Settings: Add support for Lock clock (part 1 of 3)

Change-Id: I13556ce58902e4c6151872c0f0aebe2152677de4

3 files changed, 45 insertions, 0 deletions

diff --git a/res/values/strings.xml b/res/values/strings.xml
index a589807..586102a 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -5085,5 +5085,9 @@
     <string name="sms_security_check_limit_summary">Display an alert dialog to prevent applications from sending SMS messages too frequently. Current limit: %d messages in 15 minutes</string>
     <string name="sms_security_check_limit_default">30 (Default)</string>
 
+    <!--- Lock clock -->
+    <string name="lock_clock_title">Lock clock widget</string>
+    <string name="lock_clock_summary">View or change how the Lock clock widgets will display</string>
+
     <!-- **** CYANOGENMOD ADDITIONS END **** -->
 </resources>
diff --git a/res/xml/system_settings.xml b/res/xml/system_settings.xml
index c28af49..703c6f7 100644
--- a/res/xml/system_settings.xml
+++ b/res/xml/system_settings.xml
@@ -39,6 +39,16 @@
         android:title="@string/power_menu_title"
         android:fragment="com.android.settings.cyanogenmod.PowerMenu" />
 
+    <!-- Lock clock -->
+    <PreferenceScreen
+        android:key="lock_clock"
+        android:title="@string/lock_clock_title"
+        android:summary="@string/lock_clock_summary">
+        <intent android:action="android.intent.action.MAIN"
+                android:targetPackage="com.cyanogenmod.lockclock"
+                android:targetClass="com.cyanogenmod.lockclock.preference.Preferences" />
+    </PreferenceScreen>
+
     <PreferenceScreen
         android:key="notification_pulse"
         android:title="@string/notification_pulse_title"
diff --git a/src/com/android/settings/cyanogenmod/SystemSettings.java b/src/com/android/settings/cyanogenmod/SystemSettings.java
index 703a10d..5a9ffc2 100644
--- a/src/com/android/settings/cyanogenmod/SystemSettings.java
+++ b/src/com/android/settings/cyanogenmod/SystemSettings.java
@@ -17,22 +17,29 @@
 package com.android.settings.cyanogenmod;
 
 import android.content.Context;
+import android.content.pm.PackageManager.NameNotFoundException;
 import android.os.Bundle;
 import android.os.RemoteException;
 import android.os.ServiceManager;
+import android.preference.Preference;
 import android.preference.PreferenceScreen;
 import android.provider.Settings;
+import android.util.Log;
 import android.view.IWindowManager;
 
 import com.android.settings.R;
 import com.android.settings.SettingsPreferenceFragment;
 
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
 public class SystemSettings extends SettingsPreferenceFragment {
     private static final String TAG = "SystemSettings";
 
     private static final String KEY_NOTIFICATION_PULSE = "notification_pulse";
     private static final String KEY_BATTERY_LIGHT = "battery_light";
     private static final String KEY_HARDWARE_KEYS = "hardware_keys";
+    private static final String KEY_LOCK_CLOCK = "lock_clock";
 
     private PreferenceScreen mNotificationPulse;
     private PreferenceScreen mBatteryPulse;
@@ -42,6 +49,11 @@ public class SystemSettings extends SettingsPreferenceFragment {
         super.onCreate(savedInstanceState);
 
         addPreferencesFromResource(R.xml.system_settings);
+
+        // Dont display the lock clock preference if its not installed
+        removePreferenceIfPackageNotInstalled(findPreference(KEY_LOCK_CLOCK));
+
+        // Notification lights
         mNotificationPulse = (PreferenceScreen) findPreference(KEY_NOTIFICATION_PULSE);
         if (mNotificationPulse != null) {
             if (!getResources().getBoolean(com.android.internal.R.bool.config_intrusiveNotificationLed)) {
@@ -51,6 +63,7 @@ public class SystemSettings extends SettingsPreferenceFragment {
             }
         }
 
+        // Battery lights
         mBatteryPulse = (PreferenceScreen) findPreference(KEY_BATTERY_LIGHT);
         if (mBatteryPulse != null) {
             if (getResources().getBoolean(
@@ -103,4 +116,22 @@ public class SystemSettings extends SettingsPreferenceFragment {
         super.onPause();
     }
 
+    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 {
+                getPackageManager().getPackageInfo(packageName, 0);
+            } catch (NameNotFoundException e) {
+                Log.e(TAG,"package "+packageName+" not installed, hiding preference.");
+                getPreferenceScreen().removePreference(preference);
+                return true;
+            }
+        }
+        return false;
+    }
+
 }