Mailspring/examples/N1-Composer-Templates/lib/template-draft-extension.coffee

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{DraftStoreExtension} = require 'nylas-exports'
class TemplatesDraftStoreExtension extends DraftStoreExtension
@warningsForSending: (draft) ->
warnings = []
if draft.body.search(/<code[^>]*empty[^>]*>/i) > 0
warnings.push("with an empty template area")
warnings
@finalizeSessionBeforeSending: (session) ->
body = session.draft().body
clean = body.replace(/<\/?code[^>]*>/g, '')
if body != clean
session.changes.add(body: clean)
@onMouseUp: (editableNode, range, event) ->
parent = range.startContainer?.parentNode
parentCodeNode = null
while parent and parent isnt editableNode
if parent.classList?.contains('var') and parent.tagName is 'CODE'
parentCodeNode = parent
break
parent = parent.parentNode
isSinglePoint = range.startContainer is range.endContainer and range.startOffset is range.endOffset
if isSinglePoint and parentCodeNode
range.selectNode(parentCodeNode)
selection = document.getSelection()
selection.removeAllRanges()
selection.addRange(range)
@onTabDown: (editableNode, range, event) ->
if event.shiftKey
@onTabSelectNextVar(editableNode, range, event, -1)
else
@onTabSelectNextVar(editableNode, range, event, 1)
@onTabSelectNextVar: (editableNode, range, event, delta) ->
return unless range
# Try to find the node that the selection range is
# currently intersecting with (inside, or around)
parentCodeNode = null
nodes = editableNode.querySelectorAll('code.var')
for node in nodes
if range.intersectsNode(node)
parentCodeNode = node
if parentCodeNode
if range.startOffset is range.endOffset and parentCodeNode.classList.contains('empty')
# If the current node is empty and it's a single insertion point,
# select the current node rather than advancing to the next node
selectNode = parentCodeNode
else
# advance to the next code node
matches = editableNode.querySelectorAll('code.var')
matchIndex = -1
for match, idx in matches
if match is parentCodeNode
matchIndex = idx
break
if matchIndex != -1 and matchIndex + delta >= 0 and matchIndex + delta < matches.length
selectNode = matches[matchIndex+delta]
if selectNode
range.selectNode(selectNode)
selection = document.getSelection()
selection.removeAllRanges()
selection.addRange(range)
event.preventDefault()
event.stopPropagation()
@onInput: (editableNode, event) ->
selection = document.getSelection()
isWithinNode = (node) ->
test = selection.baseNode
while test isnt editableNode
return true if test is node
test = test.parentNode
return false
codeTags = editableNode.querySelectorAll('code.var.empty')
for codeTag in codeTags
if selection.containsNode(codeTag) or isWithinNode(codeTag)
codeTag.classList.remove('empty')
module.exports = TemplatesDraftStoreExtension