| commit | 6840e4519a6ce8bcc1328eb2d87b5c46c6df1038 | [log] [tgz] |
|---|---|---|
| author | Tor Lillqvist <tml@collabora.com> | Tue May 22 11:00:35 2018 +0300 |
| committer | Tor Lillqvist <tml@collabora.com> | Tue May 22 14:03:50 2018 +0300 |
| tree | 02e25c902b7dc1039e4d15451154be4802cc71cb | |
| parent | d62acf55f17f5b1213f150fb4fb0fd2e8bb0b9b0 [diff] |
Open template read-only
Otherwise when creating a new docuent based on a template, the
template document file is opened read-write eventually (after first
being opened read-only five times, and closed again...). Sure,
LibreOffice probably doesn't actually write anything to it, but still,
just opening read-write when you are going to only read is silly.
Stack trace from the read-write opening:
#0 0x00007f063dea0047 in openFilePath(char const*, void**, unsigned int, unsigned int) (cpFilePath=0x7ffeacc7d610 "/ssd1/lo/fedora/instdir/share/template/common/officorr/Modern_business_letter_sans_serif.ott", pHandle=0x342af78, uFlags=3, mode=438)
at /ssd1/lo/fedora/sal/osl/unx/file.cxx:1039
#1 0x00007f063dea027b in openFile(_rtl_uString*, void**, unsigned int, unsigned int) (ustrFileURL=0x33ff7e0, pHandle=0x342af78, uFlags=3, mode=4294967295) at /ssd1/lo/fedora/sal/osl/unx/file.cxx:1071
#2 0x00007f063dea01a8 in osl_openFile(rtl_uString*, oslFileHandle*, sal_uInt32) (ustrFileURL=0x33ff7e0, pHandle=0x342af78, uFlags=3)
at /ssd1/lo/fedora/sal/osl/unx/file.cxx:1050
#3 0x00007f060aec5f1a in osl::File::open(unsigned int) (this=0x342af78, uFlags=3) at /ssd1/lo/fedora/include/osl/file.hxx:975
#4 0x00007f060aec5a8f in fileaccess::ReconnectingFile::open(unsigned int) (this=0x342af78, uFlags=3)
at /ssd1/lo/fedora/ucb/source/ucp/file/filrec.cxx:50
#5 0x00007f060aee0324 in fileaccess::XStream_impl::XStream_impl(rtl::OUString const&, bool) (this=0x342af10, aUncPath="file:///ssd1/lo/fedora/instdir/share/template/common/officorr/Modern_business_letter_sans_serif.ott", bLock=true) at /ssd1/lo/fedora/ucb/source/ucp/file/filstr.cxx:58
#6 0x00007f060aee8bac in fileaccess::TaskManager::open_rw(int, rtl::OUString const&, bool) (this=0x2c5ded0, CommandId=231, aUnqPath="file:///ssd1/lo/fedora/instdir/share/template/common/officorr/Modern_business_letter_sans_serif.ott", bLock=true)
at /ssd1/lo/fedora/ucb/source/ucp/file/filtask.cxx:766
#7 0x00007f060ae9ba9b in fileaccess::BaseContent::open(int, com::sun::star::ucb::OpenCommandArgument2 const&) (this=0x3428810, nMyCommandIdentifier=231, aCommandArgument=...) at /ssd1/lo/fedora/ucb/source/ucp/file/bc.cxx:937
#8 0x00007f060ae99dfa in fileaccess::BaseContent::execute(com::sun::star::ucb::Command const&, int, com::sun::star::uno::Reference<com::sun::star::ucb::XCommandEnvironment> const&) (this=0x3428810, aCommand=..., CommandId=231, Environment=uno::Reference to (ucbhelper::CommandEnvironment *) 0x341d088) at /ssd1/lo/fedora/ucb/source/ucp/file/bc.cxx:331
#9 0x00007f060ae9d001 in non-virtual thunk to fileaccess::BaseContent::execute(com::sun::star::ucb::Command const&, int, com::sun::star::uno::Reference<com::sun::star::ucb::XCommandEnvironment> const&) () at /ssd1/lo/fedora/instdir/program/../program/libucpfile1.so
#10 0x00007f06337395da in ucbhelper::Content_Impl::executeCommand(com::sun::star::ucb::Command const&) (this=0x3427f70, rCommand=...)
at /ssd1/lo/fedora/ucbhelper/source/client/content.cxx:1258
#11 0x00007f063373be55 in ucbhelper::Content::openWriteableStream() (this=0x7ffeacc7f030)
at /ssd1/lo/fedora/ucbhelper/source/client/content.cxx:751
#12 0x00007f06333f56c0 in utl::MediaDescriptor::impl_openStreamWithURL(rtl::OUString const&, bool) (this=0x7ffeacc801d0, sURL="file:///ssd1/lo/fedora/instdir/share/template/common/officorr/Modern_business_letter_sans_serif.ott", bLockFile=true)
at /ssd1/lo/fedora/unotools/source/misc/mediadescriptor.cxx:666
#13 0x00007f06333f3e01 in utl::MediaDescriptor::impl_addInputStream(bool) (this=0x7ffeacc801d0, bLockFile=true)
at /ssd1/lo/fedora/unotools/source/misc/mediadescriptor.cxx:521
#14 0x00007f06333f4051 in utl::MediaDescriptor::addInputStreamOwnLock() (this=0x7ffeacc801d0)
at /ssd1/lo/fedora/unotools/source/misc/mediadescriptor.cxx:490
#15 0x00007f05b132f0bf in filter::config::TypeDetection::impl_openStream(utl::MediaDescriptor&) (this=0x33caa10, rDescriptor=...)
at /ssd1/lo/fedora/filter/source/config/cache/typedetection.cxx:1127
#16 0x00007f05b132e9ac in filter::config::TypeDetection::impl_askDetectService(rtl::OUString const&, utl::MediaDescriptor&) (this=0x33caa10, sDetectService="com.sun.star.comp.filters.StorageFilterDetect", rDescriptor=...) at /ssd1/lo/fedora/filter/source/config/cache/typedetection.cxx:981
#17 0x00007f05b132b7a4 in filter::config::TypeDetection::impl_detectTypeFlatAndDeep(utl::MediaDescriptor&, std::__debug::vector<filter::config::FlatDetectionInfo, std::allocator<filter::config::FlatDetectionInfo> > const&, bool, std::__debug::vector<rtl::OUString, std::allocator<rtl::OUString> >&, rtl::OUString&) (this=0x33caa10, rDescriptor=..., lFlatTypes=std::__debug::vector of length 168, capacity 256 = {...}, bAllowDeep=true, rUsedDetectors=std::__debug::vector of length 1, capacity 1 = {...}, rLastChance="")
at /ssd1/lo/fedora/filter/source/config/cache/typedetection.cxx:934
#18 0x00007f05b1329b7c in filter::config::TypeDetection::queryTypeByDescriptor(com::sun::star::uno::Sequence<com::sun::star::beans::PropertyValue>&, unsigned char) (this=0x33caa10, lDescriptor=uno::Sequence of length 6 = {...}, bAllowDeep=1 '\001')
at /ssd1/lo/fedora/filter/source/config/cache/typedetection.cxx:429
#19 0x00007f05b132d321 in non-virtual thunk to filter::config::TypeDetection::queryTypeByDescriptor(com::sun::star::uno::Sequence<com::sun::star::beans::PropertyValue>&, unsigned char) () at /usr/bin/../lib/gcc/x86_64-redhat-linux/8/../../../../include/c++/8/bits/stl_pair.h:331
#20 0x00007f060df5acdd in framework::LoadEnv::impl_detectTypeAndFilter() (this=0x7ffeacc80c48)
at /ssd1/lo/fedora/framework/source/loadenv/loadenv.cxx:739
#21 0x00007f060df58796 in framework::LoadEnv::startLoading() (this=0x7ffeacc80c48) at /ssd1/lo/fedora/framework/source/loadenv/loadenv.cxx:357
#22 0x00007f060df57280 in framework::LoadEnv::loadComponentFromURL(com::sun::star::uno::Reference<com::sun::star::frame::XComponentLoader> const&, com::sun::star::uno::Reference<com::sun::star::uno::XComponentContext> const&, rtl::OUString const&, rtl::OUString const&, int, com::sun::star::uno::Sequence<com::sun::star::beans::PropertyValue> const&) (xLoader=uno::Reference to (framework::Desktop *) 0x282bf98, xContext=uno::Reference to (cppu::ComponentContext *) 0x145b790, sURL="file:///ssd1/lo/fedora/instdir/share/template/common/officorr/Modern_business_letter_sans_serif.ott", sTarget="_default", nFlags=0, lArgs=uno::Sequence of length 4 = {...}) at /ssd1/lo/fedora/framework/source/loadenv/loadenv.cxx:160
#23 0x00007f060dfaef40 in framework::Desktop::loadComponentFromURL(rtl::OUString const&, rtl::OUString const&, int, com::sun::star::uno::Sequence<com::sun::star::beans::PropertyValue> const&) (this=0x282bf20, sURL="file:///ssd1/lo/fedora/instdir/share/template/common/officorr/Modern_business_letter_sans_serif.ott", sTargetFrameName="_default", nSearchFlags=0, lArguments=uno::Sequence of length 4 = {...})
at /ssd1/lo/fedora/framework/source/services/desktop.cxx:617
#24 0x00007f060dfaeffb in non-virtual thunk to framework::Desktop::loadComponentFromURL(rtl::OUString const&, rtl::OUString const&, int, com::sun::star::uno::Sequence<com::sun::star::beans::PropertyValue> const&) () at /ssd1/lo/fedora/include/rtl/stringutils.hxx:170
#25 0x00007f06381ee762 in SfxTemplateManagerDlg::OpenTemplateHdl(ThumbnailViewItem*) (this=0x310e160, pItem=0x33925d0)
at /ssd1/lo/fedora/sfx2/source/doc/templatedlg.cxx:690
Change-Id: Iaa5cc2bd4c80bc239b8f1bf7ed8aa62d89151d62
LibreOffice is an integrated office suite based on copyleft licenses and compatible with most document formats and standards. Libreoffice is backed by The Document Foundation, which represents a large independent community of enterprises, developers and other volunteers moved by the common goal of bringing to the market the best software for personal productivity. LibreOffice is open source, and free to download, use and distribute.
A quick overview of the LibreOffice code structure.
You can develop for LibreOffice in one of two ways, one recommended and one much less so. First the somewhat less recommended way: it is possible to use the SDK to develop an extension, for which you can read the API docs here and here. This re-uses the (extremely generic) UNO APIs that are also used by macro scripting in StarBasic.
The best way to add a generally useful feature to LibreOffice is to work on the code base however. Overall this way makes it easier to compile and build your code, it avoids any arbitrary limitations of our scripting APIs, and in general is far more simple and intuitive - if you are a reasonably able C++ programmer.
These are the current minimal operating system and compiler versions to run and compile LibreOffice, also used by the TDF builds:
If you want to use Clang with the LibreOffice compiler plugins, the minimal version of Clang is 3.4. Since Xcode doesn't provide the compiler plugin headers, you have to compile your own Clang to use them on macOS.
You can find the TDF configure switches in the distro-configs/ directory.
To setup your initial build environment on Windows and macOS, we provide the LibreOffice Development Environment (LODE) scripts.
For more information see the build instructions for your platform in the TDF wiki.
Each module should have a README file inside it which has some degree of documentation for that module; patches are most welcome to improve those. We have those turned into a web page here:
However, there are two hundred modules, many of them of only peripheral interest for a specialist audience. So - where is the good stuff, the code that is most useful. Here is a quick overview of the most important ones:
| Module | Description |
|---|---|
| sal/ | this provides a simple System Abstraction Layer |
| tools/ | this provides basic internal types: 'Rectangle', 'Color' etc. |
| vcl/ | this is the widget toolkit library and one rendering abstraction |
| framework | UNO framework, responsible for building toolbars, menus, status bars, and the chrome around the document using widgets from VCL, and XML descriptions from /uiconfig/ files |
| sfx2/ | legacy core framework used by Writer/Calc/Draw: document model / load/save / signals for actions etc. |
| svx/ | drawing model related helper code, including much of Draw/Impress |
Then applications
| Module | Description |
|---|---|
| desktop/ | this is where the 'main' for the application lives, init / bootstrap. the name dates back to an ancient StarOffice that also drew a desktop |
| sw/ | Writer |
| sc/ | Calc |
| sd/ | Draw / Impress |
There are several other libraries that are helpful from a graphical perspective:
| Module | Description |
|---|---|
| basegfx/ | algorithms and data-types for graphics as used in the canvas |
| canvas/ | new (UNO) canvas rendering model with various backends |
| cppcanvas/ | C++ helper classes for using the UNO canvas |
| drawinglayer/ | View code to render drawable objects and break them down into primitives we can render more easily. |
Use the "..." form if and only if the included file is found next to the including file. Otherwise, use the <...> form. (For further details, see the mail Re: C[++]: Normalizing include syntax ("" vs <>).)
The UNO API include files should consistently use double quotes, for the benefit of external users of this API.
Beyond this, you can read the README files, send us patches, ask on the mailing list libreoffice@lists.freedesktop.org (no subscription required) or poke people on IRC #libreoffice-dev on irc.freenode.net - we're a friendly and generally helpful mob. We know the code can be hard to get into at first, and so there are no silly questions.