From b789ace386ef3cfe6e0c3834b2a425813f702f43 Mon Sep 17 00:00:00 2001
From: steckbrief <steckbrief@chefmail.de>
Date: Sat, 23 Apr 2016 22:50:54 +0200
Subject: Fixes FS#204: Observe all used directories - Implementing the
 FileObserver in a separate class, with mask to watch only deletions not
 everything - Add observation of all directories which could contain a
 sent/received file - Change observers if the folder names are changed via
 settings - markMessage method moved from XmppConnectionService to MessageUtil

---
 .../observers/FileDeletionObserver.java            | 45 ++++++++++++++++++++++
 1 file changed, 45 insertions(+)
 create mode 100644 src/main/java/de/thedevstack/conversationsplus/persistance/observers/FileDeletionObserver.java

(limited to 'src/main/java/de/thedevstack/conversationsplus/persistance/observers/FileDeletionObserver.java')

diff --git a/src/main/java/de/thedevstack/conversationsplus/persistance/observers/FileDeletionObserver.java b/src/main/java/de/thedevstack/conversationsplus/persistance/observers/FileDeletionObserver.java
new file mode 100644
index 00000000..3534ccd2
--- /dev/null
+++ b/src/main/java/de/thedevstack/conversationsplus/persistance/observers/FileDeletionObserver.java
@@ -0,0 +1,45 @@
+package de.thedevstack.conversationsplus.persistance.observers;
+
+import android.os.FileObserver;
+
+import de.thedevstack.conversationsplus.entities.Conversation;
+import de.thedevstack.conversationsplus.entities.Message;
+import de.thedevstack.conversationsplus.entities.Transferable;
+import de.thedevstack.conversationsplus.entities.TransferablePlaceholder;
+import de.thedevstack.conversationsplus.utils.MessageUtil;
+import de.thedevstack.conversationsplus.utils.UiUpdateHelper;
+import de.thedevstack.conversationsplus.utils.XmppConnectionServiceAccessor;
+
+/**
+ * Observer to mark messages containing files which are deleted.
+ */
+public class FileDeletionObserver extends FileObserver {
+    public FileDeletionObserver(String path) {
+        super(path, FileObserver.DELETE);
+    }
+
+    @Override
+    public void onEvent(int event, String path) {
+        if (null != path) {
+            markFileDeleted(path.split("\\.")[0]);
+        }
+    }
+
+    private void markFileDeleted(String uuid) {
+        if (null != XmppConnectionServiceAccessor.xmppConnectionService) {
+            for (Conversation conversation : XmppConnectionServiceAccessor.xmppConnectionService.getConversations()) {
+                Message message = conversation.findMessageWithFileAndUuid(uuid);
+                if (message != null) {
+                    message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
+                    final int s = message.getStatus();
+                    if (s == Message.STATUS_WAITING || s == Message.STATUS_OFFERED || s == Message.STATUS_UNSEND) {
+                        MessageUtil.markMessage(message, Message.STATUS_SEND_FAILED);
+                    } else {
+                        UiUpdateHelper.updateConversationUi();
+                    }
+                    return;
+                }
+            }
+        }
+    }
+}
-- 
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