overleaf/services/web/public/coffee/spelling/HighlightedWordManager.coffee

147 lines
4.6 KiB
CoffeeScript
Raw Normal View History

2014-02-12 05:23:40 -05:00
define () ->
class Highlight
constructor: (options) ->
@row = options.row
@column = options.column
@word = options.word
@suggestions = options.suggestions
class HighlightedWordManager
constructor: (@ide) ->
@highlights = rows: []
addHighlight: (highlight) ->
unless highlight instanceof Highlight
highlight = new Highlight(highlight)
highlight.markerId = @ide.editor.addMarker {
row: highlight.row
column: highlight.column
length: highlight.word.length
}, "sharelatex-spelling-highlight"
@highlights.rows[highlight.row] ||= []
@highlights.rows[highlight.row].push highlight
removeHighlight: (highlight) ->
@ide.editor.removeMarker(highlight.markerId)
for h, i in @highlights.rows[highlight.row]
if h == highlight
@highlights.rows[highlight.row].splice(i, 1)
removeWord: (word) ->
toRemove = []
for row in @highlights.rows
for highlight in (row || [])
if highlight.word == word
toRemove.push(highlight)
for highlight in toRemove
@removeHighlight highlight
moveHighlight: (highlight, position) ->
@removeHighlight highlight
highlight.row = position.row
highlight.column = position.column
@addHighlight highlight
clearRows: (from, to) ->
from ||= 0
to ||= @highlights.rows.length - 1
for row in @highlights.rows.slice(from, to + 1)
for highlight in (row || []).slice(0)
@removeHighlight highlight
insertRows: (offset, number) ->
# rows are inserted after offset. i.e. offset row is not modified
affectedHighlights = []
for row in @highlights.rows.slice(offset)
affectedHighlights.push(highlight) for highlight in (row || [])
for highlight in affectedHighlights
@moveHighlight highlight,
row: highlight.row + number
column: highlight.column
removeRows: (offset, number) ->
# offset is the first row to delete
affectedHighlights = []
for row in @highlights.rows.slice(offset)
affectedHighlights.push(highlight) for highlight in (row || [])
for highlight in affectedHighlights
if highlight.row >= offset + number
@moveHighlight highlight,
row: highlight.row - number
column: highlight.column
else
@removeHighlight highlight
findHighlightWithinRange: (range) ->
rows = @highlights.rows.slice(range.start.row, range.end.row + 1)
for row in rows
for highlight in (row || [])
if @_doesHighlightOverlapRange(highlight, range.start, range.end)
return highlight
return null
applyChange: (change) ->
start = change.range.start
end = change.range.end
if change.action == "insertText"
if start.row != end.row
rowsAdded = end.row - start.row
@insertRows start.row + 1, rowsAdded
# make a copy since we're going to modify in place
oldHighlights = (@highlights.rows[start.row] || []).slice(0)
for highlight in oldHighlights
if highlight.column > start.column
# insertion was fully before this highlight
@moveHighlight highlight,
row: end.row
column: highlight.column + (end.column - start.column)
else if highlight.column + highlight.word.length >= start.column
# insertion was inside this highlight
@removeHighlight highlight
else if change.action == "insertLines"
@insertRows start.row, change.lines.length
else if change.action == "removeText"
if start.row == end.row
oldHighlights = (@highlights.rows[start.row] || []).slice(0)
else
rowsRemoved = end.row - start.row
oldHighlights =
(@highlights.rows[start.row] || []).concat(
(@highlights.rows[end.row] || [])
)
@removeRows start.row + 1, rowsRemoved
for highlight in oldHighlights
if @_doesHighlightOverlapRange highlight, start, end
@removeHighlight highlight
else if @_isHighlightAfterRange highlight, start, end
@moveHighlight highlight,
row: start.row
column: highlight.column - (end.column - start.column)
else if change.action == "removeLines"
@removeRows start.row, change.lines.length
_doesHighlightOverlapRange: (highlight, start, end) ->
highlightIsAllBeforeRange =
highlight.row < start.row or
(highlight.row == start.row and highlight.column + highlight.word.length <= start.column)
highlightIsAllAfterRange =
highlight.row > end.row or
(highlight.row == end.row and highlight.column >= end.column)
!(highlightIsAllBeforeRange or highlightIsAllAfterRange)
_isHighlightAfterRange: (highlight, start, end) ->
return true if highlight.row > end.row
return false if highlight.row < end.row
highlight.column >= end.column