built auto save extension for LibreOffice

src/Jobs.xcu

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+<?xml version="1.0" encoding="UTF-8"?>
+<oor:component-data xmlns:oor="http://openoffice.org/2001/registry" xmlns:xs="http://www.w3.org/2001/XMLSchema" oor:name="Jobs" oor:package="org.openoffice.Office">
+  <node oor:name="Jobs">
+    <node oor:name="org.libreoffice.extensions.autosave.AutoSaveJob" oor:op="replace">
+      <prop oor:name="Service">
+        <value>org.libreoffice.extensions.autosave.AutoSaveJob</value>
+      </prop>
+    </node>
+  </node>
+  <node oor:name="Events">
+    <node oor:name="OnLoad" oor:op="fuse">
+      <node oor:name="JobList">
+        <node oor:name="org.libreoffice.extensions.autosave.AutoSaveJob" oor:op="replace"/>
+      </node>
+    </node>
+    <node oor:name="OnNew" oor:op="fuse">
+      <node oor:name="JobList">
+        <node oor:name="org.libreoffice.extensions.autosave.AutoSaveJob" oor:op="replace"/>
+      </node>
+    </node>
+  </node>
+</oor:component-data>

src/META-INF/manifest.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<manifest:manifest xmlns:manifest="http://openoffice.org/2001/manifest">
+  <manifest:file-entry manifest:media-type="application/vnd.sun.star.uno-component;type=Python" manifest:full-path="autosave.py"/>
+  <manifest:file-entry manifest:media-type="application/vnd.sun.star.configuration-data" manifest:full-path="Jobs.xcu"/>
+</manifest:manifest>

src/autosave.py

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+import os
+import shutil
+import traceback
+from threading import Timer
+from datetime import datetime
+import uno
+import unohelper
+from com.sun.star.util import XModifyListener
+from com.sun.star.task import XJob, XJobExecutor
+
+LOG_FILE = "C:\\Users\\jasonross\\workspace\\LibreOfficeAutoSave\\autosave_debug.log"
+
+def log_debug(msg):
+    try:
+        with open(LOG_FILE, "a") as f:
+            f.write(f"[{datetime.now().isoformat()}] {msg}\n")
+    except Exception:
+        pass
+
+log_debug("autosave.py module is being loaded by LibreOffice!")
+
+class AutoSaveListener(unohelper.Base, XModifyListener):
+    def __init__(self, doc, delay_seconds=1.0):
+        self.doc = doc
+        self.delay = delay_seconds
+        self.timer = None
+        log_debug(f"AutoSaveListener initialized for document: {doc}")
+
+    def modified(self, event):
+        if self.timer:
+            self.timer.cancel()
+        
+        self.timer = Timer(self.delay, self.execute_safe_save)
+        self.timer.start()
+
+    def execute_safe_save(self):
+        try:
+            log_debug("Timer expired, attempting save...")
+            if self.doc.supportsService("com.sun.star.document.OfficeDocument"):
+                if self.doc.hasLocation() and not self.doc.isReadonly():
+                    file_url = self.doc.getURL()
+                    log_debug(f"File has location: {file_url}")
+                    
+                    if file_url.startswith("file:///"):
+                        system_path = uno.fileUrlToSystemPath(file_url)
+                        bak_path = os.path.join(os.path.dirname(system_path), f".{os.path.basename(system_path)}.bak")
+                        try:
+                            if os.path.exists(system_path):
+                                shutil.copy2(system_path, bak_path)
+                                log_debug(f"Created backup at {bak_path}")
+                        except Exception as e:
+                            log_debug(f"Backup failed: {e}")
+                    
+                    self.doc.store()
+                    log_debug("Document successfully saved.")
+                else:
+                    log_debug("Document is readonly or has no location (not saved yet).")
+        except Exception as e:
+            log_debug(f"Auto-save exception: {e}\n{traceback.format_exc()}")
+
+    def disposing(self, event):
+        if self.timer:
+            self.timer.cancel()
+        log_debug("Listener disposed.")
+
+g_listeners = {}
+
+class AutoSaveJob(unohelper.Base, XJob, XJobExecutor):
+    def __init__(self, ctx=None):
+        self.ctx = ctx
+        log_debug("AutoSaveJob instantiated!")
+
+    def execute(self, arguments):
+        log_debug(f"AutoSaveJob execute() called with args: {arguments}")
+        self._attach_listener()
+        return ()
+
+    def trigger(self, args):
+        log_debug(f"AutoSaveJob trigger() called with args: {args}")
+        self._attach_listener()
+
+    def _attach_listener(self):
+        try:
+            ctx = uno.getComponentContext()
+            smgr = ctx.ServiceManager
+            desktop = smgr.createInstanceWithContext("com.sun.star.frame.Desktop", ctx)
+            doc = desktop.getCurrentComponent()
+            
+            if doc:
+                if doc in g_listeners:
+                    log_debug("Listener already attached to this document.")
+                    return
+                listener = AutoSaveListener(doc, delay_seconds=1.0)
+                doc.addModifyListener(listener)
+                g_listeners[doc] = listener
+                log_debug("Successfully attached listener to current document.")
+            else:
+                log_debug("No active document found.")
+        except Exception as e:
+            log_debug(f"Error in AutoSaveJob attach: {e}\n{traceback.format_exc()}")
+
+g_ImplementationHelper = unohelper.ImplementationHelper()
+g_ImplementationHelper.addImplementation(
+    AutoSaveJob,
+    "org.libreoffice.extensions.autosave.AutoSaveJob",
+    ("com.sun.star.task.Job",),
+)

src/description.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<description xmlns="http://openoffice.org/extensions/description/2006" xmlns:d="http://openoffice.org/extensions/description/2006" xmlns:xlink="http://www.w3.org/1999/xlink">
+  <identifier value="org.libreoffice.extensions.autosave"/>
+  <version value="1.0.0"/>
+  <display-name>
+    <name lang="en-US">AutoSave</name>
+  </display-name>
+</description>