flutter_desktop: get double click time, win

Signed-off-by: fufesou <shuanglongchen@yeah.net>

flutter/lib/consts.dart

@@ -33,8 +33,6 @@ const int kMobileMaxDisplayHeight = 1280;
 const int kDesktopMaxDisplayWidth = 1920;
 const int kDesktopMaxDisplayHeight = 1080;
 
-const int kDesktopDoubleClickTimeMilli = 200;
-
 const Size kConnectionManagerWindowSize = Size(300, 400);
 // Tabbar transition duration, now we remove the duration
 const Duration kTabTransitionDuration = Duration.zero;

flutter/lib/desktop/pages/file_manager_page.dart

@@ -57,7 +57,8 @@ class _FileManagerPageState extends State<FileManagerPage>
   final _breadCrumbScrollerRemote = ScrollController();
 
   /// [_lastClickTime], [_lastClickEntry] help to handle double click
-  int _lastClickTime = DateTime.now().millisecondsSinceEpoch;
+  int _lastClickTime =
+      DateTime.now().millisecondsSinceEpoch - bind.getDoubleClickTime() - 1000;
   Entry? _lastClickEntry;
 
   final _dropMaskVisible = false.obs; // TODO impl drop mask
@@ -404,7 +405,7 @@ class _FileManagerPageState extends State<FileManagerPage>
     final elapsed = current - _lastClickTime;
     _lastClickTime = current;
     if (_lastClickEntry == entry) {
-      if (elapsed < kDesktopDoubleClickTimeMilli) {
+      if (elapsed < bind.getDoubleClickTime()) {
         return true;
       }
     } else {

flutter/lib/desktop/widgets/tabbar_widget.dart

@@ -178,7 +178,7 @@ typedef LabelGetter = Rx<String> Function(String key);
 
 /// [_lastClickTime], help to handle double click
 int _lastClickTime =
-    DateTime.now().millisecondsSinceEpoch - kDesktopDoubleClickTimeMilli - 1000;
+    DateTime.now().millisecondsSinceEpoch - bind.getDoubleClickTime() - 1000;
 
 class DesktopTab extends StatelessWidget {
   final bool showLogo;
@@ -311,7 +311,7 @@ class DesktopTab extends StatelessWidget {
                         final current = DateTime.now().millisecondsSinceEpoch;
                         final elapsed = current - _lastClickTime;
                         _lastClickTime = current;
-                        if (elapsed < kDesktopDoubleClickTimeMilli) {
+                        if (elapsed < bind.getDoubleClickTime()) {
                           // onDoubleTap
                           toggleMaximize(isMainWindow)
                               .then((value) => isMaximized.value = value);

src/flutter_ffi.rs

@@ -804,8 +804,8 @@ pub fn main_is_root() -> bool {
     is_root()
 }
 
-pub fn main_is_release() -> bool {
-    is_release()
+pub fn get_double_click_time() -> SyncReturn<i32> {
+    SyncReturn(crate::platform::get_double_click_time() as _)
 }
 
 pub fn main_start_dbus_server() {

src/platform/linux.rs

@@ -684,3 +684,10 @@ pub fn check_super_user_permission() -> ResultType<bool> {
     let status = std::process::Command::new("pkexec").arg(arg).status()?;
     Ok(status.success() && status.code() == Some(0))
 }
+
+pub fn get_double_click_time() -> u32 {
+    // to-do
+    // GtkSettings *settings = gtk_settings_get_default ();
+    // g_object_get (settings, "gtk-double-click-time", &double_click_time, NULL);
+    500 as _
+}

src/platform/macos.rs

@@ -537,3 +537,9 @@ pub fn quit_gui() {
         let () = msg_send!(NSApp(), terminate: nil);
     };
 }
+
+
+pub fn get_double_click_time() -> u32 {
+    // to-do: https://github.com/servo/core-foundation-rs/blob/786895643140fa0ee4f913d7b4aeb0c4626b2085/cocoa/src/appkit.rs#L2823
+    500 as _
+}

src/platform/windows.rs

@@ -1632,3 +1632,7 @@ pub fn is_foreground_window_elevated() -> ResultType<bool> {
 fn get_current_pid() -> u32 {
     unsafe { GetCurrentProcessId() }
 }
+
+pub fn get_double_click_time() -> u32 {
+    unsafe { GetDoubleClickTime() }
+}