Fix memory leak

main/data/add_conversation/conference_details_fragment.ui

@@ -250,7 +250,6 @@
                                             <object class="GtkLabel" id="notification_label">
                                                 <property name="visible">True</property>
                                                 <property name="can_focus">False</property>
-                                                <property name="label" translatable="yes">This is an app-notification. Click the button to dismiss</property>
                                             </object>
                                             <packing>
                                                 <property name="expand">False</property>

main/po/dino.pot

@@ -59,10 +59,6 @@ msgstr ""
 msgid "Password"
 msgstr ""
 
-#: ../data/add_conversation/conference_details_fragment.ui:253
-msgid "This is an app-notification. Click the button to dismiss"
-msgstr ""
-
 #: ../data/conversation_selector/view.ui:14
 msgid "Search"
 msgstr ""

main/src/ui/add_conversation/select_jid_fragment.vala

@@ -47,7 +47,7 @@ public class SelectJidFragment : Gtk.Box {
     public void set_filter(string str) {
         if (entry.text != str) entry.text = str;
 
-        foreach (AddListRow row in added_rows) filterable_list.remove(row);
+        foreach (AddListRow row in added_rows) row.destroy();
         added_rows.clear();
 
         string[] ? values = str == "" ? null : str.split(" ");

main/src/ui/conversation_summary/conversation_item_skeleton.vala

@@ -46,7 +46,8 @@ public class ConversationItemSkeleton : Grid {
     }
 
     public void remove_meta_item(Plugins.MetaConversationItem item) {
-        box.remove(item_widgets[item]);
+        item_widgets[item].destroy();
+        item_widgets.unset(item);
         items.remove(item);
     }
 

main/src/ui/conversation_summary/conversation_view.vala

@@ -84,9 +84,10 @@ public class ConversationView : Box, Plugins.ConversationItemCollection {
             if (skeleton.items.size > 1) {
                 skeleton.remove_meta_item(item);
             } else {
-                main.remove(widgets[item]);
+                widgets[item].destroy();
                 widgets.unset(item);
-                item_skeletons.remove(item_item_skeletons[item]);
+                skeleton.destroy();
+                item_skeletons.remove(skeleton);
                 item_item_skeletons.unset(item);
             }
             meta_items.remove(item);
@@ -233,7 +234,8 @@ public class ConversationView : Box, Plugins.ConversationItemCollection {
         meta_after_items.clear();
         item_skeletons.clear();
         item_item_skeletons.clear();
-        main.@foreach((widget) => { main.remove(widget); });
+        widgets.clear();
+        main.@foreach((widget) => { widget.destroy(); });
     }
 }
 

main/src/ui/conversation_summary/message_populator.vala

@@ -55,8 +55,13 @@ public class MessagePopulator : Object {
         if (meta_item == null) return;
 
         meta_item.mark = message.marked;
+        WeakRef weak_meta_item = WeakRef(meta_item);
+        WeakRef weak_message = WeakRef(message);
         message.notify["marked"].connect(() => {
-            meta_item.mark = message.marked;
+            Plugins.MetaConversationItem? mi = weak_meta_item.get() as Plugins.MetaConversationItem;
+            Message? m = weak_message.get() as Message;
+            if (mi == null || m == null) return;
+            mi.mark = m.marked;
         });
         item_collection.insert_item(meta_item);
     }

main/src/ui/conversation_titlebar/occupants_entry.vala

@@ -29,9 +29,9 @@ class OccupantsWidget : MenuButton, Plugins.ConversationTitlebarWidget {
     private Conversation? conversation;
     private StreamInteractor stream_interactor;
     private Window window;
+    private OccupantMenu.View menu = null;
 
     public OccupantsWidget(StreamInteractor stream_interactor, Window window) {
-
         image = new Image.from_icon_name("system-users-symbolic", IconSize.MENU);
 
         this.stream_interactor = stream_interactor;
@@ -44,8 +44,10 @@ class OccupantsWidget : MenuButton, Plugins.ConversationTitlebarWidget {
 
         visible = conversation.type_ == Conversation.Type.GROUPCHAT;
         if (conversation.type_ == Conversation.Type.GROUPCHAT) {
-            OccupantMenu.View menu = new OccupantMenu.View(stream_interactor, window, conversation);
+            OccupantMenu.View new_menu = new OccupantMenu.View(stream_interactor, window, conversation);
-            set_popover(menu);
+            set_popover(new_menu);
+            if (menu != null) menu.destroy();
+            menu = new_menu;
         }
     }
 }

main/src/ui/manage_accounts/dialog.vala

@@ -128,8 +128,7 @@ public class Dialog : Gtk.Dialog {
         ok_button.label = _("Remove");
         ok_button.get_style_context().add_class("destructive-action");
         if (msg.run() == Gtk.ResponseType.OK) {
-            account_list.remove(account_item);
+            account_item.destroy();
-            account_list.queue_draw();
             if (account_item.account.enabled) account_disabled(account_item.account);
             account_item.account.remove();
             if (account_list.get_row_at_index(0) != null) {

main/src/ui/occupant_menu/view.vala

@@ -94,7 +94,7 @@ public class View : Popover {
             kick_button.clicked.connect(kick_button_clicked);
         }
 
-        if (jid_menu != null) stack.remove(jid_menu);
+        if (jid_menu != null) jid_menu.destroy();
         stack.add_named(outer_box, "menu");
         stack.visible_child_name = "menu";
         jid_menu = outer_box;

plugins/omemo/src/account_settings_dialog.vala

@@ -29,7 +29,7 @@ public class AccountSettingsDialog : Gtk.Dialog {
         foreach (Row row in plugin.db.identity_meta.with_address(account.bare_jid.to_string())) {
             if (row[plugin.db.identity_meta.device_id] == own_id) continue;
             if (i == 0) {
-                other_list.foreach((widget) => { other_list.remove(widget); });
+                other_list.foreach((widget) => { widget.destroy(); });
             }
             string? other_b64 = row[plugin.db.identity_meta.identity_key_public_base64];
             Label lbl = new Label(other_b64 != null ? fingerprint_markup(fingerprint_from_base64(other_b64)) : _("Unknown device (0x%xd)").printf(row[plugin.db.identity_meta.device_id])) { use_markup = true, visible = true, margin = 8, selectable=true };