/*
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* Copyright (C) 2012 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.launcher3;
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import android.view.View;
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import android.view.ViewConfiguration;
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import com.android.launcher3.util.Thunk;
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public class CheckLongPressHelper {
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public static final float DEFAULT_LONG_PRESS_TIMEOUT_FACTOR = 0.75f;
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@Thunk View mView;
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@Thunk View.OnLongClickListener mListener;
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@Thunk boolean mHasPerformedLongPress;
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private float mLongPressTimeoutFactor = DEFAULT_LONG_PRESS_TIMEOUT_FACTOR;
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private CheckForLongPress mPendingCheckForLongPress;
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class CheckForLongPress implements Runnable {
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public void run() {
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if ((mView.getParent() != null) && mView.hasWindowFocus()
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&& !mHasPerformedLongPress) {
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boolean handled;
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if (mListener != null) {
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handled = mListener.onLongClick(mView);
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} else {
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handled = mView.performLongClick();
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}
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if (handled) {
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mView.setPressed(false);
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mHasPerformedLongPress = true;
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}
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}
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}
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}
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public CheckLongPressHelper(View v) {
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mView = v;
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}
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public CheckLongPressHelper(View v, View.OnLongClickListener listener) {
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mView = v;
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mListener = listener;
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}
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/**
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* Overrides the default long press timeout.
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*/
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public void setLongPressTimeoutFactor(float longPressTimeoutFactor) {
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mLongPressTimeoutFactor = longPressTimeoutFactor;
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}
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public void postCheckForLongPress() {
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mHasPerformedLongPress = false;
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if (mPendingCheckForLongPress == null) {
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mPendingCheckForLongPress = new CheckForLongPress();
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}
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mView.postDelayed(mPendingCheckForLongPress,
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(long) (ViewConfiguration.getLongPressTimeout() * mLongPressTimeoutFactor));
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}
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public void cancelLongPress() {
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mHasPerformedLongPress = false;
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if (mPendingCheckForLongPress != null) {
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mView.removeCallbacks(mPendingCheckForLongPress);
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mPendingCheckForLongPress = null;
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}
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}
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public boolean hasPerformedLongPress() {
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return mHasPerformedLongPress;
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}
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}
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