FlutterMouse.* -> kFlutterMouse.*, so we can lint header files. (#46056)

Partial work towards flutter/flutter#134969.

---------

Co-authored-by: Chris Bracken <[email protected]>

Author: matanlurey

shell/platform/darwin/macos/framework/Headers/FlutterViewController.h

@@ -14,13 +14,26 @@
  */
 typedef NS_ENUM(NSInteger, FlutterMouseTrackingMode) {
   // Hover events will never be sent to Flutter.
-  FlutterMouseTrackingModeNone = 0,
+  kFlutterMouseTrackingModeNone = 0,
+  // NOLINTNEXTLINE(readability-identifier-naming)
+  FlutterMouseTrackingModeNone __attribute__((deprecated)) = kFlutterMouseTrackingModeNone,
+
   // Hover events will be sent to Flutter when the view is in the key window.
-  FlutterMouseTrackingModeInKeyWindow,
+  kFlutterMouseTrackingModeInKeyWindow = 1,
+  // NOLINTNEXTLINE(readability-identifier-naming)
+  FlutterMouseTrackingModeInKeyWindow
+  __attribute__((deprecated)) = kFlutterMouseTrackingModeInKeyWindow,
+
   // Hover events will be sent to Flutter when the view is in the active app.
-  FlutterMouseTrackingModeInActiveApp,
+  kFlutterMouseTrackingModeInActiveApp = 2,
+  // NOLINTNEXTLINE(readability-identifier-naming)
+  FlutterMouseTrackingModeInActiveApp
+  __attribute__((deprecated)) = kFlutterMouseTrackingModeInActiveApp,
+
   // Hover events will be sent to Flutter regardless of window and app focus.
-  FlutterMouseTrackingModeAlways,
+  kFlutterMouseTrackingModeAlways = 3,
+  // NOLINTNEXTLINE(readability-identifier-naming)
+  FlutterMouseTrackingModeAlways __attribute__((deprecated)) = kFlutterMouseTrackingModeAlways,
 };
 
 /**

shell/platform/darwin/macos/framework/Source/FlutterViewController.mm

@@ -400,7 +400,7 @@ static void CommonInit(FlutterViewController* controller, FlutterEngine* engine)
             @"In unit tests, this is likely because either the FlutterViewController or "
             @"the FlutterEngine is mocked. Please subclass these classes instead.",
             controller.engine, controller.viewId);
-  controller->_mouseTrackingMode = FlutterMouseTrackingModeInKeyWindow;
+  controller->_mouseTrackingMode = kFlutterMouseTrackingModeInKeyWindow;
   controller->_textInputPlugin = [[FlutterTextInputPlugin alloc] initWithViewController:controller];
   [controller initializeKeyboard];
   [controller notifySemanticsEnabledChanged];
@@ -642,17 +642,17 @@ - (void)configureTrackingArea {
     // the view is actually loaded.
     return;
   }
-  if (_mouseTrackingMode != FlutterMouseTrackingModeNone && self.flutterView) {
+  if (_mouseTrackingMode != kFlutterMouseTrackingModeNone && self.flutterView) {
     NSTrackingAreaOptions options = NSTrackingMouseEnteredAndExited | NSTrackingMouseMoved |
                                     NSTrackingInVisibleRect | NSTrackingEnabledDuringMouseDrag;
     switch (_mouseTrackingMode) {
-      case FlutterMouseTrackingModeInKeyWindow:
+      case kFlutterMouseTrackingModeInKeyWindow:
         options |= NSTrackingActiveInKeyWindow;
         break;
-      case FlutterMouseTrackingModeInActiveApp:
+      case kFlutterMouseTrackingModeInActiveApp:
         options |= NSTrackingActiveInActiveApp;
         break;
-      case FlutterMouseTrackingModeAlways:
+      case kFlutterMouseTrackingModeAlways:
         options |= NSTrackingActiveAlways;
         break;
       default:

shell/platform/darwin/macos/framework/Source/FlutterViewControllerTest.mm

@@ -195,8 +195,8 @@ id MockGestureEvent(NSEventType type, NSEventPhase phase, double magnification,
       initWithAssetsPath:fixtures
              ICUDataPath:[fixtures stringByAppendingString:@"/icudtl.dat"]];
   FlutterViewController* viewController = [[FlutterViewController alloc] initWithProject:project];
-  viewController.mouseTrackingMode = FlutterMouseTrackingModeInActiveApp;
-  ASSERT_EQ(viewController.mouseTrackingMode, FlutterMouseTrackingModeInActiveApp);
+  viewController.mouseTrackingMode = kFlutterMouseTrackingModeInActiveApp;
+  ASSERT_EQ(viewController.mouseTrackingMode, kFlutterMouseTrackingModeInActiveApp);
 }
 
 TEST(FlutterViewControllerTest, TestKeyEventsAreSentToFramework) {