Implement attribute expansion

README.md

@@ -87,6 +87,7 @@ Detailed operations on each view can be displayed by pressing `?` key.
 <img src="./img/table-list-detail-kv.png" width=500>
 <img src="./img/table-list-detail-json.png" width=500>
 <img src="./img/table.png" width=500>
+<img src="./img/table-expand-attr.png" width=500>
 <img src="./img/item-kv.png" width=500>
 <img src="./img/item-plain-json.png" width=500>
 <img src="./img/item-raw-json.png" width=500>

img/demo.tape

@@ -52,7 +52,17 @@ Sleep 1s
 Type@200ms "lllllllllll"
 Sleep 1s
 Type@500ms "fff"
+Sleep 500ms
+Type@200ms "hhh"
+Type "e"
 Sleep 1s
+Type "n"
+Sleep 500ms
+Screenshot "./img/table-expand-attr.png"
+Type@200ms "jjjjj"
+Sleep 500ms
+Type "e"
+Sleep 500ms
 Type "^"
 Sleep 500ms
 Type@500ms "jjj"

src/data.rs

@@ -431,7 +431,13 @@ impl Serialize for Attribute {
     }
 }
 
-struct RawAttributeJsonWrapper<'a>(&'a Attribute);
+pub struct RawAttributeJsonWrapper<'a>(&'a Attribute);
+
+impl RawAttributeJsonWrapper<'_> {
+    pub fn new(attr: &Attribute) -> RawAttributeJsonWrapper {
+        RawAttributeJsonWrapper(attr)
+    }
+}
 
 impl Serialize for RawAttributeJsonWrapper<'_> {
     fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>

src/event.rs

@@ -93,6 +93,7 @@ pub enum UserEvent {
     NextPreview,
     PrevPreview,
     Insight,
+    Expand,
     ToggleWrap,
     ToggleNumber,
     CopyToClipboard,
@@ -129,6 +130,7 @@ impl UserEventMapper {
             (KeyEvent::new(KeyCode::Char('v'), KeyModifiers::NONE), UserEvent::NextPreview),
             (KeyEvent::new(KeyCode::Char('V'), KeyModifiers::SHIFT), UserEvent::PrevPreview),
             (KeyEvent::new(KeyCode::Char('i'), KeyModifiers::NONE), UserEvent::Insight),
+            (KeyEvent::new(KeyCode::Char('e'), KeyModifiers::NONE), UserEvent::Expand),
             (KeyEvent::new(KeyCode::Char('w'), KeyModifiers::NONE), UserEvent::ToggleWrap),
             (KeyEvent::new(KeyCode::Char('n'), KeyModifiers::NONE), UserEvent::ToggleNumber),
             (KeyEvent::new(KeyCode::Char('c'), KeyModifiers::NONE), UserEvent::CopyToClipboard),