use the theme colors for the fastscroller

Clover/app/src/main/java/org/floens/chan/ui/layout/ThreadListLayout.java

@@ -20,12 +20,9 @@ package org.floens.chan.ui.layout;
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
 import android.content.Context;
-import android.content.res.Resources;
 import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
 import android.graphics.Canvas;
-import android.graphics.drawable.Drawable;
-import android.graphics.drawable.StateListDrawable;
 import android.os.Handler;
 import android.os.Looper;
 import android.support.v7.widget.GridLayoutManager;
@@ -53,6 +50,7 @@ import org.floens.chan.ui.cell.PostCellInterface;
 import org.floens.chan.ui.cell.ThreadStatusCell;
 import org.floens.chan.ui.toolbar.Toolbar;
 import org.floens.chan.ui.view.FastScroller;
+import org.floens.chan.ui.view.FastScrollerHelper;
 import org.floens.chan.ui.view.ThumbnailView;
 import org.floens.chan.utils.AndroidUtils;
 
@@ -63,7 +61,6 @@ import static org.floens.chan.utils.AndroidUtils.ROBOTO_MEDIUM;
 import static org.floens.chan.utils.AndroidUtils.dp;
 import static org.floens.chan.utils.AndroidUtils.getAttrColor;
 import static org.floens.chan.utils.AndroidUtils.getDimen;
-import static org.floens.chan.utils.AndroidUtils.getRes;
 
 /**
  * A layout that wraps around a {@link RecyclerView} and a {@link ReplyLayout} to manage showing and replying to posts.
@@ -548,26 +545,7 @@ public class ThreadListLayout extends FrameLayout implements ReplyLayout.ReplyLa
             }
         } else {
             if (fastScroller == null) {
-                Resources resources = getResources();
+                fastScroller = FastScrollerHelper.create(recyclerView);
-                StateListDrawable verticalThumbDrawable = (StateListDrawable) resources
-                        .getDrawable(R.drawable.recyclerview_fastscroll_thumb_selector);
-                Drawable verticalTrackDrawable = getRes()
-                        .getDrawable(R.drawable.recyclerview_fastscroll_track_selector);
-                StateListDrawable horizontalThumbDrawable = (StateListDrawable) resources
-                        .getDrawable(R.drawable.recyclerview_fastscroll_thumb_selector);
-                Drawable horizontalTrackDrawable = resources
-                        .getDrawable(R.drawable.recyclerview_fastscroll_track_selector);
-
-                final int defaultThickness = dp(4);
-                final int targetWidth = dp(8);
-                final int minimumRange = dp(50);
-                final int margin = dp(0);
-                final int thumbMinLength = dp(23);
-
-                fastScroller = new FastScroller(recyclerView,
-                        verticalThumbDrawable, verticalTrackDrawable,
-                        horizontalThumbDrawable, horizontalTrackDrawable,
-                        defaultThickness, minimumRange, margin, thumbMinLength, targetWidth);
             }
         }
 

Clover/app/src/main/java/org/floens/chan/ui/view/FastScrollerHelper.java

@@ -0,0 +1,45 @@
+package org.floens.chan.ui.view;
+
+import android.graphics.drawable.ColorDrawable;
+import android.graphics.drawable.StateListDrawable;
+import android.support.v7.widget.RecyclerView;
+
+import static org.floens.chan.ui.theme.ThemeHelper.theme;
+import static org.floens.chan.utils.AndroidUtils.dp;
+
+/**
+ * Helper for attaching a FastScroller with the correct theme colors and default values that
+ * make it look like a normal scrollbar.
+ */
+public class FastScrollerHelper {
+    public static FastScroller create(RecyclerView recyclerView) {
+        StateListDrawable thumb = getThumb();
+        StateListDrawable track = getTrack();
+
+        final int defaultThickness = dp(4);
+        final int targetWidth = dp(8);
+        final int minimumRange = dp(50);
+        final int margin = dp(0);
+        final int thumbMinLength = dp(23);
+
+        return new FastScroller(recyclerView,
+                thumb, track, thumb, track,
+                defaultThickness, minimumRange, margin, thumbMinLength, targetWidth);
+    }
+
+    private static StateListDrawable getThumb() {
+        StateListDrawable list = new StateListDrawable();
+        list.addState(new int[]{android.R.attr.state_pressed},
+                new ColorDrawable(theme().accentColor.color));
+        list.addState(new int[]{}, new ColorDrawable(theme().textSecondary));
+        return list;
+    }
+
+    private static StateListDrawable getTrack() {
+        StateListDrawable list = new StateListDrawable();
+        list.addState(new int[]{android.R.attr.state_pressed},
+                new ColorDrawable(theme().textHint));
+        list.addState(new int[]{}, new ColorDrawable(0));
+        return list;
+    }
+}

Clover/app/src/main/res/drawable/recyclerview_fastscroll_thumb_selector.xml

@@ -1,29 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?><!--
-Clover - 4chan browser https://github.com/Floens/Clover/
-Copyright (C) 2014  Floens
-
-This program 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.
-
-This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
--->
-<selector xmlns:android="http://schemas.android.com/apk/res/android">
-    <item android:state_pressed="true">
-        <shape android:shape="rectangle">
-            <solid android:color="#ff009688" />
-        </shape>
-    </item>
-    <item>
-        <shape android:shape="rectangle">
-            <solid android:color="#5a000000" />
-        </shape>
-    </item>
-</selector>

Clover/app/src/main/res/drawable/recyclerview_fastscroll_track_selector.xml

@@ -1,29 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?><!--
-Clover - 4chan browser https://github.com/Floens/Clover/
-Copyright (C) 2014  Floens
-
-This program 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.
-
-This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
--->
-<selector xmlns:android="http://schemas.android.com/apk/res/android">
-    <item android:state_pressed="true">
-        <shape android:shape="rectangle">
-            <solid android:color="#12000000" />
-        </shape>
-    </item>
-    <item>
-        <shape android:shape="rectangle">
-            <solid android:color="#00000000" />
-        </shape>
-    </item>
-</selector>