majc: move show to its own function

majc/src/help.gmi

@@ -18,6 +18,7 @@ The main homepage for majc is on tulpa.dev:
 ## Important Keys
 
 <esc>: opens the menubar
+c: closes the active window
 o: prompts to open a URL
 q: quits majc
 ?: shows this screen

majc/src/main.rs

@@ -5,12 +5,17 @@ use cursive::{
     views::{Dialog, EditView, Panel, ResizedView, TextView},
     Cursive,
 };
+use maj::{self, Response, StatusCode};
+use std::str;
 
 fn main() {
     cursive::logger::init();
 
     let mut siv = cursive::default();
 
+    siv.add_global_callback('c', |s| {
+        s.pop_layer();
+    });
     siv.add_global_callback('q', cursive::Cursive::quit);
     siv.add_global_callback('~', cursive::Cursive::toggle_debug_console);
     siv.add_global_callback('o', open_prompt);
@@ -33,6 +38,7 @@ fn main() {
         )
         .add_leaf("Open", |s| open_prompt(s));
 
+    siv.set_autohide_menu(false);
     siv.add_global_callback(Key::Esc, |s| s.select_menubar());
 
     help(&mut siv);
@@ -72,25 +78,12 @@ fn open_prompt(siv: &mut Cursive) {
 }
 
 fn open(siv: &mut Cursive, url: &str) {
-    use maj::{get, StatusCode};
-    use std::str;
-
     siv.pop_layer();
     log::debug!("got URL: {}", url);
 
-    match get(url.to_string()) {
+    match maj::get(url.to_string()) {
         Ok(resp) => {
-            if resp.status != StatusCode::Success {
+            show(siv, url, resp);
-                siv.add_layer(Dialog::info(format!("{:?}: {}", resp.status, resp.meta)));
-                return;
-            }
-
-            siv.add_fullscreen_layer(ResizedView::with_full_screen(
-                Dialog::around(Panel::new(
-                    TextView::new(str::from_utf8(&resp.body).unwrap()).scrollable(),
-                ))
-                .title(format!("{}: {}", url, resp.meta)),
-            ));
         }
         Err(why) => {
             log::error!("got response error: {:?}", why);
@@ -98,3 +91,25 @@ fn open(siv: &mut Cursive, url: &str) {
         }
     }
 }
+
+fn show(siv: &mut Cursive, url: &str, resp: Response) {
+    if resp.status != StatusCode::Success {
+        siv.add_layer(Dialog::info(format!("{:?}: {}", resp.status, resp.meta)));
+        return;
+    }
+
+    match str::from_utf8(&resp.body) {
+        Ok(content) => {
+            siv.add_fullscreen_layer(ResizedView::with_full_screen(
+                Dialog::around(TextView::new(content).scrollable())
+                    .title(format!("{}: {}", url, resp.meta)),
+            ));
+        }
+        Err(why) => {
+            siv.add_layer(Dialog::info(format!(
+                "UTF/8 decoding error for {}: {:?}",
+                url, why
+            )));
+        }
+    }
+}