Add privacy setting to disable personalized learning by the keyboard

changelog.d/6633.feature

@@ -0,0 +1 @@
+Add privacy setting to disable personalized learning by the keyboard

library/ui-strings/src/main/res/values/strings.xml

@@ -2578,6 +2578,9 @@
     <string name="settings_security_prevent_screenshots_title">Prevent screenshots of the application</string>
     <string name="settings_security_prevent_screenshots_summary">Enabling this setting adds the FLAG_SECURE to all Activities. Restart the application for the change to take effect.</string>
 
+    <string name="settings_security_incognito_keyboard_title">Incognito keyboard</string>
+    <string name="settings_security_incognito_keyboard_summary">"Request that the keyboard should not update any personalized data such as typing history and dictionary based on what you've typed in conversations. Notice that some keyboards may not respect this setting."</string>
+
     <string name="error_saving_media_file">Could not save media file</string>
     <string name="change_password_summary">Set a new account password…</string>
 

vector/src/main/java/im/vector/app/features/home/room/detail/TimelineFragment.kt

@@ -1536,11 +1536,10 @@ class TimelineFragment :
 
         observerUserTyping()
 
-        if (vectorPreferences.sendMessageWithEnter()) {
-            // imeOptions="actionSend" only works with single line, so we remove multiline inputType
-            composerEditText.inputType = composerEditText.inputType and EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE.inv()
-            composerEditText.imeOptions = EditorInfo.IME_ACTION_SEND
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            composerEditText.setUseIncognitoKeyboard(vectorPreferences.useIncognitoKeyboard())
         }
+        composerEditText.setSendMessageWithEnter(vectorPreferences.sendMessageWithEnter())
 
         composerEditText.setOnEditorActionListener { v, actionId, keyEvent ->
             val imeActionId = actionId and EditorInfo.IME_MASK_ACTION

vector/src/main/java/im/vector/app/features/home/room/detail/composer/ComposerEditText.kt

@@ -20,10 +20,12 @@ package im.vector.app.features.home.room.detail.composer
 import android.content.ClipData
 import android.content.Context
 import android.net.Uri
+import android.os.Build
 import android.text.Editable
 import android.util.AttributeSet
 import android.view.inputmethod.EditorInfo
 import android.view.inputmethod.InputConnection
+import androidx.annotation.RequiresApi
 import androidx.appcompat.widget.AppCompatEditText
 import androidx.core.view.OnReceiveContentListener
 import androidx.core.view.ViewCompat
@@ -79,6 +81,27 @@ class ComposerEditText @JvmOverloads constructor(
         return ic
     }
 
+    /** Set whether the keyboard should disable personalized learning. */
+    @RequiresApi(Build.VERSION_CODES.O)
+    fun setUseIncognitoKeyboard(useIncognitoKeyboard: Boolean) {
+        imeOptions = if (useIncognitoKeyboard) {
+            imeOptions or EditorInfo.IME_FLAG_NO_PERSONALIZED_LEARNING
+        } else {
+            imeOptions and EditorInfo.IME_FLAG_NO_PERSONALIZED_LEARNING.inv()
+        }
+    }
+
+    /** Set whether enter should send the message or add a new line. */
+    fun setSendMessageWithEnter(sendMessageWithEnter: Boolean) {
+        if (sendMessageWithEnter) {
+            inputType = inputType and EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE.inv()
+            imeOptions = imeOptions or EditorInfo.IME_ACTION_SEND
+        } else {
+            inputType = inputType or EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE
+            imeOptions = imeOptions and EditorInfo.IME_ACTION_SEND.inv()
+        }
+    }
+
     init {
         addTextChangedListener(
                 object : SimpleTextWatcher() {

vector/src/main/java/im/vector/app/features/settings/VectorPreferences.kt

@@ -87,6 +87,7 @@ class VectorPreferences @Inject constructor(
         const val SETTINGS_INTEGRATION_MANAGER_UI_URL_KEY = "SETTINGS_INTEGRATION_MANAGER_UI_URL_KEY"
         const val SETTINGS_SECURE_MESSAGE_RECOVERY_PREFERENCE_KEY = "SETTINGS_SECURE_MESSAGE_RECOVERY_PREFERENCE_KEY"
         const val SETTINGS_PERSISTED_SPACE_BACKSTACK = "SETTINGS_PERSISTED_SPACE_BACKSTACK"
+        const val SETTINGS_SECURITY_INCOGNITO_KEYBOARD_PREFERENCE_KEY = "SETTINGS_SECURITY_INCOGNITO_KEYBOARD_PREFERENCE_KEY"
 
         const val SETTINGS_CRYPTOGRAPHY_HS_ADMIN_DISABLED_E2E_DEFAULT = "SETTINGS_CRYPTOGRAPHY_HS_ADMIN_DISABLED_E2E_DEFAULT"
 //        const val SETTINGS_SECURE_BACKUP_RESET_PREFERENCE_KEY = "SETTINGS_SECURE_BACKUP_RESET_PREFERENCE_KEY"
@@ -288,6 +289,7 @@ class VectorPreferences @Inject constructor(
 
                 SETTINGS_USE_RAGE_SHAKE_KEY,
                 SETTINGS_SECURITY_USE_FLAG_SECURE,
+                SETTINGS_SECURITY_INCOGNITO_KEYBOARD_PREFERENCE_KEY,
 
                 ShortcutsHandler.SHARED_PREF_KEY,
         )
@@ -969,6 +971,11 @@ class VectorPreferences @Inject constructor(
         return defaultPrefs.getBoolean(SETTINGS_SECURITY_USE_FLAG_SECURE, false)
     }
 
+    /** Whether the keyboard should disable personalized learning. */
+    fun useIncognitoKeyboard(): Boolean {
+        return defaultPrefs.getBoolean(SETTINGS_SECURITY_INCOGNITO_KEYBOARD_PREFERENCE_KEY, false)
+    }
+
     /**
      * The user enable protecting app access with pin code.
      * Currently we use the pin code store to know if the pin is enabled, so this is not used

vector/src/main/java/im/vector/app/features/settings/VectorSettingsSecurityPrivacyFragment.kt

@@ -20,6 +20,7 @@ package im.vector.app.features.settings
 import android.app.Activity
 import android.content.Intent
 import android.net.Uri
+import android.os.Build
 import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
@@ -160,6 +161,10 @@ class VectorSettingsSecurityPrivacyFragment :
         findPreference<VectorSwitchPreference>("SETTINGS_USER_ANALYTICS_CONSENT_KEY")!!
     }
 
+    private val incognitoKeyboardPref by lazy {
+        findPreference<VectorSwitchPreference>(VectorPreferences.SETTINGS_SECURITY_INCOGNITO_KEYBOARD_PREFERENCE_KEY)!!
+    }
+
     override fun onCreateRecyclerView(inflater: LayoutInflater, parent: ViewGroup, savedInstanceState: Bundle?): RecyclerView {
         return super.onCreateRecyclerView(inflater, parent, savedInstanceState).also {
             // Insert animation are really annoying the first time the list is shown
@@ -275,6 +280,9 @@ class VectorSettingsSecurityPrivacyFragment :
         // Analytics
         setUpAnalytics()
 
+        // Incognito Keyboard
+        setUpIncognitoKeyboard()
+
         // Pin code
         openPinCodeSettingsPref.setOnPreferenceClickListener {
             openPinCodePreferenceScreen()
@@ -337,6 +345,10 @@ class VectorSettingsSecurityPrivacyFragment :
         }
     }
 
+    private fun setUpIncognitoKeyboard() {
+        incognitoKeyboardPref.isVisible = Build.VERSION.SDK_INT >= Build.VERSION_CODES.O
+    }
+
     // Todo this should be refactored and use same state as 4S section
     private fun refreshXSigningStatus() {
         val crossSigningKeys = session.cryptoService().crossSigningService().getMyCrossSigningKeys()

vector/src/main/res/xml/vector_settings_security_privacy.xml

@@ -141,6 +141,12 @@
             android:summary="@string/settings_security_application_protection_summary"
             android:title="@string/settings_security_application_protection_title" />
 
+        <im.vector.app.core.preference.VectorSwitchPreference
+            android:defaultValue="false"
+            android:key="SETTINGS_SECURITY_INCOGNITO_KEYBOARD_PREFERENCE_KEY"
+            android:summary="@string/settings_security_incognito_keyboard_summary"
+            android:title="@string/settings_security_incognito_keyboard_title" />
+
         <im.vector.app.core.preference.VectorSwitchPreference
             android:defaultValue="false"
             android:key="SETTINGS_SECURITY_USE_FLAG_SECURE"