Splitting kana set

src/pages/randomizer.rs

@@ -0,0 +1,81 @@
+use crate::navigation::RootMessage;
+use crate::navigation::{NavigatedPage, Page};
+use crate::pages::randomizer::RandomizerMessage::{Back, Edit, Start};
+use crate::styling::{HALF_SPACING, back_overlay, jl_button};
+use iced::Task;
+use iced::widget::{button, text_editor};
+use rand::prelude::SliceRandom;
+
+#[derive(Clone, Debug)]
+pub struct RandomizerState {
+    text: text_editor::Content,
+    list: Vec<String>,
+}
+
+#[derive(Debug, Clone)]
+pub enum RandomizerMessage {
+    Back,
+    Start,
+    Edit(text_editor::Action),
+}
+
+impl NavigatedPage<RandomizerMessage> for RandomizerState {
+    fn navigate(&mut self, message: &RandomizerMessage) -> Option<Page> {
+        if let Back = message {
+            return Some(Page::PreviousPage);
+        }
+        None
+    }
+
+    fn navigated(&mut self) {}
+    fn update(&mut self, message: RandomizerMessage) -> Task<RootMessage> {
+        match message {
+            Edit(action) => {
+                self.text.perform(action);
+                self.list = self
+                    .text
+                    .text()
+                    .split("\n")
+                    .map(|s| s.to_string())
+                    .collect();
+            }
+            Start => {
+                self.list.shuffle(&mut rand::rng());
+                self.text = text_editor::Content::with_text(self.list.join("\n").as_str());
+            }
+            _ => {}
+        }
+        Task::none()
+    }
+
+    fn view(&self) -> iced::Element<'_, RandomizerMessage> {
+        back_overlay(
+            iced::widget::column![
+                text_editor(&self.text)
+                    .on_action(Edit)
+                    .width(400)
+                    .height(400)
+                    .placeholder("Каждый элемент с новой строки"),
+                button("Перемешать").style(jl_button).on_press(Start),
+            ]
+            .spacing(HALF_SPACING)
+            .into(),
+            Back,
+        )
+    }
+}
+
+impl Default for RandomizerState {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
+impl RandomizerState {
+    pub fn new() -> RandomizerState {
+        RandomizerState {
+            text: Default::default(),
+            list: vec![],
+        }
+    }
+}