[Libreoffice-commits] .: svtools/inc svtools/source
Thorsten Behrens
thorsten at kemper.freedesktop.org
Fri Dec 3 07:37:42 PST 2010
svtools/inc/svtools/filechangedchecker.hxx | 53 +++++++++++++
svtools/source/misc/filechangedchecker.cxx | 115 +++++++++++++++++++++++++++++
svtools/source/misc/makefile.mk | 1
3 files changed, 169 insertions(+)
New commits:
commit 3cedb3ee719afa2443507f3797f45e18db091c35
Author: Surendran Mahendran <surenspost at gmail.com>
Date: Fri Dec 3 16:17:02 2010 +0100
First cuts for edit with external tool method
Moves FileChangedChecker to svtools, for reuse in other applications
diff --git a/svtools/inc/svtools/filechangedchecker.hxx b/svtools/inc/svtools/filechangedchecker.hxx
new file mode 100644
index 0000000..0806b70
--- /dev/null
+++ b/svtools/inc/svtools/filechangedchecker.hxx
@@ -0,0 +1,53 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * Version: MPL 1.1 / GPLv3+ / LGPLv3+
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Initial Developer of the Original Code is
+ * [ Surendran Mahendran <surenspost at gmail.com>]
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 3 or later (the "GPLv3+"), or
+ * the GNU Lesser General Public License Version 3 or later (the "LGPLv3+"),
+ * in which case the provisions of the GPLv3+ or the LGPLv3+ are applicable
+ * instead of those above.
+ */
+#ifndef SVTOOLS_INCLUDED_FILECHANGEDCHECKER_HXX
+#define SVTOOLS_INCLUDED_FILECHANGEDCHECKER_HXX
+
+#include <boost/function.hpp>
+#include <osl/file.hxx>
+#include <vcl/timer.hxx>
+
+/** Periodically checks if a file has been modified
+
+ Instances of this class setup a vcl timer to occasionally wake up
+ check whether file modification time has changed.
+ */
+class FileChangedChecker
+{
+private :
+ Timer mTimer;
+ rtl::OUString mFileName;
+ TimeValue mLastModTime;
+ ::boost::function0<void> mpCallback;
+
+ bool getCurrentModTime(TimeValue& o_rValue) const;
+
+public :
+ DECL_LINK(TimerHandler, Timer *);
+ void resetTimer();
+ bool hasFileChanged();
+ FileChangedChecker(const rtl::OUString& rFilename, const ::boost::function0<void>& rCallback);
+};
+
+#endif
diff --git a/svtools/source/misc/filechangedchecker.cxx b/svtools/source/misc/filechangedchecker.cxx
new file mode 100644
index 0000000..abd0f34
--- /dev/null
+++ b/svtools/source/misc/filechangedchecker.cxx
@@ -0,0 +1,115 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * Version: MPL 1.1 / GPLv3+ / LGPLv3+
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Initial Developer of the Original Code is
+ * [ Surendran Mahendran <surenspost at gmail.com>]
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 3 or later (the "GPLv3+"), or
+ * the GNU Lesser General Public License Version 3 or later (the "LGPLv3+"),
+ * in which case the provisions of the GPLv3+ or the LGPLv3+ are applicable
+ * instead of those above.
+ */
+
+// MARKER(update_precomp.py): autogen include statement, do not remove
+#include "precompiled_svtools.hxx"
+
+#include "svtools/filechangedchecker.hxx"
+#include <osl/time.h>
+#include "com/sun/star/system/XSystemShellExecute.hpp"
+#include "com/sun/star/system/SystemShellExecuteFlags.hpp"
+#include <comphelper/processfactory.hxx>
+
+using namespace ::com::sun::star;
+
+FileChangedChecker::FileChangedChecker(const rtl::OUString& rFilename, const ::boost::function0<void>& rCallback) :
+ mTimer(),
+ mFileName(rFilename),
+ mLastModTime(),
+ mpCallback(rCallback)
+{
+ // Get the curren last file modified Status
+ getCurrentModTime(mLastModTime);
+
+ // associate the callback function for the timer
+ mTimer.SetTimeoutHdl(LINK(this, FileChangedChecker, TimerHandler));
+
+ //start the timer
+ resetTimer();
+}
+
+void FileChangedChecker::resetTimer()
+{
+ //Start the timer if its not active
+ if(!mTimer.IsActive())
+ mTimer.Start();
+
+ // Set a timeout of 3 seconds
+ mTimer.SetTimeout(3000);
+}
+
+bool FileChangedChecker::getCurrentModTime(TimeValue& o_rValue) const
+{
+ // Need a Directory item to fetch file status
+ osl::DirectoryItem aItem;
+ osl::DirectoryItem::get(mFileName, aItem);
+
+ // Retrieve the status - we are only interested in last File
+ // Modified time
+ osl::FileStatus aStatus( FileStatusMask_ModifyTime );
+ if( osl::FileBase::E_None != aItem.getFileStatus(aStatus) )
+ return false;
+
+ o_rValue = aStatus.getModifyTime();
+ return true;
+}
+
+bool FileChangedChecker::hasFileChanged()
+{
+ // Get the current file Status
+ TimeValue newTime={0,0};
+ if( !getCurrentModTime(newTime) )
+ return true; // well. hard to answer correctly here ...
+
+ // Check if the seconds time stamp has any difference
+ // If so, then our file has changed meanwhile
+ if( newTime.Seconds != mLastModTime.Seconds ||
+ newTime.Seconds != mLastModTime.Seconds )
+ {
+ // Since the file has changed, set the new status as the file status and
+ // return True
+ mLastModTime = newTime ;
+
+ return true;
+ }
+ else
+ return false;
+}
+
+IMPL_LINK(FileChangedChecker, TimerHandler, Timer *, EMPTYARG)
+{
+ // If the file has changed, then update the graphic in the doc
+ OSL_TRACE("Timeout Called \n");
+ if(hasFileChanged())
+ {
+ OSL_TRACE("File modified \n");
+ mpCallback();
+ }
+
+ // Reset the timer in any case
+ resetTimer();
+ return 0;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/svtools/source/misc/makefile.mk b/svtools/source/misc/makefile.mk
index e66bba3..fe76804 100755
--- a/svtools/source/misc/makefile.mk
+++ b/svtools/source/misc/makefile.mk
@@ -60,6 +60,7 @@ SLOFILES=\
$(SLO)$/ehdl.obj \
$(SLO)$/embedhlp.obj \
$(SLO)$/embedtransfer.obj \
+ $(SLO)$/filechangedchecker.obj \
$(SLO)$/helpagentwindow.obj \
$(SLO)$/imagemgr.obj \
$(SLO)$/imageresourceaccess.obj \
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