#[non_exhaustive]
pub enum Event { Enter { surface: WlSurface, }, Leave { surface: WlSurface, }, PreeditString { text: Option<String>, cursor_begin: i32, cursor_end: i32, }, CommitString { text: Option<String>, }, DeleteSurroundingText { before_length: u32, after_length: u32, }, Done { serial: u32, }, }

Variants (Non-exhaustive)§

This enum is marked as non-exhaustive
Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.
§

Enter

enter event

Notification that this seat’s text-input focus is on a certain surface.

If client has created multiple text input objects, compositor must send this event to all of them.

When the seat has the keyboard capability the text-input focus follows the keyboard focus. This event sets the current surface for the text-input object.

Fields

§surface: WlSurface
§

Leave

leave event

Notification that this seat’s text-input focus is no longer on a certain surface. The client should reset any preedit string previously set.

The leave notification clears the current surface. It is sent before the enter notification for the new focus. After leave event, compositor must ignore requests from any text input instances until next enter event.

When the seat has the keyboard capability the text-input focus follows the keyboard focus.

Fields

§surface: WlSurface
§

PreeditString

pre-edit

Notify when a new composing text (pre-edit) should be set at the current cursor position. Any previously set composing text must be removed. Any previously existing selected text must be removed.

The argument text contains the pre-edit string buffer.

The parameters cursor_begin and cursor_end are counted in bytes relative to the beginning of the submitted text buffer. Cursor should be hidden when both are equal to -1.

They could be represented by the client as a line if both values are the same, or as a text highlight otherwise.

Values set with this event are double-buffered. They must be applied and reset to initial on the next zwp_text_input_v3.done event.

The initial value of text is an empty string, and cursor_begin, cursor_end and cursor_hidden are all 0.

Fields

§cursor_begin: i32
§cursor_end: i32
§

CommitString

text commit

Notify when text should be inserted into the editor widget. The text to commit could be either just a single character after a key press or the result of some composing (pre-edit).

Values set with this event are double-buffered. They must be applied and reset to initial on the next zwp_text_input_v3.done event.

The initial value of text is an empty string.

Fields

§

DeleteSurroundingText

delete surrounding text

Notify when the text around the current cursor position should be deleted.

Before_length and after_length are the number of bytes before and after the current cursor index (excluding the selection) to delete.

If a preedit text is present, in effect before_length is counted from the beginning of it, and after_length from its end (see done event sequence).

Values set with this event are double-buffered. They must be applied and reset to initial on the next zwp_text_input_v3.done event.

The initial values of both before_length and after_length are 0.

Fields

§before_length: u32

length of text before current cursor position

§after_length: u32

length of text after current cursor position

§

Done

apply changes

Instruct the application to apply changes to state requested by the preedit_string, commit_string and delete_surrounding_text events. The state relating to these events is double-buffered, and each one modifies the pending state. This event replaces the current state with the pending state.

The application must proceed by evaluating the changes in the following order:

  1. Replace existing preedit string with the cursor.
  2. Delete requested surrounding text.
  3. Insert commit string with the cursor at its end.
  4. Calculate surrounding text to send.
  5. Insert new preedit text in cursor position.
  6. Place cursor inside preedit text.

The serial number reflects the last state of the zwp_text_input_v3 object known to the compositor. The value of the serial argument must be equal to the number of commit requests already issued on that object.

When the client receives a done event with a serial different than the number of past commit requests, it must proceed with evaluating and applying the changes as normal, except it should not change the current state of the zwp_text_input_v3 object. All pending state requests (set_surrounding_text, set_content_type and set_cursor_rectangle) on the zwp_text_input_v3 object should be sent and committed after receiving a zwp_text_input_v3.done event with a matching serial.

Fields

§serial: u32

Implementations§

source§

impl Event

source

pub fn opcode(&self) -> u16

Get the opcode number of this message

Trait Implementations§

source§

impl Debug for Event

source§

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

§

impl Freeze for Event

§

impl !RefUnwindSafe for Event

§

impl Send for Event

§

impl Sync for Event

§

impl Unpin for Event

§

impl !UnwindSafe for Event

Blanket Implementations§

source§

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

source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
source§

impl<T> Borrow<T> for T
where T: ?Sized,

source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

source§

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

Mutably borrows from an owned value. Read more
source§

impl<T> Downcast for T
where T: Any,

source§

fn into_any(self: Box<T>) -> Box<dyn Any>

Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait.
source§

fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>

Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait.
source§

fn as_any(&self) -> &(dyn Any + 'static)

Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s.
source§

fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s.
source§

impl<T> DowncastSync for T
where T: Any + Send + Sync,

source§

fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Sync + Send>

Convert Arc<Trait> (where Trait: Downcast) to Arc<Any>. Arc<Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait.
source§

impl<T> From<T> for T

source§

fn from(t: T) -> T

Returns the argument unchanged.

source§

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

source§

fn into(self) -> U

Calls U::from(self).

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

source§

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

§

type Error = Infallible

The type returned in the event of a conversion error.
source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

§

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

The type returned in the event of a conversion error.
source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.