From 16014a8807dd22bb64d583d97ef6e315c9e56d5b Mon Sep 17 00:00:00 2001
From: Alex Ning <chineseperson5@gmail.com>
Date: Sat, 10 Apr 2021 22:13:29 +0800
Subject: Fix CommentIndentationView losing state.

---
 .../CommentAndPostRecyclerViewAdapter.java         |  8 +--
 .../customtheme/CustomThemeWrapper.java            | 14 ++---
 .../customviews/CommentIndentationView.java        | 64 +++++++++++++++++++++-
 3 files changed, 71 insertions(+), 15 deletions(-)

diff --git a/app/src/main/java/ml/docilealligator/infinityforreddit/adapters/CommentAndPostRecyclerViewAdapter.java b/app/src/main/java/ml/docilealligator/infinityforreddit/adapters/CommentAndPostRecyclerViewAdapter.java
index 306b607a..f463ed31 100644
--- a/app/src/main/java/ml/docilealligator/infinityforreddit/adapters/CommentAndPostRecyclerViewAdapter.java
+++ b/app/src/main/java/ml/docilealligator/infinityforreddit/adapters/CommentAndPostRecyclerViewAdapter.java
@@ -238,7 +238,7 @@ public class CommentAndPostRecyclerViewAdapter extends RecyclerView.Adapter<Recy
     private int mCommentIconAndInfoColor;
     private int mFullyCollapsedCommentBackgroundColor;
     private int mAwardedCommentBackgroundColor;
-    private int[] verticalBlockColors;
+    private Integer[] verticalBlockColors;
 
     private Drawable mCommentIcon;
     private float mScale;
@@ -572,7 +572,7 @@ public class CommentAndPostRecyclerViewAdapter extends RecyclerView.Adapter<Recy
         mFullyCollapsedCommentBackgroundColor = customThemeWrapper.getFullyCollapsedCommentBackgroundColor();
         mAwardedCommentBackgroundColor = customThemeWrapper.getAwardedCommentBackgroundColor();
 
-        verticalBlockColors = new int[] {
+        verticalBlockColors = new Integer[] {
                 customThemeWrapper.getCommentVerticalBarColor1(),
                 customThemeWrapper.getCommentVerticalBarColor2(),
                 customThemeWrapper.getCommentVerticalBarColor3(),
@@ -1896,9 +1896,7 @@ public class CommentAndPostRecyclerViewAdapter extends RecyclerView.Adapter<Recy
             ((CommentViewHolder) holder).downvoteButton.setColorFilter(mCommentIconAndInfoColor, android.graphics.PorterDuff.Mode.SRC_IN);
             ((CommentViewHolder) holder).replyButton.setColorFilter(mCommentIconAndInfoColor, android.graphics.PorterDuff.Mode.SRC_IN);
             ((CommentViewHolder) holder).itemView.setBackgroundColor(mCommentBackgroundColor);
-        } else if (holder instanceof CommentFullyCollapsedViewHolder) {
-        } else if (holder instanceof LoadMoreChildCommentsViewHolder) {
-        } else if (holder instanceof PostDetailBaseViewHolder) {
+        }  else if (holder instanceof PostDetailBaseViewHolder) {
             ((PostDetailBaseViewHolder) holder).mUpvoteButton.setColorFilter(mPostIconAndInfoColor, android.graphics.PorterDuff.Mode.SRC_IN);
             ((PostDetailBaseViewHolder) holder).mScoreTextView.setTextColor(mPostIconAndInfoColor);
             ((PostDetailBaseViewHolder) holder).mDownvoteButton.setColorFilter(mPostIconAndInfoColor, android.graphics.PorterDuff.Mode.SRC_IN);
diff --git a/app/src/main/java/ml/docilealligator/infinityforreddit/customtheme/CustomThemeWrapper.java b/app/src/main/java/ml/docilealligator/infinityforreddit/customtheme/CustomThemeWrapper.java
index 84c8f326..f5e9c6bd 100644
--- a/app/src/main/java/ml/docilealligator/infinityforreddit/customtheme/CustomThemeWrapper.java
+++ b/app/src/main/java/ml/docilealligator/infinityforreddit/customtheme/CustomThemeWrapper.java
@@ -357,37 +357,37 @@ public class CustomThemeWrapper {
                 getDefaultColor("#F0F0F0", "#3C3C3C", "#3C3C3C"));
     }
 
-    public int getCommentVerticalBarColor1() {
+    public Integer getCommentVerticalBarColor1() {
         return getThemeSharedPreferences().getInt(CustomThemeSharedPreferencesUtils.COMMENT_VERTICAL_BAR_COLOR_1,
                 getDefaultColor("#1565C0", "#1565C0", "#1565C0"));
     }
 
-    public int getCommentVerticalBarColor2() {
+    public Integer getCommentVerticalBarColor2() {
         return getThemeSharedPreferences().getInt(CustomThemeSharedPreferencesUtils.COMMENT_VERTICAL_BAR_COLOR_2,
                 getDefaultColor("#EE02BE", "#C300B3", "#C300B3"));
     }
 
-    public int getCommentVerticalBarColor3() {
+    public Integer getCommentVerticalBarColor3() {
         return getThemeSharedPreferences().getInt(CustomThemeSharedPreferencesUtils.COMMENT_VERTICAL_BAR_COLOR_3,
                 getDefaultColor("#02DFEE", "#00B8DA", "#00B8DA"));
     }
 
-    public int getCommentVerticalBarColor4() {
+    public Integer getCommentVerticalBarColor4() {
         return getThemeSharedPreferences().getInt(CustomThemeSharedPreferencesUtils.COMMENT_VERTICAL_BAR_COLOR_4,
                 getDefaultColor("#EED502", "#EDCA00", "#EDCA00"));
     }
 
-    public int getCommentVerticalBarColor5() {
+    public Integer getCommentVerticalBarColor5() {
         return getThemeSharedPreferences().getInt(CustomThemeSharedPreferencesUtils.COMMENT_VERTICAL_BAR_COLOR_5,
                 getDefaultColor("#EE0220", "#EE0219", "#EE0219"));
     }
 
-    public int getCommentVerticalBarColor6() {
+    public Integer getCommentVerticalBarColor6() {
         return getThemeSharedPreferences().getInt(CustomThemeSharedPreferencesUtils.COMMENT_VERTICAL_BAR_COLOR_6,
                 getDefaultColor("#02EE6E", "#00B925", "#00B925"));
     }
 
-    public int getCommentVerticalBarColor7() {
+    public Integer getCommentVerticalBarColor7() {
         return getThemeSharedPreferences().getInt(CustomThemeSharedPreferencesUtils.COMMENT_VERTICAL_BAR_COLOR_7,
                 getDefaultColor("#EE4602", "#EE4602", "#EE4602"));
     }
diff --git a/app/src/main/java/ml/docilealligator/infinityforreddit/customviews/CommentIndentationView.java b/app/src/main/java/ml/docilealligator/infinityforreddit/customviews/CommentIndentationView.java
index 9d504b34..07697075 100644
--- a/app/src/main/java/ml/docilealligator/infinityforreddit/customviews/CommentIndentationView.java
+++ b/app/src/main/java/ml/docilealligator/infinityforreddit/customviews/CommentIndentationView.java
@@ -3,6 +3,8 @@ package ml.docilealligator.infinityforreddit.customviews;
 import android.content.Context;
 import android.graphics.Canvas;
 import android.graphics.Paint;
+import android.os.Parcel;
+import android.os.Parcelable;
 import android.util.AttributeSet;
 import android.widget.LinearLayout;
 
@@ -16,13 +18,14 @@ public class CommentIndentationView extends LinearLayout {
 
     private final Paint paint;
     private int level;
-    private int[] colors;
+    private Integer[] colors;
     private ArrayList<Integer> startXs;
     private final int spacing;
     private final int pathWidth;
 
     public CommentIndentationView(Context context, @Nullable AttributeSet attrs) {
         super(context, attrs);
+        setSaveEnabled(true);
         setWillNotDraw(false);
         paint = new Paint(Paint.ANTI_ALIAS_FLAG);
         pathWidth = (int) Utils.convertDpToPixel(2, context);
@@ -36,6 +39,7 @@ public class CommentIndentationView extends LinearLayout {
     protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
         super.onLayout(changed, left, top, right, bottom);
 
+        startXs.clear();
         for (int i = 0; i < level; i++) {
             startXs.add(spacing * (i + 1) + pathWidth);
         }
@@ -49,13 +53,67 @@ public class CommentIndentationView extends LinearLayout {
             paint.setColor(colors[i % 7]);
             canvas.drawLine(startXs.get(i), 0, startXs.get(i), getHeight(), paint);
         }
-        startXs.clear();
     }
 
-    public void setLevelAndColors(int level, int[] colors) {
+    @Nullable
+    @Override
+    protected Parcelable onSaveInstanceState() {
+        Parcelable parcelable = super.onSaveInstanceState();
+        SavedState myState = new SavedState(parcelable);
+        myState.startXs = this.startXs;
+        myState.colors = this.colors;
+        return parcelable;
+    }
+
+    @Override
+    protected void onRestoreInstanceState(Parcelable state) {
+        SavedState savedState = (SavedState) state;
+
+        super.onRestoreInstanceState(savedState.getSuperState());
+
+        this.startXs = savedState.startXs;
+        this.colors = savedState.colors;
+
+        invalidate();
+    }
+
+    public void setLevelAndColors(int level, Integer[] colors) {
         this.colors = colors;
         this.level = level;
         int indentationSpacing = (level * spacing + pathWidth);
         setPaddingRelative(indentationSpacing, 0, pathWidth, 0);
+        invalidate();
+    }
+
+    private static class SavedState extends BaseSavedState {
+        ArrayList<Integer> startXs;
+        Integer[] colors;
+
+        SavedState(Parcelable superState) {
+            super(superState);
+        }
+
+        private SavedState(Parcel in) {
+            super(in);
+            startXs = in.readArrayList(SavedState.class.getClassLoader());
+            colors = (Integer[]) in.readArray(SavedState.class.getClassLoader());
+        }
+
+        @Override
+        public void writeToParcel(Parcel out, int flags) {
+            super.writeToParcel(out, flags);
+            out.writeList(startXs);
+            out.writeArray(colors);
+        }
+
+        public static final Parcelable.Creator<SavedState> CREATOR = new Parcelable.Creator<SavedState>() {
+            public SavedState createFromParcel(Parcel in) {
+                return new SavedState(in);
+            }
+
+            public SavedState[] newArray(int size) {
+                return new SavedState[size];
+            }
+        };
     }
 }
-- 
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