149 lines
4.6 KiB
Rust
149 lines
4.6 KiB
Rust
use crate::{
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input::{keyboard, mouse, ButtonState},
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Element, Event, Hasher, Layout, Length, Node, Point, Rectangle, Style,
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Widget,
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};
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pub use iced_core::{text_input::State, TextInput};
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impl<'a, Message, Renderer> Widget<Message, Renderer> for TextInput<'a, Message>
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where
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Renderer: self::Renderer,
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Message: Clone + std::fmt::Debug,
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{
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fn node(&self, renderer: &Renderer) -> Node {
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let text_bounds =
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Node::new(Style::default().width(Length::Fill).height(
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Length::Units(self.size.unwrap_or(renderer.default_size())),
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));
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Node::with_children(
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Style::default()
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.width(self.width)
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.max_width(self.width)
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.padding(self.padding),
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vec![text_bounds],
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)
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}
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fn on_event(
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&mut self,
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event: Event,
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layout: Layout<'_>,
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cursor_position: Point,
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messages: &mut Vec<Message>,
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_renderer: &Renderer,
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) {
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match event {
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Event::Mouse(mouse::Event::Input {
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button: mouse::Button::Left,
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state: ButtonState::Pressed,
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}) => {
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self.state.is_focused =
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layout.bounds().contains(cursor_position);
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}
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Event::Keyboard(keyboard::Event::CharacterReceived(c))
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if self.state.is_focused && !c.is_control() =>
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{
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let cursor_position = self.state.cursor_position(&self.value);
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self.value.insert(cursor_position, c);
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self.state.move_cursor_right(&self.value);
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let message = (self.on_change)(self.value.to_string());
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messages.push(message);
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}
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Event::Keyboard(keyboard::Event::Input {
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key_code,
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state: ButtonState::Pressed,
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}) if self.state.is_focused => match key_code {
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keyboard::KeyCode::Enter => {
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if let Some(on_submit) = self.on_submit.clone() {
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messages.push(on_submit);
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}
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}
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keyboard::KeyCode::Backspace => {
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let cursor_position =
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self.state.cursor_position(&self.value);
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if cursor_position > 0 {
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self.state.move_cursor_left(&self.value);
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let _ = self.value.remove(cursor_position - 1);
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let message = (self.on_change)(self.value.to_string());
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messages.push(message);
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}
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}
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keyboard::KeyCode::Delete => {
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let cursor_position =
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self.state.cursor_position(&self.value);
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if cursor_position < self.value.len() {
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let _ = self.value.remove(cursor_position);
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let message = (self.on_change)(self.value.to_string());
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messages.push(message);
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}
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}
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keyboard::KeyCode::Left => {
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self.state.move_cursor_left(&self.value);
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}
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keyboard::KeyCode::Right => {
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self.state.move_cursor_right(&self.value);
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}
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_ => {}
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},
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_ => {}
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}
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}
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fn draw(
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&self,
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renderer: &mut Renderer,
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layout: Layout<'_>,
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cursor_position: Point,
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) -> Renderer::Output {
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let bounds = layout.bounds();
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let text_bounds = layout.children().next().unwrap().bounds();
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renderer.draw(&self, bounds, text_bounds, cursor_position)
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}
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fn hash_layout(&self, state: &mut Hasher) {
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use std::any::TypeId;
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use std::hash::Hash;
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TypeId::of::<TextInput<'static, ()>>().hash(state);
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self.width.hash(state);
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self.max_width.hash(state);
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self.padding.hash(state);
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self.size.hash(state);
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}
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}
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pub trait Renderer: crate::Renderer + Sized {
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fn default_size(&self) -> u16;
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fn draw<Message>(
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&mut self,
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text_input: &TextInput<'_, Message>,
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bounds: Rectangle,
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text_bounds: Rectangle,
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cursor_position: Point,
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) -> Self::Output;
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}
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impl<'a, Message, Renderer> From<TextInput<'a, Message>>
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for Element<'a, Message, Renderer>
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where
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Renderer: 'static + self::Renderer,
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Message: 'static + Clone + std::fmt::Debug,
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{
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fn from(
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text_input: TextInput<'a, Message>,
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) -> Element<'a, Message, Renderer> {
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Element::new(text_input)
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}
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}
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