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http://www.openoffice.org/issues/show_bug.cgi?id=66491
Issue #:|66491
Summary:|Do copy on "Save as" if doc is in unchanged state (to
|speed up)
Component:|framework
Version:|OOo 2.0
Platform:|All
URL:|
OS/Version:|All
Status:|UNCONFIRMED
Status whiteboard:|
Keywords:|
Resolution:|
Issue type:|ENHANCEMENT
Priority:|P3
Subcomponent:|code
Assigned to:|tm
Reported by:|maenneph
------- Additional comments from [EMAIL PROTECTED] Thu Jun 15 14:29:18 -0700
2006 -------
On older systems, OOo's saving function is not instant but takes a couple of
seconds. This issue discusses a special, but common use case ("save as" after
"save") and suggests a performance improvement through 1:1 copy.
Steps to reproduce the special case:
1. have an existing document open and make changes to it
2. save the changes to this document (regular save, ctrl+s)
3. leave document completely unchanged (indicated by disabled save button)
4. use "save as" to save this document under a different file-name
Optimal / expected result:
Since the document's content/state is unchanged between the first save request
and the second save request, the second save request could issue a simple
file-system copy command and therefore be completed much faster.
Actual result:
On second save ("save as"), the resulting file is unnecesserily genenerated from
scratch out of the doctree again.
Comments:
I tested this behaviour with OOo-writer only, but I think the pattern applies to
all OOo applications equally. I don't have the OOo SRC available atm for
inspection, but I did some black-box testing to back this:
When using OOo-writer for creating two test-files using the steps described
above, an XML diff on the odf files shows they are completely identical,so a
simple copy on second save would be no problem, and would make the second save
be really fast. I don't see why it should make a difference whether a user
copies an unchanged document in the FS by hand or through OOo ("save as" after
"save"), when nothing was changed.
Please tell me if I am missing something.
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