Struct JsonEditState 

pub struct JsonEditState {
    pub editor: TextEdit,
    pub original_text: String,
    pub label: String,
    pub focus: FocusState,
    pub scroll_offset: usize,
    pub max_visible_lines: usize,
}

State for multiline JSON editing

Fields

editor: TextEdit

The text editor state

original_text: String

Original text (for revert on Escape)

label: String

Label for the control

focus: FocusState

Focus state

scroll_offset: usize

Scroll offset for viewing (used by entry dialog)

max_visible_lines: usize

Maximum visible lines (for main settings panel)

Implementations

impl JsonEditState

pub fn new(label: impl Into<String>, value: Option<&Value>) -> Self

Create a new JSON edit state with pretty-printed JSON

pub fn is_unset(&self) -> bool

True if the editor is showing the JSON null sentinel — i.e. the value is “not set”. Used by the renderer to swap the literal null for a helpful placeholder line, and by start_editing to wipe the buffer so the user can type fresh JSON without manually deleting the placeholder first.

pub fn clear_placeholder_for_edit(&mut self)

Clear the null placeholder so subsequent keystrokes type into an empty editor. Called at the start of an edit session — paired with restore_unset_if_empty on stop so abandoning the edit brings the placeholder back.

pub fn restore_unset_if_empty(&mut self)

If the user left the editor empty, restore the null sentinel so the saved value round-trips as JSON null rather than as the empty string (which doesn’t parse).

pub fn revert(&mut self)

Revert to original value (for Escape key)

pub fn commit(&mut self)

Commit current value as the new original (after saving)

pub fn value(&self) -> String

Get the full text value

pub fn is_valid(&self) -> bool

Check if the JSON is valid. An empty editor counts as valid: it’s the “the user just opened a not-yet-set field” state, which restore_unset_if_empty will round-trip back to JSON null on close. Treating empty as invalid otherwise flashes a spurious “Invalid JSON” footer the moment the user presses Enter on a null field.

pub fn display_height(&self) -> usize

Get number of lines to display (all lines)

pub fn display_height_capped(&self) -> usize

Get number of lines for constrained view (e.g., main settings panel)

pub fn lines(&self) -> &[String]

Get lines for rendering

pub fn cursor_pos(&self) -> (usize, usize)

Get cursor position (row, col)

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

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

pub fn backspace(&mut self)

pub fn delete(&mut self)

pub fn move_left(&mut self)

pub fn move_right(&mut self)

pub fn move_up(&mut self)

pub fn move_down(&mut self)

pub fn move_home(&mut self)

pub fn move_end(&mut self)

pub fn move_word_left(&mut self)

pub fn move_word_right(&mut self)

pub fn has_selection(&self) -> bool

pub fn selection_range(&self) -> Option<((usize, usize), (usize, usize))>

pub fn selected_text(&self) -> Option<String>

pub fn delete_selection(&mut self) -> Option<String>

pub fn clear_selection(&mut self)

pub fn move_left_selecting(&mut self)

pub fn move_right_selecting(&mut self)

pub fn move_up_selecting(&mut self)

pub fn move_down_selecting(&mut self)

pub fn move_home_selecting(&mut self)

pub fn move_end_selecting(&mut self)

pub fn move_word_left_selecting(&mut self)

pub fn move_word_right_selecting(&mut self)

pub fn select_all(&mut self)

pub fn delete_word_forward(&mut self)

pub fn delete_word_backward(&mut self)

pub fn delete_to_end(&mut self)

Trait Implementations

impl Clone for JsonEditState

fn clone(&self) -> JsonEditState

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for JsonEditState

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

Formats the value using the given formatter.