misc (#97)

* Update translators

* Increase debounce test interval

* Clean unnecessary adapter files

* Update fastadapter

* Add fastadapter helper method

* Remove external method

* Add better wrap

* Add more helpers

10 files changed, 64 insertions, 130 deletions

diff --git a/README.md b/README.md
index 9e44c03..1a76238 100644
--- a/README.md
+++ b/README.md
@@ -156,8 +156,9 @@ Special thanks to the following awesome people for translating significant porti
 | Language | Contributors |
 |----------|--------------|
 | French | [Vincent Kulak](https://github.com/VonOx) • [Jean-Philippe Gravel](https://crowdin.com/profile/wokija) |
-| German | [Bushido1992](https://forum.xda-developers.com/member.php?u=5179246) • [msoehnchen](https://crowdin.com/profile/msoehnchen) • [3LD0mi HA](https://forum.xda-developers.com/member.php?u=5860523) |
+| German | [Bushido1992](https://forum.xda-developers.com/member.php?u=5179246) • [Marcel Soehnchen](https://crowdin.com/profile/msoehnchen) • [3LD0mi HA](https://forum.xda-developers.com/member.php?u=5860523) |
 | Korean | [잇스테이크](https://crowdin.com/profile/bexco2010) |
+| Italian | |
 | Spanish | [Jahir Fiquitiva](https://jahirfiquitiva.me/) • [Nefi Salazar](https://plus.google.com/u/0/105547968033551087431)|
 | Vietnamese | [Alienz](https://crowdin.com/profile/alienyd) |
 
diff --git a/adapter/src/main/kotlin/ca/allanwang/kau/adapters/AdapterUtils.kt b/adapter/src/main/kotlin/ca/allanwang/kau/adapters/AdapterUtils.kt
new file mode 100644
index 0000000..206c66b
--- /dev/null
+++ b/adapter/src/main/kotlin/ca/allanwang/kau/adapters/AdapterUtils.kt
@@ -0,0 +1,22 @@
+package ca.allanwang.kau.adapters
+
+import com.mikepenz.fastadapter.FastAdapter
+import com.mikepenz.fastadapter.IAdapter
+import com.mikepenz.fastadapter.IItem
+import com.mikepenz.fastadapter.commons.adapters.FastItemAdapter
+
+/**
+ * Created by Allan Wang on 2017-11-08.
+ */
+
+/**
+ * Add kotlin's generic syntax to better support out types
+ */
+fun <T : IItem<*, *>> fastAdapter(vararg adapter: IAdapter<out T>) =
+        FastAdapter.with<T, IAdapter<out T>>(adapter.toList())!!
+
+/**
+ * Helper to get an [IAdapter] directly from a [FastItemAdapter]
+ */
+fun <T : IItem<*, *>> fastAdapter(adapter: IAdapter<out T>, fastAdapter: FastItemAdapter<out T>) =
+        fastAdapter(adapter, fastAdapter.itemAdapter)
\ No newline at end of file
diff --git a/adapter/src/main/kotlin/ca/allanwang/kau/adapters/ChainedAdapters.kt b/adapter/src/main/kotlin/ca/allanwang/kau/adapters/ChainedAdapters.kt
deleted file mode 100644
index 2da0cac..0000000
--- a/adapter/src/main/kotlin/ca/allanwang/kau/adapters/ChainedAdapters.kt
+++ /dev/null
@@ -1,85 +0,0 @@
-package ca.allanwang.kau.adapters
-
-import android.support.v7.widget.LinearLayoutManager
-import android.support.v7.widget.RecyclerView
-import ca.allanwang.kau.utils.withLinearAdapter
-import com.mikepenz.fastadapter.IItem
-import com.mikepenz.fastadapter.adapters.HeaderAdapter
-import com.mikepenz.fastadapter.commons.adapters.FastItemAdapter
-import org.jetbrains.anko.collections.forEachReversedWithIndex
-import java.util.*
-
-/**
- * Created by Allan Wang on 2017-06-27.
- *
- * Once bounded to a [RecyclerView], this will
- * - Chain together a list of [HeaderAdapter]s, backed by a generic [FastItemAdapter]
- * - Add a [LinearLayoutManager] to the recycler
- * - Add a listener for when a new adapter segment is being used
- */
-class ChainedAdapters<T>(vararg items: Pair<T, SectionAdapter<*>>) {
-    private val chain: MutableList<Pair<T, SectionAdapter<*>>> = mutableListOf(*items)
-    val baseAdapter: FastItemAdapter<IItem<*, *>> = FastItemAdapter()
-    private val indexStack = Stack<Int>()
-    var recycler: RecyclerView? = null
-    val firstVisibleItemPosition: Int
-        get() = (recycler?.layoutManager as LinearLayoutManager?)?.findFirstVisibleItemPosition() ?: throw IllegalArgumentException("No recyclerview was bounded to the chain adapters")
-
-    fun add(vararg items: Pair<T, SectionAdapter<*>>) = add(items.toList())
-
-    fun add(items: Collection<Pair<T, SectionAdapter<*>>>): ChainedAdapters<T> {
-        if (recycler != null) throw IllegalAccessException("Chain adapter is already bounded to a recycler; cannot add directly.")
-        items.map { it.second }.forEachIndexed { index, sectionAdapter -> sectionAdapter.sectionOrder = chain.size + 1 + index }
-        chain.addAll(items)
-        return this
-    }
-
-    operator fun get(index: Int) = chain[index]
-
-    /**
-     * Attaches the chain to a recycler
-     * After this stage, any modifications to the adapters must be done through external references
-     * You may still get the generic header adapters through the get operator
-     * Binding the recycler also involves supplying a callback, which returns
-     * the item (T) associated with the adapter,
-     * the index (Int) of the current adapter
-     * and the dy (Int) as given by the scroll listener
-     */
-    fun bindRecyclerView(recyclerView: RecyclerView, onAdapterSectionChanged: (item: T, index: Int, dy: Int) -> Unit) {
-        if (recycler != null) throw IllegalStateException("Chain adapter is already bounded")
-        if (chain.isEmpty()) throw IllegalArgumentException("No adapters have been added to the adapters list")
-        //wrap adapters
-        chain.map { it.second }.forEachReversedWithIndex { i, headerAdapter ->
-            if (i == chain.size - 1) headerAdapter.wrap(baseAdapter)
-            else headerAdapter.wrap(chain[i + 1].second)
-        }
-        recycler = recyclerView
-        indexStack.push(0)
-        with(recyclerView) {
-            withLinearAdapter(chain.first().second)
-            addOnScrollListener(object : RecyclerView.OnScrollListener() {
-                override fun onScrolled(rv: RecyclerView, dx: Int, dy: Int) {
-                    super.onScrolled(rv, dx, dy)
-                    val topPosition = firstVisibleItemPosition
-                    val currentAdapterIndex = indexStack.peek()
-                    if (dy > 0) {
-                        //look ahead from current adapter
-                        val nextAdapterIndex = (currentAdapterIndex until chain.size).asSequence()
-                                .firstOrNull {
-                                    val adapter = chain[it].second
-                                    adapter.adapterItemCount > 0 && adapter.getGlobalPosition(adapter.adapterItemCount - 1) >= topPosition
-                                } ?: currentAdapterIndex
-                        if (nextAdapterIndex == currentAdapterIndex) return
-                        indexStack.push(nextAdapterIndex)
-                        onAdapterSectionChanged(chain[indexStack.peek()].first, indexStack.peek(), dy)
-                    } else if (currentAdapterIndex == 0) {
-                        return //All adapters may be empty; in this case, if we are already at the beginning, don't bother checking
-                    } else if (chain[currentAdapterIndex].second.getGlobalPosition(0) > topPosition) {
-                        indexStack.pop()
-                        onAdapterSectionChanged(chain[indexStack.peek()].first, indexStack.peek(), dy)
-                    }
-                }
-            })
-        }
-    }
-}
\ No newline at end of file
diff --git a/adapter/src/main/kotlin/ca/allanwang/kau/adapters/FastItemThemedAdapter.kt b/adapter/src/main/kotlin/ca/allanwang/kau/adapters/FastItemThemedAdapter.kt
index b1c281a..c3a1c61 100644
--- a/adapter/src/main/kotlin/ca/allanwang/kau/adapters/FastItemThemedAdapter.kt
+++ b/adapter/src/main/kotlin/ca/allanwang/kau/adapters/FastItemThemedAdapter.kt
@@ -8,9 +8,7 @@ import android.widget.ImageView
 import android.widget.TextView
 import ca.allanwang.kau.ui.createSimpleRippleDrawable
 import ca.allanwang.kau.utils.adjustAlpha
-import com.mikepenz.fastadapter.IExpandable
 import com.mikepenz.fastadapter.IItem
-import com.mikepenz.fastadapter.ISubItem
 import com.mikepenz.fastadapter.commons.adapters.FastItemAdapter
 
 /**
@@ -100,16 +98,11 @@ class FastItemThemedAdapter<Item : IItem<*, *>>(
         return super.setNewList(items)
     }
 
-    override fun <T, S> setSubItems(collapsible: T, subItems: List<S>?): T where S : IItem<*, *>?, T : IItem<*, *>?, T : IExpandable<T, S>?, S : ISubItem<Item, T>? {
-        injectTheme(subItems)
-        return super.setSubItems(collapsible, subItems)
-    }
-
-    internal fun injectTheme(items: Collection<IItem<*, *>?>?) {
+    private fun injectTheme(items: Collection<IItem<*, *>?>?) {
         items?.forEach { injectTheme(it) }
     }
 
-    internal fun injectTheme(item: IItem<*, *>?) {
+    protected fun injectTheme(item: IItem<*, *>?) {
         if (item is ThemableIItem && item.themeEnabled) {
             item.textColor = textColor
             item.backgroundColor = backgroundColor
diff --git a/adapter/src/main/kotlin/ca/allanwang/kau/adapters/SectionAdapter.kt b/adapter/src/main/kotlin/ca/allanwang/kau/adapters/SectionAdapter.kt
deleted file mode 100644
index cf7205a..0000000
--- a/adapter/src/main/kotlin/ca/allanwang/kau/adapters/SectionAdapter.kt
+++ /dev/null
@@ -1,13 +0,0 @@
-package ca.allanwang.kau.adapters
-
-import com.mikepenz.fastadapter.IItem
-import com.mikepenz.fastadapter.adapters.HeaderAdapter
-
-/**
- * Created by Allan Wang on 2017-06-27.
- *
- * Extension of [HeaderAdapter] where we can define the order
- */
-class SectionAdapter<Item : IItem<*, *>>(var sectionOrder: Int = 100) : HeaderAdapter<Item>() {
-    override fun getOrder(): Int = sectionOrder
-}
\ No newline at end of file
diff --git a/core/src/test/kotlin/ca/allanwang/kau/kotlin/DebounceTest.kt b/core/src/test/kotlin/ca/allanwang/kau/kotlin/DebounceTest.kt
index 05345bd..8ccdab3 100644
--- a/core/src/test/kotlin/ca/allanwang/kau/kotlin/DebounceTest.kt
+++ b/core/src/test/kotlin/ca/allanwang/kau/kotlin/DebounceTest.kt
@@ -34,18 +34,18 @@ class DebounceTest {
     @Test
     fun multipleDebounces() {
         var i = 0
-        val debounce = debounce<Int>(10) { i += it }
+        val debounce = debounce<Int>(20) { i += it }
         debounce(1) //ignore -> i = 0
-        Thread.sleep(5)
+        Thread.sleep(10)
         assertEquals(0, i)
         debounce(2) //accept -> i = 2
-        Thread.sleep(15)
+        Thread.sleep(30)
         assertEquals(2, i)
         debounce(4) //ignore -> i = 2
-        Thread.sleep(5)
+        Thread.sleep(10)
         assertEquals(2, i)
         debounce(8) //accept -> i = 10
-        Thread.sleep(15)
+        Thread.sleep(30)
         assertEquals(10, i)
     }
 
diff --git a/docs/Changelog.md b/docs/Changelog.md
index f13f21b..45b8e12 100644
--- a/docs/Changelog.md
+++ b/docs/Changelog.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## v3.5.0
+* Update dependencies, many of which with major version increments
+* Add Vietnamese translations
+* Add Italian translations
+* Clean up unnecessary build version support
+* Optimize and refactor old code
+* Add helper methods to enhance FastAdapter for Kotlin
+
 ## v3.4.5
 * Add French translations
 * Add Spanish translations
diff --git a/gradle.properties b/gradle.properties
index 3003784..4f368a8 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -23,19 +23,19 @@ TARGET_SDK=26
 BUILD_TOOLS=26.0.2
 ANDROID_SUPPORT_LIBS=27.0.0
 
-VERSION_NAME=3.4.4.1
+VERSION_NAME=3.5.0.0
 
 KOTLIN=1.1.51
-ABOUT_LIBRARIES=5.9.7
-ANKO=0.10.1
+ABOUT_LIBRARIES=6.0.0
+ANKO=0.10.2
 BLURRY=2.1.1
 CONSTRAINT_LAYOUT=1.1.0-beta3
-FAST_ADAPTER=2.6.3
-FAST_ADAPTER_COMMONS=2.6.3
-GLIDE=4.2.0
-ICONICS=2.9.3
-IICON_GOOGLE=3.0.1.1
-MATERIAL_DIALOG=0.9.4.7
+FAST_ADAPTER=3.0.1
+FAST_ADAPTER_COMMONS=3.0.1
+GLIDE=4.3.1
+ICONICS=2.9.5
+IICON_GOOGLE=3.0.1.2
+MATERIAL_DIALOG=0.9.5.0
 
 ESPRESSO=3.0.0
 JUNIT=4.12
diff --git a/mediapicker/src/main/kotlin/ca/allanwang/kau/mediapicker/MediaPickerCore.kt b/mediapicker/src/main/kotlin/ca/allanwang/kau/mediapicker/MediaPickerCore.kt
index ec5d2f0..9bab4c4 100644
--- a/mediapicker/src/main/kotlin/ca/allanwang/kau/mediapicker/MediaPickerCore.kt
+++ b/mediapicker/src/main/kotlin/ca/allanwang/kau/mediapicker/MediaPickerCore.kt
@@ -18,6 +18,7 @@ import android.support.v4.content.CursorLoader
 import android.support.v4.content.Loader
 import android.support.v7.widget.GridLayoutManager
 import android.support.v7.widget.RecyclerView
+import ca.allanwang.kau.adapters.fastAdapter
 import ca.allanwang.kau.animators.FadeScaleAnimatorAdd
 import ca.allanwang.kau.animators.KauAnimator
 import ca.allanwang.kau.internal.KauBaseActivity
@@ -29,7 +30,7 @@ import ca.allanwang.kau.utils.toast
 import com.bumptech.glide.Glide
 import com.bumptech.glide.RequestManager
 import com.mikepenz.fastadapter.IItem
-import com.mikepenz.fastadapter.adapters.HeaderAdapter
+import com.mikepenz.fastadapter.adapters.ItemAdapter
 import com.mikepenz.fastadapter.commons.adapters.FastItemAdapter
 import com.mikepenz.google_material_typeface_library.GoogleMaterial
 import com.mikepenz.iconics.IconicsDrawable
@@ -108,7 +109,7 @@ abstract class MediaPickerCore<T : IItem<*, *>>(
     private var hasPreloaded = false
     private var prefetcher: Future<*>? = null
 
-    val adapter: FastItemAdapter<T> = FastItemAdapter()
+    val adapter = FastItemAdapter<T>()
 
     /**
      * Further improve preloading by extending the layout space
@@ -121,9 +122,9 @@ abstract class MediaPickerCore<T : IItem<*, *>>(
     }
 
     fun initializeRecycler(recycler: RecyclerView) {
-        val adapterWrapper = HeaderAdapter<MediaActionItem>()
-        adapterWrapper.wrap(adapter)
-        adapterWrapper.add(mediaActions.map { MediaActionItem(it, mediaType) })
+        val adapterHeader = ItemAdapter<MediaActionItem>()
+        val fulladapter = fastAdapter(adapterHeader, adapter)
+        adapterHeader.add(mediaActions.map { MediaActionItem(it, mediaType) })
         recycler.apply {
             val manager = object : GridLayoutManager(context, computeColumnCount(context)) {
                 override fun getExtraLayoutSpace(state: RecyclerView.State?): Int {
@@ -133,7 +134,7 @@ abstract class MediaPickerCore<T : IItem<*, *>>(
             setItemViewCacheSize(CACHE_SIZE)
             isDrawingCacheEnabled = true
             layoutManager = manager
-            adapter = adapterWrapper
+            adapter = fulladapter
             setHasFixedSize(true)
             itemAnimator = KauAnimator(FadeScaleAnimatorAdd(0.8f))
         }
diff --git a/sample/src/main/res/xml/kau_changelog.xml b/sample/src/main/res/xml/kau_changelog.xml
index b964cb6..4718e09 100644
--- a/sample/src/main/res/xml/kau_changelog.xml
+++ b/sample/src/main/res/xml/kau_changelog.xml
@@ -6,13 +6,20 @@
     <item text="" />
     -->
 	
+	<version title="v3.5.0" />
+    <item text="Update dependencies, many of which with major version increments" />
+    <item text="Add Vietnamese translations" />
+    <item text="Add Italian translations" />
+    <item text="Clean up unnecessary build version support" />
+    <item text="Optimize and refactor old code" />
+    <item text="Add helper methods to enhance FastAdapter for Kotlin" />
+    <item text="" />
+	
 	<version title="v3.4.5" />
     <item text="Add French translations" />
     <item text="Add Spanish translations" />
     <item text="Add German translations" />
     <item text="Remove unnecessary strings" />
-    <item text="" />
-    <item text="" />
 
     <version title="v3.4.4" />
     <item text="Add translation support for crowdin" />