Fix random tags order and add local randomizer for sequences

src/randomizer.rs

@@ -0,0 +1,71 @@
+
+pub mod randomizer {
+    use crate::randomizer::randomizer::RandomizerMessage::{Back, Start};
+    use crate::{NavigatedPage, Page, RootMessage};
+    use iced::widget::{button, container, text_editor};
+    use iced::Task;
+    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(&self, message: &RandomizerMessage) -> Option<Page> {
+            if let RandomizerMessage::Back = message {
+                return Some(Page::PreviousPage);
+            }
+            None
+        }
+    }
+
+    impl Default for RandomizerState {
+        fn default() -> Self {
+            Self::new()
+        }
+    }
+
+    impl RandomizerState {
+        pub fn new() -> RandomizerState {
+            RandomizerState { text: Default::default(), list: vec![] }
+        }
+
+        pub fn update(&mut self, message: RandomizerMessage) -> Task<RootMessage> {
+            match message {
+                RandomizerMessage::Edit(action) => {
+                    self.text.perform(action);
+                    self.list = self.text.text().split("\n").map(|s| s.to_string()).collect();
+                },
+                RandomizerMessage::Start => {
+                    self.list.shuffle(&mut rand::rng());
+                    self.text = text_editor::Content::with_text(self.list.join("\n").as_str());
+                }
+                _ => {}
+            }
+            Task::none()
+        }
+
+        pub fn view(&self) -> iced::Element<'_, RandomizerMessage> {
+            container(
+                    iced::widget::column![
+                        button("Назад").on_press(Back),
+                        text_editor(&self.text).on_action(RandomizerMessage::Edit
+                        ).width(400).height(400).placeholder("Каждый элемент с новой строки"),
+                        button("Начать").on_press(Start),
+                    ]
+                    .spacing(5),
+            )
+            .padding(10)
+            .into()
+        }
+    }
+}