diff options
author | Emmanuele Bassi <ebassi@gnome.org> | 2020-11-10 14:08:16 +0000 |
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committer | Emmanuele Bassi <ebassi@gnome.org> | 2020-11-10 14:31:56 +0000 |
commit | 6af89e90348ae83d1d88fbf094660205fa45989f (patch) | |
tree | 2f998d09d4c8705468611b00ab68174d1001c490 /gtk/gtkaccessiblevalue.c | |
parent | 1bdc8b90618b059534d447912c09c11f6cf961ab (diff) | |
download | gtk+-6af89e90348ae83d1d88fbf094660205fa45989f.tar.gz |
a11y: Add GValue initializers for accessible attributes
Consumers of the GValue-based API for GtkAccessible need to have a way
to initialize the GValue with the correct type for the given attribute.
Diffstat (limited to 'gtk/gtkaccessiblevalue.c')
-rw-r--r-- | gtk/gtkaccessiblevalue.c | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/gtk/gtkaccessiblevalue.c b/gtk/gtkaccessiblevalue.c index c459067812..ae9a0626b4 100644 --- a/gtk/gtkaccessiblevalue.c +++ b/gtk/gtkaccessiblevalue.c @@ -641,6 +641,7 @@ typedef struct { GCallback ctor; GCallback getter; GCallback parser; + GCallback init_value; } GtkAccessibleCollect; static const GtkAccessibleCollect collect_states[] = { @@ -676,6 +677,7 @@ static const GtkAccessibleCollect collect_states[] = { .ctor = (GCallback) gtk_invalid_accessible_value_new, .getter = (GCallback) gtk_invalid_accessible_value_get, .parser = (GCallback) gtk_invalid_accessible_value_parse, + .init_value = (GCallback) gtk_invalid_accessible_value_init_value, }, [GTK_ACCESSIBLE_STATE_PRESSED] = { .value = GTK_ACCESSIBLE_STATE_PRESSED, @@ -698,6 +700,7 @@ static const GtkAccessibleCollect collect_props[] = { .ctor = (GCallback) gtk_autocomplete_accessible_value_new, .getter = (GCallback) gtk_autocomplete_accessible_value_get, .parser = (GCallback) gtk_autocomplete_accessible_value_parse, + .init_value = (GCallback) gtk_autocomplete_accessible_value_init_value, }, [GTK_ACCESSIBLE_PROPERTY_DESCRIPTION] = { .value = GTK_ACCESSIBLE_PROPERTY_DESCRIPTION, @@ -750,6 +753,7 @@ static const GtkAccessibleCollect collect_props[] = { .ctor = (GCallback) gtk_orientation_accessible_value_new, .getter = (GCallback) gtk_orientation_accessible_value_get, .parser = (GCallback) gtk_orientation_accessible_value_parse, + .init_value = (GCallback) gtk_orientation_accessible_value_init_value, }, [GTK_ACCESSIBLE_PROPERTY_PLACEHOLDER] = { .value = GTK_ACCESSIBLE_PROPERTY_PLACEHOLDER, @@ -778,6 +782,7 @@ static const GtkAccessibleCollect collect_props[] = { .ctor = (GCallback) gtk_sort_accessible_value_new, .getter = (GCallback) gtk_sort_accessible_value_get, .parser = (GCallback) gtk_sort_accessible_value_parse, + .init_value = (GCallback) gtk_sort_accessible_value_init_value, }, [GTK_ACCESSIBLE_PROPERTY_VALUE_MAX] = { .value = GTK_ACCESSIBLE_PROPERTY_VALUE_MAX, @@ -907,6 +912,7 @@ typedef GtkAccessibleValue * (* GtkAccessibleValueRefListCtor) (GList *value); typedef GtkAccessibleValue * (* GtkAccessibleValueEnumParser) (const char *str, gsize len, GError **error); +typedef void (* GtkAccessibleValueEnumInit) (GValue *value); /*< private > * gtk_accessible_value_get_default_for_state: @@ -1099,6 +1105,8 @@ gtk_accessible_value_collect_valist (const GtkAccessibleCollect *cstate, { if (value != NULL) res = gtk_reference_accessible_value_new (value); + else + res = gtk_undefined_accessible_value_new (); } else { @@ -1448,6 +1456,75 @@ gtk_accessible_value_parse (const GtkAccessibleCollect *cstate, return res; } + +static void +gtk_accessible_attribute_init_value (const GtkAccessibleCollect *cstate, + GValue *value) +{ + GtkAccessibleCollectType ctype = cstate->ctype; + gboolean collects_undef = (ctype & GTK_ACCESSIBLE_COLLECT_UNDEFINED) != 0; + + ctype &= (GTK_ACCESSIBLE_COLLECT_UNDEFINED - 1); + + /* Tristate values include "undefined" by definition */ + if (ctype == GTK_ACCESSIBLE_COLLECT_TRISTATE) + collects_undef = TRUE; + + switch (ctype) + { + case GTK_ACCESSIBLE_COLLECT_BOOLEAN: + { + if (collects_undef) + g_value_init (value, G_TYPE_INT); + else + g_value_init (value, G_TYPE_BOOLEAN); + } + break; + + case GTK_ACCESSIBLE_COLLECT_TRISTATE: + g_value_init (value, GTK_TYPE_ACCESSIBLE_TRISTATE); + break; + + case GTK_ACCESSIBLE_COLLECT_TOKEN: + if (cstate->init_value != NULL) + { + GtkAccessibleValueEnumInit init_value = + (GtkAccessibleValueEnumInit) cstate->init_value; + + (* init_value) (value); + } + else + g_value_init (value, G_TYPE_INT); + break; + + case GTK_ACCESSIBLE_COLLECT_INTEGER: + g_value_init (value, G_TYPE_INT); + break; + + case GTK_ACCESSIBLE_COLLECT_NUMBER: + g_value_init (value, G_TYPE_DOUBLE); + break; + + case GTK_ACCESSIBLE_COLLECT_STRING: + g_value_init (value, G_TYPE_STRING); + break; + + case GTK_ACCESSIBLE_COLLECT_REFERENCE: + g_value_init (value, GTK_TYPE_ACCESSIBLE); + break; + + case GTK_ACCESSIBLE_COLLECT_REFERENCE_LIST: + g_value_init (value, G_TYPE_POINTER); + break; + + case GTK_ACCESSIBLE_COLLECT_UNDEFINED: + case GTK_ACCESSIBLE_COLLECT_INVALID: + default: + g_assert_not_reached (); + break; + } +} + /*< private > * gtk_accessible_value_collect_for_state: * @state: a #GtkAccessibleState @@ -1517,6 +1594,27 @@ gtk_accessible_value_parse_for_state (GtkAccessibleState state, return gtk_accessible_value_parse (cstate, str, len, error); } +/** + * gtk_accessible_state_init_value: + * @state: a #GtkAccessibleState + * @value: an uninitialized #GValue + * + * Initializes @value with the appropriate type for the @state. + * + * This function is mostly meant for language bindings, in conjunction + * with gtk_accessible_update_relation_state(). + */ +void +gtk_accessible_state_init_value (GtkAccessibleState state, + GValue *value) +{ + const GtkAccessibleCollect *cstate = &collect_states[state]; + + g_return_if_fail (state <= GTK_ACCESSIBLE_STATE_SELECTED); + + gtk_accessible_attribute_init_value (cstate, value); +} + /*< private > * gtk_accessible_value_get_default_for_property: * @property: a #GtkAccessibleProperty @@ -1647,6 +1745,27 @@ gtk_accessible_value_parse_for_property (GtkAccessibleProperty property, return gtk_accessible_value_parse (cstate, str, len, error); } +/** + * gtk_accessible_property_init_value: + * @property: a #GtkAccessibleProperty + * @value: an uninitialized #GValue + * + * Initializes @value with the appropriate type for the @property. + * + * This function is mostly meant for language bindings, in conjunction + * with gtk_accessible_update_property_value(). + */ +void +gtk_accessible_property_init_value (GtkAccessibleProperty property, + GValue *value) +{ + const GtkAccessibleCollect *cstate = &collect_props[property]; + + g_return_if_fail (property <= GTK_ACCESSIBLE_PROPERTY_VALUE_TEXT); + + gtk_accessible_attribute_init_value (cstate, value); +} + /*< private > * gtk_accessible_value_get_default_for_relation: * @relation: a #GtkAccessibleRelation @@ -1769,4 +1888,25 @@ gtk_accessible_value_parse_for_relation (GtkAccessibleRelation relation, return gtk_accessible_value_parse (cstate, str, len, error); } +/** + * gtk_accessible_relation_init_value: + * @relation: a #GtkAccessibleRelation + * @value: an uninitialized #GValue + * + * Initializes @value with the appropriate type for the @relation. + * + * This function is mostly meant for language bindings, in conjunction + * with gtk_accessible_update_relation_value(). + */ +void +gtk_accessible_relation_init_value (GtkAccessibleRelation relation, + GValue *value) +{ + const GtkAccessibleCollect *cstate = &collect_rels[relation]; + + g_return_if_fail (relation <= GTK_ACCESSIBLE_RELATION_SET_SIZE); + + gtk_accessible_attribute_init_value (cstate, value); +} + /* }}} */ |