1 files changed, 178 insertions, 0 deletions
diff --git a/src/android/jar/src/org/qtproject/qt/android/QtEmbeddedDelegate.java b/src/android/jar/src/org/qtproject/qt/android/QtEmbeddedDelegate.java
new file mode 100644
index 0000000000..ff694777d5
--- /dev/null
+++ b/src/android/jar/src/org/qtproject/qt/android/QtEmbeddedDelegate.java
@@ -0,0 +1,178 @@
+// Copyright (C) 2024 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+package org.qtproject.qt.android;
+
+import static org.qtproject.qt.android.QtNative.ApplicationState.*;
+
+import android.app.Activity;
+import android.app.Application;
+import android.content.Context;
+import android.content.res.Resources;
+import android.os.Build;
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.Looper;
+import android.util.DisplayMetrics;
+import android.util.Log;
+import android.view.View;
+import android.view.ViewGroup;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+
+class QtEmbeddedDelegate extends QtActivityDelegateBase
+        implements QtNative.AppStateDetailsListener, QtEmbeddedViewInterface
+{
+    // TODO simplistic implementation with one QtView, expand to support multiple views QTBUG-117649
+    private QtView m_view;
+    private QtNative.ApplicationStateDetails m_stateDetails;
+    private boolean m_windowLoaded = false;
+
+    public QtEmbeddedDelegate(Activity context) {
+        super(context);
+
+        m_stateDetails = QtNative.getStateDetails();
+        QtNative.registerAppStateListener(this);
+
+        m_activity.getApplication().registerActivityLifecycleCallbacks(
+        new Application.ActivityLifecycleCallbacks() {
+            @Override
+            public void onActivityCreated(Activity activity, Bundle savedInstanceState) {}
+
+            @Override
+            public void onActivityStarted(Activity activity) {}
+
+            @Override
+            public void onActivityResumed(Activity activity) {
+                if (m_activity == activity && m_stateDetails.isStarted) {
+                    QtNative.setApplicationState(ApplicationActive);
+                    QtNative.updateWindow();
+                }
+            }
+
+            @Override
+            public void onActivityPaused(Activity activity) {
+                if (m_activity == activity && m_stateDetails.isStarted) {
+                    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N ||
+                        !activity.isInMultiWindowMode()) {
+                        QtNative.setApplicationState(ApplicationInactive);
+                    }
+                }
+            }
+
+            @Override
+            public void onActivityStopped(Activity activity) {
+                if (m_activity == activity && m_stateDetails.isStarted) {
+                    QtNative.setApplicationState(ApplicationSuspended);
+                }
+            }
+
+            @Override
+            public void onActivitySaveInstanceState(Activity activity, Bundle outState) {}
+
+            @Override
+            public void onActivityDestroyed(Activity activity) {
+                if (m_activity == activity && m_stateDetails.isStarted) {
+                    m_activity.getApplication().unregisterActivityLifecycleCallbacks(this);
+                    QtNative.unregisterAppStateListener(QtEmbeddedDelegate.this);
+                    QtEmbeddedDelegateFactory.remove(m_activity);
+                    QtNative.terminateQt();
+                    QtNative.setActivity(null);
+                    QtNative.getQtThread().exit();
+                }
+            }
+        });
+    }
+
+    @Override
+    public void onAppStateDetailsChanged(QtNative.ApplicationStateDetails details) {
+        synchronized (this) {
+            m_stateDetails = details;
+        }
+    }
+
+    @Override
+    public void onNativePluginIntegrationReadyChanged(boolean ready)
+    {
+        synchronized (this) {
+            if (ready) {
+                QtNative.runAction(() -> {
+                    DisplayMetrics metrics = Resources.getSystem().getDisplayMetrics();
+                    QtDisplayManager.setApplicationDisplayMetrics(m_activity, metrics.widthPixels,
+                                                                  metrics.heightPixels);
+
+                });
+                createRootWindow();
+            }
+        }
+    }
+
+    @Override
+    void startNativeApplicationImpl(String appParams, String mainLib)
+    {
+        QtNative.startApplication(appParams, mainLib);
+    }
+
+    @Override
+    QtAccessibilityDelegate createAccessibilityDelegate()
+    {
+        // FIXME make QtAccessibilityDelegate window based or verify current way works
+        // also for child windows: QTBUG-120685
+        return null;
+    }
+
+    @UsedFromNativeCode
+    @Override
+    QtLayout getQtLayout()
+    {
+        // TODO verify if returning m_view here works, this is used by the androidjniinput
+        // when e.g. showing a keyboard, so depends on getting the keyboard focus working
+        // QTBUG-118873
+        if (m_view == null)
+            return null;
+        return m_view.getQtWindow();
+    }
+
+    // QtEmbeddedViewInterface implementation begin
+    @Override
+    public void startQtApplication(String appParams, String mainLib)
+    {
+        super.startNativeApplication(appParams, mainLib);
+    }
+
+    @Override
+    public void queueLoadWindow()
+    {
+        synchronized (this) {
+            if (m_stateDetails.nativePluginIntegrationReady)
+                createRootWindow();
+        }
+    }
+
+    @Override
+    public void setView(QtView view)
+    {
+        m_view = view;
+        updateInputDelegate();
+        if (m_view != null)
+            registerGlobalFocusChangeListener(m_view);
+    }
+    // QtEmbeddedViewInterface implementation end
+
+    private void updateInputDelegate() {
+        if (m_view == null) {
+            m_inputDelegate.setEditPopupMenu(null);
+            return;
+        }
+        m_inputDelegate.setEditPopupMenu(new EditPopupMenu(m_activity, m_view));
+    }
+
+    private void createRootWindow() {
+        if (m_view != null && !m_windowLoaded) {
+            QtView.createRootWindow(m_view, m_view.getLeft(), m_view.getTop(), m_view.getWidth(),
+                                    m_view.getHeight());
+            m_windowLoaded = true;
+        }
+    }
+}