Update the URL in the copyright header. https://redmine.stoutner.com/issues/796

[PrivacyBrowserAndroid.git] / app / src / main / java / com / stoutner / privacybrowser / views / NestedScrollWebView.kt

diff --git a/app/src/main/java/com/stoutner/privacybrowser/views/NestedScrollWebView.kt b/app/src/main/java/com/stoutner/privacybrowser/views/NestedScrollWebView.kt
index 2900e0ab8c2d63e0b7129fc9fd877bcdeedb9234..1eefe7378006ea496de2bdba521b0da9b26dc303 100644 (file)
--- a/app/src/main/java/com/stoutner/privacybrowser/views/NestedScrollWebView.kt
+++ b/app/src/main/java/com/stoutner/privacybrowser/views/NestedScrollWebView.kt
@@ -1,24 +1,25 @@
 /*
- * Copyright © 2019-2021 Soren Stoutner <soren@stoutner.com>.
+ * Copyright © 2019-2022 Soren Stoutner <soren@stoutner.com>.
  *
- * This file is part of Privacy Browser <https://www.stoutner.com/privacy-browser>.
+ * This file is part of Privacy Browser Android <https://www.stoutner.com/privacy-browser-android>.
  *
- * Privacy Browser is free software: you can redistribute it and/or modify
+ * Privacy Browser Android is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation, either version 3 of the License, or
  * (at your option) any later version.
  *
- * Privacy Browser is distributed in the hope that it will be useful,
+ * Privacy Browser Android is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with Privacy Browser.  If not, see <http://www.gnu.org/licenses/>.
+ * along with Privacy Browser Android.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 package com.stoutner.privacybrowser.views
 
+import android.animation.ObjectAnimator
 import android.annotation.SuppressLint
 import android.content.Context
 import android.graphics.Bitmap
@@ -36,6 +37,7 @@ import androidx.core.view.NestedScrollingChildHelper
 import androidx.core.view.ViewCompat
 
 import com.stoutner.privacybrowser.R
+import com.stoutner.privacybrowser.activities.MainWebViewActivity
 
 import java.util.Collections
 import java.util.Date
@@ -78,9 +80,8 @@ private const val FONT_SIZE = "font_size"
 // NestedScrollWebView extends WebView to handle nested scrolls (scrolling the app bar off the screen).  It also stores extra information about the state of the WebView used by Privacy Browser.
 class NestedScrollWebView @JvmOverloads constructor(context: Context, attributeSet: AttributeSet? = null, defaultStyle: Int = android.R.attr.webViewStyle) : WebView(context, attributeSet, defaultStyle),
     NestedScrollingChild2 {
-
     companion object {
-        // Define the companion object blocklists constants.  These can be moved to class constants once all of the code has transitioned to Kotlin.
+        // Define the public companion object constants.  These can be moved to public class constants once the entire project has migrated to Kotlin.
         const val BLOCKED_REQUESTS = 0
         const val EASYLIST = 1
         const val EASYPRIVACY = 2
@@ -312,6 +313,19 @@ class NestedScrollWebView @JvmOverloads constructor(context: Context, attributeS
         return computeVerticalScrollRange()
     }
 
+    override fun onOverScrolled(scrollX: Int, scrollY: Int, clampedX: Boolean, clampedY: Boolean) {
+        // Run the default commands.
+        super.onOverScrolled(scrollX, scrollY, clampedX, clampedY)
+
+        // Display the bottom app bar if it has been hidden and the WebView was over-scrolled at the top of the screen.
+        if ((MainWebViewActivity.appBarLayout.translationY != 0f) && (scrollY == 0) && clampedY) {
+            // Animate the bottom app bar onto the screen.
+            val objectAnimator = ObjectAnimator.ofFloat(MainWebViewActivity.appBarLayout, "translationY", 0f)
+
+            // Make it so.
+            objectAnimator.start()
+        }
+    }
 
     // Handle touches.
     @SuppressLint("ClickableViewAccessibility")