1 files changed, 105 insertions, 0 deletions
diff --git a/main/src/ui/conversation_content_view/date_separator_populator.vala b/main/src/ui/conversation_content_view/date_separator_populator.vala
new file mode 100644
index 00000000..3ddb0d9a
--- /dev/null
+++ b/main/src/ui/conversation_content_view/date_separator_populator.vala
@@ -0,0 +1,105 @@
+using Gee;
+using Gtk;
+
+using Dino.Entities;
+using Xmpp;
+
+namespace Dino.Ui.ConversationSummary {
+
+class DateSeparatorPopulator : Plugins.ConversationItemPopulator, Plugins.ConversationAdditionPopulator, Object {
+
+    public string id { get { return "date_separator"; } }
+
+    private StreamInteractor stream_interactor;
+    private Conversation? current_conversation;
+    private Plugins.ConversationItemCollection? item_collection;
+    private Gee.TreeSet<DateTime> insert_times;
+
+
+    public DateSeparatorPopulator(StreamInteractor stream_interactor) {
+        this.stream_interactor = stream_interactor;
+    }
+
+    public void init(Conversation conversation, Plugins.ConversationItemCollection item_collection, Plugins.WidgetType type) {
+        current_conversation = conversation;
+        this.item_collection = item_collection;
+        item_collection.inserted_item.connect(on_inserted_item);
+        this.insert_times = new TreeSet<DateTime>((a, b) => {
+            return a.compare(b);
+        });
+    }
+
+    public void close(Conversation conversation) {
+        item_collection.inserted_item.disconnect(on_inserted_item);
+    }
+
+    public void populate_timespan(Conversation conversation, DateTime after, DateTime before) { }
+
+    private void on_inserted_item(Plugins.MetaConversationItem item) {
+        if (!(item is ContentMetaItem)) return;
+
+        DateTime time = item.sort_time.to_local();
+        DateTime msg_date = new DateTime.local(time.get_year(), time.get_month(), time.get_day_of_month(), 0, 0, 0);
+        if (!insert_times.contains(msg_date)) {
+            if (insert_times.lower(msg_date) != null) {
+                item_collection.insert_item(new MetaDateItem(msg_date.to_utc()));
+            } else if (insert_times.size > 0) {
+                item_collection.insert_item(new MetaDateItem(insert_times.first().to_utc()));
+            }
+            insert_times.add(msg_date);
+        }
+    }
+}
+
+public class MetaDateItem : Plugins.MetaConversationItem {
+    public override DateTime sort_time { get; set; }
+
+    public override bool can_merge { get; set; default=false; }
+    public override bool requires_avatar { get; set; default=false; }
+    public override bool requires_header { get; set; default=false; }
+
+    private DateTime date;
+
+    public MetaDateItem(DateTime date) {
+        this.date = date;
+        this.sort_time = date;
+    }
+
+    public override Object? get_widget(Plugins.WidgetType widget_type) {
+        Box box = new Box(Orientation.HORIZONTAL, 10) { width_request=300, halign=Align.CENTER, visible=true };
+        box.add(new Separator(Orientation.HORIZONTAL) { valign=Align.CENTER, hexpand=true, visible=true });
+        string date_str = get_relative_time(date);
+        Label label = new Label(@"<span size='small'>$date_str</span>") { use_markup=true, halign=Align.CENTER, hexpand=false, visible=true };
+        label.get_style_context().add_class("dim-label");
+        box.add(label);
+        box.add(new Separator(Orientation.HORIZONTAL) { valign=Align.CENTER, hexpand=true, visible=true });
+        return box;
+    }
+
+    private static string get_relative_time(DateTime time) {
+        DateTime time_local = time.to_local();
+        DateTime now_local = new DateTime.now_local();
+        if (time_local.get_year() == now_local.get_year() &&
+            time_local.get_month() == now_local.get_month() &&
+            time_local.get_day_of_month() == now_local.get_day_of_month()) {
+            return _("Today");
+        }
+        DateTime now_local_minus = now_local.add_days(-1);
+        if (time_local.get_year() == now_local_minus.get_year() &&
+            time_local.get_month() == now_local_minus.get_month() &&
+            time_local.get_day_of_month() == now_local_minus.get_day_of_month()) {
+            return _("Yesterday");
+        }
+        if (time_local.get_year() != now_local.get_year()) {
+            return time_local.format("%x");
+        }
+        TimeSpan timespan = now_local.difference(time_local);
+        if (timespan < 7 * TimeSpan.DAY) {
+            return time_local.format(_("%a, %b %d"));
+        } else {
+            return time_local.format(_("%b %d"));
+        }
+    }
+}
+
+}