1 files changed, 155 insertions, 0 deletions
diff --git a/src/com/android/settings/cyanogenmod/BaseSystemSettingSwitchBar.java b/src/com/android/settings/cyanogenmod/BaseSystemSettingSwitchBar.java
new file mode 100644
index 0000000..22f5277
--- /dev/null
+++ b/src/com/android/settings/cyanogenmod/BaseSystemSettingSwitchBar.java
@@ -0,0 +1,155 @@
+/*
+* Copyright (C) 2014 The CyanogenMod Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+package com.android.settings.cyanogenmod;
+
+import android.content.ContentResolver;
+import android.content.Context;
+import android.database.ContentObserver;
+import android.net.Uri;
+import android.os.Handler;
+import android.provider.Settings;
+import android.widget.Switch;
+import com.android.settings.widget.SwitchBar;
+
+public class BaseSystemSettingSwitchBar implements SwitchBar.OnSwitchChangeListener  {
+    private Context mContext;
+    private SwitchBar mSwitchBar;
+    private SettingsObserver mSettingsObserver;
+    private boolean mListeningToOnSwitchChange = false;
+
+    private boolean mStateMachineEvent;
+
+    private final String mSettingKey;
+    private final int mDefaultState;
+
+    private final SwitchBarChangeCallback mCallback;
+    public interface SwitchBarChangeCallback {
+        public void onEnablerChanged(boolean isEnabled);
+    }
+
+    public BaseSystemSettingSwitchBar(Context context, SwitchBar switchBar, String key,
+                                      boolean defaultState, SwitchBarChangeCallback callback) {
+        mContext = context;
+        mSwitchBar = switchBar;
+        mSettingKey = key;
+        mDefaultState = defaultState ? 1 : 0;
+        mCallback = callback;
+        mSettingsObserver = new SettingsObserver(new Handler());
+        setupSwitchBar();
+    }
+
+    public void setupSwitchBar() {
+        setSwitchState();
+        if (!mListeningToOnSwitchChange) {
+            mSwitchBar.addOnSwitchChangeListener(this);
+            mListeningToOnSwitchChange = true;
+        }
+        mSwitchBar.show();
+    }
+
+    public void teardownSwitchBar() {
+        if (mListeningToOnSwitchChange) {
+            mSwitchBar.removeOnSwitchChangeListener(this);
+            mListeningToOnSwitchChange = false;
+        }
+        mSwitchBar.hide();
+    }
+
+    public void resume(Context context) {
+        mContext = context;
+        if (!mListeningToOnSwitchChange) {
+            mSwitchBar.addOnSwitchChangeListener(this);
+            mSettingsObserver.observe();
+
+            mListeningToOnSwitchChange = true;
+        }
+    }
+
+    public void pause() {
+        if (mListeningToOnSwitchChange) {
+            mSwitchBar.removeOnSwitchChangeListener(this);
+            mSettingsObserver.unobserve();
+
+            mListeningToOnSwitchChange = false;
+        }
+    }
+
+    private void setSwitchBarChecked(boolean checked) {
+        mStateMachineEvent = true;
+        mSwitchBar.setChecked(checked);
+        mStateMachineEvent = false;
+        if (mCallback != null) {
+            mCallback.onEnablerChanged(checked);
+        }
+    }
+
+    private void setSwitchState() {
+        boolean enabled = Settings.System.getInt(mContext.getContentResolver(),
+                mSettingKey, mDefaultState) == 1;
+        mStateMachineEvent = true;
+        setSwitchBarChecked(enabled);
+        mStateMachineEvent = false;
+    }
+
+    @Override
+    public void onSwitchChanged(Switch switchView, boolean isChecked) {
+        //Do nothing if called as a result of a state machine event
+        if (mStateMachineEvent) {
+            return;
+        }
+
+        // Handle a switch change
+        Settings.System.putInt(mContext.getContentResolver(),
+                mSettingKey, isChecked ? 1 : 0);
+
+        if (mCallback != null) {
+            mCallback.onEnablerChanged(isChecked);
+        }
+    }
+
+    class SettingsObserver extends ContentObserver {
+        SettingsObserver(Handler handler) {
+            super(handler);
+        }
+
+        void observe() {
+            ContentResolver resolver = mContext.getContentResolver();
+            resolver.registerContentObserver(Settings.System.getUriFor(
+                    mSettingKey), false, this);
+            update();
+        }
+
+        void unobserve() {
+            ContentResolver resolver = mContext.getContentResolver();
+            resolver.unregisterContentObserver(this);
+        }
+
+        @Override
+        public void onChange(boolean selfChange) {
+            update();
+        }
+
+        @Override
+        public void onChange(boolean selfChange, Uri uri) {
+            update();
+        }
+
+        public void update() {
+            setSwitchState();
+        }
+    }
+}