Struct ArkUI_AccessibilityProviderCallbacks 

#[repr(C)]
pub struct ArkUI_AccessibilityProviderCallbacks {
    pub findAccessibilityNodeInfosById: Option<unsafe extern "C" fn(elementId: i64, mode: ArkUI_AccessibilitySearchMode, requestId: i32, elementList: *mut ArkUI_AccessibilityElementInfoList) -> i32>,
    pub findAccessibilityNodeInfosByText: Option<unsafe extern "C" fn(elementId: i64, text: *const c_char, requestId: i32, elementList: *mut ArkUI_AccessibilityElementInfoList) -> i32>,
    pub findFocusedAccessibilityNode: Option<unsafe extern "C" fn(elementId: i64, focusType: ArkUI_AccessibilityFocusType, requestId: i32, elementInfo: *mut ArkUI_AccessibilityElementInfo) -> i32>,
    pub findNextFocusAccessibilityNode: Option<unsafe extern "C" fn(elementId: i64, direction: ArkUI_AccessibilityFocusMoveDirection, requestId: i32, elementInfo: *mut ArkUI_AccessibilityElementInfo) -> i32>,
    pub executeAccessibilityAction: Option<unsafe extern "C" fn(elementId: i64, action: ArkUI_Accessibility_ActionType, actionArguments: *mut ArkUI_AccessibilityActionArguments, requestId: i32) -> i32>,
    pub clearFocusedFocusAccessibilityNode: Option<unsafe extern "C" fn() -> i32>,
    pub getAccessibilityNodeCursorPosition: Option<unsafe extern "C" fn(elementId: i64, requestId: i32, index: *mut i32) -> i32>,
}

Available on crate feature api-13 only.

Registers callbacks for the accessibility provider.

Available since API-level: 13

Fields

findAccessibilityNodeInfosById: Option<unsafe extern "C" fn(elementId: i64, mode: ArkUI_AccessibilitySearchMode, requestId: i32, elementList: *mut ArkUI_AccessibilityElementInfoList) -> i32>

Called to obtain element information based on a specified node.

Arguments

• elementId - Indicates the element ID.

• mode - Indicates accessibility search mode.

• requestId - Indicates the request ID.

• elementList - Indicates accessibility elementInfo list.

Returns

• Returns [ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL] if the operation is successful. Returns [ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER] if a parameter is incorrect.

findAccessibilityNodeInfosByText: Option<unsafe extern "C" fn(elementId: i64, text: *const c_char, requestId: i32, elementList: *mut ArkUI_AccessibilityElementInfoList) -> i32>

Called to obtain element information based on a specified node and text content.

Arguments

• elementId - Indicates the element ID.

• text - Indicates accessibility text.

• requestId - Indicates the request ID.

• elementList - Indicates accessibility elementInfo list.

Returns

• Returns [ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL] if the operation is successful. Returns [ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER] if a parameter is incorrect.

findFocusedAccessibilityNode: Option<unsafe extern "C" fn(elementId: i64, focusType: ArkUI_AccessibilityFocusType, requestId: i32, elementInfo: *mut ArkUI_AccessibilityElementInfo) -> i32>

Called to obtain focused element information based on a specified node.

Arguments

• elementId - Indicates the element ID.

• focusType - Indicates focus type.

• requestId - Indicates the request ID.

• elementInfo - Indicates accessibility elementInfo.

Returns

• Returns [ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL] if the operation is successful. Returns [ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER] if a parameter is incorrect.

findNextFocusAccessibilityNode: Option<unsafe extern "C" fn(elementId: i64, direction: ArkUI_AccessibilityFocusMoveDirection, requestId: i32, elementInfo: *mut ArkUI_AccessibilityElementInfo) -> i32>

Called to find the next focusable node based on the reference node.

Arguments

• elementId - Indicates the element ID.

• direction - Indicates direction.

• requestId - Indicates the request ID.

• elementInfo - Indicates accessibility elementInfo.

Returns

• Returns [ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL] if the operation is successful. Returns [ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER] if a parameter is incorrect.

executeAccessibilityAction: Option<unsafe extern "C" fn(elementId: i64, action: ArkUI_Accessibility_ActionType, actionArguments: *mut ArkUI_AccessibilityActionArguments, requestId: i32) -> i32>

Called to execute a specified action on a specified node.

Arguments

• elementId - Indicates the element ID.

• action - Indicates action.

• actionArguments - Indicates action arguments.

• requestId - Indicates the request ID.

Returns

• Returns [ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL] if the operation is successful. Returns [ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER] if a parameter is incorrect.

clearFocusedFocusAccessibilityNode: Option<unsafe extern "C" fn() -> i32>

Called to clear the focus state of the current focused node.

Returns

• Returns [ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL] if the operation is successful. Returns [ARKUI_ACCESSIBILITY_NATIVE_RESULT_FAILED] if the operation is failed.

getAccessibilityNodeCursorPosition: Option<unsafe extern "C" fn(elementId: i64, requestId: i32, index: *mut i32) -> i32>

Called to query the current cursor position of the specified node.

Arguments

• elementId - Indicates the element ID.

• requestId - Indicates the request ID.

• index - Indicates index.

Returns

• Returns [ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL] if the operation is successful. Returns [ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER] if a parameter is incorrect.

Trait Implementations

impl Clone for ArkUI_AccessibilityProviderCallbacks

fn clone(&self) -> ArkUI_AccessibilityProviderCallbacks

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ArkUI_AccessibilityProviderCallbacks

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Copy for ArkUI_AccessibilityProviderCallbacks