Visually highlight mentions in MUCs

fixes #267

libdino/src/entity/conversation.vala

@@ -16,7 +16,7 @@ public class Conversation : Object {
     public Type type_ { get; set; }
     public Account account { get; private set; }
     public Jid counterpart { get; private set; }
-    public string? nickname { get; private set; }
+    public string? nickname { get; set; }
     public bool active { get; set; default = false; }
     private DateTime? _last_active;
     public DateTime? last_active {
@@ -84,6 +84,9 @@ public class Conversation : Object {
         if (read_up_to != null) {
             insert.value(db.conversation.read_up_to, read_up_to.id);
         }
+        if (nickname != null) {
+            insert.value(db.conversation.resource, nickname);
+        }
         if (counterpart.is_full()) {
             insert.value(db.conversation.resource, counterpart.resourcepart);
         }
@@ -145,6 +148,8 @@ public class Conversation : Object {
                     update.set_null(db.conversation.read_up_to);
                 }
                 break;
+            case "nickname":
+                update.set(db.conversation.resource, nickname); break;
             case "active":
                 update.set(db.conversation.active, active); break;
             case "last-active":

libdino/src/service/conversation_manager.vala

@@ -26,7 +26,6 @@ public class ConversationManager : StreamInteractionModule, Object {
         this.stream_interactor = stream_interactor;
         stream_interactor.add_module(this);
         stream_interactor.account_added.connect(on_account_added);
-        stream_interactor.get_module(MucManager.IDENTITY).joined.connect(on_groupchat_joined);
         stream_interactor.get_module(MessageProcessor.IDENTITY).received_pipeline.connect(new MessageListener(stream_interactor));
         stream_interactor.get_module(MessageProcessor.IDENTITY).message_sent.connect(handle_new_message);
     }
@@ -155,11 +154,6 @@ public class ConversationManager : StreamInteractionModule, Object {
         start_conversation(conversation);
     }
 
-    private void on_groupchat_joined(Account account, Jid jid, string nick) {
-        Conversation conversation = create_conversation(jid, account, Conversation.Type.GROUPCHAT);
-        start_conversation(conversation);
-    }
-
     private void add_conversation(Conversation conversation) {
         conversations[conversation.account][conversation.counterpart] = conversation;
         if (conversation.active) {

libdino/src/service/muc_manager.vala

@@ -208,10 +208,7 @@ public class MucManager : StreamInteractionModule, Object {
 
     private void on_account_added(Account account) {
         stream_interactor.module_manager.get_module(account, Xep.Muc.Module.IDENTITY).room_entered.connect( (stream, jid, nick) => {
-            enter_errors.unset(jid);
+            on_room_entred(account, stream, jid, nick);
-            set_autojoin(stream, jid, nick, null); // TODO password
-            joined(account, jid, nick);
-            stream_interactor.get_module(MessageProcessor.IDENTITY).send_unsent_messages(account, jid);
         });
         stream_interactor.module_manager.get_module(account, Xep.Muc.Module.IDENTITY).room_enter_error.connect( (stream, jid, error) => {
             enter_errors[jid] = error;
@@ -243,6 +240,16 @@ public class MucManager : StreamInteractionModule, Object {
         });
     }
 
+    private void on_room_entred(Account account, XmppStream stream, Jid jid, string nick) {
+        enter_errors.unset(jid);
+        set_autojoin(stream, jid, nick, null); // TODO password
+        joined(account, jid, nick);
+        stream_interactor.get_module(MessageProcessor.IDENTITY).send_unsent_messages(account, jid);
+        Conversation conversation = stream_interactor.get_module(ConversationManager.IDENTITY).create_conversation(jid, account, Conversation.Type.GROUPCHAT);
+        stream_interactor.get_module(ConversationManager.IDENTITY).start_conversation(conversation);
+        conversation.nickname = nick;
+    }
+
     private void join_all_active(Account account) {
         Gee.List<Conversation> conversations = stream_interactor.get_module(ConversationManager.IDENTITY).get_active_conversations(account);
         foreach (Conversation conversation in conversations) {

main/src/ui/conversation_summary/default_message_display.vala

@@ -48,6 +48,9 @@ public class MetaMessageItem : Plugins.MetaConversationItem {
     public override Object? get_widget(Plugins.WidgetType widget_type) {
         MessageTextView text_view = new MessageTextView() { visible = true };
         text_view.add_text(message.body);
+        if (conversation.type_ == Conversation.Type.GROUPCHAT)  {
+            text_view.highlight_word(conversation.nickname);
+        }
         return text_view;
     }
 }

main/src/ui/conversation_summary/message_textview.vala

@@ -8,11 +8,13 @@ namespace Dino.Ui.ConversationSummary {
 public class MessageTextView : TextView {
 
     private TextTag link_tag;
+    private TextTag bold_tag;
 
     public MessageTextView() {
         Object(editable:false, hexpand:true, wrap_mode:WrapMode.WORD_CHAR);
 
         link_tag = buffer.create_tag("url", underline: Pango.Underline.SINGLE, foreground: "blue");
+        bold_tag = buffer.create_tag("semibold", weight: Pango.Weight.SEMIBOLD);
         button_release_event.connect((event_button) => {
             if (event_button.button == 1) {
                 open_url(event_button);
@@ -44,6 +46,24 @@ public class MessageTextView : TextView {
         format_suffix_urls(text);
     }
 
+    public void highlight_word(string word) {
+        Regex word_regex = new Regex("""\b""" + Regex.escape_string(word) + """\b""");
+        MatchInfo match_info;
+        word_regex.match(buffer.text, 0, out match_info);
+        for (; match_info.matches(); match_info.next()) {
+            int start;
+            int end;
+            match_info.fetch_pos(0, out start, out end);
+            start = buffer.text[0:start].char_count();
+            end = buffer.text[0:end].char_count();
+            TextIter start_iter;
+            TextIter end_iter;
+            buffer.get_iter_at_offset(out start_iter, start);
+            buffer.get_iter_at_offset(out end_iter, end);
+            buffer.apply_tag_by_name("semibold", start_iter, end_iter);
+        }
+    }
+
     private void update_display_style() {
         LinkButton lnk = new LinkButton("http://example.com");
         RGBA link_color = lnk.get_style_context().get_color(StateFlags.LINK);

main/src/ui/conversation_summary/slashme_message_display.vala

@@ -53,6 +53,9 @@ public class MetaSlashmeItem : Plugins.MetaConversationItem {
 
     public override Object? get_widget(Plugins.WidgetType widget_type) {
         text_view = new MessageTextView() { valign=Align.CENTER, vexpand=true, visible = true };
+        if (conversation.type_ == Conversation.Type.GROUPCHAT)  {
+            text_view.highlight_word(conversation.nickname);
+        }
 
         string display_name = Util.get_message_display_name(stream_interactor, message, conversation.account);
         string color = Util.get_name_hex_color(stream_interactor, conversation.account, conversation.counterpart, Util.is_dark_theme(text_view));