Convert the ParentViewPager to kotlin

app/src/main/java/fr/free/nrw/commons/bookmarks/BookmarkFragment.kt

@@ -33,7 +33,7 @@ class BookmarkFragment : CommonsDaggerSupportFragment() {
 
     fun setScroll(canScroll: Boolean) {
         binding?.let {
-            it.viewPagerBookmarks.isCanScroll = canScroll
+            it.viewPagerBookmarks.canScroll = canScroll
         }
     }
 

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

@@ -1,66 +0,0 @@
-package fr.free.nrw.commons.explore;
-
-import android.content.Context;
-import android.util.AttributeSet;
-import android.view.MotionEvent;
-import androidx.viewpager.widget.ViewPager;
-
-/**
- * ParentViewPager A custom viewPager whose scrolling can be enabled and disabled.
- */
-public class ParentViewPager extends ViewPager {
-
-    /**
-     * Boolean variable that stores the current state of pager scroll i.e(enabled or disabled)
-     */
-    private boolean canScroll = true;
-
-
-    /**
-     * Default constructors
-     */
-    public ParentViewPager(Context context) {
-        super(context);
-    }
-
-    public ParentViewPager(Context context, AttributeSet attrs) {
-        super(context, attrs);
-    }
-
-
-    /**
-     * Setter method for canScroll.
-     */
-    public void setCanScroll(boolean canScroll) {
-        this.canScroll = canScroll;
-    }
-
-
-    /**
-     * Getter method for canScroll.
-     */
-    public boolean isCanScroll() {
-        return canScroll;
-    }
-
-
-    /**
-     * Method that prevents scrolling if canScroll is set to false.
-     */
-    @Override
-    public boolean onTouchEvent(MotionEvent ev) {
-        return canScroll && super.onTouchEvent(ev);
-    }
-
-
-    /**
-     * A facilitator method that allows parent to intercept touch events before its children. thus
-     * making it possible to prevent swiping parent on child end.
-     */
-    @Override
-    public boolean onInterceptTouchEvent(MotionEvent ev) {
-        return canScroll && super.onInterceptTouchEvent(ev);
-    }
-
-
-}

app/src/main/java/fr/free/nrw/commons/explore/ParentViewPager.kt

@@ -0,0 +1,25 @@
+package fr.free.nrw.commons.explore
+
+import android.content.Context
+import android.util.AttributeSet
+import android.view.MotionEvent
+import androidx.viewpager.widget.ViewPager
+
+/**
+ * ParentViewPager A custom viewPager whose scrolling can be enabled and disabled.
+ */
+class ParentViewPager : ViewPager {
+    var canScroll: Boolean = true
+
+    constructor(context: Context) : super(context)
+
+    constructor(context: Context, attrs: AttributeSet?) : super(context, attrs)
+
+    override fun onTouchEvent(ev: MotionEvent): Boolean {
+        return canScroll && super.onTouchEvent(ev)
+    }
+
+    override fun onInterceptTouchEvent(ev: MotionEvent): Boolean {
+        return canScroll && super.onInterceptTouchEvent(ev)
+    }
+}

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

@@ -46,7 +46,7 @@ class ProfileActivity : BaseActivity() {
     private var contributionsFragment: ContributionsFragment? = null
 
     fun setScroll(canScroll: Boolean) {
-        binding.viewPager.setCanScroll(canScroll)
+        binding.viewPager.canScroll = canScroll
     }
 
     override fun onRestoreInstanceState(savedInstanceState: Bundle) {

app/src/main/java/fr/free/nrw/commons/upload/UploadProgressActivity.kt

@@ -56,11 +56,7 @@ class UploadProgressActivity : BaseActivity() {
 
                 override fun onPageSelected(position: Int) {
                     updateMenuItems(position)
-                    if (position == 2) {
-                        binding.uploadProgressViewPager.setCanScroll(false)
-                    } else {
-                        binding.uploadProgressViewPager.setCanScroll(true)
-                    }
+                    binding.uploadProgressViewPager.canScroll = (position != 2)
                 }
 
                 override fun onPageScrollStateChanged(state: Int) {

app/src/test/kotlin/fr/free/nrw/commons/explore/ExploreFragmentUnitTest.kt

@@ -88,14 +88,14 @@ class ExploreFragmentUnitTest {
     @Throws(Exception::class)
     fun testSetScrollCaseTrue() {
         fragment.setScroll(true)
-        Assert.assertEquals(viewPager.isCanScroll, true)
+        Assert.assertEquals(viewPager.canScroll, true)
     }
 
     @Test
     @Throws(Exception::class)
     fun testSetScrollCaseFalse() {
         fragment.setScroll(false)
-        Assert.assertEquals(viewPager.isCanScroll, false)
+        Assert.assertEquals(viewPager.canScroll, false)
     }
 
     @Test