class: ATContext

[16:7] extends: object

Communicates with platform-specific assistive technologies API. Each platform supported by GTK implements a GtkATContext subclass, and is responsible for updating the accessible state in response to state changes in GtkAccessible.

Members

• handleObj
• lib
• retainedCallbacks
• signalHandlerNames
• signalSetterHandlers

Methods

• ATContext (accessible_role = null, accessible = null, display = null)

  Creates a new GtkATContext instance for the given accessible role, accessible instance, and display connection. The GtkATContext implementation being instantiated will depend on the platform.

  • @p accessible_role is the accessible role used by the GtkATContext.
  • @p accessible is the GtkAccessible implementation using the GtkATContext.
  • @p display is the GdkDisplay used by the GtkATContext.

• toNativeHandle (Source)

  Normalizes a constructor argument into a raw pointer carrier. Accepts a raw NativeHandle, a raw NativeBuffer returned from fn.call(...), another generated wrapper exposing handle(), or null. Returns null when the argument carries no pointer.

  • @p Source is the raw handle, raw buffer, wrapper, or null.
  • @r A raw pointer carrier or null when no pointer is present.

• getLib ()

  Returns the opened native library for this generated wrapper.

  • @r The opened native library.

• handle ()

  Returns the wrapped NativeHandle.

  • @r The wrapped NativeHandle.

• isNull ()

  Returns true when the wrapped handle is null.

  • @r A bool.

• describe ()

  Returns a small string for debugging generated wrappers.

  • @r A string.

• asObject ()

  Wraps this handle as Object.

  • @r A Object object.

• connectSignal (string Name, CallbackObj)

  Connects one generated callback wrapper to a named signal.

  • @p Name is the signal name.
  • @p CallbackObj is the generated callback wrapper to connect.
  • @r The connected handler id.

• disconnectSignalHandler (int HandlerId)

  Disconnects one retained signal handler id.

  • @p HandlerId is the signal handler id to disconnect.
  • @r None.

• setOnStatechange (callback Fn, UserData = null)

  Emitted when the attributes of the accessible for the GtkATContext instance change.

  • @p Fn is the Aussom callback.
  • @p Fn is called with (ATContext Self).
  • @p UserData is retained and passed through to the generated callback wrapper when provided.
  • @r The connected handler id.

• getProperty (string Name)

  Reads one generated property by name.

• setProperty (string Name, Value)

  Writes one generated property by name.

• setAccessiblerole (string Value)

  The accessible role used by the AT context. Depending on the given role, different states and properties can be set or retrieved.

  • @p Value is the new property value.
  • @r None.

• setDisplay (object Value)

  The GdkDisplay for the GtkATContext.

  • @p Value is the new property value.
  • @r None.

• get_accessible ()

  Retrieves the GtkAccessible using this context.

• get_accessible_role ()

  Retrieves the accessible role of this context.

class: ATContextMeta

[298:14] static extends: object

Generated metadata helpers for ATContext class surfaces.

Methods

• properties ()

  Returns property metadata for ATContext.

  • @r A list.

• signals ()

  Returns signal metadata for ATContext.

  • @r A list.

class: ATContextStatechangeCallback

[228:7] extends: object

Generated low-level callback wrapper for GIR callback state-change.

Members

• callbackObj
• userFn
• userData
• hasUserData

Methods

• ATContextStatechangeCallback (callback Fn, UserData = null)

  Creates one native callback wrapper. The wrapper owns a trampoline that converts native pointers into generated wrapper objects before invoking Fn.

  • @p Fn is the Aussom callback implementation.
  • @p UserData is retained and passed through to Fn on each invocation when provided.

• trampoline (nativeSelf, nativeUserData)

  Internal trampoline. Converts native pointer arguments into generated wrapper instances, then invokes the user's callback.

• callback ()

  Returns the wrapped NativeCallback.

• handle ()

  Returns the callback as a NativeHandle.

• close ()

  Closes the underlying NativeCallback.

• isClosed ()

  Returns true when the callback has been closed.