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envoy
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Added deepRefresh - mechanism 

additionally fixed bug not updating messageList when a
MessageStatusChange occurs (seriously, why did no one notice it before?)
This commit is contained in:
delvh 2020-07-16 17:35:15 +02:00
parent abd0113588
commit bc355f190f
2 changed files with 43 additions and 8 deletions
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36
client/src/main/java/envoy/client/ui/ListViewRefresh.java Normal file
View File

@ -0,0 +1,36 @@
package envoy.client.ui;
import javafx.scene.control.ListCell;
import javafx.scene.control.ListView;
/**
* This is a utility class that provides access to a refreshing mechanism for
* elements that were added without notifying the underlying {@link ListView}.
* <p>
* Project: <strong>envoy-client</strong><br>
* File: <strong>ListViewRefresh.java</strong><br>
* Created: <strong>16.07.2020</strong><br>
*
* @author Leon Hofmeister
* @since Envoy Client v0.1-beta
*/
public class ListViewRefresh {
private ListViewRefresh() {}
/**
* Deeply refreshes a {@code listview}, meaning it recomputes every single of
* its {@link ListCell}s.
* <p>
* While it does work, it is <b>not the most efficient algorithm</b> possible.
*
* @param toRefresh the listView to refresh
* @param <T> the type of its {@code listcells}
* @since Envoy Client v0.1-beta
*/
public static <T> void deepRefresh(ListView<T> toRefresh) {
final var items = toRefresh.getItems();
toRefresh.setItems(null);
toRefresh.setItems(items);
}
}

15
client/src/main/java/envoy/client/ui/controller/ChatScene.java
View File

@ -31,9 +31,7 @@ import envoy.client.data.audio.AudioRecorder;
import envoy.client.event.MessageCreationEvent;
import envoy.client.net.Client;
import envoy.client.net.WriteProxy;
import envoy.client.ui.IconUtil;
import envoy.client.ui.Restorable;
import envoy.client.ui.SceneContext;
import envoy.client.ui.*;
import envoy.client.ui.listcell.ChatControl;
import envoy.client.ui.listcell.ListCellFactory;
import envoy.client.ui.listcell.MessageControl;
@ -144,7 +142,7 @@ public final class ChatScene implements Restorable {
} catch (final IOException e1) {
logger.log(Level.WARNING, "Could not read current chat: ", e1);
}
Platform.runLater(() -> { messageList.refresh(); scrollToMessageListEnd(); });
Platform.runLater(() -> { ListViewRefresh.deepRefresh(messageList); scrollToMessageListEnd(); });
} else chat.incrementUnreadAmount();
// Moving chat with most recent unreadMessages to the top
Platform.runLater(() -> {
@ -158,8 +156,9 @@ public final class ChatScene implements Restorable {
// Listen to message status changes
eventBus.register(MessageStatusChange.class, e -> localDB.getMessage(e.getID()).ifPresent(message -> {
message.setStatus(e.get());
// Update UI if in current chat
if (currentChat != null && message.getSenderID() == currentChat.getRecipient().getID()) Platform.runLater(messageList::refresh);
// Update UI if in current chat and the current user was the sender of the
// message
if (currentChat != null && message.getSenderID() == client.getSender().getID()) Platform.runLater(messageList::refresh);
}));
eventBus.register(GroupMessageStatusChange.class, e -> localDB.getMessage(e.getID()).ifPresent(groupMessage -> {
@ -184,7 +183,7 @@ public final class ChatScene implements Restorable {
switch (e.getOperationType()) {
case ADD:
localDB.getUsers().put(contact.getName(), contact);
Chat chat = contact instanceof User ? new Chat(contact) : new GroupChat(client.getSender(), contact);
final Chat chat = contact instanceof User ? new Chat(contact) : new GroupChat(client.getSender(), contact);
Platform.runLater(() -> chatList.getItems().add(chat));
break;
case REMOVE:
@ -499,7 +498,7 @@ public final class ChatScene implements Restorable {
localDB.getChats().remove(currentChat);
localDB.getChats().add(0, currentChat);
});
messageList.refresh();
ListViewRefresh.deepRefresh(messageList);
scrollToMessageListEnd();
// Request a new ID generator if all IDs were used