For #419: Create launch icon for private browsing

app/src/debug/AndroidManifest.xml

@@ -22,6 +22,15 @@
         <activity android:name="com.facebook.flipper.android.diagnostics.FlipperDiagnosticActivity"
                   android:exported="true"/>
         <service android:name="com.facebook.flipper.plugins.leakcanary.RecordLeakService" />
+
+        <activity
+            android:name=".HomeActivity">
+            <meta-data
+                android:name="android.app.shortcuts"
+                android:resource="@xml/shortcuts_debug"
+                tools:node="replace" />
+        </activity>
+
     </application>
 
 </manifest>

app/src/debug/res/xml/shortcuts_debug.xml

@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+<shortcuts xmlns:android="http://schemas.android.com/apk/res/android">
+    <shortcut
+        android:shortcutId="open_new_tab"
+        android:enabled="true"
+        android:icon="@drawable/ic_static_shortcut_tab"
+        android:shortcutShortLabel="@string/home_screen_shortcut_open_new_tab"
+        android:shortcutLongLabel="@string/home_screen_shortcut_open_new_tab">
+        <intent
+            android:action="org.mozilla.fenix.OPEN_TAB"
+            android:targetPackage="org.mozilla.fenix.debug"
+            android:targetClass="org.mozilla.fenix.IntentReceiverActivity" />
+    </shortcut>
+    <shortcut
+        android:shortcutId="open_new_private_tab"
+        android:enabled="true"
+        android:icon="@drawable/ic_static_shortcut_private_tab"
+        android:shortcutShortLabel="@string/home_screen_shortcut_open_new_private_tab"
+        android:shortcutLongLabel="@string/home_screen_shortcut_open_new_private_tab">
+        <intent
+            android:action="org.mozilla.fenix.OPEN_PRIVATE_TAB"
+            android:targetPackage="org.mozilla.fenix.debug"
+            android:targetClass="org.mozilla.fenix.IntentReceiverActivity" />
+    </shortcut>
+</shortcuts>

app/src/main/AndroidManifest.xml

@@ -10,6 +10,7 @@
     <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
     <uses-permission android:name="android.permission.CAMERA" />
     <uses-permission android:name="android.permission.RECORD_AUDIO" />
+    <uses-permission android:name="com.android.launcher.permission.INSTALL_SHORTCUT"/>
 
     <!-- Needed to prompt the user to give permission to install a downloaded apk -->
     <uses-permission-sdk-23 android:name="android.permission.REQUEST_INSTALL_PACKAGES" />
@@ -58,6 +59,10 @@
                 <data android:scheme="fenix"
                     android:host="make_default_browser"/>
             </intent-filter>
+
+            <meta-data
+                android:name="android.app.shortcuts"
+                android:resource="@xml/shortcuts" />
         </activity>
 
         <activity
@@ -118,6 +123,54 @@
                 android:resource="@mipmap/ic_launcher" />
         </activity>
 
+        <activity-alias
+                android:name="org.mozilla.fenix.alias.IntentReceiverActivity"
+                android:label="@string/app_name_private"
+                android:icon="@mipmap/ic_launcher_private"
+                android:roundIcon="@mipmap/ic_launcher_private_round"
+                android:targetActivity=".IntentReceiverActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW" />
+
+                <category android:name="android.intent.category.DEFAULT" />
+                <category android:name="android.intent.category.BROWSABLE" />
+
+                <data android:scheme="http" />
+                <data android:scheme="https" />
+            </intent-filter>
+
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW" />
+
+                <category android:name="android.intent.category.BROWSABLE" />
+                <category android:name="android.intent.category.DEFAULT" />
+
+                <data android:scheme="http" />
+                <data android:scheme="https" />
+                <data android:mimeType="text/html" />
+                <data android:mimeType="text/plain" />
+                <data android:mimeType="application/xhtml+xml" />
+            </intent-filter>
+
+            <intent-filter>
+                <action android:name="android.intent.action.SEND" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <data android:mimeType="text/plain" />
+            </intent-filter>
+
+            <intent-filter>
+                <action android:name="android.intent.action.ASSIST" />
+                <category android:name="android.intent.category.DEFAULT" />
+            </intent-filter>
+
+            <meta-data
+                android:name="com.android.systemui.action_assist_icon"
+                android:resource="@mipmap/ic_launcher_private" />
+            <meta-data
+                android:name="private"
+                android:value="true" />
+        </activity-alias>
+
         <activity
             android:name=".browser.BrowserPerformanceTestActivity"
             android:enabled="${isRaptorEnabled}"

app/src/main/java/org/mozilla/fenix/HomeActivity.kt

@@ -86,6 +86,8 @@ open class HomeActivity : AppCompatActivity(), ShareFragment.TabsSharedCallback
     final override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
 
+        setPrivateModeIfNecessary()
+
         components.publicSuffixList.prefetch()
         setupThemeAndBrowsingMode()
 
@@ -169,6 +171,20 @@ open class HomeActivity : AppCompatActivity(), ShareFragment.TabsSharedCallback
         }
     }
 
+    /**
+     * External sources such as 3rd party links and shortcuts use this function to enter
+     * private mode directly before the content view is created.
+     */
+    private fun setPrivateModeIfNecessary() {
+        intent?.toSafeIntent()?.let {
+            if (it.hasExtra(PRIVATE_BROWSING_MODE)) {
+                val startPrivateMode = it.getBooleanExtra(PRIVATE_BROWSING_MODE, false)
+                settings.usePrivateMode = startPrivateMode
+                intent.removeExtra(PRIVATE_BROWSING_MODE)
+            }
+        }
+    }
+
     private fun setupThemeAndBrowsingMode() {
         browsingModeManager = createBrowsingModeManager()
         themeManager = createThemeManager()
@@ -347,6 +363,7 @@ open class HomeActivity : AppCompatActivity(), ShareFragment.TabsSharedCallback
         const val OPEN_TO_BROWSER = "open_to_browser"
         const val OPEN_TO_BROWSER_AND_LOAD = "open_to_browser_and_load"
         const val OPEN_TO_SEARCH = "open_to_search"
+        const val PRIVATE_BROWSING_MODE = "private_browsing_mode"
         const val EXTRA_DELETE_PRIVATE_TABS = "notification_delete_and_open"
         const val EXTRA_OPENED_FROM_NOTIFICATION = "notification_open"
     }

app/src/main/java/org/mozilla/fenix/IntentReceiverActivity.kt

@@ -6,6 +6,7 @@ package org.mozilla.fenix
 
 import android.app.Activity
 import android.content.Intent
+import android.content.pm.PackageManager
 import android.os.Bundle
 import android.speech.RecognizerIntent
 import kotlinx.coroutines.MainScope
@@ -17,6 +18,7 @@ import org.mozilla.fenix.customtabs.CustomTabActivity
 import org.mozilla.fenix.ext.components
 import org.mozilla.fenix.ext.metrics
 import org.mozilla.fenix.ext.settings
+import org.mozilla.fenix.home.intent.StartSearchIntentProcessor
 
 class IntentReceiverActivity : Activity() {
 
@@ -33,7 +35,10 @@ class IntentReceiverActivity : Activity() {
             return
         }
 
-        val isPrivate = this.settings.usePrivateMode
+        val isPrivate = packageManager
+            ?.getActivityInfo(componentName, PackageManager.GET_META_DATA)
+            ?.metaData
+            ?.getBoolean(PRIVATE_MODE) ?: this.settings.usePrivateMode
 
         MainScope().launch {
             // The intent property is nullable, but the rest of the code below
@@ -79,6 +84,24 @@ class IntentReceiverActivity : Activity() {
                 // from a session that the user already "erased".
                 intent.flags and Intent.FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY == 0
             }
+            intent.action == ACTION_OPEN_TAB || intent.action == ACTION_OPEN_PRIVATE_TAB -> {
+                intent.setClassName(applicationContext, HomeActivity::class.java.name)
+                val startPrivateMode = (intent.action == ACTION_OPEN_PRIVATE_TAB)
+                if (startPrivateMode) {
+                    intent.putExtra(
+                        HomeActivity.OPEN_TO_SEARCH,
+                        StartSearchIntentProcessor.STATIC_SHORTCUT_NEW_PRIVATE_TAB
+                    )
+                } else {
+                    intent.putExtra(
+                        HomeActivity.OPEN_TO_SEARCH,
+                        StartSearchIntentProcessor.STATIC_SHORTCUT_NEW_TAB
+                    )
+                }
+                intent.putExtra(HomeActivity.PRIVATE_BROWSING_MODE, startPrivateMode)
+                intent.flags = intent.flags or Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_CLEAR_TASK
+                true
+            }
             else -> {
                 intent.setClassName(applicationContext, HomeActivity::class.java.name)
                 false
@@ -124,5 +147,8 @@ class IntentReceiverActivity : Activity() {
         private const val SPEECH_REQUEST_CODE = 0
         const val SPEECH_PROCESSING = "speech_processing"
         const val PREVIOUS_INTENT = "previous_intent"
+        const val PRIVATE_MODE = "private"
+        const val ACTION_OPEN_TAB = "org.mozilla.fenix.OPEN_TAB"
+        const val ACTION_OPEN_PRIVATE_TAB = "org.mozilla.fenix.OPEN_PRIVATE_TAB"
     }
 }

app/src/main/java/org/mozilla/fenix/components/PrivateShortcutCreateManager.kt

@@ -0,0 +1,49 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+package org.mozilla.fenix.components
+
+import android.app.PendingIntent
+import android.content.Context
+import android.content.Intent
+import androidx.core.content.pm.ShortcutInfoCompat
+import androidx.core.content.pm.ShortcutManagerCompat
+import androidx.core.graphics.drawable.IconCompat
+import org.mozilla.fenix.HomeActivity
+import org.mozilla.fenix.R
+import org.mozilla.fenix.home.intent.StartSearchIntentProcessor
+import java.util.UUID
+
+/**
+ * Handles the creation of pinned shortcuts.
+ */
+object PrivateShortcutCreateManager {
+
+    fun createPrivateShortcut(context: Context) {
+        if (!ShortcutManagerCompat.isRequestPinShortcutSupported(context)) return
+
+        val icon = IconCompat.createWithResource(context, R.mipmap.ic_launcher_private_round)
+        val shortcut = ShortcutInfoCompat.Builder(context, UUID.randomUUID().toString())
+            .setShortLabel(context.getString(R.string.app_name_private))
+            .setLongLabel(context.getString(R.string.app_name_private))
+            .setIcon(icon)
+            .setIntent(Intent(context, HomeActivity::class.java).apply {
+                action = Intent.ACTION_VIEW
+                flags = Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_CLEAR_TASK
+                putExtra(HomeActivity.PRIVATE_BROWSING_MODE, true)
+                putExtra(
+                    HomeActivity.OPEN_TO_SEARCH,
+                    StartSearchIntentProcessor.PRIVATE_BROWSING_PINNED_SHORTCUT
+                )
+            })
+            .build()
+        val homeScreenIntent = Intent(Intent.ACTION_MAIN)
+            .addCategory(Intent.CATEGORY_HOME)
+            .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
+        val intentSender = PendingIntent
+            .getActivity(context, 0, homeScreenIntent, PendingIntent.FLAG_UPDATE_CURRENT)
+            .intentSender
+        ShortcutManagerCompat.requestPinShortcut(context, shortcut, intentSender)
+    }
+}

app/src/main/java/org/mozilla/fenix/home/HomeFragment.kt

@@ -9,9 +9,13 @@ import android.content.Context
 import android.content.DialogInterface
 import android.graphics.drawable.BitmapDrawable
 import android.os.Bundle
+import android.view.Gravity
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import android.widget.Button
+import android.widget.LinearLayout
+import android.widget.PopupWindow
 import androidx.annotation.StringRes
 import androidx.appcompat.app.AlertDialog
 import androidx.appcompat.app.AppCompatActivity
@@ -54,15 +58,18 @@ import org.mozilla.fenix.BrowserDirection
 import org.mozilla.fenix.FenixViewModelProvider
 import org.mozilla.fenix.HomeActivity
 import org.mozilla.fenix.R
+import org.mozilla.fenix.browser.browsingmode.BrowsingMode
 import org.mozilla.fenix.collections.CreateCollectionViewModel
 import org.mozilla.fenix.collections.SaveCollectionStep
 import org.mozilla.fenix.components.FenixSnackbar
+import org.mozilla.fenix.components.PrivateShortcutCreateManager
 import org.mozilla.fenix.components.TabCollectionStorage
 import org.mozilla.fenix.components.metrics.Event
 import org.mozilla.fenix.ext.metrics
 import org.mozilla.fenix.ext.nav
 import org.mozilla.fenix.ext.requireComponents
 import org.mozilla.fenix.ext.sessionsOfType
+import org.mozilla.fenix.ext.settings
 import org.mozilla.fenix.ext.toTab
 import org.mozilla.fenix.home.sessioncontrol.CollectionAction
 import org.mozilla.fenix.home.sessioncontrol.Mode
@@ -84,7 +91,6 @@ import org.mozilla.fenix.onboarding.FenixOnboarding
 import org.mozilla.fenix.settings.SupportUtils
 import org.mozilla.fenix.share.ShareTab
 import org.mozilla.fenix.utils.FragmentPreDrawManager
-import org.mozilla.fenix.utils.Settings
 import org.mozilla.fenix.utils.allowUndo
 import org.mozilla.fenix.whatsnew.WhatsNew
 
@@ -212,7 +218,7 @@ class HomeFragment : Fragment(), AccountObserver {
 
             val searchEngine = requireComponents.search.searchEngineManager.getDefaultSearchEngineAsync(
                 requireContext(),
-                Settings.getInstance(requireContext()).defaultSearchEngineName
+                requireContext().settings.defaultSearchEngineName
             )
             val searchIcon = BitmapDrawable(resources, searchEngine.icon)
             searchIcon.setBounds(0, 0, iconSize, iconSize)
@@ -251,6 +257,10 @@ class HomeFragment : Fragment(), AccountObserver {
         ) { newMode ->
             invokePendingDeleteJobs()
 
+            if (newMode == BrowsingMode.Private) {
+                requireContext().settings.incrementNumTimesPrivateModeOpened()
+            }
+
             if (onboarding.userHasBeenOnboarded()) {
                 getManagedEmitter<SessionControlChange>().onNext(
                     SessionControlChange.ModeChange(Mode.fromBrowsingMode(newMode))
@@ -290,6 +300,11 @@ class HomeFragment : Fragment(), AccountObserver {
         (activity as AppCompatActivity).supportActionBar?.hide()
 
         requireComponents.backgroundServices.accountManager.register(this, owner = this)
+
+        if (requireContext().settings.showPrivateModeContextualFeatureRecommender &&
+            browsingModeManager.mode.isPrivate) {
+            recommendPrivateBrowsingShortcut()
+        }
     }
 
     override fun onStart() {
@@ -543,6 +558,34 @@ class HomeFragment : Fragment(), AccountObserver {
         homeViewModel.motionLayoutProgress = homeLayout?.progress ?: 0F
     }
 
+    private fun recommendPrivateBrowsingShortcut() {
+        context?.let {
+            val layout = LayoutInflater.from(it)
+                .inflate(R.layout.pbm_shortcut_popup, null)
+            val trackingOnboarding =
+                PopupWindow(
+                    layout,
+                    (resources.displayMetrics.widthPixels / CFR_WIDTH_DIVIDER).toInt(),
+                    LinearLayout.LayoutParams.WRAP_CONTENT,
+                    true
+                )
+            layout.findViewById<Button>(R.id.cfr_pos_button).apply {
+                setOnClickListener {
+                    PrivateShortcutCreateManager.createPrivateShortcut(context)
+                    trackingOnboarding.dismiss()
+                }
+            }
+            layout.findViewById<Button>(R.id.cfr_neg_button).apply {
+                setOnClickListener { trackingOnboarding.dismiss() }
+            }
+            // We want to show the popup only after privateBrowsingButton is available.
+            // Otherwise, we will encounter an activity token error.
+            privateBrowsingButton.post {
+                trackingOnboarding.showAsDropDown(privateBrowsingButton, 0, CFR_Y_OFFSET, Gravity.TOP or Gravity.END)
+            }
+        }
+    }
+
     private fun hideOnboardingIfNeeded() {
         if (!onboarding.userHasBeenOnboarded()) {
             onboarding.finish()
@@ -896,6 +939,8 @@ class HomeFragment : Fragment(), AccountObserver {
         private const val TELEMETRY_HOME_IDENITIFIER = "home"
         private const val SHARED_TRANSITION_MS = 200L
         private const val TAB_ITEM_TRANSITION_NAME = "tab_item"
+        private const val CFR_WIDTH_DIVIDER = 1.7
+        private const val CFR_Y_OFFSET = -20
     }
 }