implement notice banner

src/app/browser/window/tab/item/page/content/text.rs

@@ -12,6 +12,7 @@ use std::rc::Rc;
 
 pub struct Meta {
     pub title: Option<String>,
+    pub notice: Option<String>,
 } // @TODO move to separated mod
 
 pub struct Text {
@@ -27,7 +28,15 @@ impl Text {
         gemtext: &str,
     ) -> Self {
         // Init gemtext reader
-        let gemini = Gemini::build(actions, base, gemtext).unwrap(); // @TODO handle
+        let (gemini, notice) = match Gemini::build(actions, base, gemtext) {
+            Ok(gemini) => (gemini, None),
+            Err(e) => {
+                let notice = e.message();
+                match e {
+                    gemini::Error::Multiline(gemini) => (gemini, Some(notice)),
+                }
+            }
+        };
 
         // Init container widget
         let clamp_scrollable = ClampScrollable::builder()
@@ -42,6 +51,7 @@ impl Text {
             text_view: gemini.text_view,
             meta: Meta {
                 title: gemini.title,
+                notice,
             },
             scrolled_window: ScrolledWindow::builder().child(&clamp_scrollable).build(),
         }
@@ -60,7 +70,10 @@ impl Text {
         Self {
             scrolled_window: ScrolledWindow::builder().child(&clamp_scrollable).build(),
             text_view,
-            meta: Meta { title: None },
+            meta: Meta {
+                title: None,
+                notice: None,
+            },
         }
     }
 
@@ -69,7 +82,10 @@ impl Text {
         Self {
             scrolled_window: ScrolledWindow::builder().child(&source).build(),
             text_view: source.into_text_view(),
-            meta: Meta { title: None },
+            meta: Meta {
+                title: None,
+                notice: None,
+            },
         }
     }
 }

src/app/browser/window/tab/item/page/content/text/gemini.rs

@@ -234,7 +234,7 @@ impl Gemini {
                                 // Skip other actions for this line
                                 continue;
                             }
-                            Err(e) => return Err(Error::Gemtext(e.to_string())),
+                            Err(_) => todo!(),
                         }
                     }
                 }
@@ -502,6 +502,10 @@ impl Gemini {
         }); // @TODO may be expensive for CPU, add timeout?
 
         // Result
-        Ok(Self { text_view, title })
+        if is_multiline_enabled {
+            Ok(Self { text_view, title })
+        } else {
+            Err(Error::Multiline(Self { text_view, title }))
+        }
     }
 }

src/app/browser/window/tab/item/page/content/text/gemini/error.rs

@@ -1,15 +1,12 @@
-use std::fmt::{Display, Formatter, Result};
-
-#[derive(Debug)]
 pub enum Error {
-    Gemtext(String),
+    Multiline(super::Gemini),
 }
 
-impl Display for Error {
-    fn fmt(&self, f: &mut Formatter) -> Result {
+impl Error {
+    pub fn message(&self) -> String {
         match self {
-            Self::Gemtext(e) => {
-                write!(f, "Gemtext error: {e}")
+            Self::Multiline(_) => {
+                "Invalid multiline markup! Gemtext format partially ignored.".to_string()
             }
         }
     }

src/app/browser/window/tab/item/page/notice.rs

@@ -0,0 +1,24 @@
+use adw::Banner;
+
+pub trait Notice {
+    fn notice() -> Self;
+    fn show(&self, title: &str);
+}
+
+impl Notice for Banner {
+    // Constructors
+
+    /// Create new `Self`
+    fn notice() -> Self {
+        let banner = Banner::builder().button_label("Ok").revealed(false).build();
+        banner.connect_button_clicked(|this| this.set_revealed(false));
+        banner
+    }
+
+    // Actions
+
+    fn show(&self, title: &str) {
+        self.set_title(title);
+        self.set_revealed(true);
+    }
+}