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gtk: implement get_attachment_fd and texture/attachment cache, viewport loading

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This commit is contained in:
James Magahern
2026-02-21 23:28:21 -08:00
parent f0ec6b8cb4
commit 7cf2724a75
5 changed files with 145 additions and 84 deletions
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79
gtk/src/transcript/message-list-model.vala
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@@ -62,44 +62,65 @@ public class MessageListModel : Object, ListModel
}
}
public void load_messages() {
public void load_messages(bool force_full_reload = false) {
var previous_messages = new HashSet<Message>();
previous_messages.add_all(_messages);
try {
bool first_load = _messages.size == 0;
string last_message_id = (first_load || force_full_reload) ? "" : _messages.get(_messages.size - 1).guid;
Message[] messages = Repository.get_instance().get_messages(conversation.guid);
// Clear existing set
uint old_count = _messages.size;
_messages.clear();
participants.clear();
// Notify of removal
if (old_count > 0) {
items_changed(0, old_count, 0);
Message[] messages = Repository.get_instance().get_messages(conversation.guid, last_message_id);
bool fallback_full_reload = first_load || force_full_reload;
if (!first_load && messages.length > 0 && previous_messages.contains(messages[0])) {
fallback_full_reload = true;
}
// Process each conversation
uint position = 0;
for (int i = 0; i < messages.length; i++) {
var message = messages[i];
participants.add(message.sender);
if (!first_load && !previous_messages.contains(message)) {
// This is a new message according to the UI, schedule an animation for it.
message.should_animate = true;
if (fallback_full_reload) {
uint old_count = _messages.size;
_messages.clear();
participants.clear();
if (old_count > 0) {
items_changed(0, old_count, 0);
}
_messages.add(message);
position++;
}
// Notify of additions
if (position > 0) {
items_changed(0, 0, position);
uint position = 0;
for (int i = 0; i < messages.length; i++) {
var message = messages[i];
participants.add(message.sender);
if (!first_load && !previous_messages.contains(message)) {
message.should_animate = true;
}
_messages.add(message);
position++;
}
if (position > 0) {
items_changed(0, 0, position);
}
} else {
uint old_count = _messages.size;
uint appended = 0;
for (int i = 0; i < messages.length; i++) {
var message = messages[i];
if (previous_messages.contains(message)) {
continue;
}
participants.add(message.sender);
message.should_animate = true;
_messages.add(message);
appended++;
}
if (appended > 0) {
items_changed(old_count, 0, appended);
}
}
} catch (Error e) {
warning("Failed to load messages: %s", e.message);
@@ -134,4 +155,4 @@ public class MessageListModel : Object, ListModel
public Object? get_item(uint position) {
return _messages.get((int)position);
}
}
}