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/*
* Copyright (C) 2011 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.server.wm;
import android.os.IBinder;
import java.io.PrintWriter;
/**
* Container of a set of related windows in the window manager. Often this
* is an AppWindowToken, which is the handle for an Activity that it uses
* to display windows. For nested windows, there is a WindowToken created for
* the parent window to manage its children.
*/
class WindowToken {
// The window manager!
final WindowManagerService service;
// The actual token.
final IBinder token;
// The type of window this token is for, as per WindowManager.LayoutParams.
final int windowType;
// Set if this token was explicitly added by a client, so should
// not be removed when all windows are removed.
final boolean explicit;
// For printing.
String stringName;
// If this is an AppWindowToken, this is non-null.
AppWindowToken appWindowToken;
// All of the windows associated with this token.
final WindowList windows = new WindowList();
// Is key dispatching paused for this token?
boolean paused = false;
// Should this token's windows be hidden?
boolean hidden;
// Temporary for finding which tokens no longer have visible windows.
boolean hasVisible;
// Set to true when this token is in a pending transaction where it
// will be shown.
boolean waitingToShow;
// Set to true when this token is in a pending transaction where it
// will be hidden.
boolean waitingToHide;
// Set to true when this token is in a pending transaction where its
// windows will be put to the bottom of the list.
boolean sendingToBottom;
WindowToken(WindowManagerService _service, IBinder _token, int type, boolean _explicit) {
service = _service;
token = _token;
windowType = type;
explicit = _explicit;
}
void dump(PrintWriter pw, String prefix) {
pw.print(prefix); pw.print("windows="); pw.println(windows);
pw.print(prefix); pw.print("windowType="); pw.print(windowType);
pw.print(" hidden="); pw.print(hidden);
pw.print(" hasVisible="); pw.println(hasVisible);
if (waitingToShow || waitingToHide || sendingToBottom) {
pw.print(prefix); pw.print("waitingToShow="); pw.print(waitingToShow);
pw.print(" waitingToHide="); pw.print(waitingToHide);
pw.print(" sendingToBottom="); pw.print(sendingToBottom);
}
}
@Override
public String toString() {
if (stringName == null) {
StringBuilder sb = new StringBuilder();
sb.append("WindowToken{");
sb.append(Integer.toHexString(System.identityHashCode(this)));
sb.append(" "); sb.append(token); sb.append('}');
stringName = sb.toString();
}
return stringName;
}
}
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