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Merge pull request #2588 from atom/bo-fix-page-up-down

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Fix pageUp and pageDown in the react editor
This commit is contained in:
Ben Ogle
2014-06-11 17:30:59 -07:00
parent 1bdf45f7d6 7e6e61905b
commit 2c7d01e398
2 changed files with 16 additions and 3 deletions
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12
src/editor.coffee
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@@ -1605,10 +1605,18 @@ class Editor extends Model
@getCursor().autoscroll()
pageUp: ->
@setScrollTop(@getScrollTop() - @getHeight())
newScrollTop = @getScrollTop() - @getHeight()
@moveCursorUp(@getRowsPerPage())
@setScrollTop(newScrollTop)
pageDown: ->
@setScrollTop(@getScrollTop() + @getHeight())
newScrollTop = @getScrollTop() + @getHeight()
@moveCursorDown(@getRowsPerPage())
@setScrollTop(newScrollTop)
# Returns the number of rows per page
getRowsPerPage: ->
Math.max(1, Math.ceil(@getHeight() / @getLineHeightInPixels()))
moveCursors: (fn) ->
@movingCursors = true