Create activity refresh observable

app/src/main/kotlin/com/pitchedapps/frost/MainActivity.kt

@@ -7,7 +7,6 @@ import android.support.design.widget.TabLayout
 import android.support.v4.app.FragmentManager
 import android.support.v4.app.FragmentPagerAdapter
 import android.support.v4.view.ViewPager
-import android.support.v7.app.AppCompatActivity
 import android.support.v7.widget.Toolbar
 import android.view.Menu
 import android.view.MenuItem
@@ -23,16 +22,14 @@ import com.mikepenz.materialdrawer.Drawer
 import com.pitchedapps.frost.dbflow.CookieModel
 import com.pitchedapps.frost.dbflow.loadFbTabs
 import com.pitchedapps.frost.dbflow.saveAsync
-import com.pitchedapps.frost.events.FbAccountEvent
 import com.pitchedapps.frost.facebook.FbCookie.switchUser
 import com.pitchedapps.frost.facebook.FbTab
 import com.pitchedapps.frost.facebook.PROFILE_PICTURE_URL
 import com.pitchedapps.frost.fragments.WebFragment
 import com.pitchedapps.frost.utils.*
+import io.reactivex.android.schedulers.AndroidSchedulers
 import io.reactivex.disposables.Disposable
-import org.greenrobot.eventbus.EventBus
-import org.greenrobot.eventbus.Subscribe
-import org.greenrobot.eventbus.ThreadMode
+import io.reactivex.subjects.PublishSubject
 
 class MainActivity : BaseLeakActivity() {
 
@@ -45,6 +42,7 @@ class MainActivity : BaseLeakActivity() {
     lateinit var drawerHeader: AccountHeader
     val cookies: ArrayList<CookieModel> by lazy { cookies() }
     var titleDisposable: Disposable? = null
+    var refreshObservable = PublishSubject.create<Unit>().observeOn(AndroidSchedulers.mainThread())
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
@@ -94,7 +92,12 @@ class MainActivity : BaseLeakActivity() {
 
     fun setupTabs() {
         viewPager.addOnPageChangeListener(TabLayout.TabLayoutOnPageChangeListener(tabs))
-        tabs.addOnTabSelectedListener(TabLayout.ViewPagerOnTabSelectedListener(viewPager))
+        tabs.addOnTabSelectedListener(object : TabLayout.ViewPagerOnTabSelectedListener(viewPager) {
+            override fun onTabReselected(tab: TabLayout.Tab) {
+                super.onTabReselected(tab)
+                currentFragment.web.scrollOrRefresh()
+            }
+        })
         adapter.pages.forEach { tabs.addTab(tabs.newTab().setIcon(it.icon.toDrawable(this))) }
     }
 
@@ -171,16 +174,4 @@ class MainActivity : BaseLeakActivity() {
         override fun getPageTitle(position: Int): CharSequence = getString(pages[position].titleId)
     }
 
-    @Subscribe(threadMode = ThreadMode.MAIN)
-    fun accountEvent(event: FbAccountEvent) = event.execute(drawerHeader)
-
-    override fun onStart() {
-        super.onStart();
-        EventBus.getDefault().register(this);
-    }
-
-    override fun onStop() {
-        EventBus.getDefault().unregister(this);
-        super.onStop();
-    }
 }

app/src/main/kotlin/com/pitchedapps/frost/SelectorActivity.kt

@@ -0,0 +1,8 @@
+package com.pitchedapps.frost
+
+/**
+ * Created by Allan Wang on 2017-06-04.
+ */
+class SelectorActivity : BaseLeakActivity() {
+
+}

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

@@ -15,7 +15,6 @@ import org.greenrobot.eventbus.EventBus
  */
 object FbCookie {
 
-    var dbCookie: String? = null
     var webCookie: String?
         get() = CookieManager.getInstance().getCookie(FB_URL_BASE)
         set(value) {
@@ -25,7 +24,7 @@ object FbCookie {
 
     operator fun invoke() {
         L.d("User ${Prefs.userId}")
-        dbCookie = loadFbCookie(Prefs.userId)?.cookie
+        val dbCookie = loadFbCookie(Prefs.userId)?.cookie
         if (dbCookie != null && webCookie == null) {
             L.d("DbCookie found & WebCookie is null; setting webcookie")
             webCookie = dbCookie
@@ -55,8 +54,7 @@ object FbCookie {
     fun switchUser(cookie: CookieModel?) {
         if (cookie == null) return
         Prefs.userId = cookie.id
-        dbCookie = cookie.cookie
-        webCookie = dbCookie
+        webCookie = cookie.cookie
         //TODO add webview refresh event
     }
 

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

@@ -1,14 +1,17 @@
 package com.pitchedapps.frost.fragments
 
+import android.content.Context
 import android.os.Bundle
 import android.support.v4.widget.SwipeRefreshLayout
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import com.pitchedapps.frost.MainActivity
 import com.pitchedapps.frost.utils.L
 import com.pitchedapps.frost.utils.putString
 import com.pitchedapps.frost.web.FrostWebView
 import com.pitchedapps.frost.web.FrostWebViewCore
+import io.reactivex.disposables.Disposable
 
 /**
  * Created by Allan Wang on 2017-05-29.
@@ -22,11 +25,12 @@ class WebFragment : BaseFragment() {
         fun newInstance(position: Int, url: String) = BaseFragment.newInstance(WebFragment(), position).putString(ARG_URL, url)
     }
 
-    val refresh: SwipeRefreshLayout by lazy { frostWebView.refresh }
+//    val refresh: SwipeRefreshLayout by lazy { frostWebView.refresh }
     val web: FrostWebViewCore by lazy { frostWebView.web }
     lateinit var url: String
     lateinit private var frostWebView: FrostWebView
     private var firstLoad = true
+    private var refreshDisposable: Disposable? = null
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
@@ -58,5 +62,21 @@ class WebFragment : BaseFragment() {
         }
     }
 
+    override fun onAttach(context: Context) {
+        super.onAttach(context)
+        refreshDisposable?.dispose()
+        if (context is MainActivity)
+            refreshDisposable = context.refreshObservable.subscribe {
+                web.clearHistory()
+                web.loadBaseUrl()
+            }
+    }
+
+    override fun onDetach() {
+        refreshDisposable?.dispose()
+        L.d("F Detatch")
+        super.onDetach()
+    }
+
     override fun onBackPressed() = frostWebView.onBackPressed()
 }

app/src/main/kotlin/com/pitchedapps/frost/utils/ContextUtils.kt

@@ -18,9 +18,9 @@ import com.pitchedapps.frost.facebook.FbTab
 private const val EXTRA_COOKIES = "extra_cookies"
 private const val ARG_URL = "arg_url"
 
-fun Context.launchNewTask(clazz: Class<out Activity>, cookieList: ArrayList<CookieModel> = arrayListOf()) {
+fun Context.launchNewTask(clazz: Class<out Activity>, cookieList: ArrayList<CookieModel> = arrayListOf(), clearStack: Boolean = true) {
     val intent = (Intent(this, clazz))
-    intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP or Intent.FLAG_ACTIVITY_SINGLE_TOP or Intent.FLAG_ACTIVITY_NEW_TASK)
+    if (clearStack) intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP or Intent.FLAG_ACTIVITY_SINGLE_TOP or Intent.FLAG_ACTIVITY_NEW_TASK)
     intent.putParcelableArrayListExtra(EXTRA_COOKIES, cookieList)
     startActivity(intent)
     if (this is Activity) finish()

app/src/main/kotlin/com/pitchedapps/frost/web/FrostWebViewCore.kt

@@ -1,5 +1,6 @@
 package com.pitchedapps.frost.web
 
+import android.animation.ValueAnimator
 import android.annotation.SuppressLint
 import android.content.Context
 import android.support.v4.view.MotionEventCompat
@@ -9,13 +10,14 @@ import android.support.v4.view.ViewCompat
 import android.util.AttributeSet
 import android.view.MotionEvent
 import android.view.View
+import android.view.animation.DecelerateInterpolator
 import android.webkit.WebView
 import com.pitchedapps.frost.events.FbAccountEvent
+import com.pitchedapps.frost.utils.L
 import io.reactivex.Scheduler
 import io.reactivex.android.schedulers.AndroidSchedulers
 import io.reactivex.disposables.Disposable
 import io.reactivex.subjects.BehaviorSubject
-import io.reactivex.subjects.Subject
 import org.greenrobot.eventbus.EventBus
 import org.greenrobot.eventbus.Subscribe
 import org.greenrobot.eventbus.ThreadMode
@@ -54,7 +56,7 @@ class FrostWebViewCore @JvmOverloads constructor(
     @SuppressLint("SetJavaScriptEnabled")
     fun setupWebview() {
         settings.javaScriptEnabled = true
-        settings.domStorageEnabled = true
+//        settings.domStorageEnabled = true
         setLayerType(View.LAYER_TYPE_HARDWARE, null)
         setWebViewClient(FrostWebViewClient(refreshObservable))
         setWebChromeClient(FrostChromeClient(progressObservable, titleObservable))
@@ -120,6 +122,29 @@ class FrostWebViewCore @JvmOverloads constructor(
         super.onDetachedFromWindow()
     }
 
+    /**
+     * If webview is already at the top, refresh
+     * Otherwise scroll to top
+     */
+    fun scrollOrRefresh() {
+        L.d("Scroll or Refresh")
+        if (scrollY < 5) reload()
+        else scrollToTop()
+    }
+
+    fun scrollToTop() {
+        if (scrollY > 1000) scrollTo(0, 0)
+        else {
+            val animator = ValueAnimator.ofInt(scrollY, 0)
+            animator.duration = scrollY.toLong()
+            animator.interpolator = DecelerateInterpolator()
+            animator.addUpdateListener {
+                scrollY = it.animatedValue as Int
+                invalidate()
+            }
+        }
+    }
+
     @Subscribe(threadMode = ThreadMode.MAIN)
     fun webEvent(event: FbAccountEvent) = event.execute(this)