src/main/java/de/thedevstack/conversationsplus/ui/listeners/DeleteFileCallback.java


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44

package de.thedevstack.conversationsplus.ui.listeners;

import de.thedevstack.conversationsplus.entities.Message;
import de.thedevstack.conversationsplus.entities.Transferable;
import de.thedevstack.conversationsplus.entities.TransferablePlaceholder;
import de.thedevstack.conversationsplus.persistance.FileBackend;
import de.thedevstack.conversationsplus.utils.UiUpdateHelper;

/**
 * Callback for the user decision if a file should be deleted or not.
 */
public class DeleteFileCallback implements SimpleUserDecisionCallback {
    private final Message message;

    public DeleteFileCallback(Message message) {
        this.message = message;
    }

    /**
     * Deletes the file and updates the UI.
     */
    private void deleteFile() {
        if (FileBackend.deleteFile(this.message)) {
            this.message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
            UiUpdateHelper.updateConversationUi();
        }
    }

    /**
     * Deletes the file.
     */
    @Override
    public void onYes() {
        this.deleteFile();
    }

    /**
     * Nothing to do in this case.
     */
    @Override
    public void onNo() {
        // Nothing to do
    }
}