Fixup for f3ad84f9

Summary:
Applets which need initial configuration display some centered button
to noth indicate the status as well as help the user to quickly get
to the configuration page.

Having consistent text on those buttons improves UX.

Reviewers: #plasma, broulik

Reviewed By: #plasma, broulik

Subscribers: broulik, plasma-devel

Tags: #plasma

Differential Revision: https://phabricator.kde.org/D12313

Summary:
For a consistent UX use the same component for config UI elements
showing a currently selected color and allowing to trigger a color picker to
select another color.

Test Plan:
All buttons adapt to color changes as well as trigger the color dialog if
activated and take over any chosen color.

Reviewers: #plasma, #vdg, davidedmundson

Reviewed By: #plasma, davidedmundson

Subscribers: davidedmundson, ngraham, plasma-devel

Tags: #plasma

Differential Revision: https://phabricator.kde.org/D12318

Summary:
Especially with some translations the text will not fit on a single line.

BUG: 393232

Reviewers: #plasma, aspotashev

Reviewed By: aspotashev

Subscribers: aspotashev, plasma-devel

Tags: #plasma

Differential Revision: https://phabricator.kde.org/D12307

In case of conflict in i18n, keep the version of the branch "ours"
To resolve a particular conflict, "git checkout --ours path/to/file.desktop"

Summary: Depends: D12287

Test Plan:
Dropping an image file (of listed MIME type) or a folder adds the Media
Frame widget to list of widgets proposed to be added for that file/folder,
selecting it then creates an instance with the given file/folder being set
as source.

Reviewers: #plasma, davidedmundson

Reviewed By: #plasma, davidedmundson

Subscribers: plasma-devel

Tags: #plasma

Differential Revision: https://phabricator.kde.org/D12288

Summary:
It was broken for 2 reasons:
* usage of since-renamed MediaFrame::has() method
* calling push() directly on plasmoid.configuration.pathList was no-op
  due to QTBUG-67773

Test Plan:
Dropping files & folders onto an existing mediaframe widget results in the
files & folders being added now.

Reviewers: #plasma, davidedmundson

Reviewed By: #plasma, davidedmundson

Subscribers: plasma-devel

Tags: #plasma

Differential Revision: https://phabricator.kde.org/D12287

Summary:
"comboBoxItems" does not reference anything, at least after
2700c2f7
Instead the model of the combobox created by JS due to i18n() calls needs
to be indirectly referenced.

To not only avoid some race condition during setup, text of the
fillModeDescription label is now set by a binding, instead of being
manually set in onCurrentIndexChanged handler of the combobox

Test Plan:
Description of fill mode is now correct on initial config page view.
Selecting another fill mode results in update of the description.
Selecting another fill mode now also actually works.

Reviewers: #plasma, davidedmundson

Reviewed By: #plasma, davidedmundson

Subscribers: plasma-devel

Tags: #plasma

Differential Revision: https://phabricator.kde.org/D12134

In case of conflict in i18n, keep the version of the branch "ours"
To resolve a particular conflict, "git checkout --ours path/to/file.desktop"

In case of conflict in i18n, keep the version of the branch "ours"
To resolve a particular conflict, "git checkout --ours path/to/file.desktop"

In case of conflict in i18n, keep the version of the branch "ours"
To resolve a particular conflict, "git checkout --ours path/to/file.desktop"

In case of conflict in i18n, keep the version of the branch "ours"
To resolve a particular conflict, "git checkout --ours path/to/file.desktop"

In case of conflict in i18n, keep the version of the branch "ours"
To resolve a particular conflict, "git checkout --ours path/to/file.desktop"

Summary:
Installing the headers of libplasmapotdprovidercore in the include namespace
	plasma/potdprovider
as well as some CMake Config files of the name
	PlasmaPotdProvider
allows it 3rd-party to develop own potd provider plugins without having
to mess with the complete kdeplasma-addons repo.

A potd-provider plugin template in kapptemplate format should speed up
development of new plugins some more.

Test Plan:
Generated a new plugin from the template, built and installed it, selected
it in the POTD wallpaper and got the KDE logo as fetched from techbase
shown.

Reviewers: xuetianweng

Subscribers: plasma-devel

Tags: #plasma

Differential Revision: https://phabricator.kde.org/D11964

Summary:
The desktop files are only used at buildtime, so given the existing support
of scripty for plugin metadata JSON files, no need for the additional format
conversion during the build.

Test Plan: All plugins still load and build.

Reviewers: xuetianweng

Subscribers: ltoscano, plasma-devel

Tags: #plasma

Differential Revision: https://phabricator.kde.org/D11954

Summary:
There is no need to use pimpl for non-public-API classes.

While touching the code, also change to use consistently
modern signal-slot connections.

Test Plan: All plugins still build, load & work as before.

Reviewers: xuetianweng

Subscribers: plasma-devel

Tags: #plasma

Differential Revision: https://phabricator.kde.org/D11957

Summary:
The used service no longer existed. While the pointers listed e.g. at
https://commons.wikimedia.org/wiki/Commons:Press_releases/Picture_of_the_Day_RSS
are outdated, and any currently existing RSS feeds would need complicated parsing of
unspecified feed content (so prone to change and fail) I found a nice though seemingly
proper hack in the code of https://github.com/simison/WikimediaCommonsPotd to first
get the filename of the current potd by using the Web API to have the wiki macro
"{{Potd}}" be resolved and then get it fetched by Wikimedia Commons'
Redirect/file tool.

Test Plan:
Select wallpaper "Picture of the Day", select as provider "Wikimedia Picture
of the Day", click Apply and see a picture fetched, matching the one listed
as picture of the day on the wikimedia website like
https://commons.wikimedia.org/wiki/Commons:Picture_of_the_day

Reviewers: xuetianweng, ngraham

Reviewed By: ngraham

Subscribers: ngraham, plasma-devel

Tags: #plasma

Differential Revision: https://phabricator.kde.org/D11978