From ff2519b1d43d481987351a83b6dd7237524c21f0 Mon Sep 17 00:00:00 2001 From: Héctor Ramón Jiménez Date: Wed, 27 Jul 2022 06:49:20 +0200 Subject: Replace stateful widgets with new `iced_pure` API --- native/src/widget/text_input.rs | 233 +++++++++++++++++++++------------------- 1 file changed, 120 insertions(+), 113 deletions(-) (limited to 'native/src/widget/text_input.rs') diff --git a/native/src/widget/text_input.rs b/native/src/widget/text_input.rs index fd360cd7..4ef9e11b 100644 --- a/native/src/widget/text_input.rs +++ b/native/src/widget/text_input.rs @@ -19,6 +19,7 @@ use crate::mouse::{self, click}; use crate::renderer; use crate::text::{self, Text}; use crate::touch; +use crate::widget::tree::{self, Tree}; use crate::{ Clipboard, Color, Element, Layout, Length, Padding, Point, Rectangle, Shell, Size, Vector, Widget, @@ -30,20 +31,15 @@ pub use iced_style::text_input::{Appearance, StyleSheet}; /// /// # Example /// ``` -/// # use iced_native::renderer::Null; -/// # use iced_native::widget::text_input; -/// # -/// # pub type TextInput<'a, Message> = iced_native::widget::TextInput<'a, Message, Null>; +/// # pub type TextInput<'a, Message> = iced_native::widget::TextInput<'a, Message, iced_native::renderer::Null>; /// #[derive(Debug, Clone)] /// enum Message { /// TextInputChanged(String), /// } /// -/// let mut state = text_input::State::new(); /// let value = "Some text"; /// /// let input = TextInput::new( -/// &mut state, /// "This is the placeholder...", /// value, /// Message::TextInputChanged, @@ -57,7 +53,6 @@ where Renderer: text::Renderer, Renderer::Theme: StyleSheet, { - state: &'a mut State, placeholder: String, value: Value, is_secure: bool, @@ -80,21 +75,14 @@ where /// Creates a new [`TextInput`]. /// /// It expects: - /// - some [`State`] - /// - a placeholder - /// - the current value - /// - a function that produces a message when the [`TextInput`] changes - pub fn new( - state: &'a mut State, - placeholder: &str, - value: &str, - on_change: F, - ) -> Self + /// - a placeholder, + /// - the current value, and + /// - a function that produces a message when the [`TextInput`] changes. + pub fn new(placeholder: &str, value: &str, on_change: F) -> Self where F: 'a + Fn(String) -> Message, { TextInput { - state, placeholder: String::from(placeholder), value: Value::new(value), is_secure: false, @@ -127,7 +115,7 @@ where /// Sets the [`Font`] of the [`TextInput`]. /// - /// [`Font`]: crate::text::Renderer::Font + /// [`Font`]: text::Renderer::Font pub fn font(mut self, font: Renderer::Font) -> Self { self.font = font; self @@ -166,17 +154,13 @@ where self } - /// Returns the current [`State`] of the [`TextInput`]. - pub fn state(&self) -> &State { - self.state - } - /// Draws the [`TextInput`] with the given [`Renderer`], overriding its - /// [`Value`] if provided. + /// [`text_input::Value`] if provided. /// /// [`Renderer`]: text::Renderer pub fn draw( &self, + tree: &Tree, renderer: &mut Renderer, theme: &Renderer::Theme, layout: Layout<'_>, @@ -188,7 +172,7 @@ where theme, layout, cursor_position, - self.state, + tree.state.downcast_ref::(), value.unwrap_or(&self.value), &self.placeholder, self.size, @@ -199,6 +183,116 @@ where } } +impl<'a, Message, Renderer> Widget + for TextInput<'a, Message, Renderer> +where + Message: Clone, + Renderer: text::Renderer, + Renderer::Theme: StyleSheet, +{ + fn tag(&self) -> tree::Tag { + tree::Tag::of::() + } + + fn state(&self) -> tree::State { + tree::State::new(State::new()) + } + + fn width(&self) -> Length { + self.width + } + + fn height(&self) -> Length { + Length::Shrink + } + + fn layout( + &self, + renderer: &Renderer, + limits: &layout::Limits, + ) -> layout::Node { + layout(renderer, limits, self.width, self.padding, self.size) + } + + fn on_event( + &mut self, + tree: &mut Tree, + event: Event, + layout: Layout<'_>, + cursor_position: Point, + renderer: &Renderer, + clipboard: &mut dyn Clipboard, + shell: &mut Shell<'_, Message>, + ) -> event::Status { + update( + event, + layout, + cursor_position, + renderer, + clipboard, + shell, + &mut self.value, + self.size, + &self.font, + self.is_secure, + self.on_change.as_ref(), + self.on_paste.as_deref(), + &self.on_submit, + || tree.state.downcast_mut::(), + ) + } + + fn draw( + &self, + tree: &Tree, + renderer: &mut Renderer, + theme: &Renderer::Theme, + _style: &renderer::Style, + layout: Layout<'_>, + cursor_position: Point, + _viewport: &Rectangle, + ) { + draw( + renderer, + theme, + layout, + cursor_position, + tree.state.downcast_ref::(), + &self.value, + &self.placeholder, + self.size, + &self.font, + self.is_secure, + self.style, + ) + } + + fn mouse_interaction( + &self, + _state: &Tree, + layout: Layout<'_>, + cursor_position: Point, + _viewport: &Rectangle, + _renderer: &Renderer, + ) -> mouse::Interaction { + mouse_interaction(layout, cursor_position) + } +} + +impl<'a, Message, Renderer> From> + for Element<'a, Message, Renderer> +where + Message: 'a + Clone, + Renderer: 'a + text::Renderer, + Renderer::Theme: StyleSheet, +{ + fn from( + text_input: TextInput<'a, Message, Renderer>, + ) -> Element<'a, Message, Renderer> { + Element::new(text_input) + } +} + /// Computes the layout of a [`TextInput`]. pub fn layout( renderer: &Renderer, @@ -777,93 +871,6 @@ pub fn mouse_interaction( } } -impl<'a, Message, Renderer> Widget - for TextInput<'a, Message, Renderer> -where - Message: Clone, - Renderer: text::Renderer, - Renderer::Theme: StyleSheet, -{ - fn width(&self) -> Length { - self.width - } - - fn height(&self) -> Length { - Length::Shrink - } - - fn layout( - &self, - renderer: &Renderer, - limits: &layout::Limits, - ) -> layout::Node { - layout(renderer, limits, self.width, self.padding, self.size) - } - - fn on_event( - &mut self, - event: Event, - layout: Layout<'_>, - cursor_position: Point, - renderer: &Renderer, - clipboard: &mut dyn Clipboard, - shell: &mut Shell<'_, Message>, - ) -> event::Status { - update( - event, - layout, - cursor_position, - renderer, - clipboard, - shell, - &mut self.value, - self.size, - &self.font, - self.is_secure, - self.on_change.as_ref(), - self.on_paste.as_deref(), - &self.on_submit, - || &mut self.state, - ) - } - - fn mouse_interaction( - &self, - layout: Layout<'_>, - cursor_position: Point, - _viewport: &Rectangle, - _renderer: &Renderer, - ) -> mouse::Interaction { - mouse_interaction(layout, cursor_position) - } - - fn draw( - &self, - renderer: &mut Renderer, - theme: &Renderer::Theme, - _style: &renderer::Style, - layout: Layout<'_>, - cursor_position: Point, - _viewport: &Rectangle, - ) { - self.draw(renderer, theme, layout, cursor_position, None) - } -} - -impl<'a, Message, Renderer> From> - for Element<'a, Message, Renderer> -where - Message: 'a + Clone, - Renderer: 'a + text::Renderer, - Renderer::Theme: StyleSheet, -{ - fn from( - text_input: TextInput<'a, Message, Renderer>, - ) -> Element<'a, Message, Renderer> { - Element::new(text_input) - } -} - /// The state of a [`TextInput`]. #[derive(Debug, Default, Clone)] pub struct State { -- cgit