Release v0.6.10: preserve typing during correction and add personal dictionaries

CMakeLists.txt

@@ -1,5 +1,5 @@
 cmake_minimum_required(VERSION 3.24)
-project(KSwitcher VERSION 0.6.8 LANGUAGES CXX RC)
+project(KSwitcher VERSION 0.6.10 LANGUAGES CXX RC)
 if(NOT WIN32)
   message(FATAL_ERROR "KSwitcher uses native Windows APIs")
 endif()
@@ -9,7 +9,7 @@ add_library(kscore src/core.cpp src/platform.cpp src/autostart.cpp src/autocorre
 target_include_directories(kscore PUBLIC src PRIVATE vendor)
 target_compile_definitions(kscore PUBLIC UNICODE _UNICODE WIN32_LEAN_AND_MEAN NOMINMAX _WIN32_WINNT=0x0A00)
 target_link_libraries(kscore PUBLIC user32 shell32 shlwapi advapi32 crypt32 imm32 comctl32 gdi32 ole32 oleaut32 taskschd comdlg32 uuid windowscodecs runtimeobject uiautomationcore)
-add_executable(KSwitcher WIN32 src/main.cpp src/app.cpp src/screenshot_launcher.cpp src/screenshot_activation.cpp src/configuration.cpp src/ui.cpp resources/app.rc)
+add_executable(KSwitcher WIN32 src/main.cpp src/app.cpp src/screenshot_notifications.cpp src/screenshot_launcher.cpp src/screenshot_activation.cpp src/configuration.cpp src/ui.cpp resources/app.rc)
 target_compile_definitions(KSwitcher PRIVATE KS_RESIDENT_APP)
 target_link_libraries(KSwitcher PRIVATE kscore)
 add_executable(KSwitcherConfig WIN32 src/config_main.cpp src/configuration.cpp src/ui.cpp resources/app.rc)
@@ -18,9 +18,9 @@ target_compile_definitions(KSwitcherConfig PRIVATE KS_CONFIG_APP)
 target_link_libraries(KSwitcherConfig PRIVATE kscore)
 add_executable(KSwitcherTests tests/tests.cpp)
 target_link_libraries(KSwitcherTests PRIVATE kscore)
-add_executable(KSwitcherIntegration tests/integration.cpp src/screenshot_launcher.cpp src/screenshot_activation.cpp src/app.cpp src/screenshot.cpp src/configuration.cpp src/ui.cpp resources/app.rc)
+add_executable(KSwitcherIntegration tests/integration.cpp src/screenshot_launcher.cpp src/screenshot_activation.cpp src/app.cpp src/screenshot_notifications.cpp src/screenshot.cpp src/configuration.cpp src/ui.cpp resources/app.rc)
 target_link_libraries(KSwitcherIntegration PRIVATE kscore)
-add_executable(KSwitcherInputTests tests/input.cpp src/screenshot_launcher.cpp src/screenshot_activation.cpp src/app.cpp src/screenshot.cpp src/configuration.cpp src/ui.cpp resources/app.rc)
+add_executable(KSwitcherInputTests tests/input.cpp src/screenshot_launcher.cpp src/screenshot_activation.cpp src/app.cpp src/screenshot_notifications.cpp src/screenshot.cpp src/configuration.cpp src/ui.cpp resources/app.rc)
 target_link_libraries(KSwitcherInputTests PRIVATE kscore)
 target_compile_definitions(KSwitcherInputTests PRIVATE KS_SCREENSHOT_RESOURCES)
 add_executable(KSwitcherScreenshotUITests tests/screenshot_ui.cpp resources/app.rc)
@@ -36,7 +36,7 @@ if(MSVC)
 else()
   target_link_options(KSwitcherScreenshotUITests PRIVATE -static -static-libgcc -static-libstdc++)
 endif()
-add_executable(KSwitcherOcrTests tests/ocr.cpp src/screenshot_launcher.cpp src/screenshot_activation.cpp src/app.cpp src/screenshot.cpp src/configuration.cpp src/ui.cpp resources/app.rc)
+add_executable(KSwitcherOcrTests tests/ocr.cpp src/screenshot_launcher.cpp src/screenshot_activation.cpp src/app.cpp src/screenshot_notifications.cpp src/screenshot.cpp src/configuration.cpp src/ui.cpp resources/app.rc)
 target_link_libraries(KSwitcherOcrTests PRIVATE kscore)
 if(MSVC)
   set_property(TARGET kscore KSwitcher KSwitcherConfig KSwitcherScreenshot KSwitcherTests KSwitcherIntegration KSwitcherInputTests KSwitcherOcrTests PROPERTY MSVC_RUNTIME_LIBRARY "MultiThreaded$<$<CONFIG:Debug>:Debug>")

README.md

@@ -178,6 +178,11 @@ Select **Update** in the tray menu to check the stable Releases of
 [this repository](https://gitea.hrynco.com/hrynco/hrynco-kswitcher/releases).
 A background check runs shortly after startup and every 6 hours while KSwitcher is running.
 It reports each available version once per session and never installs automatically.
+Update availability uses the same Windows toast notification channel as screenshot notifications.
+Click the notification or **Review update** to check the latest release and confirm installation;
+**Later** dismisses it. Windows Do Not Disturb may send it directly to Notification Center.
+Failed notification submissions are logged and retried after five minutes instead of being marked
+as delivered. Check results and successful submissions are recorded in the log when logging is enabled.
 Network failures stay in diagnostics; the next scheduled check retries. You can also check manually at any time.
 Confirm the offered version to download and install it. The updater uses the existing
 `KSwitcher-win-x64.zip` and `SHA256SUMS.txt` assets, checks the checksum, package contents, x64
@@ -338,14 +343,23 @@ after Space, not immediately after a punctuation key. Save Settings to apply cha
 **Frequency rank limit** defaults to **0 (entire dictionary)**. A positive value allows corrections
 only to words with a rank at or below that number (for example, 10000). All dictionary words still
 protect already valid input, and ambiguous alternatives remain unchanged regardless of this limit.
+**My dictionary** provides separate English, Ukrainian and Russian fields for correct words missing
+from the bundled dictionaries. Enter words separated by commas or new lines, then click OK and Save
+in Settings. Case and duplicates are normalized automatically; no file editing or ranks are needed.
+These entries are stored in settings and survive dictionary updates. They protect correct input and
+are eligible as correction targets at any frequency limit. The language and target layout must still
+be enabled. **Never correct these words** is a separate exception list and takes precedence.
 **Open dictionary folder** opens the files beside the running executable. After editing, click OK
 in the options window and Save in Settings to validate and reload the dictionaries without restarting.
-Use UTF-8, one lowercase word followed by a Tab and a positive rank per line; keep words sorted and
+Use UTF-8, one lowercase word followed by a Tab and a positive rank per line. Entries can be appended;
-unique. For a personal addition, rank 1 makes it eligible at every positive limit. Back up your edited
+loading sorts them and merges duplicates using the lowest rank. Back up your edited
 files before replacing dictionaries with a new distribution.
 
 After Space and a 250 ms typing pause, KSwitcher checks the last physically typed word against local
-dictionaries. For example, `ghbdsn ` can become `привіт `. Continuing to type cancels pending work.
+dictionaries. For example, `ghbdsn ` can become `привіт `. Continuing to type before selection cancels
+pending work. During the replacement itself, key presses and releases are queued and replayed after
+clipboard restoration and layout switching, preserving typing order, modifiers and Backspace.
+If the active window changes, queued typing is not sent to another window and a warning is shown.
 It only corrects unknown words when exactly one alternative is a dictionary word.
 **Minimum word length** defaults to 3 and can be set from 1 to 32 letters. Surrounding punctuation
 does not count toward this minimum; the maximum word length is 32 letters.

Release/README.md

@@ -1,29 +1,24 @@
 # Latest Windows release
 
-## v0.6.8 — 2026-10-29
+## v0.6.10 — 2026-10-29
 
 ## Changes
-- Recognize clipboard images automatically in a background worker, including older images without OCR. Save recognized text encrypted alongside the original image and search it without rerunning OCR.
+- Preserve typing during automatic layout correction: queue key presses and releases until replacement, clipboard restoration and layout switching finish. Preserve modifiers and Backspace; collapse temporary selection before replay when a correction is rejected.
-- Keep clipboard capture, previews and OCR from delaying history search. Skip unnecessary image-payload reads; ignore superseded search results.
+- Add My dictionary fields for English, Ukrainian and Russian in Auto-correction options. Enter correct words separated by commas or new lines; save them with settings without editing dictionary files, sorting entries or assigning ranks.
-- Add optional Tesseract 5 support in Settings → OCR options, with automatic installation detection, executable selection, combined languages such as ukr+eng+rus, installation validation and a Download Tesseract button linking to the Windows installer page. Windows OCR remains the default; no downloads are automatic.
+- Accept unsorted dictionary files and duplicate entries, retaining the lowest rank for duplicates. Include Ukrainian `реліз` in the bundled vocabulary so `релыз` can be corrected when Russian and Ukrainian are enabled.
-- Refresh cached image text when the OCR engine or languages change. Reuse OCR for Copy text from image; preserve the clipboard during automatic recognition.
-- Start the screenshot editor with Pencil / Freehand (F). Pointer remains available with V.
 
 ## Validation
-203 native checks, 445 input/layout checks, screenshot editor UI integration (including the initial pencil cursor), isolated notification registration, and 45 updater checks. Native Windows OCR and optional Tesseract tests verify background recognition, encrypted persistence, unchanged clipboard, mixed Ukrainian/English text, and engine-cache migration. OCR settings were also checked in the running configurator.
+Native regression checks cover personal words, settings persistence, language validation, dictionary ordering and duplicate ranks. Input/UI checks cover personal-word entry and normalization. Native editor integration covers typing with Shift and Backspace during successful and rejected corrections. Release checks also cover screenshot UI, isolated notification registration and updater validation.
 
 **Upgrade:** choose Update in the tray menu. Legacy v0.3.0–v0.4.1 clients first receive the v0.4.2 compatibility bridge, then the current full release. v0.2.3 and earlier require manual installation.
-For manual installation, exit KSwitcher and extract the entire ZIP into its installation folder. Keep personal `data/` and customized dictionaries.
+For manual installation, exit KSwitcher and extract the entire ZIP into its installation folder. Keep personal `data/` and customized dictionaries. Existing customized dictionary files may be preserved by the updater; use My dictionary to add missing words without replacing those files.
 
 Download **KSwitcher-win-x64.zip** with **SHA256SUMS.txt**. The package contains all three executables, a release manifest, offline dictionaries, documentation and license notices. It contains no personal settings, clipboard history, Tesseract installation or language models.
 
-Documentation: [English](https://gitea.hrynco.com/hrynco/hrynco-kswitcher/wiki/Clipboard) · [Українська](https://gitea.hrynco.com/hrynco/hrynco-kswitcher/wiki/Clipboard-uk).
-
 Build and package:
 
 ```powershell
-.\build.ps1 -Test -Ocr
+.\build.ps1 -Stage -Test -Integration
-.\build\KSwitcherOcrTests.exe --tesseract
 .\package.ps1 -PublishRelease
 ```
 

Release/SHA256SUMS.txt

@@ -1 +1 @@
-31c2c9923ff0f6d71eb421bcea890409cedf7a48999ebc513d0adedf5a2c9839  KSwitcher-win-x64.zip
+36966eb0b2b0af47c245aec6337a16703e0fbdca4d3eda7a8f25fa14a20f347e  KSwitcher-win-x64.zip

build.ps1

@@ -27,7 +27,7 @@ try {
     & windres --codepage=65001 -DKS_SCREENSHOT_RESOURCES resources/app.rc -O coff -o build/screenshot-res.o
     if ($LASTEXITCODE) { throw 'Screenshot resource compilation failed' }
     New-Item -ItemType Directory -Force build/release | Out-Null
-    & $compiler -mwindows -municode -static -s '-Wl,--gc-sections' build/core.o build/platform.o build/autostart.o build/autocorrect.o build/storage.o build/ocr.o build/richtext.o build/update.o build/screenshot_launcher.o build/screenshot_activation.o build/app.o build/configuration.o build/ui-resident.o build/main.o build/app-res.o @libs -o $executablePath
+    & $compiler -mwindows -municode -static -s '-Wl,--gc-sections' build/core.o build/platform.o build/autostart.o build/autocorrect.o build/storage.o build/ocr.o build/richtext.o build/update.o build/screenshot_launcher.o build/screenshot_activation.o build/screenshot_notifications.o build/app.o build/configuration.o build/ui-resident.o build/main.o build/app-res.o @libs -o $executablePath
     if ($LASTEXITCODE) { throw 'Link failed' }
     Copy-Item -LiteralPath $executablePath -Destination build/release/KSwitcher.exe -Force
     $configPath = Join-Path (Split-Path $executablePath) 'KSwitcher.Config.exe'
@@ -43,7 +43,7 @@ try {
         if ($LASTEXITCODE) { throw 'Test build failed' }
         & .\build\KSwitcherTests.exe
         if ($LASTEXITCODE) { throw 'Tests failed' }
-        & $compiler @common tests/input.cpp build/core.o build/platform.o build/autostart.o build/autocorrect.o build/storage.o build/ocr.o build/richtext.o build/update.o build/screenshot.o build/screenshot_launcher.o build/screenshot_activation.o build/app.o build/configuration.o build/ui.o build/screenshot-res.o @libs -static -s -o build/KSwitcherInputTests.exe
+        & $compiler @common tests/input.cpp build/core.o build/platform.o build/autostart.o build/autocorrect.o build/storage.o build/ocr.o build/richtext.o build/update.o build/screenshot.o build/screenshot_launcher.o build/screenshot_activation.o build/screenshot_notifications.o build/app.o build/configuration.o build/ui.o build/screenshot-res.o @libs -static -s -o build/KSwitcherInputTests.exe
         if ($LASTEXITCODE) { throw 'Input test build failed' }
         & .\build\KSwitcherInputTests.exe
         if ($LASTEXITCODE) { throw 'Input tests failed' }
@@ -63,13 +63,13 @@ try {
         if ($LASTEXITCODE) { throw 'Updater tests failed' }
     }
     if ($Integration) {
-        & $compiler @common tests/integration.cpp build/core.o build/platform.o build/autostart.o build/autocorrect.o build/storage.o build/ocr.o build/richtext.o build/update.o build/screenshot.o build/screenshot_launcher.o build/screenshot_activation.o build/app.o build/configuration.o build/ui.o build/screenshot-res.o @libs -static -s -o build/KSwitcherIntegration.exe
+        & $compiler @common tests/integration.cpp build/core.o build/platform.o build/autostart.o build/autocorrect.o build/storage.o build/ocr.o build/richtext.o build/update.o build/screenshot.o build/screenshot_launcher.o build/screenshot_activation.o build/screenshot_notifications.o build/app.o build/configuration.o build/ui.o build/screenshot-res.o @libs -static -s -o build/KSwitcherIntegration.exe
         if ($LASTEXITCODE) { throw 'Integration test build failed' }
         & .\build\KSwitcherIntegration.exe
         if ($LASTEXITCODE) { throw 'Integration tests failed' }
     }
     if ($Ocr) {
-        & $compiler @common tests/ocr.cpp build/core.o build/platform.o build/autostart.o build/autocorrect.o build/storage.o build/ocr.o build/richtext.o build/update.o build/screenshot.o build/screenshot_launcher.o build/screenshot_activation.o build/app.o build/configuration.o build/ui.o build/screenshot-res.o @libs -static -s -o build/KSwitcherOcrTests.exe
+        & $compiler @common tests/ocr.cpp build/core.o build/platform.o build/autostart.o build/autocorrect.o build/storage.o build/ocr.o build/richtext.o build/update.o build/screenshot.o build/screenshot_launcher.o build/screenshot_activation.o build/screenshot_notifications.o build/app.o build/configuration.o build/ui.o build/screenshot-res.o @libs -static -s -o build/KSwitcherOcrTests.exe
         if ($LASTEXITCODE) { throw 'OCR test build failed' }
         & .\build\KSwitcherOcrTests.exe
         if ($LASTEXITCODE) { throw 'OCR tests failed' }

dictionaries/README.md

@@ -17,9 +17,19 @@ replace counts with original frequency ranks, sort lexically. Reproduce with
 hashes. The lists contain word forms from subtitles, not a complete spelling
 or grammar dictionary. Recognition can miss names, jargon and uncommon forms.
 
-File format: UTF-8 word, TAB, positive original frequency rank, newline.
+Supplemental Ukrainian vocabulary: `реліз`. These additions use rank 50001,
+after the upstream 50k list, rather than claiming a measured corpus frequency.
+They are included with the default unlimited rank setting and recorded in sources.json.
+
+File format: UTF-8 word, TAB, positive frequency rank (or supplemental rank), newline.
 All entries protect known words. The frequency rank limit in Auto-correction options defaults to 0
 (entire dictionary); a positive limit only permits correction candidates at or below that rank.
-Personal words may use rank 1. Keep entries lowercase, unique and sorted, with a Tab separator.
+Prefer Settings > Auto-correction options > My dictionary for personal words.
+Enter correct spellings in the matching language field, separated by commas or new lines.
+These words are stored in settings, survive dictionary updates, and need no ranks or sorting.
+Click OK, then Save in Settings to apply them.
+
+For advanced file edits, personal words may use rank 1. Keep entries lowercase with a Tab separator.
+Words may be appended: loading sorts entries and merges duplicates using the lowest rank.
 Save the UTF-8 file, then click OK in Auto-correction options and Save in Settings to reload it.
 Back up edited files before replacing dictionaries with a new distribution.

dictionaries/sources.json

@@ -9,9 +9,12 @@
   "uk": {
     "source": "https://raw.githubusercontent.com/hermitdave/FrequencyWords/525f9b560de45753a5ea01069454e72e9aa541c6/content/2016/uk/uk_50k.txt",
     "sourceSha256": "9548b79a608d33f39c5546037a69117d679730b1fda08dd0ce67c043dbf3335a",
-    "words": 42549,
+    "words": 42550,
-    "bytes": 898210,
+    "bytes": 898227,
-    "sha256": "b4104898dcccbc1331ec01e9cd690e30285fe58481460e47438e973964d09802"
+    "sha256": "c94605e6be676d2d64f89a3bc16f92b9128f9977d226a97b103cf22a3e6835e3",
+    "supplementalWords": {
+      "\u0440\u0435\u043b\u0456\u0437": 50001
+    }
   },
   "ru": {
     "source": "https://raw.githubusercontent.com/hermitdave/FrequencyWords/525f9b560de45753a5ea01069454e72e9aa541c6/content/2016/ru/ru_50k.txt",

dictionaries/uk.txt

@@ -31207,6 +31207,7 @@
 релігію	26138
 релігія	22202
 релігії	23427
+реліз	50001
 рембо	28603
 ремень	23872
 ремені	28385

resources/app.rc

@@ -9,8 +9,8 @@ IDC_SCREENSHOT_PENCIL CURSOR "icons/lucide/pencil.cur"
 1 RT_MANIFEST "app.manifest"
 201 RCDATA "update.ps1"
 1 VERSIONINFO
- FILEVERSION 0,6,8,0
+ FILEVERSION 0,6,10,0
- PRODUCTVERSION 0,6,8,0
+ PRODUCTVERSION 0,6,10,0
  FILEOS VOS_NT_WINDOWS32
  FILETYPE VFT_APP
 BEGIN
@@ -20,7 +20,7 @@ BEGIN
   BEGIN
    VALUE "FileDescription", "KSwitcher — native keyboard and clipboard utility"
    VALUE "ProductName", "KSwitcher"
-   VALUE "FileVersion", "0.6.8"
+   VALUE "FileVersion", "0.6.10"
   END
  END
  BLOCK "VarFileInfo"

src/app.cpp

@@ -233,6 +233,7 @@ class Transaction
 } // namespace
 App::App(HINSTANCE h, bool test, const std::filesystem::path &dataRoot) : instance(h), smoke(test)
 {
+    updateNotifier = notifyUpdateAvailable;
     current = this;
     data = dataRoot.empty() ? dataDirectory() : dataRoot;
     std::filesystem::create_directories(data);
@@ -597,6 +598,27 @@ bool App::handleKeyboard(const KBDLLHOOKSTRUCT &key, bool down, UINT mods)
     // down AND up events use exactly the same path as physical keyboard input.
     if (ownKeyboardInput(key) || installingUpdate)
         return false;
+    {
+        std::lock_guard lock(stateMutex);
+        if (typingTarget && GetForegroundWindow() == typingTarget)
+        {
+            INPUT input{};
+            input.type = INPUT_KEYBOARD;
+            input.ki.wVk = static_cast<WORD>(key.vkCode);
+            input.ki.wScan = static_cast<WORD>(key.scanCode);
+            input.ki.dwFlags = (down ? 0 : KEYEVENTF_KEYUP) |
+                               ((key.flags & LLKHF_EXTENDED) ? KEYEVENTF_EXTENDEDKEY : 0);
+            if (key.vkCode == VK_PACKET)
+            {
+                input.ki.wVk = 0;
+                input.ki.dwFlags |= KEYEVENTF_UNICODE;
+            }
+            // Replay as ordinary input so tracking and shortcuts see it once,
+            // after the replacement and layout switch have finished.
+            deferredTyping.push_back(input);
+            return true;
+        }
+    }
     DWORD captureProcess{};
     if (hotkeyCapture) GetWindowThreadProcessId(hotkeyCapture, &captureProcess);
     if (hotkeyCapture && (!captureProcess || captureProcess != hotkeyCaptureProcess))
@@ -639,6 +661,41 @@ bool App::handleKeyboard(const KBDLLHOOKSTRUCT &key, bool down, UINT mods)
         return true;
     return false;
 }
+bool App::beginTypingDeferral(HWND target, uint64_t version)
+{
+    std::lock_guard lock(stateMutex);
+    if (inputVersion != version || GetForegroundWindow() != target || !modifiersReleased())
+        return false;
+    typingTarget = target;
+    return true;
+}
+void App::replayTyping()
+{
+    std::vector<INPUT> inputs;
+    HWND target;
+    {
+        std::lock_guard lock(stateMutex);
+        target = typingTarget;
+        typingTarget = nullptr;
+        inputs.swap(deferredTyping);
+    }
+    busy = false;
+    if (inputs.empty())
+        return;
+    if (GetForegroundWindow() != target)
+    {
+        resetInput();
+        report(L"Typing during correction was not replayed because the active window changed.");
+        return;
+    }
+    // Runs on the hook thread: no physical key can pass between releasing the
+    // gate and submitting the entire ordered batch to the Windows input queue.
+    if (SendInput(static_cast<UINT>(inputs.size()), inputs.data(), sizeof(INPUT)) != inputs.size())
+    {
+        resetInput();
+        report(L"Windows could not replay all typing buffered during correction.");
+    }
+}
 LRESULT CALLBACK App::keyProc(int code, WPARAM wp, LPARAM lp)
 {
     if (code == HC_ACTION && current &&
@@ -674,6 +731,7 @@ void App::dispatch(int command)
         return;
     try
     {
+        if (command == 23) { checkUpdate(true); return; }
         if (command == Screenshot)
         {
             if (!busy) { resetInput(); launchScreenshot(*this); }
@@ -760,11 +818,16 @@ void App::transform(int command, int snippet)
             struct BusyReset
             {
                 std::atomic<bool> &b;
+                HWND window;
+                bool deferred{};
                 ~BusyReset()
                 {
-                    b = false;
+                    if (deferred)
+                        PostMessageW(window, ReplayTypingMessage, 0, 0);
+                    else
+                        b = false;
                 }
-            } reset{busy};
+            } reset{busy, window};
             auto start = GetTickCount64();
             std::wstring reason = L"cancelled-before-selection";
             std::wstring text, result, expected;
@@ -847,6 +910,21 @@ void App::transform(int command, int snippet)
                         return;
                 }
                 reason = L"clipboard-snapshot";
+                if (command == AutoCorrect)
+                {
+                    if (!beginTypingDeferral(target, version))
+                        return;
+                    reset.deferred = true;
+                }
+                // Collapse a temporary selection on every failed auto-correction,
+                // including clipboard exceptions, before queued typing is replayed.
+                bool autoSelected = false;
+                struct SelectionReset
+                {
+                    bool &selected;
+                    std::function<bool()> valid;
+                    ~SelectionReset() { if (selected && valid()) chord(VK_RIGHT); }
+                } selectionReset{autoSelected, valid};
                 Transaction tx(*this, target, version);
                 reason = L"selection-unavailable";
                 diagnosticEvent(L"Transform target=" + processName(target) + L" command=" + std::to_wstring(command) +
@@ -863,6 +941,7 @@ void App::transform(int command, int snippet)
                     // conversion, automatic correction must never fall back to a suffix.
                     if (!tx.valid() || !chord(VK_LEFT, MOD_CONTROL | MOD_SHIFT))
                         return;
+                    autoSelected = true;
                     Sleep(25);
                     text = tx.copy();
                     // Some editors first select only ") ". Extend by whole-word
@@ -879,7 +958,10 @@ void App::transform(int command, int snippet)
                     if (!suggestion || !tx.valid() || !autoCorrectionAllowed(target, config))
                     {
                         if (tx.valid())
+                        {
                             chord(VK_RIGHT);
+                            autoSelected = false;
+                        }
                         return;
                     }
                     to = suggestion->target;
@@ -1016,6 +1098,8 @@ void App::transform(int command, int snippet)
                     sent = tx.paste(textClip(result));
                 else if (automatic && tx.valid())
                     chord(VK_RIGHT);
+                if (sent || result == text)
+                    autoSelected = false;
                 reason = result == text ? L"conversion-unchanged" :
                          sent ? L"paste-sent-unverified" : L"paste-cancelled";
                 if (result == text &&
@@ -1328,6 +1412,8 @@ LRESULT CALLBACK App::windowProc(HWND hwnd, UINT msg, WPARAM wp, LPARAM lp)
         if (app->updateWorker.joinable()) app->updateWorker.join();
         app->updateRunning = false;
         app->installingUpdate = false;
+        log(L"Update check: " + result->state + (result->version.empty() ? L"" : L" " + result->version) +
+            (result->error.empty() ? L"" : L"; " + result->error));
         if (result->state == L"prepared")
         {
             // The helper has verified and staged the package; it waits for process exit.
@@ -1345,13 +1431,16 @@ LRESULT CALLBACK App::windowProc(HWND hwnd, UINT msg, WPARAM wp, LPARAM lp)
             }
             else if (app->notifiedUpdate != result->version)
             {
-                app->notifiedUpdate = result->version;
+                if (app->updateNotifier(result->version))
-                NOTIFYICONDATAW icon{sizeof(icon)};
+                {
-                icon.hWnd = hwnd; icon.uID = 1; icon.uFlags = NIF_INFO; icon.dwInfoFlags = NIIF_INFO;
+                    app->notifiedUpdate = result->version;
-                wcscpy_s(icon.szInfoTitle, L"KSwitcher update available");
+                    log(L"Update notification submitted to Windows: " + result->version);
-                auto text = result->version + L" is available. Select Update in the tray menu to install.";
+                }
-                wcsncpy_s(icon.szInfo, text.c_str(), _TRUNCATE);
+                else
-                Shell_NotifyIconW(NIM_MODIFY, &icon);
+                {
+                    log(L"Update notification failed; retrying in 5 minutes: " + result->version);
+                    SetTimer(hwnd, 5, UpdateNotificationRetryMs, nullptr);
+                }
             }
         }
         else if (result->state == L"current")
@@ -1370,6 +1459,9 @@ LRESULT CALLBACK App::windowProc(HWND hwnd, UINT msg, WPARAM wp, LPARAM lp)
     case WM_HOTKEY:
         app->dispatch((int)wp);
         return 0;
+    case ReplayTypingMessage:
+        app->replayTyping();
+        return 0;
     case TrayMessage:
         if (LOWORD(lp) == WM_CONTEXTMENU)
             app->trayMenu();

src/app.h

@@ -16,6 +16,7 @@ inline constexpr UINT TrayMessage = WM_APP + 1, ErrorMessage = WM_APP + 2, Histo
 inline constexpr int Toggle = 1, Case = 2, Translit = 3, Undo = 4, ShowHistory = 5, AutoCorrect = 6,
                      Screenshot = 7, Direct = 100;
 inline constexpr UINT AutoCorrectMessage = WM_APP + 6;
+inline constexpr UINT ReplayTypingMessage = WM_APP + 30;
 inline constexpr UINT CaptureHotkeyMessage = WM_APP + 5;
 struct LastTransform
 {
@@ -95,6 +96,7 @@ class App
     std::thread updateWorker;
     bool updateRunning{}, installingUpdate{};
     std::wstring availableUpdate, notifiedUpdate;
+    bool (*updateNotifier)(const std::wstring &){};
     bool stop{};
     UINT taskbarCreated{};
     uint64_t pendingAutoVersion{};
@@ -104,6 +106,10 @@ class App
     int previousAttemptCommand{}, repeatAttempts{};
     std::vector<std::pair<int, Hotkey>> hookBindings;
     HotkeyHook hotkeyHook;
+    HWND typingTarget{};
+    std::vector<INPUT> deferredTyping;
+    bool beginTypingDeferral(HWND, uint64_t);
+    void replayTyping();
     static LRESULT CALLBACK windowProc(HWND, UINT, WPARAM, LPARAM);
     static LRESULT CALLBACK keyProc(int, WPARAM, LPARAM);
     static LRESULT CALLBACK mouseProc(int, WPARAM, LPARAM);

src/autocorrect.cpp

@@ -70,9 +70,18 @@ AutoCorrector::Dictionary::Dictionary(const std::filesystem::path &path)
     }
     if (offsets.empty())
         throw std::runtime_error("Empty auto-correction dictionary");
-    for (size_t i = 1; i < offsets.size(); ++i)
+    auto entry = [&](uint32_t offset) { return std::string_view(bytes).substr(offset, bytes.find('\t', offset) - offset); };
-        if (word(i - 1) >= word(i))
+    auto frequency = [&](uint32_t offset)
-            throw std::runtime_error("Dictionary must be uniquely sorted");
+    {
+        int rank{};
+        auto start = offset + entry(offset).size() + 1;
+        std::from_chars(bytes.data() + start, bytes.data() + bytes.size(), rank);
+        return rank;
+    };
+    std::sort(offsets.begin(), offsets.end(), [&](uint32_t a, uint32_t b)
+              { return entry(a) == entry(b) ? frequency(a) < frequency(b) : entry(a) < entry(b); });
+    offsets.erase(std::unique(offsets.begin(), offsets.end(), [&](uint32_t a, uint32_t b)
+                              { return entry(a) == entry(b); }), offsets.end());
     offsets.shrink_to_fit();
     bytes.shrink_to_fit();
 }
@@ -151,9 +160,16 @@ std::optional<AutoSuggestion> AutoCorrector::suggest(const std::wstring &typed,
     auto sourceLanguage = layoutLanguage(layouts[source]);
     if (!dictionaries.contains(sourceLanguage))
         return {};
+    auto personal = [&](const std::wstring &language, const std::wstring &candidate)
+    {
+        auto found = settings.autoWords.find(language);
+        return found != settings.autoWords.end() &&
+            std::any_of(found->second.begin(), found->second.end(), [&](const std::wstring &known)
+                        { return lower(known) == lower(candidate); });
+    };
     // Valid words from either selected language are never changed.
     for (auto &[language, d] : dictionaries)
-        if (d.rank(word))
+        if (d.rank(word) || personal(language, word))
             return {};
     std::optional<AutoSuggestion> candidate;
     int matches = 0;
@@ -168,7 +184,7 @@ std::optional<AutoSuggestion> AutoCorrector::suggest(const std::wstring &typed,
         auto converted = convert(word, layouts[source], layouts[i], true);
         if (converted == word || !safeAutoWord(converted, settings.autoMinLength))
             continue;
-        int rank = dictionary->second.rank(converted);
+        int rank = personal(dictionary->first, converted) ? 1 : dictionary->second.rank(converted);
         if (!rank)
             continue;
         if (++matches > 1)

src/core.h

@@ -1,6 +1,7 @@
 #pragma once
 #include <cstdint>
 #include <functional>
+#include <map>
 #include <optional>
 #include <string>
 #include <vector>
@@ -58,6 +59,7 @@ struct Settings
     std::wstring autoSuffixChars = L")]}»”’\".,!?:;";
     std::vector<std::wstring> autoLanguages{L"en", L"uk"};
     std::vector<std::wstring> autoNever;
+    std::map<std::wstring, std::vector<std::wstring>> autoWords;
     std::vector<std::wstring> autoExcluded{
         L"Code", L"rider64",  L"devenv", L"WindowsTerminal", L"cmd",       L"powershell", L"pwsh",
         L"Far",  L"ConEmu64", L"putty",  L"KeePass",         L"KeePassXC", L"1Password",  L"Bitwarden"};

src/main.cpp

@@ -45,12 +45,15 @@ int WINAPI wWinMain(HINSTANCE instance, HINSTANCE, PWSTR, int)
         cmd = 21;
     else if (arg == L"--exit")
         cmd = 99;
+    else if (arg == L"--check-update")
+        cmd = 23;
     LocalFree(argv);
     if (existing)
     {
         HWND window = FindWindowW(L"KSwitcher.Main", L"KSwitcher");
         if (window)
         {
+            if (cmd == 23) { DWORD pid{}; GetWindowThreadProcessId(window, &pid); AllowSetForegroundWindow(pid); }
             COPYDATASTRUCT data{1, sizeof(cmd), &cmd};
             DWORD_PTR result{};
             SendMessageTimeoutW(window, WM_COPYDATA, 0, (LPARAM)&data, SMTO_ABORTIFHUNG, 1000, &result);

src/screenshot_activation.cpp

@@ -83,8 +83,12 @@ public:
     ULONG STDMETHODCALLTYPE AddRef() override { return ++references; }
     ULONG STDMETHODCALLTYPE Release() override { auto count=--references; if(!count) delete this; return count; }
     HRESULT STDMETHODCALLTYPE Activate(LPCWSTR app,LPCWSTR args,const NotificationInput *,ULONG) override {
-        if(!app || std::wstring(app)!=AppId || !args || !validScreenshotToken(args)) return E_INVALIDARG;
+        if(!app || std::wstring(app)!=AppId || !args) return E_INVALIDARG;
-        auto path=target; auto command=L"\""+path+L"\" --open \"kswitcher-screenshot:"+args+L"\"";
+        const bool update=std::wstring(args)==L"check-update";
+        if(!update && !validScreenshotToken(args)) return E_INVALIDARG;
+        auto path=update ? (std::filesystem::path(target).parent_path()/L"KSwitcher.exe").wstring() : target;
+        auto command=update ? L"\""+path+L"\" --check-update" :
+            L"\""+path+L"\" --open \"kswitcher-screenshot:"+args+L"\"";
         STARTUPINFOW startup{sizeof(startup)}; PROCESS_INFORMATION process{};
         auto ok=CreateProcessW(path.c_str(),command.data(),nullptr,nullptr,FALSE,CREATE_SUSPENDED,nullptr,nullptr,&startup,&process);
         auto result=ok?S_OK:HRESULT_FROM_WIN32(GetLastError());

src/screenshot_notifications.cpp

@@ -181,5 +181,44 @@ bool notifyScreenshot(const Clip &clip)
 }
 std::string screenshotNotificationError() { return notificationError; }
 
+std::wstring updateToastXml(const std::wstring &version)
+{
+    return L"<toast launch=\"check-update\"><visual><binding template=\"ToastGeneric\">"
+           L"<text>KSwitcher update available</text><text>Version " + escapeXml(version) +
+           L" is available. Click to review and install.</text></binding></visual>"
+           L"<actions><action content=\"Review update\" arguments=\"check-update\" activationType=\"foreground\"/>"
+           L"<action content=\"Later\" arguments=\"dismiss\" activationType=\"system\"/></actions></toast>";
+}
+bool notifyUpdateAvailable(const std::wstring &version)
+{
+    try {
+        // Reuse the screenshot notification identity, Windows settings and COM activator.
+        registerScreenshotNotifications();
+        ComPtr<Notifications::IToastNotificationManagerStatics> manager;
+        String managerClass(L"Windows.UI.Notifications.ToastNotificationManager");
+        check(RoGetActivationFactory(managerClass.value,IID_PPV_ARGS(&manager)));
+        ComPtr<Notifications::IToastNotifier> notifier; String appId(AppId);
+        check(manager->CreateToastNotifierWithId(appId.value,&notifier));
+        Notifications::NotificationSetting setting{};
+        auto settingsResult=notifier->get_Setting(&setting);
+        if(settingsResult!=HRESULT_FROM_WIN32(ERROR_NOT_FOUND)) check(settingsResult);
+        if(setting!=Notifications::NotificationSetting_Enabled)
+            throw std::runtime_error("Windows notifications for KSwitcher Screenshot are disabled");
+        String documentClass(L"Windows.Data.Xml.Dom.XmlDocument"); ComPtr<IInspectable> instance;
+        check(RoActivateInstance(documentClass.value,&instance));
+        ComPtr<Xml::IXmlDocument> document; check(instance.As(&document));
+        ComPtr<Xml::IXmlDocumentIO> io; check(document.As(&io));
+        String content(updateToastXml(version)); check(io->LoadXml(content.value));
+        ComPtr<Notifications::IToastNotificationFactory> factory; String toastClass(L"Windows.UI.Notifications.ToastNotification");
+        check(RoGetActivationFactory(toastClass.value,IID_PPV_ARGS(&factory)));
+        ComPtr<Notifications::IToastNotification> toast; check(factory->CreateToastNotification(document.Get(),&toast));
+        // Repeated submissions replace the existing update card in Notification Center.
+        ComPtr<Notifications::IToastNotification2> tagged; check(toast.As(&tagged));
+        String tag(L"update"),group(L"KSwitcher"); check(tagged->put_Tag(tag.value)); check(tagged->put_Group(group.value));
+        check(notifier->Show(toast.Get()));
+        return true;
+    } catch(const std::exception &e) { log(L"Update toast: "+wide(e.what())); return false; }
+}
+
 
 }

src/storage.cpp

@@ -92,6 +92,17 @@ void validateSettings(const Settings &s)
             throw std::runtime_error("Unsupported auto-correction language");
     if (s.autoNever.size() > 10000 || s.autoExcluded.size() > 1000)
         throw std::runtime_error("Too many auto-correction exceptions");
+    for (const auto &[language, words] : s.autoWords)
+    {
+        std::wstring alphabet = language == L"en" ? L"abcdefghijklmnopqrstuvwxyz" :
+            language == L"uk" ? L"абвгґдеєжзиіїйклмнопрстуфхцчшщьюя" :
+            language == L"ru" ? L"абвгдеёжзийклмнопрстуфхцчшщъыьэюя" : L"";
+        if (alphabet.empty() || words.size() > 10000)
+            throw std::runtime_error("Invalid personal dictionary language or too many words");
+        for (const auto &word : words)
+            if (word.empty() || word.size() > 32 || lower(word).find_first_not_of(alphabet) != word.npos)
+                throw std::runtime_error("Personal words must contain 1-32 letters of their selected language");
+    }
     if (s.maxItems < 10 || s.maxItems > 10000 || s.maxMiB < 1 || s.maxMiB > 2048 || s.maxImageMiB < 1 ||
         s.maxImageMiB > 64)
         throw std::runtime_error("History limits: 10–10000 items, 1–2048 MiB total, 1–64 MiB per image");
@@ -143,6 +154,10 @@ Settings decodeSettings(const Bytes &bytes, const std::vector<Layout> &layouts)
     s.autoMinLength = j.value("autoCorrectMinLength", 3);
     s.autoPrefixChars = str(j, "autoCorrectPrefixChars", s.autoPrefixChars);
     s.autoSuffixChars = str(j, "autoCorrectSuffixChars", s.autoSuffixChars);
+    if (j.contains("autoCorrectWords"))
+        for (auto &[language, words] : j.at("autoCorrectWords").items())
+            for (auto &word : words)
+                s.autoWords[wide(language)].push_back(lower(wide(word.get<std::string>())));
     for (auto pair : {std::pair{"autoCorrectLanguages", &s.autoLanguages},
                       {"autoCorrectNever", &s.autoNever},
                       {"autoCorrectExcludedApps", &s.autoExcluded}})
@@ -229,6 +244,13 @@ Bytes encodeSettings(const Settings &s)
     j["autoCorrectMinLength"] = s.autoMinLength;
     j["autoCorrectPrefixChars"] = utf8(s.autoPrefixChars);
     j["autoCorrectSuffixChars"] = utf8(s.autoSuffixChars);
+    j["autoCorrectWords"] = Json::object();
+    for (const auto &[language, words] : s.autoWords)
+    {
+        auto &items = j["autoCorrectWords"][utf8(language)] = Json::array();
+        for (const auto &word : words)
+            items.push_back(utf8(lower(word)));
+    }
     for (auto pair : {std::pair{"autoCorrectLanguages", &s.autoLanguages},
                       {"autoCorrectNever", &s.autoNever},
                       {"autoCorrectExcludedApps", &s.autoExcluded}})

src/ui.cpp

@@ -71,17 +71,48 @@ void arrangeWindow(HWND w)
     RECT client{}; GetClientRect(w, &client);
     int extraWidth = layout->history ? std::max(0, int(client.right) - scale(w, layout->width)) : 0;
     int extraHeight = layout->history ? std::max(0, int(client.bottom) - scale(w, layout->height)) : 0;
+    struct Move { HWND child; RECT rect; };
+    std::vector<Move> moves;
     for (const auto &[child, r] : layout->controls)
     {
         int id = GetDlgCtrlID(child);
-        SetWindowPos(child, nullptr, scale(w, r.left) - layout->x,
+        RECT next{scale(w, r.left) - layout->x,
-                         scale(w, r.top) - layout->y + (id >= 110 && id <= 114 ? extraHeight : 0),
+                  scale(w, r.top) - layout->y + (id >= 110 && id <= 114 ? extraHeight : 0)};
-                         scale(w, r.right - r.left) + (id == 101 || id == 102 ? extraWidth : 0),
+        next.right = next.left + scale(w, r.right - r.left) + (id == 101 || id == 102 ? extraWidth : 0);
-                         scale(w, r.bottom - r.top) + (id == 102 ? extraHeight : 0),
+        next.bottom = next.top + scale(w, r.bottom - r.top) + (id == 102 ? extraHeight : 0);
-                         SWP_NOACTIVATE | SWP_NOZORDER);
+        RECT current{}; GetWindowRect(child, &current);
+        MapWindowPoints(nullptr, w, reinterpret_cast<POINT *>(&current), 2);
+        if (!EqualRect(&current, &next)) moves.push_back({child, next});
+    }
+    if (!moves.empty())
+    {
+        auto batch = BeginDeferWindowPos((int)moves.size());
+        for (const auto &move : moves)
+        {
+            if (!batch) break;
+            auto r = move.rect;
+            batch = DeferWindowPos(batch, move.child, nullptr, r.left, r.top, r.right-r.left, r.bottom-r.top,
+                                   SWP_NOACTIVATE | SWP_NOZORDER);
+        }
+        if (!batch || !EndDeferWindowPos(batch))
+            for (const auto &move : moves)
+            {
+                auto r = move.rect;
+                SetWindowPos(move.child, nullptr, r.left, r.top, r.right-r.left, r.bottom-r.top,
+                             SWP_NOACTIVATE | SWP_NOZORDER);
+            }
     }
     layout->arranging = false;
-    InvalidateRect(w, nullptr, TRUE);
+}
+void scrollWindow(HWND w, WindowLayout *layout, bool horizontal, int requested)
+{
+    SCROLLINFO info{sizeof(info), SIF_RANGE | SIF_PAGE};
+    GetScrollInfo(w, horizontal ? SB_HORZ : SB_VERT, &info);
+    int next = std::clamp(requested, info.nMin, std::max(info.nMin, info.nMax - std::max(0, (int)info.nPage - 1)));
+    int &position = horizontal ? layout->x : layout->y;
+    if (position == next) return;
+    position = next;
+    arrangeWindow(w);
 }
 void revealControl(HWND child)
 {
@@ -127,7 +158,7 @@ LRESULT CALLBACK layoutProc(HWND w, UINT msg, WPARAM wp, LPARAM lp, UINT_PTR, DW
         bool vertical = msg == WM_VSCROLL;
         SCROLLINFO info{sizeof(info), SIF_ALL};
         GetScrollInfo(w, vertical ? SB_VERT : SB_HORZ, &info);
-        int &position = vertical ? layout->y : layout->x;
+        int position = vertical ? layout->y : layout->x;
         switch (LOWORD(wp))
         {
         case SB_LINEUP: position -= scale(w, 32); break;
@@ -138,7 +169,7 @@ LRESULT CALLBACK layoutProc(HWND w, UINT msg, WPARAM wp, LPARAM lp, UINT_PTR, DW
         case SB_BOTTOM: position = info.nMax; break;
         case SB_THUMBTRACK: case SB_THUMBPOSITION: position = info.nTrackPos; break;
         }
-        arrangeWindow(w);
+        scrollWindow(w, layout, !vertical, position);
         return 0;
     }
     if (layout->scrolling && (msg == WM_MOUSEWHEEL || msg == WM_MOUSEHWHEEL))
@@ -148,8 +179,9 @@ LRESULT CALLBACK layoutProc(HWND w, UINT msg, WPARAM wp, LPARAM lp, UINT_PTR, DW
         remainder += GET_WHEEL_DELTA_WPARAM(wp);
         int steps = remainder / WHEEL_DELTA;
         remainder %= WHEEL_DELTA;
-        (horizontal ? layout->x : layout->y) += steps * scale(w, 48) * (msg == WM_MOUSEHWHEEL ? 1 : -1);
+        if (steps)
-        arrangeWindow(w);
+            scrollWindow(w, layout, horizontal, (horizontal ? layout->x : layout->y) +
+                         steps * scale(w, 48) * (msg == WM_MOUSEHWHEEL ? 1 : -1));
         return 0;
     }
     if (msg == WM_NCDESTROY)
@@ -276,7 +308,7 @@ HWND makeWindow(App &app, const wchar_t *cls, const wchar_t *title, WNDPROC proc
     RegisterClassW(&wc);
     UINT dpi = GetDpiForSystem();
     RECT rect{0, 0, MulDiv(width, dpi, 96), MulDiv(height, dpi, 96)};
-    DWORD style = WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_MINIMIZEBOX | extra;
+    DWORD style = WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_MINIMIZEBOX | WS_CLIPCHILDREN | extra;
     if (resizable) style |= WS_THICKFRAME | WS_MAXIMIZEBOX;
     AdjustWindowRectExForDpi(&rect, style, FALSE, WS_EX_APPWINDOW, dpi);
     POINT cursor{};
@@ -977,6 +1009,15 @@ LRESULT CALLBACK autoOptionsProc(HWND w, UINT msg, WPARAM wp, LPARAM lp)
             if (checked(w, 403))
                 draft.autoLanguages.push_back(L"ru");
             draft.autoNever = parseCommaList(value(w, 405));
+            for (auto [id, language] : {std::pair{411, L"en"}, {412, L"uk"}, {413, L"ru"}})
+            {
+                auto text = lower(value(w, id));
+                std::replace(text.begin(), text.end(), L'\n', L',');
+                auto words = parseCommaList(text);
+                std::sort(words.begin(), words.end());
+                words.erase(std::unique(words.begin(), words.end()), words.end());
+                draft.autoWords[language] = std::move(words);
+            }
             draft.autoExcluded = parseCommaList(value(w, 404));
             draft.autoPrefixChars = value(w, 408);
             draft.autoSuffixChars = value(w, 409);
@@ -985,6 +1026,7 @@ LRESULT CALLBACK autoOptionsProc(HWND w, UINT msg, WPARAM wp, LPARAM lp)
             validateSettings(draft);
             view->settings->draft.autoLanguages = draft.autoLanguages;
             view->settings->draft.autoNever = draft.autoNever;
+            view->settings->draft.autoWords = draft.autoWords;
             view->settings->draft.autoExcluded = draft.autoExcluded;
             view->settings->draft.autoMaxRank = draft.autoMaxRank;
             view->settings->draft.autoMinLength = draft.autoMinLength;
@@ -1031,13 +1073,20 @@ void showAutoOptions(HWND parent, SettingsView *v)
     for (auto &lang : v->draft.autoLanguages)
         check(w, lang == L"en" ? 401 : lang == L"uk" ? 402 : 403, true);
     label(w, L"Excluded applications (process names, comma-separated)", 18, 94, 525);
-    edit(w, 404, 18, 122, 524, 84, ES_MULTILINE | WS_VSCROLL | ES_AUTOVSCROLL);
+    edit(w, 404, 18, 122, 524, 52, ES_MULTILINE | WS_VSCROLL | ES_AUTOVSCROLL);
     value(w, 404, commaList(v->draft.autoExcluded));
-    label(w, L"Personal dictionary: never correct these words (comma-separated)", 18, 220, 525);
+    label(w, L"Never correct these words (comma-separated)", 18, 184, 525);
-    edit(w, 405, 18, 248, 524, 84, ES_MULTILINE | WS_VSCROLL | ES_AUTOVSCROLL);
+    edit(w, 405, 18, 212, 524, 52, ES_MULTILINE | WS_VSCROLL | ES_AUTOVSCROLL);
     value(w, 405, commaList(v->draft.autoNever));
-    label(w, L"Corrects after Space and a short pause.", 18, 344, 525);
+    label(w, L"My dictionary: correct words, separated by commas or new lines", 18, 276, 525);
-    label(w, L"Undo skips this word until KSwitcher restarts.", 18, 366, 525);
+    for (auto [id, language] : {std::pair{411, L"en"}, {412, L"uk"}, {413, L"ru"}})
+    {
+        int x = 18 + (id - 411) * 178;
+        label(w, id == 411 ? L"English" : id == 412 ? L"Ukrainian" : L"Russian", x, 302, 168);
+        edit(w, id, x, 328, 168, 56, ES_MULTILINE | WS_VSCROLL | ES_AUTOVSCROLL | ES_WANTRETURN);
+        auto words = v->draft.autoWords.find(language);
+        if (words != v->draft.autoWords.end()) value(w, id, commaList(words->second));
+    }
     label(w, L"Frequency rank limit (0 = entire dictionary)", 18, 400, 390);
     edit(w, 406, 420, 396, 122, 26, ES_NUMBER);
     value(w, 406, std::to_wstring(v->draft.autoMaxRank));

src/update.h

@@ -2,9 +2,12 @@
 #include "platform.h"
 namespace ks
 {
-inline constexpr wchar_t AppVersion[] = L"0.6.8";
+inline constexpr wchar_t AppVersion[] = L"0.6.10";
 inline constexpr UINT UpdateMessage = WM_APP + 7;
 inline constexpr UINT UpdateCheckIntervalMs = 6 * 60 * 60 * 1000;
+inline constexpr UINT UpdateNotificationRetryMs = 5 * 60 * 1000;
+bool notifyUpdateAvailable(const std::wstring &version);
+std::wstring updateToastXml(const std::wstring &version);
 struct UpdateResult
 {
     std::wstring state, version, error;

tests/input.cpp

@@ -4,8 +4,17 @@
 #include <commctrl.h>
 #include <iostream>
 #include <cmath>
+LRESULT CALLBACK countControlMoves(HWND w, UINT message, WPARAM wp, LPARAM lp, UINT_PTR, DWORD_PTR data)
+{
+    if (message == WM_WINDOWPOSCHANGING) ++*reinterpret_cast<int *>(data);
+    return DefSubclassProc(w, message, wp, lp);
+}
 namespace ks {
 struct InputRegressionAccess {
+    static inline bool delivery = true;
+    static inline int notifications = 0;
+    static bool notify(const std::wstring &) { ++notifications; return delivery; }
+    static void notificationSetup(App &a) { a.updateNotifier = notify; }
     static void setup(App &a) { a.hookBindings = {{Toggle,{MOD_CONTROL,VK_F12}}, {Case,{MOD_CONTROL|MOD_SHIFT,'U'}}}; }
     static bool updateTimer(App &a) {
         a.updateRunning=true; // Exercise timer scheduling without launching a network request.
@@ -42,6 +51,7 @@ int main(int argc, char **argv) {
         {
             ks::App app(GetModuleHandleW(nullptr),true,temp);
             ks::InputRegressionAccess::setup(app);
+            ks::InputRegressionAccess::notificationSetup(app);
             // Message-only window: no hooks, synthetic input, clipboard changes or visible editor.
             app.window=CreateWindowExW(0,L"STATIC",L"Input tests",0,0,0,0,0,HWND_MESSAGE,nullptr,nullptr,nullptr);
             require(app.window!=nullptr,"message-only test window");
@@ -49,8 +59,18 @@ int main(int argc, char **argv) {
             require(ks::InputRegressionAccess::updateTimer(app),"update timer rearms and avoids overlapping checks");
             require(ks::InputRegressionAccess::updateResult(app,L"available",L"99.0.0")==L"99.0.0","background update records announced version");
             require(ks::InputRegressionAccess::updateResult(app,L"available",L"99.0.0")==L"99.0.0","same available version remains deduplicated");
+            require(ks::InputRegressionAccess::notifications==1,"successful background notification is submitted only once");
             require(ks::InputRegressionAccess::updateResult(app,L"error",L"")==L"99.0.0","network error preserves announced version");
             require(ks::InputRegressionAccess::updateResult(app,L"available",L"99.0.1")==L"99.0.1","new version can be announced after an error");
+            ks::InputRegressionAccess::delivery=false;
+            require(ks::InputRegressionAccess::updateResult(app,L"available",L"99.0.2")==L"99.0.1","failed notification is not marked delivered");
+            require(KillTimer(app.window,5)!=FALSE,"failed notification schedules a retry");
+            ks::InputRegressionAccess::delivery=true;
+            require(ks::InputRegressionAccess::updateResult(app,L"available",L"99.0.2")==L"99.0.2","notification can succeed on retry");
+            auto toast=ks::updateToastXml(L"1&2<3\"");
+            require(toast.find(L"1&amp;2&lt;3&quot;")!=toast.npos,"update version is XML escaped");
+            require(toast.find(L"launch=\"check-update\"")!=toast.npos && toast.find(L"arguments=\"check-update\"")!=toast.npos,
+                    "toast body and action both review the update instead of installing automatically");
             for(int variant=0;variant<3;++variant) for(int icon=0;icon<15;++icon)
                 for(int size:{22,44,55}) {
                     auto handle=(HICON)LoadImageW(app.instance,MAKEINTRESOURCEW(icon<9?300+variant*10+icon:400+variant*10+icon-9),IMAGE_ICON,size,size,0);
@@ -566,6 +586,29 @@ int main(int argc, char **argv) {
             fitted=ks::fitWindowRect({2000,2000,2600,2400},{-1920,0,0,1080});
             require(fitted.left==-600&&fitted.top==680&&fitted.right==0,"negative-coordinate monitor supported");
             ks::showSettings(app,false);
+            SendMessageW(app.settingsWindow,WM_COMMAND,255,0);
+            auto autoOptions=FindWindowW(L"KSwitcher.AutoOptions",nullptr);
+            require(autoOptions!=nullptr,"auto-correction options open");
+            ShowWindow(autoOptions,SW_HIDE);
+            for(int id:{411,412,413}) {
+                RECT control{},client{};
+                GetWindowRect(GetDlgItem(autoOptions,id),&control);
+                MapWindowPoints(nullptr,autoOptions,reinterpret_cast<POINT*>(&control),2);
+                GetClientRect(autoOptions,&client);
+                require(control.left>=0&&control.top>=0&&control.right<=client.right&&control.bottom<=client.bottom,
+                        "personal dictionary field fits options window");
+            }
+            SetDlgItemTextW(autoOptions,412,L"Релізик\r\nрелізик, словечко");
+            SendMessageW(autoOptions,WM_COMMAND,IDOK,0);
+            require(!IsWindow(autoOptions),"personal words accepted without file editing");
+            SendMessageW(app.settingsWindow,WM_COMMAND,255,0);
+            autoOptions=FindWindowW(L"KSwitcher.AutoOptions",nullptr);
+            ShowWindow(autoOptions,SW_HIDE);
+            wchar_t personalWords[128]{};
+            GetDlgItemTextW(autoOptions,412,personalWords,128);
+            require(std::wstring(personalWords)==L"релізик, словечко",
+                    "personal dictionary normalizes case, newlines and duplicate words");
+            SendMessageW(autoOptions,WM_COMMAND,IDCANCEL,0);
             if (!app.history) app.history=std::make_unique<ks::History>(temp/L"history-layout");
             ks::showHistory(app,false);
             auto history=app.historyWindow;
@@ -640,8 +683,27 @@ int main(int argc, char **argv) {
             require(scroll.nMax+1>(int)scroll.nPage,"small settings window has vertical scrolling");
             GetScrollInfo(settings,SB_HORZ,&scroll);
             require(scroll.nMax+1>(int)scroll.nPage,"small settings window has horizontal scrolling");
+            int controlMoves = 0;
+            auto trackedControl = GetDlgItem(settings,201);
+            SetWindowSubclass(trackedControl,countControlMoves,99,(DWORD_PTR)&controlMoves);
+            SendMessageW(settings,WM_VSCROLL,SB_TOP,0);
+            SendMessageW(settings,WM_HSCROLL,SB_LEFT,0);
+            controlMoves=0;
+            ValidateRect(settings,nullptr);
+            SendMessageW(settings,WM_MOUSEWHEEL,MAKEWPARAM(0,WHEEL_DELTA),0);
+            require(controlMoves==0 && !GetUpdateRect(settings,nullptr,FALSE),"wheel at top does not move controls or erase the window");
+            SendMessageW(settings,WM_MOUSEWHEEL,MAKEWPARAM(0,WORD(short(-WHEEL_DELTA/2))),0);
+            require(controlMoves==0,"partial wheel step does not rearrange controls");
+            SendMessageW(settings,WM_MOUSEWHEEL,MAKEWPARAM(0,WORD(short(-WHEEL_DELTA/2))),0);
+            require(controlMoves==1,"wheel scroll batches each control movement once");
             SendMessageW(settings,WM_VSCROLL,SB_BOTTOM,0);
             SendMessageW(settings,WM_HSCROLL,SB_RIGHT,0);
+            controlMoves=0;
+            SendMessageW(settings,WM_MOUSEWHEEL,MAKEWPARAM(0,-WHEEL_DELTA),0);
+            SendMessageW(settings,WM_MOUSEHWHEEL,MAKEWPARAM(0,WHEEL_DELTA),0);
+            require(controlMoves==0,"wheel at bottom and right boundaries does not rearrange controls");
+            require((GetWindowLongPtrW(settings,GWL_STYLE)&WS_CLIPCHILDREN)!=0,"parent background excludes child controls");
+            RemoveWindowSubclass(trackedControl,countControlMoves,99);
             GetClientRect(settings,&client);
             GetWindowRect(GetDlgItem(settings,IDCANCEL),&cancel);
             MapWindowPoints(nullptr,settings,(POINT*)&cancel,2);

tests/integration.cpp

@@ -3,6 +3,17 @@
 #include <fstream>
 #include <commctrl.h>
 
+namespace ks
+{
+struct InputRegressionAccess
+{
+    static bool deferring(App &app)
+    {
+        std::lock_guard lock(app.stateMutex);
+        return app.typingTarget != nullptr;
+    }
+};
+}
 namespace
 {
 ks::App *app{};
@@ -11,6 +22,7 @@ ks::Clip saved;
 bool captured = false, failed = false;
 int stage = 0, ru = -1, en = -1;
 size_t punctuationCase = 0;
+bool typeDuringCorrection = false, typedDuringCorrection = false;
 const std::vector<std::pair<std::wstring, std::wstring>> punctuationCases{
     {L"(ljvf) ", L"(дома) "}, {L"[ljvf] ", L"[дома] "}, {L"{ljvf} ", L"{дома} "},
     {L"ljvf: ", L"дома: "},   {L"ljvf; ", L"дома; "},   {L"#ljvf%; ", L"#дома%; "}};
@@ -25,7 +37,14 @@ size_t diagnosticStart{};
 void require(bool ok, const char *name)
 {
     if (!ok)
+    {
+        wchar_t observed[2048]{};
+        GetWindowTextW(field, observed, 2048);
+        std::cerr << "Editor at failure: " << ks::utf8(observed)
+                  << "; foregroundSame=" << (GetForegroundWindow() == host)
+                  << "; inputVersion=" << app->inputVersion.load() << '\n';
         throw std::runtime_error(name);
+    }
     std::cout << "PASS " << name << '\n';
 }
 std::wstring text()
@@ -80,7 +99,26 @@ LRESULT CALLBACK procedure(HWND w, UINT msg, WPARAM wp, LPARAM lp)
             if (GetTickCount64() > deadline)
                 throw std::runtime_error("Native integration timed out");
             if (app->busy)
+            {
+                if (typeDuringCorrection && ks::InputRegressionAccess::deferring(*app))
+                {
+                    typeDuringCorrection = false;
+                    typedDuringCorrection = true;
+                    std::vector<INPUT> inputs;
+                    for (auto [key, up] : std::vector<std::pair<WORD, bool>>{
+                             {'F', false}, {'F', true}, {VK_LSHIFT, false},
+                             {'F', false}, {'F', true}, {VK_LSHIFT, true},
+                             {'B', false}, {'B', true}, {VK_BACK, false}, {VK_BACK, true}})
+                    {
+                        auto input = ks::keyboardInput(key, up ? KEYEVENTF_KEYUP : 0);
+                        input.ki.dwExtraInfo = 123; // External input must traverse the actual hook.
+                        inputs.push_back(input);
+                    }
+                    require(SendInput((UINT)inputs.size(), inputs.data(), sizeof(INPUT)) == inputs.size(),
+                            "concurrent typing submitted during selection/paste transaction");
+                }
                 return 0;
+            }
             switch (stage++)
             {
             case 0:
@@ -242,6 +280,41 @@ LRESULT CALLBACK procedure(HWND w, UINT msg, WPARAM wp, LPARAM lp)
                 break;
             case 17:
                 require(text() == punctuationCases.back().first, "undo preserves custom punctuation");
+                [[fallthrough]];
+            case 20:
+                if (!captured)
+                {
+                    saved = ks::readClipboard(app->window, 64 * 1024 * 1024);
+                    captured = true;
+                    app->ownSequence = ks::writeClipboard(app->window, ks::textClip(sentinel));
+                }
+                app->settings.autoCorrect = true;
+                app->settings.switchLayout = true;
+                app->settings.autoLanguages = {L"en", L"ru"};
+                app->settings.cycle = {app->layouts[en].id, app->layouts[ru].id};
+                app->autoCorrector = ks::AutoCorrector{};
+                ActivateKeyboardLayout(app->layouts[en].handle, 0);
+                prepare(L"ghbdtn ", false);
+                record(L"ghbdtn ");
+                typeDuringCorrection = true;
+                app->transform(ks::AutoCorrect);
+                stage = 18;
+                break;
+            case 18:
+                require(typedDuringCorrection && text() == L"привет аА",
+                        "typing during correction replays in order with shift and backspace in new layout");
+                require(ks::readClipboard(app->window).text() == sentinel,
+                        "concurrent typing preserves clipboard restoration");
+                ActivateKeyboardLayout(app->layouts[en].handle, 0);
+                prepare(L"OLDghbdtn ", false);
+                record(L"ghbdtn ");
+                typedDuringCorrection = false;
+                typeDuringCorrection = true;
+                app->transform(ks::AutoCorrect);
+                break;
+            case 19:
+                require(typedDuringCorrection && text() == L"OLDghbdtn fF",
+                        "rejected correction collapses selection before replaying typing in original layout");
                 finish();
                 break;
             }
@@ -366,6 +439,8 @@ int main(int argc, char **argv)
                 CreateWindowW(L"EDIT", L"", WS_CHILD | WS_VISIBLE | WS_BORDER | ES_MULTILINE | ES_WANTRETURN,
                               20, 20, 590, 230, host, nullptr, cls.hInstance, nullptr);
             deadline = GetTickCount64() + 30000;
+            if (argc > 1 && std::string(argv[1]) == "--typing-only")
+                stage = 20;
             SetTimer(host, 1, 100, nullptr);
             app->execute();
         }

tests/screenshot_registration.cpp

@@ -3,6 +3,14 @@
 #include <shlobj.h>
 #include <iostream>
 static std::wstring programs;
+static std::wstring activationExecutable, activationCommand;
+static int activationCalls{};
+static BOOL WINAPI testCreateProcess(LPCWSTR path, LPWSTR command, LPSECURITY_ATTRIBUTES,
+    LPSECURITY_ATTRIBUTES, BOOL, DWORD, LPVOID, LPCWSTR, LPSTARTUPINFOW, LPPROCESS_INFORMATION)
+{
+    ++activationCalls; activationExecutable=path; activationCommand=command;
+    SetLastError(ERROR_CANCELLED); return FALSE; // Inspect activation without starting any program.
+}
 static HRESULT testKnownFolder(REFKNOWNFOLDERID, DWORD, HANDLE, PWSTR *out)
 {
     *out=(PWSTR)CoTaskMemAlloc((programs.size()+1)*sizeof(wchar_t));
@@ -10,8 +18,10 @@ static HRESULT testKnownFolder(REFKNOWNFOLDERID, DWORD, HANDLE, PWSTR *out)
     wcscpy(*out,programs.c_str()); return S_OK;
 }
 #define SHGetKnownFolderPath testKnownFolder
+#define CreateProcessW testCreateProcess
 #include "../src/screenshot_activation.cpp"
 #undef SHGetKnownFolderPath
+#undef CreateProcessW
 int main()
 {
     CoInitializeEx(nullptr,COINIT_APARTMENTTHREADED);
@@ -45,6 +55,18 @@ int main()
         valid=id.vt==VT_CLSID && *id.puuid==ks::ActivatorId; PropVariantClear(&id);
         if(!valid) throw std::runtime_error("shortcut activator missing");
         ks::registerScreenshotNotifications(); // Registration is safe to repeat.
+        ks::Activator activator(helper.wstring(),false);
+        activator.Activate(L"HrynCo.KSwitcher.Screenshot",L"check-update",nullptr,0);
+        auto main=(helper.parent_path()/L"KSwitcher.exe").wstring();
+        if(activationCalls!=1 || activationExecutable!=main || activationCommand!=L"\""+main+L"\" --check-update")
+            throw std::runtime_error("update toast must open review, never install automatically");
+        if(activator.Activate(L"other-app",L"check-update",nullptr,0)!=E_INVALIDARG ||
+           activator.Activate(L"HrynCo.KSwitcher.Screenshot",L"--install",nullptr,0)!=E_INVALIDARG || activationCalls!=1)
+            throw std::runtime_error("invalid notification activation must not launch a process");
+        const wchar_t *token=L"12345678-1234-1234-1234-123456789abc";
+        activator.Activate(L"HrynCo.KSwitcher.Screenshot",token,nullptr,0);
+        if(activationCalls!=2 || activationExecutable!=helper.wstring() || activationCommand.find(token)==activationCommand.npos)
+            throw std::runtime_error("screenshot activation must retain its existing route");
         std::cout<<"Passed isolated screenshot registration checks\n";
     } catch(const std::exception &e) { std::cerr<<e.what()<<'\n'; result=1; }
     RegOverridePredefKey(HKEY_CURRENT_USER,nullptr);

tests/tests.cpp

@@ -241,6 +241,37 @@ int main(int argc, char **argv)
         require(corrector.memoryBytes() < 3 * 1024 * 1024, "two dictionaries fit within 3 MiB");
         require(!ks::autoCorrectionAllowed(nullptr, autoSettings), "missing focused editor fails closed");
         ks::AutoCorrector missing;
+        {
+            ks::AutoCorrector supplemental;
+            auto options = autoSettings;
+            options.autoLanguages = {L"en", L"uk", L"ru"};
+            options.cycle = {L"en", L"uk", L"ru"};
+            supplemental.configure(L"dictionaries", options.autoLanguages);
+            auto release = supplemental.suggest(L"релыз ", 1, layouts, options);
+            require(release && release->text == L"реліз " && release->target == 2,
+                    "supplemental Ukrainian release word corrects from Russian layout");
+            require(!supplemental.suggest(L"реліз ", 2, layouts, options),
+                    "correct Ukrainian release word stays unchanged");
+            require(!supplemental.suggest(L"релиз ", 1, layouts, options),
+                    "valid Russian release word stays unchanged");
+            options.autoMaxRank = 50000;
+            require(!supplemental.suggest(L"релыз ", 1, layouts, options),
+                    "supplemental vocabulary respects explicit frequency limit");
+            options.autoWords[L"uk"] = {L"релізик"};
+            options.autoMaxRank = 1;
+            auto custom = supplemental.suggest(L"релызик ", 1, layouts, options);
+            require(custom && custom->text == L"релізик " && custom->target == 2,
+                    "personal word enables correction without editing dictionary files");
+            require(!supplemental.suggest(L"релізик ", 2, layouts, options),
+                    "personal word is protected from correction");
+            options.autoNever = {L"релызик"};
+            require(!supplemental.suggest(L"релызик ", 1, layouts, options),
+                    "never-correct list takes precedence over personal word");
+            options.autoNever.clear();
+            options.cycle = {L"en", L"ru"};
+            require(!supplemental.suggest(L"релызик ", 1, layouts, options),
+                    "personal dictionary respects disabled target layouts");
+        }
         rejects([&] { missing.configure(L"missing-dictionaries", {L"en"}); }, "missing dictionary rejected");
         require(ks::convertTo(L"ghbdtn", layouts, 1, 0) == L"привет", "hint conversion");
         require(ks::convertTo(L"привет", layouts, 1, 1) == L"привет", "same source is unchanged");
@@ -335,6 +366,25 @@ int main(int argc, char **argv)
         auto temp = std::filesystem::temp_directory_path() /
                     (L"KSwitcher-tests-" + std::to_wstring(GetCurrentProcessId()));
         std::filesystem::create_directories(temp);
+        {
+            auto folder = temp / L"dictionaries";
+            std::filesystem::create_directories(folder);
+            auto put = [&](const wchar_t *name, const std::wstring &text)
+            {
+                auto data = ks::utf8(text);
+                ks::atomicWrite(folder / name, ks::Bytes(data.begin(), data.end()));
+            };
+            put(L"en.txt", L"zoo\t3\nhello\t99\nhello\t1\n");
+            put(L"uk.txt", L"дім\t3\n");
+            ks::AutoCorrector edited;
+            edited.configure(folder, {L"en", L"uk"});
+            auto options = ks::Settings{};
+            options.cycle = {L"en", L"uk"};
+            options.autoMaxRank = 1;
+            auto correction = edited.suggest(L"руддщ ", 2, layouts, options);
+            require(correction && correction->text == L"hello ",
+                    "unsorted dictionaries and duplicates load using lowest duplicate rank");
+        }
         ks::Pixels pixels{2, 1, {10, 20, 30, 255, 40, 50, 60, 255}};
         ks::Clip firstImage{{ks::imageDib(pixels), {0, L"Ole Private Data", {1, 2, 3}}}};
         auto thumbnail = ks::decodeImage(firstImage, 1, 1);
@@ -384,11 +434,16 @@ int main(int argc, char **argv)
         settings.autoPrefixChars = L"(#";
         settings.autoSuffixChars = L");%";
         settings.autoNever = {L"myWord"};
+        settings.autoWords = {{L"uk", {L"релізик"}}, {L"en", {L"kswitcher"}}};
         settings.autoExcluded = {L"Code.exe"};
         settings.cycle = {L"en", L"uk"};
         settings.snippets = {{L";address", L"Line 1\r\n{cursor}Line 2"}};
         ks::saveSettings(temp / L"settings.json", settings);
         auto restored = ks::loadSettings(temp / L"settings.json", {});
+        require(restored.autoWords == settings.autoWords, "personal dictionaries survive settings roundtrip");
+        auto invalidWords = settings;
+        invalidWords.autoWords[L"uk"] = {L"hello"};
+        rejects([&] { ks::validateSettings(invalidWords); }, "personal dictionary rejects wrong language letters");
         require(ks::encodeSettings(ks::decodeSettings(ks::encodeSettings(settings), {})) == ks::encodeSettings(settings),
                 "configurator snapshot survives serialization without changing the concurrency token");
         rejects([&] { ks::decodeSettings(ks::Bytes{'{', '}'}, {}); },

tools/build-dictionaries.py

@@ -3,6 +3,8 @@ from pathlib import Path
 import urllib.request, hashlib, json
 ROOT=Path(__file__).resolve().parents[1]/'dictionaries'
 REV='525f9b560de45753a5ea01069454e72e9aa541c6'
+# Supplemental vocabulary has no corpus frequency: rank after the 50k source list.
+SUPPLEMENTAL={'uk': {'реліз': 50001}}
 ROOT.mkdir(exist_ok=True)
 manifest={}
 for lang in ('en','uk','ru'):
@@ -15,8 +17,12 @@ for lang in ('en','uk','ru'):
         if not (2<=len(word)<=40 and all(c in alphabet for c in word)):continue
         if int(count)<5:continue
         rows.setdefault(word,rank)
+    for word,rank in SUPPLEMENTAL.get(lang,{}).items():
+        rows.setdefault(word,rank)
     out=''.join(f'{word}\t{rows[word]}\n' for word in sorted(rows))
     (ROOT/f'{lang}.txt').write_bytes(out.encode('utf-8'))
     manifest[lang]={'source':url,'sourceSha256':hashlib.sha256(data).hexdigest(),'words':len(rows),'bytes':len(out.encode()),'sha256':hashlib.sha256(out.encode()).hexdigest()}
+    if lang in SUPPLEMENTAL:
+        manifest[lang]['supplementalWords']=SUPPLEMENTAL[lang]
 (ROOT/'sources.json').write_text(json.dumps(manifest,indent=2)+'\n',encoding='utf-8')
 print(json.dumps(manifest,indent=2))