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ApplicationStates: add more states to Qt::ApplicationState 

On mobile platforms, Qt::ApplicationActive and Qt::ApplicationInactive
are not sufficient to describe the different states an application can
be in. This patch introduces Qt::ApplicationHidden and
Qt::ApplicationSuspended that should fill in the gaps, at least
on Android and iOS.

Change-Id: I3f5a584cf6f4832e7c81dea095dcf711a8866c38
Reviewed-by: Samuel Rødal <samuel.rodal@digia.com>
Reviewed-by: Gunnar Sletta <gunnar.sletta@digia.com>
bb10
Richard Moe Gustavsen 2013-02-28 14:57:27 +01:00 committed by The Qt Project
parent 2f31bbd9cc
commit e27ca37d18
2 changed files with 21 additions and 4 deletions
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6
src/corelib/global/qnamespace.h
View File

@ -326,8 +326,10 @@ public:
Q_DECLARE_FLAGS(WindowStates, WindowState)
enum ApplicationState {
ApplicationInactive = 0x00000000,
ApplicationActive = 0x00000001
ApplicationSuspended = 0x00000000,
ApplicationHidden = 0x00000001,
ApplicationInactive = 0x00000002,
ApplicationActive = 0x00000004
};
Q_DECLARE_FLAGS(ApplicationStates, ApplicationState)

19
src/corelib/global/qnamespace.qdoc
View File

@ -1791,8 +1791,23 @@
The states are
\value ApplicationInactive The application is running in the background.
\value ApplicationActive The application is running in the foreground.
\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
*/