Safe Haskell	None
Language	GHC2024

NanoUI.Widgets.TextArea

Contents

Pure state
Widget

Description

The multi-line text area widget and its state: the document buffer, caret and selection, viewport, and commands run against it.

Synopsis

data TextAreaState = TextAreaState {
- buffer :: !TextBuffer
- selectionAnchor :: !Cursor
- scrollOffset :: !(Double, Double)
- viewportSize :: !(Double, Double)
- lineHeight :: !Double
- history :: !EditHistory
}
initTextAreaState :: Text -> TextAreaState
setTextAreaViewport :: (Double, Double) -> Double -> TextAreaState -> TextAreaState
setTextAreaSelection :: Cursor -> Cursor -> TextAreaState -> TextAreaState
textArea :: forall (es :: [Effect]). Ui :> es => Text -> Eff es Text
textArea' :: forall (es :: [Effect]). Ui :> es => Text -> Eff es (Response, Text)
textAreaWith :: forall (es :: [Effect]). Ui :> es => (Layout -> Layout) -> Text -> Eff es Text
textAreaWith' :: forall (es :: [Effect]). Ui :> es => (Layout -> Layout) -> Text -> Eff es (Response, Text)
textAreaLayout :: Layout
loadTextAreaState :: WidgetStore -> Int -> Text -> TextAreaState
loadTextAreaStateWithBuffer :: WidgetStore -> Int -> TextBuffer -> TextAreaState
saveTextAreaState :: Int -> Text -> TextAreaState -> WidgetStore -> WidgetStore
textAreaEditor :: TextAreaState -> Editor
runTextAreaCommand :: TextCommand -> TextAreaState -> TextAreaState
applyTextAreaCommand :: Context -> WidgetId -> TextCommand -> IO ()

Pure state

data TextAreaState Source #

Constructors

TextAreaState
Fields buffer :: !TextBuffer selectionAnchor :: !Cursor scrollOffset :: !(Double, Double) viewportSize :: !(Double, Double) lineHeight :: !Double history :: !EditHistory

Instances

Instances details

Show TextAreaState Source #
Instance details Defined in NanoUI.Widgets.TextArea Methods showsPrec :: Int -> TextAreaState -> ShowS # show :: TextAreaState -> String # showList :: [TextAreaState] -> ShowS #

initTextAreaState :: Text -> TextAreaState Source #

setTextAreaViewport :: (Double, Double) -> Double -> TextAreaState -> TextAreaState Source #

setTextAreaSelection :: Cursor -> Cursor -> TextAreaState -> TextAreaState Source #

Widget

textArea :: forall (es :: [Effect]). Ui :> es => Text -> Eff es Text Source #

Multi-line text editor. Pass the current text; the result is the text after this frame's edits. Pair it with a label when a caption is wanted.

textArea' :: forall (es :: [Effect]). Ui :> es => Text -> Eff es (Response, Text) Source #

textAreaWith :: forall (es :: [Effect]). Ui :> es => (Layout -> Layout) -> Text -> Eff es Text Source #

textArea with a modifier applied to textAreaLayout, for example grow to fill the parent.

textAreaWith' :: forall (es :: [Effect]). Ui :> es => (Layout -> Layout) -> Text -> Eff es (Response, Text) Source #

textAreaLayout :: Layout Source #

loadTextAreaState :: WidgetStore -> Int -> Text -> TextAreaState Source #

loadTextAreaStateWithBuffer :: WidgetStore -> Int -> TextBuffer -> TextAreaState Source #

loadTextAreaState with the buffer already resolved (the paint path ensures the buffer cache and hands it straight through, avoiding a second store lookup).

saveTextAreaState :: Int -> Text -> TextAreaState -> WidgetStore -> WidgetStore Source #

Store the editor state with its text. Callers pass the text because they usually have it already, and toText joins the whole document.

textAreaEditor :: TextAreaState -> Editor Source #

runTextAreaCommand :: TextCommand -> TextAreaState -> TextAreaState Source #

Run a command that needs no clipboard, keeping the caret in view.

applyTextAreaCommand :: Context -> WidgetId -> TextCommand -> IO () Source #

Run a command on a text area outside its frame (a context menu row, an app's Edit menu). A change to the text pulses respChanged on the area's next frame.