arkui_sys::native_interface_accessibility

Struct ArkUI_AccessibilityProviderCallbacks

Source 
#[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.
Expand description

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.

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