Allow selecting multiple notebooks

[amberin]

There are now some differences in the top "app bar" menu choices depending on how many notebooks are selected:

• The "export" and "rename" choices are removed when multiple notebooks are selected.
• When setting the repository link of multiple notebooks, no repository is pre-selected, even if all notebooks are currently linked to the same repository. The rationale is that I found no good way of showing existing links to multiple repos, so it seemed better to me to never make a pre-selection.
• When deleting a single notebook, its repository URL is shown in the dialog prompting whether to delete the linked repository file. However, when deleting multiple notebooks, no repository URLs are shown. The rationale is that I found no intuitive way of presenting multiple URLs in the dialog along with their corresponding notebooks.

[alensiljak]

If the only reason for this is to be able to delete multiple notebooks, perhaps there is an easier way to do just that?
I.e. a screen with a list of notebooks which can be deleted individually or selected with a checkbox and deleted all together.
It seems that a multi-select will be pretty confusing in the existing context.

[amberin]

@alensiljak Thanks for the input!

It seems that a multi-select will be pretty confusing in the existing context.

Do you mean because of the change in the menu choices? My understanding was that this menu is supposed to be context-dependant, and that its content changes all the time, depending on activity, what is selected, etc. For example, when no notebooks are selected, the menu choices are completely different compared to when one notebook is selected. Hiding two options when multiple books are selected doesn't seem very confusing to me?

I'll add a few pictures showing what these changes look like, just to make sure we're on the same page.

[amberin]

Oh and yes, what you can do after this change is to delete multiple books, but also set their repo links and force save/load.

[amberin]

The original Orgzly issue was created by someone who wanted to force load/save multiple books at once.

[amberin]

Some explanatory screenshots:

Context menu choices with one notebook selected:

Context menu choices with multiple notebooks selected (no "export" or "rename" options):

Setting the link of one notebook (currently linked repo is pre-selected):

Setting the link of multiple notebooks (no repo is pre-selected):

Deleting one synced notebook (synced-to-URL is shown):

Deleting multiple synced notebooks (no URLs are shown):

[amberin]

Sorry for the flip-flopping; I realized I had forgotten to add tests of force loading and -saving.

[Wjxfi]

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