71 lines
2.4 KiB
Java
71 lines
2.4 KiB
Java
/*
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* Copyright (C) 2008 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.internal.widget;
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import android.compat.annotation.UnsupportedAppUsage;
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import android.content.Context;
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import android.graphics.Rect;
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import android.os.Build;
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import android.util.AttributeSet;
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import android.view.MotionEvent;
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import android.view.View;
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import android.widget.LinearLayout;
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/**
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* Like a normal linear layout, but supports dispatching all otherwise unhandled
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* touch events to a particular descendant. This is for the unlock screen, so
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* that a wider range of touch events than just the lock pattern widget can kick
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* off a lock pattern if the finger is eventually dragged into the bounds of the
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* lock pattern view.
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*/
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public class LinearLayoutWithDefaultTouchRecepient extends LinearLayout {
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private final Rect mTempRect = new Rect();
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private View mDefaultTouchRecepient;
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@UnsupportedAppUsage
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public LinearLayoutWithDefaultTouchRecepient(Context context) {
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super(context);
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}
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public LinearLayoutWithDefaultTouchRecepient(Context context, AttributeSet attrs) {
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super(context, attrs);
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}
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@UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553)
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public void setDefaultTouchRecepient(View defaultTouchRecepient) {
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mDefaultTouchRecepient = defaultTouchRecepient;
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}
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@Override
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public boolean dispatchTouchEvent(MotionEvent ev) {
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if (mDefaultTouchRecepient == null) {
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return super.dispatchTouchEvent(ev);
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}
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if (super.dispatchTouchEvent(ev)) {
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return true;
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}
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mTempRect.set(0, 0, 0, 0);
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offsetRectIntoDescendantCoords(mDefaultTouchRecepient, mTempRect);
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ev.setLocation(ev.getX() + mTempRect.left, ev.getY() + mTempRect.top);
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return mDefaultTouchRecepient.dispatchTouchEvent(ev);
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}
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}
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