⚠️ VeridianOS Kernel Documentation - This is low-level kernel code. All functions are unsafe unless explicitly marked otherwise. no_std

TextInput

Struct TextInput 

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pub struct TextInput {
    pub buffer: String,
    pub cursor: usize,
    pub selection_start: Option<usize>,
    pub selection_end: Option<usize>,
}
Expand description

Text input buffer with cursor and selection

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§buffer: String

Text buffer

§cursor: usize

Cursor position (byte offset)

§selection_start: Option<usize>

Selection start (byte offset, None if no selection)

§selection_end: Option<usize>

Selection end (byte offset)

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impl TextInput

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pub fn new() -> Self

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pub fn from_text(text: &str) -> Self

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pub fn insert_char(&mut self, ch: char)

Insert a character at the cursor position

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

Insert a string at the cursor position

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pub fn backspace(&mut self) -> bool

Delete character before cursor (backspace)

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pub fn delete(&mut self) -> bool

Delete character at cursor (delete key)

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pub fn move_left(&mut self)

Move cursor left

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pub fn move_right(&mut self)

Move cursor right

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pub fn move_home(&mut self)

Move cursor to beginning

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pub fn move_end(&mut self)

Move cursor to end

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pub fn select_all(&mut self)

Select all text

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

Get selected text

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pub fn delete_selection(&mut self) -> bool

Delete selected text

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pub fn clear_selection(&mut self)

Clear selection

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pub fn handle_key( &mut self, key_code: u32, char_code: u32, modifiers: u8, ) -> bool

Handle a key event. Returns true if text changed.

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pub fn render_parts(&self) -> (&str, &str)

Get the display string with cursor marker for rendering. Returns (text_before_cursor, text_after_cursor).

Trait Implementations§

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impl Clone for TextInput

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fn clone(&self) -> TextInput

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for TextInput

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

Formats the value using the given formatter. Read more
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impl Default for TextInput

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fn default() -> TextInput

Returns the “default value” for a type. Read more

Auto Trait Implementations§

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impl Freeze for TextInput

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impl RefUnwindSafe for TextInput

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impl Send for TextInput

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impl Sync for TextInput

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impl Unpin for TextInput

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impl UnwindSafe for TextInput

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of [From]<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.