Migrate to Kotlin (#16)

README.md

@@ -80,6 +80,9 @@ openBrowser("https://swan.io", {
 });
 ```
 
+> [!IMPORTANT]
+> On Android, the Chrome app must be opened at least once for this to work — a step often overlooked when using emulators in development.
+
 ## Handle deeplinks
 
 In order to receive deeplink on browser close event, you have to setup them first. We **highly** recommand defining a custom schema + url for this specific task. For example, `com.company.myapp://close`.

android/build.gradle

@@ -7,6 +7,7 @@ buildscript {
         gradlePluginPortal()
     }
     dependencies {
+        classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:${safeExtGet("kotlinVersion", "1.8.0")}")
         classpath("com.android.tools.build:gradle:7.3.1")
     }
 }
@@ -16,14 +17,15 @@ def isNewArchitectureEnabled() {
 }
 
 apply plugin: "com.android.library"
+apply plugin: "kotlin-android"
 
 if (isNewArchitectureEnabled()) {
     apply plugin: "com.facebook.react"
 }
 
 android {
-    buildToolsVersion safeExtGet("buildToolsVersion", "33.0.0")
-    compileSdkVersion safeExtGet("compileSdkVersion", 33)
+    buildToolsVersion safeExtGet("buildToolsVersion", "34.0.0")
+    compileSdkVersion safeExtGet("compileSdkVersion", 34)
 
     if (project.android.hasProperty("namespace")) {
         namespace "io.swan.rnbrowser"
@@ -39,8 +41,8 @@ android {
     }
     defaultConfig {
         buildConfigField("boolean", "IS_NEW_ARCHITECTURE_ENABLED", isNewArchitectureEnabled().toString())
-        minSdkVersion safeExtGet("minSdkVersion", 21)
-        targetSdkVersion safeExtGet("targetSdkVersion", 33)
+        minSdkVersion safeExtGet("minSdkVersion", 23)
+        targetSdkVersion safeExtGet("targetSdkVersion", 34)
     }
     lintOptions {
         abortOnError false
@@ -68,5 +70,5 @@ repositories {
 dependencies {
     //noinspection GradleDynamicVersion
     implementation "com.facebook.react:react-native:+" // From node_modules
-    implementation "androidx.browser:browser:${safeExtGet("androidXBrowserVersion", "1.5.0")}"
+    implementation "androidx.browser:browser:${safeExtGet("androidXBrowserVersion", "1.8.0")}"
 }

android/src/main/java/io/swan/rnbrowser/RNSwanBrowserModuleImpl.kt

@@ -0,0 +1,105 @@
+package io.swan.rnbrowser
+
+import android.content.Intent
+import android.net.Uri
+
+import androidx.annotation.ColorInt
+import androidx.browser.customtabs.CustomTabColorSchemeParams
+import androidx.browser.customtabs.CustomTabsIntent
+import androidx.core.content.ContextCompat
+import androidx.core.graphics.ColorUtils
+
+import com.facebook.react.bridge.Promise
+import com.facebook.react.bridge.ReactApplicationContext
+import com.facebook.react.bridge.ReadableMap
+import com.facebook.react.modules.core.DeviceEventManagerModule.RCTDeviceEventEmitter
+
+import io.swan.rnbrowser.helpers.CustomTabActivityHelper
+
+object RNSwanBrowserModuleImpl {
+  const val NAME = "RNSwanBrowser"
+  private var browserVisible = false
+
+  internal fun onHostResume(reactContext: ReactApplicationContext) {
+    if (browserVisible && reactContext.hasActiveReactInstance()) {
+      browserVisible = false
+
+      reactContext
+        .getJSModule(RCTDeviceEventEmitter::class.java)
+        .emit("swanBrowserDidClose", null)
+    }
+  }
+
+  internal fun open(
+    reactContext: ReactApplicationContext,
+    url: String,
+    options: ReadableMap,
+    promise: Promise
+  ) {
+    if (browserVisible) {
+      return promise.reject(
+        "swan_browser_visible",
+        "An instance of the swan browser is already visible"
+      )
+    }
+
+    val activity = reactContext.currentActivity
+      ?: return promise.reject(
+        "no_current_activity",
+        "Couldn't call open() when the app is in background"
+      )
+
+    browserVisible = true
+
+    val intentBuilder = CustomTabsIntent.Builder().apply {
+      setBookmarksButtonEnabled(false)
+      setDownloadButtonEnabled(false)
+      setInstantAppsEnabled(false)
+      setSendToExternalDefaultHandlerEnabled(false)
+      setShowTitle(false)
+
+      if (options.getString("animationType") == "fade") {
+        setStartAnimations(activity, com.facebook.react.R.anim.catalyst_fade_in, R.anim.inert)
+        setExitAnimations(activity, R.anim.inert, com.facebook.react.R.anim.catalyst_fade_out)
+      } else {
+        setStartAnimations(activity, com.facebook.react.R.anim.catalyst_slide_up, R.anim.inert)
+        setExitAnimations(activity, R.anim.inert, com.facebook.react.R.anim.catalyst_slide_down)
+      }
+    }
+
+    @ColorInt val blackColor = ContextCompat.getColor(activity ,android.R.color.black)
+
+    val paramsBuilder = CustomTabColorSchemeParams.Builder().apply {
+      setNavigationBarColor(blackColor)
+
+      if (options.hasKey("barTintColor")) {
+        @ColorInt val barTintColor = options.getInt("barTintColor")
+
+        setToolbarColor(barTintColor)
+        setSecondaryToolbarColor(barTintColor)
+
+        intentBuilder.setColorScheme(
+          when (ColorUtils.calculateLuminance(barTintColor) > 0.5) {
+            true -> CustomTabsIntent.COLOR_SCHEME_LIGHT
+            false -> CustomTabsIntent.COLOR_SCHEME_DARK
+          }
+        )
+      }
+    }
+
+    intentBuilder.setDefaultColorSchemeParams(paramsBuilder.build())
+
+    val customTabsIntent = intentBuilder.build().apply {
+      intent.addFlags(Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS)
+      intent.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP)
+    }
+
+    CustomTabActivityHelper.openCustomTab(
+      activity, customTabsIntent, Uri.parse(url)
+    ) { currentActivity, uri ->
+      currentActivity.startActivity(Intent(Intent.ACTION_VIEW, uri))
+    }
+
+    promise.resolve(null)
+  }
+}

android/src/main/java/io/swan/rnbrowser/RNSwanBrowserPackage.kt

@@ -0,0 +1,37 @@
+package io.swan.rnbrowser
+
+import com.facebook.react.TurboReactPackage
+import com.facebook.react.bridge.NativeModule
+import com.facebook.react.bridge.ReactApplicationContext
+import com.facebook.react.module.model.ReactModuleInfo
+import com.facebook.react.module.model.ReactModuleInfoProvider
+
+class RNSwanBrowserPackage : TurboReactPackage() {
+
+  override fun getModule(name: String, reactContext: ReactApplicationContext): NativeModule? {
+    return when (name) {
+      RNSwanBrowserModuleImpl.NAME -> RNSwanBrowserModule(reactContext)
+      else -> null
+    }
+  }
+
+  override fun getReactModuleInfoProvider(): ReactModuleInfoProvider {
+    return ReactModuleInfoProvider {
+      val moduleInfos: MutableMap<String, ReactModuleInfo> = HashMap()
+      val isTurboModule = BuildConfig.IS_NEW_ARCHITECTURE_ENABLED
+
+      val moduleInfo = ReactModuleInfo(
+        RNSwanBrowserModuleImpl.NAME,
+        RNSwanBrowserModuleImpl.NAME,
+        false,
+        false,
+        true,
+        false,
+        isTurboModule
+      )
+
+      moduleInfos[RNSwanBrowserModuleImpl.NAME] = moduleInfo
+      moduleInfos
+    }
+  }
+}

android/src/main/java/io/swan/rnbrowser/helpers/CustomTabActivityHelper.java

@@ -1,4 +1,4 @@
-// https://github.com/GoogleChrome/android-browser-helper/blob/master/demos/custom-tabs-example-app/src/main/java/org/chromium/customtabsdemos/CustomTabActivityHelper.java
+// https://github.com/GoogleChrome/android-browser-helper/blob/main/demos/custom-tabs-example-app/src/main/java/org/chromium/customtabsdemos/CustomTabActivityHelper.java
 //
 // Copyright 2015 Google Inc. All Rights Reserved.
 //

android/src/main/java/io/swan/rnbrowser/helpers/CustomTabsHelper.java

@@ -1,4 +1,4 @@
-// https://github.com/GoogleChrome/android-browser-helper/blob/master/demos/custom-tabs-example-app/src/main/java/org/chromium/customtabsdemos/CustomTabsHelper.java
+// https://github.com/GoogleChrome/android-browser-helper/blob/main/demos/custom-tabs-example-app/src/main/java/org/chromium/customtabsdemos/CustomTabsHelper.java
 //
 // Copyright 2015 Google Inc. All Rights Reserved.
 //

android/src/main/java/io/swan/rnbrowser/helpers/ServiceConnection.java

@@ -1,4 +1,4 @@
-// https://github.com/GoogleChrome/android-browser-helper/blob/master/demos/custom-tabs-example-app/src/main/java/org/chromium/customtabsdemos/ServiceConnection.java
+// https://github.com/GoogleChrome/android-browser-helper/blob/main/demos/custom-tabs-example-app/src/main/java/org/chromium/customtabsdemos/ServiceConnection.java
 //
 // Copyright 2015 Google Inc. All Rights Reserved.
 //

android/src/main/java/io/swan/rnbrowser/helpers/ServiceConnectionCallback.java

@@ -1,4 +1,4 @@
-// https://github.com/GoogleChrome/android-browser-helper/blob/master/demos/custom-tabs-example-app/src/main/java/org/chromium/customtabsdemos/ServiceConnectionCallback.java
+// https://github.com/GoogleChrome/android-browser-helper/blob/main/demos/custom-tabs-example-app/src/main/java/org/chromium/customtabsdemos/ServiceConnectionCallback.java
 //
 // Copyright 2015 Google Inc. All Rights Reserved.
 //