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a11y: Add the ARIA ontology
Add a helper function to find out which roles are superclasses of each other. This isn't used yet (apart from the existing use for ranges), but it might be in the future.
This commit is contained in:
Matthias Clasen
parent
315ded687c
commit
838c51cc92
@ -855,6 +855,113 @@ gtk_accessible_role_to_name (GtkAccessibleRole role,
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return role_names[role];
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}
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static struct {
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GtkAccessibleRole superclass;
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GtkAccessibleRole role;
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} superclasses[] = {
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{ GTK_ACCESSIBLE_ROLE_COMMAND, GTK_ACCESSIBLE_ROLE_BUTTON },
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{ GTK_ACCESSIBLE_ROLE_COMMAND, GTK_ACCESSIBLE_ROLE_LINK },
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{ GTK_ACCESSIBLE_ROLE_COMMAND, GTK_ACCESSIBLE_ROLE_MENU_ITEM },
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{ GTK_ACCESSIBLE_ROLE_COMPOSITE, GTK_ACCESSIBLE_ROLE_GRID },
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{ GTK_ACCESSIBLE_ROLE_COMPOSITE, GTK_ACCESSIBLE_ROLE_SELECT },
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{ GTK_ACCESSIBLE_ROLE_COMPOSITE, GTK_ACCESSIBLE_ROLE_SPIN_BUTTON },
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{ GTK_ACCESSIBLE_ROLE_COMPOSITE, GTK_ACCESSIBLE_ROLE_TAB_LIST },
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{ GTK_ACCESSIBLE_ROLE_INPUT, GTK_ACCESSIBLE_ROLE_CHECKBOX },
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{ GTK_ACCESSIBLE_ROLE_INPUT, GTK_ACCESSIBLE_ROLE_COMBO_BOX },
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{ GTK_ACCESSIBLE_ROLE_INPUT, GTK_ACCESSIBLE_ROLE_OPTION },
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{ GTK_ACCESSIBLE_ROLE_INPUT, GTK_ACCESSIBLE_ROLE_RADIO },
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{ GTK_ACCESSIBLE_ROLE_INPUT, GTK_ACCESSIBLE_ROLE_SLIDER },
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{ GTK_ACCESSIBLE_ROLE_INPUT, GTK_ACCESSIBLE_ROLE_SPIN_BUTTON },
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{ GTK_ACCESSIBLE_ROLE_INPUT, GTK_ACCESSIBLE_ROLE_TEXT_BOX },
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{ GTK_ACCESSIBLE_ROLE_LANDMARK, GTK_ACCESSIBLE_ROLE_BANNER },
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{ GTK_ACCESSIBLE_ROLE_LANDMARK, GTK_ACCESSIBLE_ROLE_FORM },
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{ GTK_ACCESSIBLE_ROLE_LANDMARK, GTK_ACCESSIBLE_ROLE_MAIN },
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{ GTK_ACCESSIBLE_ROLE_LANDMARK, GTK_ACCESSIBLE_ROLE_NAVIGATION },
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{ GTK_ACCESSIBLE_ROLE_LANDMARK, GTK_ACCESSIBLE_ROLE_REGION },
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{ GTK_ACCESSIBLE_ROLE_LANDMARK, GTK_ACCESSIBLE_ROLE_SEARCH },
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{ GTK_ACCESSIBLE_ROLE_RANGE, GTK_ACCESSIBLE_ROLE_METER },
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{ GTK_ACCESSIBLE_ROLE_RANGE, GTK_ACCESSIBLE_ROLE_PROGRESS_BAR },
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{ GTK_ACCESSIBLE_ROLE_RANGE, GTK_ACCESSIBLE_ROLE_SCROLLBAR },
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{ GTK_ACCESSIBLE_ROLE_RANGE, GTK_ACCESSIBLE_ROLE_SLIDER },
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{ GTK_ACCESSIBLE_ROLE_RANGE, GTK_ACCESSIBLE_ROLE_SPIN_BUTTON },
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{ GTK_ACCESSIBLE_ROLE_SECTION, GTK_ACCESSIBLE_ROLE_ALERT },
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{ GTK_ACCESSIBLE_ROLE_SECTION, GTK_ACCESSIBLE_ROLE_CAPTION },
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{ GTK_ACCESSIBLE_ROLE_SECTION, GTK_ACCESSIBLE_ROLE_CELL },
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{ GTK_ACCESSIBLE_ROLE_SECTION, GTK_ACCESSIBLE_ROLE_GROUP },
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{ GTK_ACCESSIBLE_ROLE_SECTION, GTK_ACCESSIBLE_ROLE_IMG },
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{ GTK_ACCESSIBLE_ROLE_SECTION, GTK_ACCESSIBLE_ROLE_LANDMARK },
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{ GTK_ACCESSIBLE_ROLE_SECTION, GTK_ACCESSIBLE_ROLE_LIST },
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{ GTK_ACCESSIBLE_ROLE_SECTION, GTK_ACCESSIBLE_ROLE_LIST_ITEM },
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{ GTK_ACCESSIBLE_ROLE_SECTION, GTK_ACCESSIBLE_ROLE_LOG },
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{ GTK_ACCESSIBLE_ROLE_SECTION, GTK_ACCESSIBLE_ROLE_MARQUEE },
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{ GTK_ACCESSIBLE_ROLE_SECTION, GTK_ACCESSIBLE_ROLE_MATH },
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{ GTK_ACCESSIBLE_ROLE_SECTION, GTK_ACCESSIBLE_ROLE_NOTE },
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{ GTK_ACCESSIBLE_ROLE_SECTION, GTK_ACCESSIBLE_ROLE_STATUS },
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{ GTK_ACCESSIBLE_ROLE_SECTION, GTK_ACCESSIBLE_ROLE_TABLE },
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{ GTK_ACCESSIBLE_ROLE_SECTION, GTK_ACCESSIBLE_ROLE_TAB_PANEL },
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{ GTK_ACCESSIBLE_ROLE_SECTION, GTK_ACCESSIBLE_ROLE_TIME },
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{ GTK_ACCESSIBLE_ROLE_SECTION, GTK_ACCESSIBLE_ROLE_TOOLTIP },
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{ GTK_ACCESSIBLE_ROLE_SECTION_HEAD, GTK_ACCESSIBLE_ROLE_COLUMN_HEADER },
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{ GTK_ACCESSIBLE_ROLE_SECTION_HEAD, GTK_ACCESSIBLE_ROLE_HEADING },
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{ GTK_ACCESSIBLE_ROLE_SECTION_HEAD, GTK_ACCESSIBLE_ROLE_ROW_HEADER },
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{ GTK_ACCESSIBLE_ROLE_SECTION_HEAD, GTK_ACCESSIBLE_ROLE_TAB },
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{ GTK_ACCESSIBLE_ROLE_SELECT, GTK_ACCESSIBLE_ROLE_LIST_BOX },
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{ GTK_ACCESSIBLE_ROLE_SELECT, GTK_ACCESSIBLE_ROLE_MENU },
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{ GTK_ACCESSIBLE_ROLE_SELECT, GTK_ACCESSIBLE_ROLE_RADIO_GROUP },
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{ GTK_ACCESSIBLE_ROLE_SELECT, GTK_ACCESSIBLE_ROLE_TREE },
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{ GTK_ACCESSIBLE_ROLE_STRUCTURE, GTK_ACCESSIBLE_ROLE_APPLICATION },
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{ GTK_ACCESSIBLE_ROLE_STRUCTURE, GTK_ACCESSIBLE_ROLE_DOCUMENT },
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{ GTK_ACCESSIBLE_ROLE_STRUCTURE, GTK_ACCESSIBLE_ROLE_GENERIC },
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{ GTK_ACCESSIBLE_ROLE_STRUCTURE, GTK_ACCESSIBLE_ROLE_PRESENTATION },
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{ GTK_ACCESSIBLE_ROLE_STRUCTURE, GTK_ACCESSIBLE_ROLE_RANGE },
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{ GTK_ACCESSIBLE_ROLE_STRUCTURE, GTK_ACCESSIBLE_ROLE_ROW_GROUP },
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{ GTK_ACCESSIBLE_ROLE_STRUCTURE, GTK_ACCESSIBLE_ROLE_SECTION },
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{ GTK_ACCESSIBLE_ROLE_STRUCTURE, GTK_ACCESSIBLE_ROLE_SECTION_HEAD },
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{ GTK_ACCESSIBLE_ROLE_STRUCTURE, GTK_ACCESSIBLE_ROLE_SEPARATOR },
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{ GTK_ACCESSIBLE_ROLE_WIDGET, GTK_ACCESSIBLE_ROLE_COMMAND },
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{ GTK_ACCESSIBLE_ROLE_WIDGET, GTK_ACCESSIBLE_ROLE_COMPOSITE },
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{ GTK_ACCESSIBLE_ROLE_WIDGET, GTK_ACCESSIBLE_ROLE_GRID_CELL },
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{ GTK_ACCESSIBLE_ROLE_WIDGET, GTK_ACCESSIBLE_ROLE_INPUT },
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{ GTK_ACCESSIBLE_ROLE_WIDGET, GTK_ACCESSIBLE_ROLE_PROGRESS_BAR },
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{ GTK_ACCESSIBLE_ROLE_WIDGET, GTK_ACCESSIBLE_ROLE_ROW },
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{ GTK_ACCESSIBLE_ROLE_WIDGET, GTK_ACCESSIBLE_ROLE_SCROLLBAR },
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{ GTK_ACCESSIBLE_ROLE_WIDGET, GTK_ACCESSIBLE_ROLE_SEPARATOR },
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{ GTK_ACCESSIBLE_ROLE_WIDGET, GTK_ACCESSIBLE_ROLE_TAB },
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{ GTK_ACCESSIBLE_ROLE_WINDOW, GTK_ACCESSIBLE_ROLE_DIALOG },
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{ GTK_ACCESSIBLE_ROLE_CHECKBOX, GTK_ACCESSIBLE_ROLE_SWITCH },
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{ GTK_ACCESSIBLE_ROLE_GRID_CELL, GTK_ACCESSIBLE_ROLE_COLUMN_HEADER },
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{ GTK_ACCESSIBLE_ROLE_GRID_CELL, GTK_ACCESSIBLE_ROLE_ROW_HEADER },
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{ GTK_ACCESSIBLE_ROLE_MENU_ITEM, GTK_ACCESSIBLE_ROLE_MENU_ITEM_CHECKBOX },
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{ GTK_ACCESSIBLE_ROLE_MENU_ITEM_CHECKBOX, GTK_ACCESSIBLE_ROLE_MENU_ITEM_RADIO },
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{ GTK_ACCESSIBLE_ROLE_TREE, GTK_ACCESSIBLE_ROLE_TREE_GRID },
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{ GTK_ACCESSIBLE_ROLE_CELL, GTK_ACCESSIBLE_ROLE_COLUMN_HEADER },
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{ GTK_ACCESSIBLE_ROLE_CELL, GTK_ACCESSIBLE_ROLE_GRID_CELL },
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{ GTK_ACCESSIBLE_ROLE_CELL, GTK_ACCESSIBLE_ROLE_ROW_HEADER },
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{ GTK_ACCESSIBLE_ROLE_GROUP, GTK_ACCESSIBLE_ROLE_ROW },
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{ GTK_ACCESSIBLE_ROLE_GROUP, GTK_ACCESSIBLE_ROLE_SELECT },
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{ GTK_ACCESSIBLE_ROLE_GROUP, GTK_ACCESSIBLE_ROLE_TOOLBAR },
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{ GTK_ACCESSIBLE_ROLE_LIST, GTK_ACCESSIBLE_ROLE_FEED },
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{ GTK_ACCESSIBLE_ROLE_LIST_ITEM, GTK_ACCESSIBLE_ROLE_TREE_ITEM },
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{ GTK_ACCESSIBLE_ROLE_TABLE, GTK_ACCESSIBLE_ROLE_GRID },
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{ GTK_ACCESSIBLE_ROLE_ALERT, GTK_ACCESSIBLE_ROLE_ALERT_DIALOG },
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{ GTK_ACCESSIBLE_ROLE_STATUS, GTK_ACCESSIBLE_ROLE_TIMER },
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{ GTK_ACCESSIBLE_ROLE_DIALOG, GTK_ACCESSIBLE_ROLE_ALERT_DIALOG },
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};
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gboolean
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gtk_accessible_role_is_subclass (GtkAccessibleRole role,
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GtkAccessibleRole superclass)
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{
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for (unsigned int i = 0; i < G_N_ELEMENTS (superclasses); i++)
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{
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if (superclasses[i].role == role &&
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superclasses[i].superclass == superclass)
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return TRUE;
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}
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return FALSE;
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}
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/*< private >
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* gtk_accessible_role_is_range_subclass:
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* @role: a `GtkAccessibleRole`
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@ -867,19 +974,7 @@ gtk_accessible_role_to_name (GtkAccessibleRole role,
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gboolean
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gtk_accessible_role_is_range_subclass (GtkAccessibleRole role)
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{
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/* Same trick as in gtkatcontext.c */
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switch ((int) role)
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{
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case GTK_ACCESSIBLE_ROLE_METER:
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case GTK_ACCESSIBLE_ROLE_PROGRESS_BAR:
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case GTK_ACCESSIBLE_ROLE_SCROLLBAR:
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case GTK_ACCESSIBLE_ROLE_SLIDER:
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case GTK_ACCESSIBLE_ROLE_SPIN_BUTTON:
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return TRUE;
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default:
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break;
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}
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return FALSE;
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return gtk_accessible_role_is_subclass (role, GTK_ACCESSIBLE_ROLE_RANGE);
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}
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/* < private >
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@ -57,6 +57,9 @@ const char * gtk_accessible_role_to_name (GtkAccessibleRole role,
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gboolean gtk_accessible_role_is_range_subclass (GtkAccessibleRole role);
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gboolean gtk_accessible_role_is_subclass (GtkAccessibleRole role,
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GtkAccessibleRole superclass);
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gboolean gtk_accessible_role_is_abstract (GtkAccessibleRole role);
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/* < private >
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