From bf9dcacd40c38d865a8db495ef9bc85ee5859e0f Mon Sep 17 00:00:00 2001
From: Austin Huang <im@austinhuang.me>
Date: Wed, 4 Nov 2020 13:02:23 -0500
Subject: [PATCH] add #122 point 2

---
 .../fragments/StoryViewerFragment.java        | 32 +++++++++++++-----
 .../main/res/layout/fragment_post_view.xml    |  4 ---
 .../main/res/layout/fragment_story_viewer.xml | 33 +++++++++++++++++--
 app/src/main/res/layout/item_story.xml        |  2 +-
 4 files changed, 55 insertions(+), 16 deletions(-)
 delete mode 100644 app/src/main/res/layout/fragment_post_view.xml

diff --git a/app/src/main/java/awais/instagrabber/fragments/StoryViewerFragment.java b/app/src/main/java/awais/instagrabber/fragments/StoryViewerFragment.java
index c0bb18c5..aa9ae2bd 100644
--- a/app/src/main/java/awais/instagrabber/fragments/StoryViewerFragment.java
+++ b/app/src/main/java/awais/instagrabber/fragments/StoryViewerFragment.java
@@ -319,15 +319,7 @@ public class StoryViewerFragment extends Fragment {
                 final Object feedStoryModel = isRightSwipe
                                               ? finalModels.get(index - 1)
                                               : finalModels.size() == index + 1 ? null : finalModels.get(index + 1);
-                if (feedStoryModel != null) {
-                    if (fetching) {
-                        Toast.makeText(context, R.string.be_patient, Toast.LENGTH_SHORT).show();
-                        return;
-                    }
-                    fetching = true;
-                    currentFeedStoryIndex = isRightSwipe ? (index - 1) : (index + 1);
-                    resetView();
-                }
+                paginateStories(feedStoryModel, context, isRightSwipe, currentFeedStoryIndex == finalModels.size() - 2);
                 return;
             }
             if (isRightSwipe) {
@@ -362,6 +354,14 @@ public class StoryViewerFragment extends Fragment {
                 return false;
             }
         };
+
+        if (hasFeedStories) {
+            binding.btnBackward.setVisibility(currentFeedStoryIndex == 0 ? View.INVISIBLE : View.VISIBLE);
+            binding.btnForward.setVisibility(currentFeedStoryIndex == finalModels.size() - 1 ? View.INVISIBLE : View.VISIBLE);
+            binding.btnBackward.setOnClickListener(v -> paginateStories(finalModels.get(currentFeedStoryIndex - 1), context, true, false));
+            binding.btnForward.setOnClickListener(v -> paginateStories(finalModels.get(currentFeedStoryIndex + 1), context, false, currentFeedStoryIndex == finalModels.size() - 2));
+        }
+
         binding.imageViewer.setTapListener(simpleOnGestureListener);
         binding.spotify.setOnClickListener(v -> {
             final Object tag = v.getTag();
@@ -780,4 +780,18 @@ public class StoryViewerFragment extends Fragment {
         try { player.release(); } catch (Exception ignored) { }
         player = null;
     }
+
+    private void paginateStories(Object feedStory, Context context, boolean backward, boolean last) {
+        if (feedStory != null) {
+            if (fetching) {
+                Toast.makeText(context, R.string.be_patient, Toast.LENGTH_SHORT).show();
+                return;
+            }
+            fetching = true;
+            binding.btnBackward.setVisibility(currentFeedStoryIndex == 1 && backward ? View.INVISIBLE : View.VISIBLE);
+            binding.btnForward.setVisibility(last ? View.INVISIBLE : View.VISIBLE);
+            currentFeedStoryIndex = backward ? (currentFeedStoryIndex - 1) : (currentFeedStoryIndex + 1);
+            resetView();
+        }
+    }
 }
diff --git a/app/src/main/res/layout/fragment_post_view.xml b/app/src/main/res/layout/fragment_post_view.xml
deleted file mode 100644
index 7ce45884..00000000
--- a/app/src/main/res/layout/fragment_post_view.xml
+++ /dev/null
@@ -1,4 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<androidx.viewpager2.widget.ViewPager2 xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent" />
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_story_viewer.xml b/app/src/main/res/layout/fragment_story_viewer.xml
index d666260f..fb16343a 100644
--- a/app/src/main/res/layout/fragment_story_viewer.xml
+++ b/app/src/main/res/layout/fragment_story_viewer.xml
@@ -116,12 +116,41 @@
         </androidx.appcompat.widget.LinearLayoutCompat>
     </FrameLayout>
 
+    <com.google.android.material.button.MaterialButton
+        android:id="@+id/btnBackward"
+        style="@style/Widget.MaterialComponents.Button.TextButton"
+        android:layout_width="40dp"
+        android:layout_height="0dp"
+        android:visibility="visible"
+        app:icon="@drawable/exo_ic_skip_previous"
+        app:iconGravity="textStart"
+        app:iconPadding="0dp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toStartOf="@id/storiesList"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="@id/storiesList" />
+
     <androidx.recyclerview.widget.RecyclerView
         android:id="@+id/storiesList"
-        android:layout_width="match_parent"
+        android:layout_width="0dp"
         android:layout_height="wrap_content"
         android:clipToPadding="false"
+        app:layout_constraintTop_toBottomOf="@id/story_container"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toStartOf="@id/btnForward"
+        app:layout_constraintStart_toEndOf="@id/btnBackward" />
+
+    <com.google.android.material.button.MaterialButton
+        android:id="@+id/btnForward"
+        style="@style/Widget.MaterialComponents.Button.TextButton"
+        android:layout_width="40dp"
+        android:layout_height="0dp"
+        android:visibility="visible"
+        app:icon="@drawable/exo_ic_skip_next"
+        app:iconGravity="textStart"
+        app:iconPadding="0dp"
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent" />
+        app:layout_constraintStart_toEndOf="@id/storiesList"
+        app:layout_constraintTop_toTopOf="@id/storiesList" />
 </androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/item_story.xml b/app/src/main/res/layout/item_story.xml
index be2bd4ee..94044d02 100755
--- a/app/src/main/res/layout/item_story.xml
+++ b/app/src/main/res/layout/item_story.xml
@@ -5,7 +5,7 @@
     android:layout_height="@dimen/story_item_height"
     android:clickable="true"
     android:focusable="true"
-    android:layout_margin="8dp"
+    android:layout_margin="4dp"
     android:foreground="?android:selectableItemBackground">
 
     <com.facebook.drawee.view.SimpleDraweeView