This commit implements the needed machinery for GtkWidget
to build it's composite content from GtkBuilder XML and
adds the following API:
o gtk_widget_init_template()
An api to be called in instance initializers of any
GtkWidget subclass that uses template XML to build it's components.
o gtk_widget_class_set_template()
API to associate GtkBuilder XML to a given GtkWidget subclass
o gtk_widget_class_automate_child()
API to declare an object built by GtkBuilder to be associated
with an instance structure offset and automatically set.
o gtk_widget_get_automated_child()
API for bindings to fetch a child declared to be automated by
gtk_widget_class_automate_child(), for the case where bindings
do not generate GObjects under the hood and cannot use structure
offsets to resolve composite object pointers.
o gtk_widget_class_declare_callback[s]()
Declare static functions to be used in signal callbacks from
a given class's template XML
o gtk_widget_class_set_connect_func()
API for bindings to override the signal connection machinery
for a given GtkWidget derived class.
This patch allows properties of type G_PARAM_CONSTRUCT to be set
on internal children or explicitly constructed objects (built
with <constructor>) while previously, G_PARAM_CONSTRUCT properties
being set on already constructed objects would result in an misinformed
warning that "construct-only properties cannot be set".
G_PARAM_CONSTRUCT_ONLY properties are still refused as parameters
to already constructed children.
This adds the definition of the <template> tag with some documentation
on the variant of the format.
_gtk_builder_extend_with_template() is to be used while GtkContainer
builds from composite templates. A couple of error codes are also added
to handle a few new possible failure cases.
DTD Files gtkbuilder.rnc and gtkbuilder.rng have been updated to include
the new <template> tag and it's attributes.
In preperation for composite objects, for better encapsulation
the following APIs are added to allow handling of signals declared
in the XML with callbacks declared statically.
o gtk_builder_add_callback_symbol[s]()
Adds a symbol to the internal symbol hash
o gtk_builder_lookup_symbol()
Looks up a symbol, exposed in case added symbols are used
in conjunction with gtk_builder_connect_signals_full()
The default implementation of gtk_builder_connect_signals() now
does not have a strong requirement on GModule (or a strong requirement
on symbols being declared in the global namespace). Instead GModule
is used as a fallback in the case that symbols are not declared
explicitly.
Some utilities such as GIR and gtk-doc, initialize class vtables without
initializing GTK+, with composite templates accessing resources this
causes a hand full of unneeded warnings.
The workaround for now is the use a private function _gtk_ensure_resources()
which is both called while initializing GTK+, and at the beginning of
gtk_widget_class_set_template_from_resource() (the private function
ensures that the resource will only ever be registered GOnce).
Deprecate gtk_widget_push_composite_child, gtk_widget_pop_composite_child,
gtk_widget_set_composite_name, gtk_widget_get_composite_name.
This API is just bloat and was never useful, this patch deprecates
it and removes all internal calls to the composite child APIs
The is_modifier field is supposed to be set if the key
would act as a modifier, not if any modifiers are currently
active. To fix this, introduce a private
_gdk_wayland_keymap_key_is_modifier function.
At the same time, make the hardware_keycode field in key
events actually contain the hardware keycode, not a copy
of the keyval.
When the GtkActivatable sets the related action, the activatable
properties are sync'ed. In this case the null check is important
to avoid updating from a NULL action.
While GtkRecentChooser implementations accept for the "filter" property
to unset the current filter, the API fires an unneeded assertion.
This patch removes the assertion.
The test case uses a weak ref to assert objects can finalize,
and then spins the main loop shortly after finalizing to assert
that the finalized object did not leak GSources into the main context
causing latent crashes.
We always emit direction-changed when we get a new keymap, but
for state changes, we compare old and new direction and only
emit the signal when the direction actually changes.
