[desktop_drop] macos compat with latest flutter master channel

Author: boyan01

packages/desktop_drop/example/macos/Podfile.lock

@@ -19,4 +19,4 @@ SPEC CHECKSUMS:
 
 PODFILE CHECKSUM: 353c8bcc5d5b0994e508d035b5431cfe18c1dea7
 
-COCOAPODS: 1.11.3
+COCOAPODS: 1.12.1

packages/desktop_drop/example/macos/Runner.xcodeproj/project.pbxproj

@@ -203,7 +203,7 @@
 			isa = PBXProject;
 			attributes = {
 				LastSwiftUpdateCheck = 0920;
-				LastUpgradeCheck = 1300;
+				LastUpgradeCheck = 1430;
 				ORGANIZATIONNAME = "";
 				TargetAttributes = {
 					33CC10EC2044A3C60003C045 = {

packages/desktop_drop/example/macos/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1300"
+   LastUpgradeVersion = "1430"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"

packages/desktop_drop/example/pubspec.lock

@@ -37,10 +37,10 @@ packages:
     dependency: transitive
     description:
       name: collection
-      sha256: "4a07be6cb69c84d677a6c3096fcf960cc3285a8330b4603e0d463d15d9bd934c"
+      sha256: ee67cb0715911d28db6bf4af1026078bd6f0128b07a5f66fb2ed94ec6783c09a
       url: "https://pub.dev"
     source: hosted
-    version: "1.17.1"
+    version: "1.18.0"
   cross_file:
     dependency: "direct main"
     description:
@@ -115,18 +115,18 @@ packages:
     dependency: transitive
     description:
       name: matcher
-      sha256: "6501fbd55da300384b768785b83e5ce66991266cec21af89ab9ae7f5ce1c4cbb"
+      sha256: "1803e76e6653768d64ed8ff2e1e67bea3ad4b923eb5c56a295c3e634bad5960e"
       url: "https://pub.dev"
     source: hosted
-    version: "0.12.15"
+    version: "0.12.16"
   material_color_utilities:
     dependency: transitive
     description:
       name: material_color_utilities
-      sha256: d92141dc6fe1dad30722f9aa826c7fbc896d021d792f80678280601aff8cf724
+      sha256: "9528f2f296073ff54cb9fee677df673ace1218163c3bc7628093e7eed5203d41"
       url: "https://pub.dev"
     source: hosted
-    version: "0.2.0"
+    version: "0.5.0"
   meta:
     dependency: transitive
     description:
@@ -152,26 +152,26 @@ packages:
     dependency: transitive
     description:
       name: source_span
-      sha256: dd904f795d4b4f3b870833847c461801f6750a9fa8e61ea5ac53f9422b31f250
+      sha256: "53e943d4206a5e30df338fd4c6e7a077e02254531b138a15aec3bd143c1a8b3c"
       url: "https://pub.dev"
     source: hosted
-    version: "1.9.1"
+    version: "1.10.0"
   stack_trace:
     dependency: transitive
     description:
       name: stack_trace
-      sha256: c3c7d8edb15bee7f0f74debd4b9c5f3c2ea86766fe4178eb2a18eb30a0bdaed5
+      sha256: "73713990125a6d93122541237550ee3352a2d84baad52d375a4cad2eb9b7ce0b"
       url: "https://pub.dev"
     source: hosted
-    version: "1.11.0"
+    version: "1.11.1"
   stream_channel:
     dependency: transitive
     description:
       name: stream_channel
-      sha256: "83615bee9045c1d322bbbd1ba209b7a749c2cbcdcb3fdd1df8eb488b3279c1c8"
+      sha256: ba2aa5d8cc609d96bbb2899c28934f9e1af5cddbd60a827822ea467161eb54e7
       url: "https://pub.dev"
     source: hosted
-    version: "2.1.1"
+    version: "2.1.2"
   string_scanner:
     dependency: transitive
     description:
@@ -192,10 +192,10 @@ packages:
     dependency: transitive
     description:
       name: test_api
-      sha256: eb6ac1540b26de412b3403a163d919ba86f6a973fe6cc50ae3541b80092fdcfb
+      sha256: "5c2f730018264d276c20e4f1503fd1308dfbbae39ec8ee63c5236311ac06954b"
       url: "https://pub.dev"
     source: hosted
-    version: "0.5.1"
+    version: "0.6.1"
   vector_math:
     dependency: transitive
     description:
@@ -204,6 +204,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.1.4"
+  web:
+    dependency: transitive
+    description:
+      name: web
+      sha256: dc8ccd225a2005c1be616fe02951e2e342092edf968cf0844220383757ef8f10
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.1.4-beta"
 sdks:
-  dart: ">=3.0.0-0 <4.0.0"
+  dart: ">=3.1.0-185.0.dev <4.0.0"
   flutter: ">=1.20.0"

packages/desktop_drop/macos/Classes/DesktopDropPlugin.swift

@@ -20,7 +20,8 @@ private func findFlutterViewController(_ viewController: NSViewController?) -> F
 public class DesktopDropPlugin: NSObject, FlutterPlugin {
   public static func register(with registrar: FlutterPluginRegistrar) {
     guard let app = NSApplication.shared.delegate as? FlutterAppDelegate else { return }
-    guard let vc = findFlutterViewController(app.mainFlutterWindow.contentViewController) else { return }
+    guard let flutterWindow = app.mainFlutterWindow else { return }
+    guard let vc = findFlutterViewController(flutterWindow.contentViewController) else { return }
 
     let channel = FlutterMethodChannel(name: "desktop_drop", binaryMessenger: registrar.messenger)
     let instance = DesktopDropPlugin()