correct the update method to get the return type[Task<T>]

昨天用rustup更新了一下，不知道为什么连info都会提示我调了unsafe方法，要求我把它放进unsafe块中，日了狗，先记录一下再说吧

Cargo.toml

@@ -10,6 +10,7 @@ iced = { git = "https://github.com/iced-rs/iced.git", features = [
   "advanced",
   "image",
   "sipper",
+  "tokio",
 ] }
 tokio = { version = "1.45.1", features = ["full"] }
 reqwest = "0.12.20"
@@ -47,6 +48,8 @@ iced_futures = { version = "0.13.2", features = [
   "thread-pool",
 ] }
 num_enum = "0.7.4"
+trace = "0.1.7"
+tracing = "0.1.41"
 
 
 [build-dependencies]

README.md

@@ -23,4 +23,3 @@
 
 ## 忐忑
 * 本软件的3D封装下载调用了jlc的api，不知道哪天就收到了某函，所以暂时只在本站开源了，在未想办法解决掉该可能引起纠纷的事项之前不想广泛传播，所以也请各位道友手下留情，不要随意传播本软件
-中 东奔西跑黑暗 

src/ui/db_browser.rs

@@ -1,5 +1,5 @@
-use iced::{Length, alignment::Horizontal, widget::Column};
+use iced::{Length, Task, alignment::Horizontal, widget::Column};
-use log::info;
+use tracing::info;
 
 use crate::ui::main_window::{MainWindowMsg, TabContent};
 
@@ -14,12 +14,13 @@ pub enum DbBrowserMsg {
 impl TabContent for DbBrowser {
     type TabMessage = DbBrowserMsg;
 
-    fn update(&mut self, msg: Self::TabMessage) {
+    fn update(&mut self, msg: Self::TabMessage) -> Task<MainWindowMsg> {
         match msg {
             DbBrowserMsg::Nothing => {
                 info!("This function not allowed");
             }
         }
+        Task::none()
     }
 
     fn content(&self) -> iced::Element<'_, MainWindowMsg> {

src/ui/home_page.rs

@@ -1,5 +1,5 @@
-use iced::{Length, alignment::Horizontal, widget::Column};
+use iced::{Length, Task, alignment::Horizontal, widget::Column};
-use log::info;
+use tracing::info;
 
 #[allow(unused_imports)]
 use crate::ui::main_window::{MainWindowMsg, TabContent};
@@ -66,7 +66,7 @@ impl TabContent for HomePage {
 
     type TabMessage = HomePageMsg;
 
-    fn update(&mut self, msg: Self::TabMessage) {
+    fn update(&mut self, msg: Self::TabMessage) -> Task<MainWindowMsg> {
         match msg {
             HomePageMsg::Nothing => {
                 info!("This way ok.");
@@ -96,5 +96,6 @@ impl TabContent for HomePage {
                 info!("Is the message you should process ?  =====>>  {msg:?}");
             }
         }
+        Task::none()
     }
 }

src/ui/jlc_downloader.rs

@@ -1,7 +1,7 @@
 use crate::ui::main_window::{MainWindowMsg, TabContent};
 use anyhow::Result;
-use iced::{Length, alignment::Horizontal, widget::Column};
+use iced::{Length, Task, alignment::Horizontal, widget::Column};
-use log::info;
+use tracing::info;
 
 #[derive(Default)]
 pub struct JlcDownloader {
@@ -19,7 +19,7 @@ pub enum JlcDownloaderMsg {
 impl TabContent for JlcDownloader {
     type TabMessage = JlcDownloaderMsg;
 
-    fn update(&mut self, msg: Self::TabMessage) {
+    fn update(&mut self, msg: Self::TabMessage) -> Task<MainWindowMsg> {
         match msg {
             JlcDownloaderMsg::Nothing => {
                 info!("JlcDownloaderMsg::Nothing");
@@ -34,6 +34,7 @@ impl TabContent for JlcDownloader {
                 info!("Whach out the msg: {msg:?}");
             }
         }
+        Task::none()
     }
 
     fn content(&self) -> iced::Element<'_, MainWindowMsg> {
@@ -61,6 +62,13 @@ pub struct KeywordSearchItem {
 }
 impl JlcDownloader {
     pub async fn search_keyword(keyword: &str) -> Result<Vec<KeywordSearchItem>> {
+        if keyword.is_empty() {
+            tokio::time::sleep(tokio::time::Duration::from_secs(1));
+            info!("The keyword is empty.");
+            return Err(anyhow::Error::msg(
+                "Please insert the keyword before search",
+            ));
+        }
         tokio::time::sleep(tokio::time::Duration::from_secs(2)).await;
         for i in 0..10 {
             tokio::time::sleep(tokio::time::Duration::from_secs(2)).await;
@@ -68,6 +76,9 @@ impl JlcDownloader {
         }
         Ok(Vec::new())
     }
+    pub async fn keyword_search_task() -> Result<Vec<KeywordSearchItem>> {
+        Ok(Vec::new())
+    }
     pub async fn fetch_item_images(
         item: &KeywordSearchItem,
     ) -> Result<Vec<iced::widget::image::Handle>> {

src/ui/main_window.rs

@@ -7,8 +7,8 @@ use crate::ui::part_viewer::PartViewerMsg;
 use crate::utils::step_downloader;
 use iced::Subscription;
 use iced::Task;
-use log::info;
+use tracing::info;
-use log::warn;
+use tracing::warn;
 
 #[allow(unused_imports)]
 use super::db_browser;
@@ -65,7 +65,7 @@ impl MainWindow {
         (
             Self::default(),
             Task::batch([
-                Task::perform(JlcDownloader::search_keyword("test"), |x| match x {
+                Task::perform(JlcDownloader::search_keyword(""), |x| match x {
                     Ok(v) => MainWindowMsg::JlcDownloader(JlcDownloaderMsg::KeywordSearchResult(v)),
                     Err(e) => MainWindowMsg::JlcDownloader(JlcDownloaderMsg::KeywordSearchError(
                         format!("{e:?}"),
@@ -192,7 +192,7 @@ impl MainWindow {
         let btn = button(txt).style(bstyle);
         btn.on_press(MainWindowMsg::TabSelected(tab)).into()
     }
-    fn update(&mut self, msg: MainWindowMsg) {
+    fn update(&mut self, msg: MainWindowMsg) -> Task<MainWindowMsg> {
         info!("Process the msg: {msg:?}");
         match msg {
             MainWindowMsg::ThemeChanged(theme) => {
@@ -200,37 +200,35 @@ impl MainWindow {
                 if let Some(idx) = Theme::ALL.iter().position(|x| x == &theme) {
                     crate::utils::app_settings::set_curr_theme(idx as u32).unwrap();
                 }
+                Task::none()
             }
             MainWindowMsg::TitleChanged(title) => {
                 self.title = title;
+                Task::none()
             }
             MainWindowMsg::Nothing => {
                 info!("Nothing");
                 iced::debug::time("Test".to_owned());
+                Task::none()
             }
             MainWindowMsg::TabSelected(i) => {
                 self.curr_tab = i;
                 self.curr_tab.save();
+                Task::none()
             }
             MainWindowMsg::HomePage(msg) => {
                 info!("update HomePage");
-                self.home_page.update(msg);
+                self.home_page.update(msg)
-            }
-            MainWindowMsg::JlcDownloader(msg) => {
-                self.jlc_downloader.update(msg);
-            }
-            MainWindowMsg::DbBrowser(msg) => {
-                self.db_browser.update(msg);
-            }
-            MainWindowMsg::PartViewer(part_viewer_msg) => {
-                self.part_viewer.update(part_viewer_msg);
-            }
-            MainWindowMsg::SearchKeywordChanged(k) => {
-                self.jlc_downloader
-                    .update(JlcDownloaderMsg::KeywordChanged(k));
             }
+            MainWindowMsg::JlcDownloader(msg) => self.jlc_downloader.update(msg),
+            MainWindowMsg::DbBrowser(msg) => self.db_browser.update(msg),
+            MainWindowMsg::PartViewer(part_viewer_msg) => self.part_viewer.update(part_viewer_msg),
+            MainWindowMsg::SearchKeywordChanged(k) => self
+                .jlc_downloader
+                .update(JlcDownloaderMsg::KeywordChanged(k)),
             MainWindowMsg::StepDownloader(msg) => {
                 info!("StepDownloaderEvent: {msg:?}");
+                Task::none()
             }
         }
     }
@@ -254,7 +252,7 @@ impl MainWindow {
 
 pub trait TabContent {
     type TabMessage;
-    fn update(&mut self, msg: Self::TabMessage);
+    fn update(&mut self, msg: Self::TabMessage) -> Task<MainWindowMsg>;
     fn view(&self) -> Element<'_, MainWindowMsg> {
         iced::widget::Container::new(self.content())
             .width(Length::Fill)

src/ui/part_viewer.rs

@@ -1,5 +1,5 @@
-use iced::{Length, alignment::Horizontal, widget::Column};
+use iced::{Length, Task, alignment::Horizontal, widget::Column};
-use log::info;
+use tracing::info;
 
 use crate::ui::main_window::{MainWindowMsg, TabContent};
 
@@ -14,12 +14,13 @@ pub enum PartViewerMsg {
 impl TabContent for PartViewer {
     type TabMessage = PartViewerMsg;
 
-    fn update(&mut self, msg: Self::TabMessage) {
+    fn update(&mut self, msg: Self::TabMessage) -> Task<MainWindowMsg> {
         match msg {
             PartViewerMsg::Nothing => {
                 info!("This function not allowed.");
             }
         }
+        Task::none()
     }
 
     fn content(&self) -> iced::Element<'_, MainWindowMsg> {