[dolphin] [Bug 414068] New: Dolphin/dialogs should cache folder contents instead of repopulating the folder view every time.

[bugzilla_noreply at kde.org]

https://bugs.kde.org/show_bug.cgi?id=414068

            Bug ID: 414068
           Summary: Dolphin/dialogs should cache folder contents instead
                    of repopulating the folder view every time.
           Product: dolphin
           Version: unspecified
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: dolphin-bugs-null at kde.org
          Reporter: nervecenter7 at gmail.com
                CC: kfm-devel at kde.org
  Target Milestone: ---

SUMMARY

Whenever browsing to a large folder with Dolphin or a save dialog, the contents
must be repopulated fresh each time. Clicking before the refresh is finished
can lead to browsing into the wrong folder or accidentally clicking a file as
contents fill in. Having to wait slows down browsing immensely and likely
thrashes the hard drive.

Dolphin/KDE should have an in-memory cache which is as simple (and thus small)
as possible, which stores the highest sorted (and thus visible) contents of
commonly browsed folders, such that file browsing is as instantaneous and
smooth as possible. Thumbnails could also be stored if the space to store them
is not an issue.


STEPS TO REPRODUCE
1. Find a large folder with many files.
2. Browse to it in Dolphin.


OBSERVED RESULT

Folders and files take several seconds to repopulate and fill the view, most
noticeable on hard drives.


EXPECTED RESULT

The highest-sorted folder contents should already be present and visible. This
behavior is best-represented by Windows' file manager.

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