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a11y: Set an accessible role for GtkLevelBar

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Use the 'meter' role for GtkLevelBar, and set the
appropriate properties.

Update the docs and add a test.
This commit is contained in:
Matthias Clasen 2020-07-29 22:10:56 -04:00
parent c0de580d46
commit abf8cbeaea
5 changed files with 81 additions and 4 deletions
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5
docs/reference/gtk/section-accessibility.md
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@ -45,14 +45,13 @@ Each role name is part of the #GtkAccessibleRole enumeration.
| Role name | Description | Related GTK widget |
|-----------|-------------|--------------------|
| `ALERT` | A message with important information | - |
| `BUTTON` | A control that performs an action when pressed | #GtkButton, #GtkLinkButton, #GtkExpander |
| `CHECKBOX` | A control that has three possible value: `true`, `false`, or `undefined` | #GtkCheckButton |
| `COLUMNHEADER` | The header of a column in a list or grid | - |
| `COMBOBOX` | A control that can be expanded to show a list of possible values to select | #GtkComboBox |
| `DIALOG` | A dialog that prompts the user to enter information or require a response | #GtkDialog and subclasses |
| `IMG` | An image | #GtkImage, #GtkPicture |
| `LABEL` | A visible name or caption for a user interface component. | #GtkLabel |
| `LABEL` | A visible name or caption for a user interface component | #GtkLabel |
| `METER` | Represents a value within a known range | #GtkLevelBar |
| `PROGRESS_BAR` | An element that display progress | #GtkProgressBar |
| `RADIO` | A checkable input in a group of radio roles | #GtkRadioButton |
| `SCROLLBAR` | A graphical object controlling the scolling of content | #GtkScrollbar |

2
gtk/gtkenums.h
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@ -1194,7 +1194,7 @@ typedef enum {
* @GTK_ACCESSIBLE_ROLE_MAIN: Unused
* @GTK_ACCESSIBLE_ROLE_MARQUEE: Unused
* @GTK_ACCESSIBLE_ROLE_MATH: Unused
* @GTK_ACCESSIBLE_ROLE_METER: Unused
* @GTK_ACCESSIBLE_ROLE_METER: An element that represents a value within a known range.
* @GTK_ACCESSIBLE_ROLE_MENU: Unused
* @GTK_ACCESSIBLE_ROLE_MENU_BAR: Unused
* @GTK_ACCESSIBLE_ROLE_MENU_ITEM: Unused

27
gtk/gtklevelbar.c
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@ -116,6 +116,10 @@
*
* In horizontal orientation, the nodes are always arranged from left to right,
* regardless of text direction.
*
* # Accessibility
*
* GtkLevelBar uses the #GTK_ACCESSIBLE_ROLE_METER role.
*/
#include "config.h"
@ -1007,6 +1011,7 @@ gtk_level_bar_class_init (GtkLevelBarClass *klass)
gtk_widget_class_set_layout_manager_type (wclass, GTK_TYPE_BIN_LAYOUT);
gtk_widget_class_set_css_name (wclass, I_("levelbar"));
gtk_widget_class_set_accessible_role (wclass, GTK_ACCESSIBLE_ROLE_METER);
}
static void
@ -1041,6 +1046,12 @@ gtk_level_bar_init (GtkLevelBar *self)
update_mode_style_classes (self);
update_block_nodes (self);
update_level_style_classes (self);
gtk_accessible_update_property (GTK_ACCESSIBLE (self),
GTK_ACCESSIBLE_PROPERTY_VALUE_MAX, 1.0,
GTK_ACCESSIBLE_PROPERTY_VALUE_MIN, 0.0,
GTK_ACCESSIBLE_PROPERTY_VALUE_NOW, 0.0,
-1);
}
/**
@ -1163,6 +1174,12 @@ gtk_level_bar_set_min_value (GtkLevelBar *self,
update_block_nodes (self);
update_level_style_classes (self);
gtk_accessible_update_property (GTK_ACCESSIBLE (self),
GTK_ACCESSIBLE_PROPERTY_VALUE_MIN, self->min_value,
GTK_ACCESSIBLE_PROPERTY_VALUE_NOW, self->cur_value,
-1);
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_MIN_VALUE]);
}
@ -1194,6 +1211,12 @@ gtk_level_bar_set_max_value (GtkLevelBar *self,
gtk_level_bar_ensure_offsets_in_range (self);
update_block_nodes (self);
update_level_style_classes (self);
gtk_accessible_update_property (GTK_ACCESSIBLE (self),
GTK_ACCESSIBLE_PROPERTY_VALUE_MAX, self->max_value,
GTK_ACCESSIBLE_PROPERTY_VALUE_NOW, self->cur_value,
-1);
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_MAX_VALUE]);
}
@ -1216,6 +1239,10 @@ gtk_level_bar_set_value (GtkLevelBar *self,
gtk_level_bar_set_value_internal (self, value);
update_level_style_classes (self);
gtk_accessible_update_property (GTK_ACCESSIBLE (self),
GTK_ACCESSIBLE_PROPERTY_VALUE_NOW, self->cur_value,
-1);
}
/**

50
testsuite/a11y/levelbar.c Normal file
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@ -0,0 +1,50 @@
#include <gtk/gtk.h>
static void
level_bar_role (void)
{
GtkWidget *widget = gtk_level_bar_new ();
g_object_ref_sink (widget);
gtk_test_accessible_assert_role (widget, GTK_ACCESSIBLE_ROLE_METER);
g_object_unref (widget);
}
static void
level_bar_properties (void)
{
GtkWidget *widget = gtk_level_bar_new ();
g_object_ref_sink (widget);
gtk_test_accessible_assert_property (widget, GTK_ACCESSIBLE_PROPERTY_VALUE_MAX, 1.);
gtk_test_accessible_assert_property (widget, GTK_ACCESSIBLE_PROPERTY_VALUE_MIN, 0.);
gtk_test_accessible_assert_property (widget, GTK_ACCESSIBLE_PROPERTY_VALUE_NOW, 0.);
gtk_test_accessible_assert_property (widget, GTK_ACCESSIBLE_PROPERTY_VALUE_TEXT, NULL);
gtk_level_bar_set_max_value (GTK_LEVEL_BAR (widget), 100.0);
gtk_level_bar_set_min_value (GTK_LEVEL_BAR (widget), 10.0);
gtk_test_accessible_assert_property (widget, GTK_ACCESSIBLE_PROPERTY_VALUE_MAX, 100.0);
gtk_test_accessible_assert_property (widget, GTK_ACCESSIBLE_PROPERTY_VALUE_MIN, 10.0);
gtk_test_accessible_assert_property (widget, GTK_ACCESSIBLE_PROPERTY_VALUE_NOW, 10.0);
gtk_level_bar_set_value (GTK_LEVEL_BAR (widget), 40.0);
gtk_test_accessible_assert_property (widget, GTK_ACCESSIBLE_PROPERTY_VALUE_MAX, 100.0);
gtk_test_accessible_assert_property (widget, GTK_ACCESSIBLE_PROPERTY_VALUE_MIN, 10.0);
gtk_test_accessible_assert_property (widget, GTK_ACCESSIBLE_PROPERTY_VALUE_NOW, 40.0);
g_object_unref (widget);
}
int
main (int argc, char *argv[])
{
gtk_test_init (&argc, &argv, NULL);
g_test_add_func ("/a11y/levelbar/role", level_bar_role);
g_test_add_func ("/a11y/levelbar/properties", level_bar_properties);
return g_test_run ();
}

1
testsuite/a11y/meson.build
View File

@ -18,6 +18,7 @@ tests = [
{ 'name': 'expander' },
{ 'name': 'image' },
{ 'name': 'label' },
{ 'name': 'levelbar' },
{ 'name': 'passwordentry' },
{ 'name': 'progressbar' },
{ 'name': 'scrollbar' },