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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.keyguard;
import android.app.Presentation;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnDismissListener;
import android.graphics.Point;
import android.media.MediaRouter;
import android.media.MediaRouter.RouteInfo;
import android.os.Bundle;
import android.util.Slog;
import android.view.Display;
import android.view.View;
import android.view.WindowManager;
public class KeyguardDisplayManager {
protected static final String TAG = "KeyguardDisplayManager";
private static boolean DEBUG = KeyguardConstants.DEBUG;
Presentation mPresentation;
private MediaRouter mMediaRouter;
private Context mContext;
private boolean mShowing;
public KeyguardDisplayManager(Context context) {
mContext = context;
mMediaRouter = (MediaRouter) mContext.getSystemService(Context.MEDIA_ROUTER_SERVICE);
}
public void show() {
if (!mShowing) {
if (DEBUG) Slog.v(TAG, "show");
mMediaRouter.addCallback(MediaRouter.ROUTE_TYPE_REMOTE_DISPLAY,
mMediaRouterCallback, MediaRouter.CALLBACK_FLAG_PASSIVE_DISCOVERY);
updateDisplays(true);
}
mShowing = true;
}
public void hide() {
if (mShowing) {
if (DEBUG) Slog.v(TAG, "hide");
mMediaRouter.removeCallback(mMediaRouterCallback);
updateDisplays(false);
}
mShowing = false;
}
private final MediaRouter.SimpleCallback mMediaRouterCallback =
new MediaRouter.SimpleCallback() {
@Override
public void onRouteSelected(MediaRouter router, int type, RouteInfo info) {
if (DEBUG) Slog.d(TAG, "onRouteSelected: type=" + type + ", info=" + info);
updateDisplays(mShowing);
}
@Override
public void onRouteUnselected(MediaRouter router, int type, RouteInfo info) {
if (DEBUG) Slog.d(TAG, "onRouteUnselected: type=" + type + ", info=" + info);
updateDisplays(mShowing);
}
@Override
public void onRoutePresentationDisplayChanged(MediaRouter router, RouteInfo info) {
if (DEBUG) Slog.d(TAG, "onRoutePresentationDisplayChanged: info=" + info);
updateDisplays(mShowing);
}
};
private OnDismissListener mOnDismissListener = new OnDismissListener() {
@Override
public void onDismiss(DialogInterface dialog) {
mPresentation = null;
}
};
protected void updateDisplays(boolean showing) {
if (showing) {
MediaRouter.RouteInfo route = mMediaRouter.getSelectedRoute(
MediaRouter.ROUTE_TYPE_REMOTE_DISPLAY);
boolean useDisplay = route != null
&& route.getPlaybackType() == MediaRouter.RouteInfo.PLAYBACK_TYPE_REMOTE;
Display presentationDisplay = useDisplay ? route.getPresentationDisplay() : null;
if (mPresentation != null && mPresentation.getDisplay() != presentationDisplay) {
if (DEBUG) Slog.v(TAG, "Display gone: " + mPresentation.getDisplay());
mPresentation.dismiss();
mPresentation = null;
}
if (mPresentation == null && presentationDisplay != null) {
if (DEBUG) Slog.i(TAG, "Keyguard enabled on display: " + presentationDisplay);
mPresentation = new KeyguardPresentation(mContext, presentationDisplay,
R.style.keyguard_presentation_theme);
mPresentation.setOnDismissListener(mOnDismissListener);
try {
mPresentation.show();
} catch (WindowManager.InvalidDisplayException ex) {
Slog.w(TAG, "Invalid display:", ex);
mPresentation = null;
}
}
} else {
if (mPresentation != null) {
mPresentation.dismiss();
mPresentation = null;
}
}
}
private final static class KeyguardPresentation extends Presentation {
private static final int VIDEO_SAFE_REGION = 80; // Percentage of display width & height
private static final int MOVE_CLOCK_TIMEOUT = 10000; // 10s
private View mClock;
private int mUsableWidth;
private int mUsableHeight;
private int mMarginTop;
private int mMarginLeft;
Runnable mMoveTextRunnable = new Runnable() {
@Override
public void run() {
int x = mMarginLeft + (int) (Math.random() * (mUsableWidth - mClock.getWidth()));
int y = mMarginTop + (int) (Math.random() * (mUsableHeight - mClock.getHeight()));
mClock.setTranslationX(x);
mClock.setTranslationY(y);
mClock.postDelayed(mMoveTextRunnable, MOVE_CLOCK_TIMEOUT);
}
};
public KeyguardPresentation(Context context, Display display, int theme) {
super(context, display, theme);
getWindow().setType(WindowManager.LayoutParams.TYPE_KEYGUARD_DIALOG);
}
@Override
public void onDetachedFromWindow() {
mClock.removeCallbacks(mMoveTextRunnable);
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Point p = new Point();
getDisplay().getSize(p);
mUsableWidth = VIDEO_SAFE_REGION * p.x/100;
mUsableHeight = VIDEO_SAFE_REGION * p.y/100;
mMarginLeft = (100 - VIDEO_SAFE_REGION) * p.x / 200;
mMarginTop = (100 - VIDEO_SAFE_REGION) * p.y / 200;
setContentView(R.layout.keyguard_presentation);
mClock = findViewById(R.id.clock);
// Avoid screen burn in
mClock.post(mMoveTextRunnable);
}
}
}
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