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/*
* Copyright (C) 2015 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.launcher3;
import android.content.Context;
import android.graphics.Rect;
import android.util.AttributeSet;
import android.widget.FrameLayout;
/**
* A base container view, which supports resizing.
*/
public class BaseContainerView extends FrameLayout implements Insettable {
protected Rect mInsets = new Rect();
protected Rect mFixedBounds = new Rect();
protected int mFixedBoundsContainerInset;
public BaseContainerView(Context context) {
this(context, null);
}
public BaseContainerView(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public BaseContainerView(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
mFixedBoundsContainerInset = context.getResources().getDimensionPixelSize(
R.dimen.container_fixed_bounds_inset);
}
@Override
final public void setInsets(Rect insets) {
mInsets.set(insets);
onUpdateBackgrounds();
onUpdatePaddings();
}
/**
* Sets the fixed bounds for this container view.
*/
final public void setFixedBounds(Rect fixedBounds) {
if (!fixedBounds.isEmpty() && !fixedBounds.equals(mFixedBounds)) {
mFixedBounds.set(fixedBounds);
if (Launcher.DISABLE_ALL_APPS_SEARCH_INTEGRATION) {
mFixedBounds.top = mInsets.top;
mFixedBounds.bottom = mInsets.bottom;
}
// To ensure that the child RecyclerView has the full width to handle touches right to
// the edge of the screen, we only apply the top and bottom padding to the bounds
mFixedBounds.top += mFixedBoundsContainerInset;
mFixedBounds.bottom += mFixedBoundsContainerInset;
onFixedBoundsUpdated();
}
// Post the updates since they can trigger a relayout, and this call can be triggered from
// a layout pass itself.
post(new Runnable() {
@Override
public void run() {
onUpdateBackgrounds();
onUpdatePaddings();
}
});
}
/**
* Update the UI in response to a change in the fixed bounds.
*/
protected void onFixedBoundsUpdated() {
// Do nothing
}
/**
* Update the paddings in response to a change in the bounds or insets.
*/
protected void onUpdatePaddings() {
// Do nothing
}
/**
* Update the backgrounds in response to a change in the bounds or insets.
*/
protected void onUpdateBackgrounds() {
// Do nothing
}
}
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