forked from amazingfate/loongoffice
420e834007
Commit 574eec9036c5f185b3572ba1e0ca9d111eb361dc happened to reveal a pre-existing problem that XLSX export only saved those OLE objects that were kept loaded in the OLE object cache, subject to thevalue of org.openoffice.Office.Common/Cache/DrawingEngine/OLE_Objects. Before that change, the imported charts were marked modified on load, and that prevented them from unloading in OLEObjCache::UnloadCheckHdl, because SdrOle2Obj::CanUnloadRunningObj returned false. After the mentioned change, the charts started to load without the wrong "modified" state, which allowed them to be properly managed by the cache, and the export filter implementation error surfaced. It's likely that commit 692878e3bb83c0fc104c5cca946c25ccf2d84ab2 tried to workaround the same underlying problem for charts that for some reason / at some point in time didn't get marked modified on load, and that commit converted an error shown in Excel into silently missing charts. This change makes sure that whenever a reference to chart document is requested from XclExpChartObj, it is actually loaded and ready for reading data. Possibly something could be done on the level of old reference that becomes non-functional (although valid) as the result of unloading, so that it would automatically reload on following use. That would make operating on the references robust. I didn't find an obvious way to do that. It is interesting to investigate, it the heizenbug related to images disappearing from documents, as users keep reporting without robust reproducers, might possibly be caused by a similar problem. Change-Id: I45fcdc98254157d805c7519340b5265526f27166 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/120688 Tested-by: Jenkins Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>
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