Remove the lockscreen widget setting

Bug: 14087729
Change-Id: Ia276411f7622fe1211528ab779a7099bb20800d4

res/xml/security_settings_biometric_weak.xml

@@ -51,10 +51,6 @@
             android:key="power_button_instantly_locks"
             android:title="@string/lockpattern_settings_enable_power_button_instantly_locks"/>
 
-        <CheckBoxPreference
-            android:key="keyguard_enable_widgets"
-            android:title="@string/security_enable_widgets_title"/>
-
         <PreferenceScreen
             android:fragment="com.android.settings.OwnerInfoSettings"
             android:key="owner_info_settings"

res/xml/security_settings_chooser.xml

@@ -26,10 +26,6 @@
             android:summary="@string/unlock_set_unlock_mode_none"
             android:persistent="false"/>
 
-        <CheckBoxPreference
-            android:key="keyguard_enable_widgets"
-            android:title="@string/security_enable_widgets_title"/>
-
         <PreferenceScreen
             android:fragment="com.android.settings.OwnerInfoSettings"
             android:key="owner_info_settings"

res/xml/security_settings_lockscreen.xml

@@ -26,10 +26,6 @@
             android:summary="@string/unlock_set_unlock_mode_off"
             android:persistent="false"/>
 
-        <CheckBoxPreference
-            android:key="keyguard_enable_widgets"
-            android:title="@string/security_enable_widgets_title"/>
-
         <PreferenceScreen
             android:fragment="com.android.settings.OwnerInfoSettings"
             android:key="owner_info_settings"

res/xml/security_settings_password.xml

@@ -38,10 +38,6 @@
             android:key="power_button_instantly_locks"
             android:title="@string/lockpattern_settings_enable_power_button_instantly_locks"/>
 
-        <CheckBoxPreference
-            android:key="keyguard_enable_widgets"
-            android:title="@string/security_enable_widgets_title"/>
-
         <PreferenceScreen
             android:fragment="com.android.settings.OwnerInfoSettings"
             android:key="owner_info_settings"

res/xml/security_settings_pattern.xml

@@ -42,10 +42,6 @@
             android:key="power_button_instantly_locks"
             android:title="@string/lockpattern_settings_enable_power_button_instantly_locks"/>
 
-        <CheckBoxPreference
-            android:key="keyguard_enable_widgets"
-            android:title="@string/security_enable_widgets_title"/>
-
         <PreferenceScreen
             android:fragment="com.android.settings.OwnerInfoSettings"
             android:key="owner_info_settings"

res/xml/security_settings_pin.xml

@@ -38,10 +38,6 @@
             android:key="power_button_instantly_locks"
             android:title="@string/lockpattern_settings_enable_power_button_instantly_locks"/>
 
-        <CheckBoxPreference
-            android:key="keyguard_enable_widgets"
-            android:title="@string/security_enable_widgets_title"/>
-
         <PreferenceScreen
             android:fragment="com.android.settings.OwnerInfoSettings"
             android:key="owner_info_settings"

src/com/android/settings/SecuritySettings.java

@@ -75,7 +75,6 @@ public class SecuritySettings extends RestrictedSettingsFragment
     private static final String KEY_DEVICE_ADMIN_CATEGORY = "device_admin_category";
     private static final String KEY_LOCK_AFTER_TIMEOUT = "lock_after_timeout";
     private static final String KEY_OWNER_INFO_SETTINGS = "owner_info_settings";
-    private static final String KEY_ENABLE_WIDGETS = "keyguard_enable_widgets";
 
     private static final int SET_OR_CHANGE_LOCK_METHOD_REQUEST = 123;
     private static final int CONFIRM_EXISTING_FOR_BIOMETRIC_WEAK_IMPROVE_REQUEST = 124;
@@ -111,7 +110,6 @@ public class SecuritySettings extends RestrictedSettingsFragment
     private DialogInterface mWarnInstallApps;
     private CheckBoxPreference mToggleVerifyApps;
     private CheckBoxPreference mPowerButtonInstantlyLocks;
-    private CheckBoxPreference mEnableKeyguardWidgets;
 
     private boolean mIsPrimary;
 
@@ -270,31 +268,6 @@ public class SecuritySettings extends RestrictedSettingsFragment
             }
         }
 
-        // Enable or disable keyguard widget checkbox based on DPM state
-        mEnableKeyguardWidgets = (CheckBoxPreference) root.findPreference(KEY_ENABLE_WIDGETS);
-        if (mEnableKeyguardWidgets != null) {
-            if (ActivityManager.isLowRamDeviceStatic()
-                    || mLockPatternUtils.isLockScreenDisabled()) {
-                // Widgets take a lot of RAM, so disable them on low-memory devices
-                PreferenceGroup securityCategory
-                        = (PreferenceGroup) root.findPreference(KEY_SECURITY_CATEGORY);
-                if (securityCategory != null) {
-                    securityCategory.removePreference(root.findPreference(KEY_ENABLE_WIDGETS));
-                    mEnableKeyguardWidgets = null;
-                }
-            } else {
-                final boolean disabled = (0 != (mDPM.getKeyguardDisabledFeatures(null)
-                        & DevicePolicyManager.KEYGUARD_DISABLE_WIDGETS_ALL));
-                if (disabled) {
-                    mEnableKeyguardWidgets.setSummary(
-                            R.string.security_enable_widgets_disabled_summary);
-                } else {
-                    mEnableKeyguardWidgets.setSummary("");
-                }
-                mEnableKeyguardWidgets.setEnabled(!disabled);
-            }
-        }
-
         // Show password
         mShowPassword = (CheckBoxPreference) root.findPreference(KEY_SHOW_PASSWORD);
         mResetCredentials = root.findPreference(KEY_RESET_CREDENTIALS);
@@ -504,10 +477,6 @@ public class SecuritySettings extends RestrictedSettingsFragment
         if (mResetCredentials != null) {
             mResetCredentials.setEnabled(!mKeyStore.isEmpty());
         }
-
-        if (mEnableKeyguardWidgets != null) {
-            mEnableKeyguardWidgets.setChecked(lockPatternUtils.getWidgetsEnabled());
-        }
     }
 
     @Override
@@ -561,8 +530,6 @@ public class SecuritySettings extends RestrictedSettingsFragment
             lockPatternUtils.setVisiblePatternEnabled(isToggled(preference));
         } else if (KEY_POWER_INSTANTLY_LOCKS.equals(key)) {
             lockPatternUtils.setPowerButtonInstantlyLocks(isToggled(preference));
-        } else if (KEY_ENABLE_WIDGETS.equals(key)) {
-            lockPatternUtils.setWidgetsEnabled(mEnableKeyguardWidgets.isChecked());
         } else if (preference == mShowPassword) {
             Settings.System.putInt(getContentResolver(), Settings.System.TEXT_SHOW_PASSWORD,
                     mShowPassword.isChecked() ? 1 : 0);
@@ -713,24 +680,6 @@ public class SecuritySettings extends RestrictedSettingsFragment
                 result.add(data);
             }
 
-            LockPatternUtils lockPatternUtils = new LockPatternUtils(context);
-
-            if (!ActivityManager.isLowRamDeviceStatic()
-                    && !lockPatternUtils.isLockScreenDisabled()) {
-                DevicePolicyManager dpm = (DevicePolicyManager)
-                        context.getSystemService(Context.DEVICE_POLICY_SERVICE);
-
-                final boolean disabled = (0 != (dpm.getKeyguardDisabledFeatures(null)
-                        & DevicePolicyManager.KEYGUARD_DISABLE_WIDGETS_ALL));
-
-                if (disabled) {
-                    data = new SearchIndexableRaw(context);
-                    data.title = res.getString(R.string.security_enable_widgets_disabled_summary);
-                    data.screenTitle = screenTitle;
-                    result.add(data);
-                }
-            }
-
             // Credential storage
             final UserManager um = (UserManager) context.getSystemService(Context.USER_SERVICE);
 
@@ -771,12 +720,6 @@ public class SecuritySettings extends RestrictedSettingsFragment
                 keys.add(KEY_SIM_LOCK);
             }
 
-            if (ActivityManager.isLowRamDeviceStatic()
-                    || lockPatternUtils.isLockScreenDisabled()) {
-                // Widgets take a lot of RAM, so disable them on low-memory devices
-                keys.add(KEY_ENABLE_WIDGETS);
-            }
-
             final UserManager um = (UserManager) context.getSystemService(Context.USER_SERVICE);
             if (um.hasUserRestriction(UserManager.DISALLOW_CONFIG_CREDENTIALS)) {
                 keys.add(KEY_CREDENTIALS_MANAGER);