0.8.0.56: Tab key navigation in file picker for quick control/field switching by keyboard. Minor README fix.

Author: nfinit

README.md

@@ -69,7 +69,7 @@ To install the full SQLite/CE distribution:
 - Place the binaries `SQLiteCEdit.exe` and `SQLiteCETest.exe` in a location of your choosing, such as a directory in `\Program Files` or on your storage card.
 - Create shortcuts on the desktop and Start menu (`\Windows\Programs`) as desired
 
-# Notes and limitations
+# Limitations
 
 SQLite/CE is based on SQLite 2.8, which is quite old (from 2004,) but also much simpler and lighter on memory than newer 3.x releases, while still being much more powerful than the majority of extant database management systems available for Windows CE. But while SQLite/CE can still be very useful, it's important to keep its limitations in mind.
 
@@ -160,7 +160,7 @@ the public domain.
 
 ## Generative AI 
 
-The SQLite/CE port and front-end applications have been developed with a lot of
+The SQLite/CE port and front-end applications have been developed with significant 
 AI assistance, primarily from Claude Opus 4.5. While each new feature and change
 is fairly well-tested after implementation and during daily use, be aware that
 this codebase may have some strange patterns or bugs littered throughout it. The

src/sqlite-ce-edit/filepicker.c

@@ -13,6 +13,8 @@ static HWND g_hwndPicker = NULL;
 static HWND g_hwndList = NULL;
 static HWND g_hwndPath = NULL;
 static HWND g_hwndFilename = NULL;
+static HWND g_hwndOK = NULL;
+static HWND g_hwndCancel = NULL;
 static wchar_t g_pickerDir[MAX_PATH];
 static wchar_t g_pickerResult[MAX_PATH];
 static const wchar_t *g_pickerFilter = NULL;
@@ -21,6 +23,7 @@ static int g_pickerSaveMode = 0;
 static int g_pickerOK = 0;
 static int g_pickerDone = 0;
 static WNDPROC g_pfnListProc = NULL;
+static WNDPROC g_pfnEditProc = NULL;
 
 /*============================================================================
 ** Helper: Extract extension filter (e.g., "*.db" from filter string)
@@ -263,12 +266,89 @@ static void OnTypeAhead(wchar_t ch) {
     }
 }
 
+/*============================================================================
+** Tab navigation helper
+**============================================================================*/
+
+static void TabNext(HWND from) {
+    if (from == g_hwndList) SetFocus(g_hwndFilename);
+    else if (from == g_hwndFilename) SetFocus(g_hwndOK);
+    else if (from == g_hwndOK) SetFocus(g_hwndCancel);
+    else SetFocus(g_hwndList);
+}
+
+static void TabPrev(HWND from) {
+    if (from == g_hwndList) SetFocus(g_hwndCancel);
+    else if (from == g_hwndFilename) SetFocus(g_hwndList);
+    else if (from == g_hwndOK) SetFocus(g_hwndFilename);
+    else SetFocus(g_hwndOK);
+}
+
+/*============================================================================
+** Edit subclass for Tab/Enter handling
+**============================================================================*/
+
+static LRESULT CALLBACK PickerEditProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam) {
+    if (msg == WM_KEYDOWN) {
+        if (wParam == VK_TAB) {
+            if (GetKeyState(VK_SHIFT) & 0x8000)
+                TabPrev(hwnd);
+            else
+                TabNext(hwnd);
+            return 0;
+        }
+        if (wParam == VK_RETURN) {
+            SendMessageW(g_hwndPicker, WM_COMMAND, IDOK, 0);
+            return 0;
+        }
+        if (wParam == VK_ESCAPE) {
+            g_pickerOK = 0;
+            PostMessage(g_hwndPicker, WM_CLOSE, 0, 0);
+            return 0;
+        }
+    }
+    if (msg == WM_CHAR && wParam == '\t')
+        return 0;
+    return CallWindowProc(g_pfnEditProc, hwnd, msg, wParam, lParam);
+}
+
+/*============================================================================
+** Button subclass for Tab handling
+**============================================================================*/
+
+static WNDPROC g_pfnBtnProc = NULL;
+
+static LRESULT CALLBACK PickerBtnProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam) {
+    if (msg == WM_KEYDOWN) {
+        if (wParam == VK_TAB) {
+            if (GetKeyState(VK_SHIFT) & 0x8000)
+                TabPrev(hwnd);
+            else
+                TabNext(hwnd);
+            return 0;
+        }
+        if (wParam == VK_ESCAPE) {
+            g_pickerOK = 0;
+            PostMessage(g_hwndPicker, WM_CLOSE, 0, 0);
+            return 0;
+        }
+    }
+    return CallWindowProc(g_pfnBtnProc, hwnd, msg, wParam, lParam);
+}
+
 /*============================================================================
 ** List subclass for keyboard handling
 **============================================================================*/
 
 static LRESULT CALLBACK PickerListProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam) {
     if (msg == WM_KEYDOWN) {
+        if (wParam == VK_TAB) {
+            if (GetKeyState(VK_SHIFT) & 0x8000)
+                TabPrev(hwnd);
+            else
+                TabNext(hwnd);
+            return 0;
+        }
         if (wParam == VK_RETURN) {
             OnItemActivate();
             return 0;
@@ -482,14 +562,21 @@ int CustomFilePicker(HWND hwndOwner, wchar_t *filePath, int maxPath,
         WS_CHILD | WS_VISIBLE | WS_BORDER | ES_AUTOHSCROLL,
         10, 110, dlgW - 20, 22, g_hwndPicker, (HMENU)102, g_hInst, NULL);
 
+    /* Subclass edit */
+    g_pfnEditProc = (WNDPROC)SetWindowLong(g_hwndFilename, GWL_WNDPROC, (LONG)PickerEditProc);
+    
     /* Buttons */
-    CreateWindowW(L"BUTTON", saveMode ? L"Save" : L"Open",
+    g_hwndOK = CreateWindowW(L"BUTTON", saveMode ? L"Save" : L"Open",
         WS_CHILD | WS_VISIBLE | BS_DEFPUSHBUTTON,
         dlgW - 160, 140, 70, 22, g_hwndPicker, (HMENU)IDOK, g_hInst, NULL);
-    CreateWindowW(L"BUTTON", L"Cancel",
+    g_hwndCancel = CreateWindowW(L"BUTTON", L"Cancel",
         WS_CHILD | WS_VISIBLE,
         dlgW - 80, 140, 70, 22, g_hwndPicker, (HMENU)IDCANCEL, g_hInst, NULL);
 
+    /* Subclass buttons */
+    g_pfnBtnProc = (WNDPROC)SetWindowLong(g_hwndOK, GWL_WNDPROC, (LONG)PickerBtnProc);
+    SetWindowLong(g_hwndCancel, GWL_WNDPROC, (LONG)PickerBtnProc);
+    
     /* Populate list */
     PopulateFileList();
 

src/sqlite-ce-edit/globals.h

@@ -82,7 +82,7 @@ BOOL WINAPI GetSaveFileNameW(CE_OPENFILENAME*);
 ** Version
 **============================================================================*/
 
-#define SQLITECEDIT_VERSION L"0.8.0.51"
+#define SQLITECEDIT_VERSION L"0.8.0.56"
 
 /*============================================================================
 ** Menu IDs