Adding a system preference whether to speak passwords in accessibility mode (settings).

By default we do not speak passwords if the user has no headset. However,
many users find this too restrictive and would like a way to enable
password announcement. While we cannot speak the passwords all the time
,to avoid leaking them, we expose a preference so each user can choose
the option that best works for him/her.

bug:5712607

Change-Id: I1a6e95c392c18dc8d7406b1cef49705756b31254

res/values/strings.xml

@@ -2760,6 +2760,8 @@ found in the list of installed apps.</string>
     <string name="accessibility_toggle_large_text_title">Large text</string>
     <!-- Title for the accessibility preference to power button to end a call. [CHAR LIMIT=35] -->
     <string name="accessibility_power_button_ends_call_title">Power button ends call</string>
+    <!-- Title for the accessibility preference to speak passwords. [CHAR LIMIT=35] -->
+    <string name="accessibility_speak_password_title">Speak passwords</string>
     <!-- Title for accessibility preference to enable touch exploration mode. [CHAR LIMIT=35] -->
     <string name="accessibility_touch_exploration_title">Explore by touch</string>
     <!-- Summary for accessibility of the touch exploration mode. [CHAR LIMIT=NONE] -->

res/xml/accessibility_settings.xml

@@ -45,11 +45,17 @@
                 android:persistent="false"
                 android:order="3"/>
 
+        <CheckBoxPreference
+                android:key="toggle_speak_password_preference"
+                android:title="@string/accessibility_speak_password_title"
+                android:persistent="false"
+                android:order="4"/>
+
         <PreferenceScreen
                 android:key="toggle_touch_exploration_preference"
                 android:title="@string/accessibility_touch_exploration_title"
                 android:fragment="com.android.settings.AccessibilitySettings$ToggleTouchExplorationFragment"
-                android:order="4" >
+                android:order="5" >
                 <extra android:name="title" android:value="@string/accessibility_touch_exploration_title" />
                 <extra android:name="summary" android:value="@string/accessibility_touch_exploration_summary" />
                 <extra android:name="enable_warning_title" android:value="@android:string/dialog_alert_title" />
@@ -63,7 +69,7 @@
                 android:entries="@array/long_press_timeout_selector_titles"
                 android:entryValues="@array/long_press_timeout_selector_values"
                 android:persistent="false"
-                android:order="5"/>
+                android:order="6"/>
 
         <com.android.settings.AccessibilityEnableScriptInjectionPreference
                 android:key="toggle_script_injection_preference"
@@ -74,7 +80,7 @@
                 android:positiveButtonText="@string/accessibility_script_injection_button_allow"
                 android:negativeButtonText="@string/accessibility_script_injection_button_disallow"
                 android:persistent="false"
-                android:order="6"/>
+                android:order="7"/>
 
     </PreferenceCategory>
 

src/com/android/settings/AccessibilitySettings.java

@@ -108,6 +108,8 @@ public class AccessibilitySettings extends SettingsPreferenceFragment implements
         "toggle_power_button_ends_call_preference";
     private static final String TOGGLE_AUTO_ROTATE_SCREEN_PREFERENCE =
         "toggle_auto_rotate_screen_preference";
+    private static final String TOGGLE_SPEAK_PASSWORD_PREFERENCE =
+        "toggle_speak_password_preference";
     private static final String TOGGLE_TOUCH_EXPLORATION_PREFERENCE =
         "toggle_touch_exploration_preference";
     private static final String SELECT_LONG_PRESS_TIMEOUT_PREFERENCE =
@@ -159,6 +161,7 @@ public class AccessibilitySettings extends SettingsPreferenceFragment implements
     private CheckBoxPreference mToggleLargeTextPreference;
     private CheckBoxPreference mTogglePowerButtonEndsCallPreference;
     private CheckBoxPreference mToggleAutoRotateScreenPreference;
+    private CheckBoxPreference mToggleSpeakPasswordPreference;
     private Preference mToggleTouchExplorationPreference;
     private ListPreference mSelectLongPressTimeoutPreference;
     private AccessibilityEnableScriptInjectionPreference mToggleScriptInjectionPreference;
@@ -213,6 +216,8 @@ public class AccessibilitySettings extends SettingsPreferenceFragment implements
         } else if (mToggleAutoRotateScreenPreference == preference) {
             handleToggleAutoRotateScreenPreferenceClick();
             return true;
+        } else if (mToggleSpeakPasswordPreference == preference) {
+            handleToggleSpeakPasswordPreferenceClick();
         }
         return super.onPreferenceTreeClick(preferenceScreen, preference);
     }
@@ -248,6 +253,12 @@ public class AccessibilitySettings extends SettingsPreferenceFragment implements
         }
     }
 
+    private void handleToggleSpeakPasswordPreferenceClick() {
+        Settings.Secure.putInt(getContentResolver(),
+                Settings.Secure.ACCESSIBILITY_SPEAK_PASSWORD,
+                mToggleSpeakPasswordPreference.isChecked() ? 1 : 0);
+    }
+
     private void initializeAllPreferences() {
         mServicesCategory = (PreferenceCategory) findPreference(SERVICES_CATEGORY);
         mSystemsCategory = (PreferenceCategory) findPreference(SYSTEM_CATEGORY);
@@ -268,6 +279,10 @@ public class AccessibilitySettings extends SettingsPreferenceFragment implements
         mToggleAutoRotateScreenPreference =
             (CheckBoxPreference) findPreference(TOGGLE_AUTO_ROTATE_SCREEN_PREFERENCE);
 
+        // Speak passwords.
+        mToggleSpeakPasswordPreference =
+            (CheckBoxPreference) findPreference(TOGGLE_SPEAK_PASSWORD_PREFERENCE);
+
         // Touch exploration enabled.
         mToggleTouchExplorationPreference = findPreference(TOGGLE_TOUCH_EXPLORATION_PREFERENCE);
 
@@ -427,6 +442,11 @@ public class AccessibilitySettings extends SettingsPreferenceFragment implements
                 Settings.System.ACCELEROMETER_ROTATION, 0) != 0;
         mToggleAutoRotateScreenPreference.setChecked(autoRotationEnabled);
 
+        // Speak passwords.
+        final boolean speakPasswordEnabled = Settings.Secure.getInt(getContentResolver(),
+                Settings.Secure.ACCESSIBILITY_SPEAK_PASSWORD, 0) != 0;
+        mToggleSpeakPasswordPreference.setChecked(speakPasswordEnabled);
+
         // Touch exploration enabled.
         if (AccessibilityManager.getInstance(getActivity()).isEnabled()) {
             mSystemsCategory.addPreference(mToggleTouchExplorationPreference);