Struct wayland_protocols_plasma::text_input::v1::client::wl_text_input::WlTextInput

pub struct WlTextInput {
    id: ObjectId,
    version: u32,
    data: Option<Arc<dyn ObjectData>>,
    backend: WeakBackend,
}

text input

An object used for text input. Adds support for text input and input methods to applications. A text-input object is created from a wl_text_input_manager and corresponds typically to a text entry in an application. Requests are used to activate/deactivate the text-input object and set state information like surrounding and selected text or the content type. The information about entered text is sent to the text-input object via the pre-edit and commit events. Using this interface removes the need for applications to directly process hardware key events and compose text out of them.

Text is generally UTF-8 encoded, indices and lengths are in bytes.

Serials are used to synchronize the state between the text input and an input method. New serials are sent by the text input in the commit_state request and are used by the input method to indicate the known text input state in events like preedit_string, commit_string, and keysym. The text input can then ignore events from the input method which are based on an outdated state (for example after a reset).

See also the Event enum for this interface.

Fields

id: ObjectId

version: u32

data: Option<Arc<dyn ObjectData>>

backend: WeakBackend

Implementations

impl WlTextInput

pub fn activate(&self, seat: &WlSeat, surface: &WlSurface)

request activation

Requests the text-input object to be activated (typically when the text entry gets focus). The seat argument is a wl_seat which maintains the focus for this activation. The surface argument is a wl_surface assigned to the text-input object and tracked for focus lost. The enter event is emitted on successful activation.

pub fn deactivate(&self, seat: &WlSeat)

request deactivation

Requests the text-input object to be deactivated (typically when the text entry lost focus). The seat argument is a wl_seat which was used for activation.

pub fn show_input_panel(&self)

show input panels

Requests input panels (virtual keyboard) to show.

pub fn hide_input_panel(&self)

hide input panels

Requests input panels (virtual keyboard) to hide.

pub fn reset(&self)

reset

Should be called by an editor widget when the input state should be reset, for example after the text was changed outside of the normal input method flow.

pub fn set_surrounding_text(&self, text: String, cursor: u32, anchor: u32)

sets the surrounding text

Sets the plain surrounding text around the input position. Text is UTF-8 encoded. Cursor is the byte offset within the surrounding text. Anchor is the byte offset of the selection anchor within the surrounding text. If there is no selected text anchor is the same as cursor.

pub fn set_content_type(&self, hint: u32, purpose: u32)

set content purpose and hint

Sets the content purpose and content hint. While the purpose is the basic purpose of an input field, the hint flags allow to modify some of the behavior.

When no content type is explicitly set, a normal content purpose with default hints (auto completion, auto correction, auto capitalization) should be assumed.

pub fn set_cursor_rectangle(&self, x: i32, y: i32, width: i32, height: i32)

pub fn set_preferred_language(&self, language: String)

sets preferred language

Sets a specific language. This allows for example a virtual keyboard to show a language specific layout. The “language” argument is a RFC-3066 format language tag.

It could be used for example in a word processor to indicate language of currently edited document or in an instant message application which tracks languages of contacts.

pub fn commit_state(&self, serial: u32)

pub fn invoke_action(&self, button: u32, index: u32)

Trait Implementations

impl Borrow<ObjectId> for WlTextInput

fn borrow(&self) -> &ObjectId

Immutably borrows from an owned value.

impl Clone for WlTextInput

fn clone(&self) -> WlTextInput

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for WlTextInput

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

Formats the value using the given formatter.

impl Hash for WlTextInput

fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq<Weak<WlTextInput>> for WlTextInput

fn eq(&self, other: &Weak<WlTextInput>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq for WlTextInput

fn eq(&self, other: &WlTextInput) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Proxy for WlTextInput

type Request<'request> = Request<'request>

The request enum for this interface

type Event = Event

The event enum for this interface

fn interface() -> &'static Interface

The interface description

fn id(&self) -> ObjectId

The ID of this object

fn version(&self) -> u32

The version of this object

fn data<U: Send + Sync + 'static>(&self) -> Option<&U>

Access the user-data associated with this object

fn object_data(&self) -> Option<&Arc<dyn ObjectData>>

Access the raw data associated with this object.

fn backend(&self) -> &WeakBackend

Access the backend associated with this object

fn send_request(&self, req: Self::Request<'_>) -> Result<(), InvalidId>

Send a request for this object.

fn send_constructor<I: Proxy>( &self, req: Self::Request<'_>, data: Arc<dyn ObjectData>, ) -> Result<I, InvalidId>

Send a request for this object that creates another object.

fn from_id(conn: &Connection, id: ObjectId) -> Result<Self, InvalidId>

Create an object proxy from its ID

fn inert(backend: WeakBackend) -> Self

Create an inert object proxy

fn parse_event( conn: &Connection, msg: Message<ObjectId, OwnedFd>, ) -> Result<(Self, Self::Event), DispatchError>

Parse a event for this object

fn write_request<'a>( &self, conn: &Connection, msg: Self::Request<'a>, ) -> Result<(Message<ObjectId, BorrowedFd<'a>>, Option<(&'static Interface, u32)>), InvalidId>

Serialize a request for this object

fn is_alive(&self) -> bool

Checks if the Wayland object associated with this proxy is still alive

fn downgrade(&self) -> Weak<Self>

Creates a weak handle to this object

impl Eq for WlTextInput