Fixed crash problem when computer is locked

CMakeLists.txt

@@ -1,5 +1,5 @@
 cmake_minimum_required(VERSION 3.6.0)
-project(win-vind VERSION 5.13.0)
+project(win-vind VERSION 5.13.1)
 set(INTERNAL_VERSION ${PROJECT_VERSION}.0)
 
 if(NOT CMAKE_BUILD_TYPE)

libs/fluent_tray/fluent_tray.hpp

@@ -937,26 +937,24 @@ namespace fluent_tray
             }
 
             POINT pos ;
-            if(!GetCursorPos(&pos)) {
-                return false ;
-            }
-
-            if(pos.x != previous_mouse_pos_.x || pos.y != previous_mouse_pos_.y) {
-                // The mouse cursor is moved, so switch to the mouse-mode.
-                for(int i = 0 ; i < static_cast<int>(menus_.size()) ; i ++) {
-                    auto& menu = menus_[i] ;
-                    auto detected_hwnd = WindowFromPoint(pos) ;
-                    if(!detected_hwnd) {
-                        return false ;
-                    }
-                    // Checks whether the mouse cursor is over the menu or not.
-                    if(detected_hwnd == menu.window_handle()) {
-                        // Start selection by key from the currently selected menu.
-                        select_index_ = i ;
-                        break ;
+            if(GetCursorPos(&pos)) {
+                if(pos.x != previous_mouse_pos_.x || pos.y != previous_mouse_pos_.y) {
+                    // The mouse cursor is moved, so switch to the mouse-mode.
+                    for(int i = 0 ; i < static_cast<int>(menus_.size()) ; i ++) {
+                        auto& menu = menus_[i] ;
+                        auto detected_hwnd = WindowFromPoint(pos) ;
+                        if(!detected_hwnd) {
+                            return false ;
+                        }
+                        // Checks whether the mouse cursor is over the menu or not.
+                        if(detected_hwnd == menu.window_handle()) {
+                            // Start selection by key from the currently selected menu.
+                            select_index_ = i ;
+                            break ;
+                        }
                     }
+                    previous_mouse_pos_ = pos ;
                 }
-                previous_mouse_pos_ = pos ;
             }
 
             if(select_index_ < 0) {
@@ -1422,7 +1420,10 @@ namespace fluent_tray
             if(!Shell_NotifyIconW(NIM_ADD, &icon_data_)) {
                 return false ;
             }
-            hide_menu_window() ;
+
+            if(!hide_menu_window()) {
+                return false ;
+            }
 
             return true ;
         }

src/bind/emu/motion.cpp

@@ -56,7 +56,9 @@ namespace vind
 
             auto solver = ihub.get_solver(Mode::EDI_NORMAL) ;
             while(true) {
-                pimpl->bg_.update() ;
+                if(!pimpl->bg_.update()) {
+                    continue ;
+                }
 
                 core::CmdUnit::SPtr input ;
                 std::uint16_t in_count ;
@@ -118,7 +120,9 @@ namespace vind
 
             auto solver = ihub.get_solver(Mode::EDI_NORMAL) ;
             while(true) {
-                pimpl->bg_.update() ;
+                if(!pimpl->bg_.update()) {
+                    continue ;
+                }
 
                 core::CmdUnit::SPtr input ;
                 std::uint16_t in_count ;
@@ -178,7 +182,9 @@ namespace vind
 
             auto solver = ihub.get_solver(Mode::EDI_NORMAL) ;
             while(true) {
-                pimpl->bg_.update() ;
+                if(!pimpl->bg_.update()) {
+                    continue ;
+                }
 
                 core::CmdUnit::SPtr input ;
                 std::uint16_t in_count ;

src/bind/emu/replacetext.cpp

@@ -66,7 +66,9 @@ namespace
             }
 
             while(true) {
-                bg_.update() ;
+                if(!bg_.update()) {
+                    continue ;
+                }
 
                 if(igate.is_pressed(KEYCODE_ESC)) {
                     return ;

src/bind/mode/command_mode.cpp

@@ -355,7 +355,9 @@ namespace vind
             auto result = SystemCall::SUCCEEDED ;
             ac.apply(core::get_enter_event(core::Mode::COMMAND)) ;
             while(true) {
-                pimpl->bg_.update() ;
+                if(!pimpl->bg_.update()) {
+                    continue ;
+                }
 
                 bool break_flag = false ;
                 do {

src/bind/mode/instant_mode.cpp

@@ -58,7 +58,9 @@ namespace vind
 
             auto res = SystemCall::SUCCEEDED ;
             while(true) {
-                pimpl->bg_.update() ;
+                if(!pimpl->bg_.update()) {
+                    continue ;
+                }
 
                 std::vector<core::CmdUnit::SPtr> inputs ;
                 std::vector<std::uint16_t> in_counts ;

src/bind/mouse/hinter.cpp

@@ -182,7 +182,9 @@ namespace vind
                     points, hint_texts, start_indices, mtxes) ;
 
             while(true) {
-                pimpl->bg_.update() ;
+                if(!pimpl->bg_.update()) {
+                    continue ;
+                }
 
                 // To use combined macros like <easyclick><click_left>,
                 // get the keys from the input queue rather than the mapped queue.

src/bind/mouse/jump_keybrd.cpp

@@ -70,7 +70,9 @@ namespace vind
             auto toggle_keys = igate.pressed_list() ;
 
             while(true) {
-                pimpl->bg_.update() ;
+                if(!pimpl->bg_.update()) {
+                    continue ;
+                }
 
                 core::CmdUnit::SPtr inputs ;
                 std::uint16_t count ;

src/bind/window/switch_win.cpp

@@ -60,7 +60,9 @@ namespace vind
             auto mode = core::get_global_mode() ;
 
             while(true) {
-                pimpl->bg_.update() ;
+                if(!pimpl->bg_.update()) {
+                    continue ;
+                }
 
                 bool break_flag = false ;
                 do {

src/bind/window/winresizer.cpp

@@ -234,7 +234,9 @@ namespace vind
 
             core::InstantKeyAbsorber ika ;
             while(true) {
-                pimpl->bg_.update() ;
+                if(!pimpl->bg_.update()) {
+                    continue ;
+                }
 
                 bool break_flag = false ;
                 do {

src/core/background.cpp

@@ -14,11 +14,19 @@ namespace vind
     {
         struct Background::Impl {
             std::vector<opt::Option::SPtr> opts_ ;
+            bool screen_is_locked_ ;
 
             template <typename T>
             Impl(T&& opts)
-            : opts_(std::forward<T>(opts))
+            : opts_(std::forward<T>(opts)),
+              screen_is_locked_(false)
             {}
+
+            bool is_screen_locked() {
+                // GetCursorPos fails when the screen is locked.
+                POINT pos ;
+                return GetCursorPos(&pos) == 0 ;
+            }
         } ;
 
         Background::Background()
@@ -35,22 +43,37 @@ namespace vind
 
         Background::~Background() noexcept = default ;
 
-        void Background::update() {
-            util::get_win_message() ;
-
+        bool Background::update() {
+            auto& igate = InputGate::get_instance() ;
             Sleep(5) ;
 
+            if(pimpl->is_screen_locked()) {
+                if(!pimpl->screen_is_locked_) {
+                    // Release all keys when the screen is locked.
+                    for(auto& key : igate.pressed_list()) {
+                        igate.release_virtually(key) ;
+                    }
+                    pimpl->screen_is_locked_ = true ;
+                }
+                return false ;
+            }
+            else if(pimpl->screen_is_locked_) {
+                pimpl->screen_is_locked_ = false ;
+            }
+
+            util::get_win_message() ;
+
             for(const auto& op : pimpl->opts_) {
                 op->process() ;
             }
 
-            auto& igate = InputGate::get_instance() ;
             igate.refresh_toggle_state() ;
 
             if(igate.is_really_pressed(KEYCODE_F8) && \
                igate.is_really_pressed(KEYCODE_F9)) {
                 throw SafeForcedTermination() ;
             }
+            return true ;
         }
     }
 }

src/core/background.hpp

@@ -28,7 +28,8 @@ namespace vind
 
             // If you make some loop functions, the function is needed to call.
             // It includes Sleep().
-            void update() ;
+            // If this function returns false, should skip an iteration.
+            bool update() ;
 
             Background(const Background&) = delete ;
             Background& operator=(const Background&) = delete ;

src/core/entry.cpp

@@ -324,6 +324,10 @@ namespace vind
             static const auto desktop_hwnd = GetDesktopWindow() ;
             static const auto taskbar_hwnd = FindWindowA("Shell_TrayWnd", NULL) ;
 
+            if(!pimpl->bg_.update()) {
+                return ;
+            }
+
             auto& ac = AutoCmd::get_instance() ;
             auto hwnd = util::get_foreground_window() ;
             auto procid = static_cast<DWORD>(0) ;
@@ -343,8 +347,6 @@ namespace vind
                 }
             }
 
-            pimpl->bg_.update() ;
-
             // TODO: It is necessary to add exclusive handling when
             // write and read operations are performed at the same
             // time by multiple processes. However, these are extremely

src/core/version.hpp

@@ -1,6 +1,6 @@
 #ifndef _VERSION_HPP
 #define _VERSION_HPP
 
-#define WIN_VIND_VERSION "5.13.0.0"
+#define WIN_VIND_VERSION "5.13.1.0"
 
 #endif