799 lines
		
	
	
		
			32 KiB
		
	
	
	
		
			Java
		
	
	
	
	
	
			
		
		
	
	
			799 lines
		
	
	
		
			32 KiB
		
	
	
	
		
			Java
		
	
	
	
	
	
| /*
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|  * Copyright (C) 2006 The Android Open Source Project
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|  *
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|  * Licensed under the Apache License, Version 2.0 (the "License");
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|  * you may not use this file except in compliance with the License.
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|  * You may obtain a copy of the License at
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|  *
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|  *      http://www.apache.org/licenses/LICENSE-2.0
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|  *
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|  * Unless required by applicable law or agreed to in writing, software
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|  * distributed under the License is distributed on an "AS IS" BASIS,
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|  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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|  * See the License for the specific language governing permissions and
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|  * limitations under the License.
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|  */
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| 
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| package android.view;
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| 
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| import android.content.Context;
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| import android.content.res.Configuration;
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| import android.graphics.Rect;
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| import android.os.IBinder;
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| import android.os.LocalPowerManager;
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| import android.view.animation.Animation;
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| 
 | |
| /**
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|  * This interface supplies all UI-specific behavior of the window manager.  An
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|  * instance of it is created by the window manager when it starts up, and allows
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|  * customization of window layering, special window types, key dispatching, and
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|  * layout.
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|  * 
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|  * <p>Because this provides deep interaction with the system window manager,
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|  * specific methods on this interface can be called from a variety of contexts
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|  * with various restrictions on what they can do.  These are encoded through
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|  * a suffixes at the end of a method encoding the thread the method is called
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|  * from and any locks that are held when it is being called; if no suffix
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|  * is attached to a method, then it is not called with any locks and may be
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|  * called from the main window manager thread or another thread calling into
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|  * the window manager.
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|  * 
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|  * <p>The current suffixes are:
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|  * 
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|  * <dl>
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|  * <dt> Ti <dd> Called from the input thread.  This is the thread that
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|  * collects pending input events and dispatches them to the appropriate window.
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|  * It may block waiting for events to be processed, so that the input stream is
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|  * properly serialized.
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|  * <dt> Tq <dd> Called from the low-level input queue thread.  This is the
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|  * thread that reads events out of the raw input devices and places them
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|  * into the global input queue that is read by the <var>Ti</var> thread.
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|  * This thread should not block for a long period of time on anything but the
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|  * key driver.
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|  * <dt> Lw <dd> Called with the main window manager lock held.  Because the
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|  * window manager is a very low-level system service, there are few other
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|  * system services you can call with this lock held.  It is explicitly okay to
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|  * make calls into the package manager and power manager; it is explicitly not
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|  * okay to make calls into the activity manager or most other services.  Note that
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|  * {@link android.content.Context#checkPermission(String, int, int)} and
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|  * variations require calling into the activity manager.
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|  * <dt> Li <dd> Called with the input thread lock held.  This lock can be
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|  * acquired by the window manager while it holds the window lock, so this is
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|  * even more restrictive than <var>Lw</var>.
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|  * </dl>
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|  * 
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|  * @hide
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|  */
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| public interface WindowManagerPolicy {
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|     // Policy flags.  These flags are also defined in frameworks/base/include/ui/Input.h.
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|     public final static int FLAG_WAKE = 0x00000001;
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|     public final static int FLAG_WAKE_DROPPED = 0x00000002;
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|     public final static int FLAG_SHIFT = 0x00000004;
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|     public final static int FLAG_CAPS_LOCK = 0x00000008;
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|     public final static int FLAG_ALT = 0x00000010;
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|     public final static int FLAG_ALT_GR = 0x00000020;
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|     public final static int FLAG_MENU = 0x00000040;
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|     public final static int FLAG_LAUNCHER = 0x00000080;
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|     public final static int FLAG_VIRTUAL = 0x00000100;
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| 
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|     public final static int FLAG_INJECTED = 0x01000000;
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|     public final static int FLAG_TRUSTED = 0x02000000;
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| 
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|     public final static int FLAG_WOKE_HERE = 0x10000000;
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|     public final static int FLAG_BRIGHT_HERE = 0x20000000;
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|     public final static int FLAG_PASS_TO_USER = 0x40000000;
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| 
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|     public final static boolean WATCH_POINTER = false;
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| 
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|     // flags for interceptKeyTq
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|     /**
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|      * Pass this event to the user / app.  To be returned from {@link #interceptKeyTq}.
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|      */
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|     public final static int ACTION_PASS_TO_USER = 0x00000001;
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| 
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|     /**
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|      * This key event should extend the user activity timeout and turn the lights on.
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|      * To be returned from {@link #interceptKeyTq}. Do not return this and
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|      * {@link #ACTION_GO_TO_SLEEP} or {@link #ACTION_PASS_TO_USER}.
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|      */
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|     public final static int ACTION_POKE_USER_ACTIVITY = 0x00000002;
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| 
 | |
|     /**
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|      * This key event should put the device to sleep (and engage keyguard if necessary)
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|      * To be returned from {@link #interceptKeyTq}.  Do not return this and
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|      * {@link #ACTION_POKE_USER_ACTIVITY} or {@link #ACTION_PASS_TO_USER}.
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|      */
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|     public final static int ACTION_GO_TO_SLEEP = 0x00000004;
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| 
 | |
|     /**
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|      * Interface to the Window Manager state associated with a particular
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|      * window.  You can hold on to an instance of this interface from the call
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|      * to prepareAddWindow() until removeWindow().
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|      */
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|     public interface WindowState {
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|         /**
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|          * Perform standard frame computation.  The result can be obtained with
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|          * getFrame() if so desired.  Must be called with the window manager
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|          * lock held.
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|          * 
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|          * @param parentFrame The frame of the parent container this window
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|          * is in, used for computing its basic position.
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|          * @param displayFrame The frame of the overall display in which this
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|          * window can appear, used for constraining the overall dimensions
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|          * of the window.
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|          * @param contentFrame The frame within the display in which we would
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|          * like active content to appear.  This will cause windows behind to
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|          * be resized to match the given content frame.
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|          * @param visibleFrame The frame within the display that the window
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|          * is actually visible, used for computing its visible insets to be
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|          * given to windows behind.
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|          * This can be used as a hint for scrolling (avoiding resizing)
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|          * the window to make certain that parts of its content
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|          * are visible.
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|          */
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|         public void computeFrameLw(Rect parentFrame, Rect displayFrame,
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|                 Rect contentFrame, Rect visibleFrame);
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| 
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|         /**
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|          * Retrieve the current frame of the window that has been assigned by
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|          * the window manager.  Must be called with the window manager lock held.
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|          * 
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|          * @return Rect The rectangle holding the window frame.
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|          */
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|         public Rect getFrameLw();
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| 
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|         /**
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|          * Retrieve the current frame of the window that is actually shown.
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|          * Must be called with the window manager lock held.
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|          * 
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|          * @return Rect The rectangle holding the shown window frame.
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|          */
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|         public Rect getShownFrameLw();
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| 
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|         /**
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|          * Retrieve the frame of the display that this window was last
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|          * laid out in.  Must be called with the
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|          * window manager lock held.
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|          * 
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|          * @return Rect The rectangle holding the display frame.
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|          */
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|         public Rect getDisplayFrameLw();
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| 
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|         /**
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|          * Retrieve the frame of the content area that this window was last
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|          * laid out in.  This is the area in which the content of the window
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|          * should be placed.  It will be smaller than the display frame to
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|          * account for screen decorations such as a status bar or soft
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|          * keyboard.  Must be called with the
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|          * window manager lock held.
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|          * 
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|          * @return Rect The rectangle holding the content frame.
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|          */
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|         public Rect getContentFrameLw();
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| 
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|         /**
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|          * Retrieve the frame of the visible area that this window was last
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|          * laid out in.  This is the area of the screen in which the window
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|          * will actually be fully visible.  It will be smaller than the
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|          * content frame to account for transient UI elements blocking it
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|          * such as an input method's candidates UI.  Must be called with the
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|          * window manager lock held.
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|          * 
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|          * @return Rect The rectangle holding the visible frame.
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|          */
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|         public Rect getVisibleFrameLw();
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| 
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|         /**
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|          * Returns true if this window is waiting to receive its given
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|          * internal insets from the client app, and so should not impact the
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|          * layout of other windows.
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|          */
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|         public boolean getGivenInsetsPendingLw();
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|         
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|         /**
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|          * Retrieve the insets given by this window's client for the content
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|          * area of windows behind it.  Must be called with the
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|          * window manager lock held.
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|          * 
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|          * @return Rect The left, top, right, and bottom insets, relative
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|          * to the window's frame, of the actual contents.
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|          */
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|         public Rect getGivenContentInsetsLw();
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| 
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|         /**
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|          * Retrieve the insets given by this window's client for the visible
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|          * area of windows behind it.  Must be called with the
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|          * window manager lock held.
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|          * 
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|          * @return Rect The left, top, right, and bottom insets, relative
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|          * to the window's frame, of the actual visible area.
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|          */
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|         public Rect getGivenVisibleInsetsLw();
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| 
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|         /**
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|          * Retrieve the current LayoutParams of the window.
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|          * 
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|          * @return WindowManager.LayoutParams The window's internal LayoutParams
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|          *         instance.
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|          */
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|         public WindowManager.LayoutParams getAttrs();
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| 
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|         /**
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|          * Get the layer at which this window's surface will be Z-ordered.
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|          */
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|         public int getSurfaceLayer();
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|         
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|         /**
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|          * Return the token for the application (actually activity) that owns 
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|          * this window.  May return null for system windows. 
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|          * 
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|          * @return An IApplicationToken identifying the owning activity.
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|          */
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|         public IApplicationToken getAppToken();
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| 
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|         /**
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|          * Return true if, at any point, the application token associated with 
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|          * this window has actually displayed any windows.  This is most useful 
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|          * with the "starting up" window to determine if any windows were 
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|          * displayed when it is closed. 
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|          * 
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|          * @return Returns true if one or more windows have been displayed, 
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|          *         else false.
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|          */
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|         public boolean hasAppShownWindows();
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| 
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|         /**
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|          * Is this window visible?  It is not visible if there is no
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|          * surface, or we are in the process of running an exit animation
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|          * that will remove the surface.
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|          */
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|         boolean isVisibleLw();
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|         
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|         /**
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|          * Like {@link #isVisibleLw}, but also counts a window that is currently
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|          * "hidden" behind the keyguard as visible.  This allows us to apply
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|          * things like window flags that impact the keyguard.
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|          */
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|         boolean isVisibleOrBehindKeyguardLw();
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|         
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|         /**
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|          * Is this window currently visible to the user on-screen?  It is 
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|          * displayed either if it is visible or it is currently running an 
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|          * animation before no longer being visible.  Must be called with the
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|          * window manager lock held.
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|          */
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|         boolean isDisplayedLw();
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| 
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|         /**
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|          * Returns true if this window has been shown on screen at some time in 
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|          * the past.  Must be called with the window manager lock held.
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|          * 
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|          * @return boolean
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|          */
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|         public boolean hasDrawnLw();
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| 
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|         /**
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|          * Can be called by the policy to force a window to be hidden,
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|          * regardless of whether the client or window manager would like
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|          * it shown.  Must be called with the window manager lock held.
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|          * Returns true if {@link #showLw} was last called for the window.
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|          */
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|         public boolean hideLw(boolean doAnimation);
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|         
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|         /**
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|          * Can be called to undo the effect of {@link #hideLw}, allowing a
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|          * window to be shown as long as the window manager and client would
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|          * also like it to be shown.  Must be called with the window manager
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|          * lock held.
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|          * Returns true if {@link #hideLw} was last called for the window.
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|          */
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|         public boolean showLw(boolean doAnimation);
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|     }
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| 
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|     /**
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|      * Bit mask that is set for all enter transition.
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|      */
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|     public final int TRANSIT_ENTER_MASK = 0x1000;
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|     
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|     /**
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|      * Bit mask that is set for all exit transitions.
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|      */
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|     public final int TRANSIT_EXIT_MASK = 0x2000;
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|     
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|     /** Not set up for a transition. */
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|     public final int TRANSIT_UNSET = -1;
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|     /** No animation for transition. */
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|     public final int TRANSIT_NONE = 0;
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|     /** Window has been added to the screen. */
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|     public final int TRANSIT_ENTER = 1 | TRANSIT_ENTER_MASK;
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|     /** Window has been removed from the screen. */
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|     public final int TRANSIT_EXIT = 2 | TRANSIT_EXIT_MASK;
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|     /** Window has been made visible. */
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|     public final int TRANSIT_SHOW = 3 | TRANSIT_ENTER_MASK;
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|     /** Window has been made invisible. */
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|     public final int TRANSIT_HIDE = 4 | TRANSIT_EXIT_MASK;
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|     /** The "application starting" preview window is no longer needed, and will
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|      * animate away to show the real window. */
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|     public final int TRANSIT_PREVIEW_DONE = 5;
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|     /** A window in a new activity is being opened on top of an existing one
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|      * in the same task. */
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|     public final int TRANSIT_ACTIVITY_OPEN = 6 | TRANSIT_ENTER_MASK;
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|     /** The window in the top-most activity is being closed to reveal the
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|      * previous activity in the same task. */
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|     public final int TRANSIT_ACTIVITY_CLOSE = 7 | TRANSIT_EXIT_MASK;
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|     /** A window in a new task is being opened on top of an existing one
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|      * in another activity's task. */
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|     public final int TRANSIT_TASK_OPEN = 8 | TRANSIT_ENTER_MASK;
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|     /** A window in the top-most activity is being closed to reveal the
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|      * previous activity in a different task. */
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|     public final int TRANSIT_TASK_CLOSE = 9 | TRANSIT_EXIT_MASK;
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|     /** A window in an existing task is being displayed on top of an existing one
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|      * in another activity's task. */
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|     public final int TRANSIT_TASK_TO_FRONT = 10 | TRANSIT_ENTER_MASK;
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|     /** A window in an existing task is being put below all other tasks. */
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|     public final int TRANSIT_TASK_TO_BACK = 11 | TRANSIT_EXIT_MASK;
 | |
|     /** A window in a new activity that doesn't have a wallpaper is being
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|      * opened on top of one that does, effectively closing the wallpaper. */
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|     public final int TRANSIT_WALLPAPER_CLOSE = 12 | TRANSIT_EXIT_MASK;
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|     /** A window in a new activity that does have a wallpaper is being
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|      * opened on one that didn't, effectively opening the wallpaper. */
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|     public final int TRANSIT_WALLPAPER_OPEN = 13 | TRANSIT_ENTER_MASK;
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|     /** A window in a new activity is being opened on top of an existing one,
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|      * and both are on top of the wallpaper. */
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|     public final int TRANSIT_WALLPAPER_INTRA_OPEN = 14 | TRANSIT_ENTER_MASK;
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|     /** The window in the top-most activity is being closed to reveal the
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|      * previous activity, and both are on top of he wallpaper. */
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|     public final int TRANSIT_WALLPAPER_INTRA_CLOSE = 15 | TRANSIT_EXIT_MASK;
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|     
 | |
|     // NOTE: screen off reasons are in order of significance, with more
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|     // important ones lower than less important ones.
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|     
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|     /** Screen turned off because of a device admin */
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|     public final int OFF_BECAUSE_OF_ADMIN = 1;
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|     /** Screen turned off because of power button */
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|     public final int OFF_BECAUSE_OF_USER = 2;
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|     /** Screen turned off because of timeout */
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|     public final int OFF_BECAUSE_OF_TIMEOUT = 3;
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|     /** Screen turned off because of proximity sensor */
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|     public final int OFF_BECAUSE_OF_PROX_SENSOR = 4;
 | |
| 
 | |
|     /**
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|      * Magic constant to {@link IWindowManager#setRotation} to not actually
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|      * modify the rotation.
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|      */
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|     public final int USE_LAST_ROTATION = -1000;
 | |
|     
 | |
|     /**
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|      * Perform initialization of the policy.
 | |
|      * 
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|      * @param context The system context we are running in.
 | |
|      * @param powerManager 
 | |
|      */
 | |
|     public void init(Context context, IWindowManager windowManager,
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|             LocalPowerManager powerManager);
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| 
 | |
|     /**
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|      * Check permissions when adding a window.
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|      * 
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|      * @param attrs The window's LayoutParams. 
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|      *  
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|      * @return {@link WindowManagerImpl#ADD_OKAY} if the add can proceed;
 | |
|      *      else an error code, usually
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|      *      {@link WindowManagerImpl#ADD_PERMISSION_DENIED}, to abort the add.
 | |
|      */
 | |
|     public int checkAddPermission(WindowManager.LayoutParams attrs);
 | |
| 
 | |
|     /**
 | |
|      * Sanitize the layout parameters coming from a client.  Allows the policy
 | |
|      * to do things like ensure that windows of a specific type can't take
 | |
|      * input focus.
 | |
|      * 
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|      * @param attrs The window layout parameters to be modified.  These values
 | |
|      * are modified in-place.
 | |
|      */
 | |
|     public void adjustWindowParamsLw(WindowManager.LayoutParams attrs);
 | |
|     
 | |
|     /**
 | |
|      * After the window manager has computed the current configuration based
 | |
|      * on its knowledge of the display and input devices, it gives the policy
 | |
|      * a chance to adjust the information contained in it.  If you want to
 | |
|      * leave it as-is, simply do nothing.
 | |
|      * 
 | |
|      * <p>This method may be called by any thread in the window manager, but
 | |
|      * no internal locks in the window manager will be held.
 | |
|      * 
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|      * @param config The Configuration being computed, for you to change as
 | |
|      * desired.
 | |
|      */
 | |
|     public void adjustConfigurationLw(Configuration config);
 | |
|     
 | |
|     /**
 | |
|      * Assign a window type to a layer.  Allows you to control how different
 | |
|      * kinds of windows are ordered on-screen.
 | |
|      * 
 | |
|      * @param type The type of window being assigned.
 | |
|      * 
 | |
|      * @return int An arbitrary integer used to order windows, with lower
 | |
|      *         numbers below higher ones.
 | |
|      */
 | |
|     public int windowTypeToLayerLw(int type);
 | |
| 
 | |
|     /**
 | |
|      * Return how to Z-order sub-windows in relation to the window they are
 | |
|      * attached to.  Return positive to have them ordered in front, negative for
 | |
|      * behind.
 | |
|      * 
 | |
|      * @param type The sub-window type code.
 | |
|      * 
 | |
|      * @return int Layer in relation to the attached window, where positive is
 | |
|      *         above and negative is below.
 | |
|      */
 | |
|     public int subWindowTypeToLayerLw(int type);
 | |
| 
 | |
|     /**
 | |
|      * Get the highest layer (actually one more than) that the wallpaper is
 | |
|      * allowed to be in.
 | |
|      */
 | |
|     public int getMaxWallpaperLayer();
 | |
|     
 | |
|     /**
 | |
|      * Return whether the given window should forcibly hide everything
 | |
|      * behind it.  Typically returns true for the keyguard.
 | |
|      */
 | |
|     public boolean doesForceHide(WindowState win, WindowManager.LayoutParams attrs);
 | |
|     
 | |
|     /**
 | |
|      * Determine if a window that is behind one that is force hiding
 | |
|      * (as determined by {@link #doesForceHide}) should actually be hidden.
 | |
|      * For example, typically returns false for the status bar.  Be careful
 | |
|      * to return false for any window that you may hide yourself, since this
 | |
|      * will conflict with what you set.
 | |
|      */
 | |
|     public boolean canBeForceHidden(WindowState win, WindowManager.LayoutParams attrs);
 | |
|     
 | |
|     /**
 | |
|      * Called when the system would like to show a UI to indicate that an
 | |
|      * application is starting.  You can use this to add a
 | |
|      * APPLICATION_STARTING_TYPE window with the given appToken to the window
 | |
|      * manager (using the normal window manager APIs) that will be shown until
 | |
|      * the application displays its own window.  This is called without the
 | |
|      * window manager locked so that you can call back into it.
 | |
|      * 
 | |
|      * @param appToken Token of the application being started.
 | |
|      * @param packageName The name of the application package being started. 
 | |
|      * @param theme Resource defining the application's overall visual theme.
 | |
|      * @param nonLocalizedLabel The default title label of the application if
 | |
|      *        no data is found in the resource.
 | |
|      * @param labelRes The resource ID the application would like to use as its name.
 | |
|      * @param icon The resource ID the application would like to use as its icon.
 | |
|      * 
 | |
|      * @return Optionally you can return the View that was used to create the
 | |
|      *         window, for easy removal in removeStartingWindow.
 | |
|      * 
 | |
|      * @see #removeStartingWindow
 | |
|      */
 | |
|     public View addStartingWindow(IBinder appToken, String packageName,
 | |
|             int theme, CharSequence nonLocalizedLabel,
 | |
|             int labelRes, int icon);
 | |
| 
 | |
|     /**
 | |
|      * Called when the first window of an application has been displayed, while
 | |
|      * {@link #addStartingWindow} has created a temporary initial window for
 | |
|      * that application.  You should at this point remove the window from the
 | |
|      * window manager.  This is called without the window manager locked so
 | |
|      * that you can call back into it.
 | |
|      * 
 | |
|      * <p>Note: due to the nature of these functions not being called with the
 | |
|      * window manager locked, you must be prepared for this function to be
 | |
|      * called multiple times and/or an initial time with a null View window
 | |
|      * even if you previously returned one.
 | |
|      * 
 | |
|      * @param appToken Token of the application that has started.
 | |
|      * @param window Window View that was returned by createStartingWindow.
 | |
|      * 
 | |
|      * @see #addStartingWindow
 | |
|      */
 | |
|     public void removeStartingWindow(IBinder appToken, View window);
 | |
| 
 | |
|     /**
 | |
|      * Prepare for a window being added to the window manager.  You can throw an
 | |
|      * exception here to prevent the window being added, or do whatever setup
 | |
|      * you need to keep track of the window.
 | |
|      * 
 | |
|      * @param win The window being added.
 | |
|      * @param attrs The window's LayoutParams. 
 | |
|      *  
 | |
|      * @return {@link WindowManagerImpl#ADD_OKAY} if the add can proceed, else an 
 | |
|      *         error code to abort the add.
 | |
|      */
 | |
|     public int prepareAddWindowLw(WindowState win,
 | |
|             WindowManager.LayoutParams attrs);
 | |
| 
 | |
|     /**
 | |
|      * Called when a window is being removed from a window manager.  Must not
 | |
|      * throw an exception -- clean up as much as possible.
 | |
|      * 
 | |
|      * @param win The window being removed.
 | |
|      */
 | |
|     public void removeWindowLw(WindowState win);
 | |
| 
 | |
|     /**
 | |
|      * Control the animation to run when a window's state changes.  Return a
 | |
|      * non-0 number to force the animation to a specific resource ID, or 0
 | |
|      * to use the default animation.
 | |
|      * 
 | |
|      * @param win The window that is changing.
 | |
|      * @param transit What is happening to the window: {@link #TRANSIT_ENTER},
 | |
|      *                {@link #TRANSIT_EXIT}, {@link #TRANSIT_SHOW}, or
 | |
|      *                {@link #TRANSIT_HIDE}.
 | |
|      * 
 | |
|      * @return Resource ID of the actual animation to use, or 0 for none.
 | |
|      */
 | |
|     public int selectAnimationLw(WindowState win, int transit);
 | |
| 
 | |
|     /**
 | |
|      * Create and return an animation to re-display a force hidden window.
 | |
|      */
 | |
|     public Animation createForceHideEnterAnimation();
 | |
|     
 | |
|     /**
 | |
|      * Called from the input reader thread before a key is enqueued.
 | |
|      *
 | |
|      * <p>There are some actions that need to be handled here because they
 | |
|      * affect the power state of the device, for example, the power keys.
 | |
|      * Generally, it's best to keep as little as possible in the queue thread
 | |
|      * because it's the most fragile.
 | |
|      * @param whenNanos The event time in uptime nanoseconds.
 | |
|      * @param action The key event action.
 | |
|      * @param flags The key event flags.
 | |
|      * @param keyCode The key code.
 | |
|      * @param scanCode The key's scan code.
 | |
|      * @param policyFlags The policy flags associated with the key.
 | |
|      * @param isScreenOn True if the screen is already on
 | |
|      *
 | |
|      * @return The bitwise or of the {@link #ACTION_PASS_TO_USER},
 | |
|      *          {@link #ACTION_POKE_USER_ACTIVITY} and {@link #ACTION_GO_TO_SLEEP} flags.
 | |
|      */
 | |
|     public int interceptKeyBeforeQueueing(long whenNanos, int action, int flags,
 | |
|             int keyCode, int scanCode, int policyFlags, boolean isScreenOn);
 | |
|     
 | |
|     /**
 | |
|      * Called from the input dispatcher thread before a key is dispatched to a window.
 | |
|      *
 | |
|      * <p>Allows you to define
 | |
|      * behavior for keys that can not be overridden by applications or redirect
 | |
|      * key events to a different window.  This method is called from the
 | |
|      * input thread, with no locks held.
 | |
|      * 
 | |
|      * <p>Note that if you change the window a key is dispatched to, the new
 | |
|      * target window will receive the key event without having input focus.
 | |
|      * 
 | |
|      * @param win The window that currently has focus.  This is where the key
 | |
|      *            event will normally go.
 | |
|      * @param action The key event action.
 | |
|      * @param flags The key event flags.
 | |
|      * @param keyCode The key code.
 | |
|      * @param scanCode The key's scan code.
 | |
|      * @param metaState bit mask of meta keys that are held.
 | |
|      * @param repeatCount Number of times a key down has repeated.
 | |
|      * @param policyFlags The policy flags associated with the key.
 | |
|      * @return Returns true if the policy consumed the event and it should
 | |
|      * not be further dispatched.
 | |
|      */
 | |
|     public boolean interceptKeyBeforeDispatching(WindowState win, int action, int flags,
 | |
|             int keyCode, int scanCode, int metaState, int repeatCount, int policyFlags);
 | |
| 
 | |
|     /**
 | |
|      * Called when layout of the windows is about to start.
 | |
|      * 
 | |
|      * @param displayWidth The current full width of the screen.
 | |
|      * @param displayHeight The current full height of the screen.
 | |
|      */
 | |
|     public void beginLayoutLw(int displayWidth, int displayHeight);
 | |
| 
 | |
|     /**
 | |
|      * Called for each window attached to the window manager as layout is
 | |
|      * proceeding.  The implementation of this function must take care of
 | |
|      * setting the window's frame, either here or in finishLayout().
 | |
|      * 
 | |
|      * @param win The window being positioned.
 | |
|      * @param attrs The LayoutParams of the window.
 | |
|      * @param attached For sub-windows, the window it is attached to; this
 | |
|      *                 window will already have had layoutWindow() called on it
 | |
|      *                 so you can use its Rect.  Otherwise null.
 | |
|      */
 | |
|     public void layoutWindowLw(WindowState win,
 | |
|             WindowManager.LayoutParams attrs, WindowState attached);
 | |
| 
 | |
|     
 | |
|     /**
 | |
|      * Return the insets for the areas covered by system windows. These values
 | |
|      * are computed on the most recent layout, so they are not guaranteed to
 | |
|      * be correct.
 | |
|      * 
 | |
|      * @param attrs The LayoutParams of the window.
 | |
|      * @param contentInset The areas covered by system windows, expressed as positive insets
 | |
|      * 
 | |
|      */
 | |
|     public void getContentInsetHintLw(WindowManager.LayoutParams attrs, Rect contentInset);
 | |
|     
 | |
|     /**
 | |
|      * Called when layout of the windows is finished.  After this function has
 | |
|      * returned, all windows given to layoutWindow() <em>must</em> have had a
 | |
|      * frame assigned.
 | |
|      *  
 | |
|      * @return Return any bit set of {@link #FINISH_LAYOUT_REDO_LAYOUT},
 | |
|      * {@link #FINISH_LAYOUT_REDO_CONFIG}, {@link #FINISH_LAYOUT_REDO_WALLPAPER},
 | |
|      * or {@link #FINISH_LAYOUT_REDO_ANIM}.
 | |
|      */
 | |
|     public int finishLayoutLw();
 | |
| 
 | |
|     /** Layout state may have changed (so another layout will be performed) */
 | |
|     static final int FINISH_LAYOUT_REDO_LAYOUT = 0x0001;
 | |
|     /** Configuration state may have changed */
 | |
|     static final int FINISH_LAYOUT_REDO_CONFIG = 0x0002;
 | |
|     /** Wallpaper may need to move */
 | |
|     static final int FINISH_LAYOUT_REDO_WALLPAPER = 0x0004;
 | |
|     /** Need to recompute animations */
 | |
|     static final int FINISH_LAYOUT_REDO_ANIM = 0x0008;
 | |
|     
 | |
|     /**
 | |
|      * Called when animation of the windows is about to start.
 | |
|      * 
 | |
|      * @param displayWidth The current full width of the screen.
 | |
|      * @param displayHeight The current full height of the screen.
 | |
|      */
 | |
|     public void beginAnimationLw(int displayWidth, int displayHeight);
 | |
| 
 | |
|     /**
 | |
|      * Called each time a window is animating.
 | |
|      * 
 | |
|      * @param win The window being positioned.
 | |
|      * @param attrs The LayoutParams of the window. 
 | |
|      */
 | |
|     public void animatingWindowLw(WindowState win,
 | |
|             WindowManager.LayoutParams attrs);
 | |
| 
 | |
|     /**
 | |
|      * Called when animation of the windows is finished.  If in this function you do 
 | |
|      * something that may have modified the animation state of another window, 
 | |
|      * be sure to return true in order to perform another animation frame. 
 | |
|      *  
 | |
|      * @return Return any bit set of {@link #FINISH_LAYOUT_REDO_LAYOUT},
 | |
|      * {@link #FINISH_LAYOUT_REDO_CONFIG}, {@link #FINISH_LAYOUT_REDO_WALLPAPER},
 | |
|      * or {@link #FINISH_LAYOUT_REDO_ANIM}.
 | |
|      */
 | |
|     public int finishAnimationLw();
 | |
| 
 | |
|     /**
 | |
|      * Return true if it is okay to perform animations for an app transition
 | |
|      * that is about to occur.  You may return false for this if, for example,
 | |
|      * the lock screen is currently displayed so the switch should happen
 | |
|      * immediately.
 | |
|      */
 | |
|     public boolean allowAppAnimationsLw();
 | |
|     
 | |
|     /**
 | |
|      * Called after the screen turns off.
 | |
|      *
 | |
|      * @param why {@link #OFF_BECAUSE_OF_USER} or
 | |
|      * {@link #OFF_BECAUSE_OF_TIMEOUT}.
 | |
|      */
 | |
|     public void screenTurnedOff(int why);
 | |
| 
 | |
|     /**
 | |
|      * Called after the screen turns on.
 | |
|      */
 | |
|     public void screenTurnedOn();
 | |
| 
 | |
|     /**
 | |
|      * Return whether the screen is currently on.
 | |
|      */
 | |
|     public boolean isScreenOn();
 | |
| 
 | |
|     /**
 | |
|      * Tell the policy that the lid switch has changed state.
 | |
|      * @param whenNanos The time when the change occurred in uptime nanoseconds.
 | |
|      * @param lidOpen True if the lid is now open.
 | |
|      */
 | |
|     public void notifyLidSwitchChanged(long whenNanos, boolean lidOpen);
 | |
|     
 | |
|     /**
 | |
|      * Tell the policy that the jack switch has changed state.
 | |
|      * @param whenNanos The time when the change occurred in uptime nanoseconds..
 | |
|      * @param switchCode Explains the Jack types
 | |
|      * @param jackOpen True if the jacktype is now inserted.
 | |
|      */
 | |
|     public void notifyJackSwitchChanged(long whenNanos, int switchCode, boolean jackOpen);
 | |
| 
 | |
|     /**
 | |
|      * Tell the policy if anyone is requesting that keyguard not come on.
 | |
|      *
 | |
|      * @param enabled Whether keyguard can be on or not.  does not actually
 | |
|      * turn it on, unless it was previously disabled with this function.
 | |
|      *
 | |
|      * @see android.app.KeyguardManager.KeyguardLock#disableKeyguard()
 | |
|      * @see android.app.KeyguardManager.KeyguardLock#reenableKeyguard()
 | |
|      */
 | |
|     public void enableKeyguard(boolean enabled);
 | |
| 
 | |
|     /**
 | |
|      * Callback used by {@link WindowManagerPolicy#exitKeyguardSecurely}
 | |
|      */
 | |
|     interface OnKeyguardExitResult {
 | |
|         void onKeyguardExitResult(boolean success);
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Tell the policy if anyone is requesting the keyguard to exit securely
 | |
|      * (this would be called after the keyguard was disabled)
 | |
|      * @param callback Callback to send the result back.
 | |
|      * @see android.app.KeyguardManager#exitKeyguardSecurely(android.app.KeyguardManager.OnKeyguardExitResult)
 | |
|      */
 | |
|     void exitKeyguardSecurely(OnKeyguardExitResult callback);
 | |
| 
 | |
|     /**
 | |
|      * inKeyguardRestrictedKeyInputMode
 | |
|      *
 | |
|      * if keyguard screen is showing or in restricted key input mode (i.e. in
 | |
|      * keyguard password emergency screen). When in such mode, certain keys,
 | |
|      * such as the Home key and the right soft keys, don't work.
 | |
|      *
 | |
|      * @return true if in keyguard restricted input mode.
 | |
|      */
 | |
|     public boolean inKeyguardRestrictedKeyInputMode();
 | |
| 
 | |
|     /**
 | |
|      * Given an orientation constant
 | |
|      * ({@link android.content.pm.ActivityInfo#SCREEN_ORIENTATION_LANDSCAPE
 | |
|      * ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE} or
 | |
|      * {@link android.content.pm.ActivityInfo#SCREEN_ORIENTATION_PORTRAIT
 | |
|      * ActivityInfo.SCREEN_ORIENTATION_PORTRAIT}), return a surface
 | |
|      * rotation.
 | |
|      */
 | |
|     public int rotationForOrientationLw(int orientation, int lastRotation,
 | |
|             boolean displayEnabled);
 | |
|     
 | |
|     /**
 | |
|      * Called when the system is mostly done booting to determine whether
 | |
|      * the system should go into safe mode.
 | |
|      */
 | |
|     public boolean detectSafeMode();
 | |
|     
 | |
|     /**
 | |
|      * Called when the system is mostly done booting.
 | |
|      */
 | |
|     public void systemReady();
 | |
| 
 | |
|     /**
 | |
|      * Called when userActivity is signalled in the power manager.
 | |
|      * This is safe to call from any thread, with any window manager locks held or not.
 | |
|      */
 | |
|     public void userActivity();
 | |
| 
 | |
|     /**
 | |
|      * Called when we have finished booting and can now display the home
 | |
|      * screen to the user.  This wilWl happen after systemReady(), and at
 | |
|      * this point the display is active.
 | |
|      */
 | |
|     public void enableScreenAfterBoot();
 | |
|     
 | |
|     public void setCurrentOrientationLw(int newOrientation);
 | |
|     
 | |
|     /**
 | |
|      * Call from application to perform haptic feedback on its window.
 | |
|      */
 | |
|     public boolean performHapticFeedbackLw(WindowState win, int effectId, boolean always);
 | |
|     
 | |
|     /**
 | |
|      * Called when we have stopped keeping the screen on because a window
 | |
|      * requesting this is no longer visible.
 | |
|      */
 | |
|     public void screenOnStoppedLw();
 | |
| 
 | |
|     /**
 | |
|      * Return false to disable key repeat events from being generated.
 | |
|      */
 | |
|     public boolean allowKeyRepeat();
 | |
| }
 | 
