/*
* Copyright (C) 2007 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.internal.policy.impl;
import com.android.internal.R;
import android.content.Context;
import android.content.pm.ActivityInfo;
import android.graphics.PixelFormat;
import android.graphics.Canvas;
import android.util.Log;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewManager;
import android.view.WindowManager;
import android.widget.FrameLayout;
/**
* Manages creating, showing, hiding and resetting the keyguard. Calls back
* via {@link com.android.internal.policy.impl.KeyguardViewCallback} to poke
* the wake lock and report that the keyguard is done, which is in turn,
* reported to this class by the current {@link KeyguardViewBase}.
*/
public class KeyguardViewManager implements KeyguardWindowController {
private final static boolean DEBUG = false;
private static String TAG = "KeyguardViewManager";
private final Context mContext;
private final ViewManager mViewManager;
private final KeyguardViewCallback mCallback;
private final KeyguardViewProperties mKeyguardViewProperties;
private final KeyguardUpdateMonitor mUpdateMonitor;
private WindowManager.LayoutParams mWindowLayoutParams;
private boolean mNeedsInput = false;
private FrameLayout mKeyguardHost;
private KeyguardViewBase mKeyguardView;
private boolean mScreenOn = false;
/**
* @param context Used to create views.
* @param viewManager Keyguard will be attached to this.
* @param callback Used to notify of changes.
*/
public KeyguardViewManager(Context context, ViewManager viewManager,
KeyguardViewCallback callback, KeyguardViewProperties keyguardViewProperties, KeyguardUpdateMonitor updateMonitor) {
mContext = context;
mViewManager = viewManager;
mCallback = callback;
mKeyguardViewProperties = keyguardViewProperties;
mUpdateMonitor = updateMonitor;
}
/**
* Helper class to host the keyguard view.
*/
private static class KeyguardViewHost extends FrameLayout {
private final KeyguardViewCallback mCallback;
private KeyguardViewHost(Context context, KeyguardViewCallback callback) {
super(context);
mCallback = callback;
}
@Override
protected void dispatchDraw(Canvas canvas) {
super.dispatchDraw(canvas);
mCallback.keyguardDoneDrawing();
}
}
/**
* Show the keyguard. Will handle creating and attaching to the view manager
* lazily.
*/
public synchronized void show() {
if (DEBUG) Log.d(TAG, "show(); mKeyguardView==" + mKeyguardView);
if (mKeyguardHost == null) {
if (DEBUG) Log.d(TAG, "keyguard host is null, creating it...");
mKeyguardHost = new KeyguardViewHost(mContext, mCallback);
final int stretch = ViewGroup.LayoutParams.FILL_PARENT;
int flags = WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN
| WindowManager.LayoutParams.FLAG_SHOW_WALLPAPER
| WindowManager.LayoutParams.FLAG_KEEP_SURFACE_WHILE_ANIMATING
/*| WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN
| WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR*/ ;
if (!mNeedsInput) {
flags |= WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM;
}
WindowManager.LayoutParams lp = new WindowManager.LayoutParams(
stretch, stretch, WindowManager.LayoutParams.TYPE_KEYGUARD,
flags, PixelFormat.TRANSLUCENT);
lp.softInputMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN;
lp.windowAnimations = com.android.internal.R.style.Animation_LockScreen;
lp.screenOrientation = ActivityInfo.SCREEN_ORIENTATION_NOSENSOR;
lp.setTitle("Keyguard");
mWindowLayoutParams = lp;
mViewManager.addView(mKeyguardHost, lp);
}
if (mKeyguardView == null) {
if (DEBUG) Log.d(TAG, "keyguard view is null, creating it...");
mKeyguardView = mKeyguardViewProperties.createKeyguardView(mContext, mUpdateMonitor, this);
mKeyguardView.setId(R.id.lock_screen);
mKeyguardView.setCallback(mCallback);
final ViewGroup.LayoutParams lp = new FrameLayout.LayoutParams(
ViewGroup.LayoutParams.FILL_PARENT,
ViewGroup.LayoutParams.FILL_PARENT);
mKeyguardHost.addView(mKeyguardView, lp);
if (mScreenOn) {
mKeyguardView.onScreenTurnedOn();
}
}
mKeyguardHost.setVisibility(View.VISIBLE);
mKeyguardView.requestFocus();
}
public void setNeedsInput(boolean needsInput) {
mNeedsInput = needsInput;
if (mWindowLayoutParams != null) {
if (needsInput) {
mWindowLayoutParams.flags &=
~WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM;
} else {
mWindowLayoutParams.flags |=
WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM;
}
mViewManager.updateViewLayout(mKeyguardHost, mWindowLayoutParams);
}
}
/**
* Reset the state of the view.
*/
public synchronized void reset() {
if (DEBUG) Log.d(TAG, "reset()");
if (mKeyguardView != null) {
mKeyguardView.reset();
}
}
public synchronized void onScreenTurnedOff() {
if (DEBUG) Log.d(TAG, "onScreenTurnedOff()");
mScreenOn = false;
if (mKeyguardView != null) {
mKeyguardView.onScreenTurnedOff();
}
}
public synchronized void onScreenTurnedOn() {
if (DEBUG) Log.d(TAG, "onScreenTurnedOn()");
mScreenOn = true;
if (mKeyguardView != null) {
mKeyguardView.onScreenTurnedOn();
}
}
public synchronized void verifyUnlock() {
if (DEBUG) Log.d(TAG, "verifyUnlock()");
show();
mKeyguardView.verifyUnlock();
}
/**
* A key has woken the device. We use this to potentially adjust the state
* of the lock screen based on the key.
*
* The 'Tq' suffix is per the documentation in {@link android.view.WindowManagerPolicy}.
* Be sure not to take any action that takes a long time; any significant
* action should be posted to a handler.
*
* @param keyCode The wake key.
*/
public boolean wakeWhenReadyTq(int keyCode) {
if (DEBUG) Log.d(TAG, "wakeWhenReady(" + keyCode + ")");
if (mKeyguardView != null) {
mKeyguardView.wakeWhenReadyTq(keyCode);
return true;
} else {
Log.w(TAG, "mKeyguardView is null in wakeWhenReadyTq");
return false;
}
}
/**
* Hides the keyguard view
*/
public synchronized void hide() {
if (DEBUG) Log.d(TAG, "hide()");
if (mKeyguardHost != null) {
mKeyguardHost.setVisibility(View.GONE);
// Don't do this right away, so we can let the view continue to animate
// as it goes away.
if (mKeyguardView != null) {
final KeyguardViewBase lastView = mKeyguardView;
mKeyguardView = null;
mKeyguardHost.postDelayed(new Runnable() {
public void run() {
synchronized (KeyguardViewManager.this) {
mKeyguardHost.removeView(lastView);
lastView.cleanUp();
}
}
}, 500);
}
}
}
/**
* @return Whether the keyguard is showing
*/
public synchronized boolean isShowing() {
return (mKeyguardHost != null && mKeyguardHost.getVisibility() == View.VISIBLE);
}
}