Add url preview and open url handler

tg/controllers.py

@@ -70,6 +70,32 @@ class Controller:
         self.tg = tg
         self.chat_size = 0.5
 
+    @bind(msg_handler, ["o"])
+    def open_url(self):
+        msg = self.model.current_msg
+        msg = MsgProxy(msg)
+        if not msg.is_text:
+            self.present_error("Does not contain urls")
+            return
+        text = msg["content"]["text"]["text"]
+        urls = []
+        for entity in msg["content"]["text"]["entities"]:
+            if entity["type"]["@type"] != "textEntityTypeUrl":
+                continue
+            offset = entity["offset"]
+            length = entity["length"]
+            url = text[offset : offset + length]
+            urls.append(url)
+        if not urls:
+            self.present_error("No url to open")
+            return
+        if len(urls) == 1:
+            with suspend(self.view) as s:
+                s.call(f"open -a Firefox '{url}'")
+            return
+        with suspend(self.view) as s:
+            s.run_with_input("urlview", "\n".join(urls))
+
     def format_help(self, bindings):
         return "\n".join(
             f"{key}\t{fun.__name__}\t{fun.__doc__ or ''}"

tg/views.py

@@ -14,7 +14,6 @@ log = logging.getLogger(__name__)
 
 MAX_KEYBINDING_LENGTH = 5
 MULTICHAR_KEYBINDINGS = (
-    "gg",
     "dd",
     "sd",
     "sp",
@@ -304,11 +303,24 @@ class MsgView:
             msg = f"{reply_line}\n{msg}"
         return msg
 
+    def _format_url(self, msg_proxy: MsgProxy):
+        if not msg_proxy.is_text or "web_page" not in msg_proxy.msg["content"]:
+            return ""
+        web = msg_proxy.msg["content"]["web_page"]
+        name = web["site_name"]
+        title = web["title"]
+        description = web["description"].replace("\n", "")
+        url = f"\n | {name}: {title}"
+        if description:
+            url += f"\n | {description}"
+        return url
+
     def _format_msg(
         self, msg_proxy: MsgProxy, user_id_item: int, width_limit: int
     ) -> str:
         msg = self._parse_msg(msg_proxy)
         msg = msg.replace("\n", " ")
+        msg += self._format_url(msg_proxy)
         if reply_to := msg_proxy.reply_msg_id:
             msg = self._format_reply_msg(
                 msg_proxy.chat_id, msg, reply_to, width_limit