D11663: Add InlineMessage type and Gallery app example page

[Eike Hein]

hein created this revision.
hein added reviewers: Kirigami, mart.
Restricted Application added a project: Kirigami.
Restricted Application added a subscriber: plasma-devel.
hein requested review of this revision.

REVISION SUMMARY
  InlineMessage can be used to show various messages to the user,
  without requiring the use of a dialog.
  
  InlineMessage is analogous to KWidgetAddons' KMessageWidget and
  provides nearly the same API:
  
  - Message type: Information (default), Positive, Warning or Error
  - Message text
  - Icon (optional)
  - Closable (optional, shows close button)
  - Actions list (shown as buttons)
  - Signals for link hover and link activation
  - Animation state
  
  It does not implement the 'wordWrap' property of KMessageWidget.
  Instead, wrapping the message text is always wrapped.
  
  Further, unlike in KMessageWidget, actions buttons are added from
  left to right, not from right to left.
  
  Additionally, it improves over KMessageWidget in two ways:
  
  - If no icon is manually set, it shows an appropriate icon for the message type by default.
  - Overflow handling for many messages (à la the Card component).
  
  All properties are declared abstractly in the template and all
  visuals are implemented in the control, so that the style can
  optionally override the appearance fully.
  
  This patch also adds an example page to the Gallery app which
  illustrates the various message types and features in an
  interactive manner.
  
  Random notes:
  
  - I would have preferred to make the template API completely abstract and had 'showCloseButton' as 'closable' originally but then changed it for consistency with the property in OverlaySheet.

REPOSITORY
  R169 Kirigami

BRANCH
  master

REVISION DETAIL
  https://phabricator.kde.org/D11663

AFFECTED FILES
  examples/galleryapp/CMakeLists.txt
  examples/galleryapp/resources.qrc
  examples/gallerydata/contents/ui/MainPage.qml
  examples/gallerydata/contents/ui/gallery/InlineMessagesGallery.qml
  kirigami.qrc
  src/controls/InlineMessage.qml
  src/controls/plugins.qmltypes
  src/controls/templates/InlineMessage.qml
  src/enums.h
  src/kirigamiplugin.cpp
  src/qmldir

To: hein, #kirigami, mart
Cc: plasma-devel, apol, davidedmundson, mart, hein
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