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|
use crate::{
input::{keyboard, mouse, ButtonState},
Element, Event, Hasher, Layout, Length, Node, Point, Rectangle, Style,
Widget,
};
pub use iced_core::{text_input::State, TextInput};
impl<'a, Message, Renderer> Widget<Message, Renderer> for TextInput<'a, Message>
where
Renderer: self::Renderer,
Message: Clone + std::fmt::Debug,
{
fn node(&self, renderer: &Renderer) -> Node {
let text_bounds =
Node::new(Style::default().width(Length::Fill).height(
Length::Units(self.size.unwrap_or(renderer.default_size())),
));
Node::with_children(
Style::default()
.width(self.width)
.max_width(self.width)
.padding(self.padding),
vec![text_bounds],
)
}
fn on_event(
&mut self,
event: Event,
layout: Layout<'_>,
cursor_position: Point,
messages: &mut Vec<Message>,
_renderer: &Renderer,
) {
match event {
Event::Mouse(mouse::Event::Input {
button: mouse::Button::Left,
state: ButtonState::Pressed,
}) => {
self.state.is_focused =
layout.bounds().contains(cursor_position);
}
Event::Keyboard(keyboard::Event::CharacterReceived(c))
if self.state.is_focused && !c.is_control() =>
{
self.value.push(c);
let message = (self.on_change)(self.value.clone());
messages.push(message);
}
Event::Keyboard(keyboard::Event::Input {
key_code: keyboard::KeyCode::Backspace,
state: ButtonState::Pressed,
}) => {
let _ = self.value.pop();
let message = (self.on_change)(self.value.clone());
messages.push(message);
}
Event::Keyboard(keyboard::Event::Input {
key_code: keyboard::KeyCode::Enter,
state: ButtonState::Pressed,
}) => {
if let Some(on_submit) = self.on_submit.clone() {
messages.push(on_submit);
}
}
_ => {}
}
}
fn draw(
&self,
renderer: &mut Renderer,
layout: Layout<'_>,
cursor_position: Point,
) -> Renderer::Output {
let bounds = layout.bounds();
let text_bounds = layout.children().next().unwrap().bounds();
renderer.draw(&self, bounds, text_bounds, cursor_position)
}
fn hash_layout(&self, state: &mut Hasher) {
use std::any::TypeId;
use std::hash::Hash;
TypeId::of::<TextInput<'static, ()>>().hash(state);
self.width.hash(state);
self.max_width.hash(state);
self.padding.hash(state);
self.size.hash(state);
}
}
pub trait Renderer: crate::Renderer + Sized {
fn default_size(&self) -> u16;
fn draw<Message>(
&mut self,
text_input: &TextInput<'_, Message>,
bounds: Rectangle,
text_bounds: Rectangle,
cursor_position: Point,
) -> Self::Output;
}
impl<'a, Message, Renderer> From<TextInput<'a, Message>>
for Element<'a, Message, Renderer>
where
Renderer: 'static + self::Renderer,
Message: 'static + Clone + std::fmt::Debug,
{
fn from(
text_input: TextInput<'a, Message>,
) -> Element<'a, Message, Renderer> {
Element::new(text_input)
}
}
|
