pulsar/spec/editor-component-spec.coffee
Nathan Sobo 030bcd6d4f Make react cursor the width of a default character at the end of lines
When the cursor is positioned before a character, we always make it the
width of that character. But at the end of a line, there is no character
to use to set the width, so we just use the defaultCharWidth.

This makes the block cursor visible on empty lines in vim-mode.
2014-06-11 11:54:10 -06:00

1251 lines
59 KiB
CoffeeScript

_ = require 'underscore-plus'
{extend, flatten, toArray, last} = _
ReactEditorView = require '../src/react-editor-view'
nbsp = String.fromCharCode(160)
describe "EditorComponent", ->
[contentNode, editor, wrapperView, component, node, verticalScrollbarNode, horizontalScrollbarNode] = []
[lineHeightInPixels, charWidth, delayAnimationFrames, nextAnimationFrame, lineOverdrawMargin] = []
beforeEach ->
lineOverdrawMargin = 2
waitsForPromise ->
atom.packages.activatePackage('language-javascript')
runs ->
spyOn(window, "setInterval").andCallFake window.fakeSetInterval
spyOn(window, "clearInterval").andCallFake window.fakeClearInterval
delayAnimationFrames = false
nextAnimationFrame = null
spyOn(window, 'requestAnimationFrame').andCallFake (fn) ->
if delayAnimationFrames
nextAnimationFrame = fn
else
fn()
waitsForPromise ->
atom.project.open('sample.js').then (o) -> editor = o
runs ->
contentNode = document.querySelector('#jasmine-content')
contentNode.style.width = '1000px'
wrapperView = new ReactEditorView(editor, {lineOverdrawMargin})
wrapperView.attachToDom()
{component} = wrapperView
component.setLineHeight(1.3)
component.setFontSize(20)
lineHeightInPixels = editor.getLineHeightInPixels()
charWidth = editor.getDefaultCharWidth()
node = component.getDOMNode()
verticalScrollbarNode = node.querySelector('.vertical-scrollbar')
horizontalScrollbarNode = node.querySelector('.horizontal-scrollbar')
node.style.height = editor.getLineCount() * lineHeightInPixels + 'px'
node.style.width = '1000px'
component.measureScrollView()
afterEach ->
contentNode.style.width = ''
describe "line rendering", ->
it "renders the currently-visible lines plus the overdraw margin", ->
node.style.height = 4.5 * lineHeightInPixels + 'px'
component.measureScrollView()
linesNode = node.querySelector('.lines')
expect(linesNode.style['-webkit-transform']).toBe "translate3d(0px, 0px, 0px)"
expect(node.querySelectorAll('.line').length).toBe 6 + 2 # no margin above
expect(component.lineNodeForScreenRow(0).textContent).toBe editor.lineForScreenRow(0).text
expect(component.lineNodeForScreenRow(0).offsetTop).toBe 0
expect(component.lineNodeForScreenRow(5).textContent).toBe editor.lineForScreenRow(5).text
expect(component.lineNodeForScreenRow(5).offsetTop).toBe 5 * lineHeightInPixels
verticalScrollbarNode.scrollTop = 4.5 * lineHeightInPixels
verticalScrollbarNode.dispatchEvent(new UIEvent('scroll'))
expect(linesNode.style['-webkit-transform']).toBe "translate3d(0px, #{-4.5 * lineHeightInPixels}px, 0px)"
expect(node.querySelectorAll('.line').length).toBe 6 + 4 # margin above and below
expect(component.lineNodeForScreenRow(2).offsetTop).toBe 2 * lineHeightInPixels
expect(component.lineNodeForScreenRow(2).textContent).toBe editor.lineForScreenRow(2).text
expect(component.lineNodeForScreenRow(9).offsetTop).toBe 9 * lineHeightInPixels
expect(component.lineNodeForScreenRow(9).textContent).toBe editor.lineForScreenRow(9).text
it "updates the top position of subsequent lines when lines are inserted or removed", ->
editor.getBuffer().deleteRows(0, 1)
lineNodes = node.querySelectorAll('.line')
expect(component.lineNodeForScreenRow(0).offsetTop).toBe 0
expect(component.lineNodeForScreenRow(1).offsetTop).toBe 1 * lineHeightInPixels
expect(component.lineNodeForScreenRow(2).offsetTop).toBe 2 * lineHeightInPixels
editor.getBuffer().insert([0, 0], '\n\n')
lineNodes = node.querySelectorAll('.line')
expect(component.lineNodeForScreenRow(0).offsetTop).toBe 0 * lineHeightInPixels
expect(component.lineNodeForScreenRow(1).offsetTop).toBe 1 * lineHeightInPixels
expect(component.lineNodeForScreenRow(2).offsetTop).toBe 2 * lineHeightInPixels
expect(component.lineNodeForScreenRow(3).offsetTop).toBe 3 * lineHeightInPixels
expect(component.lineNodeForScreenRow(4).offsetTop).toBe 4 * lineHeightInPixels
it "updates the top position of lines when the line height changes", ->
initialLineHeightInPixels = editor.getLineHeightInPixels()
component.setLineHeight(2)
newLineHeightInPixels = editor.getLineHeightInPixels()
expect(newLineHeightInPixels).not.toBe initialLineHeightInPixels
expect(component.lineNodeForScreenRow(1).offsetTop).toBe 1 * newLineHeightInPixels
it "updates the top position of lines when the font size changes", ->
initialLineHeightInPixels = editor.getLineHeightInPixels()
component.setFontSize(10)
newLineHeightInPixels = editor.getLineHeightInPixels()
expect(newLineHeightInPixels).not.toBe initialLineHeightInPixels
expect(component.lineNodeForScreenRow(1).offsetTop).toBe 1 * newLineHeightInPixels
it "updates the top position of lines when the font family changes", ->
# Can't find a font that changes the line height, but we think one might exist
linesComponent = component.refs.lines
spyOn(linesComponent, 'measureLineHeightAndDefaultCharWidth').andCallFake -> editor.setLineHeightInPixels(10)
initialLineHeightInPixels = editor.getLineHeightInPixels()
component.setFontFamily('sans-serif')
expect(linesComponent.measureLineHeightAndDefaultCharWidth).toHaveBeenCalled()
newLineHeightInPixels = editor.getLineHeightInPixels()
expect(newLineHeightInPixels).not.toBe initialLineHeightInPixels
expect(component.lineNodeForScreenRow(1).offsetTop).toBe 1 * newLineHeightInPixels
it "renders the .lines div at the full height of the editor if there aren't enough lines to scroll vertically", ->
editor.setText('')
node.style.height = '300px'
component.measureScrollView()
linesNode = node.querySelector('.lines')
expect(linesNode.offsetHeight).toBe 300
describe "when showInvisibles is enabled", ->
invisibles = null
beforeEach ->
invisibles =
eol: 'E'
space: 'S'
tab: 'T'
cr: 'C'
atom.config.set("editor.showInvisibles", true)
atom.config.set("editor.invisibles", invisibles)
it "re-renders the lines when the showInvisibles config option changes", ->
editor.setText " a line with tabs\tand spaces "
expect(component.lineNodeForScreenRow(0).textContent).toBe "#{invisibles.space}a line with tabs#{invisibles.tab} and spaces#{invisibles.space}#{invisibles.eol}"
atom.config.set("editor.showInvisibles", false)
expect(component.lineNodeForScreenRow(0).textContent).toBe " a line with tabs and spaces "
atom.config.set("editor.showInvisibles", true)
expect(component.lineNodeForScreenRow(0).textContent).toBe "#{invisibles.space}a line with tabs#{invisibles.tab} and spaces#{invisibles.space}#{invisibles.eol}"
it "displays spaces, tabs, and newlines as visible characters", ->
editor.setText " a line with tabs\tand spaces "
expect(component.lineNodeForScreenRow(0).textContent).toBe "#{invisibles.space}a line with tabs#{invisibles.tab} and spaces#{invisibles.space}#{invisibles.eol}"
it "displays newlines as their own token outside of the other tokens' scopes", ->
editor.setText "var"
expect(component.lineNodeForScreenRow(0).innerHTML).toBe "<span class=\"source js\"><span class=\"storage modifier js\">var</span></span><span class=\"invisible-character\">#{invisibles.eol}</span>"
it "displays trailing carriage returns using a visible, non-empty value", ->
editor.setText "a line that ends with a carriage return\r\n"
expect(component.lineNodeForScreenRow(0).textContent).toBe "a line that ends with a carriage return#{invisibles.cr}#{invisibles.eol}"
describe "when soft wrapping is enabled", ->
beforeEach ->
editor.setText "a line that wraps "
editor.setSoftWrap(true)
node.style.width = 16 * charWidth + 'px'
component.measureScrollView()
it "doesn't show end of line invisibles at the end of wrapped lines", ->
expect(component.lineNodeForScreenRow(0).textContent).toBe "a line that "
expect(component.lineNodeForScreenRow(1).textContent).toBe "wraps#{invisibles.space}#{invisibles.eol}"
describe "when indent guides are enabled", ->
beforeEach ->
component.setShowIndentGuide(true)
it "adds an 'indent-guide' class to spans comprising the leading whitespace", ->
line1LeafNodes = getLeafNodes(component.lineNodeForScreenRow(1))
expect(line1LeafNodes[0].textContent).toBe ' '
expect(line1LeafNodes[0].classList.contains('indent-guide')).toBe true
expect(line1LeafNodes[1].classList.contains('indent-guide')).toBe false
line2LeafNodes = getLeafNodes(component.lineNodeForScreenRow(2))
expect(line2LeafNodes[0].textContent).toBe ' '
expect(line2LeafNodes[0].classList.contains('indent-guide')).toBe true
expect(line2LeafNodes[1].textContent).toBe ' '
expect(line2LeafNodes[1].classList.contains('indent-guide')).toBe true
expect(line2LeafNodes[2].classList.contains('indent-guide')).toBe false
it "renders leading whitespace spans with the 'indent-guide' class for empty lines", ->
editor.getBuffer().insert([1, Infinity], '\n')
line2LeafNodes = getLeafNodes(component.lineNodeForScreenRow(2))
expect(line2LeafNodes.length).toBe 3
expect(line2LeafNodes[0].textContent).toBe ' '
expect(line2LeafNodes[0].classList.contains('indent-guide')).toBe true
expect(line2LeafNodes[1].textContent).toBe ' '
expect(line2LeafNodes[1].classList.contains('indent-guide')).toBe true
expect(line2LeafNodes[2].textContent).toBe ' '
expect(line2LeafNodes[2].classList.contains('indent-guide')).toBe true
it "renders indent guides correctly on lines containing only whitespace", ->
editor.getBuffer().insert([1, Infinity], '\n ')
line2LeafNodes = getLeafNodes(component.lineNodeForScreenRow(2))
expect(line2LeafNodes.length).toBe 3
expect(line2LeafNodes[0].textContent).toBe ' '
expect(line2LeafNodes[0].classList.contains('indent-guide')).toBe true
expect(line2LeafNodes[1].textContent).toBe ' '
expect(line2LeafNodes[1].classList.contains('indent-guide')).toBe true
expect(line2LeafNodes[2].textContent).toBe ' '
expect(line2LeafNodes[2].classList.contains('indent-guide')).toBe true
it "does not render indent guides in trailing whitespace for lines containing non whitespace characters", ->
editor.getBuffer().setText " hi "
line0LeafNodes = getLeafNodes(component.lineNodeForScreenRow(0))
expect(line0LeafNodes[0].textContent).toBe ' '
expect(line0LeafNodes[0].classList.contains('indent-guide')).toBe true
expect(line0LeafNodes[1].textContent).toBe ' '
expect(line0LeafNodes[1].classList.contains('indent-guide')).toBe false
getLeafNodes = (node) ->
if node.children.length > 0
flatten(toArray(node.children).map(getLeafNodes))
else
[node]
describe "when the buffer contains null bytes", ->
it "excludes the null byte from character measurement", ->
editor.setText("a\0b")
expect(editor.pixelPositionForScreenPosition([0, Infinity]).left).toEqual 2 * charWidth
describe "gutter rendering", ->
[lineNumberHasClass, gutter] = []
beforeEach ->
{gutter} = component.refs
lineNumberHasClass = (screenRow, klass) ->
component.lineNumberNodeForScreenRow(screenRow).classList.contains(klass)
it "renders the currently-visible line numbers", ->
node.style.height = 4.5 * lineHeightInPixels + 'px'
component.measureScrollView()
expect(node.querySelectorAll('.line-number').length).toBe 6 + 2 + 1 # line overdraw margin below + dummy line number
expect(component.lineNumberNodeForScreenRow(0).textContent).toBe "#{nbsp}1"
expect(component.lineNumberNodeForScreenRow(5).textContent).toBe "#{nbsp}6"
verticalScrollbarNode.scrollTop = 2.5 * lineHeightInPixels
verticalScrollbarNode.dispatchEvent(new UIEvent('scroll'))
expect(node.querySelectorAll('.line-number').length).toBe 6 + 4 + 1 # line overdraw margin above/below + dummy line number
expect(component.lineNumberNodeForScreenRow(2).textContent).toBe "#{nbsp}3"
expect(component.lineNumberNodeForScreenRow(2).offsetTop).toBe 2 * lineHeightInPixels
return
expect(component.lineNumberNodeForScreenRow(7).textContent).toBe "#{nbsp}8"
expect(component.lineNumberNodeForScreenRow(7).offsetTop).toBe 7 * lineHeightInPixels
it "updates the translation of subsequent line numbers when lines are inserted or removed", ->
editor.getBuffer().insert([0, 0], '\n\n')
lineNumberNodes = node.querySelectorAll('.line-number')
expect(component.lineNumberNodeForScreenRow(0).offsetTop).toBe 0
expect(component.lineNumberNodeForScreenRow(1).offsetTop).toBe 1 * lineHeightInPixels
expect(component.lineNumberNodeForScreenRow(2).offsetTop).toBe 2 * lineHeightInPixels
expect(component.lineNumberNodeForScreenRow(3).offsetTop).toBe 3 * lineHeightInPixels
expect(component.lineNumberNodeForScreenRow(4).offsetTop).toBe 4 * lineHeightInPixels
editor.getBuffer().insert([0, 0], '\n\n')
expect(component.lineNumberNodeForScreenRow(0).offsetTop).toBe 0
expect(component.lineNumberNodeForScreenRow(1).offsetTop).toBe 1 * lineHeightInPixels
expect(component.lineNumberNodeForScreenRow(2).offsetTop).toBe 2 * lineHeightInPixels
expect(component.lineNumberNodeForScreenRow(3).offsetTop).toBe 3 * lineHeightInPixels
expect(component.lineNumberNodeForScreenRow(4).offsetTop).toBe 4 * lineHeightInPixels
expect(component.lineNumberNodeForScreenRow(5).offsetTop).toBe 5 * lineHeightInPixels
expect(component.lineNumberNodeForScreenRow(6).offsetTop).toBe 6 * lineHeightInPixels
it "renders • characters for soft-wrapped lines", ->
editor.setSoftWrap(true)
node.style.height = 4.5 * lineHeightInPixels + 'px'
node.style.width = 30 * charWidth + 'px'
component.measureScrollView()
expect(node.querySelectorAll('.line-number').length).toBe 6 + lineOverdrawMargin + 1 # 1 dummy line node
expect(component.lineNumberNodeForScreenRow(0).textContent).toBe "#{nbsp}1"
expect(component.lineNumberNodeForScreenRow(1).textContent).toBe "#{nbsp}"
expect(component.lineNumberNodeForScreenRow(2).textContent).toBe "#{nbsp}2"
expect(component.lineNumberNodeForScreenRow(3).textContent).toBe "#{nbsp}"
expect(component.lineNumberNodeForScreenRow(4).textContent).toBe "#{nbsp}3"
expect(component.lineNumberNodeForScreenRow(5).textContent).toBe "#{nbsp}"
it "pads line numbers to be right-justified based on the maximum number of line number digits", ->
editor.getBuffer().setText([1..10].join('\n'))
for screenRow in [0..8]
expect(component.lineNumberNodeForScreenRow(screenRow).textContent).toBe "#{nbsp}#{screenRow + 1}"
expect(component.lineNumberNodeForScreenRow(9).textContent).toBe "10"
gutterNode = node.querySelector('.gutter')
initialGutterWidth = gutterNode.offsetWidth
# Removes padding when the max number of digits goes down
editor.getBuffer().delete([[1, 0], [2, 0]])
for screenRow in [0..8]
expect(component.lineNumberNodeForScreenRow(screenRow).textContent).toBe "#{screenRow + 1}"
expect(gutterNode.offsetWidth).toBeLessThan initialGutterWidth
# Increases padding when the max number of digits goes up
editor.getBuffer().insert([0, 0], '\n\n')
for screenRow in [0..8]
expect(component.lineNumberNodeForScreenRow(screenRow).textContent).toBe "#{nbsp}#{screenRow + 1}"
expect(component.lineNumberNodeForScreenRow(9).textContent).toBe "10"
expect(gutterNode.offsetWidth).toBe initialGutterWidth
describe "fold decorations", ->
describe "rendering fold decorations", ->
it "adds the foldable class to line numbers when the line is foldable", ->
expect(lineNumberHasClass(0, 'foldable')).toBe true
expect(lineNumberHasClass(1, 'foldable')).toBe true
expect(lineNumberHasClass(2, 'foldable')).toBe false
expect(lineNumberHasClass(3, 'foldable')).toBe false
expect(lineNumberHasClass(4, 'foldable')).toBe true
expect(lineNumberHasClass(5, 'foldable')).toBe false
it "updates the foldable class on the correct line numbers when the foldable positions change", ->
editor.getBuffer().insert([0, 0], '\n')
expect(lineNumberHasClass(0, 'foldable')).toBe false
expect(lineNumberHasClass(1, 'foldable')).toBe true
expect(lineNumberHasClass(2, 'foldable')).toBe true
expect(lineNumberHasClass(3, 'foldable')).toBe false
expect(lineNumberHasClass(4, 'foldable')).toBe false
expect(lineNumberHasClass(5, 'foldable')).toBe true
expect(lineNumberHasClass(6, 'foldable')).toBe false
it "updates the foldable class on a line number that becomes foldable", ->
expect(lineNumberHasClass(11, 'foldable')).toBe false
editor.getBuffer().insert([11, 44], '\n fold me')
expect(lineNumberHasClass(11, 'foldable')).toBe true
editor.undo()
expect(lineNumberHasClass(11, 'foldable')).toBe false
it "adds, updates and removes the folded class on the correct line number nodes", ->
editor.foldBufferRow(4)
expect(lineNumberHasClass(4, 'folded')).toBe true
editor.getBuffer().insert([0, 0], '\n')
expect(lineNumberHasClass(4, 'folded')).toBe false
expect(lineNumberHasClass(5, 'folded')).toBe true
editor.unfoldBufferRow(5)
expect(lineNumberHasClass(5, 'folded')).toBe false
describe "mouse interactions with fold indicators", ->
[gutterNode] = []
buildClickEvent = (target) ->
buildMouseEvent('click', {target})
beforeEach ->
gutterNode = node.querySelector('.gutter')
it "folds and unfolds the block represented by the fold indicator when clicked", ->
expect(lineNumberHasClass(1, 'folded')).toBe false
lineNumber = component.lineNumberNodeForScreenRow(1)
target = lineNumber.querySelector('.icon-right')
target.dispatchEvent(buildClickEvent(target))
expect(lineNumberHasClass(1, 'folded')).toBe true
lineNumber = component.lineNumberNodeForScreenRow(1)
target = lineNumber.querySelector('.icon-right')
target.dispatchEvent(buildClickEvent(target))
expect(lineNumberHasClass(1, 'folded')).toBe false
it "does not fold when the line number node is clicked", ->
lineNumber = component.lineNumberNodeForScreenRow(1)
lineNumber.dispatchEvent(buildClickEvent(lineNumber))
expect(lineNumberHasClass(1, 'folded')).toBe false
describe "cursor-line decorations", ->
cursor = null
beforeEach ->
cursor = editor.getCursor()
it "modifies the cursor-line decoration when the cursor moves", ->
cursor.setScreenPosition([0, 0])
expect(lineNumberHasClass(0, 'cursor-line')).toBe true
cursor.setScreenPosition([1, 0])
expect(lineNumberHasClass(0, 'cursor-line')).toBe false
expect(lineNumberHasClass(1, 'cursor-line')).toBe true
it "updates cursor-line decorations for multiple cursors", ->
cursor.setScreenPosition([2, 0])
cursor2 = editor.addCursorAtScreenPosition([8, 0])
cursor3 = editor.addCursorAtScreenPosition([10, 0])
expect(lineNumberHasClass(2, 'cursor-line')).toBe true
expect(lineNumberHasClass(8, 'cursor-line')).toBe true
expect(lineNumberHasClass(10, 'cursor-line')).toBe true
cursor2.destroy()
expect(lineNumberHasClass(2, 'cursor-line')).toBe true
expect(lineNumberHasClass(8, 'cursor-line')).toBe false
expect(lineNumberHasClass(10, 'cursor-line')).toBe true
cursor3.destroy()
expect(lineNumberHasClass(2, 'cursor-line')).toBe true
expect(lineNumberHasClass(8, 'cursor-line')).toBe false
expect(lineNumberHasClass(10, 'cursor-line')).toBe false
it "adds cursor-line decorations to multiple lines when a selection is performed", ->
cursor.setScreenPosition([1, 0])
editor.selectDown(2)
expect(lineNumberHasClass(0, 'cursor-line')).toBe false
expect(lineNumberHasClass(1, 'cursor-line')).toBe true
expect(lineNumberHasClass(2, 'cursor-line')).toBe true
expect(lineNumberHasClass(3, 'cursor-line')).toBe true
expect(lineNumberHasClass(4, 'cursor-line')).toBe false
describe "when decorations are used", ->
describe "when decorations are applied to buffer rows", ->
it "renders line number classes based on the decorations on their buffer row", ->
node.style.height = 4.5 * lineHeightInPixels + 'px'
component.measureScrollView()
expect(component.lineNumberNodeForScreenRow(9)).not.toBeDefined()
editor.addDecorationToBufferRow(9, type: 'gutter', class: 'fancy-class')
editor.addDecorationToBufferRow(9, type: 'someother-type', class: 'nope-class')
verticalScrollbarNode.scrollTop = 2.5 * lineHeightInPixels
verticalScrollbarNode.dispatchEvent(new UIEvent('scroll'))
expect(lineNumberHasClass(9, 'fancy-class')).toBe true
expect(lineNumberHasClass(9, 'nope-class')).toBe false
it "renders updates to gutter decorations", ->
editor.addDecorationToBufferRow(2, type: 'gutter', class: 'fancy-class')
editor.addDecorationToBufferRow(2, type: 'someother-type', class: 'nope-class')
waitsFor -> not component.decorationChangedImmediate?
runs ->
expect(lineNumberHasClass(2, 'fancy-class')).toBe true
expect(lineNumberHasClass(2, 'nope-class')).toBe false
editor.removeDecorationFromBufferRow(2, type: 'gutter', class: 'fancy-class')
editor.removeDecorationFromBufferRow(2, type: 'someother-type', class: 'nope-class')
waitsFor -> not component.decorationChangedImmediate?
runs ->
expect(lineNumberHasClass(2, 'fancy-class')).toBe false
expect(lineNumberHasClass(2, 'nope-class')).toBe false
it "renders decorations on soft-wrapped line numbers when softWrap is true", ->
editor.addDecorationToBufferRow(1, type: 'gutter', class: 'no-wrap')
editor.addDecorationToBufferRow(1, type: 'gutter', class: 'wrap-me', softWrap: true)
editor.setSoftWrap(true)
node.style.height = 4.5 * lineHeightInPixels + 'px'
node.style.width = 30 * charWidth + 'px'
component.measureScrollView()
expect(lineNumberHasClass(2, 'no-wrap')).toBe true
expect(lineNumberHasClass(2, 'wrap-me')).toBe true
expect(lineNumberHasClass(3, 'no-wrap')).toBe false
expect(lineNumberHasClass(3, 'wrap-me')).toBe true
# should remove the wrapped decorations
editor.removeDecorationFromBufferRow(1, type: 'gutter', class: 'no-wrap')
editor.removeDecorationFromBufferRow(1, type: 'gutter', class: 'wrap-me')
waitsFor -> not component.decorationChangedImmediate?
runs ->
expect(lineNumberHasClass(2, 'no-wrap')).toBe false
expect(lineNumberHasClass(2, 'wrap-me')).toBe false
expect(lineNumberHasClass(3, 'no-wrap')).toBe false
expect(lineNumberHasClass(3, 'wrap-me')).toBe false
# should add them back when the nodes are not recreated
editor.addDecorationToBufferRow(1, type: 'gutter', class: 'no-wrap')
editor.addDecorationToBufferRow(1, type: 'gutter', class: 'wrap-me', softWrap: true)
waitsFor -> not component.decorationChangedImmediate?
runs ->
expect(lineNumberHasClass(2, 'no-wrap')).toBe true
expect(lineNumberHasClass(2, 'wrap-me')).toBe true
expect(lineNumberHasClass(3, 'no-wrap')).toBe false
expect(lineNumberHasClass(3, 'wrap-me')).toBe true
describe "when decorations are applied to markers", ->
{marker, decoration} = {}
beforeEach ->
marker = editor.displayBuffer.markBufferRange([[2, 13], [3, 15]], class: 'my-marker', invalidate: 'inside')
decoration = {type: 'gutter', class: 'someclass'}
editor.addDecorationForMarker(marker, decoration)
waitsFor -> not component.decorationChangedImmediate?
it "updates line number classes when the marker moves", ->
expect(lineNumberHasClass(1, 'someclass')).toBe false
expect(lineNumberHasClass(2, 'someclass')).toBe true
expect(lineNumberHasClass(3, 'someclass')).toBe true
expect(lineNumberHasClass(4, 'someclass')).toBe false
editor.getBuffer().insert([0, 0], '\n')
waitsFor -> not component.decorationChangedImmediate?
runs ->
expect(lineNumberHasClass(2, 'someclass')).toBe false
expect(lineNumberHasClass(3, 'someclass')).toBe true
expect(lineNumberHasClass(4, 'someclass')).toBe true
expect(lineNumberHasClass(5, 'someclass')).toBe false
editor.getBuffer().deleteRows(0, 1)
waitsFor -> not component.decorationChangedImmediate?
runs ->
expect(lineNumberHasClass(0, 'someclass')).toBe false
expect(lineNumberHasClass(1, 'someclass')).toBe true
expect(lineNumberHasClass(2, 'someclass')).toBe true
expect(lineNumberHasClass(3, 'someclass')).toBe false
it "removes line number classes when a decoration's marker is invalidated", ->
editor.getBuffer().insert([3, 2], 'n')
waitsFor -> not component.decorationChangedImmediate?
runs ->
expect(marker.isValid()).toBe false
expect(lineNumberHasClass(1, 'someclass')).toBe false
expect(lineNumberHasClass(2, 'someclass')).toBe false
expect(lineNumberHasClass(3, 'someclass')).toBe false
expect(lineNumberHasClass(4, 'someclass')).toBe false
editor.getBuffer().undo()
waitsFor -> not component.decorationChangedImmediate?
runs ->
expect(marker.isValid()).toBe true
expect(lineNumberHasClass(1, 'someclass')).toBe false
expect(lineNumberHasClass(2, 'someclass')).toBe true
expect(lineNumberHasClass(3, 'someclass')).toBe true
expect(lineNumberHasClass(4, 'someclass')).toBe false
it "removes the classes and unsubscribes from the marker when decoration is removed", ->
editor.removeDecorationForMarker(marker, decoration)
waitsFor -> not component.decorationChangedImmediate?
runs ->
expect(lineNumberHasClass(1, 'someclass')).toBe false
expect(lineNumberHasClass(2, 'someclass')).toBe false
expect(lineNumberHasClass(3, 'someclass')).toBe false
expect(lineNumberHasClass(4, 'someclass')).toBe false
editor.getBuffer().insert([0, 0], '\n')
waitsFor -> not component.decorationChangedImmediate?
runs ->
expect(lineNumberHasClass(2, 'someclass')).toBe false
expect(lineNumberHasClass(3, 'someclass')).toBe false
it "removes the line number classes when the decoration's marker is destroyed", ->
marker.destroy()
waitsFor -> not component.decorationChangedImmediate?
runs ->
expect(lineNumberHasClass(1, 'someclass')).toBe false
expect(lineNumberHasClass(2, 'someclass')).toBe false
expect(lineNumberHasClass(3, 'someclass')).toBe false
expect(lineNumberHasClass(4, 'someclass')).toBe false
describe "cursor rendering", ->
it "renders the currently visible cursors, translated relative to the scroll position", ->
cursor1 = editor.getCursor()
cursor1.setScreenPosition([0, 5])
node.style.height = 4.5 * lineHeightInPixels + 'px'
node.style.width = 20 * lineHeightInPixels + 'px'
component.measureScrollView()
cursorNodes = node.querySelectorAll('.cursor')
expect(cursorNodes.length).toBe 1
expect(cursorNodes[0].offsetHeight).toBe lineHeightInPixels
expect(cursorNodes[0].offsetWidth).toBe charWidth
expect(cursorNodes[0].style['-webkit-transform']).toBe "translate3d(#{5 * charWidth}px, #{0 * lineHeightInPixels}px, 0px)"
cursor2 = editor.addCursorAtScreenPosition([8, 11])
cursor3 = editor.addCursorAtScreenPosition([4, 10])
cursorNodes = node.querySelectorAll('.cursor')
expect(cursorNodes.length).toBe 2
expect(cursorNodes[0].offsetTop).toBe 0
expect(cursorNodes[0].style['-webkit-transform']).toBe "translate3d(#{5 * charWidth}px, #{0 * lineHeightInPixels}px, 0px)"
expect(cursorNodes[1].style['-webkit-transform']).toBe "translate3d(#{10 * charWidth}px, #{4 * lineHeightInPixels}px, 0px)"
verticalScrollbarNode.scrollTop = 4.5 * lineHeightInPixels
verticalScrollbarNode.dispatchEvent(new UIEvent('scroll'))
horizontalScrollbarNode.scrollLeft = 3.5 * charWidth
horizontalScrollbarNode.dispatchEvent(new UIEvent('scroll'))
cursorNodes = node.querySelectorAll('.cursor')
expect(cursorNodes.length).toBe 2
expect(cursorNodes[0].style['-webkit-transform']).toBe "translate3d(#{(11 - 3.5) * charWidth}px, #{(8 - 4.5) * lineHeightInPixels}px, 0px)"
expect(cursorNodes[1].style['-webkit-transform']).toBe "translate3d(#{(10 - 3.5) * charWidth}px, #{(4 - 4.5) * lineHeightInPixels}px, 0px)"
cursor3.destroy()
cursorNodes = node.querySelectorAll('.cursor')
expect(cursorNodes.length).toBe 1
expect(cursorNodes[0].style['-webkit-transform']).toBe "translate3d(#{(11 - 3.5) * charWidth}px, #{(6 - 2.5) * lineHeightInPixels}px, 0px)"
it "accounts for character widths when positioning cursors", ->
atom.config.set('editor.fontFamily', 'sans-serif')
editor.setCursorScreenPosition([0, 16])
cursor = node.querySelector('.cursor')
cursorRect = cursor.getBoundingClientRect()
cursorLocationTextNode = component.lineNodeForScreenRow(0).querySelector('.storage.type.function.js').firstChild
range = document.createRange()
range.setStart(cursorLocationTextNode, 0)
range.setEnd(cursorLocationTextNode, 1)
rangeRect = range.getBoundingClientRect()
expect(cursorRect.left).toBe rangeRect.left
expect(cursorRect.width).toBe rangeRect.width
it "sets the cursor to the default character width at the end of a line", ->
editor.setCursorScreenPosition([0, Infinity])
cursorNode = node.querySelector('.cursor')
expect(cursorNode.offsetWidth).toBe charWidth
it "gives the cursor a non-zero width even if it's inside atomic tokens", ->
editor.setCursorScreenPosition([1, 0])
cursorNode = node.querySelector('.cursor')
expect(cursorNode.offsetWidth).toBe charWidth
it "blinks cursors when they aren't moving", ->
spyOn(_._, 'now').andCallFake -> window.now # Ensure _.debounce is based on our fake spec timeline
cursorsNode = node.querySelector('.cursors')
expect(cursorsNode.classList.contains('blink-off')).toBe false
advanceClock(component.props.cursorBlinkPeriod / 2)
expect(cursorsNode.classList.contains('blink-off')).toBe true
advanceClock(component.props.cursorBlinkPeriod / 2)
expect(cursorsNode.classList.contains('blink-off')).toBe false
# Stop blinking after moving the cursor
editor.moveCursorRight()
expect(cursorsNode.classList.contains('blink-off')).toBe false
advanceClock(component.props.cursorBlinkResumeDelay)
advanceClock(component.props.cursorBlinkPeriod / 2)
expect(cursorsNode.classList.contains('blink-off')).toBe true
it "does not render cursors that are associated with non-empty selections", ->
editor.setSelectedScreenRange([[0, 4], [4, 6]])
editor.addCursorAtScreenPosition([6, 8])
cursorNodes = node.querySelectorAll('.cursor')
expect(cursorNodes.length).toBe 1
expect(cursorNodes[0].style['-webkit-transform']).toBe "translate3d(#{8 * charWidth}px, #{6 * lineHeightInPixels}px, 0px)"
it "updates cursor positions when the line height changes", ->
editor.setCursorBufferPosition([1, 10])
component.setLineHeight(2)
cursorNode = node.querySelector('.cursor')
expect(cursorNode.style['-webkit-transform']).toBe "translate3d(#{10 * editor.getDefaultCharWidth()}px, #{editor.getLineHeightInPixels()}px, 0px)"
it "updates cursor positions when the font size changes", ->
editor.setCursorBufferPosition([1, 10])
component.setFontSize(10)
cursorNode = node.querySelector('.cursor')
expect(cursorNode.style['-webkit-transform']).toBe "translate3d(#{10 * editor.getDefaultCharWidth()}px, #{editor.getLineHeightInPixels()}px, 0px)"
it "updates cursor positions when the font family changes", ->
editor.setCursorBufferPosition([1, 10])
component.setFontFamily('sans-serif')
cursorNode = node.querySelector('.cursor')
{left} = editor.pixelPositionForScreenPosition([1, 10])
expect(cursorNode.style['-webkit-transform']).toBe "translate3d(#{left}px, #{editor.getLineHeightInPixels()}px, 0px)"
describe "selection rendering", ->
[scrollViewNode, scrollViewClientLeft] = []
beforeEach ->
scrollViewNode = node.querySelector('.scroll-view')
scrollViewClientLeft = node.querySelector('.scroll-view').getBoundingClientRect().left
it "renders 1 region for 1-line selections", ->
# 1-line selection
editor.setSelectedScreenRange([[1, 6], [1, 10]])
regions = node.querySelectorAll('.selection .region')
expect(regions.length).toBe 1
regionRect = regions[0].getBoundingClientRect()
expect(regionRect.top).toBe 1 * lineHeightInPixels
expect(regionRect.height).toBe 1 * lineHeightInPixels
expect(regionRect.left).toBe scrollViewClientLeft + 6 * charWidth
expect(regionRect.width).toBe 4 * charWidth
it "renders 2 regions for 2-line selections", ->
editor.setSelectedScreenRange([[1, 6], [2, 10]])
regions = node.querySelectorAll('.selection .region')
expect(regions.length).toBe 2
region1Rect = regions[0].getBoundingClientRect()
expect(region1Rect.top).toBe 1 * lineHeightInPixels
expect(region1Rect.height).toBe 1 * lineHeightInPixels
expect(region1Rect.left).toBe scrollViewClientLeft + 6 * charWidth
expect(region1Rect.right).toBe scrollViewNode.getBoundingClientRect().right
region2Rect = regions[1].getBoundingClientRect()
expect(region2Rect.top).toBe 2 * lineHeightInPixels
expect(region2Rect.height).toBe 1 * lineHeightInPixels
expect(region2Rect.left).toBe scrollViewClientLeft + 0
expect(region2Rect.width).toBe 10 * charWidth
it "renders 3 regions for selections with more than 2 lines", ->
editor.setSelectedScreenRange([[1, 6], [5, 10]])
regions = node.querySelectorAll('.selection .region')
expect(regions.length).toBe 3
region1Rect = regions[0].getBoundingClientRect()
expect(region1Rect.top).toBe 1 * lineHeightInPixels
expect(region1Rect.height).toBe 1 * lineHeightInPixels
expect(region1Rect.left).toBe scrollViewClientLeft + 6 * charWidth
expect(region1Rect.right).toBe scrollViewNode.getBoundingClientRect().right
region2Rect = regions[1].getBoundingClientRect()
expect(region2Rect.top).toBe 2 * lineHeightInPixels
expect(region2Rect.height).toBe 3 * lineHeightInPixels
expect(region2Rect.left).toBe scrollViewClientLeft + 0
expect(region2Rect.right).toBe scrollViewNode.getBoundingClientRect().right
region3Rect = regions[2].getBoundingClientRect()
expect(region3Rect.top).toBe 5 * lineHeightInPixels
expect(region3Rect.height).toBe 1 * lineHeightInPixels
expect(region3Rect.left).toBe scrollViewClientLeft + 0
expect(region3Rect.width).toBe 10 * charWidth
it "does not render empty selections unless they are the first selection (to prevent a Chromium rendering artifact caused by removing it)", ->
editor.addSelectionForBufferRange([[2, 2], [2, 2]])
expect(editor.getSelection(0).isEmpty()).toBe true
expect(editor.getSelection(1).isEmpty()).toBe true
expect(node.querySelectorAll('.selection').length).toBe 1
it "updates selections when the line height changes", ->
editor.setSelectedBufferRange([[1, 6], [1, 10]])
component.setLineHeight(2)
selectionNode = node.querySelector('.region')
expect(selectionNode.offsetTop).toBe editor.getLineHeightInPixels()
it "updates selections when the font size changes", ->
editor.setSelectedBufferRange([[1, 6], [1, 10]])
component.setFontSize(10)
selectionNode = node.querySelector('.region')
expect(selectionNode.offsetTop).toBe editor.getLineHeightInPixels()
expect(selectionNode.offsetLeft).toBe 6 * editor.getDefaultCharWidth()
it "updates selections when the font family changes", ->
editor.setSelectedBufferRange([[1, 6], [1, 10]])
component.setFontFamily('sans-serif')
selectionNode = node.querySelector('.region')
expect(selectionNode.offsetTop).toBe editor.getLineHeightInPixels()
expect(selectionNode.offsetLeft).toBe editor.pixelPositionForScreenPosition([1, 6]).left
describe "hidden input field", ->
it "renders the hidden input field at the position of the last cursor if the cursor is on screen and the editor is focused", ->
editor.setVerticalScrollMargin(0)
editor.setHorizontalScrollMargin(0)
inputNode = node.querySelector('.hidden-input')
node.style.height = 5 * lineHeightInPixels + 'px'
node.style.width = 10 * charWidth + 'px'
component.measureScrollView()
expect(editor.getCursorScreenPosition()).toEqual [0, 0]
editor.setScrollTop(3 * lineHeightInPixels)
editor.setScrollLeft(3 * charWidth)
expect(inputNode.offsetTop).toBe 0
expect(inputNode.offsetLeft).toBe 0
# In bounds, not focused
editor.setCursorBufferPosition([5, 4])
expect(inputNode.offsetTop).toBe 0
expect(inputNode.offsetLeft).toBe 0
# In bounds and focused
inputNode.focus()
expect(inputNode.offsetTop).toBe (5 * lineHeightInPixels) - editor.getScrollTop()
expect(inputNode.offsetLeft).toBe (4 * charWidth) - editor.getScrollLeft()
# In bounds, not focused
inputNode.blur()
expect(inputNode.offsetTop).toBe 0
expect(inputNode.offsetLeft).toBe 0
# Out of bounds, not focused
editor.setCursorBufferPosition([1, 2])
expect(inputNode.offsetTop).toBe 0
expect(inputNode.offsetLeft).toBe 0
# Out of bounds, focused
inputNode.focus()
expect(inputNode.offsetTop).toBe 0
expect(inputNode.offsetLeft).toBe 0
describe "mouse interactions", ->
linesNode = null
beforeEach ->
delayAnimationFrames = true
linesNode = node.querySelector('.lines')
describe "when a non-folded line is single-clicked", ->
describe "when no modifier keys are held down", ->
it "moves the cursor to the nearest screen position", ->
node.style.height = 4.5 * lineHeightInPixels + 'px'
node.style.width = 10 * charWidth + 'px'
component.measureScrollView()
editor.setScrollTop(3.5 * lineHeightInPixels)
editor.setScrollLeft(2 * charWidth)
linesNode.dispatchEvent(buildMouseEvent('mousedown', clientCoordinatesForScreenPosition([4, 8])))
expect(editor.getCursorScreenPosition()).toEqual [4, 8]
describe "when the shift key is held down", ->
it "selects to the nearest screen position", ->
editor.setCursorScreenPosition([3, 4])
linesNode.dispatchEvent(buildMouseEvent('mousedown', clientCoordinatesForScreenPosition([5, 6]), shiftKey: true))
expect(editor.getSelectedScreenRange()).toEqual [[3, 4], [5, 6]]
describe "when the command key is held down", ->
it "adds a cursor at the nearest screen position", ->
editor.setCursorScreenPosition([3, 4])
linesNode.dispatchEvent(buildMouseEvent('mousedown', clientCoordinatesForScreenPosition([5, 6]), metaKey: true))
expect(editor.getSelectedScreenRanges()).toEqual [[[3, 4], [3, 4]], [[5, 6], [5, 6]]]
describe "when a non-folded line is double-clicked", ->
it "selects the word containing the nearest screen position", ->
linesNode.dispatchEvent(buildMouseEvent('mousedown', clientCoordinatesForScreenPosition([5, 10]), detail: 2))
linesNode.dispatchEvent(buildMouseEvent('mouseup'))
expect(editor.getSelectedScreenRange()).toEqual [[5, 6], [5, 13]]
linesNode.dispatchEvent(buildMouseEvent('mousedown', clientCoordinatesForScreenPosition([6, 6]), detail: 1))
linesNode.dispatchEvent(buildMouseEvent('mouseup'))
expect(editor.getSelectedScreenRange()).toEqual [[6, 6], [6, 6]]
linesNode.dispatchEvent(buildMouseEvent('mousedown', clientCoordinatesForScreenPosition([8, 8]), detail: 1, shiftKey: true))
linesNode.dispatchEvent(buildMouseEvent('mouseup'))
expect(editor.getSelectedScreenRange()).toEqual [[6, 6], [8, 8]]
describe "when a non-folded line is triple-clicked", ->
it "selects the line containing the nearest screen position", ->
linesNode.dispatchEvent(buildMouseEvent('mousedown', clientCoordinatesForScreenPosition([5, 10]), detail: 3))
linesNode.dispatchEvent(buildMouseEvent('mouseup'))
expect(editor.getSelectedScreenRange()).toEqual [[5, 0], [6, 0]]
linesNode.dispatchEvent(buildMouseEvent('mousedown', clientCoordinatesForScreenPosition([6, 6]), detail: 1, shiftKey: true))
linesNode.dispatchEvent(buildMouseEvent('mouseup'))
expect(editor.getSelectedScreenRange()).toEqual [[5, 0], [7, 0]]
linesNode.dispatchEvent(buildMouseEvent('mousedown', clientCoordinatesForScreenPosition([7, 5]), detail: 1))
linesNode.dispatchEvent(buildMouseEvent('mouseup'))
linesNode.dispatchEvent(buildMouseEvent('mousedown', clientCoordinatesForScreenPosition([8, 8]), detail: 1, shiftKey: true))
linesNode.dispatchEvent(buildMouseEvent('mouseup'))
expect(editor.getSelectedScreenRange()).toEqual [[7, 5], [8, 8]]
describe "when the mouse is clicked and dragged", ->
it "selects to the nearest screen position until the mouse button is released", ->
linesNode.dispatchEvent(buildMouseEvent('mousedown', clientCoordinatesForScreenPosition([2, 4]), which: 1))
linesNode.dispatchEvent(buildMouseEvent('mousemove', clientCoordinatesForScreenPosition([6, 8]), which: 1))
nextAnimationFrame()
expect(editor.getSelectedScreenRange()).toEqual [[2, 4], [6, 8]]
linesNode.dispatchEvent(buildMouseEvent('mousemove', clientCoordinatesForScreenPosition([10, 0]), which: 1))
nextAnimationFrame()
expect(editor.getSelectedScreenRange()).toEqual [[2, 4], [10, 0]]
linesNode.dispatchEvent(buildMouseEvent('mouseup'))
linesNode.dispatchEvent(buildMouseEvent('mousemove', clientCoordinatesForScreenPosition([12, 0]), which: 1))
nextAnimationFrame()
expect(editor.getSelectedScreenRange()).toEqual [[2, 4], [10, 0]]
it "stops selecting if the mouse is dragged into the dev tools", ->
linesNode.dispatchEvent(buildMouseEvent('mousedown', clientCoordinatesForScreenPosition([2, 4]), which: 1))
linesNode.dispatchEvent(buildMouseEvent('mousemove', clientCoordinatesForScreenPosition([6, 8]), which: 1))
nextAnimationFrame()
expect(editor.getSelectedScreenRange()).toEqual [[2, 4], [6, 8]]
linesNode.dispatchEvent(buildMouseEvent('mousemove', clientCoordinatesForScreenPosition([10, 0]), which: 0))
nextAnimationFrame()
expect(editor.getSelectedScreenRange()).toEqual [[2, 4], [6, 8]]
linesNode.dispatchEvent(buildMouseEvent('mousemove', clientCoordinatesForScreenPosition([8, 0]), which: 1))
nextAnimationFrame()
expect(editor.getSelectedScreenRange()).toEqual [[2, 4], [6, 8]]
clientCoordinatesForScreenPosition = (screenPosition) ->
positionOffset = editor.pixelPositionForScreenPosition(screenPosition)
scrollViewClientRect = node.querySelector('.scroll-view').getBoundingClientRect()
clientX = scrollViewClientRect.left + positionOffset.left - editor.getScrollLeft()
clientY = scrollViewClientRect.top + positionOffset.top - editor.getScrollTop()
{clientX, clientY}
describe "focus handling", ->
inputNode = null
beforeEach ->
inputNode = node.querySelector('.hidden-input')
it "transfers focus to the hidden input", ->
expect(document.activeElement).toBe document.body
node.focus()
expect(document.activeElement).toBe inputNode
it "adds the 'is-focused' class to the editor when the hidden input is focused", ->
expect(document.activeElement).toBe document.body
inputNode.focus()
expect(node.classList.contains('is-focused')).toBe true
expect(wrapperView.hasClass('is-focused')).toBe true
inputNode.blur()
expect(node.classList.contains('is-focused')).toBe false
expect(wrapperView.hasClass('is-focused')).toBe false
describe "selection handling", ->
cursor = null
beforeEach ->
cursor = editor.getCursor()
cursor.setScreenPosition([0, 0])
it "adds the 'has-selection' class to the editor when there is a selection", ->
expect(node.classList.contains('has-selection')).toBe false
editor.selectDown()
expect(node.classList.contains('has-selection')).toBe true
cursor.moveDown()
expect(node.classList.contains('has-selection')).toBe false
describe "scrolling", ->
it "updates the vertical scrollbar when the scrollTop is changed in the model", ->
node.style.height = 4.5 * lineHeightInPixels + 'px'
component.measureScrollView()
expect(verticalScrollbarNode.scrollTop).toBe 0
editor.setScrollTop(10)
expect(verticalScrollbarNode.scrollTop).toBe 10
it "updates the horizontal scrollbar and the x transform of the lines based on the scrollLeft of the model", ->
node.style.width = 30 * charWidth + 'px'
component.measureScrollView()
linesNode = node.querySelector('.lines')
expect(linesNode.style['-webkit-transform']).toBe "translate3d(0px, 0px, 0px)"
expect(horizontalScrollbarNode.scrollLeft).toBe 0
editor.setScrollLeft(100)
expect(linesNode.style['-webkit-transform']).toBe "translate3d(-100px, 0px, 0px)"
expect(horizontalScrollbarNode.scrollLeft).toBe 100
it "updates the scrollLeft of the model when the scrollLeft of the horizontal scrollbar changes", ->
node.style.width = 30 * charWidth + 'px'
component.measureScrollView()
expect(editor.getScrollLeft()).toBe 0
horizontalScrollbarNode.scrollLeft = 100
horizontalScrollbarNode.dispatchEvent(new UIEvent('scroll'))
expect(editor.getScrollLeft()).toBe 100
it "does not obscure the last line with the horizontal scrollbar", ->
node.style.height = 4.5 * lineHeightInPixels + 'px'
node.style.width = 10 * charWidth + 'px'
component.measureScrollView()
editor.setScrollBottom(editor.getScrollHeight())
lastLineNode = component.lineNodeForScreenRow(editor.getLastScreenRow())
bottomOfLastLine = lastLineNode.getBoundingClientRect().bottom
topOfHorizontalScrollbar = horizontalScrollbarNode.getBoundingClientRect().top
expect(bottomOfLastLine).toBe topOfHorizontalScrollbar
# Scroll so there's no space below the last line when the horizontal scrollbar disappears
node.style.width = 100 * charWidth + 'px'
component.measureScrollView()
bottomOfLastLine = lastLineNode.getBoundingClientRect().bottom
bottomOfEditor = node.getBoundingClientRect().bottom
expect(bottomOfLastLine).toBe bottomOfEditor
it "does not obscure the last character of the longest line with the vertical scrollbar", ->
node.style.height = 7 * lineHeightInPixels + 'px'
node.style.width = 10 * charWidth + 'px'
component.measureScrollView()
editor.setScrollLeft(Infinity)
rightOfLongestLine = component.lineNodeForScreenRow(6).getBoundingClientRect().right
leftOfVerticalScrollbar = verticalScrollbarNode.getBoundingClientRect().left
expect(Math.round(rightOfLongestLine)).toBe leftOfVerticalScrollbar - 1 # Leave 1 px so the cursor is visible on the end of the line
it "only displays dummy scrollbars when scrollable in that direction", ->
expect(verticalScrollbarNode.style.display).toBe 'none'
expect(horizontalScrollbarNode.style.display).toBe 'none'
node.style.height = 4.5 * lineHeightInPixels + 'px'
node.style.width = '1000px'
component.measureScrollView()
expect(verticalScrollbarNode.style.display).toBe ''
expect(horizontalScrollbarNode.style.display).toBe 'none'
node.style.width = 10 * charWidth + 'px'
component.measureScrollView()
expect(verticalScrollbarNode.style.display).toBe ''
expect(horizontalScrollbarNode.style.display).toBe ''
node.style.height = 20 * lineHeightInPixels + 'px'
component.measureScrollView()
expect(verticalScrollbarNode.style.display).toBe 'none'
expect(horizontalScrollbarNode.style.display).toBe ''
it "makes the dummy scrollbar divs only as tall/wide as the actual scrollbars", ->
node.style.height = 4 * lineHeightInPixels + 'px'
node.style.width = 10 * charWidth + 'px'
component.measureScrollView()
atom.themes.applyStylesheet "test", """
::-webkit-scrollbar {
width: 8px;
height: 8px;
}
"""
scrollbarCornerNode = node.querySelector('.scrollbar-corner')
expect(verticalScrollbarNode.offsetWidth).toBe 8
expect(horizontalScrollbarNode.offsetHeight).toBe 8
expect(scrollbarCornerNode.offsetWidth).toBe 8
expect(scrollbarCornerNode.offsetHeight).toBe 8
it "assigns the bottom/right of the scrollbars to the width of the opposite scrollbar if it is visible", ->
scrollbarCornerNode = node.querySelector('.scrollbar-corner')
expect(verticalScrollbarNode.style.bottom).toBe ''
expect(horizontalScrollbarNode.style.right).toBe ''
node.style.height = 4.5 * lineHeightInPixels + 'px'
node.style.width = '1000px'
component.measureScrollView()
expect(verticalScrollbarNode.style.bottom).toBe ''
expect(horizontalScrollbarNode.style.right).toBe verticalScrollbarNode.offsetWidth + 'px'
expect(scrollbarCornerNode.style.display).toBe 'none'
node.style.width = 10 * charWidth + 'px'
component.measureScrollView()
expect(verticalScrollbarNode.style.bottom).toBe horizontalScrollbarNode.offsetHeight + 'px'
expect(horizontalScrollbarNode.style.right).toBe verticalScrollbarNode.offsetWidth + 'px'
expect(scrollbarCornerNode.style.display).toBe ''
node.style.height = 20 * lineHeightInPixels + 'px'
component.measureScrollView()
expect(verticalScrollbarNode.style.bottom).toBe horizontalScrollbarNode.offsetHeight + 'px'
expect(horizontalScrollbarNode.style.right).toBe ''
expect(scrollbarCornerNode.style.display).toBe 'none'
it "accounts for the width of the gutter in the scrollWidth of the horizontal scrollbar", ->
gutterNode = node.querySelector('.gutter')
node.style.width = 10 * charWidth + 'px'
component.measureScrollView()
expect(horizontalScrollbarNode.scrollWidth).toBe gutterNode.offsetWidth + editor.getScrollWidth()
describe "mousewheel events", ->
it "updates the scrollLeft or scrollTop on mousewheel events depending on which delta is greater (x or y)", ->
node.style.height = 4.5 * lineHeightInPixels + 'px'
node.style.width = 20 * charWidth + 'px'
component.measureScrollView()
expect(verticalScrollbarNode.scrollTop).toBe 0
expect(horizontalScrollbarNode.scrollLeft).toBe 0
node.dispatchEvent(new WheelEvent('mousewheel', wheelDeltaX: -5, wheelDeltaY: -10))
expect(verticalScrollbarNode.scrollTop).toBe 10
expect(horizontalScrollbarNode.scrollLeft).toBe 0
node.dispatchEvent(new WheelEvent('mousewheel', wheelDeltaX: -15, wheelDeltaY: -5))
expect(verticalScrollbarNode.scrollTop).toBe 10
expect(horizontalScrollbarNode.scrollLeft).toBe 15
describe "when the mousewheel event's target is a line", ->
it "keeps the line on the DOM if it is scrolled off-screen", ->
node.style.height = 4.5 * lineHeightInPixels + 'px'
node.style.width = 20 * charWidth + 'px'
component.measureScrollView()
lineNode = node.querySelector('.line')
wheelEvent = new WheelEvent('mousewheel', wheelDeltaX: 0, wheelDeltaY: -500)
Object.defineProperty(wheelEvent, 'target', get: -> lineNode)
node.dispatchEvent(wheelEvent)
expect(node.contains(lineNode)).toBe true
it "does not set the mouseWheelScreenRow if scrolling horizontally", ->
node.style.height = 4.5 * lineHeightInPixels + 'px'
node.style.width = 20 * charWidth + 'px'
component.measureScrollView()
lineNode = node.querySelector('.line')
wheelEvent = new WheelEvent('mousewheel', wheelDeltaX: 10, wheelDeltaY: 0)
Object.defineProperty(wheelEvent, 'target', get: -> lineNode)
node.dispatchEvent(wheelEvent)
expect(component.mouseWheelScreenRow).toBe null
it "clears the mouseWheelScreenRow after a delay even if the event does not cause scrolling", ->
spyOn(_._, 'now').andCallFake -> window.now # Ensure _.debounce is based on our fake spec timeline
expect(editor.getScrollTop()).toBe 0
lineNode = node.querySelector('.line')
wheelEvent = new WheelEvent('mousewheel', wheelDeltaX: 0, wheelDeltaY: 10)
Object.defineProperty(wheelEvent, 'target', get: -> lineNode)
node.dispatchEvent(wheelEvent)
expect(editor.getScrollTop()).toBe 0
expect(component.mouseWheelScreenRow).toBe 0
advanceClock(component.mouseWheelScreenRowClearDelay)
expect(component.mouseWheelScreenRow).toBe null
it "does not preserve the line if it is on screen", ->
expect(node.querySelectorAll('.line-number').length).toBe 14 # dummy line
lineNodes = node.querySelectorAll('.line')
expect(lineNodes.length).toBe 13
lineNode = lineNodes[0]
wheelEvent = new WheelEvent('mousewheel', wheelDeltaX: 0, wheelDeltaY: 100) # goes nowhere, we're already at scrollTop 0
Object.defineProperty(wheelEvent, 'target', get: -> lineNode)
node.dispatchEvent(wheelEvent)
expect(component.mouseWheelScreenRow).toBe 0
editor.insertText("hello")
expect(node.querySelectorAll('.line-number').length).toBe 14 # dummy line
expect(node.querySelectorAll('.line').length).toBe 13
describe "when the mousewheel event's target is a line number", ->
it "keeps the line number on the DOM if it is scrolled off-screen", ->
node.style.height = 4.5 * lineHeightInPixels + 'px'
node.style.width = 20 * charWidth + 'px'
component.measureScrollView()
lineNumberNode = node.querySelectorAll('.line-number')[1]
wheelEvent = new WheelEvent('mousewheel', wheelDeltaX: 0, wheelDeltaY: -500)
Object.defineProperty(wheelEvent, 'target', get: -> lineNumberNode)
node.dispatchEvent(wheelEvent)
expect(node.contains(lineNumberNode)).toBe true
describe "input events", ->
inputNode = null
beforeEach ->
inputNode = node.querySelector('.hidden-input')
it "inserts the newest character in the input's value into the buffer", ->
inputNode.value = 'x'
inputNode.dispatchEvent(new Event('input'))
expect(editor.lineForBufferRow(0)).toBe 'xvar quicksort = function () {'
inputNode.value = 'xy'
inputNode.dispatchEvent(new Event('input'))
expect(editor.lineForBufferRow(0)).toBe 'xyvar quicksort = function () {'
it "replaces the last character if the length of the input's value doesn't increase, as occurs with the accented character menu", ->
inputNode.value = 'u'
inputNode.dispatchEvent(new Event('input'))
expect(editor.lineForBufferRow(0)).toBe 'uvar quicksort = function () {'
inputNode.value = 'ü'
inputNode.dispatchEvent(new Event('input'))
expect(editor.lineForBufferRow(0)).toBe 'üvar quicksort = function () {'
it "does not handle input events when input is disabled", ->
component.setInputEnabled(false)
inputNode.value = 'x'
inputNode.dispatchEvent(new Event('input'))
expect(editor.lineForBufferRow(0)).toBe 'var quicksort = function () {'
describe "commands", ->
describe "editor:consolidate-selections", ->
it "consolidates selections on the editor model, aborting the key binding if there is only one selection", ->
spyOn(editor, 'consolidateSelections').andCallThrough()
event = new CustomEvent('editor:consolidate-selections', bubbles: true, cancelable: true)
event.abortKeyBinding = jasmine.createSpy("event.abortKeyBinding")
node.dispatchEvent(event)
expect(editor.consolidateSelections).toHaveBeenCalled()
expect(event.abortKeyBinding).toHaveBeenCalled()
describe "hiding and showing the editor", ->
describe "when fontSize, fontFamily, or lineHeight changes while the editor is hidden", ->
it "does not attempt to measure the lineHeight and defaultCharWidth until the editor becomes visible again", ->
wrapperView.hide()
initialLineHeightInPixels = editor.getLineHeightInPixels()
initialCharWidth = editor.getDefaultCharWidth()
component.setLineHeight(2)
expect(editor.getLineHeightInPixels()).toBe initialLineHeightInPixels
expect(editor.getDefaultCharWidth()).toBe initialCharWidth
component.setFontSize(22)
expect(editor.getLineHeightInPixels()).toBe initialLineHeightInPixels
expect(editor.getDefaultCharWidth()).toBe initialCharWidth
component.setFontFamily('monospace')
expect(editor.getLineHeightInPixels()).toBe initialLineHeightInPixels
expect(editor.getDefaultCharWidth()).toBe initialCharWidth
wrapperView.show()
expect(editor.getLineHeightInPixels()).not.toBe initialLineHeightInPixels
expect(editor.getDefaultCharWidth()).not.toBe initialCharWidth
describe "when lines are changed while the editor is hidden", ->
it "does not measure new characters until the editor is shown again", ->
editor.setText('')
wrapperView.hide()
editor.setText('var z = 1')
editor.setCursorBufferPosition([0, Infinity])
wrapperView.show()
expect(node.querySelector('.cursor').style['-webkit-transform']).toBe "translate3d(#{9 * charWidth}px, 0px, 0px)"
buildMouseEvent = (type, properties...) ->
properties = extend({bubbles: true, cancelable: true}, properties...)
event = new MouseEvent(type, properties)
Object.defineProperty(event, 'which', get: -> properties.which) if properties.which?
if properties.target?
Object.defineProperty(event, 'target', get: -> properties.target)
Object.defineProperty(event, 'srcObject', get: -> properties.target)
event