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Review request for KDE Frameworks. Bugs: 346403 https://bugs.kde.org/show_bug.cgi?id=346403 Repository: kio Description ------- Added a method for this KDirModel so it can emit dataChanged only once (or once per dir in a tree) rather than for every item. CCBUG: 346403 Diffs ----- src/filewidgets/kdiroperator.cpp 59b1141e3ffb8e95680e98ed29073a977d8d52a8 src/filewidgets/kfilepreviewgenerator.cpp 6937110aa53424f87575166109fa122452f9a817 src/widgets/kdirmodel.h 0cefcae6b3c6e14b0505683ff533bf25e7ccf583 src/widgets/kdirmodel.cpp 2e81d30990c0eb2af742fe1c811f991c0ad892e9 Diff: https://git.reviewboard.kde.org/r/129159/diff/ Testing ------- kdialog --getopenfilename /dir/with/many/images Clicking on the file dialog's "preview" button to turn them off. Before: 100% CPU for a minute or so After: immediate response Thanks, David Faure