From 9726d55ec4502eb462f9fe7d62763731e3a580cd Mon Sep 17 00:00:00 2001
From: rimthekid <farbod@nigge.rs>
Date: Fri, 18 Mar 2022 06:03:54 -0700
Subject: [PATCH] CustomSwipeToRefresh

---
 .../github/libretube/CustomSwipeToRefresh.kt  | 58 +++++++++++++++++++
 .../res/layout/fragment_subscriptions.xml     |  4 +-
 2 files changed, 60 insertions(+), 2 deletions(-)
 create mode 100644 app/src/main/java/com/github/libretube/CustomSwipeToRefresh.kt

diff --git a/app/src/main/java/com/github/libretube/CustomSwipeToRefresh.kt b/app/src/main/java/com/github/libretube/CustomSwipeToRefresh.kt
new file mode 100644
index 000000000..ade59a814
--- /dev/null
+++ b/app/src/main/java/com/github/libretube/CustomSwipeToRefresh.kt
@@ -0,0 +1,58 @@
+package com.github.libretube
+
+import android.content.Context
+import android.util.AttributeSet
+import android.view.KeyEvent.ACTION_DOWN
+import android.view.KeyEvent.ACTION_UP
+import android.view.MotionEvent
+import android.view.MotionEvent.ACTION_CANCEL
+import android.view.MotionEvent.ACTION_MOVE
+import android.view.View
+import android.view.ViewConfiguration
+import androidx.swiperefreshlayout.widget.SwipeRefreshLayout
+import kotlin.math.abs
+
+class CustomSwipeToRefresh
+@JvmOverloads
+constructor(
+    context: Context,
+    attrs: AttributeSet? = null
+) : SwipeRefreshLayout(context, attrs) {
+
+    private val touchSlop: Int = ViewConfiguration.get(context).scaledTouchSlop
+    private var startX = 0f
+    private var startY = 0f
+    private var forbidSwipe = false
+    private var isStartScrolledByY = false
+
+    override fun onInterceptTouchEvent(event: MotionEvent): Boolean {
+        when (event.action) {
+            ACTION_DOWN -> {
+                startX = event.x
+                startY = event.y
+            }
+            ACTION_MOVE -> {
+                val isScrolledByX = abs(event.x - startX) > touchSlop
+                val isScrolledByY = abs(event.y - startY) > touchSlop
+                if (!forbidSwipe && isScrolledByY) {
+                    isStartScrolledByY = true
+                }
+                if ((isScrolledByX || forbidSwipe) && !isStartScrolledByY) {
+                    forbidSwipe = true
+                    return false
+                }
+            }
+            ACTION_CANCEL, ACTION_UP -> {
+                forbidSwipe = false
+                isStartScrolledByY = false
+            }
+        }
+        return super.onInterceptTouchEvent(event)
+    }
+
+    override fun onNestedScroll(target: View, dxConsumed: Int, dyConsumed: Int, dxUnconsumed: Int, dyUnconsumed: Int) {
+        if (forbidSwipe) return
+        super.onNestedScroll(target, dxConsumed, dyConsumed, dxUnconsumed, dyUnconsumed)
+    }
+
+}
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_subscriptions.xml b/app/src/main/res/layout/fragment_subscriptions.xml
index a27f4ddb0..78c7e1c20 100644
--- a/app/src/main/res/layout/fragment_subscriptions.xml
+++ b/app/src/main/res/layout/fragment_subscriptions.xml
@@ -40,7 +40,7 @@
             android:textStyle="bold" />
     </RelativeLayout>
 
-    <androidx.swiperefreshlayout.widget.SwipeRefreshLayout
+    <com.github.libretube.CustomSwipeToRefresh
         android:id="@+id/sub_refresh"
         android:layout_width="match_parent"
         android:layout_height="match_parent">
@@ -80,5 +80,5 @@
                 </RelativeLayout>
             </LinearLayout>
         </ScrollView>
-    </androidx.swiperefreshlayout.widget.SwipeRefreshLayout>
+    </com.github.libretube.CustomSwipeToRefresh>
 </RelativeLayout>