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|
Motions = require '../motions/index'
{Operator, Delete} = require './general-operators'
_ = require 'underscore-plus'
settings = require '../settings'
# The operation for text entered in input mode. Broadly speaking, input
# operators manage an undo transaction and set a @typingCompleted variable when
# it's done. When the input operation is completed, the typingCompleted variable
# tells the operation to repeat itself instead of enter insert mode.
class Insert extends Operator
standalone: true
isComplete: -> @standalone or super
confirmChanges: (changes) ->
bundler = new TransactionBundler(changes, @editor)
@typedText = bundler.buildInsertText()
execute: ->
if @typingCompleted
return unless @typedText? and @typedText.length > 0
@editor.insertText(@typedText, normalizeLineEndings: true, autoIndent: true)
for cursor in @editor.getCursors()
cursor.moveLeft() unless cursor.isAtBeginningOfLine()
else
@vimState.activateInsertMode()
@typingCompleted = true
return
inputOperator: -> true
class ReplaceMode extends Insert
execute: ->
if @typingCompleted
return unless @typedText? and @typedText.length > 0
@editor.transact =>
@editor.insertText(@typedText, normalizeLineEndings: true)
toDelete = @typedText.length - @countChars('\n', @typedText)
for selection in @editor.getSelections()
count = toDelete
selection.delete() while count-- and not selection.cursor.isAtEndOfLine()
for cursor in @editor.getCursors()
cursor.moveLeft() unless cursor.isAtBeginningOfLine()
else
@vimState.activateReplaceMode()
@typingCompleted = true
countChars: (char, string) ->
string.split(char).length - 1
class InsertAfter extends Insert
execute: ->
@editor.moveRight() unless @editor.getLastCursor().isAtEndOfLine()
super
class InsertAfterEndOfLine extends Insert
execute: ->
@editor.moveToEndOfLine()
super
class InsertAtBeginningOfLine extends Insert
execute: ->
@editor.moveToBeginningOfLine()
@editor.moveToFirstCharacterOfLine()
super
class InsertAboveWithNewline extends Insert
execute: ->
@vimState.setInsertionCheckpoint() unless @typingCompleted
@editor.insertNewlineAbove()
@editor.getLastCursor().skipLeadingWhitespace()
if @typingCompleted
# We'll have captured the inserted newline, but we want to do that
# over again by hand, or differing indentations will be wrong.
@typedText = @typedText.trimLeft()
return super
@vimState.activateInsertMode()
@typingCompleted = true
class InsertBelowWithNewline extends Insert
execute: ->
@vimState.setInsertionCheckpoint() unless @typingCompleted
@editor.insertNewlineBelow()
@editor.getLastCursor().skipLeadingWhitespace()
if @typingCompleted
# We'll have captured the inserted newline, but we want to do that
# over again by hand, or differing indentations will be wrong.
@typedText = @typedText.trimLeft()
return super
@vimState.activateInsertMode()
@typingCompleted = true
#
# Delete the following motion and enter insert mode to replace it.
#
class Change extends Insert
standalone: false
register: null
constructor: (@editor, @vimState) ->
@register = settings.defaultRegister()
# Public: Changes the text selected by the given motion.
#
# count - The number of times to execute.
#
# Returns nothing.
execute: (count) ->
if _.contains(@motion.select(count, excludeWhitespace: true), true)
# If we've typed, we're being repeated. If we're being repeated,
# undo transactions are already handled.
@vimState.setInsertionCheckpoint() unless @typingCompleted
@setTextRegister(@register, @editor.getSelectedText())
if @motion.isLinewise?() and not @typingCompleted
for selection in @editor.getSelections()
if selection.getBufferRange().end.row is 0
selection.deleteSelectedText()
else
selection.insertText("\n", autoIndent: true)
selection.cursor.moveLeft()
else
for selection in @editor.getSelections()
selection.deleteSelectedText()
return super if @typingCompleted
@vimState.activateInsertMode()
@typingCompleted = true
else
@vimState.activateNormalMode()
# Takes a transaction and turns it into a string of what was typed.
# This class is an implementation detail of Insert
class TransactionBundler
constructor: (@changes, @editor) ->
@start = null
@end = null
buildInsertText: ->
@addChange(change) for change in @changes
if @start?
@editor.getTextInBufferRange [@start, @end]
else
""
addChange: (change) ->
return unless change.newRange?
if @isRemovingFromPrevious(change)
@subtractRange change.oldRange
if @isAddingWithinPrevious(change)
@addRange change.newRange
isAddingWithinPrevious: (change) ->
return false unless @isAdding(change)
return true if @start is null
@start.isLessThanOrEqual(change.newRange.start) and
@end.isGreaterThanOrEqual(change.newRange.start)
isRemovingFromPrevious: (change) ->
return false unless @isRemoving(change) and @start?
@start.isLessThanOrEqual(change.oldRange.start) and
@end.isGreaterThanOrEqual(change.oldRange.end)
isAdding: (change) ->
change.newText.length > 0
isRemoving: (change) ->
change.oldText.length > 0
addRange: (range) ->
if @start is null
{@start, @end} = range
return
rows = range.end.row - range.start.row
if (range.start.row is @end.row)
cols = range.end.column - range.start.column
else
cols = 0
@end = @end.translate [rows, cols]
subtractRange: (range) ->
rows = range.end.row - range.start.row
if (range.end.row is @end.row)
cols = range.end.column - range.start.column
else
cols = 0
@end = @end.translate [-rows, -cols]
module.exports = {
Insert,
InsertAfter,
InsertAfterEndOfLine,
InsertAtBeginningOfLine,
InsertAboveWithNewline,
InsertBelowWithNewline,
ReplaceMode,
Change
}
|
