ScriptDocument

Show Deprecated
Not Creatable
Not Replicated

A ScriptDocument instance is a proxy of the document of a Studio Script Editor. It's different from the LuaSourceContainer open in the editor in that it represents the ephemeral state of an open document, and its representation is in a format that's more suited for reading and editing code than executing it. In particular, ScriptDocument reflects any changes that have been made to the open script in Drafts Mode, which the source property doesn't.

The Script Editor itself exists and changes on a different thread than any DataModel, so the ScriptDocument replicates the open Script Editor, but it isn't the open editor. Because of the replication, there's sometimes a slight delay between changing the text in the editor and updating the ScriptDocument. The delay usually occurs because the DataModel is busy, and it's almost always extremely small, but it still exists.

The existence of a ScriptDocument indicates that a document is open in the Script Editor. All ScriptDocument instances have ScriptEditorService as its parent. Each instance adheres to the following encoding conventions:

  • All text in ScriptDocument is UTF-8 encoded.
  • All line indices are 1-indexed.
  • All character indices are 1-indexed and count UTF-8 bytes, not graphemes, so the same warning from TextBox.CursorPosition applies: many Unicode characters take more than one byte.
  • All ranges are inclusive of their start position and exclusive of their end position, so start == end implies an empty range.

All APIs for ScriptDocument are at Plugin level security.

Summary

Methods

  • Yields
    Plugin Security

    Requests that the editor associated with this document close. Yields the current thread until the editor responds to the request.

  • EditTextAsync(newText : string,startLine : number,startCharacter : number,endLine : number,endCharacter : number):Tuple
    Yields
    Plugin Security

    Replaces the text in the specified range from (startLine, startColumn) to (endLine, endColumn) with newText.

  • ForceSetSelectionAsync(cursorLine : number,cursorCharacter : number,anchorLine : number?,anchorCharacter : number?):Tuple
    Yields
    Plugin Security

    Asks the editor to set its cursor selection to the argument values.

  • GetLine(lineIndex : number?):string
    Plugin Security

    Returns the text of the specified line. When no argument is provided, returns the line of the current cursor position.

  • Plugin Security

    Returns the number of lines in the document.

  • Plugin Security

    Returns the underlying LuaSourceContainer instance, if one exists, otherwise nil.

  • Plugin Security

    Gets the text selected in the editor, or an empty string if there is no selection.

  • Plugin Security

    Returns the last known selection of the Script Editor in the format: CursorLine, CursorChar, AnchorLine, AnchorChar. If the Script Editor has no selection, CursorLine == AnchorLine and CursorChar == AnchorChar.

  • Plugin Security

    Gets the larger of the cursor position and anchor. If the editor has no selection, they are the same value.

  • Plugin Security

    Gets the smaller of the cursor position and anchor. If the editor has no selection, they are the same value.

  • GetText(startLine : number?,startCharacter : number?,endLine : number?,endCharacter : number?):string
    Plugin Security

    Returns text from the open editor.

  • Plugin Security

    Returns the currently displayed line numbers in the editor change.

  • Plugin Security

    Returns whether or not the editor has any text selected.

  • Plugin Security

    Returns true if the ScriptDocument represents the Command bar.

  • Yields
    Plugin Security
  • RequestSetSelectionAsync(cursorLine : number,cursorCharacter : number,anchorLine : number?,anchorCharacter : number?):Tuple
    Yields
    Plugin Security

    Asks the editor to set its cursor selection to the argument values.

Events

Properties

Methods

CloseAsync

Yields
Plugin Security

Returns

Code Samples

ScriptDocument:CloseAsync

--!nocheck
-- Run the following code in the Command Bar
local ScriptEditorService = game:GetService("ScriptEditorService")
local documents = ScriptEditorService:GetScriptDocuments()
local scriptDocument
-- Find the first open script document
for _, document in documents do
-- The Command Bar can't be closed, so don't select it
if not document:IsCommandBar() then
scriptDocument = document
break
end
end
if scriptDocument then
local success, err = scriptDocument:CloseAsync()
if success then
print(`Closed {scriptDocument.Name}`)
else
warn(`Failed to close {scriptDocument.Name} because: {err}`)
end
else
print("No open scripts")
end

EditTextAsync

Yields
Plugin Security

Parameters

newText: string
startLine: number
startCharacter: number
endLine: number
endCharacter: number

Returns

ForceSetSelectionAsync

Yields
Plugin Security

Parameters

cursorLine: number
cursorCharacter: number
anchorLine: number
Default Value: "nil"
anchorCharacter: number
Default Value: "nil"

Returns

Code Samples

ScriptDocument:ForceSetSelectionAsync()

--!nocheck
-- Run the following code in the Command Bar while a script is open
local ScriptEditorService = game:GetService("ScriptEditorService")
local function getFirstOpenDocument()
local documents = ScriptEditorService:GetScriptDocuments()
for _, document in documents do
if not document:IsCommandBar() then
return document
end
end
return nil
end
local scriptDocument = getFirstOpenDocument()
if scriptDocument then
-- Get the text on the cursor's current line
local cursorLine = scriptDocument:GetSelection()
local lineText = scriptDocument:GetLine(cursorLine)
-- Force select the entire line of text
local success, err = scriptDocument:ForceSetSelectionAsync(cursorLine, 1, cursorLine, #lineText + 1)
if success then
print("Set selection!")
else
print(`Failed to set selection because: {err}`)
end
else
print("No scripts open")
end

GetLine

Plugin Security

Parameters

lineIndex: number
Default Value: "nil"

Returns

Code Samples

ScriptDocument.SelectionChanged and ScriptDocument:GetLine()

--!nocheck
-- Run the following code in the Command Bar while a script is open
local ScriptEditorService = game:GetService("ScriptEditorService")
local function getFirstOpenDocument()
local documents = ScriptEditorService:GetScriptDocuments()
for _, document in documents do
if not document:IsCommandBar() then
return document
end
end
return nil
end
local scriptDocument = getFirstOpenDocument()
if scriptDocument then
scriptDocument.SelectionChanged:Connect(function(positionLine, positionCharacter, anchorLine, anchorCharacter)
print(`Selected: Line {positionLine}, Char {positionCharacter}`)
print(`Anchor: Line {anchorLine}, Char {anchorCharacter}`)
local lineText = scriptDocument:GetLine(positionLine)
print(`Selected line text: {lineText}`)
end)
else
print("No scripts open")
end

GetLineCount

Plugin Security

Returns

Code Samples

ScriptDocument:GetLineCount()

--!nocheck
-- Run the following code in the Command Bar while a script is open
local ScriptEditorService = game:GetService("ScriptEditorService")
local function getFirstOpenDocument()
local documents = ScriptEditorService:GetScriptDocuments()
for _, document in documents do
if not document:IsCommandBar() then
return document
end
end
return nil
end
local scriptDocument = getFirstOpenDocument()
if scriptDocument then
local lineCount = scriptDocument:GetLineCount()
print(`The script has {lineCount} lines!`)
else
print("No scripts open")
end
Plugin Security

Returns

Code Samples

ScriptDocument:GetScript()

--!nocheck
-- Run the following code in the Command Bar while a script is open
local ScriptEditorService = game:GetService("ScriptEditorService")
local function getFirstOpenDocument()
local documents = ScriptEditorService:GetScriptDocuments()
for _, document in documents do
if not document:IsCommandBar() then
return document
end
end
return nil
end
local scriptDocument = getFirstOpenDocument()
if scriptDocument then
local openScript = scriptDocument:GetScript()
print(`Currently open script: {openScript:GetFullName()}`)
else
print("No scripts open")
end

GetSelectedText

Plugin Security

Returns

Code Samples

ScriptDocument:HasSelectedText() and :GetSelectedText()

--!nocheck
-- Run the following code in the Command Bar while a script is open
local ScriptEditorService = game:GetService("ScriptEditorService")
local function getFirstOpenDocument()
local documents = ScriptEditorService:GetScriptDocuments()
for _, document in documents do
if not document:IsCommandBar() then
return document
end
end
return nil
end
local scriptDocument = getFirstOpenDocument()
if scriptDocument then
scriptDocument.SelectionChanged:Connect(function()
if scriptDocument:HasSelectedText() then
local selectedText = scriptDocument:GetSelectedText()
print(`Currently selected text: {selectedText}`)
else
print("No text currently selected")
end
end)
else
print("No scripts open")
end

GetSelection

Plugin Security

Returns

GetSelectionEnd

Plugin Security

Returns

Code Samples

ScriptDocument:GetSelectionStart() and :GetSelectionEnd()

--!nocheck
-- Run the following code in the Command Bar while a script is open
local ScriptEditorService = game:GetService("ScriptEditorService")
local function getFirstOpenDocument()
local documents = ScriptEditorService:GetScriptDocuments()
for _, document in documents do
if not document:IsCommandBar() then
return document
end
end
return nil
end
local scriptDocument = getFirstOpenDocument()
if scriptDocument then
local startLine, startCharacter = scriptDocument:GetSelectionStart()
local endLine, endCharacter = scriptDocument:GetSelectionEnd()
print(`Selection start: Line {startLine}, Char {startCharacter}`)
print(`Selection end: Line {endLine}, Char {endCharacter}`)
else
print("No scripts open")
end

GetSelectionStart

Plugin Security

Returns

Code Samples

ScriptDocument:GetSelectionStart() and :GetSelectionEnd()

--!nocheck
-- Run the following code in the Command Bar while a script is open
local ScriptEditorService = game:GetService("ScriptEditorService")
local function getFirstOpenDocument()
local documents = ScriptEditorService:GetScriptDocuments()
for _, document in documents do
if not document:IsCommandBar() then
return document
end
end
return nil
end
local scriptDocument = getFirstOpenDocument()
if scriptDocument then
local startLine, startCharacter = scriptDocument:GetSelectionStart()
local endLine, endCharacter = scriptDocument:GetSelectionEnd()
print(`Selection start: Line {startLine}, Char {startCharacter}`)
print(`Selection end: Line {endLine}, Char {endCharacter}`)
else
print("No scripts open")
end

GetText

Plugin Security

Parameters

startLine: number
Default Value: "nil"
startCharacter: number
Default Value: "nil"
endLine: number
Default Value: "nil"
endCharacter: number
Default Value: "nil"

Returns

Code Samples

ScriptDocument:GetText()

--!nocheck
-- Run the following code in the Command Bar while a script is open
local ScriptEditorService = game:GetService("ScriptEditorService")
local function getFirstOpenDocument()
local documents = ScriptEditorService:GetScriptDocuments()
for _, document in documents do
if not document:IsCommandBar() then
return document
end
end
return nil
end
local scriptDocument = getFirstOpenDocument()
if scriptDocument then
local text = scriptDocument:GetText()
print(`Script contents: {text}`)
else
print("No scripts open")
end

GetViewport

Plugin Security

Returns

Code Samples

ScriptDocument:GetViewport

--!nocheck
-- Run the following code in the Command Bar while a script is open
local ScriptEditorService = game:GetService("ScriptEditorService")
local function getFirstOpenDocument()
local documents = ScriptEditorService:GetScriptDocuments()
for _, document in documents do
if not document:IsCommandBar() then
return document
end
end
return nil
end
local scriptDocument = getFirstOpenDocument()
if scriptDocument then
local firstLine, lastLine = scriptDocument:GetViewport()
print(`Currently viewing lines {firstLine} to {lastLine}`)
else
print("No scripts open")
end

HasSelectedText

Plugin Security

Returns

Code Samples

ScriptDocument:HasSelectedText() and :GetSelectedText()

--!nocheck
-- Run the following code in the Command Bar while a script is open
local ScriptEditorService = game:GetService("ScriptEditorService")
local function getFirstOpenDocument()
local documents = ScriptEditorService:GetScriptDocuments()
for _, document in documents do
if not document:IsCommandBar() then
return document
end
end
return nil
end
local scriptDocument = getFirstOpenDocument()
if scriptDocument then
scriptDocument.SelectionChanged:Connect(function()
if scriptDocument:HasSelectedText() then
local selectedText = scriptDocument:GetSelectedText()
print(`Currently selected text: {selectedText}`)
else
print("No text currently selected")
end
end)
else
print("No scripts open")
end

IsCommandBar

Plugin Security

Returns

Code Samples

ScriptDocument:IsCommandBar()

--!nocheck
-- Run the following code in the Command Bar
local ScriptEditorService = game:GetService("ScriptEditorService")
local documents = ScriptEditorService:GetScriptDocuments()
for _, document in documents do
if document:IsCommandBar() then
print("Command bar document:", document)
end
end

MultiEditTextAsync

Yields
Plugin Security

Parameters

edits: Array

Returns

RequestSetSelectionAsync

Yields
Plugin Security

Parameters

cursorLine: number
cursorCharacter: number
anchorLine: number
Default Value: "nil"
anchorCharacter: number
Default Value: "nil"

Returns

Code Samples

ScriptDocument:RequestSetSelectionAsync()

--!nocheck
-- Run the following code in the Command Bar while a script is open
local ScriptEditorService = game:GetService("ScriptEditorService")
local function getFirstOpenDocument()
local documents = ScriptEditorService:GetScriptDocuments()
for _, document in documents do
if not document:IsCommandBar() then
return document
end
end
return nil
end
local scriptDocument = getFirstOpenDocument()
if scriptDocument then
-- Get the text on the cursor's current line
local cursorLine = scriptDocument:GetSelection()
local lineText = scriptDocument:GetLine(cursorLine)
-- Force select the entire line of text
local success, err = scriptDocument:RequestSetSelectionAsync(cursorLine, 1, cursorLine, #lineText + 1)
if success then
print("Set selection!")
else
print(`Failed to set selection because: {err}`)
end
else
print("No scripts open")
end

Events

SelectionChanged

Plugin Security

Parameters

positionLine: number
positionCharacter: number
anchorLine: number
anchorCharacter: number

Code Samples

ScriptDocument.SelectionChanged and ScriptDocument:GetLine()

--!nocheck
-- Run the following code in the Command Bar while a script is open
local ScriptEditorService = game:GetService("ScriptEditorService")
local function getFirstOpenDocument()
local documents = ScriptEditorService:GetScriptDocuments()
for _, document in documents do
if not document:IsCommandBar() then
return document
end
end
return nil
end
local scriptDocument = getFirstOpenDocument()
if scriptDocument then
scriptDocument.SelectionChanged:Connect(function(positionLine, positionCharacter, anchorLine, anchorCharacter)
print(`Selected: Line {positionLine}, Char {positionCharacter}`)
print(`Anchor: Line {anchorLine}, Char {anchorCharacter}`)
local lineText = scriptDocument:GetLine(positionLine)
print(`Selected line text: {lineText}`)
end)
else
print("No scripts open")
end

ViewportChanged

Plugin Security

Parameters

startLine: number
endLine: number

Code Samples

Connecting to ScriptDocument.ViewportChanged

--!nocheck
--[[
To run:
1. Ensure Output view is open
2. Run the below code in the Command Bar
3. Scroll up and down in the opened Script window
Print statements from the ViewportChanged event will appear in the Output
]]
local Workspace = game:GetService("Workspace")
local ScriptEditorService = game:GetService("ScriptEditorService")
-- Create text that spans many lines
local dummyText = string.rep("-- Dummy Text\n", 60)
-- Create a script containing the dummy text and open it
local otherScript = Instance.new("Script")
otherScript.Source = dummyText
otherScript.Parent = Workspace
local success, err = ScriptEditorService:OpenScriptDocumentAsync(otherScript)
if not success then
warn(`Failed to open script because: {err}`)
return
end
-- Get a reference to the opened script
local scriptDocument = ScriptEditorService:FindScriptDocument(otherScript)
local function onViewportChanged(startLine: number, endLine: number)
print(`Script Viewport Changed - startLine: {startLine}, endLine: {endLine}`)
end
-- Connect the ViewportChanged event to the function above that prints the start and end line of the updated viewport
scriptDocument.ViewportChanged:Connect(onViewportChanged)