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🎨 Refactor ::updateTilesState to a composed method

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This commit is contained in:
Antonio Scandurra
2015-09-15 15:44:06 +02:00
parent c7d4871453
commit 4c5101a7e1
1 changed files with 46 additions and 30 deletions
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76
src/text-editor-presenter.coffee
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@@ -331,48 +331,64 @@ class TextEditorPresenter
(@getEndTileRow() - @getStartTileRow() + 1) / @tileSize
)
updateTilesState: ->
return unless @startRow? and @endRow? and @lineHeight?
updateLinesTileState: (startRow, zIndex) ->
endRow = Math.min(@model.getScreenLineCount(), startRow + @tileSize)
visibleTiles = {}
tile = @state.content.tiles[startRow] ?= {}
tile.top = startRow * @lineHeight - @scrollTop
tile.left = -@scrollLeft
tile.height = @tileSize * @lineHeight
tile.display = "block"
tile.zIndex = zIndex
tile.highlights ?= {}
@updateLinesState(tile, startRow, endRow) if @shouldUpdateLinesState
updateLineNumbersTileState: (startRow, zIndex) ->
endRow = Math.min(@model.getScreenLineCount(), startRow + @tileSize)
gutterTile = @lineNumberGutter.tiles[startRow] ?= {}
gutterTile.top = startRow * @lineHeight - @scrollTop
gutterTile.height = @tileSize * @lineHeight
gutterTile.display = "block"
gutterTile.zIndex = zIndex
@updateLineNumbersState(gutterTile, startRow, endRow) if @shouldUpdateLineNumbersState
updateVisibleTilesState: ->
zIndex = @getTilesCount() - 1
for startRow in [@getStartTileRow()..@getEndTileRow()] by @tileSize
endRow = Math.min(@model.getScreenLineCount(), startRow + @tileSize)
tile = @state.content.tiles[startRow] ?= {}
tile.top = startRow * @lineHeight - @scrollTop
tile.left = -@scrollLeft
tile.height = @tileSize * @lineHeight
tile.display = "block"
tile.zIndex = zIndex
tile.highlights ?= {}
gutterTile = @lineNumberGutter.tiles[startRow] ?= {}
gutterTile.top = startRow * @lineHeight - @scrollTop
gutterTile.height = @tileSize * @lineHeight
gutterTile.display = "block"
gutterTile.zIndex = zIndex
@updateLinesState(tile, startRow, endRow) if @shouldUpdateLinesState
@updateLineNumbersState(gutterTile, startRow, endRow) if @shouldUpdateLineNumbersState
visibleTiles[startRow] = true
@updateLinesTileState(startRow, zIndex)
@updateLineNumbersTileState(startRow, zIndex)
@visibleTiles[startRow] = true
zIndex--
if @mouseWheelScreenRow? and @model.tokenizedLineForScreenRow(@mouseWheelScreenRow)?
mouseWheelTile = @tileForRow(@mouseWheelScreenRow)
updateMouseWheelTileState: ->
return unless @mouseWheelScreenRow? and @model.tokenizedLineForScreenRow(@mouseWheelScreenRow)?
unless visibleTiles[mouseWheelTile]?
@lineNumberGutter.tiles[mouseWheelTile].display = "none"
@state.content.tiles[mouseWheelTile].display = "none"
visibleTiles[mouseWheelTile] = true
mouseWheelTile = @tileForRow(@mouseWheelScreenRow)
unless @visibleTiles[mouseWheelTile]?
@lineNumberGutter.tiles[mouseWheelTile].display = "none"
@state.content.tiles[mouseWheelTile].display = "none"
@visibleTiles[mouseWheelTile] = true
deleteHiddenTilesState: ->
for id, tile of @state.content.tiles
continue if visibleTiles.hasOwnProperty(id)
continue if @visibleTiles.hasOwnProperty(id)
delete @state.content.tiles[id]
delete @lineNumberGutter.tiles[id]
updateTilesState: ->
return unless @startRow? and @endRow? and @lineHeight?
@visibleTiles = {}
@updateVisibleTilesState()
@updateMouseWheelTileState()
@deleteHiddenTilesState()
updateLinesState: (tileState, startRow, endRow) ->
tileState.lines ?= {}
visibleLineIds = {}