Add option to log out for messenger

app/src/main/kotlin/com/pitchedapps/frost/activities/BaseMainActivity.kt

@@ -846,7 +846,7 @@ abstract class BaseMainActivity : BaseActivity(), MainActivityContract,
                             .setCustomView(BadgedIcon(this@BaseMainActivity).apply {
                                 iicon = fbItem.icon
                             }.also {
-                                it.setAllAlpha(if (index == 0) SELECTED_TAB_ALPHA else UNSELECTED_TAB_ALPHA)
+                                it.init(index, fbItem)
                             })
                     )
                 }
@@ -861,6 +861,15 @@ abstract class BaseMainActivity : BaseActivity(), MainActivityContract,
             }
         }
 
+        private fun BadgedIcon.init(index: Int, fbItem: FbItem) {
+            setAllAlpha(if (index == 0) SELECTED_TAB_ALPHA else UNSELECTED_TAB_ALPHA)
+            setOnLongClickListener {
+                if (index != contentBinding.viewpager.currentItem) return@setOnLongClickListener false
+                currentFragment?.onTabLongClick()
+                true
+            }
+        }
+
         fun saveInstanceState(outState: Bundle) {
             outState.putStringArrayList(STATE_FORCE_FALLBACK, ArrayList(forcedFallbacks))
         }

app/src/main/kotlin/com/pitchedapps/frost/contracts/FrostContentContract.kt

@@ -16,11 +16,19 @@
  */
 package com.pitchedapps.frost.contracts
 
+import android.content.Context
 import android.view.View
+import ca.allanwang.kau.utils.materialDialog
+import com.pitchedapps.frost.R
+import com.pitchedapps.frost.db.CookieDao
+import com.pitchedapps.frost.db.updateMessengerCookie
+import com.pitchedapps.frost.facebook.FbCookie
 import com.pitchedapps.frost.facebook.FbItem
+import com.pitchedapps.frost.prefs.Prefs
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.ExperimentalCoroutinesApi
 import kotlinx.coroutines.channels.BroadcastChannel
+import kotlinx.coroutines.launch
 
 /**
  * Created by Allan Wang on 20/12/17.
@@ -171,8 +179,37 @@ interface FrostContentCore : DynamicUiContract {
      */
     fun onTabClicked()
 
+    /**
+     * Triggered when view is within viewpager
+     * and tab is long clicked
+     */
+    fun onTabLongClicked()
+
     /**
      * Signal destruction to release some content manually
      */
     fun destroy()
 }
+
+internal fun FrostContentCore.onTabLongClicked(
+    context: Context,
+    prefs: Prefs,
+    fbCookie: FbCookie,
+    cookieDao: CookieDao
+) {
+    when (parent.baseEnum) {
+        FbItem.MESSENGER -> {
+            context.materialDialog {
+                message(R.string.messenger_logout)
+                positiveButton(R.string.kau_logout) {
+                    scope.launch {
+                        fbCookie.removeMessengerCookie()
+                        cookieDao.updateMessengerCookie(prefs.userId, null)
+                        reloadBase(true)
+                    }
+                }
+                negativeButton(R.string.kau_cancel)
+            }
+        }
+    }
+}

app/src/main/kotlin/com/pitchedapps/frost/facebook/FbCookie.kt

@@ -110,6 +110,22 @@ class FbCookie(private val prefs: Prefs, private val cookieDao: CookieDao) {
         }
     }
 
+    /**
+     * As far as I'm aware there is no way to remove a specific cookie.
+     * As we only care about fb and messenger cookies, this is a workaround
+     * in which we remove all cookies then add back the fb one.
+     */
+    suspend fun removeMessengerCookie() {
+        withContext(Dispatchers.Main + NonCancellable) {
+            val fbCookie = webCookie
+            with(CookieManager.getInstance()) {
+                removeAllCookies()
+                suspendSetWebCookie(FB_COOKIE_DOMAIN, fbCookie)
+                flush()
+            }
+        }
+    }
+
     suspend fun switchUser(id: Long) {
         val cookie = cookieDao.selectById(id) ?: return L.e { "No cookie for id" }
         switchUser(cookie)

app/src/main/kotlin/com/pitchedapps/frost/fragments/FragmentBase.kt

@@ -251,4 +251,6 @@ abstract class BaseFragment : Fragment(), CoroutineScope, FragmentContract,
     override fun onBackPressed(): Boolean = content?.core?.onBackPressed() ?: false
 
     override fun onTabClick(): Unit = content?.core?.onTabClicked() ?: Unit
+
+    override fun onTabLongClick(): Unit = content?.core?.onTabLongClicked() ?: Unit
 }

app/src/main/kotlin/com/pitchedapps/frost/fragments/FragmentContract.kt

@@ -96,6 +96,8 @@ interface FragmentContract : FrostContentContainer {
     fun onBackPressed(): Boolean
 
     fun onTabClick()
+
+    fun onTabLongClick()
 }
 
 interface RecyclerContentContract {

app/src/main/kotlin/com/pitchedapps/frost/views/FrostRecyclerView.kt

@@ -26,6 +26,9 @@ import ca.allanwang.kau.utils.fadeOut
 import com.pitchedapps.frost.contracts.FrostContentContainer
 import com.pitchedapps.frost.contracts.FrostContentCore
 import com.pitchedapps.frost.contracts.FrostContentParent
+import com.pitchedapps.frost.contracts.onTabLongClicked
+import com.pitchedapps.frost.db.CookieDao
+import com.pitchedapps.frost.facebook.FbCookie
 import com.pitchedapps.frost.fragments.RecyclerContentContract
 import com.pitchedapps.frost.prefs.Prefs
 import kotlinx.coroutines.ExperimentalCoroutinesApi
@@ -47,6 +50,8 @@ class FrostRecyclerView @JvmOverloads constructor(
     FrostContentCore {
 
     private val prefs: Prefs by inject()
+    private val fbCookie: FbCookie by inject()
+    private val cookieDao: CookieDao by inject()
 
     override fun reload(animate: Boolean) = reloadBase(animate)
 
@@ -107,6 +112,10 @@ class FrostRecyclerView @JvmOverloads constructor(
         else scrollToTop()
     }
 
+    override fun onTabLongClicked() {
+        onTabLongClicked(context, prefs, fbCookie, cookieDao)
+    }
+
     private fun scrollToTop() {
         stopScroll()
         smoothScrollToPosition(0)

app/src/main/kotlin/com/pitchedapps/frost/views/FrostWebView.kt

@@ -29,6 +29,7 @@ import ca.allanwang.kau.utils.launchMain
 import com.pitchedapps.frost.contracts.FrostContentContainer
 import com.pitchedapps.frost.contracts.FrostContentCore
 import com.pitchedapps.frost.contracts.FrostContentParent
+import com.pitchedapps.frost.contracts.onTabLongClicked
 import com.pitchedapps.frost.db.CookieDao
 import com.pitchedapps.frost.db.currentCookie
 import com.pitchedapps.frost.facebook.FB_HOME_URL
@@ -196,6 +197,10 @@ class FrostWebView @JvmOverloads constructor(
 
     private fun smoothScrollBy(y: Int) = smoothScrollTo(max(0, scrollY + y))
 
+    override fun onTabLongClicked() {
+        onTabLongClicked(context, prefs, fbCookie, cookieDao)
+    }
+
     override var active: Boolean = true
         set(value) {
             if (field == value) return

app/src/main/res/values/strings.xml

@@ -79,4 +79,6 @@
 
     <string name="disclaimer">Disclaimer</string>
 
+    <string name="messenger_logout">Log out of Messenger?</string>
+
 </resources>

app/src/test/kotlin/com/pitchedapps/frost/facebook/FbConstTest.kt

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2021 Allan Wang
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
 package com.pitchedapps.frost.facebook
 
 import kotlin.test.Test