Fix cyclic references => let objects be freed

3 files changed, 36 insertions, 14 deletions

diff --git a/main/src/ui/conversation_content_view/content_populator.vala b/main/src/ui/conversation_content_view/content_populator.vala
index 2a0f8ac1..48a9e12a 100644
--- a/main/src/ui/conversation_content_view/content_populator.vala
+++ b/main/src/ui/conversation_content_view/content_populator.vala
@@ -86,12 +86,7 @@ public abstract class ContentMetaItem : Plugins.MetaConversationItem {
         this.encryption = content_item.encryption;
         this.mark = content_item.mark;
 
-        WeakRef weak_item = WeakRef(content_item);
-        content_item.notify["mark"].connect(() => {
-            ContentItem? ci = weak_item.get() as ContentItem;
-            if (ci == null) return;
-            this.mark = ci.mark;
-        });
+        content_item.bind_property("mark", this, "mark");
 
         this.can_merge = true;
         this.requires_avatar = true;
diff --git a/main/src/ui/conversation_content_view/conversation_item_skeleton.vala b/main/src/ui/conversation_content_view/conversation_item_skeleton.vala
index b589fe9e..d126f72e 100644
--- a/main/src/ui/conversation_content_view/conversation_item_skeleton.vala
+++ b/main/src/ui/conversation_content_view/conversation_item_skeleton.vala
@@ -15,6 +15,7 @@ public class ConversationItemSkeleton : EventBox {
     public StreamInteractor stream_interactor;
     public Conversation conversation { get; set; }
     public Plugins.MetaConversationItem item;
+    public bool item_in_edit_mode { get; set; }
     public ContentMetaItem? content_meta_item = null;
     public Widget? widget = null;
 
@@ -30,7 +31,8 @@ public class ConversationItemSkeleton : EventBox {
         this.content_meta_item = item as ContentMetaItem;
         this.get_style_context().add_class("message-box");
 
-        item.notify["in-edit-mode"].connect(() => {
+        item.bind_property("in-edit-mode", this, "item-in-edit-mode");
+        this.notify["item-in-edit-mode"].connect(() => {
             if (item.in_edit_mode) {
                 this.get_style_context().add_class("edit-mode");
             } else {
@@ -112,7 +114,9 @@ public class ItemMetaDataHeader : Box {
     private StreamInteractor stream_interactor;
     private Conversation conversation;
     private Plugins.MetaConversationItem item;
+    public Entities.Message.Marked item_mark { get; set; }
     private ArrayList<Plugins.MetaConversationItem> items = new ArrayList<Plugins.MetaConversationItem>();
+    private uint time_update_timeout = 0;
 
     public ItemMetaDataHeader(StreamInteractor stream_interactor, Conversation conversation, Plugins.MetaConversationItem item) {
         this.stream_interactor = stream_interactor;
@@ -151,7 +155,8 @@ public class ItemMetaDataHeader : Box {
             update_time();
         }
 
-        item.notify["mark"].connect_after(update_received_mark);
+        item.bind_property("mark", this, "item-mark");
+        this.notify["item-mark"].connect_after(update_received_mark);
         update_received_mark();
     }
 
@@ -172,7 +177,7 @@ public class ItemMetaDataHeader : Box {
     private void update_time() {
         time_label.label = get_relative_time(item.display_time.to_local()).to_string();
 
-        Timeout.add_seconds((int) get_next_time_change(), () => {
+        time_update_timeout = Timeout.add_seconds((int) get_next_time_change(), () => {
             if (this.parent == null) return false;
             update_time();
             return false;
@@ -276,6 +281,15 @@ public class ItemMetaDataHeader : Box {
             return _("Just now");
         }
     }
+
+    public override void dispose() {
+        base.dispose();
+
+        if (time_update_timeout != 0) {
+            Source.remove(time_update_timeout);
+            time_update_timeout = 0;
+        }
+    }
 }
 
 }
diff --git a/main/src/ui/conversation_content_view/file_widget.vala b/main/src/ui/conversation_content_view/file_widget.vala
index 3819e5bc..a965db47 100644
--- a/main/src/ui/conversation_content_view/file_widget.vala
+++ b/main/src/ui/conversation_content_view/file_widget.vala
@@ -37,6 +37,8 @@ public class FileWidget : SizeRequestBox {
 
     private StreamInteractor stream_interactor;
     private FileTransfer file_transfer;
+    public FileTransfer.State file_transfer_state { get; set; }
+    public string file_transfer_mime_type { get; set; }
     private State? state = null;
 
     private FileDefaultWidgetController default_widget_controller;
@@ -58,8 +60,11 @@ public class FileWidget : SizeRequestBox {
             }
         });
 
-        file_transfer.notify["state"].connect(update_widget);
-        file_transfer.notify["mime-type"].connect(update_widget);
+        file_transfer.bind_property("state", this, "file-transfer-state");
+        file_transfer.bind_property("mime-type", this, "file-transfer-mime-type");
+
+        this.notify["file-transfer-state"].connect(update_widget);
+        this.notify["file-transfer-mime-type"].connect(update_widget);
     }
 
     private async void update_widget() {
@@ -115,6 +120,10 @@ public class FileDefaultWidgetController : Object {
 
     private FileDefaultWidget widget;
     private FileTransfer? file_transfer;
+    public string file_transfer_path { get; set; }
+    public string file_transfer_state { get; set; }
+    public string file_transfer_mime_type { get; set; }
+
     private StreamInteractor? stream_interactor;
     private string file_uri;
     private FileTransfer.State state;
@@ -130,9 +139,13 @@ public class FileDefaultWidgetController : Object {
 
         widget.name_label.label = file_transfer.file_name;
 
-        file_transfer.notify["path"].connect(update_file_info);
-        file_transfer.notify["state"].connect(update_file_info);
-        file_transfer.notify["mime-type"].connect(update_file_info);
+        file_transfer.bind_property("path", this, "file-transfer-path");
+        file_transfer.bind_property("state", this, "file-transfer-state");
+        file_transfer.bind_property("mime-type", this, "file-transfer-mime-type");
+
+        this.notify["file-transfer-path"].connect(update_file_info);
+        this.notify["file-transfer-state"].connect(update_file_info);
+        this.notify["file-transfer-mime-type"].connect(update_file_info);
 
         update_file_info();
     }