@mde.codemirror.on "keydown", @_onKeyDown
@mde.value(Utils.getTextFromHtml(@props.body))
@focus()
componentWillReceiveProps: (newProps) =>
currentText = Utils.getTextFromHtml(@props.body)
if @props.body isnt newProps.body and currentText.length is 0
@mde.value(Utils.getTextFromHtml(newProps.body))
focus: =>
@mde.codemirror.focus()
focusAbsoluteEnd: =>
@focus()
@mde.codemirror.execCommand('goDocEnd')
getCurrentSelection: ->
getPreviousSelection: ->
setSelection: ->
_onDOMMutated: ->
_onBodyChanged: =>
setImmediate =>
@props.onBodyChanged(target: {value: @mde.value()})
_onKeyDown: (codemirror, e)=>
if e.key is 'Tab' and e.shiftKey is true
position = codemirror.cursorCoords(true, 'local')
isAtBeginning = position.top <= 5 and position.left <= 5
if isAtBeginning
# TODO i'm /really/ sorry
# Subject is at position 2 within the tab group, the focused text area
# in this component is at position 17, so that's why we shift back 15
# positions.
# This will break if the dom elements between here and the subject ever
# change
@context.parentTabGroup.shiftFocus(-15)
e.preventDefault()
e.codemirrorIgnore = true
render: ->
# TODO sorry
# Add style tag to disable incompatible plugins
<div tabIndex="1" className="markdown-editor" onFocus={@focus}>
<style>
{".btn-mail-merge { display:none; }"}
{".btn-emoji { display:none; }"}
{".btn-templates { display:none; }"}
{".btn-scheduler { display:none; }"}
{".btn-translate { display:none; }"}
</style>
<textarea
ref="textarea"
className="editing-region"
/>
</div>
module.exports = MarkdownEditor