Settings: Add CM Updater

Squashed commit of the following:

Author: DvTonder <david.vantonder@gmail.com>
Settings: Add Updater and Changelog
Change-Id: I8cf09962d9ba667bcdba78d7214fd6b5bb0feedc

Author: Jorge Ruesga <jorge@ruesga.com>
settings: hide settings of disabled components

Change-Id: I977bd0c9668b479773802f99d03ecd1072e12f75
JIRA: CYAN-3552
Issue: https://jira.cyanogenmod.org/browse/CYAN-3552
Signed-off-by: Jorge Ruesga <jorge@ruesga.com>

Author: Michael Bestas <mikeioannina@gmail.com>
Move CM updater & remove summary

* Move CM Updater to the top, like the fota app
* Use android's default 'System updates' empty summary
Change-Id: Ia3358397be97bc0ac19dd73598d053eb29efe31d

Change-Id: I8cf09962d9ba667bcdba78d7214fd6b5bb0feedc

1 files changed, 33 insertions, 0 deletions

diff --git a/src/com/android/settings/DeviceInfoSettings.java b/src/com/android/settings/DeviceInfoSettings.java
index 3dc6446..5921fef 100644
--- a/src/com/android/settings/DeviceInfoSettings.java
+++ b/src/com/android/settings/DeviceInfoSettings.java
@@ -20,7 +20,9 @@ import android.app.Activity;
 import android.content.Context;
 import android.content.Intent;
 import android.content.pm.ApplicationInfo;
+import android.content.pm.PackageInfo;
 import android.content.pm.PackageManager;
+import android.content.pm.PackageManager.NameNotFoundException;
 import android.content.pm.ResolveInfo;
 import android.os.Build;
 import android.os.Bundle;
@@ -85,6 +87,7 @@ public class DeviceInfoSettings extends SettingsPreferenceFragment implements In
     private static final String KEY_MOD_VERSION = "mod_version";
     private static final String KEY_MOD_BUILD_DATE = "build_date";
     private static final String KEY_MOD_API_LEVEL = "mod_api_level";
+    private static final String KEY_CM_UPDATES = "cm_updates";
 
     static final int TAPS_TO_BE_A_DEVELOPER = 7;
 
@@ -150,6 +153,13 @@ public class DeviceInfoSettings extends SettingsPreferenceFragment implements In
         removePreferenceIfPropertyMissing(getPreferenceScreen(), KEY_SELINUX_STATUS,
                 PROPERTY_SELINUX_STATUS);
 
+        // Only the owner should see the Updater settings, if it exists
+        if (UserHandle.myUserId() == UserHandle.USER_OWNER) {
+            removePreferenceIfPackageNotInstalled(findPreference(KEY_CM_UPDATES));
+        } else {
+            getPreferenceScreen().removePreference(findPreference(KEY_CM_UPDATES));
+        }
+
         // Remove Safety information preference if PROPERTY_URL_SAFETYLEGAL is not set
         removePreferenceIfPropertyMissing(getPreferenceScreen(), KEY_SAFETY_LEGAL,
                 PROPERTY_URL_SAFETYLEGAL);
@@ -541,5 +551,28 @@ public class DeviceInfoSettings extends SettingsPreferenceFragment implements In
             }
         };
 
+    private boolean removePreferenceIfPackageNotInstalled(Preference preference) {
+        String intentUri=((PreferenceScreen) preference).getIntent().toUri(1);
+        Pattern pattern = Pattern.compile("component=([^/]+)/");
+        Matcher matcher = pattern.matcher(intentUri);
+
+        String packageName=matcher.find()?matcher.group(1):null;
+        if(packageName != null) {
+            try {
+                PackageInfo pi = getPackageManager().getPackageInfo(packageName,
+                        PackageManager.GET_ACTIVITIES);
+                if (!pi.applicationInfo.enabled) {
+                    Log.e(LOG_TAG,"package "+packageName+" is disabled, hiding preference.");
+                    getPreferenceScreen().removePreference(preference);
+                    return true;
+                }
+            } catch (NameNotFoundException e) {
+                Log.e(LOG_TAG,"package "+packageName+" not installed, hiding preference.");
+                getPreferenceScreen().removePreference(preference);
+                return true;
+            }
+        }
+        return false;
+    }
 }