Copyright | Will Thompson Iñaki García Etxebarria and Jonas Platte |
---|---|
License | LGPL-2.1 |
Maintainer | Iñaki García Etxebarria (garetxe@gmail.com) |
Safe Haskell | None |
Language | Haskell2010 |
GI.Gtk.Objects.Accessible
Description
The Accessible
class is the base class for accessible
implementations for Widget
subclasses. It is a thin
wrapper around Object
, which adds facilities for associating
a widget with its accessible object.
An accessible implementation for a third-party widget should
derive from Accessible
and implement the suitable interfaces
from ATK, such as Text
or Selection
. To establish
the connection between the widget class and its corresponding
acccessible implementation, override the get_accessible vfunc
in WidgetClass
.
- newtype Accessible = Accessible (ManagedPtr Accessible)
- class GObject o => IsAccessible o
- toAccessible :: (MonadIO m, IsAccessible o) => o -> m Accessible
- noAccessible :: Maybe Accessible
- accessibleConnectWidgetDestroyed :: (HasCallStack, MonadIO m, IsAccessible a) => a -> m ()
- accessibleGetWidget :: (HasCallStack, MonadIO m, IsAccessible a) => a -> m (Maybe Widget)
- accessibleSetWidget :: (HasCallStack, MonadIO m, IsAccessible a, IsWidget b) => a -> Maybe b -> m ()
- clearAccessibleWidget :: (MonadIO m, IsAccessible o) => o -> m ()
- constructAccessibleWidget :: (IsAccessible o, IsWidget a) => a -> IO (GValueConstruct o)
- getAccessibleWidget :: (MonadIO m, IsAccessible o) => o -> m (Maybe Widget)
- setAccessibleWidget :: (MonadIO m, IsAccessible o, IsWidget a) => o -> a -> m ()
Exported types
newtype Accessible Source #
Constructors
Accessible (ManagedPtr Accessible) |
class GObject o => IsAccessible o Source #
Instances
toAccessible :: (MonadIO m, IsAccessible o) => o -> m Accessible Source #
Methods
connectWidgetDestroyed
accessibleConnectWidgetDestroyed Source #
Arguments
:: (HasCallStack, MonadIO m, IsAccessible a) | |
=> a |
|
-> m () |
Deprecated: (Since version 3.4)Use accessibleSetWidget
and its vfuncs.
This function specifies the callback function to be called when the widget corresponding to a GtkAccessible is destroyed.
getWidget
Arguments
:: (HasCallStack, MonadIO m, IsAccessible a) | |
=> a |
|
-> m (Maybe Widget) | Returns: pointer to the |
Gets the Widget
corresponding to the Accessible
.
The returned widget does not have a reference added, so
you do not need to unref it.
Since: 2.22
setWidget
Arguments
:: (HasCallStack, MonadIO m, IsAccessible a, IsWidget b) | |
=> a |
|
-> Maybe b | |
-> m () |
Sets the Widget
corresponding to the Accessible
.
accessible
will not hold a reference to widget
.
It is the caller’s responsibility to ensure that when widget
is destroyed, the widget is unset by calling this function
again with widget
set to Nothing
.
Since: 2.22
Properties
widget
clearAccessibleWidget :: (MonadIO m, IsAccessible o) => o -> m () Source #
constructAccessibleWidget :: (IsAccessible o, IsWidget a) => a -> IO (GValueConstruct o) Source #
getAccessibleWidget :: (MonadIO m, IsAccessible o) => o -> m (Maybe Widget) Source #
setAccessibleWidget :: (MonadIO m, IsAccessible o, IsWidget a) => o -> a -> m () Source #