bright background for unread messages

Closes #3909
// FREEBIE

res/drawable-v21/conversation_list_item_unread_background.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ripple xmlns:android="http://schemas.android.com/apk/res/android"
+        android:color="@color/textsecure_primary">
+    <item android:id="@android:id/mask" android:drawable="@android:color/black" />
+    <item>
+        <selector>
+            <item android:drawable="@color/textsecure_primary_alpha33" android:state_selected="true" />
+            <item android:drawable="@color/conversation_list_item_background_unread_light" />
+        </selector>
+    </item>
+</ripple>

res/drawable-v21/conversation_list_item_unread_background_dark.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ripple xmlns:android="http://schemas.android.com/apk/res/android"
+        android:color="@color/textsecure_primary">
+    <item android:id="@android:id/mask" android:drawable="@android:color/black" />
+    <item>
+        <selector>
+            <item android:drawable="@color/textsecure_primary_alpha33" android:state_selected="true" />
+            <item android:drawable="@color/conversation_list_item_background_unread_dark" />
+        </selector>
+    </item>
+</ripple>

res/drawable/conversation_list_item_unread_background.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="@color/textsecure_primary_alpha33" android:state_selected="true" />
+    <item android:drawable="@color/textsecure_primary_alpha33" android:state_pressed="true" />
+    <item android:drawable="@color/conversation_list_item_background_unread_light" />
+</selector>

res/drawable/conversation_list_item_unread_background_dark.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="@color/textsecure_primary_alpha33" android:state_selected="true" />
+    <item android:drawable="@color/textsecure_primary_alpha33" android:state_pressed="true" />
+    <item android:drawable="@color/conversation_list_item_background_unread_dark" />
+</selector>

res/values/themes.xml

@@ -79,6 +79,8 @@
         <item name="android:windowBackground">@color/gray5</item>
         <!--<item name="android:windowContentOverlay">@drawable/compat_actionbar_shadow_background</item>-->
         <item name="conversation_list_item_background_selected">@drawable/list_selected_holo_light</item>
+        <item name="conversation_list_item_background_unread">@drawable/conversation_list_item_unread_background</item>
+        <item name="conversation_list_item_background_read">@drawable/conversation_list_item_background</item>
         <item name="conversation_list_item_count_color">#66333333</item>
         <item name="conversation_list_item_contact_color">#FF333333</item>
         <item name="conversation_list_item_subject_color">#FF444444</item>
@@ -190,6 +192,8 @@
         <item name="android:windowBackground">@color/black</item>
         <item name="md_dark_theme">true</item>
         <item name="conversation_list_item_background_selected">@drawable/list_selected_holo_dark</item>
+        <item name="conversation_list_item_background_unread">@drawable/conversation_list_item_unread_background_dark</item>
+        <item name="conversation_list_item_background_read">@drawable/conversation_list_item_background</item>
         <item name="conversation_list_item_count_color">#66dddddd</item>
         <item name="conversation_list_item_contact_color">#ffdddddd</item>
         <item name="conversation_list_item_subject_color">#ffdddddd</item>

src/org/thoughtcrime/securesms/ConversationListItem.java

@@ -24,8 +24,8 @@ import android.graphics.drawable.RippleDrawable;
 import android.os.Build.VERSION;
 import android.os.Build.VERSION_CODES;
 import android.os.Handler;
+import android.support.annotation.DrawableRes;
 import android.util.AttributeSet;
-import android.view.View;
 import android.widget.RelativeLayout;
 import android.widget.TextView;
 
@@ -34,6 +34,7 @@ import org.thoughtcrime.securesms.components.FromTextView;
 import org.thoughtcrime.securesms.database.model.ThreadRecord;
 import org.thoughtcrime.securesms.recipients.Recipients;
 import org.thoughtcrime.securesms.util.DateUtils;
+import org.thoughtcrime.securesms.util.ResUtil;
 
 import java.util.Locale;
 import java.util.Set;
@@ -55,7 +56,6 @@ public class ConversationListItem extends RelativeLayout
   private final static Typeface BOLD_TYPEFACE  = Typeface.create("sans-serif", Typeface.BOLD);
   private final static Typeface LIGHT_TYPEFACE = Typeface.create("sans-serif-light", Typeface.NORMAL);
 
-  private Context         context;
   private Set<Long>       selectedThreads;
   private Recipients      recipients;
   private long            threadId;
@@ -65,25 +65,28 @@ public class ConversationListItem extends RelativeLayout
   private boolean         read;
   private AvatarImageView contactPhotoImage;
 
+  private final @DrawableRes int readBackground;
+  private final @DrawableRes int unreadBackround;
+
   private final Handler handler = new Handler();
   private int distributionType;
 
   public ConversationListItem(Context context) {
-    super(context);
+    this(context, null);
-    this.context = context;
   }
 
   public ConversationListItem(Context context, AttributeSet attrs) {
     super(context, attrs);
-    this.context = context;
+    readBackground  = ResUtil.getDrawableRes(context, R.attr.conversation_list_item_background_read);
+    unreadBackround = ResUtil.getDrawableRes(context, R.attr.conversation_list_item_background_unread);
   }
 
   @Override
   protected void onFinishInflate() {
     super.onFinishInflate();
-    this.subjectView       = (TextView) findViewById(R.id.subject);
+    this.subjectView       = (TextView)        findViewById(R.id.subject);
-    this.fromView          = (FromTextView) findViewById(R.id.from);
+    this.fromView          = (FromTextView)    findViewById(R.id.from);
-    this.dateView          = (TextView) findViewById(R.id.date);
+    this.dateView          = (TextView)        findViewById(R.id.date);
     this.contactPhotoImage = (AvatarImageView) findViewById(R.id.contact_photo_image);
   }
 
@@ -101,12 +104,13 @@ public class ConversationListItem extends RelativeLayout
     this.subjectView.setTypeface(read ? LIGHT_TYPEFACE : BOLD_TYPEFACE);
 
     if (thread.getDate() > 0) {
-      CharSequence date = DateUtils.getBriefRelativeTimeSpanString(context, locale, thread.getDate());
+      CharSequence date = DateUtils.getBriefRelativeTimeSpanString(getContext(), locale, thread.getDate());
       dateView.setText(read ? date : color(getResources().getColor(R.color.textsecure_primary), date));
       dateView.setTypeface(read ? LIGHT_TYPEFACE : BOLD_TYPEFACE);
     }
 
     setBatchState(batchMode);
+    setBackground(thread);
     setRippleColor(recipients);
     this.contactPhotoImage.setAvatar(recipients, true);
   }
@@ -132,11 +136,16 @@ public class ConversationListItem extends RelativeLayout
     return distributionType;
   }
 
+  private void setBackground(ThreadRecord thread) {
+    if (thread.isRead()) setBackgroundResource(readBackground);
+    else                 setBackgroundResource(unreadBackround);
+  }
+
   @TargetApi(VERSION_CODES.LOLLIPOP)
-  public void setRippleColor(Recipients recipients) {
+  private void setRippleColor(Recipients recipients) {
     if (VERSION.SDK_INT >= VERSION_CODES.LOLLIPOP) {
       ((RippleDrawable)(getBackground()).mutate())
-          .setColor(ColorStateList.valueOf(recipients.getColor().toConversationColor(context)));
+          .setColor(ColorStateList.valueOf(recipients.getColor().toConversationColor(getContext())));
     }
   }