Struct TextInputState 

pub struct TextInputState {
    pub value: String,
    pub cursor: usize,
    pub label: String,
    pub placeholder: String,
    pub focus: FocusState,
    pub validate_json: bool,
}

State for a text input control

Fields

value: String

Current text value

cursor: usize

Cursor position (character index)

label: String

Label displayed before the input

placeholder: String

Placeholder text when empty

focus: FocusState

Focus state

validate_json: bool

If true, validate that value is valid JSON before allowing exit

Implementations

impl TextInputState

pub fn handle_mouse( &mut self, event: MouseEvent, layout: &TextInputLayout, ) -> Option<TextInputEvent>

Handle a mouse event for this text input

Arguments

• event - The mouse event to handle
• layout - The control’s rendered layout for hit testing

Returns

• Some(TextInputEvent) if the event was consumed
• None if the event was not relevant

pub fn handle_key(&mut self, key: KeyEvent) -> Option<TextInputEvent>

Handle a keyboard event for this text input

Returns

• Some(TextInputEvent) if the event was consumed
• None if the event was not relevant

impl TextInputState

pub fn new(label: impl Into<String>) -> Self

Create a new text input state

pub fn with_json_validation(self) -> Self

Set JSON validation mode

pub fn is_valid(&self) -> bool

Check if the current value is valid (valid JSON if validate_json is set)

pub fn with_value(self, value: impl Into<String>) -> Self

Set the initial value

pub fn with_placeholder(self, placeholder: impl Into<String>) -> Self

Set the placeholder text

pub fn with_focus(self, focus: FocusState) -> Self

Set the focus state

pub fn is_enabled(&self) -> bool

Check if the control is enabled

pub fn insert(&mut self, c: char)

Insert a character at the cursor position

pub fn insert_str(&mut self, s: &str)

Insert a string at the cursor position

pub fn backspace(&mut self)

Delete the character before the cursor (backspace)

pub fn delete(&mut self)

Delete the grapheme cluster at the cursor (delete key)

Deletes the entire grapheme cluster, handling combining characters properly.

pub fn move_left(&mut self)

Move cursor left (to previous grapheme cluster boundary)

Uses grapheme cluster boundaries for proper handling of combining characters like Thai diacritics, emoji with modifiers, etc.

pub fn move_right(&mut self)

Move cursor right (to next grapheme cluster boundary)

Uses grapheme cluster boundaries for proper handling of combining characters like Thai diacritics, emoji with modifiers, etc.

pub fn move_home(&mut self)

Move cursor to start

pub fn move_end(&mut self)

Move cursor to end

pub fn clear(&mut self)

Clear the input

pub fn set_value(&mut self, value: impl Into<String>)

Set the value directly

Trait Implementations

impl Clone for TextInputState

fn clone(&self) -> TextInputState

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for TextInputState

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.