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Expose tree item selection to macOS accessibility - #21598
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TreeViewItemAutomationPeer implements ISelectionItemProvider, and AvnAccessibilityElement maps setAccessibilitySelected to it, so AX clients can select a TreeViewItem.
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You can test this PR using the following package version. |
MrJul
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TreeViewItemAutomationPeer implements ISelectionItemProvider, and AvnAccessibilityElement maps setAccessibilitySelected to it, so AX clients can select a TreeViewItem.
MrJul
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backported-12.0.x
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backport-candidate-12.0.x
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What does the pull request do?
Lets macOS accessibility select a TreeViewItem, so AX clients can set a tree item's selected state via
setAccessibilitySelected.What is the current behavior?
TreeViewItemAutomationPeerdoes not implementISelectionItemProvider, and the macOS peer has nosetAccessibilitySelected:, so a tree item exposes no selection to AX clients.What is the updated/expected behavior with this PR?
TreeViewItemAutomationPeerimplementsISelectionItemProvider, andAvnAccessibilityElementroutessetAccessibilitySelected:to it, so AX clients can read and set a tree item's selection.How was the solution implemented (if it's not obvious)?
TreeViewItemAutomationPeermapsIsSelected/Select/SelectionContainerto theTreeViewItemand its owningTreeView. The native peer exposes aSelectionItemProvider_Selectbridge method, andAvnAccessibilityElementimplementssetAccessibilitySelected:along with the matchingisAccessibilitySelectorAllowed:case.Breaking changes
None.