Properly align searchView clicks

1 files changed, 63 insertions, 50 deletions

diff --git a/library/src/main/kotlin/ca/allanwang/kau/searchview/SearchView.kt b/library/src/main/kotlin/ca/allanwang/kau/searchview/SearchView.kt
index 8ffc871..4449fe5 100644
--- a/library/src/main/kotlin/ca/allanwang/kau/searchview/SearchView.kt
+++ b/library/src/main/kotlin/ca/allanwang/kau/searchview/SearchView.kt
@@ -8,10 +8,7 @@ import android.support.v7.widget.CardView
 import android.support.v7.widget.LinearLayoutManager
 import android.support.v7.widget.RecyclerView
 import android.util.AttributeSet
-import android.view.Menu
-import android.view.MenuItem
-import android.view.View
-import android.view.ViewGroup
+import android.view.*
 import android.widget.FrameLayout
 import android.widget.ImageView
 import android.widget.ProgressBar
@@ -22,6 +19,7 @@ import com.mikepenz.fastadapter.commons.adapters.FastItemAdapter
 import com.mikepenz.google_material_typeface_library.GoogleMaterial
 import com.mikepenz.iconics.typeface.IIcon
 
+
 /**
  * Created by Allan Wang on 2017-06-23.
  */
@@ -29,19 +27,9 @@ class SearchView @JvmOverloads constructor(
         context: Context, attrs: AttributeSet? = null, defStyleAttr: Int = 0
 ) : FrameLayout(context, attrs, defStyleAttr) {
 
-    companion object {
-        fun bind(parent: ViewGroup, menu: Menu, @IdRes id: Int, config: Configs.() -> Unit = {}) {
-            SearchView(parent.context).apply {
-                layoutParams = FrameLayout.LayoutParams(FrameLayout.LayoutParams.MATCH_PARENT, FrameLayout.LayoutParams.MATCH_PARENT)
-                parent.addView(this)
-                this.bind(parent, menu, id, config)
-            }
-        }
-    }
-
     //configs
     inner class Configs {
-        var foregroundColor: Int = 0xddffffff.toInt()
+        var foregroundColor: Int = 0xdd000000.toInt()
             set(value) {
                 if (field == value) return
                 field = value
@@ -56,51 +44,52 @@ class SearchView @JvmOverloads constructor(
         var navIcon: IIcon? = GoogleMaterial.Icon.gmd_arrow_back
             set(value) {
                 field = value
-                iconNav.setIcon(value)
+                iconNav.setSearchIcon(value)
                 if (value == null) iconNav.gone()
             }
         var micIcon: IIcon? = GoogleMaterial.Icon.gmd_mic
             set(value) {
                 field = value
-                iconMic.setIcon(value)
+                iconMic.setSearchIcon(value)
                 if (value == null) iconMic.gone()
             }
         var clearIcon: IIcon? = GoogleMaterial.Icon.gmd_clear
             set(value) {
                 field = value
-                iconClear.setIcon(value)
+                iconClear.setSearchIcon(value)
                 if (value == null) iconClear.gone()
             }
         var revealDuration: Long = 300L
         var shouldClearOnOpen: Boolean = true
-        var openListener: (() -> Unit)? = null
-        var closeListener: (() -> Unit)? = null
+        var openListener: ((searchView: SearchView) -> Unit)? = null
+        var closeListener: ((searchView: SearchView) -> Unit)? = null
     }
 
     val configs = Configs()
     //views
-    private val shadow: View by bindView(R.id.search_shadow)
-    private val card: CardView by bindView(R.id.search_cardview)
-    private val iconNav: ImageView by bindView(R.id.search_nav)
-    private val editText: AppCompatEditText by bindView(R.id.search_edit_text)
-    private val progress: ProgressBar by bindView(R.id.search_progress)
-    private val iconMic: ImageView by bindView(R.id.search_mic)
-    private val iconClear: ImageView by bindView(R.id.search_clear)
-    private val recycler: RecyclerView by bindView(R.id.search_recycler)
-    private val adapter = FastItemAdapter<SearchItem>()
-    private lateinit var parent: ViewGroup
+    val shadow: View by bindView(R.id.search_shadow)
+    val card: CardView by bindView(R.id.search_cardview)
+    val iconNav: ImageView by bindView(R.id.search_nav)
+    val editText: AppCompatEditText by bindView(R.id.search_edit_text)
+    val progress: ProgressBar by bindView(R.id.search_progress)
+    val iconMic: ImageView by bindView(R.id.search_mic)
+    val iconClear: ImageView by bindView(R.id.search_clear)
+    val recycler: RecyclerView by bindView(R.id.search_recycler)
+    val adapter = FastItemAdapter<SearchItem>()
+    lateinit var parent: ViewGroup
     val isOpen: Boolean
         get() = card.isVisible()
 
     //menu view
-    private var revealX: Int = -1
-    private var revealY: Int = -1
+    var menuX: Int = -1
+    var menuY: Int = -1
+    var menuHalfHeight: Int = -1
 
     init {
         View.inflate(context, R.layout.kau_search_view, this)
-        iconNav.setIcon(configs.navIcon)
-        iconMic.setIcon(configs.micIcon)
-        iconClear.setIcon(configs.clearIcon)
+        iconNav.setSearchIcon(configs.navIcon)
+        iconMic.setSearchIcon(configs.micIcon)
+        iconClear.setSearchIcon(configs.clearIcon)
         tintForeground(configs.foregroundColor)
         tintBackground(configs.backgroundColor)
         with(recycler) {
@@ -115,15 +104,15 @@ class SearchView @JvmOverloads constructor(
         }
     }
 
-    internal fun ImageView.setSearchIcon(iicon: IIcon) {
-        setIcon(iicon, sizeDp = 20, color = configs.foregroundColor)
+    internal fun ImageView.setSearchIcon(iicon: IIcon?) {
+        setIcon(iicon, sizeDp = 18, color = configs.foregroundColor)
     }
 
     fun config(config: Configs.() -> Unit) {
         configs.config()
     }
 
-    fun bind(parent: ViewGroup, menu: Menu, @IdRes id: Int, config: Configs.() -> Unit = {}) {
+    fun bind(parent: ViewGroup, menu: Menu, @IdRes id: Int, config: Configs.() -> Unit = {}): SearchView {
         config(config)
         this.parent = parent
         val item = menu.findItem(id)
@@ -131,19 +120,30 @@ class SearchView @JvmOverloads constructor(
         card.gone()
         item.setOnMenuItemClickListener { configureCoords(it); revealOpen(); true }
         shadow.setOnClickListener { revealClose() }
+        return this
     }
 
     fun configureCoords(item: MenuItem) {
         val view = parent.findViewById<View>(item.itemId) ?: return
         val locations = IntArray(2)
         view.getLocationOnScreen(locations)
-        revealX = (locations[0] + view.width / 2)
-        revealY = (locations[1] + view.height / 2)
-        val topAlignment = revealY - card.height / 2
-        val params = (card.layoutParams as MarginLayoutParams).apply {
-            topMargin = topAlignment
-        }
-        card.layoutParams = params
+        menuX = (locations[0] + view.width / 2)
+        menuHalfHeight = view.height / 2
+        menuY = (locations[1] + menuHalfHeight)
+        card.viewTreeObserver.addOnPreDrawListener(object : ViewTreeObserver.OnPreDrawListener {
+            override fun onPreDraw(): Boolean {
+                view.viewTreeObserver.removeOnPreDrawListener(this)
+                with(card) {
+                    KL.e("S $width $measuredWidth $height $measuredHeight")
+                }
+                val topAlignment = menuY - card.height / 2
+                val params = (card.layoutParams as MarginLayoutParams).apply {
+                    topMargin = topAlignment
+                }
+                card.layoutParams = params
+                return false
+            }
+        })
     }
 
     fun tintForeground(@ColorInt color: Int) {
@@ -159,9 +159,14 @@ class SearchView @JvmOverloads constructor(
 
     fun revealOpen() {
         if (isOpen) return
-        card.circularReveal(revealX, revealY, duration = configs.revealDuration,
+        /**
+         * The y component is relative to the cardView, but it hasn't been drawn yet so its own height is 0
+         * We therefore use half the menuItem height, which is a close approximation to our intended value
+         * The cardView matches the parent's width, so menuX is correct
+         */
+        card.circularReveal(menuX, menuHalfHeight, duration = configs.revealDuration,
                 onStart = {
-                    configs.openListener?.invoke()
+                    configs.openListener?.invoke(this)
                     if (configs.shouldClearOnOpen) editText.text.clear()
                 },
                 onFinish = {
@@ -173,10 +178,18 @@ class SearchView @JvmOverloads constructor(
     fun revealClose() {
         if (!isOpen) return
         shadow.fadeOut() {
-            card.circularHide(revealX, revealY, duration = configs.revealDuration,
+            card.circularHide(menuX, menuHalfHeight, duration = configs.revealDuration,
                     onFinish = {
-                        configs.closeListener?.invoke()
+                        configs.closeListener?.invoke(this)
                     })
         }
     }
-}
\ No newline at end of file
+}
+
+fun ViewGroup.bindSearchView(menu: Menu, @IdRes id: Int, config: SearchView.Configs.() -> Unit = {}): SearchView {
+    val searchView = SearchView(context)
+    searchView.layoutParams = FrameLayout.LayoutParams(FrameLayout.LayoutParams.MATCH_PARENT, FrameLayout.LayoutParams.MATCH_PARENT)
+    addView(searchView)
+    searchView.bind(this, menu, id, config)
+    return searchView
+}