TextAreaModel class
Constructors
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TextAreaModel({String prompt = '│ ', String placeholder = '', bool showLineNumbers = true, int minimumLineNumberDigits = 0, int charLimit = 0, bool softWrap = true, int width = 0, int height = 6, bool useVirtualCursor = true, TextAreaKeyMap? keyMap, CursorModel? cursor, TextAreaStyles? styles, DateTime nowProvider()?})
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Properties
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activeCodeAction
→ EditorCodeAction?
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no setter
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activeCompletion
→ EditorCompletionItem?
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no setter
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activeDiagnostic
→ TextDiagnosticRange?
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no setter
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activeSearchMatch
→ TextSearchMatch?
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no setter
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canRedo
→ bool
-
no setter
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canUndo
→ bool
-
no setter
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charLimit
↔ int
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getter/setter pair
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codeActionError
→ Object?
-
no setter
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codeActionIndex
→ int
-
no setter
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codeActions
→ List<EditorCodeAction>
-
no setter
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column
→ int
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no setter
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commandRegistry
→ EditorCommandRegistry<TextAreaModel>
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Commands available to keymaps, palettes, and host integrations.
no setter
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completionError
→ Object?
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no setter
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completionIndex
→ int
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no setter
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completionItems
→ List<EditorCompletionItem>
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Current completion candidates.
no setter
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completionVisible
→ bool
-
no setter
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cursor
↔ CursorModel
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Cursor model.
getter/setter pair
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cursorOffset
→ int
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Cursor offset in graphemes from the document start.
no setter
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decorations
→ List<TextDecorationRange>
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no setter
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diagnostics
→ List<TextDiagnosticRange>
-
no setter
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document
→ TextDocument
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no setter
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editorState
→ EditorState
-
no setter
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focused
→ bool
-
no setter
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folds
↔ FoldState
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Fold projection applied by TextView. Hidden lines are not painted.
getter/setter pair
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hashCode
→ int
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The hash code for this object.
no setterinherited
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hasMultipleSelections
→ bool
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Whether more than one cursor or selection is active.
no setter
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hasSelection
→ bool
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no setter
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height
→ int
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no setter
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isDirty
→ bool
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no setter
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keyMap
↔ TextAreaKeyMap
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getter/setter pair
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length
→ int
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no setter
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line
→ int
-
no setter
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lineCount
→ int
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no setter
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lineDecorations
→ List<TextLineDecoration>
-
no setter
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minimumLineNumberDigits
↔ int
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Minimum width reserved for line numbers.
getter/setter pair
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placeholder
↔ String
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getter/setter pair
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prompt
↔ String
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getter/setter pair
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promptFunc
↔ PromptFunc?
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getter/setter pair
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runtimeType
→ Type
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A representation of the runtime type of the object.
no setterinherited
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searchError
→ String?
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no setter
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searchMatches
→ List<TextSearchMatch>
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no setter
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searchMatchIndex
→ int
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no setter
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searchQuery
→ TextSearchQuery?
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no setter
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searchTruncated
→ bool
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Whether the current search stopped at EditorWorkBudget.maxSearchResults.
no setter
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selectionBase
→ ({int column, int line})?
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Anchor position of the current selection, if any.
no setter
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selectionExtent
→ ({int column, int line})?
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Active extent position of the current selection, if any.
no setter
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selections
→ TextSelectionSet
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Active normalized selections. A single legacy cursor is returned when
multi-cursor mode is inactive.
no setter
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showLineNumbers
↔ bool
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getter/setter pair
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softWrap
↔ bool
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getter/setter pair
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styles
↔ TextAreaStyles
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Styles for the textarea.
getter/setter pair
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terminalCursor
→ Cursor?
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Returns a Cursor for rendering a real cursor in a TUI program.
This requires that useVirtualCursor is set to false.
no setter
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useVirtualCursor
↔ bool
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Whether to use a virtual cursor. If false, use terminalCursor to return
a real cursor for rendering.
getter/setter pair
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value
↔ String
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Returns the current value of the textarea.
getter/setter pair
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width
→ int
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no setter
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workAssessment
→ EditorWorkAssessment
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Feature recommendations for the current document.
no setter
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workBudget
↔ EditorWorkBudget
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Limits for search, decorations, completions, and syntax work.
getter/setter pair
Methods
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acceptCodeAction()
→ bool
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Accepts an action for the host to dispatch/apply exactly once.
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acceptCompletion()
→ bool
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Accepts the active completion as one normal undo transaction.
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activeStyle()
→ TextAreaStyleState
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Returns the appropriate style state based on focus.
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addCursorAtOffset(int offset)
→ void
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Adds a collapsed cursor at
offset and makes it primary.
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addCursorVertically({required bool below})
→ bool
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Adds a cursor on the adjacent document line at the primary visual column.
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addNextOccurrence()
→ bool
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Adds the next occurrence of the primary selected text.
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applyTextCommandResult(TextCommandResult result, {bool pushHistoryBoundary = false})
→ void
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Applies an offset-based command result to the live document state.
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applyTextCursorCommandResult(TextCursorCommandResult result, {bool pushHistoryBoundary = false})
→ void
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Applies an offset cursor command result to the live document state.
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applyTextLineCommandResult(TextLineCommandResult result, {bool pushHistoryBoundary = false})
→ void
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Applies a line-based command result to the live document state.
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blur()
→ void
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Blurs the textarea.
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cancelCodeActions()
→ void
-
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cancelCompletions()
→ void
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Hides candidates and invalidates any in-flight provider response.
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capitalizeSelectionOrLine()
→ bool
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Capitalizes words in the selected range, or the current line when there
is no selection.
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capitalizeWordForward()
→ bool
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Capitalizes the word at or after the cursor.
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cleanupWhitespace({bool trimTrailingBlankLines = true})
→ bool
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Cleans up trailing horizontal whitespace in the selected block, or the
entire buffer when there is no selection.
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clearDecorationLayer(String layerKey)
→ bool
-
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clearDecorations()
→ bool
-
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clearDiagnostics()
→ bool
-
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clearHighlights()
→ bool
-
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clearHistory()
→ void
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Clears all undo and redo history.
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clearLineDecorationLayer(String layerKey)
→ bool
-
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clearLineDecorations()
→ bool
-
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clearSelection()
→ void
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Clears the current selection.
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clearSyntax()
→ bool
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Removes syntax decorations while preserving every other layer.
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closeSearch()
→ void
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Closes the search session and removes only its highlight layer.
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collapseAllFolds()
→ bool
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Collapses every fold range.
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consumeAcceptedCodeAction()
→ EditorCodeAction?
-
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consumeCompletionAdditionalEdits()
→ WorkspaceEdit?
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Additional edits from the last accepted completion, consumed once.
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consumeLastDocumentChange()
→ TextDocumentChange?
-
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cursorColumn()
→ int
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Returns the current cursor column (0-indexed).
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cursorEnd()
→ void
-
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cursorLine()
→ int
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Returns the current cursor line (0-indexed).
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cursorStart()
→ void
-
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cutSelectedText()
→ String
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Returns selected text and removes every selection atomically.
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decorationsForLayer(String layerKey)
→ List<TextDecorationRange>
-
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deleteAtSelections({required bool forward})
→ bool
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Deletes one grapheme beside every cursor, or each selected range.
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deleteLines()
→ bool
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Deletes the selected lines, or the current line if there is no selection.
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deleteLinesAtSelections()
→ bool
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Deletes every line touched by an active cursor or selection.
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deleteSelections()
→ bool
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Deletes all active selections as one undoable edit.
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deleteToLineBoundaryAtSelections({required bool forward})
→ bool
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Deletes from every cursor to its logical line boundary atomically.
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deleteWordAtSelections({required bool forward})
→ bool
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Deletes to a word boundary beside every cursor as one undoable edit.
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duplicateLinesAbove()
→ bool
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Duplicates the selected lines, or the current line, above the current
block and moves the selection/cursor to the duplicate.
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duplicateLinesAtSelections()
→ bool
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Duplicates every touched line below the original.
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duplicateLinesBelow()
→ bool
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Duplicates the selected lines, or the current line, below the current
block and moves the selection/cursor to the duplicate.
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editTransaction<T>(T body(TextAreaModel model))
→ T
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Runs every edit invoked by
body as one undoable transaction.
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executeCommand(String commandId, {Object? argument})
→ EditorCommandDispatchResult
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Dispatches a stable editor command against this model.
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expandAllFolds()
→ bool
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Expands every fold range.
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extendSelectionsByPage({required bool below})
→ bool
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Extends every selection's active edge by one viewport page.
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extendSelectionsByWord({required bool forward})
→ bool
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Extends every selection's end by one word.
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extendSelectionsHorizontally({required bool forward})
→ bool
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Extends every selection's end by one grapheme.
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extendSelectionsToDocumentBoundary({required bool forward})
→ bool
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Extends every selection's active edge to a document boundary.
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extendSelectionsToLineBoundary({required bool forward})
→ bool
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Extends every selection's end to its line boundary.
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extendSelectionsToVisualLineBoundary({required bool forward})
→ bool
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Extends every selection's active edge to its visual-row boundary.
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extendSelectionsVertically({required bool below})
→ bool
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Extends every selection's end up or down by one visible line.
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focus()
→ Cmd?
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Focuses the textarea.
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getSelectedText()
→ String
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Returns the currently selected text.
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getSelectedTexts()
→ List<String>
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Selected text for each non-collapsed range in document order.
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indentAtSelections({int width = 2})
→ bool
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Indents every line touched by an active cursor or selection.
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indentLines({int width = 2})
→ bool
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Indents the selected lines, or the current line if there is no selection.
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init()
→ Cmd?
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Returns an optional command to execute on program startup.
override
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insertString(String s)
→ void
-
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isFocused()
→ bool
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Returns whether the textarea is focused.
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joinLines()
→ bool
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Joins the current line with the next line, or joins the selected block
into a single line.
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lineAt(int i)
→ String
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Returns the text of the line at the given index.
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lineDecorationsForLayer(String layerKey)
→ List<TextLineDecoration>
-
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lowercaseSelectionOrLine()
→ bool
-
Lowercases the selected range, or the current line when there is no
selection.
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lowercaseWordForward()
→ bool
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Lowercases the word at or after the cursor.
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markSaved()
→ void
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Marks the current value as the persisted baseline.
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moveCodeActionSelection(int delta)
→ bool
-
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moveCompletionSelection(int delta)
→ bool
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Moves the active completion by
delta, wrapping at either end.
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moveLinesAtSelections({required bool down})
→ bool
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Moves every touched line up or down by one row, keeping contiguous runs
together.
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moveLinesDown()
→ bool
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Moves the selected lines, or the current line, one row downward.
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moveLinesUp()
→ bool
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Moves the selected lines, or the current line, one row upward.
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moveSelectionsByPage({required bool below})
→ bool
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Moves every active cursor by one viewport page.
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moveSelectionsByWord({required bool forward})
→ bool
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Moves every active cursor to the next or previous word boundary.
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moveSelectionsHorizontally({required bool forward})
→ bool
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Moves every active cursor left or right by one grapheme.
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moveSelectionsToLineBoundary({required bool forward})
→ bool
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Moves every active cursor to the start or end of its logical line.
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moveSelectionsToVisualLineBoundary({required bool forward})
→ bool
-
Moves every active cursor to its projected visual-row boundary.
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moveSelectionsVertically({required bool below})
→ bool
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Moves every active cursor up or down by one visible line.
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moveToDocumentEnd()
→ bool
-
Moves the primary cursor to the end of the document.
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moveToDocumentStart()
→ bool
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Moves the primary cursor to the start of the document.
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noSuchMethod(Invocation invocation)
→ dynamic
-
Invoked when a nonexistent method or property is accessed.
inherited
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outdentAtSelections({int width = 2})
→ bool
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Outdents every line touched by an active cursor or selection.
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outdentLines({int width = 2})
→ bool
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Outdents the selected lines, or the current line if there is no selection.
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pushHistoryBoundary()
→ void
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Breaks the current undo coalescing chain.
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redo()
→ bool
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Reapplies the most recently undone edit state.
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refreshIndentFolds({int tabWidth = 4})
→ void
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Recomputes indent folds and keeps collapse state that still applies.
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renumberNumberedList({int startAt = 1})
→ bool
-
Renumbers existing numbered list items in the current line or selected
block.
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replaceActiveSearchMatch(String replacementTemplate)
→ bool
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Replaces the active match and refreshes the current search.
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replaceAllSearchMatches(String replacementTemplate)
→ bool
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Replaces all current matches as one undoable edit.
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requestCodeActions(EditorCodeActionProvider provider)
→ Cmd
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Requests quick fixes/refactors for the current selection or cursor.
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requestCompletions(EditorCompletionProvider provider, {String? trigger})
→ Cmd
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Starts an asynchronous completion request for the current document.
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reset()
→ void
-
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selectAll()
→ void
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Selects the entire textarea contents.
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selectCurrentLine()
→ void
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Selects the current line, or expands the current selection to full lines.
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selectDiagnosticAtLine(int lineIndex)
→ bool
-
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selectNextDiagnostic({bool wrap = true})
→ bool
-
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selectPreviousDiagnostic({bool wrap = true})
→ bool
-
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selectSearchMatch({required bool forward, bool wrap = true})
→ bool
-
Selects the next or previous search match.
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setCharLimit(int n)
→ void
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Sets the character limit.
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setCursor(int row, int col)
→ void
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Sets the cursor position.
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setDecorationLayer(String layerKey, Iterable<TextDecorationRange> decorations, {int priority = textDefaultDecorationLayerPriority})
→ bool
-
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setDecorations(Iterable<TextDecorationRange> decorations)
→ bool
-
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setDiagnostics(Iterable<TextDiagnosticRange> diagnostics)
→ bool
-
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setDiagnosticsFromPositions(Iterable<TextPositionDiagnosticRange> diagnostics)
→ bool
-
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setHeight(int h)
→ void
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Sets the height of the textarea.
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setHighlights(Iterable<TextHighlightRange> highlights, {int activeIndex = -1})
→ bool
-
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setLineDecorationLayer(String layerKey, Iterable<TextLineDecoration> decorations, {int priority = textDefaultLineDecorationLayerPriority})
→ bool
-
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setLineDecorations(Iterable<TextLineDecoration> decorations)
→ bool
-
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setPlaceholder(String s)
→ void
-
Sets the placeholder text.
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setPromptFunc(int promptWidth, PromptFunc fn)
→ void
-
Sets the prompt function.
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setSelection({required int baseLine, required int baseColumn, required int extentLine, required int extentColumn})
→ void
-
Sets the current selection and places the cursor at the extent.
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setSelections(TextSelectionSet value)
→ void
-
Activates normalized multi-cursor selections in document coordinates.
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setText(String v, {bool recordHistory = true})
→ void
-
Replaces the text and collapses the cursor at the end.
-
setValue(String v)
→ void
-
Sets the value of the textarea (method form for API compatibility).
-
setWidth(int w)
→ void
-
Sets the width of the textarea.
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sortSelectedLines({bool descending = false, bool caseSensitive = false})
→ bool
-
Sorts the selected lines, or the entire buffer when there is no
selection.
-
splitLine()
→ bool
-
Splits the current line at the cursor, or replaces the selected range
with a newline and places the cursor at the start of the new line.
-
startSearch(TextSearchQuery query)
→ TextSearchResult
-
Starts or incrementally refreshes a grapheme-aware search session.
-
syncSyntax<State>(TextSyntaxSession<State> session, {String? language, bool force = false})
→ TextSyntaxSnapshot<State>
-
Incrementally synchronizes
session and updates the dedicated syntax
decoration layer without disturbing search or diagnostics.
-
syncSyntaxAsync<State>(AsyncTextSyntaxSession<State> session, {String? language, bool force = false})
→ Future<TextSyntaxSnapshot<State>?>
-
Asynchronously synchronizes syntax without publishing stale results.
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toggleChecklistState({String checkedMarker = 'x'})
→ bool
-
Toggles checklist completion state on the current line or selected block.
-
toggleFoldAtCursor()
→ bool
-
Toggles the fold at the primary cursor, moving onto the header if hidden.
-
toggleHeadingPrefix({int level = 1})
→ bool
-
Toggles Markdown heading prefixes on the current line or selected block.
-
toggleLinePrefix(String prefix, {bool addSpaceWhenNonEmpty = true, bool skipBlankLinesWhenChecking = true})
→ bool
-
Toggles
prefix on the current line or selected block.
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toggleNumberedList({int startAt = 1})
→ bool
-
Toggles numbered list prefixes on the current line or selected block.
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toString()
→ String
-
A string representation of this object.
inherited
-
transposeCharactersBackward()
→ bool
-
Transposes the grapheme before the cursor with its predecessor.
-
undo()
→ bool
-
Restores the most recent previous edit state.
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unwrapSelection()
→ bool
-
Removes a matching surrounding delimiter pair around the current
selection and preserves the inner selection.
-
update(Msg msg)
→ (TextAreaModel, Cmd?)
-
Updates the component state in response to a message.
override
-
uppercaseSelectionOrLine()
→ bool
-
Uppercases the selected range, or the current line when there is no
selection.
-
uppercaseWordForward()
→ bool
-
Uppercases the word at or after the cursor.
-
view()
→ Object
-
Renders the current model state for display.
override
-
wrapSelection(String before, {String? after})
→ bool
-
Wraps the current selection with
before and after.