comdlg32: Add parent folder button to IFileDialog.

dlls/comdlg32/itemdlg.c

@@ -38,6 +38,7 @@
 #define IDC_NAV_TOOLBAR      200
 #define IDC_NAVBACK          201
 #define IDC_NAVFORWARD       202
+#define IDC_NAVUP            203
 
 #include <initguid.h>
 /* This seems to be another version of IID_IFileDialogCustomize. If
@@ -1965,8 +1966,9 @@ static void init_toolbar(FileDialogImpl *This, HWND hwnd)
 {
     HWND htoolbar;
     TBADDBITMAP tbab;
-    TBBUTTON button[2];
+    TBBUTTON button[3];
     int height;
+    int navUpImgIndex;
 
     htoolbar = CreateWindowExW(0, TOOLBARCLASSNAMEW, NULL, TBSTYLE_FLAT | WS_CHILD | WS_VISIBLE,
                                0, 0, 0, 0,
@@ -1975,6 +1977,9 @@ static void init_toolbar(FileDialogImpl *This, HWND hwnd)
     tbab.hInst = HINST_COMMCTRL;
     tbab.nID = IDB_HIST_LARGE_COLOR;
     SendMessageW(htoolbar, TB_ADDBITMAP, 0, (LPARAM)&tbab);
+    tbab.nID = IDB_VIEW_LARGE_COLOR;
+    navUpImgIndex = SendMessageW(htoolbar, TB_ADDBITMAP, 0, (LPARAM)&tbab);
+    navUpImgIndex += VIEW_PARENTFOLDER;
 
     button[0].iBitmap = HIST_BACK;
     button[0].idCommand = IDC_NAVBACK;
@@ -1990,7 +1995,14 @@ static void init_toolbar(FileDialogImpl *This, HWND hwnd)
     button[1].dwData = 0;
     button[1].iString = 0;
 
-    SendMessageW(htoolbar, TB_ADDBUTTONSW, 2, (LPARAM)button);
+    button[2].iBitmap = navUpImgIndex;
+    button[2].idCommand = IDC_NAVUP;
+    button[2].fsState = TBSTATE_ENABLED;
+    button[2].fsStyle = BTNS_BUTTON;
+    button[2].dwData = 0;
+    button[2].iString = 0;
+
+    SendMessageW(htoolbar, TB_ADDBUTTONSW, 3, (LPARAM)button);
     height = MulDiv(24, This->dpi_y, USER_DEFAULT_SCREEN_DPI);
     SendMessageW(htoolbar, TB_SETBUTTONSIZE, 0, MAKELPARAM(height, height));
     SendMessageW(htoolbar, TB_AUTOSIZE, 0, 0);
@@ -2281,6 +2293,13 @@ static LRESULT on_command_filetype(FileDialogImpl *This, WPARAM wparam, LPARAM l
     return FALSE;
 }
 
+static LRESULT on_browse_up(FileDialogImpl *This)
+{
+    TRACE("%p\n", This);
+    IExplorerBrowser_BrowseToIDList(This->peb, NULL, SBSP_PARENT);
+    return FALSE;
+}
+
 static LRESULT on_wm_command(FileDialogImpl *This, WPARAM wparam, LPARAM lparam)
 {
     switch(LOWORD(wparam))
@@ -2291,6 +2310,7 @@ static LRESULT on_wm_command(FileDialogImpl *This, WPARAM wparam, LPARAM lparam)
     case IDC_NAVBACK:         return on_browse_back(This);
     case IDC_NAVFORWARD:      return on_browse_forward(This);
     case IDC_FILETYPE:        return on_command_filetype(This, wparam, lparam);
+    case IDC_NAVUP:           return on_browse_up(This);
     default:                  TRACE("Unknown command.\n");
     }
     return FALSE;