Add showing snackbar in repo detail

app/src/androidTest/java/com/jraska/github/client/DeepLinkLaunchTest.kt

@@ -3,8 +3,10 @@ package com.jraska.github.client
 import android.content.Intent
 import android.net.Uri
 import androidx.test.espresso.Espresso.onView
+import androidx.test.espresso.action.ViewActions.click
 import androidx.test.espresso.assertion.ViewAssertions.matches
 import androidx.test.espresso.matcher.ViewMatchers.isDisplayed
+import androidx.test.espresso.matcher.ViewMatchers.withId
 import androidx.test.espresso.matcher.ViewMatchers.withText
 import androidx.test.platform.app.InstrumentationRegistry
 import com.jraska.github.client.http.ReplayHttpComponent
@@ -41,6 +43,10 @@ class DeepLinkLaunchTest {
 
     onView(withText(Matchers.containsString("Language: Java")))
       .check(matches(isDisplayed()))
+
+    onView(withId(R.id.repo_detail_github_fab)).perform(click())
+    onView(withText("Open"))
+      .check(matches(isDisplayed()))
   }
 
   companion object {

core-android/src/main/java/com/jraska/github/client/core/android/snackbar/SnackbarDisplay.kt

@@ -0,0 +1,13 @@
+package com.jraska.github.client.core.android.snackbar
+
+import android.view.View
+
+interface SnackbarDisplay {
+  fun showSnackbar(snackbarData: SnackbarData)
+}
+
+class SnackbarData(
+  val text: Int,
+  val length: Int,
+  val action: Pair<Int, View.OnClickListener?>? = null
+)

feature/users/src/main/java/com/jraska/github/client/users/UsersModule.kt

@@ -3,12 +3,14 @@ package com.jraska.github.client.users
 import android.app.Activity
 import androidx.lifecycle.ViewModel
 import com.jraska.github.client.core.android.LinkLauncher
+import com.jraska.github.client.core.android.snackbar.SnackbarDisplay
 import com.jraska.github.client.users.model.GitHubApiUsersRepository
 import com.jraska.github.client.users.model.GitHubUserDetailApi
 import com.jraska.github.client.users.model.GitHubUsersApi
 import com.jraska.github.client.users.model.RepoDetailViewModel
 import com.jraska.github.client.users.model.UsersRepository
 import com.jraska.github.client.users.ui.UsersActivity
+import com.jraska.github.client.users.widget.TopSnackbarDisplay
 import dagger.Module
 import dagger.Provides
 import dagger.multibindings.ClassKey
@@ -75,4 +77,7 @@ object UsersModule {
       }
     }
   }
+
+  @Provides
+  fun snackbarDisplay(display: TopSnackbarDisplay): SnackbarDisplay = display
 }

feature/users/src/main/java/com/jraska/github/client/users/model/RepoDetailViewModel.kt

@@ -1,21 +1,27 @@
 package com.jraska.github.client.users.model
 
+import android.view.View
 import androidx.lifecycle.LiveData
 import androidx.lifecycle.ViewModel
+import com.google.android.material.snackbar.Snackbar
 import com.jraska.github.client.analytics.AnalyticsEvent
 import com.jraska.github.client.analytics.EventAnalytics
 import com.jraska.github.client.common.lazyMap
 import com.jraska.github.client.core.android.rx.toLiveData
+import com.jraska.github.client.core.android.snackbar.SnackbarData
+import com.jraska.github.client.core.android.snackbar.SnackbarDisplay
 import com.jraska.github.client.navigation.Navigator
 import com.jraska.github.client.navigation.Urls
 import com.jraska.github.client.rx.AppSchedulers
+import com.jraska.github.client.users.R
 import javax.inject.Inject
 
 internal class RepoDetailViewModel @Inject constructor(
   private val usersRepository: UsersRepository,
   private val appSchedulers: AppSchedulers,
   private val navigator: Navigator,
-  private val eventAnalytics: EventAnalytics
+  private val eventAnalytics: EventAnalytics,
+  private val snackbarDisplay: SnackbarDisplay
 ) : ViewModel() {
 
   private val liveDataMap: Map<String, LiveData<ViewState>> = lazyMap(this::createRepoDetailLiveData)
@@ -43,7 +49,14 @@ internal class RepoDetailViewModel @Inject constructor(
 
     eventAnalytics.report(event)
 
-    navigator.launchOnWeb(Urls.repo(fullRepoName))
+    snackbarDisplay.showSnackbar(
+      SnackbarData(
+        R.string.repo_detail_open_web_text,
+        Snackbar.LENGTH_INDEFINITE,
+        R.string.repo_detail_open_web_action to View.OnClickListener {
+          navigator.launchOnWeb(Urls.repo(fullRepoName))
+        })
+    )
   }
 
   sealed class ViewState {

feature/users/src/main/java/com/jraska/github/client/users/widget/TopSnackbarDisplay.kt

@@ -0,0 +1,55 @@
+package com.jraska.github.client.users.widget
+
+import android.app.Activity
+import android.view.View
+import android.view.ViewGroup
+import androidx.coordinatorlayout.widget.CoordinatorLayout
+import com.google.android.material.snackbar.Snackbar
+import com.jraska.github.client.core.android.TopActivityProvider
+import com.jraska.github.client.core.android.snackbar.SnackbarData
+import com.jraska.github.client.core.android.snackbar.SnackbarDisplay
+import javax.inject.Inject
+
+class TopSnackbarDisplay @Inject constructor(
+  private val topActivityProvider: TopActivityProvider
+) : SnackbarDisplay {
+
+  override fun showSnackbar(snackbarData: SnackbarData) {
+    topActivityProvider.onTopActivity { showSnackbar(it, snackbarData) }
+  }
+
+  private fun showSnackbar(activity: Activity, snackbarData: SnackbarData) {
+    val snackbarView = findSnackbarView(activity)
+
+    val snackbar = Snackbar.make(snackbarView, snackbarData.text, snackbarData.length)
+    snackbarData.action?.also { snackbar.setAction(it.first, it.second) }
+
+    snackbar.show()
+  }
+
+  private fun findSnackbarView(activity: Activity): View {
+    val contentView = activity.findViewById<View>(android.R.id.content)
+    return findCoordinatorLayout(contentView) ?: contentView
+  }
+
+  private fun findCoordinatorLayout(view: View): CoordinatorLayout? {
+    if (view is CoordinatorLayout) {
+      return view
+    }
+
+    if (view is ViewGroup) {
+      val childCount = view.childCount
+      for (childViewIndex in 0 until childCount) {
+        val childView = view.getChildAt(childViewIndex)
+
+        val coordinatorLayout = findCoordinatorLayout(childView)
+        if (coordinatorLayout != null) {
+          return coordinatorLayout
+        }
+      }
+    }
+
+    return null
+  }
+
+}

feature/users/src/main/res/values/strings.xml

@@ -4,6 +4,8 @@
   <string name="repos_contributed">Contributed repositories</string>
   <string name="repo_detail_language_used_template">Language: %s</string>
   <string name="repo_detail_issues_template">Issues Count: %s</string>
+  <string name="repo_detail_open_web_text">Test: Opens a website</string>
+  <string name="repo_detail_open_web_action">Open</string>
 
   <string name="settings">Settings</string>
   <string name="github_clickable_icon">GitHub clickable icon</string>