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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.hardware.input;
import android.annotation.FloatRange;
import android.annotation.NonNull;
import android.annotation.SystemApi;
import android.os.Parcel;
import android.os.Parcelable;
import com.android.internal.util.Preconditions;
/**
* An event describing a mouse scroll interaction originating from a remote device.
*
* See {@link android.view.MotionEvent}.
*
* @hide
*/
@SystemApi
public final class VirtualMouseScrollEvent implements Parcelable {
private final float mXAxisMovement;
private final float mYAxisMovement;
private VirtualMouseScrollEvent(float xAxisMovement, float yAxisMovement) {
mXAxisMovement = xAxisMovement;
mYAxisMovement = yAxisMovement;
}
private VirtualMouseScrollEvent(@NonNull Parcel parcel) {
mXAxisMovement = parcel.readFloat();
mYAxisMovement = parcel.readFloat();
}
@Override
public void writeToParcel(@NonNull Parcel parcel, int parcelableFlags) {
parcel.writeFloat(mXAxisMovement);
parcel.writeFloat(mYAxisMovement);
}
@Override
public int describeContents() {
return 0;
}
/**
* Returns the x-axis scroll movement, normalized from -1.0 to 1.0, inclusive. Positive values
* indicate scrolling upward; negative values, downward.
*/
public float getXAxisMovement() {
return mXAxisMovement;
}
/**
* Returns the y-axis scroll movement, normalized from -1.0 to 1.0, inclusive. Positive values
* indicate scrolling towards the right; negative values, to the left.
*/
public float getYAxisMovement() {
return mYAxisMovement;
}
/**
* Builder for {@link VirtualMouseScrollEvent}.
*/
public static final class Builder {
private float mXAxisMovement;
private float mYAxisMovement;
/**
* Creates a {@link VirtualMouseScrollEvent} object with the current builder configuration.
*/
public @NonNull VirtualMouseScrollEvent build() {
return new VirtualMouseScrollEvent(mXAxisMovement, mYAxisMovement);
}
/**
* Sets the x-axis scroll movement, normalized from -1.0 to 1.0, inclusive. Positive values
* indicate scrolling upward; negative values, downward.
*
* @return this builder, to allow for chaining of calls
*/
public @NonNull Builder setXAxisMovement(
@FloatRange(from = -1.0f, to = 1.0f) float xAxisMovement) {
Preconditions.checkArgumentInRange(xAxisMovement, -1f, 1f, "xAxisMovement");
mXAxisMovement = xAxisMovement;
return this;
}
/**
* Sets the y-axis scroll movement, normalized from -1.0 to 1.0, inclusive. Positive values
* indicate scrolling towards the right; negative values, to the left.
*
* @return this builder, to allow for chaining of calls
*/
public @NonNull Builder setYAxisMovement(
@FloatRange(from = -1.0f, to = 1.0f) float yAxisMovement) {
Preconditions.checkArgumentInRange(yAxisMovement, -1f, 1f, "yAxisMovement");
mYAxisMovement = yAxisMovement;
return this;
}
}
public static final @NonNull Parcelable.Creator<VirtualMouseScrollEvent> CREATOR =
new Parcelable.Creator<VirtualMouseScrollEvent>() {
public VirtualMouseScrollEvent createFromParcel(Parcel source) {
return new VirtualMouseScrollEvent(source);
}
public VirtualMouseScrollEvent[] newArray(int size) {
return new VirtualMouseScrollEvent[size];
}
};
}
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