riched20: Implement handling of WM_KEYDOWN VK_TAB in the dialog mode.

dlls/riched20/editor.c

@@ -2293,6 +2293,10 @@ ME_KeyDown(ME_TextEditor *editor, WORD nKey)
       if (editor->bDialogMode && editor->hwndParent)
         PostMessageW(editor->hwndParent, WM_CLOSE, 0, 0);
       return TRUE;
+    case VK_TAB:
+      if (editor->bDialogMode && editor->hwndParent)
+        SendMessageW(editor->hwndParent, WM_NEXTDLGCTL, shift_is_down, 0);
+      return TRUE;
     case 'A':
       if (ctrl_is_down)
       {

dlls/riched20/tests/editor.c

@@ -6816,6 +6816,11 @@ static void test_dialogmode(void)
     ok(0 == r, "expected 0, got %d\n", r);
     test_dm_messages(0, 1, 0);
 
+    memset(&dm_messages, 0, sizeof(dm_messages));
+    r = SendMessage(hwRichEdit, WM_KEYDOWN, VK_TAB, 0xf0001);
+    ok(0 == r, "expected 0, got %d\n", r);
+    test_dm_messages(0, 0, 1);
+
     DestroyWindow(hwRichEdit);
 
     /* Check messages from richedit(ES_MULTILINE) */
@@ -6836,6 +6841,11 @@ static void test_dialogmode(void)
     test_dm_messages(0, 0, 0);
 
     memset(&dm_messages, 0, sizeof(dm_messages));
+    r = SendMessage(hwRichEdit, WM_KEYDOWN, VK_TAB, 0xf0001);
+    ok(0 == r, "expected 0, got %d\n", r);
+    test_dm_messages(0, 0, 0);
+
+    memset(&dm_messages, 0, sizeof(dm_messages));
     r = SendMessage(hwRichEdit, WM_GETDLGCODE, 0, (LPARAM)&msg);
     ok(0x8f == r, "expected 0x8f, got 0x%x\n", r);
     test_dm_messages(0, 0, 0);
@@ -6853,6 +6863,11 @@ static void test_dialogmode(void)
     ok(0 == r, "expected 0, got %d\n", r);
     test_dm_messages(0, 0, 0);
 
+    memset(&dm_messages, 0, sizeof(dm_messages));
+    r = SendMessage(hwRichEdit, WM_KEYDOWN, VK_TAB, 0xf0001);
+    ok(0 == r, "expected 0, got %d\n", r);
+    test_dm_messages(0, 0, 1);
+
     hwButton = CreateWindow("BUTTON", "OK", WS_VISIBLE|WS_CHILD|BS_PUSHBUTTON,
         100, 100, 50, 20, hwParent, (HMENU)ID_RICHEDITTESTDBUTTON, GetModuleHandleA(0), NULL);
     ok(hwButton!=NULL, "CreateWindow failed with error code %d\n", GetLastError());
@@ -6886,6 +6901,11 @@ static void test_dialogmode(void)
     test_dm_messages(0, 0, 0);
 
     memset(&dm_messages, 0, sizeof(dm_messages));
+    r = SendMessage(hwRichEdit, WM_KEYDOWN, VK_TAB, 0xf0001);
+    ok(0 == r, "expected 0, got %d\n", r);
+    test_dm_messages(0, 0, 0);
+
+    memset(&dm_messages, 0, sizeof(dm_messages));
     r = SendMessage(hwRichEdit, WM_GETDLGCODE, 0, (LPARAM)&msg);
     ok(0x8f == r, "expected 0x8f, got 0x%x\n", r);
     test_dm_messages(0, 0, 0);
@@ -6903,6 +6923,11 @@ static void test_dialogmode(void)
     ok(0 == r, "expected 0, got %d\n", r);
     test_dm_messages(0, 0, 0);
 
+    memset(&dm_messages, 0, sizeof(dm_messages));
+    r = SendMessage(hwRichEdit, WM_KEYDOWN, VK_TAB, 0xf0001);
+    ok(0 == r, "expected 0, got %d\n", r);
+    test_dm_messages(0, 0, 1);
+
     hwButton = CreateWindow("BUTTON", "OK", WS_VISIBLE|WS_CHILD|BS_PUSHBUTTON,
         100, 100, 50, 20, hwParent, (HMENU)ID_RICHEDITTESTDBUTTON, GetModuleHandleA(0), NULL);
     ok(hwButton!=NULL, "CreateWindow failed with error code %d\n", GetLastError());
@@ -6933,6 +6958,11 @@ static void test_dialogmode(void)
     test_dm_messages(0, 0, 0);
 
     memset(&dm_messages, 0, sizeof(dm_messages));
+    r = SendMessage(hwRichEdit, WM_KEYDOWN, VK_TAB, 0xf0001);
+    ok(0 == r, "expected 0, got %d\n", r);
+    test_dm_messages(0, 0, 0);
+
+    memset(&dm_messages, 0, sizeof(dm_messages));
     r = SendMessage(hwRichEdit, WM_GETDLGCODE, 0, (LPARAM)&msg);
     ok(0x8b == r, "expected 0x8b, got 0x%x\n", r);
     test_dm_messages(0, 0, 0);
@@ -6947,6 +6977,11 @@ static void test_dialogmode(void)
     ok(0 == r, "expected 0, got %d\n", r);
     test_dm_messages(0, 0, 0);
 
+    memset(&dm_messages, 0, sizeof(dm_messages));
+    r = SendMessage(hwRichEdit, WM_KEYDOWN, VK_TAB, 0xf0001);
+    ok(0 == r, "expected 0, got %d\n", r);
+    test_dm_messages(0, 0, 1);
+
     hwButton = CreateWindow("BUTTON", "OK", WS_VISIBLE|WS_CHILD|BS_PUSHBUTTON,
         100, 100, 50, 20, hwParent, (HMENU)ID_RICHEDITTESTDBUTTON, GetModuleHandleA(0), NULL);
     ok(hwButton!=NULL, "CreateWindow failed with error code %d\n", GetLastError());