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Merge pull request #8624 from atom/ns-fix-mouse-autoscroll

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Autoscroll when mouse gets close to the edge of the editor scroll view
This commit is contained in:
Nathan Sobo
2015-09-01 11:22:28 -06:00
parent e1a5a99fda f1276f59de
commit 968cf6a51b
2 changed files with 23 additions and 18 deletions
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22
src/text-editor-component.coffee
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@@ -545,20 +545,24 @@ class TextEditorComponent
disposables.dispose()
autoscroll = (mouseClientPosition) =>
editorClientRect = @domNode.getBoundingClientRect()
{top, bottom, left, right} = @scrollViewNode.getBoundingClientRect()
top += 30
bottom -= 30
left += 30
right -= 30
if mouseClientPosition.clientY < editorClientRect.top
mouseYDelta = editorClientRect.top - mouseClientPosition.clientY
if mouseClientPosition.clientY < top
mouseYDelta = top - mouseClientPosition.clientY
yDirection = -1
else if mouseClientPosition.clientY > editorClientRect.bottom
mouseYDelta = mouseClientPosition.clientY - editorClientRect.bottom
else if mouseClientPosition.clientY > bottom
mouseYDelta = mouseClientPosition.clientY - bottom
yDirection = 1
if mouseClientPosition.clientX < editorClientRect.left
mouseXDelta = editorClientRect.left - mouseClientPosition.clientX
if mouseClientPosition.clientX < left
mouseXDelta = left - mouseClientPosition.clientX
xDirection = -1
else if mouseClientPosition.clientX > editorClientRect.right
mouseXDelta = mouseClientPosition.clientX - editorClientRect.right
else if mouseClientPosition.clientX > right
mouseXDelta = mouseClientPosition.clientX - right
xDirection = 1
if mouseYDelta?