Finalize sub item preferences

3 files changed, 113 insertions, 29 deletions

diff --git a/library/src/main/kotlin/ca/allanwang/kau/kpref/KPrefActivity.kt b/library/src/main/kotlin/ca/allanwang/kau/kpref/KPrefActivity.kt
index 7c4efee..9653029 100644
--- a/library/src/main/kotlin/ca/allanwang/kau/kpref/KPrefActivity.kt
+++ b/library/src/main/kotlin/ca/allanwang/kau/kpref/KPrefActivity.kt
@@ -2,33 +2,59 @@ package ca.allanwang.kau.kpref
 
 import android.os.Bundle
 import android.support.annotation.StringRes
+import android.support.v4.widget.TextViewCompat
 import android.support.v7.app.AppCompatActivity
 import android.support.v7.widget.RecyclerView
 import android.support.v7.widget.Toolbar
+import android.text.TextUtils
+import android.view.Gravity
 import android.view.View
+import android.view.animation.Animation
 import android.view.animation.AnimationUtils
 import android.widget.FrameLayout
+import android.widget.TextView
 import android.widget.ViewAnimator
 import ca.allanwang.kau.R
 import ca.allanwang.kau.kpref.items.KPrefItemCore
+import ca.allanwang.kau.logging.KL
 import ca.allanwang.kau.utils.bindView
 import ca.allanwang.kau.utils.resolveColor
 import ca.allanwang.kau.utils.statusBarColor
+import ca.allanwang.kau.utils.string
 import ca.allanwang.kau.views.RippleCanvas
+import ca.allanwang.kau.views.TextSwitcherThemed
 import com.mikepenz.fastadapter.commons.adapters.FastItemAdapter
+import java.util.*
 
 abstract class KPrefActivity : AppCompatActivity(), KPrefActivityContract {
 
     val adapter: FastItemAdapter<KPrefItemCore>
+        @Suppress("UNCHECKED_CAST")
         get() = recycler.adapter as FastItemAdapter<KPrefItemCore>
     val recycler: RecyclerView
         get() = prefHolder.currentView as RecyclerView
-    lateinit var baseRecycler: RecyclerView
     val bgCanvas: RippleCanvas by bindView(R.id.kau_ripple)
     val toolbarCanvas: RippleCanvas by bindView(R.id.kau_toolbar_ripple)
     val toolbar: Toolbar by bindView(R.id.kau_toolbar)
+    val toolbarTitle: TextSwitcherThemed by bindView(R.id.kau_toolbar_text)
     val prefHolder: ViewAnimator by bindView(R.id.kau_holder)
     private lateinit var globalOptions: GlobalOptions
+    private val titles: LinkedList<Pair<Int, Int>> = LinkedList()
+    private var index = -1
+    var animate: Boolean = true
+    val isRootPref: Boolean
+        get() = index <= 0
+
+    //we can't use the same animations for both views; otherwise the durations will sync
+    private val SLIDE_IN_LEFT_TITLE: Animation by lazy { AnimationUtils.loadAnimation(this, R.anim.kau_slide_in_left) }
+    private val SLIDE_IN_RIGHT_TITLE: Animation by lazy { AnimationUtils.loadAnimation(this, R.anim.kau_slide_in_right) }
+    private val SLIDE_OUT_LEFT_TITLE: Animation by lazy { AnimationUtils.loadAnimation(this, R.anim.kau_slide_out_left) }
+    private val SLIDE_OUT_RIGHT_TITLE: Animation by lazy { AnimationUtils.loadAnimation(this, R.anim.kau_slide_out_right) }
+
+    private val SLIDE_IN_LEFT_ITEMS: Animation by lazy { AnimationUtils.loadAnimation(this, R.anim.kau_slide_in_left) }
+    private val SLIDE_IN_RIGHT_ITEMS: Animation by lazy { AnimationUtils.loadAnimation(this, R.anim.kau_slide_in_right) }
+    private val SLIDE_OUT_LEFT_ITEMS: Animation by lazy { AnimationUtils.loadAnimation(this, R.anim.kau_slide_out_left) }
+    private val SLIDE_OUT_RIGHT_ITEMS: Animation by lazy { AnimationUtils.loadAnimation(this, R.anim.kau_slide_out_right) }
 
     /**
      * Core attribute builder that is consistent throughout all items
@@ -36,19 +62,9 @@ abstract class KPrefActivity : AppCompatActivity(), KPrefActivityContract {
      */
     abstract fun kPrefCoreAttributes(): CoreAttributeContract.() -> Unit
 
-    init {
-        setup()
-    }
-
-    private fun setup() {
-        val core = CoreAttributeBuilder()
-        val builder = kPrefCoreAttributes()
-        core.builder()
-        globalOptions = GlobalOptions(core, this)
-    }
-
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
+        //setup layout
         setContentView(R.layout.kau_activity_kpref)
         setSupportActionBar(toolbar)
         if (supportActionBar != null)
@@ -56,41 +72,81 @@ abstract class KPrefActivity : AppCompatActivity(), KPrefActivityContract {
                 setDisplayHomeAsUpEnabled(true)
                 setDisplayShowHomeEnabled(true)
                 toolbar.setNavigationOnClickListener { onBackPressed() }
+                setDisplayShowTitleEnabled(false)
             }
         window.decorView.systemUiVisibility = View.SYSTEM_UI_FLAG_LAYOUT_STABLE or View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN or View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
         statusBarColor = 0x30000000
         toolbarCanvas.set(resolveColor(R.attr.colorPrimary))
         bgCanvas.set(resolveColor(android.R.attr.colorBackground))
-        with(prefHolder) {
-            animateFirstView = false
-            inAnimation = AnimationUtils.loadAnimation(context, R.anim.kau_slide_in_right)
-            outAnimation = AnimationUtils.loadAnimation(context, R.anim.kau_slide_out_left)
-        }
+        prefHolder.animateFirstView = false
+        titles.add(Pair(-1, R.string.kau_settings))
+        //setup prefs
+        val core = CoreAttributeBuilder()
+        val builder = kPrefCoreAttributes()
+        core.builder()
+        globalOptions = GlobalOptions(core, this)
         showNextPrefs(onCreateKPrefs(savedInstanceState))
-        baseRecycler = recycler
+        with(toolbarTitle) {
+            setFactory {
+                TextView(this@KPrefActivity).apply {
+                    //replica of toolbar title
+                    gravity = Gravity.START
+                    setSingleLine()
+                    ellipsize = TextUtils.TruncateAt.END
+                    TextViewCompat.setTextAppearance(this, R.style.TextAppearance_AppCompat_Title)
+                }
+            }
+            setCurrentText(string(R.string.kau_settings))
+        }
+    }
+
+    override fun onPostCreate(savedInstanceState: Bundle?) {
+        super.onPostCreate(savedInstanceState)
     }
 
     override fun showNextPrefs(builder: KPrefAdapterBuilder.() -> Unit) {
+        index++
         val rv = RecyclerView(this).apply {
             layoutParams = FrameLayout.LayoutParams(FrameLayout.LayoutParams.MATCH_PARENT, FrameLayout.LayoutParams.MATCH_PARENT)
-            setKPrefAdapter(globalOptions, builder)
+            titles.addFirst(Pair(index, setKPrefAdapter(globalOptions, builder)))
         }
         with(prefHolder) {
-            inAnimation = AnimationUtils.loadAnimation(context, R.anim.kau_slide_in_right)
-            outAnimation = AnimationUtils.loadAnimation(context, R.anim.kau_slide_out_left)
+            inAnimation = if (animate) SLIDE_IN_RIGHT_ITEMS else null
+            outAnimation = if (animate) SLIDE_OUT_LEFT_ITEMS else null
             addView(rv)
             showNext()
         }
+        if (titles.first().second != -1) {
+            with(toolbarTitle) {
+                inAnimation = if (animate) SLIDE_IN_RIGHT_TITLE else null
+                outAnimation = if (animate) SLIDE_OUT_LEFT_TITLE else null
+                setText(string(titles.first().second))
+            }
+        }
     }
 
     override fun showPrevPrefs() {
+        if (index <= 0) {
+            KL.e("Cannot go back in KPrefActivity; already at index $index")
+            return
+        }
         val current = prefHolder.currentView
         with(prefHolder) {
-            inAnimation = AnimationUtils.loadAnimation(context, R.anim.kau_slide_in_left)
-            outAnimation = AnimationUtils.loadAnimation(context, R.anim.kau_slide_out_right)
+            inAnimation = if (animate) SLIDE_IN_LEFT_ITEMS else null
+            outAnimation = if (animate) SLIDE_OUT_RIGHT_ITEMS else null
             showPrevious()
             removeView(current)
         }
+        index--
+        titles.removeFirst()
+        val nextTitle = string(titles.first { it.first <= index && it.second != -1 }.second)
+        if (nextTitle != (toolbarTitle.currentView as TextView).text) {
+            with(toolbarTitle) {
+                inAnimation = if (animate) SLIDE_IN_LEFT_TITLE else null
+                outAnimation = if (animate) SLIDE_OUT_RIGHT_TITLE else null
+                setText(string(titles.first { it.first <= index && it.second != -1 }.second))
+            }
+        }
     }
 
     fun reload(vararg index: Int) {
@@ -113,7 +169,7 @@ abstract class KPrefActivity : AppCompatActivity(), KPrefActivityContract {
     }
 
     fun backPress(): Boolean {
-        if (baseRecycler != recycler) {
+        if (!isRootPref) {
             showPrevPrefs()
             return true
         }
diff --git a/library/src/main/kotlin/ca/allanwang/kau/kpref/KPrefBinder.kt b/library/src/main/kotlin/ca/allanwang/kau/kpref/KPrefBinder.kt
index 53cba99..a6ab8cd 100644
--- a/library/src/main/kotlin/ca/allanwang/kau/kpref/KPrefBinder.kt
+++ b/library/src/main/kotlin/ca/allanwang/kau/kpref/KPrefBinder.kt
@@ -15,8 +15,9 @@ import com.mikepenz.fastadapter.commons.adapters.FastItemAdapter
 
 /**
  * Base extension that will register the layout manager and adapter with the given items
+ * Returns toolbar title res
  */
-fun RecyclerView.setKPrefAdapter(globalOptions: GlobalOptions, builder: KPrefAdapterBuilder.() -> Unit): FastItemAdapter<KPrefItemCore> {
+fun RecyclerView.setKPrefAdapter(globalOptions: GlobalOptions, builder: KPrefAdapterBuilder.() -> Unit): Int {
     layoutManager = LinearLayoutManager(context)
     val adapter = FastItemAdapter<KPrefItemCore>()
     adapter.withOnClickListener { v, _, item, _ -> item.onClick(v, v.findViewById(R.id.kau_pref_inner_content)) }
@@ -24,7 +25,7 @@ fun RecyclerView.setKPrefAdapter(globalOptions: GlobalOptions, builder: KPrefAda
     builder.invoke(items)
     adapter.add(items.list)
     this.adapter = adapter
-    return adapter
+    return items.toolbarTitleRes
 }
 
 /**
@@ -61,6 +62,8 @@ class GlobalOptions(core: CoreAttributeContract, activity: KPrefActivityContract
  */
 class KPrefAdapterBuilder(internal val globalOptions: GlobalOptions) {
 
+    var toolbarTitleRes: Int = -1
+
     fun header(@StringRes title: Int)
             = list.add(KPrefHeader(KPrefItemCore.CoreBuilder(globalOptions, title)))
 
@@ -86,9 +89,11 @@ class KPrefAdapterBuilder(internal val globalOptions: GlobalOptions) {
             = list.add(KPrefText<T>(KPrefText.KPrefTextBuilder<T>(globalOptions, title, getter, setter)
             .apply { builder() }))
 
-    fun subItems(@StringRes title:Int,
-                 itemBuilder:KPrefAdapterBuilder.()->Unit)
-    = list.add(KPrefSubItems(KPrefSubItems.KPrefSubItemsBuilder(globalOptions, title, itemBuilder)))
+    fun subItems(@StringRes title: Int,
+                 itemBuilder: KPrefAdapterBuilder.() -> Unit,
+                 builder: KPrefSubItems.KPrefSubItemsContract.() -> Unit)
+            = list.add(KPrefSubItems(KPrefSubItems.KPrefSubItemsBuilder(globalOptions, title, itemBuilder)
+            .apply { builder() }))
 
     internal val list: MutableList<KPrefItemCore> = mutableListOf()
 }
\ No newline at end of file
diff --git a/library/src/main/kotlin/ca/allanwang/kau/views/TextSwitcherThemed.kt b/library/src/main/kotlin/ca/allanwang/kau/views/TextSwitcherThemed.kt
new file mode 100644
index 0000000..bdc529c
--- /dev/null
+++ b/library/src/main/kotlin/ca/allanwang/kau/views/TextSwitcherThemed.kt
@@ -0,0 +1,23 @@
+package ca.allanwang.kau.views
+
+import android.content.Context
+import android.util.AttributeSet
+import android.widget.TextSwitcher
+import android.widget.TextView
+
+/**
+ * Created by Allan Wang on 2017-06-21.
+ */
+class TextSwitcherThemed @JvmOverloads constructor(context: Context, attrs: AttributeSet? = null
+) : TextSwitcher(context, attrs) {
+
+    var textColor: Int = -1
+        get() = field
+        set(value) {
+            field = value
+            if (value != -1) {
+                (getChildAt(0) as TextView).setTextColor(value)
+                (getChildAt(1) as TextView).setTextColor(value)
+            }
+        }
+}
\ No newline at end of file