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/*
* Copyright (C) 2013 The Android Open Source 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.systemui.settings;
import android.app.Dialog;
import android.content.Context;
import android.content.res.Resources;
import android.os.Bundle;
import android.os.Handler;
import android.view.Gravity;
import android.view.KeyEvent;
import android.view.Window;
import android.view.WindowManager;
import android.widget.ImageView;
import com.android.systemui.R;
/** A dialog that provides controls for adjusting the screen brightness. */
public class BrightnessDialog extends Dialog implements
BrightnessController.BrightnessStateChangeCallback {
private static final String TAG = "BrightnessDialog";
private static final boolean DEBUG = false;
protected Handler mHandler = new Handler();
private BrightnessController mBrightnessController;
private final int mBrightnessDialogLongTimeout;
private final int mBrightnessDialogShortTimeout;
private final Runnable mDismissDialogRunnable = new Runnable() {
public void run() {
if (BrightnessDialog.this.isShowing()) {
BrightnessDialog.this.dismiss();
}
};
};
public BrightnessDialog(Context ctx) {
super(ctx);
Resources r = ctx.getResources();
mBrightnessDialogLongTimeout =
r.getInteger(R.integer.quick_settings_brightness_dialog_long_timeout);
mBrightnessDialogShortTimeout =
r.getInteger(R.integer.quick_settings_brightness_dialog_short_timeout);
}
/**
* Create the brightness dialog and any resources that are used for the
* entire lifetime of the dialog.
*/
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Window window = getWindow();
window.setGravity(Gravity.TOP);
WindowManager.LayoutParams lp = window.getAttributes();
// Offset from the top
lp.y = getContext().getResources().getDimensionPixelOffset(
com.android.internal.R.dimen.volume_panel_top);
lp.type = WindowManager.LayoutParams.TYPE_VOLUME_OVERLAY;
lp.privateFlags |=
WindowManager.LayoutParams.PRIVATE_FLAG_SHOW_FOR_ALL_USERS;
window.setAttributes(lp);
window.clearFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND);
window.requestFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.quick_settings_brightness_dialog);
setCanceledOnTouchOutside(true);
}
@Override
protected void onStart() {
super.onStart();
mBrightnessController = new BrightnessController(getContext(),
(ImageView) findViewById(R.id.brightness_icon),
(ToggleSlider) findViewById(R.id.brightness_slider));
dismissBrightnessDialog(mBrightnessDialogLongTimeout);
mBrightnessController.addStateChangedCallback(this);
}
@Override
protected void onStop() {
super.onStop();
mBrightnessController.unregisterCallbacks();
removeAllBrightnessDialogCallbacks();
}
public void onBrightnessLevelChanged() {
dismissBrightnessDialog(mBrightnessDialogShortTimeout);
}
private void dismissBrightnessDialog(int timeout) {
removeAllBrightnessDialogCallbacks();
mHandler.postDelayed(mDismissDialogRunnable, timeout);
}
private void removeAllBrightnessDialogCallbacks() {
mHandler.removeCallbacks(mDismissDialogRunnable);
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN ||
keyCode == KeyEvent.KEYCODE_VOLUME_UP ||
keyCode == KeyEvent.KEYCODE_VOLUME_MUTE) {
dismiss();
}
return super.onKeyDown(keyCode, event);
}
}
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