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IAccessible2 has a "text-position" attribute with values of "baseline",
"super", and "sub". This relative position is arguably preferable to
having applications specify the pixels via ATK_TEXT_ATTR_RISE, which
applications are not using anyway. Adding text position as an officially
supported attribute increases the likelihood that assistive technologies
will get this information in a predictable fashion.

Update documentation for atk_text_set_caret_offset.

See merge request !18

The documentation lacked any mention of scrolling content into view
when the specified content is off-screen.

Fix building atk as subproject

See merge request !35

Using #include <atk/atk.h> (e.g. in at-spi2-atk) requires the root_inc as
well.

Make atk.pc require glib

See merge request !30

AtkSocketClass (embed): Make plug_id parameter const

See merge request !31

This is a follow-up to e7276a0c ("atk_socket_embed: make plug_id
parameter const").

atkplug: Add atk_plug_new_child

See merge request !27

As discussed on

https://mail.gnome.org/archives/gnome-accessibility-devel/2019-August/msg00001.html

In some cases, one can not use the AtkPlug type directly as accessible
object for the toplevel widget of the application. For instance in the gtk
case, GtkPlugAccessible can not inherit both from GtkWindowAccessible and
from AtkPlug. In such a case, one can create, in addition to the standard
accessible object for the toplevel widget, an AtkPlug object, and make the
former the child of the latter by calling atk_plug_set_child().

More scroll doc fixes

Closes #12

See merge request !29

atk_socket_embed: make plug_id parameter const

See merge request !26

atkutil.h uses several glib/gobject functions in macros, so the caller will
have to link against glib, atk.pc thus has to explicit this.

Make atk_text_rectangle_union ignore undefined rectangles

See merge request !25

To better specify the behavior for e.g. top-left vs bottom-right.

Fixes #12

Avoid confusions between "position" on screen and "position" in the
text.

Remove reference to non-existing atk_text_set_position.

Fixes #12

Refine *_scroll_to_point documentation

Closes #12

See merge request !21

It has no reason to modify it, and strdups it.

atk_text_get_character_extents might return "-1" rectangles for character
positions without support for getting an extent. In that case we have to
ignore them instead of using -1 values in computations.

Make sure returned values are initialized

See merge request !24

atksocket: make get_extents return parent extents by default

See merge request !23

Some methods do not have a way to notify that they have failed.
They should thus make sure that they set some value, rather than let them
uninitialized and thus random.

This is a follow-up for 9118d447 ("Make sure returned values are
initialized")

Make sure returned values are initialized

See merge request !22

Some methods do not have a way to notify that they have failed.
They should thus make sure that they set some value, rather than let them
uninitialized and thus random.

It allows to be sure that Orca will have a well-defined behavior rather
than possibly very erratic behavior.

The socket itself will usually just inherit the parent's extents, so this
makes a convenient good default.

As discussed on
https://mail.gnome.org/archives/gnome-accessibility-devel/2019-August/msg00001.html

These scroll the top-left of the accessible object.

Fixes #12

Also adding notes for ATK 2.33.1 that were included on their release
but not on any master commit.

Documentation and build fixes

See merge request !3

Meson can generate a compliant pkgconfig file for us, straight from the
library we just built, without using a template file.

Use a consistent, idiomatic syntax and coding style for the Meson build.

The order is:

  1. Name
  2. Arguments
  3. Description
  4. Returns
  5. Since
  6. Deprecated

Drop the number of unused symbol to zero.

There's no point in using the unsupported `@Since` syntax on every
virtual function, when the whole structure was added in the same ATK
version. We should annotate the structure instead.

Gtk-doc does not support a `@note` syntax, so we should use `**note**`
instead.

Gtk-doc does not support a `@Since` annotation for enumeration values, so
we make do with a plain text "Since: x.y" blurb.