1 files changed, 151 insertions, 0 deletions
diff --git a/src/android/jar/src/org/qtproject/qt/android/QtActivityLoader.java b/src/android/jar/src/org/qtproject/qt/android/QtActivityLoader.java
new file mode 100644
index 0000000000..1b2e8e49a0
--- /dev/null
+++ b/src/android/jar/src/org/qtproject/qt/android/QtActivityLoader.java
@@ -0,0 +1,151 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// Copyright (c) 2016, BogDan Vatra <bogdan@kde.org>
+// 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 android.annotation.SuppressLint;
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.content.ContextWrapper;
+import android.content.Intent;
+import android.content.pm.ApplicationInfo;
+import android.content.pm.PackageManager;
+import android.content.res.Resources;
+import android.os.Bundle;
+import android.system.Os;
+import android.util.Base64;
+import android.util.DisplayMetrics;
+import android.util.Log;
+
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.nio.charset.StandardCharsets;
+
+class QtActivityLoader extends QtLoader {
+    private final Activity m_activity;
+
+    public QtActivityLoader(Activity activity)
+    {
+        super(new ContextWrapper(activity));
+        m_activity = activity;
+
+        extractContextMetaData();
+    }
+
+    private void showErrorDialog() {
+        if (m_activity == null) {
+            Log.w(QtTAG, "cannot show the error dialog from a null activity object");
+            return;
+        }
+        Resources resources = m_activity.getResources();
+        String packageName = m_activity.getPackageName();
+        AlertDialog errorDialog = new AlertDialog.Builder(m_activity).create();
+        @SuppressLint("DiscouragedApi") int id = resources.getIdentifier(
+                "fatal_error_msg", "string", packageName);
+        errorDialog.setMessage(resources.getString(id));
+        errorDialog.setButton(Dialog.BUTTON_POSITIVE, resources.getString(android.R.string.ok),
+                (dialog, which) -> finish());
+        errorDialog.show();
+    }
+
+    @Override
+    protected void finish() {
+        if (m_activity == null) {
+            Log.w(QtTAG, "finish() called when activity object is null");
+            return;
+        }
+        showErrorDialog();
+        m_activity.finish();
+    }
+
+    private String getDecodedUtfString(String str)
+    {
+        byte[] decodedExtraEnvVars = Base64.decode(str, Base64.DEFAULT);
+        return new String(decodedExtraEnvVars, StandardCharsets.UTF_8);
+    }
+
+    int getAppIconSize()
+    {
+        int size = m_activity.getResources().getDimensionPixelSize(android.R.dimen.app_icon_size);
+        if (size < 36 || size > 512) { // check size sanity
+            DisplayMetrics metrics = new DisplayMetrics();
+            m_activity.getWindowManager().getDefaultDisplay().getMetrics(metrics);
+            size = metrics.densityDpi / 10 * 3;
+            if (size < 36)
+                size = 36;
+
+            if (size > 512)
+                size = 512;
+        }
+
+        return size;
+    }
+
+    private void setupStyleExtraction()
+    {
+        int displayDensity = m_activity.getResources().getDisplayMetrics().densityDpi;
+        setEnvironmentVariable("QT_ANDROID_THEME_DISPLAY_DPI", String.valueOf(displayDensity));
+
+        String extractOption = getMetaData("android.app.extract_android_style");
+        if (extractOption.equals("full"))
+            setEnvironmentVariable("QT_USE_ANDROID_NATIVE_STYLE", String.valueOf(1));
+
+        String stylePath = ExtractStyle.setup(m_activity, extractOption, displayDensity);
+        setEnvironmentVariable("ANDROID_STYLE_PATH", stylePath);
+    }
+
+    @Override
+    protected void extractContextMetaData()
+    {
+        super.extractContextMetaData();
+
+        setEnvironmentVariable("QT_USE_ANDROID_NATIVE_DIALOGS", String.valueOf(1));
+        setEnvironmentVariable("QT_ANDROID_APP_ICON_SIZE", String.valueOf(getAppIconSize()));
+
+        setupStyleExtraction();
+
+        Intent intent = m_activity.getIntent();
+        if (intent == null) {
+            Log.w(QtTAG, "Null Intent from the current Activity.");
+            return;
+        }
+
+        String intentArgs = intent.getStringExtra("applicationArguments");
+        if (intentArgs != null)
+            appendApplicationParameters(intentArgs);
+
+        Bundle extras = intent.getExtras();
+        if (extras == null) {
+            Log.w(QtTAG, "Null extras from the Activity's intent.");
+            return;
+        }
+
+        int flags = m_activity.getApplicationInfo().flags;
+        boolean isDebuggable = (flags & ApplicationInfo.FLAG_DEBUGGABLE) != 0;
+
+        if (isDebuggable) {
+            if (extras.containsKey("extraenvvars")) {
+                String extraEnvVars = extras.getString("extraenvvars");
+                setEnvironmentVariables(getDecodedUtfString(extraEnvVars));
+            }
+
+            if (extras.containsKey("extraappparams")) {
+                String extraAppParams = extras.getString("extraappparams");
+                appendApplicationParameters(getDecodedUtfString(extraAppParams));
+            }
+
+            m_debuggerSleepMs = 3000;
+            if (Os.getenv("QT_ANDROID_DEBUGGER_MAIN_THREAD_SLEEP_MS") != null) {
+                try {
+                   m_debuggerSleepMs = Integer.parseInt(Os.getenv("QT_ANDROID_DEBUGGER_MAIN_THREAD_SLEEP_MS"));
+                } catch (NumberFormatException ignored) {
+                }
+            }
+        } else {
+            Log.d(QtNative.QtTAG, "Not in debug mode! It is not allowed to use extra arguments " +
+                    "in non-debug mode.");
+        }
+    }
+}