From b692803ceae6ffbe4f2d8c8d591471c115e72bd7 Mon Sep 17 00:00:00 2001
From: Avently <7953703+avently@users.noreply.github.com>
Date: Thu, 6 Oct 2022 01:49:35 +0300
Subject: [PATCH] Experiments

---
 apps/android/app/build.gradle                 |  4 +-
 .../java/chat/simplex/app/MainActivity.kt     | 14 ++--
 .../app/views/helpers/AnimationUtils.kt       | 83 +++++++++++++++++++
 3 files changed, 92 insertions(+), 9 deletions(-)

diff --git a/apps/android/app/build.gradle b/apps/android/app/build.gradle
index 78fd7e7ce6..3a31f768d6 100644
--- a/apps/android/app/build.gradle
+++ b/apps/android/app/build.gradle
@@ -5,7 +5,7 @@ plugins {
 }
 
 android {
-    compileSdk 32
+    compileSdk 33
 
     defaultConfig {
         applicationId "chat.simplex.app"
@@ -113,6 +113,8 @@ dependencies {
     //Camera Permission
     implementation "com.google.accompanist:accompanist-permissions:0.23.0"
 
+    implementation "com.google.accompanist:accompanist-navigation-animation:0.26.4-beta"
+
     // Link Previews
     implementation 'org.jsoup:jsoup:1.13.1'
 
diff --git a/apps/android/app/src/main/java/chat/simplex/app/MainActivity.kt b/apps/android/app/src/main/java/chat/simplex/app/MainActivity.kt
index a23590f408..d5e9ce5931 100644
--- a/apps/android/app/src/main/java/chat/simplex/app/MainActivity.kt
+++ b/apps/android/app/src/main/java/chat/simplex/app/MainActivity.kt
@@ -29,7 +29,6 @@ import chat.simplex.app.ui.theme.SimpleXTheme
 import chat.simplex.app.views.SplashView
 import chat.simplex.app.views.call.ActiveCallView
 import chat.simplex.app.views.call.IncomingCallAlertView
-import chat.simplex.app.views.chat.ChatView
 import chat.simplex.app.views.chatlist.*
 import chat.simplex.app.views.database.DatabaseErrorView
 import chat.simplex.app.views.helpers.*
@@ -327,13 +326,12 @@ fun MainPage(
           else {
             showAdvertiseLAAlert = true
             val stopped = chatModel.chatRunning.value == false
-            AnimateScreensNullable(chatModel.chatId) { currentChatId ->
-              if (currentChatId == null) {
-                if (chatModel.sharedContent.value == null)
-                  ChatListView(chatModel, setPerformLA, stopped)
-                else
-                  ShareListView(chatModel, stopped)
-              } else ChatView(currentChatId, chatModel)
+            val nav = ExperimentalAnimationNav(chatModel, setPerformLA, stopped)
+            val currentChatId = chatModel.chatId.value
+            LaunchedEffect(currentChatId) {
+              if (currentChatId == null && nav.backQueue.size == 2) nav.navigate("LEFT")
+              else if (currentChatId == null) nav.popBackStack()
+              else nav.navigate("RIGHT")
             }
           }
         }
diff --git a/apps/android/app/src/main/java/chat/simplex/app/views/helpers/AnimationUtils.kt b/apps/android/app/src/main/java/chat/simplex/app/views/helpers/AnimationUtils.kt
index 12408ccc3d..8c9fbfef24 100644
--- a/apps/android/app/src/main/java/chat/simplex/app/views/helpers/AnimationUtils.kt
+++ b/apps/android/app/src/main/java/chat/simplex/app/views/helpers/AnimationUtils.kt
@@ -5,6 +5,12 @@ import androidx.compose.animation.core.FastOutSlowInEasing
 import androidx.compose.animation.core.tween
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.MutableState
+import androidx.navigation.NavHostController
+import chat.simplex.app.model.ChatModel
+import chat.simplex.app.views.chat.ChatView
+import chat.simplex.app.views.chatlist.ChatListView
+import chat.simplex.app.views.chatlist.ShareListView
+import com.google.accompanist.navigation.animation.*
 
 @OptIn(ExperimentalAnimationApi::class)
 @Composable
@@ -42,6 +48,83 @@ fun <S> AnimateScreensNullable(
   )
 }
 
+@OptIn(ExperimentalAnimationApi::class)
+@Composable
+fun ExperimentalAnimationNav(chatModel: ChatModel, setPerformLA: (Boolean) -> Unit, stopped: Boolean, ): NavHostController {
+  val navController = rememberAnimatedNavController()
+  AnimatedNavHost(navController, startDestination = "LEFT") {
+    composable(
+      "LEFT",
+      enterTransition = {
+        when (initialState.destination.route) {
+          "RIGHT" ->
+            slideIntoContainer(AnimatedContentScope.SlideDirection.Left, animationSpec = tween(700))
+          else -> null
+        }
+      },
+      exitTransition = {
+        when (targetState.destination.route) {
+          "RIGHT" ->
+            slideOutOfContainer(AnimatedContentScope.SlideDirection.Left, animationSpec = tween(700))
+          else -> null
+        }
+      },
+      popEnterTransition = {
+        when (initialState.destination.route) {
+          "RIGHT" ->
+            slideIntoContainer(AnimatedContentScope.SlideDirection.Right, animationSpec = tween(700))
+          else -> null
+        }
+      },
+      popExitTransition = {
+        when (targetState.destination.route) {
+          "RIGHT" ->
+            slideOutOfContainer(AnimatedContentScope.SlideDirection.Right, animationSpec = tween(700))
+          else -> null
+        }
+      }
+    ) {
+      if (chatModel.sharedContent.value == null)
+        ChatListView(chatModel, setPerformLA, stopped)
+      else
+        ShareListView(chatModel, stopped)
+    }
+    composable(
+      "RIGHT",
+      enterTransition = {
+        when (initialState.destination.route) {
+          "LEFT" ->
+            slideIntoContainer(AnimatedContentScope.SlideDirection.Left, animationSpec = tween(700))
+          else -> null
+        }
+      },
+      exitTransition = {
+        when (targetState.destination.route) {
+          "LEFT" ->
+            slideOutOfContainer(AnimatedContentScope.SlideDirection.Left, animationSpec = tween(700))
+          else -> null
+        }
+      },
+      popEnterTransition = {
+        when (initialState.destination.route) {
+          "LEFT" ->
+            slideIntoContainer(AnimatedContentScope.SlideDirection.Right, animationSpec = tween(700))
+          else -> null
+        }
+      },
+      popExitTransition = {
+        when (targetState.destination.route) {
+          "LEFT" ->
+            slideOutOfContainer(AnimatedContentScope.SlideDirection.Right, animationSpec = tween(700))
+          else -> null
+        }
+      }
+    ) { ChatView("@2", chatModel) }
+  }
+
+  return navController
+}
+
 @OptIn(ExperimentalAnimationApi::class)
 private fun fromStartToEndTransition() =
   slideInHorizontally(