D5602: [Greeter] Expose wallpaper QML item as "wallpaper" context property

[Kai Uwe Broulik]

broulik created this revision.
Restricted Application added a project: Plasma.
Restricted Application added a subscriber: plasma-devel.

REVISION SUMMARY
  This way the look and feel package can access the item and for example reparent it elsewhere for a slide gesture to reveal the password input.

TEST PLAN
  Put something like this in my `LockScreenUi`
  
    MouseArea {
        id: wallpaperSlider
        width: parent.width
        height: parent.height
        z: 100
        drag.target: this
        ...
    }
    
    Binding {
        target: wallpaper
        property: "parent"
        value: wallpaperSlider
    }
  
  F3735303: Screenshot_20170426_172423.png <https://phabricator.kde.org/F3735303> (Imagine the cursor dragging the picture upwards ;)
  
  Not something I would like on Plasma desktop but certainly interesting for the phone and gives LnF creators more freedom (e.g. in the "K10" package)

REPOSITORY
  R133 KScreenLocker

REVISION DETAIL
  https://phabricator.kde.org/D5602

AFFECTED FILES
  greeter/greeterapp.cpp

To: broulik, #plasma
Cc: plasma-devel, spstarr, progwolff, Zren, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol, lukas
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