Mailspring/internal_packages/composer/lib/clipboard-service.coffee
Evan Morikawa b50d488f2e refactor(composer): update contenteditable functionality
Summary:
Fixes T3510
Fixes T3509
Fixes T3508
Fixes T3549

Extracted clipboard service

Remove unused style prop

Begin extracting quoted text from composer. Spec for clipboard service

Fix contenteditable specs

Begin to extract floating toolbar

Extract out DOMUtils and further extract floating toolbar

Further extracting domutils and floating toolbar

composer floating toolbar extracted

Fixes to hover and link states

Collapse adjacent ul lists

Fix outdent when deleting on a bulleted list

Fix bullet controls

Fixes to list creation and deletion

Add underline keyboard shortcut

Test Plan: manual :(

Reviewers: dillon, bengotow

Reviewed By: bengotow

Maniphest Tasks: T3508, T3509, T3510, T3549

Differential Revision: https://phab.nylas.com/D2036
2015-09-22 16:02:44 -07:00

91 lines
3.2 KiB
CoffeeScript

{Utils} = require 'nylas-exports'
sanitizeHtml = require 'sanitize-html'
class ClipboardService
constructor: ({@onFilePaste}={}) ->
onPaste: (evt) =>
return if evt.clipboardData.items.length is 0
evt.preventDefault()
# If the pasteboard has a file on it, stream it to a teporary
# file and fire our `onFilePaste` event.
item = evt.clipboardData.items[0]
if item.kind is 'file'
blob = item.getAsFile()
ext = {'image/png': '.png', 'image/jpg': '.jpg', 'image/tiff': '.tiff'}[item.type] ? ''
temp = require 'temp'
path = require 'path'
fs = require 'fs'
reader = new FileReader()
reader.addEventListener 'loadend', =>
buffer = new Buffer(new Uint8Array(reader.result))
tmpFolder = temp.path('-nylas-attachment')
tmpPath = path.join(tmpFolder, "Pasted File#{ext}")
fs.mkdir tmpFolder, =>
fs.writeFile tmpPath, buffer, (err) =>
@onFilePaste?(tmpPath)
reader.readAsArrayBuffer(blob)
else
# Look for text/html in any of the clipboard items and fall
# back to text/plain.
inputText = evt.clipboardData.getData("text/html") ? ""
type = "text/html"
if inputText.length is 0
inputText = evt.clipboardData.getData("text/plain") ? ""
type = "text/plain"
if inputText.length > 0
cleanHtml = @_sanitizeInput(inputText, type)
document.execCommand("insertHTML", false, cleanHtml)
return
# This is used primarily when pasting text in
_sanitizeInput: (inputText="", type="text/html") =>
if type is "text/plain"
inputText = Utils.encodeHTMLEntities(inputText)
inputText = inputText.replace(/[\r\n]|&#1[03];/g, "<br/>").
replace(/\s\s/g, " &nbsp;")
else
inputText = sanitizeHtml inputText.replace(/[\n\r]/g, "<br/>"),
allowedTags: ['p', 'b', 'i', 'em', 'strong', 'a', 'br', 'img', 'ul', 'ol', 'li', 'strike']
allowedAttributes:
a: ['href', 'name']
img: ['src', 'alt']
transformTags:
h1: "p"
h2: "p"
h3: "p"
h4: "p"
h5: "p"
h6: "p"
div: "p"
pre: "p"
blockquote: "p"
table: "p"
# We sanitized everything and convert all whitespace-inducing
# elements into <p> tags. We want to de-wrap <p> tags and replace
# with two line breaks instead.
inputText = inputText.replace(/<p[\s\S]*?>/gim, "").
replace(/<\/p>/gi, "<br/>")
# We never want more then 2 line breaks in a row.
# https://regex101.com/r/gF6bF4/4
inputText = inputText.replace(/(<br\s*\/?>\s*){3,}/g, "<br/><br/>")
# We never want to keep leading and trailing <brs>, since the user
# would have started a new paragraph themselves if they wanted space
# before what they paste.
# BAD: "<p>begins at<br>12AM</p>" => "<br><br>begins at<br>12AM<br><br>"
# Better: "<p>begins at<br>12AM</p>" => "begins at<br>12"
inputText = inputText.replace(/^(<br ?\/>)+/, '')
inputText = inputText.replace(/(<br ?\/>)+$/, '')
return inputText
module.exports = ClipboardService