[PATCH v13 12/12] comdlg32: Add Ctrl+Backspace delete word to IFileDialog address edit.

[Vladislav Timonin]

From: Vladislav Timonin

---
 dlls/comdlg32/navbar.c | 60 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 60 insertions(+)

diff --git a/dlls/comdlg32/navbar.c b/dlls/comdlg32/navbar.c
index 2a2aec022a7..7f763327636 100644
--- a/dlls/comdlg32/navbar.c
+++ b/dlls/comdlg32/navbar.c
@@ -545,6 +545,65 @@ static LRESULT NAVBAR_PATHEDIT_NCHitTest(HWND hwnd, UINT msg, WPARAM wparam, LPA
     return DefSubclassProc(hwnd, msg, wparam, lparam);
 }

+static LRESULT NAVBAR_PATHEDIT_KeyDown(HWND hwnd, NAVBAR_INFO *info, UINT msg, WPARAM wparam, LPARAM lparam)
+{
+    WORD key = LOWORD(wparam);
+
+    switch (key) {
+        case VK_BACK:
+        {
+            BOOL control = GetKeyState(VK_CONTROL) & 0x8000;
+
+            /* delete word */
+            if (control)
+            {
+                WCHAR *text = NULL, *ptr = NULL, *end = NULL;
+                INT text_len = 0;
+                UINT caret_pos = 0, selection_end = 0;
+                EDITWORDBREAKPROCW word_break_proc;
+
+                SendMessageW(info->pathedit_hwnd, EM_GETSEL, (WPARAM)&caret_pos, (WPARAM)&selection_end);
+                if (caret_pos != selection_end)
+                    break;
+
+                text_len = GetWindowTextLengthW(info->pathedit_hwnd);
+                if (!text_len)
+                    break;
+
+                text = HeapAlloc(GetProcessHeap(), 0, (text_len + 1) * sizeof(WCHAR));
+                if (!text)
+                    break;
+
+                if (!GetWindowTextW(info->pathedit_hwnd, text, text_len + 1))
+                    goto cleanup;
+
+                ptr = text + caret_pos;
+                end = StrDupW(ptr);
+                if (!end)
+                    goto cleanup;
+
+                word_break_proc = (EDITWORDBREAKPROCW)SendMessageW(info->pathedit_hwnd, EM_GETWORDBREAKPROC, 0, 0);
+                caret_pos = word_break_proc(text, caret_pos, text_len, WB_LEFT);
+                ptr = text + caret_pos;
+                *ptr = '\0';
+
+                lstrcatW(ptr, end);
+                SetWindowTextW(info->pathedit_hwnd, text);
+                SendMessageW(info->pathedit_hwnd, EM_SETSEL, caret_pos, caret_pos);
+
+            cleanup:
+                HeapFree(GetProcessHeap(), 0, text);
+                if (end)
+                    LocalFree(end);
+            }
+
+            break;
+        }
+    }
+
+    return DefSubclassProc(hwnd, msg, wparam, lparam);
+}
+
 static LRESULT CALLBACK NAVBAR_PATHEDIT_SubclassProc(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam, UINT_PTR id_subclass, DWORD_PTR ref_data)
 {
     NAVBAR_INFO *info = (NAVBAR_INFO *)ref_data;
@@ -556,6 +615,7 @@ static LRESULT CALLBACK NAVBAR_PATHEDIT_SubclassProc(HWND hwnd, UINT msg, WPARAM
         case WM_NCCALCSIZE: return NAVBAR_PATHEDIT_NCCalcSize(hwnd, msg, wparam, lparam);
         case WM_NCPAINT: return NAVBAR_PATHEDIT_NCPaint(hwnd, msg, wparam, lparam);
         case WM_NCHITTEST: return NAVBAR_PATHEDIT_NCHitTest(hwnd, msg, wparam, lparam);
+        case WM_KEYDOWN: return NAVBAR_PATHEDIT_KeyDown(hwnd, info, msg, wparam, lparam);
     }

return DefSubclassProc(hwnd, msg, wparam, lparam);