Files
atom/src/app/cursor-view.coffee
2012-11-14 14:35:08 -07:00

74 lines
2.0 KiB
CoffeeScript

{View} = require 'space-pen'
Anchor = require 'anchor'
Point = require 'point'
Range = require 'range'
_ = require 'underscore'
module.exports =
class CursorView extends View
@content: ->
@pre class: 'cursor idle', => @raw ' '
editor: null
visible: true
needsUpdate: true
needsAutoscroll: true
needsRemoval: false
initialize: (@cursor, @editor) ->
@cursor.on 'change-screen-position.cursor-view', (screenPosition, { bufferChange, autoscroll }) =>
@needsUpdate = true
@needsAutoscroll = (autoscroll ? true) and @cursor?.isLastCursor()
@editor.requestDisplayUpdate()
@cursor.on 'change-visibility.cursor-view', (visible) =>
@needsUpdate = true
@needsAutoscroll = visible and @cursor.isLastCursor()
@editor.requestDisplayUpdate()
@cursor.on 'destroy.cursor-view', =>
@needsRemoval = true
@editor.requestDisplayUpdate()
remove: ->
@editor.removeCursorView(this)
@cursor.off('.cursor-view')
super
updateDisplay: ->
screenPosition = @getScreenPosition()
pixelPosition = @getPixelPosition()
unless _.isEqual(@lastPixelPosition, pixelPosition)
changedPosition = true
@css(pixelPosition)
# @removeIdleClassTemporarily() unless bufferChange
@trigger 'cursor-move'
@setVisible(@cursor.isVisible() and not @editor.isFoldedAtScreenRow(screenPosition.row))
getPixelPosition: ->
@editor.pixelPositionForScreenPosition(@getScreenPosition())
setVisible: (visible) ->
unless @visible == visible
@visible = visible
@toggle(@visible)
getBufferPosition: ->
@cursor.getBufferPosition()
getScreenPosition: ->
@cursor.getScreenPosition()
removeIdleClassTemporarily: ->
@removeClass 'idle'
window.clearTimeout(@idleTimeout) if @idleTimeout
@idleTimeout = window.setTimeout (=> @addClass 'idle'), 200
resetCursorAnimation: ->
window.clearTimeout(@idleTimeout) if @idleTimeout
@removeClass 'idle'
_.defer => @addClass 'idle'