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@@ -200,6 +200,11 @@ func (m *Model) onTypingStart(event *gateway.TypingStartEvent) {
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m.addTyper(event.UserID)
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}
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+// onMessageReactionAdd handles the gateway event for a new reaction on a message.
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+// Unlike other event handlers that use setMessage/deleteMessage, this handler mutates
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+// msg.Reactions in-place via a pointer into the messages slice, then manually invalidates
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+// the itemByID cache entry and calls invalidateRows() to trigger a re-render.
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+// This avoids a full message replacement for a small incremental change.
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func (m *Model) onMessageReactionAdd(event *gateway.MessageReactionAddEvent) {
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selected := m.SelectedChannel()
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if selected == nil || selected.ID != event.ChannelID {
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@@ -239,6 +244,10 @@ func (m *Model) onMessageReactionAdd(event *gateway.MessageReactionAddEvent) {
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m.messagesList.invalidateRows()
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}
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+// onMessageReactionRemove handles the gateway event for a removed reaction.
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+// Like onMessageReactionAdd, it mutates msg.Reactions in-place via a pointer into
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+// the messages slice and manually invalidates the itemByID cache + calls invalidateRows(),
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+// rather than using the setMessage path used by other event handlers.
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func (m *Model) onMessageReactionRemove(event *gateway.MessageReactionRemoveEvent) {
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selected := m.SelectedChannel()
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if selected == nil || selected.ID != event.ChannelID {
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