Make DialogThemedActivity main window is not focusable

In case the window may become to IME input target when dismissing the
dialog window to mistakly hide the IME when getting the IME insets
control.

Also, add the SystemBars' insets visibility string on the dialog for the
test to easier track and verify the insets visiblity before thetest.

Bug: 227142436
Test: atest LaunchAppShowImeAndDialogThemeAppTest
      --rerun-until-failure 10
Change-Id: I96b17c78d4bd211a930bc0e4a083168e83f8aae9

tests/FlickerTests/src/com/android/server/wm/flicker/helpers/ImeAppAutoFocusHelper.kt

@@ -16,6 +16,10 @@
 
 package com.android.server.wm.flicker.helpers
 
+import android.view.WindowInsets.Type.ime
+import android.view.WindowInsets.Type.navigationBars
+import android.view.WindowInsets.Type.statusBars
+
 import android.app.Instrumentation
 import androidx.test.uiautomator.By
 import androidx.test.uiautomator.UiDevice
@@ -25,6 +29,8 @@ import com.android.server.wm.traces.common.FlickerComponentName
 import com.android.server.wm.traces.parser.toFlickerComponent
 import com.android.server.wm.traces.parser.windowmanager.WindowManagerStateHelper
 
+import java.util.regex.Pattern
+
 class ImeAppAutoFocusHelper @JvmOverloads constructor(
     instr: Instrumentation,
     private val rotation: Int,
@@ -72,6 +78,7 @@ class ImeAppAutoFocusHelper @JvmOverloads constructor(
         wmHelper.waitForAppTransitionIdle()
         wmHelper.waitForFullScreenApp(
                 ActivityOptions.DIALOG_THEMED_ACTIVITY_COMPONENT_NAME.toFlickerComponent())
+        mInstrumentation.waitForIdleSync()
     }
     fun dismissDialog(wmHelper: WindowManagerStateHelper) {
         val dialog = uiDevice.wait(
@@ -83,4 +90,27 @@ class ImeAppAutoFocusHelper @JvmOverloads constructor(
             wmHelper.waitForAppTransitionIdle()
         }
     }
+    fun getInsetsVisibleFromDialog(type: Int): Boolean {
+        var insetsVisibilityTextView = uiDevice.wait(
+                Until.findObject(By.res("android:id/text1")), FIND_TIMEOUT)
+        if (insetsVisibilityTextView != null) {
+            var visibility = insetsVisibilityTextView.text.toString()
+            val matcher = when (type) {
+                ime() -> {
+                    Pattern.compile("IME\\: (VISIBLE|INVISIBLE)").matcher(visibility)
+                }
+                statusBars() -> {
+                    Pattern.compile("StatusBar\\: (VISIBLE|INVISIBLE)").matcher(visibility)
+                }
+                navigationBars() -> {
+                    Pattern.compile("NavBar\\: (VISIBLE|INVISIBLE)").matcher(visibility)
+                }
+                else -> null
+            }
+            if (matcher != null && matcher.find()) {
+                return matcher.group(1).equals("VISIBLE")
+            }
+        }
+        return false
+    }
 }

tests/FlickerTests/src/com/android/server/wm/flicker/ime/LaunchAppShowImeAndDialogThemeAppTest.kt

@@ -16,6 +16,10 @@
 
 package com.android.server.wm.flicker.ime
 
+import android.view.WindowInsets.Type.ime
+import android.view.WindowInsets.Type.navigationBars
+import android.view.WindowInsets.Type.statusBars
+
 import android.app.Instrumentation
 import android.platform.test.annotations.Presubmit
 import android.view.Surface
@@ -35,6 +39,8 @@ import org.junit.Test
 import org.junit.runner.RunWith
 import org.junit.runners.MethodSorters
 import org.junit.runners.Parameterized
+import org.junit.Assert.assertFalse
+import org.junit.Assert.assertTrue
 
 /**
  * Test IME snapshot mechanism won't apply when transitioning from non-IME focused dialog activity.
@@ -56,6 +62,10 @@ class LaunchAppShowImeAndDialogThemeAppTest(private val testSpec: FlickerTestPar
                     testApp.launchViaIntent(wmHelper)
                     wmHelper.waitImeShown()
                     testApp.startDialogThemedActivity(wmHelper)
+                    // Verify IME insets isn't visible on dialog since it's non-IME focusable window
+                    assertFalse(testApp.getInsetsVisibleFromDialog(ime()))
+                    assertTrue(testApp.getInsetsVisibleFromDialog(statusBars()))
+                    assertTrue(testApp.getInsetsVisibleFromDialog(navigationBars()))
                 }
             }
             teardown {

tests/FlickerTests/test-apps/flickerapp/src/com/android/server/wm/flicker/testapp/DialogThemedActivity.java

@@ -17,11 +17,16 @@
 package com.android.server.wm.flicker.testapp;
 
 import static android.view.ViewGroup.LayoutParams.MATCH_PARENT;
+import static android.view.WindowInsets.Type.ime;
+import static android.view.WindowInsets.Type.navigationBars;
+import static android.view.WindowInsets.Type.statusBars;
 import static android.view.WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM;
 import static android.view.WindowManager.LayoutParams.FLAG_DIM_BEHIND;
+import static android.view.WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE;
 
 import android.app.Activity;
 import android.app.AlertDialog;
+import android.app.Dialog;
 import android.graphics.Color;
 import android.os.Bundle;
 import android.view.WindowManager;
@@ -33,9 +38,12 @@ public class DialogThemedActivity extends Activity {
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_simple);
+        getWindow().addFlags(FLAG_NOT_FOCUSABLE);
         getWindow().getDecorView().setBackgroundColor(Color.TRANSPARENT);
         TextView textView = new TextView(this);
-        textView.setText("This is a test dialog");
+        // Print SystemBars' insets visibility on this window for demonstrating during the test.
+        textView.setId(android.R.id.text1);
+        textView.setText("Insets visibility\n\n");
         textView.setTextColor(Color.BLACK);
         LinearLayout layout = new LinearLayout(this);
         layout.setBackgroundColor(Color.GREEN);
@@ -51,7 +59,17 @@ public class DialogThemedActivity extends Activity {
         attrs.flags = FLAG_DIM_BEHIND | FLAG_ALT_FOCUSABLE_IM;
         dialog.getWindow().getDecorView().setLayoutParams(attrs);
         dialog.setCanceledOnTouchOutside(true);
+        dialog.setOnShowListener(d -> textView.setText(textView.getText()
+                + "IME: " + isInsetsVisible(dialog, ime()) + "\n"
+                + "StatusBar: " + isInsetsVisible(dialog, statusBars()) + "\n"
+                + "NavBar: " + isInsetsVisible(dialog, navigationBars()) + "\n")
+        );
         dialog.show();
         dialog.setOnDismissListener((d) -> finish());
     }
+
+    private String isInsetsVisible(Dialog d, int type) {
+        return d.getWindow().getDecorView().getRootWindowInsets().isVisible(type) ? "VISIBLE"
+                : "INVISIBLE";
+    }
 }