83 lines
3.0 KiB
Java
83 lines
3.0 KiB
Java
/*
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* Copyright (C) 2020 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 android.service.autofill;
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import android.annotation.NonNull;
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import android.annotation.SuppressLint;
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import android.content.Context;
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import android.os.RemoteException;
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import android.util.Log;
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import android.util.MathUtils;
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import android.view.MotionEvent;
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import android.view.ViewConfiguration;
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import android.widget.FrameLayout;
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/**
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* This class is the root view for an inline suggestion. It is responsible for
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* detecting the click on the item and to also transfer input focus to the IME
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* window if we detect the user is scrolling.
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*
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* @hide
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*/
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@SuppressLint("ViewConstructor")
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public class InlineSuggestionRoot extends FrameLayout {
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private static final String TAG = "InlineSuggestionRoot";
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private final @NonNull IInlineSuggestionUiCallback mCallback;
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private final int mTouchSlop;
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private float mDownX;
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private float mDownY;
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public InlineSuggestionRoot(@NonNull Context context,
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@NonNull IInlineSuggestionUiCallback callback) {
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super(context);
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mCallback = callback;
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mTouchSlop = ViewConfiguration.get(context).getScaledTouchSlop();
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setFocusable(false);
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}
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@Override
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@SuppressLint("ClickableViewAccessibility")
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public boolean dispatchTouchEvent(@NonNull MotionEvent event) {
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switch (event.getActionMasked()) {
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case MotionEvent.ACTION_DOWN: {
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mDownX = event.getX();
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mDownY = event.getY();
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}
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// Intentionally fall through to the next case so that when the window is obscured
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// we transfer the touch to the remote IME window and don't handle it locally.
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case MotionEvent.ACTION_MOVE: {
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final float distance = MathUtils.dist(mDownX, mDownY,
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event.getX(), event.getY());
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final boolean isSecure = (event.getFlags()
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& MotionEvent.FLAG_WINDOW_IS_PARTIALLY_OBSCURED) == 0;
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if (!isSecure || distance > mTouchSlop) {
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try {
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mCallback.onTransferTouchFocusToImeWindow(getViewRootImpl().getInputToken(),
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getContext().getDisplayId());
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} catch (RemoteException e) {
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Log.w(TAG, "RemoteException transferring touch focus to IME");
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}
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}
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} break;
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}
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return super.dispatchTouchEvent(event);
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}
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}
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