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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.os.vibrator;
import android.annotation.NonNull;
import android.annotation.Nullable;
import android.annotation.TestApi;
import android.os.Parcel;
import android.os.Parcelable;
import android.os.VibrationEffect;
import com.android.internal.util.Preconditions;
import java.util.Objects;
/**
* Representation of {@link VibrationEffectSegment} that plays a primitive vibration effect after a
* specified delay and applying a given scale.
*
* @hide
*/
@TestApi
public final class PrimitiveSegment extends VibrationEffectSegment {
private final int mPrimitiveId;
private final float mScale;
private final int mDelay;
PrimitiveSegment(@NonNull Parcel in) {
this(in.readInt(), in.readFloat(), in.readInt());
}
/** @hide */
public PrimitiveSegment(int id, float scale, int delay) {
mPrimitiveId = id;
mScale = scale;
mDelay = delay;
}
public int getPrimitiveId() {
return mPrimitiveId;
}
public float getScale() {
return mScale;
}
public int getDelay() {
return mDelay;
}
@Override
public long getDuration() {
return -1;
}
/** @hide */
@Override
public boolean isHapticFeedbackCandidate() {
return true;
}
/** @hide */
@Override
public boolean hasNonZeroAmplitude() {
// Every primitive plays a vibration with a non-zero amplitude, even at scale == 0.
return true;
}
/** @hide */
@NonNull
@Override
public PrimitiveSegment resolve(int defaultAmplitude) {
return this;
}
/** @hide */
@NonNull
@Override
public PrimitiveSegment scale(float scaleFactor) {
return new PrimitiveSegment(mPrimitiveId, VibrationEffect.scale(mScale, scaleFactor),
mDelay);
}
/** @hide */
@NonNull
@Override
public PrimitiveSegment applyEffectStrength(int effectStrength) {
return this;
}
/** @hide */
@Override
public void validate() {
Preconditions.checkArgumentInRange(mPrimitiveId, VibrationEffect.Composition.PRIMITIVE_NOOP,
VibrationEffect.Composition.PRIMITIVE_LOW_TICK, "primitiveId");
Preconditions.checkArgumentInRange(mScale, 0f, 1f, "scale");
VibrationEffectSegment.checkDurationArgument(mDelay, "delay");
}
@Override
public void writeToParcel(@NonNull Parcel dest, int flags) {
dest.writeInt(PARCEL_TOKEN_PRIMITIVE);
dest.writeInt(mPrimitiveId);
dest.writeFloat(mScale);
dest.writeInt(mDelay);
}
@Override
public int describeContents() {
return 0;
}
@Override
public String toString() {
return "Primitive{"
+ "primitive=" + VibrationEffect.Composition.primitiveToString(mPrimitiveId)
+ ", scale=" + mScale
+ ", delay=" + mDelay
+ '}';
}
@Override
public boolean equals(@Nullable Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
PrimitiveSegment that = (PrimitiveSegment) o;
return mPrimitiveId == that.mPrimitiveId
&& Float.compare(that.mScale, mScale) == 0
&& mDelay == that.mDelay;
}
@Override
public int hashCode() {
return Objects.hash(mPrimitiveId, mScale, mDelay);
}
@NonNull
public static final Parcelable.Creator<PrimitiveSegment> CREATOR =
new Parcelable.Creator<PrimitiveSegment>() {
@Override
public PrimitiveSegment createFromParcel(Parcel in) {
// Skip the type token
in.readInt();
return new PrimitiveSegment(in);
}
@Override
public PrimitiveSegment[] newArray(int size) {
return new PrimitiveSegment[size];
}
};
}
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