added onEnterFullscreen and onExitFullscreen events, added android Log.d for debug

CHANGELOG.md

@@ -3,6 +3,7 @@
 - Updated Android context menu workaround
 - Calling `onCreateContextMenu` event on iOS also when the context menu is disabled in order to have the same effect as Android
 - Added Android keyboard workaround to hide the keyboard when clicking other HTML elements, losing the focus on the previous input
+- Added `onEnterFullscreen`, `onExitFullscreen` webview events
 - Fixed `Print preview is not working? java.lang.IllegalStateException: Can print only from an activity` [#128](https://github.com/pichillilorenzo/flutter_inappwebview/issues/128)
 
 ## 3.2.0

android/src/main/java/com/pichillilorenzo/flutter_inappwebview/InAppWebView/FlutterWebView.java

@@ -54,6 +54,8 @@ public class FlutterWebView implements PlatformView, MethodCallHandler  {
     InAppWebViewOptions options = new InAppWebViewOptions();
     options.parse(initialOptions);
 
+    Log.d(LOG_TAG, "\n\n\n Shared.activity " + ((Shared.activity == null) ? "is null" : "is NOT null!") + "\n\n\n");
+
     webView = new InAppWebView(Shared.activity, this, id, options, contextMenu, containerView);
     displayListenerProxy.onPostWebViewInitialization(displayManager);
 

android/src/main/java/com/pichillilorenzo/flutter_inappwebview/InAppWebView/InAppWebViewChromeClient.java

@@ -88,6 +88,11 @@ public class InAppWebViewChromeClient extends WebChromeClient implements PluginR
     Shared.activity.setRequestedOrientation(this.mOriginalOrientation);
     this.mCustomViewCallback.onCustomViewHidden();
     this.mCustomViewCallback = null;
+
+    Map<String, Object> obj = new HashMap<>();
+    if (inAppBrowserActivity != null)
+      obj.put("uuid", inAppBrowserActivity.uuid);
+    channel.invokeMethod("onExitFullscreen", obj);
   }
 
   @Override
@@ -125,6 +130,11 @@ public class InAppWebViewChromeClient extends WebChromeClient implements PluginR
               | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
               | View.SYSTEM_UI_FLAG_FULLSCREEN);
     }
+
+    Map<String, Object> obj = new HashMap<>();
+    if (inAppBrowserActivity != null)
+      obj.put("uuid", inAppBrowserActivity.uuid);
+    channel.invokeMethod("onEnterFullscreen", obj);
   }
 
   @Override
@@ -549,8 +559,6 @@ public class InAppWebViewChromeClient extends WebChromeClient implements PluginR
     super.onReceivedIcon(view, icon);
   }
 
-  //The undocumented magic method override
-  //Eclipse will swear at you if you try to put @Override here
   // For Android 3.0+
   public void openFileChooser(ValueCallback<Uri> uploadMsg) {
 
@@ -573,7 +581,7 @@ public class InAppWebViewChromeClient extends WebChromeClient implements PluginR
             FILECHOOSER_RESULTCODE);
   }
 
-  //For Android 4.1
+  // For Android 4.1
   public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType, String capture) {
     mUploadMessage = uploadMsg;
     Intent i = new Intent(Intent.ACTION_GET_CONTENT);
@@ -583,7 +591,7 @@ public class InAppWebViewChromeClient extends WebChromeClient implements PluginR
 
   }
 
-  //For Android 5.0+
+  // For Android 5.0+
   public boolean onShowFileChooser(WebView webView, ValueCallback<Uri[]> filePathCallback, FileChooserParams fileChooserParams) {
     InAppWebViewFlutterPlugin.uploadMessageArray = filePathCallback;
     try {

android/src/main/java/com/pichillilorenzo/flutter_inappwebview/InAppWebViewFlutterPlugin.java

@@ -4,6 +4,7 @@ import android.app.Activity;
 import android.content.Context;
 import android.net.Uri;
 import android.os.Build;
+import android.util.Log;
 import android.webkit.ValueCallback;
 
 import com.pichillilorenzo.flutter_inappwebview.InAppWebView.FlutterWebViewFactory;
@@ -47,6 +48,9 @@ public class InAppWebViewFlutterPlugin implements FlutterPlugin, ActivityAware {
 
 
   private void onAttachedToEngine(Context applicationContext, BinaryMessenger messenger, Activity activity, PlatformViewRegistry platformViewRegistry, FlutterView flutterView) {
+
+    Log.d(LOG_TAG, "\n\n\n onAttachedToEngine CALLED! \n\n\n");
+
     Shared.applicationContext = applicationContext;
     Shared.activity = activity;
     Shared.messenger = messenger;
@@ -67,6 +71,9 @@ public class InAppWebViewFlutterPlugin implements FlutterPlugin, ActivityAware {
 
   @Override
   public void onDetachedFromEngine(FlutterPluginBinding binding) {
+
+    Log.d(LOG_TAG, "\n\n\n onDetachedFromEngine CALLED! \n\n\n");
+
     if (inAppBrowserManager != null) {
       inAppBrowserManager.dispose();
       inAppBrowserManager = null;
@@ -100,24 +107,36 @@ public class InAppWebViewFlutterPlugin implements FlutterPlugin, ActivityAware {
 
   @Override
   public void onAttachedToActivity(ActivityPluginBinding activityPluginBinding) {
+
+    Log.d(LOG_TAG, "\n\n\n onAttachedToActivity CALLED! \n\n\n");
+
     Shared.activityPluginBinding = activityPluginBinding;
     Shared.activity = activityPluginBinding.getActivity();
   }
 
   @Override
   public void onDetachedFromActivityForConfigChanges() {
+
+    Log.d(LOG_TAG, "\n\n\n onDetachedFromActivityForConfigChanges CALLED! \n\n\n");
+
     Shared.activityPluginBinding = null;
     Shared.activity = null;
   }
 
   @Override
   public void onReattachedToActivityForConfigChanges(ActivityPluginBinding activityPluginBinding) {
+
+    Log.d(LOG_TAG, "\n\n\n onReattachedToActivityForConfigChanges CALLED! \n\n\n");
+
     Shared.activityPluginBinding = activityPluginBinding;
     Shared.activity = activityPluginBinding.getActivity();
   }
 
   @Override
   public void onDetachedFromActivity() {
+
+    Log.d(LOG_TAG, "\n\n\n onDetachedFromActivity CALLED! \n\n\n");
+
     Shared.activityPluginBinding = null;
     Shared.activity = null;
   }

example/.flutter-plugins-dependencies

-{"info":"This is a generated file; do not edit or check into version control.","plugins":{"ios":[{"name":"connectivity","path":"/Users/lorenzopichilli/flutter/.pub-cache/hosted/pub.dartlang.org/connectivity-0.4.8+5/","dependencies":[]},{"name":"flutter_downloader","path":"/Users/lorenzopichilli/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_downloader-1.4.4/","dependencies":[]},{"name":"flutter_inappwebview","path":"/Users/lorenzopichilli/Desktop/flutter_inappwebview/","dependencies":[]},{"name":"path_provider","path":"/Users/lorenzopichilli/flutter/.pub-cache/hosted/pub.dartlang.org/path_provider-1.6.7/","dependencies":[]},{"name":"permission_handler","path":"/Users/lorenzopichilli/flutter/.pub-cache/hosted/pub.dartlang.org/permission_handler-3.3.0/","dependencies":[]}],"android":[{"name":"connectivity","path":"/Users/lorenzopichilli/flutter/.pub-cache/hosted/pub.dartlang.org/connectivity-0.4.8+5/","dependencies":[]},{"name":"flutter_downloader","path":"/Users/lorenzopichilli/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_downloader-1.4.4/","dependencies":[]},{"name":"flutter_inappwebview","path":"/Users/lorenzopichilli/Desktop/flutter_inappwebview/","dependencies":[]},{"name":"path_provider","path":"/Users/lorenzopichilli/flutter/.pub-cache/hosted/pub.dartlang.org/path_provider-1.6.7/","dependencies":[]},{"name":"permission_handler","path":"/Users/lorenzopichilli/flutter/.pub-cache/hosted/pub.dartlang.org/permission_handler-3.3.0/","dependencies":[]}],"macos":[{"name":"connectivity_macos","path":"/Users/lorenzopichilli/flutter/.pub-cache/hosted/pub.dartlang.org/connectivity_macos-0.1.0+3/","dependencies":[]},{"name":"path_provider_macos","path":"/Users/lorenzopichilli/flutter/.pub-cache/hosted/pub.dartlang.org/path_provider_macos-0.0.4+2/","dependencies":[]}],"linux":[],"windows":[],"web":[]},"dependencyGraph":[{"name":"connectivity","dependencies":["connectivity_macos"]},{"name":"connectivity_macos","dependencies":[]},{"name":"flutter_downloader","dependencies":[]},{"name":"flutter_inappwebview","dependencies":[]},{"name":"path_provider","dependencies":["path_provider_macos"]},{"name":"path_provider_macos","dependencies":[]},{"name":"permission_handler","dependencies":[]}],"date_created":"2020-05-22 12:58:00.364435","version":"1.17.1"}
+{"info":"This is a generated file; do not edit or check into version control.","plugins":{"ios":[{"name":"connectivity","path":"/Users/lorenzopichilli/flutter/.pub-cache/hosted/pub.dartlang.org/connectivity-0.4.8+5/","dependencies":[]},{"name":"flutter_downloader","path":"/Users/lorenzopichilli/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_downloader-1.4.4/","dependencies":[]},{"name":"flutter_inappwebview","path":"/Users/lorenzopichilli/Desktop/flutter_inappwebview/","dependencies":[]},{"name":"path_provider","path":"/Users/lorenzopichilli/flutter/.pub-cache/hosted/pub.dartlang.org/path_provider-1.6.7/","dependencies":[]},{"name":"permission_handler","path":"/Users/lorenzopichilli/flutter/.pub-cache/hosted/pub.dartlang.org/permission_handler-3.3.0/","dependencies":[]}],"android":[{"name":"connectivity","path":"/Users/lorenzopichilli/flutter/.pub-cache/hosted/pub.dartlang.org/connectivity-0.4.8+5/","dependencies":[]},{"name":"flutter_downloader","path":"/Users/lorenzopichilli/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_downloader-1.4.4/","dependencies":[]},{"name":"flutter_inappwebview","path":"/Users/lorenzopichilli/Desktop/flutter_inappwebview/","dependencies":[]},{"name":"path_provider","path":"/Users/lorenzopichilli/flutter/.pub-cache/hosted/pub.dartlang.org/path_provider-1.6.7/","dependencies":[]},{"name":"permission_handler","path":"/Users/lorenzopichilli/flutter/.pub-cache/hosted/pub.dartlang.org/permission_handler-3.3.0/","dependencies":[]}],"macos":[{"name":"connectivity_macos","path":"/Users/lorenzopichilli/flutter/.pub-cache/hosted/pub.dartlang.org/connectivity_macos-0.1.0+3/","dependencies":[]},{"name":"path_provider_macos","path":"/Users/lorenzopichilli/flutter/.pub-cache/hosted/pub.dartlang.org/path_provider_macos-0.0.4+2/","dependencies":[]}],"linux":[],"windows":[],"web":[]},"dependencyGraph":[{"name":"connectivity","dependencies":["connectivity_macos"]},{"name":"connectivity_macos","dependencies":[]},{"name":"flutter_downloader","dependencies":[]},{"name":"flutter_inappwebview","dependencies":[]},{"name":"path_provider","dependencies":["path_provider_macos"]},{"name":"path_provider_macos","dependencies":[]},{"name":"permission_handler","dependencies":[]}],"date_created":"2020-05-22 16:46:33.343831","version":"1.17.1"}
\ No newline at end of file

example/ios/Flutter/flutter_export_environment.sh

@@ -2,10 +2,11 @@
 # This is a generated file; do not edit or check into version control.
 export "FLUTTER_ROOT=/Users/lorenzopichilli/flutter"
 export "FLUTTER_APPLICATION_PATH=/Users/lorenzopichilli/Desktop/flutter_inappwebview/example"
-export "FLUTTER_TARGET=lib/main.dart"
+export "FLUTTER_TARGET=/Users/lorenzopichilli/Desktop/flutter_inappwebview/example/lib/main.dart"
 export "FLUTTER_BUILD_DIR=build"
 export "SYMROOT=${SOURCE_ROOT}/../build/ios"
 export "OTHER_LDFLAGS=$(inherited) -framework Flutter"
 export "FLUTTER_FRAMEWORK_DIR=/Users/lorenzopichilli/flutter/bin/cache/artifacts/engine/ios"
 export "FLUTTER_BUILD_NAME=1.0.0"
 export "FLUTTER_BUILD_NUMBER=1"
+export "TRACK_WIDGET_CREATION=true"

example/ios/Runner.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings

-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>BuildSystemType</key>
-	<string>Original</string>
-	<key>PreviewsEnabled</key>
-	<false/>
-</dict>
-</plist>

example/lib/in_app_webiew_example.screen.dart

@@ -76,7 +76,7 @@ class _InAppWebViewExampleScreenState extends State<InAppWebViewExampleScreen> {
                   BoxDecoration(border: Border.all(color: Colors.blueAccent)),
                   child: InAppWebView(
                     contextMenu: contextMenu,
-                    initialUrl: "https://github.com/flutter",
+                    initialUrl: "https://www.youtube.com/watch?v=oD5RtLhhubg",
                     // initialFile: "assets/index.html",
                     initialHeaders: {},
                     initialOptions: InAppWebViewGroupOptions(

ios/Classes/InAppWebView.swift

@@ -860,6 +860,7 @@ public class InAppWebView: WKWebView, UIScrollViewDelegate, WKUIDelegate, WKNavi
         lastTouchPointTimestamp = Int64(Date().timeIntervalSince1970 * 1000)
         SharedLastTouchPointTimestamp[self] = lastTouchPointTimestamp
         
+        // re-build context menu items for the current webview
         UIMenuController.shared.menuItems = []
         if let menu = self.contextMenu {
             if let menuItems = menu["menuItems"] as? [[String : Any]] {
@@ -903,6 +904,7 @@ public class InAppWebView: WKWebView, UIScrollViewDelegate, WKUIDelegate, WKNavi
                 }
                 return false
             }
+            
             if contextMenuIsShowing, !action.description.starts(with: "onContextMenuActionItemClicked-") {
                 let id = action.description.compactMap({ $0.asciiValue?.description }).joined()
                 let arguments: [String: Any?] = [
@@ -944,6 +946,18 @@ public class InAppWebView: WKWebView, UIScrollViewDelegate, WKUIDelegate, WKNavi
                         name: UIMenuController.didHideMenuNotification,
                         object: nil)
         
+        // listen for videos playing in fullscreen
+        NotificationCenter.default.addObserver(self,
+                                               selector: #selector(onEnterFullscreen(_:)),
+                                               name: UIWindow.didBecomeVisibleNotification,
+                                               object: window)
+
+        // listen for videos stopping to play in fullscreen
+        NotificationCenter.default.addObserver(self,
+                                               selector: #selector(onExitFullscreen(_:)),
+                                               name: UIWindow.didBecomeHiddenNotification,
+                                               object: window)
+        
         configuration.userContentController = WKUserContentController()
         configuration.preferences = WKPreferences()
         
@@ -2480,6 +2494,34 @@ public class InAppWebView: WKWebView, UIScrollViewDelegate, WKUIDelegate, WKNavi
         channel?.invokeMethod("onDidReceiveServerRedirectForProvisionalNavigation", arguments: [])
     }
     
+    // https://stackoverflow.com/a/42840541/4637638
+    public func isVideoPlayerWindow(_ notificationObject: AnyObject?) -> Bool {
+        let nonVideoClasses = ["_UIAlertControllerShimPresenterWindow",
+                               "UITextEffectsWindow",
+                               "UIRemoteKeyboardWindow"]
+        var isVideo = true
+        if let obj = notificationObject {
+            for nonVideoClass in nonVideoClasses {
+                if let clazz = NSClassFromString(nonVideoClass) {
+                    isVideo = isVideo && !(obj.isKind(of: clazz))
+                }
+            }
+        }
+        return isVideo
+    }
+    
+    @objc func onEnterFullscreen(_ notification: Notification) {
+        if (isVideoPlayerWindow(notification.object as AnyObject?)) {
+            channel?.invokeMethod("onEnterFullscreen", arguments: [])
+        }
+    }
+    
+    @objc func onExitFullscreen(_ notification: Notification) {
+        if (isVideoPlayerWindow(notification.object as AnyObject?)) {
+            channel?.invokeMethod("onExitFullscreen", arguments: [])
+        }
+    }
+    
 //    public func onContextMenuConfigurationForElement(linkURL: String?, result: FlutterResult?) {
 //        let arguments: [String: Any?] = ["linkURL": linkURL]
 //        channel?.invokeMethod("onContextMenuConfigurationForElement", arguments: arguments, result: result)