move regex logic, add annotation tag, add some tests

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

@@ -1,5 +1,10 @@
 use gtk::glib::{Uri, UriFlags};
 
+pub const REGEX_LINK: &str = r"\[(?P<text>[^\]]+)\]\((?P<url>[^\)]+)\)";
+
+pub const REGEX_IMAGE_LINK: &str =
+    r"\[(?P<is_img>!)\[(?P<alt>[^\]]+)\]\((?P<img_url>[^\)]+)\)\]\((?P<link_url>[^\)]+)\)";
+
 pub struct Reference {
     pub uri: Uri,
     pub alt: String,
@@ -53,22 +58,74 @@ impl Reference {
     pub fn into_buffer(
         self,
         buffer: &gtk::TextBuffer,
+        position: &mut gtk::TextIter,
         link_color: &gtk::gdk::RGBA,
         tag: &super::Tag,
+        is_annotation: bool,
         links: &mut std::collections::HashMap<gtk::TextTag, Uri>,
     ) {
-        use gtk::prelude::{TextBufferExt, TextBufferExtManual};
-        let a = gtk::TextTag::builder()
-            .foreground_rgba(link_color)
-            // .foreground_rgba(&adw::StyleManager::default().accent_color_rgba())
-            // @TODO adw 1.6 / ubuntu 24.10+
-            .sentence(true)
-            .wrap_mode(gtk::WrapMode::Word)
-            .build();
+        use gtk::{TextTag, WrapMode, prelude::TextBufferExtManual};
+        let a = if is_annotation {
+            buffer.insert_with_tags(position, " ", &[]);
+            TextTag::builder()
+                .foreground_rgba(link_color)
+                // .foreground_rgba(&adw::StyleManager::default().accent_color_rgba())
+                // @TODO adw 1.6 / ubuntu 24.10+
+                .pixels_above_lines(4)
+                .pixels_below_lines(4)
+                .rise(5000)
+                .scale(0.8)
+                .wrap_mode(WrapMode::Word)
+                .build()
+        } else {
+            TextTag::builder()
+                .foreground_rgba(link_color)
+                // .foreground_rgba(&adw::StyleManager::default().accent_color_rgba())
+                // @TODO adw 1.6 / ubuntu 24.10+
+                .sentence(true)
+                .wrap_mode(WrapMode::Word)
+                .build()
+        };
         if !tag.text_tag_table.add(&a) {
             panic!()
         }
-        buffer.insert_with_tags(&mut buffer.end_iter(), &self.alt, &[&a]);
+        buffer.insert_with_tags(position, &self.alt, &[&a]);
         links.insert(a, self.uri);
     }
 }
+
+#[test]
+fn test_regex_link() {
+    let cap: Vec<_> = regex::Regex::new(REGEX_LINK)
+        .unwrap()
+        .captures_iter(r#"[link1](https://link1.com) [link2](https://link2.com)"#)
+        .collect();
+
+    let first = cap.get(0).unwrap();
+    assert_eq!(&first["text"], "link1");
+    assert_eq!(&first["url"], "https://link1.com");
+
+    let second = cap.get(1).unwrap();
+    assert_eq!(&second["text"], "link2");
+    assert_eq!(&second["url"], "https://link2.com");
+}
+
+#[test]
+fn test_regex_image_link() {
+    let cap: Vec<_> = regex::Regex::new(
+        REGEX_IMAGE_LINK,
+    )
+    .unwrap().captures_iter(
+        r#"[![image1](https://image1.com)](https://image2.com) [![image3](https://image3.com)](https://image4.com)"#
+    ).collect();
+
+    let first = cap.get(0).unwrap();
+    assert_eq!(&first["alt"], "image1");
+    assert_eq!(&first["img_url"], "https://image1.com");
+    assert_eq!(&first["link_url"], "https://image2.com");
+
+    let second = cap.get(1).unwrap();
+    assert_eq!(&second["alt"], "image3");
+    assert_eq!(&second["img_url"], "https://image3.com");
+    assert_eq!(&second["link_url"], "https://image4.com");
+}