Add the accessible-expandable property

api/cpp/include/slint-testing.h

@@ -382,6 +382,19 @@ public:
         return std::nullopt;
     }
 
+    /// Returns the accessible-expandable of that element, if any.
+    std::optional<bool> accessible_expandable() const
+    {
+        if (auto result = get_accessible_string_property(
+                    cbindgen_private::AccessibleStringProperty::Expandable)) {
+            if (*result == "true")
+                return true;
+            else if (*result == "false")
+                return false;
+        }
+        return std::nullopt;
+    }
+
     /// Sets the accessible-value of that element.
     ///
     /// Setting the value will invoke the `accessible-action-set-value` callback.

docs/astro/src/content/docs/reference/common.mdx

@@ -207,6 +207,11 @@ The description for the current element.
 Whether the element is enabled or not. This maps to the "enabled" state of most widgets. (default value: `true`)
 </SlintProperty>
 
+### accessible-expandable
+<SlintProperty typeName="bool" propName="accessible-expandable" default="false">
+Whether the element can be expanded or not.
+</SlintProperty>
+
 ### accessible-label
 <SlintProperty typeName="string" propName="accessible-label" default='""'>
 The label for an interactive element. (default value: empty for most elements, or the value of the `text` property for Text elements)

internal/backends/qt/qt_accessible.rs

@@ -30,6 +30,7 @@ const VALUE_MINIMUM: u32 = CHECKED + 1;
 const VALUE_MAXIMUM: u32 = VALUE_MINIMUM + 1;
 const VALUE_STEP: u32 = VALUE_MAXIMUM + 1;
 const CHECKABLE: u32 = VALUE_STEP + 1;
+const EXPANDABLE: u32 = CHECKABLE + 1;
 
 pub struct AccessibleItemPropertiesTracker {
     obj: *mut c_void,
@@ -208,6 +209,7 @@ impl SlintAccessibleItemData {
             if let Some(item_rc) = item.upgrade() {
                 item_rc.accessible_string_property(AccessibleStringProperty::Checkable);
                 item_rc.accessible_string_property(AccessibleStringProperty::Checked);
+                item_rc.accessible_string_property(AccessibleStringProperty::Expandable);
             }
         });
     }
@@ -267,6 +269,7 @@ cpp! {{
     const uint32_t VALUE_MAXIMUM { VALUE_MINIMUM + 1 };
     const uint32_t VALUE_STEP { VALUE_MAXIMUM + 1 };
     const uint32_t CHECKABLE { VALUE_STEP + 1 };
+    const uint32_t EXPANDABLE { CHECKABLE + 1 };
 
     // ------------------------------------------------------------------------------
     // Helper:
@@ -362,6 +365,7 @@ cpp! {{
                     VALUE_MAXIMUM => item.accessible_string_property(AccessibleStringProperty::ValueMaximum),
                     VALUE_STEP => item.accessible_string_property(AccessibleStringProperty::ValueStep),
                     CHECKABLE => item.accessible_string_property(AccessibleStringProperty::Checkable),
+                    EXPANDABLE => item.accessible_string_property(AccessibleStringProperty::Expandable),
                     _ => None,
                 };
                 if let Some(string) = string {
@@ -621,6 +625,7 @@ cpp! {{
             state.focused = has_focus_delegation;
             state.checked = (checked == "true") ? 1 : 0;
             state.checkable = (item_string_property(m_data, CHECKABLE) == "true") ? 1 : 0;
+            state.expandable = (item_string_property(m_data, EXPANDABLE) == "true") ? 1 : 0;
             return state; /* FIXME */
         }
 

internal/backends/testing/search_api.rs

@@ -647,6 +647,17 @@ impl ElementHandle {
         })
     }
 
+    /// Returns the value of the `accessible-expandable` property, if present
+    pub fn accessible_expandable(&self) -> Option<bool> {
+        if self.element_index != 0 {
+            return None;
+        }
+        self.item
+            .upgrade()
+            .and_then(|item| item.accessible_string_property(AccessibleStringProperty::Expandable))
+            .and_then(|item| item.parse().ok())
+    }
+
     /// Returns the size of the element in logical pixels. This corresponds to the value of the `width` and
     /// `height` properties in Slint code. Returns a zero size if the element is not valid.
     pub fn size(&self) -> i_slint_core::api::LogicalSize {

internal/compiler/typeregister.rs

@@ -197,6 +197,7 @@ pub fn reserved_accessibility_properties() -> impl Iterator<Item = (&'static str
         ("accessible-delegate-focus", Type::Int32),
         ("accessible-description", Type::String),
         ("accessible-enabled", Type::Bool),
+        ("accessible-expandable", Type::Bool),
         ("accessible-label", Type::String),
         ("accessible-value", Type::String),
         ("accessible-value-maximum", Type::Float32),

internal/compiler/widgets/cosmic/combobox.slint

@@ -26,6 +26,7 @@ export component ComboBox {
     forward-focus: base;
     accessible-role: combobox;
     accessible-enabled: root.enabled;
+    accessible-expandable: true;
     accessible-value <=> root.current-value;
 
     states [

internal/compiler/widgets/cupertino/combobox.slint

@@ -26,6 +26,7 @@ export component ComboBox {
     forward-focus: base;
     accessible-role: combobox;
     accessible-enabled: root.enabled;
+    accessible-expandable: true;
     accessible-value <=> root.current-value;
 
     states [

internal/compiler/widgets/fluent/combobox.slint

@@ -26,6 +26,7 @@ export component ComboBox {
 
     accessible-role: combobox;
     accessible-enabled: root.enabled;
+    accessible-expandable: true;
     accessible-value <=> root.current-value;
 
     states [

internal/compiler/widgets/material/combobox.slint

@@ -25,6 +25,7 @@ export component ComboBox {
     forward-focus: base;
     accessible-role: combobox;
     accessible-enabled: root.enabled;
+    accessible-expandable: true;
     accessible-value <=> root.current-value;
 
     states [

internal/compiler/widgets/qt/combobox.slint

@@ -15,6 +15,7 @@ export component ComboBox {
 
     accessible-role: combobox;
     accessible-enabled: root.enabled;
+    accessible-expandable: true;
     accessible-value <=> root.current-value;
     forward-focus: base;
 

internal/core/accessibility.rs

@@ -17,6 +17,7 @@ pub enum AccessibleStringProperty {
     DelegateFocus,
     Description,
     Enabled,
+    Expandable,
     ItemCount,
     ItemIndex,
     ItemSelectable,

tests/cases/widgets/combobox.slint

@@ -45,6 +45,7 @@ assert_eq!(instance.get_has_focus(), false);
 
 let mut combobox_search = slint_testing::ElementHandle::find_by_element_id(&instance, "TestCase::box");
 let combobox = combobox_search.next().unwrap();
+assert_eq!(combobox.accessible_expandable(), Some(true));
 assert_eq!(combobox.accessible_value(), Some(SharedString::from("Aaa")));
 
 // Change the index programmatically