feat: add yank in text preview

README.md

@@ -17,6 +17,7 @@ STU provides the following features:
 
 - Recursive object downloads
 - Previews with syntax highlighting for text files and inline rendering for images
+- Yank text content to clipboard from preview
 - Access to previous object versions
 - Customizable key bindings
 - Support for S3-compatible storage

assets/keybindings.toml

@@ -72,6 +72,7 @@ download_as = ["shift-s"]
 encoding = ["e"]
 toggle_wrap = ["w"]
 toggle_number = ["n"]
+yank = ["y"]
 
 [help]
 close = ["?", "backspace"]

docs/src/features/object-preview.md

@@ -10,6 +10,8 @@
     - It must be enabled in the [config](../configurations/config-file-format.md#previewauto_detect_encoding)
 - Download object
   - Download a single selected object
+- Yank content to clipboard
+  - Press <kbd>y</kbd> to copy the text content to clipboard
 
 ![Object Preview](https://raw.githubusercontent.com/lusingander/stu/refs/heads/master/img/object-preview.png)
 ![Object Preview Image](https://raw.githubusercontent.com/lusingander/stu/refs/heads/master/img/object-preview-image.png)

src/keys.rs

@@ -68,6 +68,7 @@ pub enum UserEvent {
     ObjectPreviewEncoding,
     ObjectPreviewToggleWrap,
     ObjectPreviewToggleNumber,
+    ObjectPreviewYank,
     HelpClose,
     InputDialogClose,
     InputDialogApply,
@@ -183,6 +184,7 @@ fn build_user_event_mapper(
     set_event_to_map(&mut map, &bindings, "object_preview", "encoding", UserEvent::ObjectPreviewEncoding)?;
     set_event_to_map(&mut map, &bindings, "object_preview", "toggle_wrap", UserEvent::ObjectPreviewToggleWrap)?;
     set_event_to_map(&mut map, &bindings, "object_preview", "toggle_number", UserEvent::ObjectPreviewToggleNumber)?;
+    set_event_to_map(&mut map, &bindings, "object_preview", "yank", UserEvent::ObjectPreviewYank)?;
 
     set_event_to_map(&mut map, &bindings, "help", "close", UserEvent::HelpClose)?;
 

src/pages/object_preview.rs

@@ -6,6 +6,7 @@ use crate::{
     app::AppContext,
     environment::ImagePicker,
     event::{AppEventType, Sender},
+    file::copy_to_clipboard,
     handle_user_events, handle_user_events_with_default,
     help::{
         build_help_spans, build_short_help_spans, BuildHelpsItem, BuildShortHelpsItem, Spans,
@@ -141,6 +142,9 @@ impl ObjectPreviewPage {
                     UserEvent::ObjectPreviewEncoding => {
                         self.open_encoding_dialog();
                     }
+                    UserEvent::ObjectPreviewYank => {
+                        self.yank_text_content();
+                    }
                     UserEvent::Help => {
                         self.tx.send(AppEventType::OpenHelp);
                     }
@@ -264,6 +268,7 @@ impl ObjectPreviewPage {
                     BuildHelpsItem::new(UserEvent::ObjectPreviewDownload, "Download object"),
                     BuildHelpsItem::new(UserEvent::ObjectPreviewDownloadAs, "Download object as"),
                     BuildHelpsItem::new(UserEvent::ObjectPreviewEncoding, "Open encoding dialog"),
+                    BuildHelpsItem::new(UserEvent::ObjectPreviewYank, "Yank content to clipboard"),
                 ]
             },
             (ViewState::Default, PreviewType::Image(_)) => {
@@ -304,6 +309,7 @@ impl ObjectPreviewPage {
                     BuildShortHelpsItem::group(vec![UserEvent::ObjectPreviewGoToTop, UserEvent::ObjectPreviewGoToBottom], "Top/End", 5),
                     BuildShortHelpsItem::group(vec![UserEvent::ObjectPreviewDownload, UserEvent::ObjectPreviewDownloadAs], "Download", 3),
                     BuildShortHelpsItem::single(UserEvent::ObjectPreviewEncoding, "Encoding", 4),
+                    BuildShortHelpsItem::single(UserEvent::ObjectPreviewYank, "Yank", 4),
                     BuildShortHelpsItem::single(UserEvent::ObjectPreviewBack, "Close", 1),
                     BuildShortHelpsItem::single(UserEvent::Help, "Help", 0),
                 ]
@@ -342,6 +348,23 @@ impl ObjectPreviewPage {
         self.view_state = ViewState::SaveDialog(InputDialogState::new(name));
     }
 
+    fn yank_text_content(&mut self) {
+        if let PreviewType::Text(state) = &self.preview_type {
+            let encoding: &encoding_rs::Encoding = state.encoding.into();
+            let (content, _, _) = encoding.decode(&self.object.bytes);
+            let content_string = content.into_owned();
+
+            match copy_to_clipboard(content_string) {
+                Ok(_) => {
+                    self.tx.send(AppEventType::NotifyInfo("Content yanked to clipboard".to_string()));
+                }
+                Err(e) => {
+                    self.tx.send(AppEventType::NotifyError(e));
+                }
+            }
+        }
+    }
+
     fn close_save_dialog(&mut self) {
         self.view_state = ViewState::Default;
     }