mirror of
https://github.com/overleaf/overleaf.git
synced 2024-11-30 12:24:16 -05:00
77 lines
2.4 KiB
CoffeeScript
77 lines
2.4 KiB
CoffeeScript
define [
|
|
"auto-complete/SuggestionManager"
|
|
"auto-complete/Snippets"
|
|
"ace/autocomplete/util"
|
|
"ace/autocomplete"
|
|
"ace/range"
|
|
"ace/ext/language_tools"
|
|
], (SuggestionManager, Snippets, Util, AutoComplete) ->
|
|
Range = require("ace/range").Range
|
|
Autocomplete = AutoComplete.Autocomplete
|
|
|
|
Util.retrievePrecedingIdentifier = (text, pos, regex) ->
|
|
currentLineOffset = 0
|
|
for i in [(pos-1)..0]
|
|
if text[i] == "\n"
|
|
currentLineOffset = i + 1
|
|
break
|
|
currentLine = text.slice(currentLineOffset, pos)
|
|
fragment = getLastCommandFragment(currentLine) or ""
|
|
return fragment
|
|
|
|
getLastCommandFragment = (lineUpToCursor) ->
|
|
if m = lineUpToCursor.match(/(\\[^\\ ]+)$/)
|
|
return m[1]
|
|
else
|
|
return null
|
|
|
|
class AutoCompleteManager
|
|
constructor: (@ide) ->
|
|
@aceEditor = @ide.editor.aceEditor
|
|
@aceEditor.setOptions({
|
|
enableBasicAutocompletion: true,
|
|
enableSnippets: true
|
|
})
|
|
|
|
SnippetCompleter =
|
|
getCompletions: (editor, session, pos, prefix, callback) ->
|
|
callback null, Snippets
|
|
@suggestionManager = new SuggestionManager()
|
|
|
|
@aceEditor.completers = [@suggestionManager, SnippetCompleter]
|
|
|
|
insertMatch = Autocomplete::insertMatch
|
|
editor = @aceEditor
|
|
Autocomplete::insertMatch = (data) ->
|
|
pos = editor.getCursorPosition()
|
|
range = new Range(pos.row, pos.column, pos.row, pos.column + 1)
|
|
nextChar = editor.session.getTextRange(range)
|
|
|
|
# If we are in \begin{it|}, then we need to remove the trailing }
|
|
# since it will be adding in with the autocomplete of \begin{item}...
|
|
if this.completions.filterText.match(/^\\begin\{/) and nextChar == "}"
|
|
editor.session.remove(range)
|
|
|
|
insertMatch.call editor.completer, data
|
|
|
|
@bindToEditorEvents()
|
|
|
|
bindToEditorEvents: () ->
|
|
@ide.editor.on "change:doc", (@aceSession) =>
|
|
@aceSession.on "change", (change) => @onChange(change)
|
|
|
|
onChange: (change) ->
|
|
cursorPosition = @aceEditor.getCursorPosition()
|
|
end = change.data.range.end
|
|
# Check that this change was made by us, not a collaborator
|
|
# (Cursor is still one place behind)
|
|
if end.row == cursorPosition.row and end.column == cursorPosition.column + 1
|
|
if change.data.action == "insertText"
|
|
range = new Range(end.row, 0, end.row, end.column)
|
|
lineUpToCursor = @aceSession.getTextRange(range)
|
|
commandFragment = getLastCommandFragment(lineUpToCursor)
|
|
|
|
if commandFragment? and commandFragment.length > 2
|
|
setTimeout () =>
|
|
@aceEditor.execCommand("startAutocomplete")
|
|
, 0
|