Refactor main menu to Kotlin

So much less code to write and maintain... love it.

app/src/main/kotlin/org/bspeice/minimalbible/activity/viewer/BibleMenu.kt

@@ -0,0 +1,84 @@
+package org.bspeice.minimalbible.activity.viewer
+
+import android.widget.BaseExpandableListAdapter
+import android.view.View
+import android.view.ViewGroup
+import org.crosswire.jsword.book.Book
+import org.crosswire.jsword.book.getVersification
+import org.crosswire.jsword.versification.getBooks
+import org.crosswire.jsword.book.bookName
+import android.widget.TextView
+import org.bspeice.minimalbible.R
+import android.content.Context
+import android.view.LayoutInflater
+
+/**
+ * Created by bspeice on 10/24/14.
+ */
+
+class BibleMenu(val b: Book) : BaseExpandableListAdapter() {
+
+    // Map BibleBooks to the number of chapters they have
+    val menuMappings = b.getVersification().getBooks().map {
+        Pair(it, b.getVersification().getLastChapter(it))
+    }
+
+    var groupHighlighted: Int = 0
+    var childHighlighted: Int = 0
+
+    override fun getGroupCount(): Int = menuMappings.count()
+
+    override fun getChildrenCount(group: Int): Int = menuMappings.elementAt(group).component2()
+
+    override fun getGroup(group: Int): String =
+            b.bookName(menuMappings.elementAt(group).component1())
+
+    override fun getChild(group: Int, child: Int): Int = child + 1 // Index offset
+
+    override fun getGroupId(group: Int): Long = group.toLong()
+
+    override fun getChildId(group: Int, child: Int): Long = child.toLong()
+
+    override fun hasStableIds(): Boolean = true
+
+    override fun isChildSelectable(group: Int, child: Int): Boolean = true
+
+    private fun doBinding(convertView: View?, parent: ViewGroup?,
+                          obj: Any, highlight: Boolean): View {
+        val finalView: View = if (convertView != null) convertView
+        else {
+            val inflater = parent!!.getContext()
+                    .getSystemService(Context.LAYOUT_INFLATER_SERVICE) as LayoutInflater
+            inflater.inflate(R.layout.list_navigation_drawer, parent, false)
+        }
+
+        val holder: NavItemHolder = if (finalView.getTag() != null) finalView.getTag() as NavItemHolder
+        else NavItemHolder(finalView, R.id.navlist_content)
+
+        holder.bind(obj, highlight)
+        finalView.setTag(holder)
+        return finalView
+    }
+
+    override fun getGroupView(position: Int, expanded: Boolean,
+                              convertView: View?, parent: ViewGroup?): View =
+            doBinding(convertView, parent, getGroup(position), position == groupHighlighted)
+
+    override fun getChildView(group: Int, child: Int, isLast: Boolean,
+                              convertView: View?, parent: ViewGroup?): View =
+            doBinding(convertView, parent, getChild(group, child), child == childHighlighted)
+
+    // Resource should be IdRes
+    class NavItemHolder(val bindTo: View, resource: Int) {
+        val content: TextView = bindTo.findViewById(resource) as TextView
+
+        fun bind(obj: Any, highlighted: Boolean) {
+            content.setText(obj.toString())
+            if (highlighted)
+                content.setTextColor(bindTo.getResources().getColor(R.color.navbar_highlight))
+            else
+                content.setTextColor(bindTo.getResources().getColor(R.color.navbar_unhighlighted))
+        }
+    }
+
+}

app/src/main/kotlin/org/bspeice/minimalbible/activity/viewer/BibleViewClient.kt

@@ -5,10 +5,10 @@ import org.bspeice.minimalbible.service.book.VerseLookupService
 import android.webkit.WebViewClient
 import android.webkit.JavascriptInterface
 import org.crosswire.jsword.book.Book
-import org.crosswire.jsword.versification.getVersification
 import java.util.ArrayList
 import android.util.Log
 import rx.subjects.PublishSubject
+import org.crosswire.jsword.book.getVersification
 
 /**
  * Created by bspeice on 9/14/14.