[Kde-imaging] [Bug 195106] New: Kipi should be able to lock photos in host application

[Pieter Edelman]

https://bugs.kde.org/show_bug.cgi?id=195106

           Summary: Kipi should be able to lock photos in host application
           Product: kipiplugins
           Version: unspecified
          Platform: Compiled Sources
        OS/Version: unspecified
            Status: UNCONFIRMED
          Severity: wishlist
          Priority: NOR
         Component: libkipi
        AssignedTo: kde-imaging at kde.org
        ReportedBy: p.edelman at gmx.net


Version:            (using Devel)
Installed from:    Compiled sources

For some of the Kipi plugins it is desirable to be able to use the main
application window while the plugin is active. This is especially true for the
web upload plugins, which completely lock the main application while uploading
(see bug 194811 for example).

However, this can only been done if the images that the plugin works on are
locked against modification and deletion (including moving). This mechanism
should be added to libkipi.

Some things to consider:
1. It should work with all programs Kipi supports
2. It should work on all platforms
3. The lock should be lost when the application crashes etc.
4. It should work both on the physical file as on the host applications
database (so for example, Digikam should also understand that the tags can't be
changed when a photo is in the Flickr upload queue).

Because of requirement 2 through 4, I think the most logical way to implement
such a mechanism is to use an explicit signalling mechanism that is interpreted
by the target application. This requires the cooperation of the authors of
these host programs.

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