nicely wrap and split on colon for paths

src/components/finders.rs

@@ -15,6 +15,16 @@ pub struct Entry {
     pub line_number: Option<usize>,
 }
 
+pub const ENTRY_PLACEHOLDER: Entry = Entry {
+    name: String::new(),
+    preview: None,
+    score: 0,
+    name_match_ranges: None,
+    preview_match_ranges: None,
+    icon: None,
+    line_number: None,
+};
+
 /// A trait for a finder that can find entries based on a pattern.
 /// The `find` method takes a pattern and returns an iterator over the entries found.
 ///

src/components/previewers.rs

@@ -8,6 +8,7 @@ pub use env::EnvVarPreviewer;
 #[derive(Debug, Clone)]
 pub enum PreviewContent {
     PlainText(String),
+    PlainTextWrapped(String),
     HighlightedText(String),
     Empty,
 }

src/components/previewers/env.rs

@@ -24,7 +24,7 @@ impl Previewer for EnvVarPreviewer {
         let preview = Preview {
             title: entry.name.clone(),
             content: if let Some(preview) = &entry.preview {
-                PreviewContent::PlainText(add_newline_after_colon(&preview))
+                PreviewContent::PlainTextWrapped(add_newline_after_colon(&preview))
             } else {
                 PreviewContent::Empty
             },

src/components/television.rs

@@ -5,7 +5,7 @@ use ratatui::{
     text::{Line, Span, Text},
     widgets::{
         block::{Position, Title},
-        Block, BorderType, Borders, List, ListDirection, ListState, Padding, Paragraph,
+        Block, BorderType, Borders, List, ListDirection, ListState, Padding, Paragraph, Wrap,
     },
     Frame,
 };
@@ -26,6 +26,7 @@ use crate::{
 };
 
 use super::{
+    finders::ENTRY_PLACEHOLDER,
     input::{backend::EventHandler, Input, InputRequest, StateChanged},
     pickers::{get_tv_channel, TvChannel},
 };
@@ -82,6 +83,13 @@ impl Television {
         Ok(())
     }
 
+    fn get_selected_entry(&self) -> Option<&Entry> {
+        self.results_list
+            .state
+            .selected()
+            .and_then(|i| self.results_list.results.get(i))
+    }
+
     pub fn select_prev_entry(&mut self) {
         let selected = self.results_list.state.selected().unwrap_or(0);
         let total_search_results = self.results_list.results.len();
@@ -365,48 +373,48 @@ impl Component for Television {
         }
 
         // top right block: preview title
-        // TODO: update this to always show the preview pane
-        if let Some(selected) = self.results_list.state.selected() {
-            let entry = &self.results_list.results[selected];
-            let preview = self.channel.get_preview(entry);
-            let preview_title = Paragraph::new(Line::from(preview.title.clone()))
-                .block(
-                    Block::default()
-                        .borders(Borders::ALL)
-                        .border_type(BorderType::Rounded)
-                        .border_style(self.get_border_style(false)),
-                )
-                .style(Style::default().fg(DEFAULT_PREVIEW_TITLE_FG))
-                .alignment(Alignment::Left);
-            frame.render_widget(preview_title, preview_title_area);
-
-            // file preview
-            let preview_outer_block = Block::default()
-                .title(
-                    Title::from(" Preview ")
-                        .position(Position::Top)
-                        .alignment(Alignment::Center),
-                )
-                .borders(Borders::ALL)
-                .border_type(BorderType::Rounded)
-                .border_style(self.get_border_style(Pane::Preview == self.current_pane))
-                .style(Style::default())
-                .padding(Padding::right(1));
-
-            let preview_inner_block = Block::default().style(Style::default()).padding(Padding {
-                top: 0,
-                right: 1,
-                bottom: 0,
-                left: 1,
-            });
-            let inner = preview_outer_block.inner(preview_area);
-            frame.render_widget(preview_outer_block, preview_area);
-
-            //app.preview_pane_height = inner.height;
-            let preview = self.build_preview(preview_inner_block, preview);
-
-            frame.render_widget(preview, inner);
-        }
+        let selected_entry = self.get_selected_entry();
+
+        let preview = self
+            .channel
+            .get_preview(&selected_entry.unwrap_or(&ENTRY_PLACEHOLDER).clone());
+        let preview_title = Paragraph::new(Line::from(preview.title.clone()))
+            .block(
+                Block::default()
+                    .borders(Borders::ALL)
+                    .border_type(BorderType::Rounded)
+                    .border_style(self.get_border_style(false)),
+            )
+            .style(Style::default().fg(DEFAULT_PREVIEW_TITLE_FG))
+            .alignment(Alignment::Left);
+        frame.render_widget(preview_title, preview_title_area);
+
+        // file preview
+        let preview_outer_block = Block::default()
+            .title(
+                Title::from(" Preview ")
+                    .position(Position::Top)
+                    .alignment(Alignment::Center),
+            )
+            .borders(Borders::ALL)
+            .border_type(BorderType::Rounded)
+            .border_style(self.get_border_style(Pane::Preview == self.current_pane))
+            .style(Style::default())
+            .padding(Padding::right(1));
+
+        let preview_inner_block = Block::default().style(Style::default()).padding(Padding {
+            top: 0,
+            right: 1,
+            bottom: 0,
+            left: 1,
+        });
+        let inner = preview_outer_block.inner(preview_area);
+        frame.render_widget(preview_outer_block, preview_area);
+
+        //app.preview_pane_height = inner.height;
+        let preview = self.build_preview(preview_inner_block, preview);
+
+        frame.render_widget(preview, inner);
 
         Ok(())
     }
@@ -534,30 +542,46 @@ impl Television {
         preview: Preview,
     ) -> Paragraph<'a> {
         let preview_content = preview.content.clone();
-        let text = match preview_content {
+        match preview_content {
             PreviewContent::PlainText(content) => {
-                let mut spans = Vec::new();
+                let mut lines = Vec::new();
                 for line in content.lines() {
-                    spans.push(Span::styled(
+                    lines.push(Line::styled(
                         line.to_string(),
                         Style::default().fg(DEFAULT_RESULT_PREVIEW_FG),
                     ));
                 }
-                Text::from(Line::from(spans))
+                let text = Text::from(lines);
+                Paragraph::new(text).block(preview_block)
+            }
+            PreviewContent::PlainTextWrapped(content) => {
+                let mut lines = Vec::new();
+                for line in content.lines() {
+                    lines.push(Line::styled(
+                        line.to_string(),
+                        Style::default().fg(DEFAULT_RESULT_PREVIEW_FG),
+                    ));
+                }
+                let text = Text::from(lines);
+                Paragraph::new(text)
+                    .block(preview_block)
+                    .wrap(Wrap { trim: true })
             }
             PreviewContent::HighlightedText(content) => {
-                let mut spans = Vec::new();
+                let mut lines = Vec::new();
                 for line in content.lines() {
-                    spans.push(Span::styled(
+                    lines.push(Line::styled(
                         line.to_string(),
                         Style::default().fg(DEFAULT_RESULT_PREVIEW_FG),
                     ));
                 }
-                Text::from(Line::from(spans))
+                let text = Text::from(lines);
+                Paragraph::new(text)
+                    .block(preview_block)
+                    .wrap(Wrap { trim: true })
             }
-            PreviewContent::Empty => Text::raw(EMPTY_STRING),
-        };
-        Paragraph::new(text).block(preview_block)
+            PreviewContent::Empty => Paragraph::new(Text::raw(EMPTY_STRING)),
+        }
     }
 }