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/*
* Copyright (C) 2021 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;
import android.annotation.NonNull;
import android.os.Parcel;
import android.os.Parcelable;
import java.util.Arrays;
import java.util.StringJoiner;
/**
* A collection of visibilities of insets. This is used for carrying the requested visibilities.
* @hide
*/
public class InsetsVisibilities implements Parcelable {
private static final int UNSPECIFIED = 0;
private static final int VISIBLE = 1;
private static final int INVISIBLE = -1;
private final int[] mVisibilities = new int[InsetsState.SIZE];
public InsetsVisibilities() {
}
public InsetsVisibilities(InsetsVisibilities other) {
set(other);
}
public InsetsVisibilities(Parcel in) {
in.readIntArray(mVisibilities);
}
/**
* Copies from another {@link InsetsVisibilities}.
*
* @param other an instance of {@link InsetsVisibilities}.
*/
public void set(InsetsVisibilities other) {
System.arraycopy(other.mVisibilities, InsetsState.FIRST_TYPE, mVisibilities,
InsetsState.FIRST_TYPE, InsetsState.SIZE);
}
/**
* Sets a visibility to a type.
*
* @param type The {@link @InsetsState.InternalInsetsType}.
* @param visible {@code true} represents visible; {@code false} represents invisible.
*/
public void setVisibility(@InsetsState.InternalInsetsType int type, boolean visible) {
mVisibilities[type] = visible ? VISIBLE : INVISIBLE;
}
/**
* Returns the specified insets visibility of the type. If it has never been specified,
* this returns the default visibility.
*
* @param type The {@link @InsetsState.InternalInsetsType}.
* @return The specified visibility or the default one if it is not specified.
*/
public boolean getVisibility(@InsetsState.InternalInsetsType int type) {
final int visibility = mVisibilities[type];
return visibility == UNSPECIFIED
? InsetsState.getDefaultVisibility(type)
: visibility == VISIBLE;
}
@Override
public String toString() {
StringJoiner joiner = new StringJoiner(", ");
for (int type = InsetsState.FIRST_TYPE; type <= InsetsState.LAST_TYPE; type++) {
final int visibility = mVisibilities[type];
if (visibility != UNSPECIFIED) {
joiner.add(InsetsState.typeToString(type) + ": "
+ (visibility == VISIBLE ? "visible" : "invisible"));
}
}
return joiner.toString();
}
@Override
public int hashCode() {
return Arrays.hashCode(mVisibilities);
}
@Override
public boolean equals(Object other) {
if (!(other instanceof InsetsVisibilities)) {
return false;
}
return Arrays.equals(mVisibilities, ((InsetsVisibilities) other).mVisibilities);
}
@Override
public int describeContents() {
return 0;
}
@Override
public void writeToParcel(Parcel dest, int flags) {
dest.writeIntArray(mVisibilities);
}
public void readFromParcel(@NonNull Parcel in) {
in.readIntArray(mVisibilities);
}
public static final @NonNull Creator<InsetsVisibilities> CREATOR =
new Creator<InsetsVisibilities>() {
public InsetsVisibilities createFromParcel(Parcel in) {
return new InsetsVisibilities(in);
}
public InsetsVisibilities[] newArray(int size) {
return new InsetsVisibilities[size];
}
};
}
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