Mailspring/internal_packages/composer-templates/lib/template-editor.coffee
Drew Regitsky c91a0c6062 fix(templates): fix several bugs in templates plugin
Fixes behavior when there are no template files, prevents renaming/creating
with an empty name, fixes yet another way to accidentally make yellow text,
misc small style fixes
2016-01-12 12:44:38 -08:00

53 lines
2.6 KiB
CoffeeScript

{DOMUtils, ContenteditableExtension} = require 'nylas-exports'
class TemplateEditor extends ContenteditableExtension
@onContentChanged: ({editor}) ->
# Run through and remove all code nodes that are invalid
codeNodes = editor.rootNode.querySelectorAll("code.var.empty")
for codeNode in codeNodes
# remove any style that was added by contenteditable
codeNode.removeAttribute("style")
# grab the text content and the indexable text content
text = codeNode.textContent
indexText = DOMUtils.getIndexedTextContent(codeNode).map( ({text}) -> text ).join("")
# unwrap any code nodes that don't start/end with {{}}, and any with line breaks inside
if not text.startsWith("{{") or not text.endsWith("}}") or indexText.indexOf("\n")>-1
editor.whilePreservingSelection ->
DOMUtils.unwrapNode(codeNode)
# Attempt to sanitize extra nodes that may have been created by contenteditable on certain text editing
# operations (insertion/deletion of line breaks, etc.). These are generally <span>, but can also be
# <font>, <b>, and possibly others. The extra nodes often grab CSS styles from neighboring elements
# as inline style, including the yellow text from <code> nodes that we insert. This is contenteditable
# trying to be "smart" and preserve styles, which is very undesirable for the <code> node styles. The
# below code is a hack to prevent yellow text from appearing.
for node in editor.rootNode.querySelectorAll("*")
if not node.className and node.style.color == "#c79b11"
editor.whilePreservingSelection ->
DOMUtils.unwrapNode(node)
for node in editor.rootNode.querySelectorAll("font")
if node.color == "#c79b11"
editor.whilePreservingSelection ->
DOMUtils.unwrapNode(node)
# Find all {{}} and wrap them in code nodes if they aren't already
# Regex finds any {{ <contents> }} that doesn't contain {, }, or \n
# https://regex101.com/r/jF2oF4/1
ranges = editor.regExpSelectorAll(/\{\{[^\n{}]*?\}\}/g)
for range in ranges
if not DOMUtils.isWrapped(range, "CODE")
# Preserve the selection based on text index within the range matched by the regex
selIndex = editor.getSelectionTextIndex(range)
codeNode = DOMUtils.wrap(range,"CODE")
codeNode.className = "var empty"
codeNode.textContent = codeNode.textContent # Sets node contents to just its textContent, strips HTML
if selIndex?
editor.restoreSelectionByTextIndex(codeNode, selIndex.startIndex, selIndex.endIndex)
module.exports = TemplateEditor