Files
atom/src/editor-component.coffee
Ben Ogle 1bdf45f7d6 Fix gutter width
When you had a 1000 line file and you fold everything
into 10 lines, it would make the gutter width only large
enough for the 10 lines, so line 999 wouldnt properly
fit in the gutter.

Refs #2423
2014-06-11 17:28:12 -07:00

800 lines
30 KiB
CoffeeScript

React = require 'react-atom-fork'
{div, span} = require 'reactionary-atom-fork'
{debounce, defaults, isEqualForProperties} = require 'underscore-plus'
scrollbarStyle = require 'scrollbar-style'
{Range, Point} = require 'text-buffer'
GutterComponent = require './gutter-component'
InputComponent = require './input-component'
CursorsComponent = require './cursors-component'
LinesComponent = require './lines-component'
ScrollbarComponent = require './scrollbar-component'
ScrollbarCornerComponent = require './scrollbar-corner-component'
SubscriberMixin = require './subscriber-mixin'
module.exports =
EditorComponent = React.createClass
displayName: 'EditorComponent'
mixins: [SubscriberMixin]
pendingScrollTop: null
pendingScrollLeft: null
selectOnMouseMove: false
batchingUpdates: false
updateRequested: false
cursorsMoved: false
selectionChanged: false
selectionAdded: false
scrollingVertically: false
gutterWidth: 0
refreshingScrollbars: false
measuringScrollbars: true
pendingVerticalScrollDelta: 0
pendingHorizontalScrollDelta: 0
mouseWheelScreenRow: null
mouseWheelScreenRowClearDelay: 150
scrollSensitivity: 0.4
scrollViewMeasurementRequested: false
measureLineHeightAndDefaultCharWidthWhenShown: false
inputEnabled: true
render: ->
{focused, fontSize, lineHeight, fontFamily, showIndentGuide, showInvisibles, visible} = @state
{editor, cursorBlinkPeriod, cursorBlinkResumeDelay} = @props
maxLineNumberDigits = editor.getLineCount().toString().length
invisibles = if showInvisibles then @state.invisibles else {}
hasSelection = editor.getSelection()? and !editor.getSelection().isEmpty()
if @isMounted()
renderedRowRange = @getRenderedRowRange()
[renderedStartRow, renderedEndRow] = renderedRowRange
cursorScreenRanges = @getCursorScreenRanges(renderedRowRange)
selectionScreenRanges = @getSelectionScreenRanges(renderedRowRange)
decorations = @getGutterDecorations(renderedRowRange)
scrollHeight = editor.getScrollHeight()
scrollWidth = editor.getScrollWidth()
scrollTop = editor.getScrollTop()
scrollLeft = editor.getScrollLeft()
lineHeightInPixels = editor.getLineHeightInPixels()
defaultCharWidth = editor.getDefaultCharWidth()
scrollViewHeight = editor.getHeight()
horizontalScrollbarHeight = editor.getHorizontalScrollbarHeight()
verticalScrollbarWidth = editor.getVerticalScrollbarWidth()
verticallyScrollable = editor.verticallyScrollable()
horizontallyScrollable = editor.horizontallyScrollable()
hiddenInputStyle = @getHiddenInputPosition()
hiddenInputStyle.WebkitTransform = 'translateZ(0)'
if @mouseWheelScreenRow? and not (renderedStartRow <= @mouseWheelScreenRow < renderedEndRow)
mouseWheelScreenRow = @mouseWheelScreenRow
className = 'editor-contents editor-colors'
className += ' is-focused' if focused
className += ' has-selection' if hasSelection
div className: className, style: {fontSize, lineHeight, fontFamily}, tabIndex: -1,
GutterComponent {
ref: 'gutter', editor, renderedRowRange, maxLineNumberDigits, scrollTop,
scrollHeight, lineHeightInPixels, @pendingChanges, mouseWheelScreenRow,
decorations
}
div ref: 'scrollView', className: 'scroll-view', onMouseDown: @onMouseDown,
InputComponent
ref: 'input'
className: 'hidden-input'
style: hiddenInputStyle
onInput: @onInput
onFocus: @onInputFocused
onBlur: @onInputBlurred
CursorsComponent {
editor, scrollTop, scrollLeft, cursorScreenRanges, cursorBlinkPeriod, cursorBlinkResumeDelay,
lineHeightInPixels, defaultCharWidth
}
LinesComponent {
ref: 'lines', editor, lineHeightInPixels, defaultCharWidth,
showIndentGuide, renderedRowRange, @pendingChanges, scrollTop, scrollLeft, @scrollingVertically,
selectionScreenRanges, scrollHeight, scrollWidth, mouseWheelScreenRow, invisibles,
visible, scrollViewHeight
}
ScrollbarComponent
ref: 'verticalScrollbar'
className: 'vertical-scrollbar'
orientation: 'vertical'
onScroll: @onVerticalScroll
scrollTop: scrollTop
scrollHeight: scrollHeight
visible: verticallyScrollable and not @refreshingScrollbars and not @measuringScrollbars
scrollableInOppositeDirection: horizontallyScrollable
verticalScrollbarWidth: verticalScrollbarWidth
horizontalScrollbarHeight: horizontalScrollbarHeight
ScrollbarComponent
ref: 'horizontalScrollbar'
className: 'horizontal-scrollbar'
orientation: 'horizontal'
onScroll: @onHorizontalScroll
scrollLeft: scrollLeft
scrollWidth: scrollWidth + @gutterWidth
visible: horizontallyScrollable and not @refreshingScrollbars and not @measuringScrollbars
scrollableInOppositeDirection: verticallyScrollable
verticalScrollbarWidth: verticalScrollbarWidth
horizontalScrollbarHeight: horizontalScrollbarHeight
# Also used to measure the height/width of scrollbars after the initial render
ScrollbarCornerComponent
ref: 'scrollbarCorner'
visible: not @refreshingScrollbars and (@measuringScrollbars or horizontallyScrollable and verticallyScrollable)
measuringScrollbars: @measuringScrollbars
height: horizontalScrollbarHeight
width: verticalScrollbarWidth
getInitialState: ->
visible: true
getDefaultProps: ->
cursorBlinkPeriod: 800
cursorBlinkResumeDelay: 100
lineOverdrawMargin: 8
componentWillMount: ->
@pendingChanges = []
@props.editor.manageScrollPosition = true
@observeConfig()
@setScrollSensitivity(atom.config.get('editor.scrollSensitivity'))
componentDidMount: ->
{editor} = @props
@observeEditor()
@listenForDOMEvents()
@listenForCommands()
@subscribe atom.themes, 'stylesheet-added stylsheet-removed', @onStylesheetsChanged
@subscribe scrollbarStyle.changes, @refreshScrollbars
editor.setVisible(true)
editor.batchUpdates =>
@measureLineHeightAndDefaultCharWidth()
@measureScrollView()
@measureScrollbars()
componentWillUnmount: ->
@unsubscribe()
window.removeEventListener('resize', @onWindowResize)
componentWillUpdate: ->
if @props.editor.isAlive()
@props.parentView.trigger 'cursor:moved' if @cursorsMoved
@props.parentView.trigger 'selection:changed' if @selectionChanged
componentDidUpdate: (prevProps, prevState) ->
@pendingChanges.length = 0
@refreshingScrollbars = false
@updateParentViewFocusedClassIfNeeded(prevState)
@measureScrollbars() if @measuringScrollbars
@measureLineHeightAndCharWidthsIfNeeded(prevState)
@props.parentView.trigger 'editor:display-updated'
requestUpdate: ->
if @batchingUpdates
@updateRequested = true
else
@forceUpdate()
getRenderedRowRange: ->
{editor, lineOverdrawMargin} = @props
[visibleStartRow, visibleEndRow] = editor.getVisibleRowRange()
renderedStartRow = Math.max(0, visibleStartRow - lineOverdrawMargin)
renderedEndRow = Math.min(editor.getScreenLineCount(), visibleEndRow + lineOverdrawMargin)
[renderedStartRow, renderedEndRow]
getHiddenInputPosition: ->
{editor} = @props
{focused} = @state
return {top: 0, left: 0} unless @isMounted() and focused and editor.getCursor()?
{top, left, height, width} = editor.getCursor().getPixelRect()
width = 2 if width is 0 # Prevent autoscroll at the end of longest line
top -= editor.getScrollTop()
left -= editor.getScrollLeft()
top = Math.max(0, Math.min(editor.getHeight() - height, top))
left = Math.max(0, Math.min(editor.getWidth() - width, left))
{top, left}
getCursorScreenRanges: (renderedRowRange) ->
{editor} = @props
[renderedStartRow, renderedEndRow] = renderedRowRange
cursorScreenRanges = {}
for selection in editor.getSelections() when selection.isEmpty()
{cursor} = selection
screenRange = cursor.getScreenRange()
if renderedStartRow <= screenRange.start.row < renderedEndRow
cursorScreenRanges[cursor.id] = screenRange
cursorScreenRanges
getSelectionScreenRanges: (renderedRowRange) ->
{editor} = @props
[renderedStartRow, renderedEndRow] = renderedRowRange
selectionScreenRanges = {}
for selection, index in editor.getSelections()
screenRange = selection.getScreenRange()
if not screenRange.isEmpty() and screenRange.intersectsRowRange(renderedStartRow, renderedEndRow)
selectionScreenRanges[selection.id] = screenRange
else if index is 0 # Rendering artifacts occur on the lines GPU layer if we remove the last selection
selectionScreenRanges[selection.id] = new Range(new Point(renderedStartRow, 0), new Point(renderedStartRow, 0))
selectionScreenRanges
getGutterDecorations: (renderedRowRange) ->
{editor} = @props
[renderedStartRow, renderedEndRow] = renderedRowRange
bufferRows = editor.bufferRowsForScreenRows(renderedStartRow, renderedEndRow - 1)
decorations = {}
for bufferRow in bufferRows
decorations[bufferRow] = editor.decorationsForBufferRow(bufferRow, 'gutter')
decorations[bufferRow].push {class: 'foldable'} if editor.isFoldableAtBufferRow(bufferRow)
decorations
observeEditor: ->
{editor} = @props
@subscribe editor, 'batched-updates-started', @onBatchedUpdatesStarted
@subscribe editor, 'batched-updates-ended', @onBatchedUpdatesEnded
@subscribe editor, 'screen-lines-changed', @onScreenLinesChanged
@subscribe editor, 'cursors-moved', @onCursorsMoved
@subscribe editor, 'selection-removed selection-screen-range-changed', @onSelectionChanged
@subscribe editor, 'selection-added', @onSelectionAdded
@subscribe editor, 'decoration-changed', @onDecorationChanged
@subscribe editor.$scrollTop.changes, @onScrollTopChanged
@subscribe editor.$scrollLeft.changes, @requestUpdate
@subscribe editor.$height.changes, @requestUpdate
@subscribe editor.$width.changes, @requestUpdate
@subscribe editor.$defaultCharWidth.changes, @requestUpdate
@subscribe editor.$lineHeightInPixels.changes, @requestUpdate
listenForDOMEvents: ->
node = @getDOMNode()
node.addEventListener 'mousewheel', @onMouseWheel
node.addEventListener 'focus', @onFocus # For some reason, React's built in focus events seem to bubble
scrollViewNode = @refs.scrollView.getDOMNode()
scrollViewNode.addEventListener 'overflowchanged', @onScrollViewOverflowChanged
scrollViewNode.addEventListener 'scroll', @onScrollViewScroll
window.addEventListener('resize', @onWindowResize)
listenForCommands: ->
{parentView, editor, mini} = @props
@addCommandListeners
'core:move-left': => editor.moveCursorLeft()
'core:move-right': => editor.moveCursorRight()
'core:select-left': => editor.selectLeft()
'core:select-right': => editor.selectRight()
'core:select-all': => editor.selectAll()
'core:backspace': => editor.backspace()
'core:delete': => editor.delete()
'core:undo': => editor.undo()
'core:redo': => editor.redo()
'core:cut': => editor.cutSelectedText()
'core:copy': => editor.copySelectedText()
'core:paste': => editor.pasteText()
'editor:move-to-previous-word': => editor.moveCursorToPreviousWord()
'editor:select-word': => editor.selectWord()
'editor:consolidate-selections': @consolidateSelections
'editor:delete-to-beginning-of-word': => editor.deleteToBeginningOfWord()
'editor:delete-to-beginning-of-line': => editor.deleteToBeginningOfLine()
'editor:delete-to-end-of-word': => editor.deleteToEndOfWord()
'editor:delete-line': => editor.deleteLine()
'editor:cut-to-end-of-line': => editor.cutToEndOfLine()
'editor:move-to-beginning-of-next-paragraph': => editor.moveCursorToBeginningOfNextParagraph()
'editor:move-to-beginning-of-previous-paragraph': => editor.moveCursorToBeginningOfPreviousParagraph()
'editor:move-to-beginning-of-screen-line': => editor.moveCursorToBeginningOfScreenLine()
'editor:move-to-beginning-of-line': => editor.moveCursorToBeginningOfLine()
'editor:move-to-end-of-screen-line': => editor.moveCursorToEndOfScreenLine()
'editor:move-to-end-of-line': => editor.moveCursorToEndOfLine()
'editor:move-to-first-character-of-line': => editor.moveCursorToFirstCharacterOfLine()
'editor:move-to-beginning-of-word': => editor.moveCursorToBeginningOfWord()
'editor:move-to-end-of-word': => editor.moveCursorToEndOfWord()
'editor:move-to-beginning-of-next-word': => editor.moveCursorToBeginningOfNextWord()
'editor:move-to-previous-word-boundary': => editor.moveCursorToPreviousWordBoundary()
'editor:move-to-next-word-boundary': => editor.moveCursorToNextWordBoundary()
'editor:select-to-beginning-of-next-paragraph': => editor.selectToBeginningOfNextParagraph()
'editor:select-to-beginning-of-previous-paragraph': => editor.selectToBeginningOfPreviousParagraph()
'editor:select-to-end-of-line': => editor.selectToEndOfLine()
'editor:select-to-beginning-of-line': => editor.selectToBeginningOfLine()
'editor:select-to-end-of-word': => editor.selectToEndOfWord()
'editor:select-to-beginning-of-word': => editor.selectToBeginningOfWord()
'editor:select-to-beginning-of-next-word': => editor.selectToBeginningOfNextWord()
'editor:select-to-next-word-boundary': => editor.selectToNextWordBoundary()
'editor:select-to-previous-word-boundary': => editor.selectToPreviousWordBoundary()
'editor:select-to-first-character-of-line': => editor.selectToFirstCharacterOfLine()
'editor:select-line': => editor.selectLine()
'editor:transpose': => editor.transpose()
'editor:upper-case': => editor.upperCase()
'editor:lower-case': => editor.lowerCase()
unless mini
@addCommandListeners
'core:move-up': => editor.moveCursorUp()
'core:move-down': => editor.moveCursorDown()
'core:move-to-top': => editor.moveCursorToTop()
'core:move-to-bottom': => editor.moveCursorToBottom()
'core:select-up': => editor.selectUp()
'core:select-down': => editor.selectDown()
'core:select-to-top': => editor.selectToTop()
'core:select-to-bottom': => editor.selectToBottom()
'editor:indent': => editor.indent()
'editor:auto-indent': => editor.autoIndentSelectedRows()
'editor:indent-selected-rows': => editor.indentSelectedRows()
'editor:outdent-selected-rows': => editor.outdentSelectedRows()
'editor:newline': => editor.insertNewline()
'editor:newline-below': => editor.insertNewlineBelow()
'editor:newline-above': => editor.insertNewlineAbove()
'editor:add-selection-below': => editor.addSelectionBelow()
'editor:add-selection-above': => editor.addSelectionAbove()
'editor:split-selections-into-lines': => editor.splitSelectionsIntoLines()
'editor:toggle-soft-tabs': => editor.toggleSoftTabs()
'editor:toggle-soft-wrap': => editor.toggleSoftWrap()
'editor:fold-all': => editor.foldAll()
'editor:unfold-all': => editor.unfoldAll()
'editor:fold-current-row': => editor.foldCurrentRow()
'editor:unfold-current-row': => editor.unfoldCurrentRow()
'editor:fold-selection': => neditor.foldSelectedLines()
'editor:fold-at-indent-level-1': => editor.foldAllAtIndentLevel(0)
'editor:fold-at-indent-level-2': => editor.foldAllAtIndentLevel(1)
'editor:fold-at-indent-level-3': => editor.foldAllAtIndentLevel(2)
'editor:fold-at-indent-level-4': => editor.foldAllAtIndentLevel(3)
'editor:fold-at-indent-level-5': => editor.foldAllAtIndentLevel(4)
'editor:fold-at-indent-level-6': => editor.foldAllAtIndentLevel(5)
'editor:fold-at-indent-level-7': => editor.foldAllAtIndentLevel(6)
'editor:fold-at-indent-level-8': => editor.foldAllAtIndentLevel(7)
'editor:fold-at-indent-level-9': => editor.foldAllAtIndentLevel(8)
'editor:toggle-line-comments': => editor.toggleLineCommentsInSelection()
'editor:log-cursor-scope': => editor.logCursorScope()
'editor:checkout-head-revision': => editor.checkoutHead()
'editor:copy-path': => editor.copyPathToClipboard()
'editor:move-line-up': => editor.moveLineUp()
'editor:move-line-down': => editor.moveLineDown()
'editor:duplicate-lines': => editor.duplicateLines()
'editor:join-lines': => editor.joinLines()
'editor:toggle-indent-guide': => atom.config.toggle('editor.showIndentGuide')
'editor:toggle-line-numbers': => atom.config.toggle('editor.showLineNumbers')
'editor:scroll-to-cursor': => editor.scrollToCursorPosition()
'core:page-up': => editor.pageUp()
'core:page-down': => editor.pageDown()
'benchmark:scroll': @runScrollBenchmark
addCommandListeners: (listenersByCommandName) ->
{parentView} = @props
for command, listener of listenersByCommandName
parentView.command command, listener
observeConfig: ->
@subscribe atom.config.observe 'editor.fontFamily', @setFontFamily
@subscribe atom.config.observe 'editor.fontSize', @setFontSize
@subscribe atom.config.observe 'editor.lineHeight', @setLineHeight
@subscribe atom.config.observe 'editor.showIndentGuide', @setShowIndentGuide
@subscribe atom.config.observe 'editor.invisibles', @setInvisibles
@subscribe atom.config.observe 'editor.showInvisibles', @setShowInvisibles
@subscribe atom.config.observe 'editor.scrollSensitivity', @setScrollSensitivity
onFocus: ->
@refs.input.focus()
onInputFocused: ->
@setState(focused: true)
onInputBlurred: ->
@setState(focused: false)
onVerticalScroll: (scrollTop) ->
{editor} = @props
return if scrollTop is editor.getScrollTop()
animationFramePending = @pendingScrollTop?
@pendingScrollTop = scrollTop
unless animationFramePending
requestAnimationFrame =>
@props.editor.setScrollTop(@pendingScrollTop)
@pendingScrollTop = null
onHorizontalScroll: (scrollLeft) ->
{editor} = @props
return if scrollLeft is editor.getScrollLeft()
animationFramePending = @pendingScrollLeft?
@pendingScrollLeft = scrollLeft
unless animationFramePending
requestAnimationFrame =>
@props.editor.setScrollLeft(@pendingScrollLeft)
@pendingScrollLeft = null
onMouseWheel: (event) ->
event.preventDefault()
animationFramePending = @pendingHorizontalScrollDelta isnt 0 or @pendingVerticalScrollDelta isnt 0
# Only scroll in one direction at a time
{wheelDeltaX, wheelDeltaY} = event
if Math.abs(wheelDeltaX) > Math.abs(wheelDeltaY)
# Scrolling horizontally
@pendingHorizontalScrollDelta -= Math.round(wheelDeltaX * @scrollSensitivity)
else
# Scrolling vertically
@pendingVerticalScrollDelta -= Math.round(wheelDeltaY * @scrollSensitivity)
@mouseWheelScreenRow = @screenRowForNode(event.target)
@clearMouseWheelScreenRowAfterDelay ?= debounce(@clearMouseWheelScreenRow, @mouseWheelScreenRowClearDelay)
@clearMouseWheelScreenRowAfterDelay()
unless animationFramePending
requestAnimationFrame =>
{editor} = @props
editor.setScrollTop(editor.getScrollTop() + @pendingVerticalScrollDelta)
editor.setScrollLeft(editor.getScrollLeft() + @pendingHorizontalScrollDelta)
@pendingVerticalScrollDelta = 0
@pendingHorizontalScrollDelta = 0
onScrollViewOverflowChanged: ->
@requestScrollViewMeasurement()
onWindowResize: ->
@requestScrollViewMeasurement()
onScrollViewScroll: ->
console.warn "EditorScrollView scroll position changed, and it shouldn't have. If you can reproduce this, please report it."
scrollViewNode = @refs.scrollView.getDOMNode()
scrollViewNode.scrollTop = 0
scrollViewNode.scrollLeft = 0
onInput: (char, replaceLastCharacter) ->
return unless @inputEnabled
{editor} = @props
if replaceLastCharacter
editor.transact ->
editor.selectLeft()
editor.insertText(char)
else
editor.insertText(char)
onMouseDown: (event) ->
{editor} = @props
{detail, shiftKey, metaKey} = event
screenPosition = @screenPositionForMouseEvent(event)
if shiftKey
editor.selectToScreenPosition(screenPosition)
else if metaKey
editor.addCursorAtScreenPosition(screenPosition)
else
editor.setCursorScreenPosition(screenPosition)
switch detail
when 2 then editor.selectWord()
when 3 then editor.selectLine()
@selectToMousePositionUntilMouseUp(event)
onStylesheetsChanged: (stylesheet) ->
@refreshScrollbars() if @containsScrollbarSelector(stylesheet)
onBatchedUpdatesStarted: ->
@batchingUpdates = true
onBatchedUpdatesEnded: ->
updateRequested = @updateRequested
@updateRequested = false
@batchingUpdates = false
if updateRequested
@requestUpdate()
onScreenLinesChanged: (change) ->
{editor} = @props
@pendingChanges.push(change)
@requestUpdate() if editor.intersectsVisibleRowRange(change.start, change.end + 1) # TODO: Use closed-open intervals for change events
onSelectionChanged: (selection) ->
{editor} = @props
if editor.selectionIntersectsVisibleRowRange(selection)
@selectionChanged = true
@requestUpdate()
onSelectionAdded: (selection) ->
{editor} = @props
if editor.selectionIntersectsVisibleRowRange(selection)
@selectionChanged = true
@selectionAdded = true
@requestUpdate()
onScrollTopChanged: ->
@scrollingVertically = true
@requestUpdate()
@onStoppedScrollingAfterDelay ?= debounce(@onStoppedScrolling, 100)
@onStoppedScrollingAfterDelay()
onStoppedScrolling: ->
return unless @isMounted()
@scrollingVertically = false
@mouseWheelScreenRow = null
@requestUpdate()
onStoppedScrollingAfterDelay: null # created lazily
onCursorsMoved: ->
@cursorsMoved = true
@requestUpdate()
onDecorationChanged: ->
@decorationChangedImmediate ?= setImmediate =>
@requestUpdate() if @isMounted()
@decorationChangedImmediate = null
selectToMousePositionUntilMouseUp: (event) ->
{editor} = @props
dragging = false
lastMousePosition = {}
animationLoop = =>
requestAnimationFrame =>
if dragging
@selectToMousePosition(lastMousePosition)
animationLoop()
onMouseMove = (event) ->
lastMousePosition.clientX = event.clientX
lastMousePosition.clientY = event.clientY
# Start the animation loop when the mouse moves prior to a mouseup event
unless dragging
dragging = true
animationLoop()
# Stop dragging when cursor enters dev tools because we can't detect mouseup
onMouseUp() if event.which is 0
onMouseUp = ->
dragging = false
window.removeEventListener('mousemove', onMouseMove)
window.removeEventListener('mouseup', onMouseUp)
editor.finalizeSelections()
window.addEventListener('mousemove', onMouseMove)
window.addEventListener('mouseup', onMouseUp)
selectToMousePosition: (event) ->
@props.editor.selectToScreenPosition(@screenPositionForMouseEvent(event))
requestScrollViewMeasurement: ->
return if @measurementPending
@scrollViewMeasurementRequested = true
requestAnimationFrame =>
@scrollViewMeasurementRequested = false
@measureScrollView()
# Measure explicitly-styled height and width and relay them to the model. If
# these values aren't explicitly styled, we assume the editor is unconstrained
# and use the scrollHeight / scrollWidth as its height and width in
# calculations.
measureScrollView: ->
return unless @isMounted()
{editor} = @props
editorNode = @getDOMNode()
scrollViewNode = @refs.scrollView.getDOMNode()
{position} = getComputedStyle(editorNode)
{width, height} = editorNode.style
if position is 'absolute' or height
clientHeight = scrollViewNode.clientHeight
editor.setHeight(clientHeight) if clientHeight > 0
if position is 'absolute' or width
clientWidth = scrollViewNode.clientWidth
editor.setWidth(clientWidth) if clientWidth > 0
measureLineHeightAndCharWidthsIfNeeded: (prevState) ->
if not isEqualForProperties(prevState, @state, 'lineHeight', 'fontSize', 'fontFamily')
{editor} = @props
editor.batchUpdates =>
oldDefaultCharWidth = editor.getDefaultCharWidth()
if @state.visible
@measureLineHeightAndDefaultCharWidth()
else
@measureLineHeightAndDefaultCharWidthWhenShown = true
unless oldDefaultCharWidth is editor.getDefaultCharWidth()
@remeasureCharacterWidths()
@measureGutter()
else if @measureLineHeightAndDefaultCharWidthWhenShown and @state.visible and not prevState.visible
@measureLineHeightAndDefaultCharWidth()
measureLineHeightAndDefaultCharWidth: ->
@measureLineHeightAndDefaultCharWidthWhenShown = false
@refs.lines.measureLineHeightAndDefaultCharWidth()
remeasureCharacterWidths: ->
@refs.lines.remeasureCharacterWidths()
measureGutter: ->
oldGutterWidth = @gutterWidth
@gutterWidth = @refs.gutter.getDOMNode().offsetWidth
@requestUpdate() if @gutterWidth isnt oldGutterWidth
measureScrollbars: ->
@measuringScrollbars = false
{editor} = @props
scrollbarCornerNode = @refs.scrollbarCorner.getDOMNode()
width = (scrollbarCornerNode.offsetWidth - scrollbarCornerNode.clientWidth) or 15
height = (scrollbarCornerNode.offsetHeight - scrollbarCornerNode.clientHeight) or 15
editor.setVerticalScrollbarWidth(width)
editor.setHorizontalScrollbarHeight(height)
containsScrollbarSelector: (stylesheet) ->
for rule in stylesheet.cssRules
if rule.selectorText?.indexOf('scrollbar') > -1
return true
false
refreshScrollbars: ->
# Believe it or not, proper handling of changes to scrollbar styles requires
# three DOM updates.
# Scrollbar style changes won't apply to scrollbars that are already
# visible, so first we need to hide scrollbars so we can redisplay them and
# force Chromium to apply updates.
@refreshingScrollbars = true
@requestUpdate()
# Next, we display only the scrollbar corner so we can measure the new
# scrollbar dimensions. The ::measuringScrollbars property will be set back
# to false after the scrollbars are measured.
@measuringScrollbars = true
@requestUpdate()
# Finally, we restore the scrollbars based on the newly-measured dimensions
# if the editor's content and dimensions require them to be visible.
@requestUpdate()
clearMouseWheelScreenRow: ->
if @mouseWheelScreenRow?
@mouseWheelScreenRow = null
@requestUpdate()
clearMouseWheelScreenRowAfterDelay: null # created lazily
consolidateSelections: (e) ->
e.abortKeyBinding() unless @props.editor.consolidateSelections()
lineNodeForScreenRow: (screenRow) -> @refs.lines.lineNodeForScreenRow(screenRow)
lineNumberNodeForScreenRow: (screenRow) -> @refs.gutter.lineNumberNodeForScreenRow(screenRow)
screenRowForNode: (node) ->
while node isnt document
if screenRow = node.dataset.screenRow
return parseInt(screenRow)
node = node.parentNode
null
hide: ->
@setState(visible: false)
show: ->
@setState(visible: true)
getFontSize: ->
@state.fontSize
setFontSize: (fontSize) ->
@setState({fontSize})
getFontFamily: ->
@state.fontFamily
setFontFamily: (fontFamily) ->
@setState({fontFamily})
setLineHeight: (lineHeight) ->
@setState({lineHeight})
setShowIndentGuide: (showIndentGuide) ->
@setState({showIndentGuide})
# Public: Defines which characters are invisible.
#
# invisibles - An {Object} defining the invisible characters:
# :eol - The end of line invisible {String} (default: `\u00ac`).
# :space - The space invisible {String} (default: `\u00b7`).
# :tab - The tab invisible {String} (default: `\u00bb`).
# :cr - The carriage return invisible {String} (default: `\u00a4`).
setInvisibles: (invisibles={}) ->
defaults invisibles,
eol: '\u00ac'
space: '\u00b7'
tab: '\u00bb'
cr: '\u00a4'
@setState({invisibles})
setShowInvisibles: (showInvisibles) ->
@setState({showInvisibles})
setScrollSensitivity: (scrollSensitivity) ->
if scrollSensitivity = parseInt(scrollSensitivity)
@scrollSensitivity = Math.abs(scrollSensitivity) / 100
screenPositionForMouseEvent: (event) ->
pixelPosition = @pixelPositionForMouseEvent(event)
@props.editor.screenPositionForPixelPosition(pixelPosition)
pixelPositionForMouseEvent: (event) ->
{editor} = @props
{clientX, clientY} = event
scrollViewClientRect = @refs.scrollView.getDOMNode().getBoundingClientRect()
top = clientY - scrollViewClientRect.top + editor.getScrollTop()
left = clientX - scrollViewClientRect.left + editor.getScrollLeft()
{top, left}
getModel: ->
@props.editor
isInputEnabled: -> @inputEnabled
setInputEnabled: (@inputEnabled) -> @inputEnabled
updateParentViewFocusedClassIfNeeded: (prevState) ->
if prevState.focused isnt @state.focused
@props.parentView.toggleClass('is-focused', @props.focused)
runScrollBenchmark: ->
unless process.env.NODE_ENV is 'production'
ReactPerf = require 'react-atom-fork/lib/ReactDefaultPerf'
ReactPerf.start()
node = @getDOMNode()
scroll = (delta, done) ->
dispatchMouseWheelEvent = ->
node.dispatchEvent(new WheelEvent('mousewheel', wheelDeltaX: -0, wheelDeltaY: -delta))
stopScrolling = ->
clearInterval(interval)
done?()
interval = setInterval(dispatchMouseWheelEvent, 10)
setTimeout(stopScrolling, 500)
console.timeline('scroll')
scroll 50, ->
scroll 100, ->
scroll 200, ->
scroll 400, ->
scroll 800, ->
scroll 1600, ->
console.timelineEnd('scroll')
unless process.env.NODE_ENV is 'production'
ReactPerf.stop()
console.log "Inclusive"
ReactPerf.printInclusive()
console.log "Exclusive"
ReactPerf.printExclusive()
console.log "Wasted"
ReactPerf.printWasted()