Feature/issue550 add equalable content provider

feature/session/src/main/java/io/github/droidkaigi/confsched2019/session/ui/item/EqualableContentsProvider.kt

@@ -0,0 +1,27 @@
+package io.github.droidkaigi.confsched2019.session.ui.item
+
+import java.util.Arrays
+
+interface EqualableContentsProvider {
+    fun providerEqualableContents(): Array<*>
+
+    override fun equals(other: Any?): Boolean
+
+    override fun hashCode(): Int
+
+    fun isTextHighlightNeedUpdate(): Boolean {
+        return false
+    }
+
+    fun isSameContents(other: Any?): Boolean {
+        other ?: return false
+        if (other !is EqualableContentsProvider) return false
+        if (other::class != this::class) return false
+        if (isTextHighlightNeedUpdate()) return false
+        return other.providerEqualableContents().contentDeepEquals(this.providerEqualableContents())
+    }
+
+    fun contentsHash(): Int {
+        return Arrays.deepHashCode(arrayOf(this::class, this.providerEqualableContents()))
+    }
+}

feature/session/src/main/java/io/github/droidkaigi/confsched2019/session/ui/item/ServiceSessionItem.kt

@@ -19,7 +19,7 @@ class ServiceSessionItem @AssistedInject constructor(
     val sessionContentsActionCreator: SessionContentsActionCreator
 ) : BindableItem<ItemServiceSessionBinding>(
     session.id.hashCode().toLong()
-), SessionItem {
+), SessionItem, EqualableContentsProvider {
     val serviceSession get() = session
 
     @AssistedInject.Factory
@@ -63,18 +63,13 @@ class ServiceSessionItem @AssistedInject constructor(
 
     override fun getLayout(): Int = R.layout.item_service_session
 
-    override fun equals(other: Any?): Boolean {
-        if (this === other) return true
-        if (javaClass != other?.javaClass) return false
-
-        other as ServiceSessionItem
+    override fun providerEqualableContents(): Array<*> = arrayOf(session)
 
-        if (session != other.session) return false
-
-        return true
+    override fun equals(other: Any?): Boolean {
+        return isSameContents(other)
     }
 
     override fun hashCode(): Int {
-        return session.hashCode()
+        return contentsHash()
     }
 }

feature/session/src/main/java/io/github/droidkaigi/confsched2019/session/ui/item/SpeakerItem.kt

@@ -18,7 +18,8 @@ class SpeakerItem @AssistedInject constructor(
     @Assisted val clickNavDirection: NavDirections,
     @Assisted val query: String?,
     val navController: NavController
-) : BindableItem<ItemSpeakerBinding>(speaker.id.hashCode().toLong()) {
+) : BindableItem<ItemSpeakerBinding>(speaker.id.hashCode().toLong()),
+    EqualableContentsProvider {
     @AssistedInject.Factory
     interface Factory {
         fun create(
@@ -64,19 +65,17 @@ class SpeakerItem @AssistedInject constructor(
         }
     }
 
-    override fun equals(other: Any?): Boolean {
-        if (this === other) return true
-        if (javaClass != other?.javaClass) return false
-
-        other as SpeakerItem
+    override fun providerEqualableContents(): Array<*> = arrayOf(speaker)
 
-        if (speaker != other.speaker) return false
-        if (query != other.query) return false
+    override fun isTextHighlightNeedUpdate() = query?.let {
+        speaker.name.toLowerCase().contains(it.toLowerCase().toRegex())
+    } ?: false
 
-        return true
+    override fun equals(other: Any?): Boolean {
+        return isSameContents(other)
     }
 
     override fun hashCode(): Int {
-        return speaker.hashCode() + query.hashCode()
+        return contentsHash()
     }
 }

feature/session/src/main/java/io/github/droidkaigi/confsched2019/session/ui/item/SpeechSessionItem.kt

@@ -40,7 +40,7 @@ class SpeechSessionItem @AssistedInject constructor(
     val sessionContentsActionCreator: SessionContentsActionCreator
 ) : BindableItem<ItemSessionBinding>(
     session.id.hashCode().toLong()
-), SessionItem {
+), SessionItem, EqualableContentsProvider {
     val speechSession get() = session
 
     @AssistedInject.Factory
@@ -199,19 +199,24 @@ class SpeechSessionItem @AssistedInject constructor(
 
     override fun getLayout(): Int = R.layout.item_session
 
-    override fun equals(other: Any?): Boolean {
-        if (this === other) return true
-        if (javaClass != other?.javaClass) return false
-
-        other as SpeechSessionItem
+    override fun providerEqualableContents(): Array<*> = arrayOf(session)
 
-        if (session != other.session) return false
-        if (query == null || other.query == null || query != other.query) return false
+    override fun isTextHighlightNeedUpdate() = query?.let {
+        when {
+            session.title.getByLang(defaultLang()).toLowerCase()
+                .contains(query.toLowerCase().toRegex()) -> true
+            session.speakers.find {
+                it.name.toLowerCase().contains(query.toLowerCase().toRegex())
+            } != null -> true
+            else -> false
+        }
+    } ?: false
 
-        return true
+    override fun equals(other: Any?): Boolean {
+        return isSameContents(other)
     }
 
     override fun hashCode(): Int {
-        return session.hashCode() + query.hashCode()
+        return contentsHash()
     }
 }

feature/session/src/main/java/io/github/droidkaigi/confsched2019/session/ui/item/TabularServiceSessionItem.kt

@@ -17,7 +17,7 @@ class TabularServiceSessionItem @AssistedInject constructor(
     private val navController: NavController
 ) : BindableItem<ItemTabularServiceSessionBinding>(
     session.id.hashCode().toLong()
-), SessionItem {
+), SessionItem, EqualableContentsProvider {
 
     @AssistedInject.Factory
     interface Factory {
@@ -46,18 +46,13 @@ class TabularServiceSessionItem @AssistedInject constructor(
 
     override fun getLayout() = R.layout.item_tabular_service_session
 
-    override fun equals(other: Any?): Boolean {
-        if (this === other) return true
-        if (javaClass != other?.javaClass) return false
-
-        other as TabularServiceSessionItem
+    override fun providerEqualableContents(): Array<*> = arrayOf(session)
 
-        if (session != other.session) return false
-
-        return true
+    override fun equals(other: Any?): Boolean {
+        return isSameContents(other)
     }
 
     override fun hashCode(): Int {
-        return session.hashCode()
+        return contentsHash()
     }
 }

feature/session/src/main/java/io/github/droidkaigi/confsched2019/session/ui/item/TabularSpeechSessionItem.kt

@@ -26,7 +26,7 @@ class TabularSpeechSessionItem @AssistedInject constructor(
     private val navController: NavController
 ) : BindableItem<ItemTabularSpeechSessionBinding>(
     session.id.hashCode().toLong()
-), SessionItem {
+), SessionItem, EqualableContentsProvider {
 
     @AssistedInject.Factory
     interface Factory {
@@ -82,19 +82,14 @@ class TabularSpeechSessionItem @AssistedInject constructor(
 
     override fun getLayout() = R.layout.item_tabular_speech_session
 
-    override fun equals(other: Any?): Boolean {
-        if (this === other) return true
-        if (javaClass != other?.javaClass) return false
-
-        other as TabularSpeechSessionItem
+    override fun providerEqualableContents(): Array<*> = arrayOf(session)
 
-        if (session != other.session) return false
-
-        return true
+    override fun equals(other: Any?): Boolean {
+        return isSameContents(other)
     }
 
     override fun hashCode(): Int {
-        return session.hashCode()
+        return contentsHash()
     }
 
     private class SpeakerIconItem(