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29 lines
795 B
CoffeeScript
29 lines
795 B
CoffeeScript
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define [], () ->
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AceShareJsCodec =
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aceRangeToShareJs: (range, lines) ->
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offset = 0
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for line, i in lines
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offset += if i < range.row
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line.length
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else
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range.column
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offset += range.row # Include newlines
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return offset
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aceChangeToShareJs: (delta, lines) ->
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offset = AceShareJsCodec.aceRangeToShareJs(delta.start, lines)
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text = delta.lines.join('\n')
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switch delta.action
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when 'insert'
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return { i: text, p: offset }
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when 'remove'
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return { d: text, p: offset }
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else throw new Error "unknown action: #{delta.action}"
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shareJsOffsetToAcePosition: (offset, lines) ->
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row = 0
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for line, row in lines
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break if offset <= line.length
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offset -= lines[row].length + 1 # + 1 for newline char
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return {row:row, column:offset}
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