c84ffb6114
Change-Id: I7b4547bfee4ff0bd3bbe7366b6294e925852ce65 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/143221 Tested-by: Caolán McNamara <caolanm@redhat.com> Reviewed-by: Caolán McNamara <caolanm@redhat.com>
57 lines
2 KiB
Markdown
57 lines
2 KiB
Markdown
# Miscellaneous Modules
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This module contains a grab-bag of unrelated miscellaneous libraries, *none* of
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which is an extension.
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## Application Online Update Checking
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When we start LO, first `InitUpdateCheckJobThread` is created, via
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`UpdateCheckJob::execute()` (from `extensions/source/update/check/updatecheckjob.cxx`),
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as a reaction to a `onFirstVisibleTask` event. It waits 25 seconds (so that it
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does not interfere with the startup itself), and then calls
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`UpdateCheck::initialize()` (from `extensions/source/update/check/updatecheck.cxx`).
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This creates one more thread, `UpdateCheckThread`, that regularly checks whether
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we have reached the time when we should ask for the update. If yes, asks for
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that, and shows the download button in the menu (if the new update is
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available).
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The update server will decide if there is an update available based on the user-agent
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string created by UpdateInformationProvider::getUserAgent, the data used there is
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extracted from instdir/program/versionrc and the update server takes the buildid into
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account, so to experiment with the updates from a dev version getUserAgent needs
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to return a recognized id.
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## OLE Automation Bridge
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A bridge between "OLE automation" and UNO, so you can use UNO services
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from JScript, VBScript, etc.
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<https://www.openoffice.org/udk/common/man/spec/ole_bridge.html>
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See `udkapi/com/sun/star/bridge/oleautomation/ApplicationRegistration.idl`
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This is initialized in `Desktop::Main()` in `Desktop::OpenClients_Impl()`
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by creating the service `com.sun.star.bridge.OleApplicationRegistration`,
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which is implemented by `OleServer_Impl`.
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See `extensions/source/ole/`
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## ActiveX Control
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This allows embedding LO into a Win32 application as an ActiveX control.
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See `extensions/source/activex/`
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## Spotlight Provider
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On macOS, this allows indexing ODF documents with Spotlight.
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See `extensions/source/macosx/spotlight/`
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## Scanner Support
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You can scan from LibreOffice, using platform specific backends like TWAIN/SANE.
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See `extensions/source/scanner/`
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