Plasma 5.3 changelog

[Eike Hein]

Hiyo,

we're freezing this week, so it's time to gather the changes
for the promo folks again. I'll start with the noteworthy
stuff in my components:


* The Desktop and Folder View containment codebases were
   unified, and have seen performance improvements, code
   cleanups and porting to newer Qt APIs.

* The Desktop and Folder View containments have improved
   widget handling, fixing bugs e.g. in the size calculation
   for the widget placeholder rectangle shown while moving
   widgets.

* The Desktop and Folder View containments have a new
   experimental "Press and hold" mode for widget management,
   available as an option on the new "Tweaks" config page.
   In this mode, widgets can be moved after pressing and
   holding anywhere on the widget, and the widget handle
   will only be shown after press and hold rather than on
   hover. When this mode is enabled, unlocking the desktop
   will show a helpful instruction notification (which can
   be dismissed forever from the popup).

* The Desktop and Folder View containments have a new option
   to hide the Desktop Toolbox, available on the new "Tweaks"
   config page.

(^ This last one is not yet pushed, but will be by freeze
time.)

* The rubberband selection code in Folder View was rewritten
   and now selects icons as soon as the rubberband touches the
   bounding box of icon and text label, instead of testing for
   the midpoint a the folder item.

---

* The Recent Documents and Recent Applications sections in
   Application Menu (Kicker) are now powered by KDE activities.
   This e.g. means Recent Applications will pick up on apps
   launched outside the menu provided those other launchers
   hook into KDE activities as well.

* Application Menu (Kicker) has a new Recent Contacts
   section that lists IM contacts in order of recently talked
   to, with realtime status icon information. As this requires
   a new release of KDE Telepathy (or other messengers) that
   enters conversation info into the KDE activities db, this
   section will still be disabled by default in 5.3.

* There's config (and context menu actions) for enabling and
   disabling the Recent * menu sections.

* The context menu of application items (including sidebar
   favorites) in Application Menu (Kicker) now shows per-app-
   lication recent documents entries, also powered by KDE
   activities. This makes it very easy to relaunch an app on a
   recently-used document.

* Keyboard navigation in Application Menu (Kicker) was over-
   hauled with many subtle behavior and bug fixes.

* Improved subdialog focus handling in Application Menu
   (Kicker).

---

* Task Manager and Icons-only Task Manager now show entries
   for recent documents in the context menus of launcher items,
   making it very easy to relaunch an app on a recently-used
   document.

* Task Manager and Icons-only Task Manager gained a new
   config option to disable switching tasks by mouse wheel
   scroll.


Cheers,
Eike