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/*
* Copyright (C) 2006 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 android.view;
/**
* Provides low-level communication with the system window manager for
* operations that are bound to a particular context, display or parent window.
* Instances of this object are sensitive to the compatibility info associated
* with the running application.
*
* This object implements the {@link ViewManager} interface,
* allowing you to add any View subclass as a top-level window on the screen.
* Additional window manager specific layout parameters are defined for
* control over how windows are displayed. It also implements the {@link WindowManager}
* interface, allowing you to control the displays attached to the device.
*
* <p>Applications will not normally use WindowManager directly, instead relying
* on the higher-level facilities in {@link android.app.Activity} and
* {@link android.app.Dialog}.
*
* <p>Even for low-level window manager access, it is almost never correct to use
* this class. For example, {@link android.app.Activity#getWindowManager}
* provides a window manager for adding windows that are associated with that
* activity -- the window manager will not normally allow you to add arbitrary
* windows that are not associated with an activity.
*
* @see WindowManager
* @see WindowManagerGlobal
* @hide
*/
public final class WindowManagerImpl implements WindowManager {
private final WindowManagerGlobal mGlobal = WindowManagerGlobal.getInstance();
private final Display mDisplay;
private final Window mParentWindow;
public WindowManagerImpl(Display display) {
this(display, null);
}
private WindowManagerImpl(Display display, Window parentWindow) {
mDisplay = display;
mParentWindow = parentWindow;
}
public WindowManagerImpl createLocalWindowManager(Window parentWindow) {
return new WindowManagerImpl(mDisplay, parentWindow);
}
public WindowManagerImpl createPresentationWindowManager(Display display) {
return new WindowManagerImpl(display, mParentWindow);
}
@Override
public void addView(View view, ViewGroup.LayoutParams params) {
mGlobal.addView(view, params, mDisplay, mParentWindow);
}
@Override
public void updateViewLayout(View view, ViewGroup.LayoutParams params) {
mGlobal.updateViewLayout(view, params);
}
@Override
public void removeView(View view) {
mGlobal.removeView(view, false);
}
@Override
public void removeViewImmediate(View view) {
mGlobal.removeView(view, true);
}
@Override
public Display getDefaultDisplay() {
return mDisplay;
}
}
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