[PATCH v4 1/2] user32/msgbox: Support WM_COPY Message

[Alistair Leslie-Hughes]

From: Alistair Leslie-Hughes

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=17205

Signed-off-by: Alistair Leslie-Hughes 
---
 dlls/user32/msgbox.c | 87 +++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 82 insertions(+), 5 deletions(-)

diff --git a/dlls/user32/msgbox.c b/dlls/user32/msgbox.c
index 4d345777a10..2a1d81d1462 100644
--- a/dlls/user32/msgbox.c
+++ b/dlls/user32/msgbox.c
@@ -41,6 +41,11 @@ struct ThreadWindows
     HWND *handles;
 };

+/* Index the order the buttons need to appear to an ID* constant */
+static const int buttonOrder[10] = { IDYES, IDNO, IDOK, IDABORT, IDRETRY,
+                                 IDCANCEL, IDIGNORE, IDTRYAGAIN,
+                                 IDCONTINUE, IDHELP };
+
 static BOOL CALLBACK MSGBOX_EnumProc(HWND hwnd, LPARAM lParam)
 {
     struct ThreadWindows *threadWindows = (struct ThreadWindows *)lParam;
@@ -74,11 +79,6 @@ static void MSGBOX_OnInit(HWND hwnd, LPMSGBOXPARAMSW lpmb)
     WCHAR *buffer = NULL;
     const WCHAR *ptr;

-    /* Index the order the buttons need to appear to an ID* constant */
-    static const int buttonOrder[10] = { IDYES, IDNO, IDOK, IDABORT, IDRETRY,
-                                         IDCANCEL, IDIGNORE, IDTRYAGAIN,
-                                         IDCONTINUE, IDHELP };
-
     nclm.cbSize = sizeof(nclm);
     SystemParametersInfoW (SPI_GETNONCLIENTMETRICS, 0, &nclm, 0);

@@ -320,6 +320,79 @@ static void MSGBOX_OnInit(HWND hwnd, LPMSGBOXPARAMSW lpmb)
     HeapFree( GetProcessHeap(), 0, buffer );
 }

+static void MSGBOX_CopyToClipbaord( HWND hwnd )
+{
+    int i;
+    static const WCHAR line[] = L"---------------------------\r\n";
+    static const WCHAR carriage[] = L"\r\n";
+    static const WCHAR spaces[] = L"   ";
+    int lenTitle = GetWindowTextLengthW(hwnd) + 1;
+    int lenMsg = GetWindowTextLengthW(GetDlgItem(hwnd, MSGBOX_IDTEXT)) + 1;
+    HGLOBAL hMem;
+    WCHAR *data;
+
+
+    /*
+    ---------------------------
+    Dialog Title
+    ---------------------------
+    Dialog Message
+    ---------------------------
+    Button(s) Text. OK
+    ---------------------------
+    */
+    int len = ((wcslen(carriage) * 3) + (wcslen(line) * 4) + lenTitle + lenMsg) * sizeof(WCHAR);
+    WCHAR *text = malloc(len);
+    if (!text)
+        return;
+
+    lstrcpyW(text, line);
+    if (!GetWindowTextW(hwnd, text + lstrlenW(text), lenTitle))
+    {
+        free(text);
+        return;
+    }
+
+    lstrcatW(text, carriage);
+    lstrcatW(text, line);
+    GetWindowTextW(GetDlgItem(hwnd, MSGBOX_IDTEXT), text + lstrlenW(text), lenMsg);
+    lstrcatW(text, carriage);
+    lstrcatW(text, line);
+
+    for (i = 0; i < ARRAY_SIZE(buttonOrder); i++)
+    {
+        HWND hItem = GetDlgItem(hwnd, buttonOrder[i]);
+        if (GetWindowLongW(hItem, GWL_STYLE) & WS_VISIBLE)
+        {
+            WCHAR buffer[1024] = {0};
+            int j = 0, k = lstrlenW(text);
+            GetWindowTextW(hItem, buffer, 1024);
+            while(buffer[j] != 0)
+            {
+                if(buffer[j] != '&')
+                    text[k++] = buffer[j];
+                j++;
+            }
+            text[k] = 0;
+            lstrcatW(text, spaces);
+        }
+    }
+
+    lstrcatW(text, carriage);
+    lstrcatW(text, line);
+
+    hMem = GlobalAlloc(GMEM_MOVEABLE|GMEM_DDESHARE, len);
+    data = GlobalLock(hMem);
+    lstrcpyW(data, text);
+    GlobalUnlock(hMem);
+
+    OpenClipboard(hwnd);
+    NtUserEmptyClipboard();
+    SetClipboardData(CF_UNICODETEXT, hMem);
+    NtUserCloseClipboard();
+
+    free(text);
+}

/**************************************************************************
  *           MSGBOX_DlgProc
@@ -339,6 +412,10 @@ static INT_PTR CALLBACK MSGBOX_DlgProc( HWND hwnd, UINT message,
        break;
    }

+   case WM_COPY:
+        MSGBOX_CopyToClipbaord(hwnd);
+        break;
+
    case WM_COMMAND:
     switch (LOWORD(wParam))
     {