Use matching status bar color during action mode

Closes #3552
FREEBIE.

res/values/colors.xml

@@ -32,6 +32,7 @@
     <color name="textsecure_holo_blue_light">#ff33b5e5</color>
 
     <color name="dark_action_bar">#ff111111</color>
+    <color name="action_mode_status_bar">#ff1f1f1f</color>
     <color name="touch_highlight">#400099cc</color>
     <color name="light_button">#33ffffff</color>
     <color name="light_button_highlight">#66ffffff</color>

src/org/thoughtcrime/securesms/ConversationFragment.java

@@ -6,6 +6,7 @@ import android.content.DialogInterface;
 import android.content.Intent;
 import android.database.Cursor;
 import android.os.AsyncTask;
+import android.os.Build;
 import android.os.Bundle;
 import android.support.v4.app.ListFragment;
 import android.support.v4.app.LoaderManager;
@@ -21,6 +22,7 @@ import android.view.MenuInflater;
 import android.view.MenuItem;
 import android.view.View;
 import android.view.ViewGroup;
+import android.view.Window;
 import android.widget.AdapterView;
 import android.widget.ListView;
 import android.widget.Toast;
@@ -345,11 +347,19 @@ public class ConversationFragment extends ListFragment
 
   private class ActionModeCallback implements ActionMode.Callback {
 
+    private int statusBarColor;
+
     @Override
     public boolean onCreateActionMode(ActionMode mode, Menu menu) {
       MenuInflater inflater = mode.getMenuInflater();
       inflater.inflate(R.menu.conversation_context, menu);
 
+      if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+        Window window = getActivity().getWindow();
+        statusBarColor = window.getStatusBarColor();
+        window.setStatusBarColor(getResources().getColor(R.color.action_mode_status_bar));
+      }
+
       setCorrectMenuVisibility(menu);
       return true;
     }
@@ -364,6 +374,10 @@ public class ConversationFragment extends ListFragment
       ((ConversationAdapter)getListAdapter()).getBatchSelected().clear();
       ((ConversationAdapter)getListAdapter()).notifyDataSetChanged();
 
+      if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+        getActivity().getWindow().setStatusBarColor(statusBarColor);
+      }
+
       actionMode = null;
     }
 

src/org/thoughtcrime/securesms/ConversationListFragment.java

@@ -19,8 +19,11 @@ package org.thoughtcrime.securesms;
 import android.app.ProgressDialog;
 import android.content.DialogInterface;
 import android.content.Intent;
+import android.content.res.TypedArray;
 import android.database.Cursor;
+import android.graphics.Color;
 import android.os.AsyncTask;
+import android.os.Build;
 import android.os.Bundle;
 import android.support.v4.app.Fragment;
 import android.support.v4.app.LoaderManager;
@@ -267,6 +270,11 @@ public class ConversationListFragment extends Fragment
     mode.setTitle(R.string.conversation_fragment_cab__batch_selection_mode);
     mode.setSubtitle(null);
 
+    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+      getActivity().getWindow()
+        .setStatusBarColor(getResources().getColor(R.color.action_mode_status_bar));
+    }
+
     return true;
   }
 
@@ -288,6 +296,14 @@ public class ConversationListFragment extends Fragment
   @Override
   public void onDestroyActionMode(ActionMode mode) {
     getListAdapter().initializeBatchMode(false);
+
+    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+      TypedArray color = getActivity().getTheme()
+        .obtainStyledAttributes(new int[] { android.R.attr.statusBarColor });
+      getActivity().getWindow().setStatusBarColor(color.getColor(0, Color.BLACK));
+      color.recycle();
+    }
+
     actionMode = null;
   }