Add TextProvider and TextEdit patterns to AXPlatformNodeWin (fl…

…utter#38646)

* Add TextProvider and TextEdit patterns to AXPlatformNodeWin

* Formatting

third_party/accessibility/ax/platform/ax_platform_node_win.cc

@@ -31,6 +31,7 @@
 #include "ax_fragment_root_win.h"
 #include "ax_platform_node_delegate.h"
 #include "ax_platform_node_delegate_utils_win.h"
+#include "ax_platform_node_textprovider_win.h"
 #include "shellscalingapi.h"
 #include "uia_registrar_win.h"
 
@@ -5599,10 +5600,13 @@ AXPlatformNodeWin::GetPatternProviderFactoryMethod(PATTERNID pattern_id) {
       }
       break;
 
-      // TODO(schectman): add implementations for ITextProvider and
-      // ITextRangeProvider interfaces.
-      // https://github.com/flutter/flutter/issues/114547 and
-      // https://github.com/flutter/flutter/issues/109804
+    case UIA_TextEditPatternId:
+    case UIA_TextPatternId:
+      if (IsText() || IsTextField() ||
+          data.role == ax::mojom::Role::kRootWebArea) {
+        return &AXPlatformNodeTextProviderWin::CreateIUnknown;
+      }
+      break;
 
     case UIA_TogglePatternId:
       if (SupportsToggle(data.role)) {

third_party/accessibility/ax/platform/ax_platform_node_win_unittest.cc

@@ -3509,11 +3509,13 @@ TEST_F(AXPlatformNodeWinTest, GetPatternProviderSupportedPatterns) {
 
   Init(update);
 
-  EXPECT_EQ(PatternSet({UIA_ScrollItemPatternId}),
+  EXPECT_EQ(PatternSet({UIA_ScrollItemPatternId, UIA_TextPatternId,
+                        UIA_TextEditPatternId}),
             GetSupportedPatternsFromNodeId(root_id));
 
   EXPECT_EQ(PatternSet({UIA_ScrollItemPatternId, UIA_ValuePatternId,
-                        UIA_ExpandCollapsePatternId}),
+                        UIA_ExpandCollapsePatternId, UIA_TextPatternId,
+                        UIA_TextEditPatternId}),
             GetSupportedPatternsFromNodeId(text_field_with_combo_box_id));
 
   EXPECT_EQ(PatternSet({UIA_ScrollItemPatternId, UIA_ValuePatternId,