feat: Add role for terminals (#282)

common/src/lib.rs

@@ -249,6 +249,11 @@ pub enum Role {
     /// `TableView` and its subclasses, so they can be exposed correctly
     /// on certain platforms.
     ListGrid,
+
+    /// This is just like a multi-line document, but signals that assistive
+    /// technologies should implement behavior specific to a VT-100-style
+    /// terminal.
+    Terminal,
 }
 
 impl Default for Role {

consumer/src/text.rs

@@ -838,7 +838,7 @@ impl<'a> Node<'a> {
     pub fn supports_text_ranges(&self) -> bool {
         matches!(
             self.role(),
-            Role::StaticText | Role::TextField | Role::Document | Role::SpinButton
+            Role::StaticText | Role::TextField | Role::Document | Role::SpinButton | Role::Terminal
         ) && self.inline_text_boxes().next().is_some()
     }
 

platforms/macos/src/node.rs

@@ -227,6 +227,7 @@ fn ns_role(node_state: &NodeState) -> &'static NSString {
             Role::DocTip => NSAccessibilityGroupRole,
             Role::DocToc => NSAccessibilityGroupRole,
             Role::ListGrid => NSAccessibilityUnknownRole,
+            Role::Terminal => NSAccessibilityTextAreaRole,
         }
     }
 }

platforms/unix/src/node.rs

@@ -326,6 +326,7 @@ impl<'a> NodeWrapper<'a> {
             // TODO: Are there special cases to consider?
             Role::Presentation | Role::Unknown => AtspiRole::Unknown,
             Role::ImeCandidate | Role::Keyboard => AtspiRole::RedundantObject,
+            Role::Terminal => AtspiRole::Terminal,
         }
     }
 

platforms/windows/src/node.rs

@@ -160,7 +160,7 @@ impl<'a> NodeWrapper<'a> {
             Role::Dialog => UIA_PaneControlTypeId,
             Role::Directory => UIA_ListControlTypeId,
             Role::DisclosureTriangle => UIA_ButtonControlTypeId,
-            Role::Document => UIA_DocumentControlTypeId,
+            Role::Document | Role::Terminal => UIA_DocumentControlTypeId,
             Role::EmbeddedObject => UIA_PaneControlTypeId,
             Role::Emphasis => UIA_TextControlTypeId,
             Role::Feed => UIA_GroupControlTypeId,