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qtubuntu plugin uses the ApplicationActivate and ApplicationDeactivate QEvents
for life cycle management.
These have become deprecated and been replaced by Qt::ApplicationState since
Qt5.1
The states should be set with:
QWindowSystemInterface::handleApplicationStateChanged(Qt::ApplicationState
state)
The qtnamespace docs:
/*!
\enum Qt::ApplicationState
\keyword application state
This enum type is used to specify the current state of the
application.
The states are
\value ApplicationSuspended The application is about to suspend. When
entering this state, the
application should save its state, cease all
activities, and be
prepared for code execution to stop. While
suspended, the
application can be killed at any time
without further warnings
(e.g. when low memory forces the OS to purge
suspended applications).
\value ApplicationHidden The application is hidden and runs in the
background. This
is the normal state for applications that
need to do background
processing, like playing music, while the
user interacts with
other applications. The application should
free up all graphical
resources when entering this state.
\value ApplicationInactive The application is visible, but not selected
to be in front.
On desktop platforms, this typically means
that the user
activated another application. On mobile
platforms, it is
more common to enter this state when the OS
is interrupting
the user with e.g. incoming calls or
SMS-messages.
While in this state, consider reducing
CPU-intensive tasks.
\value ApplicationActive The application is visible and selected to
be in front.
\since 5.1
*/
This will also make it possible to set more appropriate life cycle
states. We can then react to Qt.ApplicationSuspended on the
application.state object from QML to react when the application gets
suspended.
UbuntuClientIntegration::hasCapability should then also return true with
ApplicationState
** Affects: qtubuntu (Ubuntu)
Importance: Undecided
Status: New
--
Uses depricated QEvent::ApplicationActivate
https://bugs.launchpad.net/bugs/1504776
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