Migrated ui and theme modules from Java to Kotlin

app/src/main/java/fr/free/nrw/commons/LocationPicker/LocationPickerActivity.java

@@ -367,7 +367,7 @@ private void onClickRemoveLocation() {
      */
     private void removeLocationFromImage() {
         if (media != null) {
-            compositeDisposable.add(coordinateEditHelper.makeCoordinatesEdit(getApplicationContext()
+            getCompositeDisposable().add(coordinateEditHelper.makeCoordinatesEdit(getApplicationContext()
                     , media, "0.0", "0.0", "0.0f")
                 .subscribeOn(Schedulers.io())
                 .observeOn(AndroidSchedulers.mainThread())
@@ -479,7 +479,7 @@ public void updateCoordinates(final String Latitude, final String Longitude,
         }
 
         try {
-            compositeDisposable.add(
+            getCompositeDisposable().add(
                 coordinateEditHelper.makeCoordinatesEdit(getApplicationContext(), media,
                         Latitude, Longitude, Accuracy)
                     .subscribeOn(Schedulers.io())

app/src/main/java/fr/free/nrw/commons/customselector/ui/selector/ImageFragment.kt

@@ -1,6 +1,7 @@
 package fr.free.nrw.commons.customselector.ui.selector
 
 import android.app.Activity
+import android.content.Context
 import android.content.Context.MODE_PRIVATE
 import android.content.SharedPreferences
 import android.os.Bundle
@@ -346,7 +347,7 @@ class ImageFragment :
                 context
                     .getSharedPreferences(
                         "CustomSelector",
-                        BaseActivity.MODE_PRIVATE,
+                        MODE_PRIVATE,
                     )?.let { prefs ->
                         prefs.edit()?.let { editor ->
                             editor.putLong("ItemId", imageAdapter.getImageIdAt(position))?.apply()

app/src/main/java/fr/free/nrw/commons/explore/SearchActivity.java

@@ -104,7 +104,7 @@ public void setTabs() {
 
         viewPagerAdapter.setTabData(fragmentList, titleList);
         viewPagerAdapter.notifyDataSetChanged();
-        compositeDisposable.add(RxSearchView.queryTextChanges(binding.searchBox)
+        getCompositeDisposable().add(RxSearchView.queryTextChanges(binding.searchBox)
                 .takeUntil(RxView.detaches(binding.searchBox))
                 .debounce(500, TimeUnit.MILLISECONDS)
                 .observeOn(AndroidSchedulers.mainThread())
@@ -284,7 +284,7 @@ public void updateText(String query) {
     @Override protected void onDestroy() {
         super.onDestroy();
         //Dispose the disposables when the activity is destroyed
-        compositeDisposable.dispose();
+        getCompositeDisposable().dispose();
         binding = null;
     }
 }

app/src/main/java/fr/free/nrw/commons/notification/NotificationActivity.java

@@ -133,7 +133,7 @@ public void removeNotification(Notification notification) {
                     }
                     binding.progressBar.setVisibility(View.GONE);
                 });
-        compositeDisposable.add(disposable);
+        getCompositeDisposable().add(disposable);
     }
 
 
@@ -178,7 +178,7 @@ private void addNotifications(boolean archived) {
         Timber.d("Add notifications");
         if (mNotificationWorkerFragment == null) {
             binding.progressBar.setVisibility(View.VISIBLE);
-            compositeDisposable.add(controller.getNotifications(archived)
+            getCompositeDisposable().add(controller.getNotifications(archived)
                     .subscribeOn(Schedulers.io())
                     .observeOn(AndroidSchedulers.mainThread())
                     .subscribe(notificationList -> {

app/src/main/java/fr/free/nrw/commons/profile/ProfileActivity.java

@@ -157,7 +157,7 @@ private void setTabs() {
     @Override
     public void onDestroy() {
         super.onDestroy();
-        compositeDisposable.clear();
+        getCompositeDisposable().clear();
     }
 
     /**

app/src/main/java/fr/free/nrw/commons/theme/BaseActivity.kt

@@ -0,0 +1,65 @@
+package fr.free.nrw.commons.theme
+
+import android.content.res.Configuration
+import android.os.Bundle
+import android.util.DisplayMetrics
+import android.view.WindowManager
+import javax.inject.Inject
+import javax.inject.Named
+import fr.free.nrw.commons.R
+import fr.free.nrw.commons.di.CommonsDaggerAppCompatActivity
+import fr.free.nrw.commons.kvstore.JsonKvStore
+import fr.free.nrw.commons.utils.SystemThemeUtils
+import io.reactivex.disposables.CompositeDisposable
+
+
+abstract class BaseActivity : CommonsDaggerAppCompatActivity() {
+
+    @Inject
+    @field:Named("default_preferences")
+    lateinit var defaultKvStore: JsonKvStore
+
+    @Inject
+    lateinit var systemThemeUtils: SystemThemeUtils
+
+    protected val compositeDisposable = CompositeDisposable()
+    protected var wasPreviouslyDarkTheme: Boolean = false
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        wasPreviouslyDarkTheme = systemThemeUtils.isDeviceInNightMode()
+        setTheme(if (wasPreviouslyDarkTheme) R.style.DarkAppTheme else R.style.LightAppTheme)
+
+        val fontScale = android.provider.Settings.System.getFloat(
+            baseContext.contentResolver,
+            android.provider.Settings.System.FONT_SCALE,
+            1f
+        )
+        adjustFontScale(resources.configuration, fontScale)
+    }
+
+    override fun onResume() {
+        // Restart activity if theme is changed
+        if (wasPreviouslyDarkTheme != systemThemeUtils.isDeviceInNightMode()) {
+            recreate()
+        }
+        super.onResume()
+    }
+
+    override fun onDestroy() {
+        super.onDestroy()
+        compositeDisposable.clear()
+    }
+
+    /**
+     * Apply fontScale on device
+     */
+    fun adjustFontScale(configuration: Configuration, scale: Float) {
+        configuration.fontScale = scale
+        val metrics = resources.displayMetrics
+        val wm = getSystemService(WINDOW_SERVICE) as WindowManager
+        wm.defaultDisplay.getMetrics(metrics)
+        metrics.scaledDensity = configuration.fontScale * metrics.density
+        baseContext.resources.updateConfiguration(configuration, metrics)
+    }
+}

app/src/main/java/fr/free/nrw/commons/ui/PasteSensitiveTextInputEditText.kt

@@ -0,0 +1,60 @@
+package fr.free.nrw.commons.ui
+
+import android.content.Context
+import android.content.res.TypedArray
+import android.os.Build
+import android.os.Build.VERSION
+import android.util.AttributeSet
+import com.google.android.material.textfield.TextInputEditText
+import fr.free.nrw.commons.R
+
+
+class PasteSensitiveTextInputEditText @JvmOverloads constructor(
+    context: Context,
+    attrs: AttributeSet? = null
+) : TextInputEditText(context, attrs) {
+
+    private var formattingAllowed: Boolean = true
+
+    init {
+        if (attrs != null) {
+            formattingAllowed = extractFormattingAttribute(context, attrs)
+        }
+    }
+
+    override fun onTextContextMenuItem(id: Int): Boolean {
+        // if not paste command, or formatting is allowed, return default
+        if (id != android.R.id.paste || formattingAllowed) {
+            return super.onTextContextMenuItem(id)
+        }
+
+        // if it's paste and formatting not allowed
+        val proceeded: Boolean = if (VERSION.SDK_INT >= 23) {
+            super.onTextContextMenuItem(android.R.id.pasteAsPlainText)
+        } else {
+            val success = super.onTextContextMenuItem(id)
+            if (success && text != null) {
+                // rewrite with plain text so formatting is lost
+                setText(text.toString())
+                setSelection(text?.length ?: 0)
+            }
+            success
+        }
+        return proceeded
+    }
+
+    private fun extractFormattingAttribute(context: Context, attrs: AttributeSet): Boolean {
+        val a = context.theme.obtainStyledAttributes(
+            attrs, R.styleable.PasteSensitiveTextInputEditText, 0, 0
+        )
+        return try {
+            a.getBoolean(R.styleable.PasteSensitiveTextInputEditText_allowFormatting, true)
+        } finally {
+            a.recycle()
+        }
+    }
+
+    fun setFormattingAllowed(formattingAllowed: Boolean) {
+        this.formattingAllowed = formattingAllowed
+    }
+}